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authorLinus Torvalds <torvalds@g5.osdl.org>2005-11-10 10:37:51 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-10 10:37:51 -0500
commit3ae0af12b458461f36dfddb26e54056be32928dd (patch)
tree063059f24f42506ce2a86374a3b6e2b7a8ae3fcf /arch
parent3b44f137b9a846c5452d9e6e1271b79b1dbcc942 (diff)
parent7c43ee40ec602db3fa27e6e2d4f092f06ab0901c (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/Kconfig4
-rw-r--r--arch/powerpc/kernel/Makefile13
-rw-r--r--arch/powerpc/kernel/asm-offsets.c1
-rw-r--r--arch/powerpc/kernel/cpu_setup_power4.S (renamed from arch/ppc64/kernel/cpu_setup_power4.S)8
-rw-r--r--arch/powerpc/kernel/cputable.c19
-rw-r--r--arch/powerpc/kernel/firmware.c (renamed from arch/ppc64/kernel/firmware.c)2
-rw-r--r--arch/powerpc/kernel/fpu.S24
-rw-r--r--arch/powerpc/kernel/head_64.S91
-rw-r--r--arch/powerpc/kernel/ioctl32.c (renamed from arch/ppc64/kernel/ioctl32.c)4
-rw-r--r--arch/powerpc/kernel/irq.c (renamed from arch/ppc64/kernel/irq.c)265
-rw-r--r--arch/powerpc/kernel/lparcfg.c (renamed from arch/ppc64/kernel/lparcfg.c)13
-rw-r--r--arch/powerpc/kernel/misc_32.S23
-rw-r--r--arch/powerpc/kernel/misc_64.S8
-rw-r--r--arch/powerpc/kernel/paca.c (renamed from arch/ppc64/kernel/pacaData.c)7
-rw-r--r--arch/powerpc/kernel/ppc_ksyms.c5
-rw-r--r--arch/powerpc/kernel/proc_ppc64.c (renamed from arch/ppc64/kernel/proc_ppc64.c)12
-rw-r--r--arch/powerpc/kernel/prom.c35
-rw-r--r--arch/powerpc/kernel/prom_init.c187
-rw-r--r--arch/powerpc/kernel/rtas-proc.c2
-rw-r--r--arch/powerpc/kernel/rtas.c5
-rw-r--r--arch/powerpc/kernel/rtas_pci.c (renamed from arch/ppc64/kernel/rtas_pci.c)47
-rw-r--r--arch/powerpc/kernel/setup-common.c37
-rw-r--r--arch/powerpc/kernel/setup.h6
-rw-r--r--arch/powerpc/kernel/setup_32.c18
-rw-r--r--arch/powerpc/kernel/setup_64.c93
-rw-r--r--arch/powerpc/kernel/signal_32.c1
-rw-r--r--arch/powerpc/kernel/smp.c9
-rw-r--r--arch/powerpc/kernel/sys_ppc32.c1
-rw-r--r--arch/powerpc/kernel/sysfs.c (renamed from arch/ppc64/kernel/sysfs.c)2
-rw-r--r--arch/powerpc/kernel/time.c31
-rw-r--r--arch/powerpc/kernel/traps.c2
-rw-r--r--arch/powerpc/lib/bitops.c2
-rw-r--r--arch/powerpc/mm/hash_utils_64.c38
-rw-r--r--arch/powerpc/mm/init_32.c3
-rw-r--r--arch/powerpc/mm/init_64.c20
-rw-r--r--arch/powerpc/mm/mem.c4
-rw-r--r--arch/powerpc/mm/pgtable_64.c7
-rw-r--r--arch/powerpc/mm/stab.c21
-rw-r--r--arch/powerpc/oprofile/op_model_power4.c3
-rw-r--r--arch/powerpc/platforms/chrp/setup.c4
-rw-r--r--arch/powerpc/platforms/iseries/irq.c24
-rw-r--r--arch/powerpc/platforms/iseries/misc.S1
-rw-r--r--arch/powerpc/platforms/iseries/setup.c27
-rw-r--r--arch/powerpc/platforms/maple/pci.c3
-rw-r--r--arch/powerpc/platforms/powermac/pci.c3
-rw-r--r--arch/powerpc/platforms/powermac/pic.c3
-rw-r--r--arch/powerpc/platforms/powermac/smp.c51
-rw-r--r--arch/powerpc/platforms/pseries/Makefile2
-rw-r--r--arch/powerpc/platforms/pseries/eeh.c (renamed from arch/ppc64/kernel/eeh.c)659
-rw-r--r--arch/powerpc/platforms/pseries/eeh_event.c155
-rw-r--r--arch/powerpc/platforms/pseries/iommu.c3
-rw-r--r--arch/powerpc/platforms/pseries/pci.c3
-rw-r--r--arch/powerpc/platforms/pseries/reconfig.c2
-rw-r--r--arch/powerpc/platforms/pseries/rtasd.c8
-rw-r--r--arch/powerpc/platforms/pseries/scanlog.c (renamed from arch/ppc64/kernel/scanlog.c)0
-rw-r--r--arch/powerpc/platforms/pseries/setup.c8
-rw-r--r--arch/powerpc/platforms/pseries/smp.c5
-rw-r--r--arch/powerpc/platforms/pseries/xics.c7
-rw-r--r--arch/powerpc/sysdev/u3_iommu.c2
-rw-r--r--arch/powerpc/xmon/Makefile2
-rw-r--r--arch/powerpc/xmon/nonstdio.c134
-rw-r--r--arch/powerpc/xmon/nonstdio.h28
-rw-r--r--arch/powerpc/xmon/setjmp.S176
-rw-r--r--arch/powerpc/xmon/start_32.c235
-rw-r--r--arch/powerpc/xmon/start_64.c167
-rw-r--r--arch/powerpc/xmon/start_8xx.c255
-rw-r--r--arch/powerpc/xmon/subr_prf.c54
-rw-r--r--arch/powerpc/xmon/xmon.c50
-rw-r--r--arch/ppc/boot/include/of1275.h3
-rw-r--r--arch/ppc/boot/of1275/Makefile2
-rw-r--r--arch/ppc/boot/of1275/call_prom.c74
-rw-r--r--arch/ppc/boot/of1275/claim.c97
-rw-r--r--arch/ppc/boot/of1275/finddevice.c19
-rw-r--r--arch/ppc/boot/openfirmware/Makefile3
-rw-r--r--arch/ppc/kernel/Makefile5
-rw-r--r--arch/ppc/kernel/head_booke.h2
-rw-r--r--arch/ppc/kernel/irq.c165
-rw-r--r--arch/ppc/kernel/misc.S4
-rw-r--r--arch/ppc/kernel/ppc_ksyms.c7
-rw-r--r--arch/ppc/kernel/setup.c1
-rw-r--r--arch/ppc/platforms/pmac_pic.c3
-rw-r--r--arch/ppc/platforms/prep_setup.c9
-rw-r--r--arch/ppc64/Kconfig4
-rw-r--r--arch/ppc64/boot/addRamDisk.c207
-rw-r--r--arch/ppc64/kernel/Makefile16
-rw-r--r--arch/ppc64/kernel/asm-offsets.c1
-rw-r--r--arch/ppc64/kernel/head.S84
-rw-r--r--arch/ppc64/kernel/idle.c1
-rw-r--r--arch/ppc64/kernel/misc.S8
-rw-r--r--arch/ppc64/kernel/nvram.c5
-rw-r--r--arch/ppc64/kernel/pci.c10
-rw-r--r--arch/ppc64/kernel/pci_dn.c21
-rw-r--r--arch/ppc64/kernel/prom.c9
-rw-r--r--arch/ppc64/kernel/prom_init.c3
-rw-r--r--arch/ppc64/kernel/vdso.c5
95 files changed, 1909 insertions, 2003 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1493c7896fe3..ed31062029f7 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -599,6 +599,10 @@ config HAVE_ARCH_EARLY_PFN_TO_NID
599 def_bool y 599 def_bool y
600 depends on NEED_MULTIPLE_NODES 600 depends on NEED_MULTIPLE_NODES
601 601
602config ARCH_MEMORY_PROBE
603 def_bool y
604 depends on MEMORY_HOTPLUG
605
602# Some NUMA nodes have memory ranges that span 606# Some NUMA nodes have memory ranges that span
603# other nodes. Even though a pfn is valid and 607# other nodes. Even though a pfn is valid and
604# between a node's start and end pfns, it may not 608# between a node's start and end pfns, it may not
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index b3ae2993efb8..c04bbd320594 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -4,6 +4,7 @@
4 4
5ifeq ($(CONFIG_PPC64),y) 5ifeq ($(CONFIG_PPC64),y)
6EXTRA_CFLAGS += -mno-minimal-toc 6EXTRA_CFLAGS += -mno-minimal-toc
7CFLAGS_ioctl32.o += -Ifs/
7endif 8endif
8ifeq ($(CONFIG_PPC32),y) 9ifeq ($(CONFIG_PPC32),y)
9CFLAGS_prom_init.o += -fPIC 10CFLAGS_prom_init.o += -fPIC
@@ -11,15 +12,21 @@ CFLAGS_btext.o += -fPIC
11endif 12endif
12 13
13obj-y := semaphore.o cputable.o ptrace.o syscalls.o \ 14obj-y := semaphore.o cputable.o ptrace.o syscalls.o \
14 signal_32.o pmc.o 15 irq.o signal_32.o pmc.o
15obj-$(CONFIG_PPC64) += setup_64.o binfmt_elf32.o sys_ppc32.o \ 16obj-$(CONFIG_PPC64) += setup_64.o binfmt_elf32.o sys_ppc32.o \
16 signal_64.o ptrace32.o systbl.o 17 signal_64.o ptrace32.o systbl.o \
18 paca.o ioctl32.o cpu_setup_power4.o \
19 firmware.o sysfs.o
17obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o 20obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o
18obj-$(CONFIG_POWER4) += idle_power4.o 21obj-$(CONFIG_POWER4) += idle_power4.o
19obj-$(CONFIG_PPC_OF) += of_device.o 22obj-$(CONFIG_PPC_OF) += of_device.o
20obj-$(CONFIG_PPC_RTAS) += rtas.o 23procfs-$(CONFIG_PPC64) := proc_ppc64.o
24obj-$(CONFIG_PROC_FS) += $(procfs-y)
25rtaspci-$(CONFIG_PPC64) := rtas_pci.o
26obj-$(CONFIG_PPC_RTAS) += rtas.o $(rtaspci-y)
21obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o 27obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o
22obj-$(CONFIG_RTAS_PROC) += rtas-proc.o 28obj-$(CONFIG_RTAS_PROC) += rtas-proc.o
29obj-$(CONFIG_LPARCFG) += lparcfg.o
23obj-$(CONFIG_IBMVIO) += vio.o 30obj-$(CONFIG_IBMVIO) += vio.o
24obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o 31obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o
25 32
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index b75757251994..8793102711a8 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -106,7 +106,6 @@ int main(void)
106 DEFINE(ICACHEL1LINESIZE, offsetof(struct ppc64_caches, iline_size)); 106 DEFINE(ICACHEL1LINESIZE, offsetof(struct ppc64_caches, iline_size));
107 DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size)); 107 DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size));
108 DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page)); 108 DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page));
109 DEFINE(PLATFORM, offsetof(struct systemcfg, platform));
110 DEFINE(PLATFORM_LPAR, PLATFORM_LPAR); 109 DEFINE(PLATFORM_LPAR, PLATFORM_LPAR);
111 110
112 /* paca */ 111 /* paca */
diff --git a/arch/ppc64/kernel/cpu_setup_power4.S b/arch/powerpc/kernel/cpu_setup_power4.S
index 1fb673c511ff..cca942fe6115 100644
--- a/arch/ppc64/kernel/cpu_setup_power4.S
+++ b/arch/powerpc/kernel/cpu_setup_power4.S
@@ -114,11 +114,11 @@ _GLOBAL(__setup_cpu_ppc970)
114 114
115 .data 115 .data
116 .balign L1_CACHE_BYTES,0 116 .balign L1_CACHE_BYTES,0
117cpu_state_storage: 117cpu_state_storage:
118 .space CS_SIZE 118 .space CS_SIZE
119 .balign L1_CACHE_BYTES,0 119 .balign L1_CACHE_BYTES,0
120 .text 120 .text
121 121
122/* Called in normal context to backup CPU 0 state. This 122/* Called in normal context to backup CPU 0 state. This
123 * does not include cache settings. This function is also 123 * does not include cache settings. This function is also
124 * called for machine sleep. This does not include the MMU 124 * called for machine sleep. This does not include the MMU
@@ -151,7 +151,7 @@ _GLOBAL(__save_cpu_setup)
151 std r3,CS_HID4(r5) 151 std r3,CS_HID4(r5)
152 mfspr r3,SPRN_HID5 152 mfspr r3,SPRN_HID5
153 std r3,CS_HID5(r5) 153 std r3,CS_HID5(r5)
154 154
1552: 1552:
156 mtcr r7 156 mtcr r7
157 blr 157 blr
@@ -213,7 +213,7 @@ _GLOBAL(__restore_cpu_setup)
213 mtspr SPRN_HID1,r3 213 mtspr SPRN_HID1,r3
214 sync 214 sync
215 isync 215 isync
216 216
217 /* Restore HID4 */ 217 /* Restore HID4 */
218 ld r3,CS_HID4(r5) 218 ld r3,CS_HID4(r5)
219 sync 219 sync
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index cc4e9eb1c13f..1d85cedbbb7b 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -52,6 +52,9 @@ extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
52#define COMMON_USER (PPC_FEATURE_32 | PPC_FEATURE_HAS_FPU | \ 52#define COMMON_USER (PPC_FEATURE_32 | PPC_FEATURE_HAS_FPU | \
53 PPC_FEATURE_HAS_MMU) 53 PPC_FEATURE_HAS_MMU)
54#define COMMON_USER_PPC64 (COMMON_USER | PPC_FEATURE_64) 54#define COMMON_USER_PPC64 (COMMON_USER | PPC_FEATURE_64)
55#define COMMON_USER_POWER4 (COMMON_USER_PPC64 | PPC_FEATURE_POWER4)
56#define COMMON_USER_POWER5 (COMMON_USER_PPC64 | PPC_FEATURE_POWER5)
57#define COMMON_USER_POWER5_PLUS (COMMON_USER_PPC64 | PPC_FEATURE_POWER5_PLUS)
55 58
56 59
57/* We only set the spe features if the kernel was compiled with 60/* We only set the spe features if the kernel was compiled with
@@ -160,7 +163,7 @@ struct cpu_spec cpu_specs[] = {
160 .pvr_value = 0x00350000, 163 .pvr_value = 0x00350000,
161 .cpu_name = "POWER4 (gp)", 164 .cpu_name = "POWER4 (gp)",
162 .cpu_features = CPU_FTRS_POWER4, 165 .cpu_features = CPU_FTRS_POWER4,
163 .cpu_user_features = COMMON_USER_PPC64, 166 .cpu_user_features = COMMON_USER_POWER4,
164 .icache_bsize = 128, 167 .icache_bsize = 128,
165 .dcache_bsize = 128, 168 .dcache_bsize = 128,
166 .num_pmcs = 8, 169 .num_pmcs = 8,
@@ -175,7 +178,7 @@ struct cpu_spec cpu_specs[] = {
175 .pvr_value = 0x00380000, 178 .pvr_value = 0x00380000,
176 .cpu_name = "POWER4+ (gq)", 179 .cpu_name = "POWER4+ (gq)",
177 .cpu_features = CPU_FTRS_POWER4, 180 .cpu_features = CPU_FTRS_POWER4,
178 .cpu_user_features = COMMON_USER_PPC64, 181 .cpu_user_features = COMMON_USER_POWER4,
179 .icache_bsize = 128, 182 .icache_bsize = 128,
180 .dcache_bsize = 128, 183 .dcache_bsize = 128,
181 .num_pmcs = 8, 184 .num_pmcs = 8,
@@ -190,7 +193,7 @@ struct cpu_spec cpu_specs[] = {
190 .pvr_value = 0x00390000, 193 .pvr_value = 0x00390000,
191 .cpu_name = "PPC970", 194 .cpu_name = "PPC970",
192 .cpu_features = CPU_FTRS_PPC970, 195 .cpu_features = CPU_FTRS_PPC970,
193 .cpu_user_features = COMMON_USER_PPC64 | 196 .cpu_user_features = COMMON_USER_POWER4 |
194 PPC_FEATURE_HAS_ALTIVEC_COMP, 197 PPC_FEATURE_HAS_ALTIVEC_COMP,
195 .icache_bsize = 128, 198 .icache_bsize = 128,
196 .dcache_bsize = 128, 199 .dcache_bsize = 128,
@@ -212,7 +215,7 @@ struct cpu_spec cpu_specs[] = {
212#else 215#else
213 .cpu_features = CPU_FTRS_PPC970, 216 .cpu_features = CPU_FTRS_PPC970,
214#endif 217#endif
215 .cpu_user_features = COMMON_USER_PPC64 | 218 .cpu_user_features = COMMON_USER_POWER4 |
216 PPC_FEATURE_HAS_ALTIVEC_COMP, 219 PPC_FEATURE_HAS_ALTIVEC_COMP,
217 .icache_bsize = 128, 220 .icache_bsize = 128,
218 .dcache_bsize = 128, 221 .dcache_bsize = 128,
@@ -230,7 +233,7 @@ struct cpu_spec cpu_specs[] = {
230 .pvr_value = 0x00440000, 233 .pvr_value = 0x00440000,
231 .cpu_name = "PPC970MP", 234 .cpu_name = "PPC970MP",
232 .cpu_features = CPU_FTRS_PPC970, 235 .cpu_features = CPU_FTRS_PPC970,
233 .cpu_user_features = COMMON_USER_PPC64 | 236 .cpu_user_features = COMMON_USER_POWER4 |
234 PPC_FEATURE_HAS_ALTIVEC_COMP, 237 PPC_FEATURE_HAS_ALTIVEC_COMP,
235 .icache_bsize = 128, 238 .icache_bsize = 128,
236 .dcache_bsize = 128, 239 .dcache_bsize = 128,
@@ -245,7 +248,7 @@ struct cpu_spec cpu_specs[] = {
245 .pvr_value = 0x003a0000, 248 .pvr_value = 0x003a0000,
246 .cpu_name = "POWER5 (gr)", 249 .cpu_name = "POWER5 (gr)",
247 .cpu_features = CPU_FTRS_POWER5, 250 .cpu_features = CPU_FTRS_POWER5,
248 .cpu_user_features = COMMON_USER_PPC64, 251 .cpu_user_features = COMMON_USER_POWER5,
249 .icache_bsize = 128, 252 .icache_bsize = 128,
250 .dcache_bsize = 128, 253 .dcache_bsize = 128,
251 .num_pmcs = 6, 254 .num_pmcs = 6,
@@ -260,7 +263,7 @@ struct cpu_spec cpu_specs[] = {
260 .pvr_value = 0x003b0000, 263 .pvr_value = 0x003b0000,
261 .cpu_name = "POWER5 (gs)", 264 .cpu_name = "POWER5 (gs)",
262 .cpu_features = CPU_FTRS_POWER5, 265 .cpu_features = CPU_FTRS_POWER5,
263 .cpu_user_features = COMMON_USER_PPC64, 266 .cpu_user_features = COMMON_USER_POWER5_PLUS,
264 .icache_bsize = 128, 267 .icache_bsize = 128,
265 .dcache_bsize = 128, 268 .dcache_bsize = 128,
266 .num_pmcs = 6, 269 .num_pmcs = 6,
@@ -276,7 +279,7 @@ struct cpu_spec cpu_specs[] = {
276 .cpu_name = "Cell Broadband Engine", 279 .cpu_name = "Cell Broadband Engine",
277 .cpu_features = CPU_FTRS_CELL, 280 .cpu_features = CPU_FTRS_CELL,
278 .cpu_user_features = COMMON_USER_PPC64 | 281 .cpu_user_features = COMMON_USER_PPC64 |
279 PPC_FEATURE_HAS_ALTIVEC_COMP, 282 PPC_FEATURE_CELL | PPC_FEATURE_HAS_ALTIVEC_COMP,
280 .icache_bsize = 128, 283 .icache_bsize = 128,
281 .dcache_bsize = 128, 284 .dcache_bsize = 128,
282 .cpu_setup = __setup_cpu_be, 285 .cpu_setup = __setup_cpu_be,
diff --git a/arch/ppc64/kernel/firmware.c b/arch/powerpc/kernel/firmware.c
index d8432c0fb27d..65eae752a527 100644
--- a/arch/ppc64/kernel/firmware.c
+++ b/arch/powerpc/kernel/firmware.c
@@ -1,6 +1,4 @@
1/* 1/*
2 * arch/ppc64/kernel/firmware.c
3 *
4 * Extracted from cputable.c 2 * Extracted from cputable.c
5 * 3 *
6 * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org) 4 * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index 4d6001fa1cf2..b780b42c95fc 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -41,20 +41,20 @@ _GLOBAL(load_up_fpu)
41#ifndef CONFIG_SMP 41#ifndef CONFIG_SMP
42 LOADBASE(r3, last_task_used_math) 42 LOADBASE(r3, last_task_used_math)
43 toreal(r3) 43 toreal(r3)
44 LDL r4,OFF(last_task_used_math)(r3) 44 PPC_LL r4,OFF(last_task_used_math)(r3)
45 CMPI 0,r4,0 45 PPC_LCMPI 0,r4,0
46 beq 1f 46 beq 1f
47 toreal(r4) 47 toreal(r4)
48 addi r4,r4,THREAD /* want last_task_used_math->thread */ 48 addi r4,r4,THREAD /* want last_task_used_math->thread */
49 SAVE_32FPRS(0, r4) 49 SAVE_32FPRS(0, r4)
50 mffs fr0 50 mffs fr0
51 stfd fr0,THREAD_FPSCR(r4) 51 stfd fr0,THREAD_FPSCR(r4)
52 LDL r5,PT_REGS(r4) 52 PPC_LL r5,PT_REGS(r4)
53 toreal(r5) 53 toreal(r5)
54 LDL r4,_MSR-STACK_FRAME_OVERHEAD(r5) 54 PPC_LL r4,_MSR-STACK_FRAME_OVERHEAD(r5)
55 li r10,MSR_FP|MSR_FE0|MSR_FE1 55 li r10,MSR_FP|MSR_FE0|MSR_FE1
56 andc r4,r4,r10 /* disable FP for previous task */ 56 andc r4,r4,r10 /* disable FP for previous task */
57 STL r4,_MSR-STACK_FRAME_OVERHEAD(r5) 57 PPC_STL r4,_MSR-STACK_FRAME_OVERHEAD(r5)
581: 581:
59#endif /* CONFIG_SMP */ 59#endif /* CONFIG_SMP */
60 /* enable use of FP after return */ 60 /* enable use of FP after return */
@@ -77,7 +77,7 @@ _GLOBAL(load_up_fpu)
77#ifndef CONFIG_SMP 77#ifndef CONFIG_SMP
78 subi r4,r5,THREAD 78 subi r4,r5,THREAD
79 fromreal(r4) 79 fromreal(r4)
80 STL r4,OFF(last_task_used_math)(r3) 80 PPC_STL r4,OFF(last_task_used_math)(r3)
81#endif /* CONFIG_SMP */ 81#endif /* CONFIG_SMP */
82 /* restore registers and return */ 82 /* restore registers and return */
83 /* we haven't used ctr or xer or lr */ 83 /* we haven't used ctr or xer or lr */
@@ -97,24 +97,24 @@ _GLOBAL(giveup_fpu)
97 MTMSRD(r5) /* enable use of fpu now */ 97 MTMSRD(r5) /* enable use of fpu now */
98 SYNC_601 98 SYNC_601
99 isync 99 isync
100 CMPI 0,r3,0 100 PPC_LCMPI 0,r3,0
101 beqlr- /* if no previous owner, done */ 101 beqlr- /* if no previous owner, done */
102 addi r3,r3,THREAD /* want THREAD of task */ 102 addi r3,r3,THREAD /* want THREAD of task */
103 LDL r5,PT_REGS(r3) 103 PPC_LL r5,PT_REGS(r3)
104 CMPI 0,r5,0 104 PPC_LCMPI 0,r5,0
105 SAVE_32FPRS(0, r3) 105 SAVE_32FPRS(0, r3)
106 mffs fr0 106 mffs fr0
107 stfd fr0,THREAD_FPSCR(r3) 107 stfd fr0,THREAD_FPSCR(r3)
108 beq 1f 108 beq 1f
109 LDL r4,_MSR-STACK_FRAME_OVERHEAD(r5) 109 PPC_LL r4,_MSR-STACK_FRAME_OVERHEAD(r5)
110 li r3,MSR_FP|MSR_FE0|MSR_FE1 110 li r3,MSR_FP|MSR_FE0|MSR_FE1
111 andc r4,r4,r3 /* disable FP for previous task */ 111 andc r4,r4,r3 /* disable FP for previous task */
112 STL r4,_MSR-STACK_FRAME_OVERHEAD(r5) 112 PPC_STL r4,_MSR-STACK_FRAME_OVERHEAD(r5)
1131: 1131:
114#ifndef CONFIG_SMP 114#ifndef CONFIG_SMP
115 li r5,0 115 li r5,0
116 LOADBASE(r4,last_task_used_math) 116 LOADBASE(r4,last_task_used_math)
117 STL r5,OFF(last_task_used_math)(r4) 117 PPC_STL r5,OFF(last_task_used_math)(r4)
118#endif /* CONFIG_SMP */ 118#endif /* CONFIG_SMP */
119 blr 119 blr
120 120
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 16ab40daa738..8a8bf79ef044 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -28,7 +28,6 @@
28#include <asm/reg.h> 28#include <asm/reg.h>
29#include <asm/page.h> 29#include <asm/page.h>
30#include <asm/mmu.h> 30#include <asm/mmu.h>
31#include <asm/systemcfg.h>
32#include <asm/ppc_asm.h> 31#include <asm/ppc_asm.h>
33#include <asm/asm-offsets.h> 32#include <asm/asm-offsets.h>
34#include <asm/bug.h> 33#include <asm/bug.h>
@@ -1697,25 +1696,14 @@ _GLOBAL(pmac_secondary_start)
1697 * SPRG3 = paca virtual address 1696 * SPRG3 = paca virtual address
1698 */ 1697 */
1699_GLOBAL(__secondary_start) 1698_GLOBAL(__secondary_start)
1699 /* Set thread priority to MEDIUM */
1700 HMT_MEDIUM
1700 1701
1701 HMT_MEDIUM /* Set thread priority to MEDIUM */ 1702 /* Load TOC */
1702
1703 ld r2,PACATOC(r13) 1703 ld r2,PACATOC(r13)
1704 li r6,0 1704
1705 stb r6,PACAPROCENABLED(r13) 1705 /* Do early setup for that CPU (stab, slb, hash table pointer) */
1706 1706 bl .early_setup_secondary
1707#ifndef CONFIG_PPC_ISERIES
1708 /* Initialize the page table pointer register. */
1709 LOADADDR(r6,_SDR1)
1710 ld r6,0(r6) /* get the value of _SDR1 */
1711 mtspr SPRN_SDR1,r6 /* set the htab location */
1712#endif
1713 /* Initialize the first segment table (or SLB) entry */
1714 ld r3,PACASTABVIRT(r13) /* get addr of segment table */
1715BEGIN_FTR_SECTION
1716 bl .stab_initialize
1717END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
1718 bl .slb_initialize
1719 1707
1720 /* Initialize the kernel stack. Just a repeat for iSeries. */ 1708 /* Initialize the kernel stack. Just a repeat for iSeries. */
1721 LOADADDR(r3,current_set) 1709 LOADADDR(r3,current_set)
@@ -1724,37 +1712,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
1724 addi r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD 1712 addi r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
1725 std r1,PACAKSAVE(r13) 1713 std r1,PACAKSAVE(r13)
1726 1714
1727 ld r3,PACASTABREAL(r13) /* get raddr of segment table */ 1715 /* Clear backchain so we get nice backtraces */
1728 ori r4,r3,1 /* turn on valid bit */
1729
1730#ifdef CONFIG_PPC_ISERIES
1731 li r0,-1 /* hypervisor call */
1732 li r3,1
1733 sldi r3,r3,63 /* 0x8000000000000000 */
1734 ori r3,r3,4 /* 0x8000000000000004 */
1735 sc /* HvCall_setASR */
1736#else
1737 /* set the ASR */
1738 ld r3,systemcfg@got(r2) /* r3 = ptr to systemcfg */
1739 ld r3,0(r3)
1740 lwz r3,PLATFORM(r3) /* r3 = platform flags */
1741 andi. r3,r3,PLATFORM_LPAR /* Test if bit 0 is set (LPAR bit) */
1742 beq 98f /* branch if result is 0 */
1743 mfspr r3,SPRN_PVR
1744 srwi r3,r3,16
1745 cmpwi r3,0x37 /* SStar */
1746 beq 97f
1747 cmpwi r3,0x36 /* IStar */
1748 beq 97f
1749 cmpwi r3,0x34 /* Pulsar */
1750 bne 98f
175197: li r3,H_SET_ASR /* hcall = H_SET_ASR */
1752 HVSC /* Invoking hcall */
1753 b 99f
175498: /* !(rpa hypervisor) || !(star) */
1755 mtasr r4 /* set the stab location */
175699:
1757#endif
1758 li r7,0 1716 li r7,0
1759 mtlr r7 1717 mtlr r7
1760 1718
@@ -1777,6 +1735,7 @@ _GLOBAL(start_secondary_prolog)
1777 li r3,0 1735 li r3,0
1778 std r3,0(r1) /* Zero the stack frame pointer */ 1736 std r3,0(r1) /* Zero the stack frame pointer */
1779 bl .start_secondary 1737 bl .start_secondary
1738 b .
1780#endif 1739#endif
1781 1740
1782/* 1741/*
@@ -1896,40 +1855,6 @@ _STATIC(start_here_multiplatform)
1896 mr r3,r31 1855 mr r3,r31
1897 bl .early_setup 1856 bl .early_setup
1898 1857
1899 /* set the ASR */
1900 ld r3,PACASTABREAL(r13)
1901 ori r4,r3,1 /* turn on valid bit */
1902 ld r3,systemcfg@got(r2) /* r3 = ptr to systemcfg */
1903 ld r3,0(r3)
1904 lwz r3,PLATFORM(r3) /* r3 = platform flags */
1905 andi. r3,r3,PLATFORM_LPAR /* Test if bit 0 is set (LPAR bit) */
1906 beq 98f /* branch if result is 0 */
1907 mfspr r3,SPRN_PVR
1908 srwi r3,r3,16
1909 cmpwi r3,0x37 /* SStar */
1910 beq 97f
1911 cmpwi r3,0x36 /* IStar */
1912 beq 97f
1913 cmpwi r3,0x34 /* Pulsar */
1914 bne 98f
191597: li r3,H_SET_ASR /* hcall = H_SET_ASR */
1916 HVSC /* Invoking hcall */
1917 b 99f
191898: /* !(rpa hypervisor) || !(star) */
1919 mtasr r4 /* set the stab location */
192099:
1921 /* Set SDR1 (hash table pointer) */
1922 ld r3,systemcfg@got(r2) /* r3 = ptr to systemcfg */
1923 ld r3,0(r3)
1924 lwz r3,PLATFORM(r3) /* r3 = platform flags */
1925 /* Test if bit 0 is set (LPAR bit) */
1926 andi. r3,r3,PLATFORM_LPAR
1927 bne 98f /* branch if result is !0 */
1928 LOADADDR(r6,_SDR1) /* Only if NOT LPAR */
1929 add r6,r6,r26
1930 ld r6,0(r6) /* get the value of _SDR1 */
1931 mtspr SPRN_SDR1,r6 /* set the htab location */
193298:
1933 LOADADDR(r3,.start_here_common) 1858 LOADADDR(r3,.start_here_common)
1934 SET_REG_TO_CONST(r4, MSR_KERNEL) 1859 SET_REG_TO_CONST(r4, MSR_KERNEL)
1935 mtspr SPRN_SRR0,r3 1860 mtspr SPRN_SRR0,r3
diff --git a/arch/ppc64/kernel/ioctl32.c b/arch/powerpc/kernel/ioctl32.c
index ba4a899045c2..3fa6a93adbd0 100644
--- a/arch/ppc64/kernel/ioctl32.c
+++ b/arch/powerpc/kernel/ioctl32.c
@@ -1,6 +1,6 @@
1/* 1/*
2 * ioctl32.c: Conversion between 32bit and 64bit native ioctls. 2 * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
3 * 3 *
4 * Based on sparc64 ioctl32.c by: 4 * Based on sparc64 ioctl32.c by:
5 * 5 *
6 * Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com) 6 * Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
diff --git a/arch/ppc64/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 87474584033f..4b7940693f3d 100644
--- a/arch/ppc64/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -5,12 +5,12 @@
5 * Copyright (C) 1992 Linus Torvalds 5 * Copyright (C) 1992 Linus Torvalds
6 * Adapted from arch/i386 by Gary Thomas 6 * Adapted from arch/i386 by Gary Thomas
7 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) 7 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
8 * Updated and modified by Cort Dougan (cort@cs.nmt.edu) 8 * Updated and modified by Cort Dougan <cort@fsmlabs.com>
9 * Copyright (C) 1996 Cort Dougan 9 * Copyright (C) 1996-2001 Cort Dougan
10 * Adapted for Power Macintosh by Paul Mackerras 10 * Adapted for Power Macintosh by Paul Mackerras
11 * Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au) 11 * Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au)
12 * Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk). 12 * Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
13 * 13 *
14 * This program is free software; you can redistribute it and/or 14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License 15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version 16 * as published by the Free Software Foundation; either version
@@ -21,6 +21,14 @@
21 * instead of just grabbing them. Thus setups with different IRQ numbers 21 * instead of just grabbing them. Thus setups with different IRQ numbers
22 * shouldn't result in any weird surprises, and installing new handlers 22 * shouldn't result in any weird surprises, and installing new handlers
23 * should be easier. 23 * should be easier.
24 *
25 * The MPC8xx has an interrupt mask in the SIU. If a bit is set, the
26 * interrupt is _enabled_. As expected, IRQ0 is bit 0 in the 32-bit
27 * mask register (of which only 16 are defined), hence the weird shifting
28 * and complement of the cached_irq_mask. I want to be able to stuff
29 * this right into the SIU SMASK register.
30 * Many of the prep/chrp functions are conditional compiled on CONFIG_8xx
31 * to reduce code space and undefined function references.
24 */ 32 */
25 33
26#include <linux/errno.h> 34#include <linux/errno.h>
@@ -29,6 +37,7 @@
29#include <linux/kernel_stat.h> 37#include <linux/kernel_stat.h>
30#include <linux/signal.h> 38#include <linux/signal.h>
31#include <linux/sched.h> 39#include <linux/sched.h>
40#include <linux/ptrace.h>
32#include <linux/ioport.h> 41#include <linux/ioport.h>
33#include <linux/interrupt.h> 42#include <linux/interrupt.h>
34#include <linux/timex.h> 43#include <linux/timex.h>
@@ -40,9 +49,13 @@
40#include <linux/irq.h> 49#include <linux/irq.h>
41#include <linux/proc_fs.h> 50#include <linux/proc_fs.h>
42#include <linux/random.h> 51#include <linux/random.h>
43#include <linux/kallsyms.h> 52#include <linux/seq_file.h>
53#include <linux/cpumask.h>
44#include <linux/profile.h> 54#include <linux/profile.h>
45#include <linux/bitops.h> 55#include <linux/bitops.h>
56#ifdef CONFIG_PPC64
57#include <linux/kallsyms.h>
58#endif
46 59
47#include <asm/uaccess.h> 60#include <asm/uaccess.h>
48#include <asm/system.h> 61#include <asm/system.h>
@@ -52,35 +65,54 @@
52#include <asm/cache.h> 65#include <asm/cache.h>
53#include <asm/prom.h> 66#include <asm/prom.h>
54#include <asm/ptrace.h> 67#include <asm/ptrace.h>
55#include <asm/iseries/it_lp_queue.h>
56#include <asm/machdep.h> 68#include <asm/machdep.h>
69#ifdef CONFIG_PPC64
70#include <asm/iseries/it_lp_queue.h>
57#include <asm/paca.h> 71#include <asm/paca.h>
72#endif
58 73
59#ifdef CONFIG_SMP 74static int ppc_spurious_interrupts;
60extern void iSeries_smp_message_recv( struct pt_regs * ); 75
76#if defined(CONFIG_PPC_ISERIES) && defined(CONFIG_SMP)
77extern void iSeries_smp_message_recv(struct pt_regs *);
78#endif
79
80#ifdef CONFIG_PPC32
81#define NR_MASK_WORDS ((NR_IRQS + 31) / 32)
82
83unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
84atomic_t ppc_n_lost_interrupts;
85
86#ifdef CONFIG_TAU_INT
87extern int tau_initialized;
88extern int tau_interrupts(int);
89#endif
90
91#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_MERGE)
92extern atomic_t ipi_recv;
93extern atomic_t ipi_sent;
61#endif 94#endif
95#endif /* CONFIG_PPC32 */
62 96
63extern irq_desc_t irq_desc[NR_IRQS]; 97#ifdef CONFIG_PPC64
64EXPORT_SYMBOL(irq_desc); 98EXPORT_SYMBOL(irq_desc);
65 99
66int distribute_irqs = 1; 100int distribute_irqs = 1;
67int __irq_offset_value; 101int __irq_offset_value;
68int ppc_spurious_interrupts;
69u64 ppc64_interrupt_controller; 102u64 ppc64_interrupt_controller;
103#endif /* CONFIG_PPC64 */
70 104
71int show_interrupts(struct seq_file *p, void *v) 105int show_interrupts(struct seq_file *p, void *v)
72{ 106{
73 int i = *(loff_t *) v, j; 107 int i = *(loff_t *)v, j;
74 struct irqaction * action; 108 struct irqaction *action;
75 irq_desc_t *desc; 109 irq_desc_t *desc;
76 unsigned long flags; 110 unsigned long flags;
77 111
78 if (i == 0) { 112 if (i == 0) {
79 seq_printf(p, " "); 113 seq_puts(p, " ");
80 for (j=0; j<NR_CPUS; j++) { 114 for_each_online_cpu(j)
81 if (cpu_online(j)) 115 seq_printf(p, "CPU%d ", j);
82 seq_printf(p, "CPU%d ",j);
83 }
84 seq_putc(p, '\n'); 116 seq_putc(p, '\n');
85 } 117 }
86 118
@@ -92,26 +124,41 @@ int show_interrupts(struct seq_file *p, void *v)
92 goto skip; 124 goto skip;
93 seq_printf(p, "%3d: ", i); 125 seq_printf(p, "%3d: ", i);
94#ifdef CONFIG_SMP 126#ifdef CONFIG_SMP
95 for (j = 0; j < NR_CPUS; j++) { 127 for_each_online_cpu(j)
96 if (cpu_online(j)) 128 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
97 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
98 }
99#else 129#else
100 seq_printf(p, "%10u ", kstat_irqs(i)); 130 seq_printf(p, "%10u ", kstat_irqs(i));
101#endif /* CONFIG_SMP */ 131#endif /* CONFIG_SMP */
102 if (desc->handler) 132 if (desc->handler)
103 seq_printf(p, " %s ", desc->handler->typename ); 133 seq_printf(p, " %s ", desc->handler->typename);
104 else 134 else
105 seq_printf(p, " None "); 135 seq_puts(p, " None ");
106 seq_printf(p, "%s", (desc->status & IRQ_LEVEL) ? "Level " : "Edge "); 136 seq_printf(p, "%s", (desc->status & IRQ_LEVEL) ? "Level " : "Edge ");
107 seq_printf(p, " %s",action->name); 137 seq_printf(p, " %s", action->name);
108 for (action=action->next; action; action = action->next) 138 for (action = action->next; action; action = action->next)
109 seq_printf(p, ", %s", action->name); 139 seq_printf(p, ", %s", action->name);
110 seq_putc(p, '\n'); 140 seq_putc(p, '\n');
111skip: 141skip:
112 spin_unlock_irqrestore(&desc->lock, flags); 142 spin_unlock_irqrestore(&desc->lock, flags);
113 } else if (i == NR_IRQS) 143 } else if (i == NR_IRQS) {
144#ifdef CONFIG_PPC32
145#ifdef CONFIG_TAU_INT
146 if (tau_initialized){
147 seq_puts(p, "TAU: ");
148 for (j = 0; j < NR_CPUS; j++)
149 if (cpu_online(j))
150 seq_printf(p, "%10u ", tau_interrupts(j));
151 seq_puts(p, " PowerPC Thermal Assist (cpu temp)\n");
152 }
153#endif
154#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_MERGE)
155 /* should this be per processor send/receive? */
156 seq_printf(p, "IPI (recv/sent): %10u/%u\n",
157 atomic_read(&ipi_recv), atomic_read(&ipi_sent));
158#endif
159#endif /* CONFIG_PPC32 */
114 seq_printf(p, "BAD: %10u\n", ppc_spurious_interrupts); 160 seq_printf(p, "BAD: %10u\n", ppc_spurious_interrupts);
161 }
115 return 0; 162 return 0;
116} 163}
117 164
@@ -144,126 +191,6 @@ void fixup_irqs(cpumask_t map)
144} 191}
145#endif 192#endif
146 193
147extern int noirqdebug;
148
149/*
150 * Eventually, this should take an array of interrupts and an array size
151 * so it can dispatch multiple interrupts.
152 */
153void ppc_irq_dispatch_handler(struct pt_regs *regs, int irq)
154{
155 int status;
156 struct irqaction *action;
157 int cpu = smp_processor_id();
158 irq_desc_t *desc = get_irq_desc(irq);
159 irqreturn_t action_ret;
160#ifdef CONFIG_IRQSTACKS
161 struct thread_info *curtp, *irqtp;
162#endif
163
164 kstat_cpu(cpu).irqs[irq]++;
165
166 if (desc->status & IRQ_PER_CPU) {
167 /* no locking required for CPU-local interrupts: */
168 ack_irq(irq);
169 action_ret = handle_IRQ_event(irq, regs, desc->action);
170 desc->handler->end(irq);
171 return;
172 }
173
174 spin_lock(&desc->lock);
175 ack_irq(irq);
176 /*
177 REPLAY is when Linux resends an IRQ that was dropped earlier
178 WAITING is used by probe to mark irqs that are being tested
179 */
180 status = desc->status & ~(IRQ_REPLAY | IRQ_WAITING);
181 status |= IRQ_PENDING; /* we _want_ to handle it */
182
183 /*
184 * If the IRQ is disabled for whatever reason, we cannot
185 * use the action we have.
186 */
187 action = NULL;
188 if (likely(!(status & (IRQ_DISABLED | IRQ_INPROGRESS)))) {
189 action = desc->action;
190 if (!action || !action->handler) {
191 ppc_spurious_interrupts++;
192 printk(KERN_DEBUG "Unhandled interrupt %x, disabled\n", irq);
193 /* We can't call disable_irq here, it would deadlock */
194 if (!desc->depth)
195 desc->depth = 1;
196 desc->status |= IRQ_DISABLED;
197 /* This is not a real spurrious interrupt, we
198 * have to eoi it, so we jump to out
199 */
200 mask_irq(irq);
201 goto out;
202 }
203 status &= ~IRQ_PENDING; /* we commit to handling */
204 status |= IRQ_INPROGRESS; /* we are handling it */
205 }
206 desc->status = status;
207
208 /*
209 * If there is no IRQ handler or it was disabled, exit early.
210 Since we set PENDING, if another processor is handling
211 a different instance of this same irq, the other processor
212 will take care of it.
213 */
214 if (unlikely(!action))
215 goto out;
216
217 /*
218 * Edge triggered interrupts need to remember
219 * pending events.
220 * This applies to any hw interrupts that allow a second
221 * instance of the same irq to arrive while we are in do_IRQ
222 * or in the handler. But the code here only handles the _second_
223 * instance of the irq, not the third or fourth. So it is mostly
224 * useful for irq hardware that does not mask cleanly in an
225 * SMP environment.
226 */
227 for (;;) {
228 spin_unlock(&desc->lock);
229
230#ifdef CONFIG_IRQSTACKS
231 /* Switch to the irq stack to handle this */
232 curtp = current_thread_info();
233 irqtp = hardirq_ctx[smp_processor_id()];
234 if (curtp != irqtp) {
235 irqtp->task = curtp->task;
236 irqtp->flags = 0;
237 action_ret = call_handle_IRQ_event(irq, regs, action, irqtp);
238 irqtp->task = NULL;
239 if (irqtp->flags)
240 set_bits(irqtp->flags, &curtp->flags);
241 } else
242#endif
243 action_ret = handle_IRQ_event(irq, regs, action);
244
245 spin_lock(&desc->lock);
246 if (!noirqdebug)
247 note_interrupt(irq, desc, action_ret, regs);
248 if (likely(!(desc->status & IRQ_PENDING)))
249 break;
250 desc->status &= ~IRQ_PENDING;
251 }
252out:
253 desc->status &= ~IRQ_INPROGRESS;
254 /*
255 * The ->end() handler has to deal with interrupts which got
256 * disabled while the handler was running.
257 */
258 if (desc->handler) {
259 if (desc->handler->end)
260 desc->handler->end(irq);
261 else if (desc->handler->enable)
262 desc->handler->enable(irq);
263 }
264 spin_unlock(&desc->lock);
265}
266
267#ifdef CONFIG_PPC_ISERIES 194#ifdef CONFIG_PPC_ISERIES
268void do_IRQ(struct pt_regs *regs) 195void do_IRQ(struct pt_regs *regs)
269{ 196{
@@ -310,8 +237,11 @@ void do_IRQ(struct pt_regs *regs)
310void do_IRQ(struct pt_regs *regs) 237void do_IRQ(struct pt_regs *regs)
311{ 238{
312 int irq; 239 int irq;
240#ifdef CONFIG_IRQSTACKS
241 struct thread_info *curtp, *irqtp;
242#endif
313 243
314 irq_enter(); 244 irq_enter();
315 245
316#ifdef CONFIG_DEBUG_STACKOVERFLOW 246#ifdef CONFIG_DEBUG_STACKOVERFLOW
317 /* Debugging check for stack overflow: is there less than 2KB free? */ 247 /* Debugging check for stack overflow: is there less than 2KB free? */
@@ -328,20 +258,44 @@ void do_IRQ(struct pt_regs *regs)
328 } 258 }
329#endif 259#endif
330 260
261 /*
262 * Every platform is required to implement ppc_md.get_irq.
263 * This function will either return an irq number or -1 to
264 * indicate there are no more pending.
265 * The value -2 is for buggy hardware and means that this IRQ
266 * has already been handled. -- Tom
267 */
331 irq = ppc_md.get_irq(regs); 268 irq = ppc_md.get_irq(regs);
332 269
333 if (irq >= 0) 270 if (irq >= 0) {
334 ppc_irq_dispatch_handler(regs, irq); 271#ifdef CONFIG_IRQSTACKS
335 else 272 /* Switch to the irq stack to handle this */
336 /* That's not SMP safe ... but who cares ? */ 273 curtp = current_thread_info();
337 ppc_spurious_interrupts++; 274 irqtp = hardirq_ctx[smp_processor_id()];
338 275 if (curtp != irqtp) {
339 irq_exit(); 276 irqtp->task = curtp->task;
277 irqtp->flags = 0;
278 call___do_IRQ(irq, regs, irqtp);
279 irqtp->task = NULL;
280 if (irqtp->flags)
281 set_bits(irqtp->flags, &curtp->flags);
282 } else
283#endif
284 __do_IRQ(irq, regs);
285 } else
286#ifdef CONFIG_PPC32
287 if (irq != -2)
288#endif
289 /* That's not SMP safe ... but who cares ? */
290 ppc_spurious_interrupts++;
291 irq_exit();
340} 292}
293
341#endif /* CONFIG_PPC_ISERIES */ 294#endif /* CONFIG_PPC_ISERIES */
342 295
343void __init init_IRQ(void) 296void __init init_IRQ(void)
344{ 297{
298#ifdef CONFIG_PPC64
345 static int once = 0; 299 static int once = 0;
346 300
347 if (once) 301 if (once)
@@ -349,10 +303,14 @@ void __init init_IRQ(void)
349 303
350 once++; 304 once++;
351 305
306#endif
352 ppc_md.init_IRQ(); 307 ppc_md.init_IRQ();
308#ifdef CONFIG_PPC64
353 irq_ctx_init(); 309 irq_ctx_init();
310#endif
354} 311}
355 312
313#ifdef CONFIG_PPC64
356#ifndef CONFIG_PPC_ISERIES 314#ifndef CONFIG_PPC_ISERIES
357/* 315/*
358 * Virtual IRQ mapping code, used on systems with XICS interrupt controllers. 316 * Virtual IRQ mapping code, used on systems with XICS interrupt controllers.
@@ -517,3 +475,4 @@ static int __init setup_noirqdistrib(char *str)
517} 475}
518 476
519__setup("noirqdistrib", setup_noirqdistrib); 477__setup("noirqdistrib", setup_noirqdistrib);
478#endif /* CONFIG_PPC64 */
diff --git a/arch/ppc64/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 3e7b2f28ec83..5e954fae031f 100644
--- a/arch/ppc64/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -35,6 +35,7 @@
35#include <asm/time.h> 35#include <asm/time.h>
36#include <asm/iseries/it_exp_vpd_panel.h> 36#include <asm/iseries/it_exp_vpd_panel.h>
37#include <asm/prom.h> 37#include <asm/prom.h>
38#include <asm/systemcfg.h>
38 39
39#define MODULE_VERS "1.6" 40#define MODULE_VERS "1.6"
40#define MODULE_NAME "lparcfg" 41#define MODULE_NAME "lparcfg"
@@ -96,7 +97,7 @@ static unsigned long get_purr(void)
96 97
97#define lparcfg_write NULL 98#define lparcfg_write NULL
98 99
99/* 100/*
100 * Methods used to fetch LPAR data when running on an iSeries platform. 101 * Methods used to fetch LPAR data when running on an iSeries platform.
101 */ 102 */
102static int lparcfg_data(struct seq_file *m, void *v) 103static int lparcfg_data(struct seq_file *m, void *v)
@@ -168,7 +169,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
168#endif /* CONFIG_PPC_ISERIES */ 169#endif /* CONFIG_PPC_ISERIES */
169 170
170#ifdef CONFIG_PPC_PSERIES 171#ifdef CONFIG_PPC_PSERIES
171/* 172/*
172 * Methods used to fetch LPAR data when running on a pSeries platform. 173 * Methods used to fetch LPAR data when running on a pSeries platform.
173 */ 174 */
174 175
@@ -177,7 +178,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
177 * entitled_capacity,unallocated_capacity, 178 * entitled_capacity,unallocated_capacity,
178 * aggregation, resource_capability). 179 * aggregation, resource_capability).
179 * 180 *
180 * R4 = Entitled Processor Capacity Percentage. 181 * R4 = Entitled Processor Capacity Percentage.
181 * R5 = Unallocated Processor Capacity Percentage. 182 * R5 = Unallocated Processor Capacity Percentage.
182 * R6 (AABBCCDDEEFFGGHH). 183 * R6 (AABBCCDDEEFFGGHH).
183 * XXXX - reserved (0) 184 * XXXX - reserved (0)
@@ -190,7 +191,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
190 * XX - variable processor Capacity Weight 191 * XX - variable processor Capacity Weight
191 * XX - Unallocated Variable Processor Capacity Weight. 192 * XX - Unallocated Variable Processor Capacity Weight.
192 * XXXX - Active processors in Physical Processor Pool. 193 * XXXX - Active processors in Physical Processor Pool.
193 * XXXX - Processors active on platform. 194 * XXXX - Processors active on platform.
194 */ 195 */
195static unsigned int h_get_ppp(unsigned long *entitled, 196static unsigned int h_get_ppp(unsigned long *entitled,
196 unsigned long *unallocated, 197 unsigned long *unallocated,
@@ -273,7 +274,7 @@ static void parse_system_parameter_string(struct seq_file *m)
273 if (!workbuffer) { 274 if (!workbuffer) {
274 printk(KERN_ERR "%s %s kmalloc failure at line %d \n", 275 printk(KERN_ERR "%s %s kmalloc failure at line %d \n",
275 __FILE__, __FUNCTION__, __LINE__); 276 __FILE__, __FUNCTION__, __LINE__);
276 kfree(local_buffer); 277 kfree(local_buffer);
277 return; 278 return;
278 } 279 }
279#ifdef LPARCFG_DEBUG 280#ifdef LPARCFG_DEBUG
@@ -371,7 +372,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
371 lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity", NULL); 372 lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity", NULL);
372 373
373 if (lrdrp == NULL) { 374 if (lrdrp == NULL) {
374 partition_potential_processors = systemcfg->processorCount; 375 partition_potential_processors = _systemcfg->processorCount;
375 } else { 376 } else {
376 partition_potential_processors = *(lrdrp + 4); 377 partition_potential_processors = *(lrdrp + 4);
377 } 378 }
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 3bedb532aed9..f6d84a75ed26 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -519,7 +519,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
519 * 519 *
520 * flush_icache_range(unsigned long start, unsigned long stop) 520 * flush_icache_range(unsigned long start, unsigned long stop)
521 */ 521 */
522_GLOBAL(flush_icache_range) 522_GLOBAL(__flush_icache_range)
523BEGIN_FTR_SECTION 523BEGIN_FTR_SECTION
524 blr /* for 601, do nothing */ 524 blr /* for 601, do nothing */
525END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE) 525END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
@@ -607,27 +607,6 @@ _GLOBAL(invalidate_dcache_range)
607 sync /* wait for dcbi's to get to ram */ 607 sync /* wait for dcbi's to get to ram */
608 blr 608 blr
609 609
610#ifdef CONFIG_NOT_COHERENT_CACHE
611/*
612 * 40x cores have 8K or 16K dcache and 32 byte line size.
613 * 44x has a 32K dcache and 32 byte line size.
614 * 8xx has 1, 2, 4, 8K variants.
615 * For now, cover the worst case of the 44x.
616 * Must be called with external interrupts disabled.
617 */
618#define CACHE_NWAYS 64
619#define CACHE_NLINES 16
620
621_GLOBAL(flush_dcache_all)
622 li r4, (2 * CACHE_NWAYS * CACHE_NLINES)
623 mtctr r4
624 lis r5, KERNELBASE@h
6251: lwz r3, 0(r5) /* Load one word from every line */
626 addi r5, r5, L1_CACHE_BYTES
627 bdnz 1b
628 blr
629#endif /* CONFIG_NOT_COHERENT_CACHE */
630
631/* 610/*
632 * Flush a particular page from the data cache to RAM. 611 * Flush a particular page from the data cache to RAM.
633 * Note: this is necessary because the instruction cache does *not* 612 * Note: this is necessary because the instruction cache does *not*
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index ae1433da09b2..ae48a002f81a 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -89,12 +89,12 @@ _GLOBAL(call_do_softirq)
89 mtlr r0 89 mtlr r0
90 blr 90 blr
91 91
92_GLOBAL(call_handle_IRQ_event) 92_GLOBAL(call___do_IRQ)
93 mflr r0 93 mflr r0
94 std r0,16(r1) 94 std r0,16(r1)
95 stdu r1,THREAD_SIZE-112(r6) 95 stdu r1,THREAD_SIZE-112(r5)
96 mr r1,r6 96 mr r1,r5
97 bl .handle_IRQ_event 97 bl .__do_IRQ
98 ld r1,0(r1) 98 ld r1,0(r1)
99 ld r0,16(r1) 99 ld r0,16(r1)
100 mtlr r0 100 mtlr r0
diff --git a/arch/ppc64/kernel/pacaData.c b/arch/powerpc/kernel/paca.c
index 3133c72b28ec..3cf2517c5f91 100644
--- a/arch/ppc64/kernel/pacaData.c
+++ b/arch/powerpc/kernel/paca.c
@@ -15,7 +15,7 @@
15#include <asm/processor.h> 15#include <asm/processor.h>
16#include <asm/ptrace.h> 16#include <asm/ptrace.h>
17#include <asm/page.h> 17#include <asm/page.h>
18 18#include <asm/systemcfg.h>
19#include <asm/lppaca.h> 19#include <asm/lppaca.h>
20#include <asm/iseries/it_lp_queue.h> 20#include <asm/iseries/it_lp_queue.h>
21#include <asm/paca.h> 21#include <asm/paca.h>
@@ -24,15 +24,14 @@ static union {
24 struct systemcfg data; 24 struct systemcfg data;
25 u8 page[PAGE_SIZE]; 25 u8 page[PAGE_SIZE];
26} systemcfg_store __attribute__((__section__(".data.page.aligned"))); 26} systemcfg_store __attribute__((__section__(".data.page.aligned")));
27struct systemcfg *systemcfg = &systemcfg_store.data; 27struct systemcfg *_systemcfg = &systemcfg_store.data;
28EXPORT_SYMBOL(systemcfg);
29 28
30 29
31/* This symbol is provided by the linker - let it fill in the paca 30/* This symbol is provided by the linker - let it fill in the paca
32 * field correctly */ 31 * field correctly */
33extern unsigned long __toc_start; 32extern unsigned long __toc_start;
34 33
35/* The Paca is an array with one entry per processor. Each contains an 34/* The Paca is an array with one entry per processor. Each contains an
36 * lppaca, which contains the information shared between the 35 * lppaca, which contains the information shared between the
37 * hypervisor and Linux. Each also contains an ItLpRegSave area which 36 * hypervisor and Linux. Each also contains an ItLpRegSave area which
38 * is used by the hypervisor to save registers. 37 * is used by the hypervisor to save registers.
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 47d6f7e2ea9f..5dcf4ba05ee8 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -44,6 +44,7 @@
44#include <asm/cputable.h> 44#include <asm/cputable.h>
45#include <asm/btext.h> 45#include <asm/btext.h>
46#include <asm/div64.h> 46#include <asm/div64.h>
47#include <asm/signal.h>
47 48
48#ifdef CONFIG_8xx 49#ifdef CONFIG_8xx
49#include <asm/commproc.h> 50#include <asm/commproc.h>
@@ -56,7 +57,6 @@ extern void machine_check_exception(struct pt_regs *regs);
56extern void alignment_exception(struct pt_regs *regs); 57extern void alignment_exception(struct pt_regs *regs);
57extern void program_check_exception(struct pt_regs *regs); 58extern void program_check_exception(struct pt_regs *regs);
58extern void single_step_exception(struct pt_regs *regs); 59extern void single_step_exception(struct pt_regs *regs);
59extern int do_signal(sigset_t *, struct pt_regs *);
60extern int pmac_newworld; 60extern int pmac_newworld;
61extern int sys_sigreturn(struct pt_regs *regs); 61extern int sys_sigreturn(struct pt_regs *regs);
62 62
@@ -188,9 +188,6 @@ EXPORT_SYMBOL(adb_try_handler_change);
188EXPORT_SYMBOL(cuda_request); 188EXPORT_SYMBOL(cuda_request);
189EXPORT_SYMBOL(cuda_poll); 189EXPORT_SYMBOL(cuda_poll);
190#endif /* CONFIG_ADB_CUDA */ 190#endif /* CONFIG_ADB_CUDA */
191#if defined(CONFIG_PPC_MULTIPLATFORM) && defined(CONFIG_PPC32)
192EXPORT_SYMBOL(_machine);
193#endif
194#ifdef CONFIG_PPC_PMAC 191#ifdef CONFIG_PPC_PMAC
195EXPORT_SYMBOL(sys_ctrler); 192EXPORT_SYMBOL(sys_ctrler);
196#endif 193#endif
diff --git a/arch/ppc64/kernel/proc_ppc64.c b/arch/powerpc/kernel/proc_ppc64.c
index 24e955ee9487..a1c19502fe8b 100644
--- a/arch/ppc64/kernel/proc_ppc64.c
+++ b/arch/powerpc/kernel/proc_ppc64.c
@@ -1,18 +1,16 @@
1/* 1/*
2 * arch/ppc64/kernel/proc_ppc64.c
3 *
4 * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen IBM Corporation 2 * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen IBM Corporation
5 * 3 *
6 * This program is free software; you can redistribute it and/or modify 4 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by 5 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or 6 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version. 7 * (at your option) any later version.
10 * 8 *
11 * This program is distributed in the hope that it will be useful, 9 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details. 12 * GNU General Public License for more details.
15 * 13 *
16 * You should have received a copy of the GNU General Public License 14 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software 15 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
@@ -53,7 +51,7 @@ static int __init proc_ppc64_create(void)
53 if (!root) 51 if (!root)
54 return 1; 52 return 1;
55 53
56 if (!(systemcfg->platform & (PLATFORM_PSERIES | PLATFORM_CELL))) 54 if (!(platform_is_pseries() || _machine == PLATFORM_CELL))
57 return 0; 55 return 0;
58 56
59 if (!proc_mkdir("rtas", root)) 57 if (!proc_mkdir("rtas", root))
@@ -74,7 +72,7 @@ static int __init proc_ppc64_init(void)
74 if (!pde) 72 if (!pde)
75 return 1; 73 return 1;
76 pde->nlink = 1; 74 pde->nlink = 1;
77 pde->data = systemcfg; 75 pde->data = _systemcfg;
78 pde->size = PAGE_SIZE; 76 pde->size = PAGE_SIZE;
79 pde->proc_fops = &page_map_fops; 77 pde->proc_fops = &page_map_fops;
80 78
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index f645adb57534..6a5b468edb4d 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -48,9 +48,6 @@
48#include <asm/machdep.h> 48#include <asm/machdep.h>
49#include <asm/pSeries_reconfig.h> 49#include <asm/pSeries_reconfig.h>
50#include <asm/pci-bridge.h> 50#include <asm/pci-bridge.h>
51#ifdef CONFIG_PPC64
52#include <asm/systemcfg.h>
53#endif
54 51
55#ifdef DEBUG 52#ifdef DEBUG
56#define DBG(fmt...) printk(KERN_ERR fmt) 53#define DBG(fmt...) printk(KERN_ERR fmt)
@@ -74,10 +71,6 @@ struct isa_reg_property {
74typedef int interpret_func(struct device_node *, unsigned long *, 71typedef int interpret_func(struct device_node *, unsigned long *,
75 int, int, int); 72 int, int, int);
76 73
77extern struct rtas_t rtas;
78extern struct lmb lmb;
79extern unsigned long klimit;
80
81static int __initdata dt_root_addr_cells; 74static int __initdata dt_root_addr_cells;
82static int __initdata dt_root_size_cells; 75static int __initdata dt_root_size_cells;
83 76
@@ -391,7 +384,7 @@ static int __devinit finish_node_interrupts(struct device_node *np,
391 384
392#ifdef CONFIG_PPC64 385#ifdef CONFIG_PPC64
393 /* We offset irq numbers for the u3 MPIC by 128 in PowerMac */ 386 /* We offset irq numbers for the u3 MPIC by 128 in PowerMac */
394 if (systemcfg->platform == PLATFORM_POWERMAC && ic && ic->parent) { 387 if (_machine == PLATFORM_POWERMAC && ic && ic->parent) {
395 char *name = get_property(ic->parent, "name", NULL); 388 char *name = get_property(ic->parent, "name", NULL);
396 if (name && !strcmp(name, "u3")) 389 if (name && !strcmp(name, "u3"))
397 np->intrs[intrcount].line += 128; 390 np->intrs[intrcount].line += 128;
@@ -1087,9 +1080,9 @@ void __init unflatten_device_tree(void)
1087static int __init early_init_dt_scan_cpus(unsigned long node, 1080static int __init early_init_dt_scan_cpus(unsigned long node,
1088 const char *uname, int depth, void *data) 1081 const char *uname, int depth, void *data)
1089{ 1082{
1090 char *type = of_get_flat_dt_prop(node, "device_type", NULL);
1091 u32 *prop; 1083 u32 *prop;
1092 unsigned long size = 0; 1084 unsigned long size;
1085 char *type = of_get_flat_dt_prop(node, "device_type", &size);
1093 1086
1094 /* We are scanning "cpu" nodes only */ 1087 /* We are scanning "cpu" nodes only */
1095 if (type == NULL || strcmp(type, "cpu") != 0) 1088 if (type == NULL || strcmp(type, "cpu") != 0)
@@ -1115,7 +1108,7 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
1115 1108
1116#ifdef CONFIG_ALTIVEC 1109#ifdef CONFIG_ALTIVEC
1117 /* Check if we have a VMX and eventually update CPU features */ 1110 /* Check if we have a VMX and eventually update CPU features */
1118 prop = (u32 *)of_get_flat_dt_prop(node, "ibm,vmx", &size); 1111 prop = (u32 *)of_get_flat_dt_prop(node, "ibm,vmx", NULL);
1119 if (prop && (*prop) > 0) { 1112 if (prop && (*prop) > 0) {
1120 cur_cpu_spec->cpu_features |= CPU_FTR_ALTIVEC; 1113 cur_cpu_spec->cpu_features |= CPU_FTR_ALTIVEC;
1121 cur_cpu_spec->cpu_user_features |= PPC_FEATURE_HAS_ALTIVEC; 1114 cur_cpu_spec->cpu_user_features |= PPC_FEATURE_HAS_ALTIVEC;
@@ -1161,13 +1154,9 @@ static int __init early_init_dt_scan_chosen(unsigned long node,
1161 prop = (u32 *)of_get_flat_dt_prop(node, "linux,platform", NULL); 1154 prop = (u32 *)of_get_flat_dt_prop(node, "linux,platform", NULL);
1162 if (prop == NULL) 1155 if (prop == NULL)
1163 return 0; 1156 return 0;
1164#ifdef CONFIG_PPC64
1165 systemcfg->platform = *prop;
1166#else
1167#ifdef CONFIG_PPC_MULTIPLATFORM 1157#ifdef CONFIG_PPC_MULTIPLATFORM
1168 _machine = *prop; 1158 _machine = *prop;
1169#endif 1159#endif
1170#endif
1171 1160
1172#ifdef CONFIG_PPC64 1161#ifdef CONFIG_PPC64
1173 /* check if iommu is forced on or off */ 1162 /* check if iommu is forced on or off */
@@ -1264,7 +1253,14 @@ static int __init early_init_dt_scan_memory(unsigned long node,
1264 unsigned long l; 1253 unsigned long l;
1265 1254
1266 /* We are scanning "memory" nodes only */ 1255 /* We are scanning "memory" nodes only */
1267 if (type == NULL || strcmp(type, "memory") != 0) 1256 if (type == NULL) {
1257 /*
1258 * The longtrail doesn't have a device_type on the
1259 * /memory node, so look for the node called /memory@0.
1260 */
1261 if (depth != 1 || strcmp(uname, "memory@0") != 0)
1262 return 0;
1263 } else if (strcmp(type, "memory") != 0)
1268 return 0; 1264 return 0;
1269 1265
1270 reg = (cell_t *)of_get_flat_dt_prop(node, "reg", &l); 1266 reg = (cell_t *)of_get_flat_dt_prop(node, "reg", &l);
@@ -1339,9 +1335,6 @@ void __init early_init_devtree(void *params)
1339 of_scan_flat_dt(early_init_dt_scan_memory, NULL); 1335 of_scan_flat_dt(early_init_dt_scan_memory, NULL);
1340 lmb_enforce_memory_limit(memory_limit); 1336 lmb_enforce_memory_limit(memory_limit);
1341 lmb_analyze(); 1337 lmb_analyze();
1342#ifdef CONFIG_PPC64
1343 systemcfg->physicalMemorySize = lmb_phys_mem_size();
1344#endif
1345 lmb_reserve(0, __pa(klimit)); 1338 lmb_reserve(0, __pa(klimit));
1346 1339
1347 DBG("Phys. mem: %lx\n", lmb_phys_mem_size()); 1340 DBG("Phys. mem: %lx\n", lmb_phys_mem_size());
@@ -1908,7 +1901,7 @@ static int of_finish_dynamic_node(struct device_node *node,
1908 /* We don't support that function on PowerMac, at least 1901 /* We don't support that function on PowerMac, at least
1909 * not yet 1902 * not yet
1910 */ 1903 */
1911 if (systemcfg->platform == PLATFORM_POWERMAC) 1904 if (_machine == PLATFORM_POWERMAC)
1912 return -ENODEV; 1905 return -ENODEV;
1913 1906
1914 /* fix up new node's linux_phandle field */ 1907 /* fix up new node's linux_phandle field */
@@ -1992,9 +1985,11 @@ int prom_add_property(struct device_node* np, struct property* prop)
1992 *next = prop; 1985 *next = prop;
1993 write_unlock(&devtree_lock); 1986 write_unlock(&devtree_lock);
1994 1987
1988#ifdef CONFIG_PROC_DEVICETREE
1995 /* try to add to proc as well if it was initialized */ 1989 /* try to add to proc as well if it was initialized */
1996 if (np->pde) 1990 if (np->pde)
1997 proc_device_tree_add_prop(np->pde, prop); 1991 proc_device_tree_add_prop(np->pde, prop);
1992#endif /* CONFIG_PROC_DEVICETREE */
1998 1993
1999 return 0; 1994 return 0;
2000} 1995}
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 6dc33d19fc2a..4ce0105c308e 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -94,11 +94,17 @@ extern const struct linux_logo logo_linux_clut224;
94#ifdef CONFIG_PPC64 94#ifdef CONFIG_PPC64
95#define RELOC(x) (*PTRRELOC(&(x))) 95#define RELOC(x) (*PTRRELOC(&(x)))
96#define ADDR(x) (u32) add_reloc_offset((unsigned long)(x)) 96#define ADDR(x) (u32) add_reloc_offset((unsigned long)(x))
97#define OF_WORKAROUNDS 0
97#else 98#else
98#define RELOC(x) (x) 99#define RELOC(x) (x)
99#define ADDR(x) (u32) (x) 100#define ADDR(x) (u32) (x)
101#define OF_WORKAROUNDS of_workarounds
102int of_workarounds;
100#endif 103#endif
101 104
105#define OF_WA_CLAIM 1 /* do phys/virt claim separately, then map */
106#define OF_WA_LONGTRAIL 2 /* work around longtrail bugs */
107
102#define PROM_BUG() do { \ 108#define PROM_BUG() do { \
103 prom_printf("kernel BUG at %s line 0x%x!\n", \ 109 prom_printf("kernel BUG at %s line 0x%x!\n", \
104 RELOC(__FILE__), __LINE__); \ 110 RELOC(__FILE__), __LINE__); \
@@ -111,11 +117,6 @@ extern const struct linux_logo logo_linux_clut224;
111#define prom_debug(x...) 117#define prom_debug(x...)
112#endif 118#endif
113 119
114#ifdef CONFIG_PPC32
115#define PLATFORM_POWERMAC _MACH_Pmac
116#define PLATFORM_CHRP _MACH_chrp
117#endif
118
119 120
120typedef u32 prom_arg_t; 121typedef u32 prom_arg_t;
121 122
@@ -128,10 +129,11 @@ struct prom_args {
128 129
129struct prom_t { 130struct prom_t {
130 ihandle root; 131 ihandle root;
131 ihandle chosen; 132 phandle chosen;
132 int cpu; 133 int cpu;
133 ihandle stdout; 134 ihandle stdout;
134 ihandle mmumap; 135 ihandle mmumap;
136 ihandle memory;
135}; 137};
136 138
137struct mem_map_entry { 139struct mem_map_entry {
@@ -360,16 +362,36 @@ static void __init prom_printf(const char *format, ...)
360static unsigned int __init prom_claim(unsigned long virt, unsigned long size, 362static unsigned int __init prom_claim(unsigned long virt, unsigned long size,
361 unsigned long align) 363 unsigned long align)
362{ 364{
363 int ret;
364 struct prom_t *_prom = &RELOC(prom); 365 struct prom_t *_prom = &RELOC(prom);
365 366
366 ret = call_prom("claim", 3, 1, (prom_arg_t)virt, (prom_arg_t)size, 367 if (align == 0 && (OF_WORKAROUNDS & OF_WA_CLAIM)) {
367 (prom_arg_t)align); 368 /*
368 if (ret != -1 && _prom->mmumap != 0) 369 * Old OF requires we claim physical and virtual separately
369 /* old pmacs need us to map as well */ 370 * and then map explicitly (assuming virtual mode)
371 */
372 int ret;
373 prom_arg_t result;
374
375 ret = call_prom_ret("call-method", 5, 2, &result,
376 ADDR("claim"), _prom->memory,
377 align, size, virt);
378 if (ret != 0 || result == -1)
379 return -1;
380 ret = call_prom_ret("call-method", 5, 2, &result,
381 ADDR("claim"), _prom->mmumap,
382 align, size, virt);
383 if (ret != 0) {
384 call_prom("call-method", 4, 1, ADDR("release"),
385 _prom->memory, size, virt);
386 return -1;
387 }
388 /* the 0x12 is M (coherence) + PP == read/write */
370 call_prom("call-method", 6, 1, 389 call_prom("call-method", 6, 1,
371 ADDR("map"), _prom->mmumap, 0, size, virt, virt); 390 ADDR("map"), _prom->mmumap, 0x12, size, virt, virt);
372 return ret; 391 return virt;
392 }
393 return call_prom("claim", 3, 1, (prom_arg_t)virt, (prom_arg_t)size,
394 (prom_arg_t)align);
373} 395}
374 396
375static void __init __attribute__((noreturn)) prom_panic(const char *reason) 397static void __init __attribute__((noreturn)) prom_panic(const char *reason)
@@ -415,11 +437,52 @@ static int inline prom_getproplen(phandle node, const char *pname)
415 return call_prom("getproplen", 2, 1, node, ADDR(pname)); 437 return call_prom("getproplen", 2, 1, node, ADDR(pname));
416} 438}
417 439
418static int inline prom_setprop(phandle node, const char *pname, 440static void add_string(char **str, const char *q)
419 void *value, size_t valuelen)
420{ 441{
421 return call_prom("setprop", 4, 1, node, ADDR(pname), 442 char *p = *str;
422 (u32)(unsigned long) value, (u32) valuelen); 443
444 while (*q)
445 *p++ = *q++;
446 *p++ = ' ';
447 *str = p;
448}
449
450static char *tohex(unsigned int x)
451{
452 static char digits[] = "0123456789abcdef";
453 static char result[9];
454 int i;
455
456 result[8] = 0;
457 i = 8;
458 do {
459 --i;
460 result[i] = digits[x & 0xf];
461 x >>= 4;
462 } while (x != 0 && i > 0);
463 return &result[i];
464}
465
466static int __init prom_setprop(phandle node, const char *nodename,
467 const char *pname, void *value, size_t valuelen)
468{
469 char cmd[256], *p;
470
471 if (!(OF_WORKAROUNDS & OF_WA_LONGTRAIL))
472 return call_prom("setprop", 4, 1, node, ADDR(pname),
473 (u32)(unsigned long) value, (u32) valuelen);
474
475 /* gah... setprop doesn't work on longtrail, have to use interpret */
476 p = cmd;
477 add_string(&p, "dev");
478 add_string(&p, nodename);
479 add_string(&p, tohex((u32)(unsigned long) value));
480 add_string(&p, tohex(valuelen));
481 add_string(&p, tohex(ADDR(pname)));
482 add_string(&p, tohex(strlen(RELOC(pname))));
483 add_string(&p, "property");
484 *p = 0;
485 return call_prom("interpret", 1, 1, (u32)(unsigned long) cmd);
423} 486}
424 487
425/* We can't use the standard versions because of RELOC headaches. */ 488/* We can't use the standard versions because of RELOC headaches. */
@@ -980,7 +1043,7 @@ static void __init prom_instantiate_rtas(void)
980 1043
981 rtas_inst = call_prom("open", 1, 1, ADDR("/rtas")); 1044 rtas_inst = call_prom("open", 1, 1, ADDR("/rtas"));
982 if (!IHANDLE_VALID(rtas_inst)) { 1045 if (!IHANDLE_VALID(rtas_inst)) {
983 prom_printf("opening rtas package failed"); 1046 prom_printf("opening rtas package failed (%x)\n", rtas_inst);
984 return; 1047 return;
985 } 1048 }
986 1049
@@ -988,7 +1051,7 @@ static void __init prom_instantiate_rtas(void)
988 1051
989 if (call_prom_ret("call-method", 3, 2, &entry, 1052 if (call_prom_ret("call-method", 3, 2, &entry,
990 ADDR("instantiate-rtas"), 1053 ADDR("instantiate-rtas"),
991 rtas_inst, base) == PROM_ERROR 1054 rtas_inst, base) != 0
992 || entry == 0) { 1055 || entry == 0) {
993 prom_printf(" failed\n"); 1056 prom_printf(" failed\n");
994 return; 1057 return;
@@ -997,8 +1060,10 @@ static void __init prom_instantiate_rtas(void)
997 1060
998 reserve_mem(base, size); 1061 reserve_mem(base, size);
999 1062
1000 prom_setprop(rtas_node, "linux,rtas-base", &base, sizeof(base)); 1063 prom_setprop(rtas_node, "/rtas", "linux,rtas-base",
1001 prom_setprop(rtas_node, "linux,rtas-entry", &entry, sizeof(entry)); 1064 &base, sizeof(base));
1065 prom_setprop(rtas_node, "/rtas", "linux,rtas-entry",
1066 &entry, sizeof(entry));
1002 1067
1003 prom_debug("rtas base = 0x%x\n", base); 1068 prom_debug("rtas base = 0x%x\n", base);
1004 prom_debug("rtas entry = 0x%x\n", entry); 1069 prom_debug("rtas entry = 0x%x\n", entry);
@@ -1089,10 +1154,6 @@ static void __init prom_initialize_tce_table(void)
1089 if (base < local_alloc_bottom) 1154 if (base < local_alloc_bottom)
1090 local_alloc_bottom = base; 1155 local_alloc_bottom = base;
1091 1156
1092 /* Save away the TCE table attributes for later use. */
1093 prom_setprop(node, "linux,tce-base", &base, sizeof(base));
1094 prom_setprop(node, "linux,tce-size", &minsize, sizeof(minsize));
1095
1096 /* It seems OF doesn't null-terminate the path :-( */ 1157 /* It seems OF doesn't null-terminate the path :-( */
1097 memset(path, 0, sizeof(path)); 1158 memset(path, 0, sizeof(path));
1098 /* Call OF to setup the TCE hardware */ 1159 /* Call OF to setup the TCE hardware */
@@ -1101,6 +1162,10 @@ static void __init prom_initialize_tce_table(void)
1101 prom_printf("package-to-path failed\n"); 1162 prom_printf("package-to-path failed\n");
1102 } 1163 }
1103 1164
1165 /* Save away the TCE table attributes for later use. */
1166 prom_setprop(node, path, "linux,tce-base", &base, sizeof(base));
1167 prom_setprop(node, path, "linux,tce-size", &minsize, sizeof(minsize));
1168
1104 prom_debug("TCE table: %s\n", path); 1169 prom_debug("TCE table: %s\n", path);
1105 prom_debug("\tnode = 0x%x\n", node); 1170 prom_debug("\tnode = 0x%x\n", node);
1106 prom_debug("\tbase = 0x%x\n", base); 1171 prom_debug("\tbase = 0x%x\n", base);
@@ -1342,6 +1407,7 @@ static void __init prom_init_client_services(unsigned long pp)
1342/* 1407/*
1343 * For really old powermacs, we need to map things we claim. 1408 * For really old powermacs, we need to map things we claim.
1344 * For that, we need the ihandle of the mmu. 1409 * For that, we need the ihandle of the mmu.
1410 * Also, on the longtrail, we need to work around other bugs.
1345 */ 1411 */
1346static void __init prom_find_mmu(void) 1412static void __init prom_find_mmu(void)
1347{ 1413{
@@ -1355,12 +1421,19 @@ static void __init prom_find_mmu(void)
1355 if (prom_getprop(oprom, "model", version, sizeof(version)) <= 0) 1421 if (prom_getprop(oprom, "model", version, sizeof(version)) <= 0)
1356 return; 1422 return;
1357 version[sizeof(version) - 1] = 0; 1423 version[sizeof(version) - 1] = 0;
1358 prom_printf("OF version is '%s'\n", version);
1359 /* XXX might need to add other versions here */ 1424 /* XXX might need to add other versions here */
1360 if (strcmp(version, "Open Firmware, 1.0.5") != 0) 1425 if (strcmp(version, "Open Firmware, 1.0.5") == 0)
1426 of_workarounds = OF_WA_CLAIM;
1427 else if (strncmp(version, "FirmWorks,3.", 12) == 0) {
1428 of_workarounds = OF_WA_CLAIM | OF_WA_LONGTRAIL;
1429 call_prom("interpret", 1, 1, "dev /memory 0 to allow-reclaim");
1430 } else
1361 return; 1431 return;
1432 _prom->memory = call_prom("open", 1, 1, ADDR("/memory"));
1362 prom_getprop(_prom->chosen, "mmu", &_prom->mmumap, 1433 prom_getprop(_prom->chosen, "mmu", &_prom->mmumap,
1363 sizeof(_prom->mmumap)); 1434 sizeof(_prom->mmumap));
1435 if (!IHANDLE_VALID(_prom->memory) || !IHANDLE_VALID(_prom->mmumap))
1436 of_workarounds &= ~OF_WA_CLAIM; /* hmmm */
1364} 1437}
1365#else 1438#else
1366#define prom_find_mmu() 1439#define prom_find_mmu()
@@ -1382,16 +1455,17 @@ static void __init prom_init_stdout(void)
1382 memset(path, 0, 256); 1455 memset(path, 0, 256);
1383 call_prom("instance-to-path", 3, 1, _prom->stdout, path, 255); 1456 call_prom("instance-to-path", 3, 1, _prom->stdout, path, 255);
1384 val = call_prom("instance-to-package", 1, 1, _prom->stdout); 1457 val = call_prom("instance-to-package", 1, 1, _prom->stdout);
1385 prom_setprop(_prom->chosen, "linux,stdout-package", &val, sizeof(val)); 1458 prom_setprop(_prom->chosen, "/chosen", "linux,stdout-package",
1459 &val, sizeof(val));
1386 prom_printf("OF stdout device is: %s\n", RELOC(of_stdout_device)); 1460 prom_printf("OF stdout device is: %s\n", RELOC(of_stdout_device));
1387 prom_setprop(_prom->chosen, "linux,stdout-path", 1461 prom_setprop(_prom->chosen, "/chosen", "linux,stdout-path",
1388 RELOC(of_stdout_device), strlen(RELOC(of_stdout_device))+1); 1462 path, strlen(path) + 1);
1389 1463
1390 /* If it's a display, note it */ 1464 /* If it's a display, note it */
1391 memset(type, 0, sizeof(type)); 1465 memset(type, 0, sizeof(type));
1392 prom_getprop(val, "device_type", type, sizeof(type)); 1466 prom_getprop(val, "device_type", type, sizeof(type));
1393 if (strcmp(type, RELOC("display")) == 0) 1467 if (strcmp(type, RELOC("display")) == 0)
1394 prom_setprop(val, "linux,boot-display", NULL, 0); 1468 prom_setprop(val, path, "linux,boot-display", NULL, 0);
1395} 1469}
1396 1470
1397static void __init prom_close_stdin(void) 1471static void __init prom_close_stdin(void)
@@ -1514,7 +1588,7 @@ static void __init prom_check_displays(void)
1514 1588
1515 /* Success */ 1589 /* Success */
1516 prom_printf("done\n"); 1590 prom_printf("done\n");
1517 prom_setprop(node, "linux,opened", NULL, 0); 1591 prom_setprop(node, path, "linux,opened", NULL, 0);
1518 1592
1519 /* Setup a usable color table when the appropriate 1593 /* Setup a usable color table when the appropriate
1520 * method is available. Should update this to set-colors */ 1594 * method is available. Should update this to set-colors */
@@ -1884,9 +1958,11 @@ static void __init fixup_device_tree(void)
1884 /* interrupt on this revision of u3 is number 0 and level */ 1958 /* interrupt on this revision of u3 is number 0 and level */
1885 interrupts[0] = 0; 1959 interrupts[0] = 0;
1886 interrupts[1] = 1; 1960 interrupts[1] = 1;
1887 prom_setprop(i2c, "interrupts", &interrupts, sizeof(interrupts)); 1961 prom_setprop(i2c, "/u3@0,f8000000/i2c@f8001000", "interrupts",
1962 &interrupts, sizeof(interrupts));
1888 parent = (u32)mpic; 1963 parent = (u32)mpic;
1889 prom_setprop(i2c, "interrupt-parent", &parent, sizeof(parent)); 1964 prom_setprop(i2c, "/u3@0,f8000000/i2c@f8001000", "interrupt-parent",
1965 &parent, sizeof(parent));
1890#endif 1966#endif
1891} 1967}
1892 1968
@@ -1922,11 +1998,11 @@ static void __init prom_check_initrd(unsigned long r3, unsigned long r4)
1922 RELOC(prom_initrd_end) = RELOC(prom_initrd_start) + r4; 1998 RELOC(prom_initrd_end) = RELOC(prom_initrd_start) + r4;
1923 1999
1924 val = RELOC(prom_initrd_start); 2000 val = RELOC(prom_initrd_start);
1925 prom_setprop(_prom->chosen, "linux,initrd-start", &val, 2001 prom_setprop(_prom->chosen, "/chosen", "linux,initrd-start",
1926 sizeof(val)); 2002 &val, sizeof(val));
1927 val = RELOC(prom_initrd_end); 2003 val = RELOC(prom_initrd_end);
1928 prom_setprop(_prom->chosen, "linux,initrd-end", &val, 2004 prom_setprop(_prom->chosen, "/chosen", "linux,initrd-end",
1929 sizeof(val)); 2005 &val, sizeof(val));
1930 2006
1931 reserve_mem(RELOC(prom_initrd_start), 2007 reserve_mem(RELOC(prom_initrd_start),
1932 RELOC(prom_initrd_end) - RELOC(prom_initrd_start)); 2008 RELOC(prom_initrd_end) - RELOC(prom_initrd_start));
@@ -1969,14 +2045,15 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
1969 prom_init_client_services(pp); 2045 prom_init_client_services(pp);
1970 2046
1971 /* 2047 /*
1972 * Init prom stdout device 2048 * See if this OF is old enough that we need to do explicit maps
2049 * and other workarounds
1973 */ 2050 */
1974 prom_init_stdout(); 2051 prom_find_mmu();
1975 2052
1976 /* 2053 /*
1977 * See if this OF is old enough that we need to do explicit maps 2054 * Init prom stdout device
1978 */ 2055 */
1979 prom_find_mmu(); 2056 prom_init_stdout();
1980 2057
1981 /* 2058 /*
1982 * Check for an initrd 2059 * Check for an initrd
@@ -1989,14 +2066,15 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
1989 */ 2066 */
1990 RELOC(of_platform) = prom_find_machine_type(); 2067 RELOC(of_platform) = prom_find_machine_type();
1991 getprop_rval = RELOC(of_platform); 2068 getprop_rval = RELOC(of_platform);
1992 prom_setprop(_prom->chosen, "linux,platform", 2069 prom_setprop(_prom->chosen, "/chosen", "linux,platform",
1993 &getprop_rval, sizeof(getprop_rval)); 2070 &getprop_rval, sizeof(getprop_rval));
1994 2071
1995#ifdef CONFIG_PPC_PSERIES 2072#ifdef CONFIG_PPC_PSERIES
1996 /* 2073 /*
1997 * On pSeries, inform the firmware about our capabilities 2074 * On pSeries, inform the firmware about our capabilities
1998 */ 2075 */
1999 if (RELOC(of_platform) & PLATFORM_PSERIES) 2076 if (RELOC(of_platform) == PLATFORM_PSERIES ||
2077 RELOC(of_platform) == PLATFORM_PSERIES_LPAR)
2000 prom_send_capabilities(); 2078 prom_send_capabilities();
2001#endif 2079#endif
2002 2080
@@ -2050,21 +2128,23 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
2050 * Fill in some infos for use by the kernel later on 2128 * Fill in some infos for use by the kernel later on
2051 */ 2129 */
2052 if (RELOC(prom_memory_limit)) 2130 if (RELOC(prom_memory_limit))
2053 prom_setprop(_prom->chosen, "linux,memory-limit", 2131 prom_setprop(_prom->chosen, "/chosen", "linux,memory-limit",
2054 &RELOC(prom_memory_limit), 2132 &RELOC(prom_memory_limit),
2055 sizeof(prom_memory_limit)); 2133 sizeof(prom_memory_limit));
2056#ifdef CONFIG_PPC64 2134#ifdef CONFIG_PPC64
2057 if (RELOC(ppc64_iommu_off)) 2135 if (RELOC(ppc64_iommu_off))
2058 prom_setprop(_prom->chosen, "linux,iommu-off", NULL, 0); 2136 prom_setprop(_prom->chosen, "/chosen", "linux,iommu-off",
2137 NULL, 0);
2059 2138
2060 if (RELOC(iommu_force_on)) 2139 if (RELOC(iommu_force_on))
2061 prom_setprop(_prom->chosen, "linux,iommu-force-on", NULL, 0); 2140 prom_setprop(_prom->chosen, "/chosen", "linux,iommu-force-on",
2141 NULL, 0);
2062 2142
2063 if (RELOC(prom_tce_alloc_start)) { 2143 if (RELOC(prom_tce_alloc_start)) {
2064 prom_setprop(_prom->chosen, "linux,tce-alloc-start", 2144 prom_setprop(_prom->chosen, "/chosen", "linux,tce-alloc-start",
2065 &RELOC(prom_tce_alloc_start), 2145 &RELOC(prom_tce_alloc_start),
2066 sizeof(prom_tce_alloc_start)); 2146 sizeof(prom_tce_alloc_start));
2067 prom_setprop(_prom->chosen, "linux,tce-alloc-end", 2147 prom_setprop(_prom->chosen, "/chosen", "linux,tce-alloc-end",
2068 &RELOC(prom_tce_alloc_end), 2148 &RELOC(prom_tce_alloc_end),
2069 sizeof(prom_tce_alloc_end)); 2149 sizeof(prom_tce_alloc_end));
2070 } 2150 }
@@ -2081,8 +2161,13 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
2081 prom_printf("copying OF device tree ...\n"); 2161 prom_printf("copying OF device tree ...\n");
2082 flatten_device_tree(); 2162 flatten_device_tree();
2083 2163
2084 /* in case stdin is USB and still active on IBM machines... */ 2164 /*
2085 prom_close_stdin(); 2165 * in case stdin is USB and still active on IBM machines...
2166 * Unfortunately quiesce crashes on some powermacs if we have
2167 * closed stdin already (in particular the powerbook 101).
2168 */
2169 if (RELOC(of_platform) != PLATFORM_POWERMAC)
2170 prom_close_stdin();
2086 2171
2087 /* 2172 /*
2088 * Call OF "quiesce" method to shut down pending DMA's from 2173 * Call OF "quiesce" method to shut down pending DMA's from
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 5bdd5b079d96..ae1a36449ccd 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -259,7 +259,7 @@ static int __init proc_rtas_init(void)
259{ 259{
260 struct proc_dir_entry *entry; 260 struct proc_dir_entry *entry;
261 261
262 if (!(systemcfg->platform & PLATFORM_PSERIES)) 262 if (_machine != PLATFORM_PSERIES && _machine != PLATFORM_PSERIES_LPAR)
263 return 1; 263 return 1;
264 264
265 rtas_node = of_find_node_by_name(NULL, "rtas"); 265 rtas_node = of_find_node_by_name(NULL, "rtas");
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 9d4e07f6f1ec..4283fa33f784 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -29,9 +29,6 @@
29#include <asm/delay.h> 29#include <asm/delay.h>
30#include <asm/uaccess.h> 30#include <asm/uaccess.h>
31#include <asm/lmb.h> 31#include <asm/lmb.h>
32#ifdef CONFIG_PPC64
33#include <asm/systemcfg.h>
34#endif
35 32
36struct rtas_t rtas = { 33struct rtas_t rtas = {
37 .lock = SPIN_LOCK_UNLOCKED 34 .lock = SPIN_LOCK_UNLOCKED
@@ -671,7 +668,7 @@ void __init rtas_initialize(void)
671 * the stop-self token if any 668 * the stop-self token if any
672 */ 669 */
673#ifdef CONFIG_PPC64 670#ifdef CONFIG_PPC64
674 if (systemcfg->platform == PLATFORM_PSERIES_LPAR) 671 if (_machine == PLATFORM_PSERIES_LPAR)
675 rtas_region = min(lmb.rmo_size, RTAS_INSTANTIATE_MAX); 672 rtas_region = min(lmb.rmo_size, RTAS_INSTANTIATE_MAX);
676#endif 673#endif
677 rtas_rmo_buf = lmb_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE, rtas_region); 674 rtas_rmo_buf = lmb_alloc_base(RTAS_RMOBUF_MAX, PAGE_SIZE, rtas_region);
diff --git a/arch/ppc64/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 3c3f19192fcc..0e5a8e116653 100644
--- a/arch/ppc64/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -5,19 +5,19 @@
5 * Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM 5 * Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM
6 * 6 *
7 * RTAS specific routines for PCI. 7 * RTAS specific routines for PCI.
8 * 8 *
9 * Based on code from pci.c, chrp_pci.c and pSeries_pci.c 9 * Based on code from pci.c, chrp_pci.c and pSeries_pci.c
10 * 10 *
11 * This program is free software; you can redistribute it and/or modify 11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by 12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or 13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version. 14 * (at your option) any later version.
15 * 15 *
16 * This program is distributed in the hope that it will be useful, 16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details. 19 * GNU General Public License for more details.
20 * 20 *
21 * You should have received a copy of the GNU General Public License 21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software 22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
@@ -47,7 +47,7 @@ static int write_pci_config;
47static int ibm_read_pci_config; 47static int ibm_read_pci_config;
48static int ibm_write_pci_config; 48static int ibm_write_pci_config;
49 49
50static int config_access_valid(struct pci_dn *dn, int where) 50static inline int config_access_valid(struct pci_dn *dn, int where)
51{ 51{
52 if (where < 256) 52 if (where < 256)
53 return 1; 53 return 1;
@@ -72,16 +72,14 @@ static int of_device_available(struct device_node * dn)
72 return 0; 72 return 0;
73} 73}
74 74
75static int rtas_read_config(struct device_node *dn, int where, int size, u32 *val) 75static int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val)
76{ 76{
77 int returnval = -1; 77 int returnval = -1;
78 unsigned long buid, addr; 78 unsigned long buid, addr;
79 int ret; 79 int ret;
80 struct pci_dn *pdn;
81 80
82 if (!dn || !dn->data) 81 if (!pdn)
83 return PCIBIOS_DEVICE_NOT_FOUND; 82 return PCIBIOS_DEVICE_NOT_FOUND;
84 pdn = dn->data;
85 if (!config_access_valid(pdn, where)) 83 if (!config_access_valid(pdn, where))
86 return PCIBIOS_BAD_REGISTER_NUMBER; 84 return PCIBIOS_BAD_REGISTER_NUMBER;
87 85
@@ -90,7 +88,7 @@ static int rtas_read_config(struct device_node *dn, int where, int size, u32 *va
90 buid = pdn->phb->buid; 88 buid = pdn->phb->buid;
91 if (buid) { 89 if (buid) {
92 ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval, 90 ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval,
93 addr, buid >> 32, buid & 0xffffffff, size); 91 addr, BUID_HI(buid), BUID_LO(buid), size);
94 } else { 92 } else {
95 ret = rtas_call(read_pci_config, 2, 2, &returnval, addr, size); 93 ret = rtas_call(read_pci_config, 2, 2, &returnval, addr, size);
96 } 94 }
@@ -100,7 +98,7 @@ static int rtas_read_config(struct device_node *dn, int where, int size, u32 *va
100 return PCIBIOS_DEVICE_NOT_FOUND; 98 return PCIBIOS_DEVICE_NOT_FOUND;
101 99
102 if (returnval == EEH_IO_ERROR_VALUE(size) && 100 if (returnval == EEH_IO_ERROR_VALUE(size) &&
103 eeh_dn_check_failure (dn, NULL)) 101 eeh_dn_check_failure (pdn->node, NULL))
104 return PCIBIOS_DEVICE_NOT_FOUND; 102 return PCIBIOS_DEVICE_NOT_FOUND;
105 103
106 return PCIBIOS_SUCCESSFUL; 104 return PCIBIOS_SUCCESSFUL;
@@ -118,23 +116,23 @@ static int rtas_pci_read_config(struct pci_bus *bus,
118 busdn = bus->sysdata; /* must be a phb */ 116 busdn = bus->sysdata; /* must be a phb */
119 117
120 /* Search only direct children of the bus */ 118 /* Search only direct children of the bus */
121 for (dn = busdn->child; dn; dn = dn->sibling) 119 for (dn = busdn->child; dn; dn = dn->sibling) {
122 if (dn->data && PCI_DN(dn)->devfn == devfn 120 struct pci_dn *pdn = PCI_DN(dn);
121 if (pdn && pdn->devfn == devfn
123 && of_device_available(dn)) 122 && of_device_available(dn))
124 return rtas_read_config(dn, where, size, val); 123 return rtas_read_config(pdn, where, size, val);
124 }
125 125
126 return PCIBIOS_DEVICE_NOT_FOUND; 126 return PCIBIOS_DEVICE_NOT_FOUND;
127} 127}
128 128
129int rtas_write_config(struct device_node *dn, int where, int size, u32 val) 129int rtas_write_config(struct pci_dn *pdn, int where, int size, u32 val)
130{ 130{
131 unsigned long buid, addr; 131 unsigned long buid, addr;
132 int ret; 132 int ret;
133 struct pci_dn *pdn;
134 133
135 if (!dn || !dn->data) 134 if (!pdn)
136 return PCIBIOS_DEVICE_NOT_FOUND; 135 return PCIBIOS_DEVICE_NOT_FOUND;
137 pdn = dn->data;
138 if (!config_access_valid(pdn, where)) 136 if (!config_access_valid(pdn, where))
139 return PCIBIOS_BAD_REGISTER_NUMBER; 137 return PCIBIOS_BAD_REGISTER_NUMBER;
140 138
@@ -142,7 +140,8 @@ int rtas_write_config(struct device_node *dn, int where, int size, u32 val)
142 (pdn->devfn << 8) | (where & 0xff); 140 (pdn->devfn << 8) | (where & 0xff);
143 buid = pdn->phb->buid; 141 buid = pdn->phb->buid;
144 if (buid) { 142 if (buid) {
145 ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr, buid >> 32, buid & 0xffffffff, size, (ulong) val); 143 ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr,
144 BUID_HI(buid), BUID_LO(buid), size, (ulong) val);
146 } else { 145 } else {
147 ret = rtas_call(write_pci_config, 3, 1, NULL, addr, size, (ulong)val); 146 ret = rtas_call(write_pci_config, 3, 1, NULL, addr, size, (ulong)val);
148 } 147 }
@@ -165,10 +164,12 @@ static int rtas_pci_write_config(struct pci_bus *bus,
165 busdn = bus->sysdata; /* must be a phb */ 164 busdn = bus->sysdata; /* must be a phb */
166 165
167 /* Search only direct children of the bus */ 166 /* Search only direct children of the bus */
168 for (dn = busdn->child; dn; dn = dn->sibling) 167 for (dn = busdn->child; dn; dn = dn->sibling) {
169 if (dn->data && PCI_DN(dn)->devfn == devfn 168 struct pci_dn *pdn = PCI_DN(dn);
169 if (pdn && pdn->devfn == devfn
170 && of_device_available(dn)) 170 && of_device_available(dn))
171 return rtas_write_config(dn, where, size, val); 171 return rtas_write_config(pdn, where, size, val);
172 }
172 return PCIBIOS_DEVICE_NOT_FOUND; 173 return PCIBIOS_DEVICE_NOT_FOUND;
173} 174}
174 175
@@ -221,7 +222,7 @@ static void python_countermeasures(struct device_node *dev,
221 /* Python's register file is 1 MB in size. */ 222 /* Python's register file is 1 MB in size. */
222 chip_regs = ioremap(reg_struct.address & ~(0xfffffUL), 0x100000); 223 chip_regs = ioremap(reg_struct.address & ~(0xfffffUL), 0x100000);
223 224
224 /* 225 /*
225 * Firmware doesn't always clear this bit which is critical 226 * Firmware doesn't always clear this bit which is critical
226 * for good performance - Anton 227 * for good performance - Anton
227 */ 228 */
@@ -292,7 +293,7 @@ static int phb_set_bus_ranges(struct device_node *dev,
292 if (bus_range == NULL || len < 2 * sizeof(int)) { 293 if (bus_range == NULL || len < 2 * sizeof(int)) {
293 return 1; 294 return 1;
294 } 295 }
295 296
296 phb->first_busno = bus_range[0]; 297 phb->first_busno = bus_range[0];
297 phb->last_busno = bus_range[1]; 298 phb->last_busno = bus_range[1];
298 299
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index e22856ecb5a0..bae4bff138f1 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -33,6 +33,7 @@
33#include <asm/io.h> 33#include <asm/io.h>
34#include <asm/prom.h> 34#include <asm/prom.h>
35#include <asm/processor.h> 35#include <asm/processor.h>
36#include <asm/systemcfg.h>
36#include <asm/pgtable.h> 37#include <asm/pgtable.h>
37#include <asm/smp.h> 38#include <asm/smp.h>
38#include <asm/elf.h> 39#include <asm/elf.h>
@@ -51,6 +52,9 @@
51#include <asm/page.h> 52#include <asm/page.h>
52#include <asm/mmu.h> 53#include <asm/mmu.h>
53#include <asm/lmb.h> 54#include <asm/lmb.h>
55#include <asm/xmon.h>
56
57#include "setup.h"
54 58
55#undef DEBUG 59#undef DEBUG
56 60
@@ -60,6 +64,13 @@
60#define DBG(fmt...) 64#define DBG(fmt...)
61#endif 65#endif
62 66
67#ifdef CONFIG_PPC_MULTIPLATFORM
68int _machine = 0;
69EXPORT_SYMBOL(_machine);
70#endif
71
72unsigned long klimit = (unsigned long) _end;
73
63/* 74/*
64 * This still seems to be needed... -- paulus 75 * This still seems to be needed... -- paulus
65 */ 76 */
@@ -510,8 +521,8 @@ void __init smp_setup_cpu_maps(void)
510 * On pSeries LPAR, we need to know how many cpus 521 * On pSeries LPAR, we need to know how many cpus
511 * could possibly be added to this partition. 522 * could possibly be added to this partition.
512 */ 523 */
513 if (systemcfg->platform == PLATFORM_PSERIES_LPAR && 524 if (_machine == PLATFORM_PSERIES_LPAR &&
514 (dn = of_find_node_by_path("/rtas"))) { 525 (dn = of_find_node_by_path("/rtas"))) {
515 int num_addr_cell, num_size_cell, maxcpus; 526 int num_addr_cell, num_size_cell, maxcpus;
516 unsigned int *ireg; 527 unsigned int *ireg;
517 528
@@ -555,7 +566,27 @@ void __init smp_setup_cpu_maps(void)
555 cpu_set(cpu ^ 0x1, cpu_sibling_map[cpu]); 566 cpu_set(cpu ^ 0x1, cpu_sibling_map[cpu]);
556 } 567 }
557 568
558 systemcfg->processorCount = num_present_cpus(); 569 _systemcfg->processorCount = num_present_cpus();
559#endif /* CONFIG_PPC64 */ 570#endif /* CONFIG_PPC64 */
560} 571}
561#endif /* CONFIG_SMP */ 572#endif /* CONFIG_SMP */
573
574#ifdef CONFIG_XMON
575static int __init early_xmon(char *p)
576{
577 /* ensure xmon is enabled */
578 if (p) {
579 if (strncmp(p, "on", 2) == 0)
580 xmon_init(1);
581 if (strncmp(p, "off", 3) == 0)
582 xmon_init(0);
583 if (strncmp(p, "early", 5) != 0)
584 return 0;
585 }
586 xmon_init(1);
587 debugger(NULL);
588
589 return 0;
590}
591early_param("xmon", early_xmon);
592#endif
diff --git a/arch/powerpc/kernel/setup.h b/arch/powerpc/kernel/setup.h
new file mode 100644
index 000000000000..2ebba755272e
--- /dev/null
+++ b/arch/powerpc/kernel/setup.h
@@ -0,0 +1,6 @@
1#ifndef _POWERPC_KERNEL_SETUP_H
2#define _POWERPC_KERNEL_SETUP_H
3
4void check_for_initrd(void);
5
6#endif /* _POWERPC_KERNEL_SETUP_H */
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 3af2631e3fab..c98cfcc9cd9a 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -40,6 +40,8 @@
40#include <asm/xmon.h> 40#include <asm/xmon.h>
41#include <asm/time.h> 41#include <asm/time.h>
42 42
43#include "setup.h"
44
43#define DBG(fmt...) 45#define DBG(fmt...)
44 46
45#if defined CONFIG_KGDB 47#if defined CONFIG_KGDB
@@ -70,8 +72,6 @@ unsigned int DMA_MODE_WRITE;
70int have_of = 1; 72int have_of = 1;
71 73
72#ifdef CONFIG_PPC_MULTIPLATFORM 74#ifdef CONFIG_PPC_MULTIPLATFORM
73int _machine = 0;
74
75extern void prep_init(void); 75extern void prep_init(void);
76extern void pmac_init(void); 76extern void pmac_init(void);
77extern void chrp_init(void); 77extern void chrp_init(void);
@@ -279,7 +279,6 @@ arch_initcall(ppc_init);
279/* Warning, IO base is not yet inited */ 279/* Warning, IO base is not yet inited */
280void __init setup_arch(char **cmdline_p) 280void __init setup_arch(char **cmdline_p)
281{ 281{
282 extern char *klimit;
283 extern void do_init_bootmem(void); 282 extern void do_init_bootmem(void);
284 283
285 /* so udelay does something sensible, assume <= 1000 bogomips */ 284 /* so udelay does something sensible, assume <= 1000 bogomips */
@@ -303,14 +302,9 @@ void __init setup_arch(char **cmdline_p)
303 pmac_feature_init(); /* New cool way */ 302 pmac_feature_init(); /* New cool way */
304#endif 303#endif
305 304
306#ifdef CONFIG_XMON 305#ifdef CONFIG_XMON_DEFAULT
307 xmon_map_scc(); 306 xmon_init(1);
308 if (strstr(cmd_line, "xmon")) { 307#endif
309 xmon_init(1);
310 debugger(NULL);
311 }
312#endif /* CONFIG_XMON */
313 if ( ppc_md.progress ) ppc_md.progress("setup_arch: enter", 0x3eab);
314 308
315#if defined(CONFIG_KGDB) 309#if defined(CONFIG_KGDB)
316 if (ppc_md.kgdb_map_scc) 310 if (ppc_md.kgdb_map_scc)
@@ -343,7 +337,7 @@ void __init setup_arch(char **cmdline_p)
343 init_mm.start_code = PAGE_OFFSET; 337 init_mm.start_code = PAGE_OFFSET;
344 init_mm.end_code = (unsigned long) _etext; 338 init_mm.end_code = (unsigned long) _etext;
345 init_mm.end_data = (unsigned long) _edata; 339 init_mm.end_data = (unsigned long) _edata;
346 init_mm.brk = (unsigned long) klimit; 340 init_mm.brk = klimit;
347 341
348 /* Save unparsed command line copy for /proc/cmdline */ 342 /* Save unparsed command line copy for /proc/cmdline */
349 strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE); 343 strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 0471e843b6c5..6791668213e7 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -61,6 +61,8 @@
61#include <asm/xmon.h> 61#include <asm/xmon.h>
62#include <asm/udbg.h> 62#include <asm/udbg.h>
63 63
64#include "setup.h"
65
64#ifdef DEBUG 66#ifdef DEBUG
65#define DBG(fmt...) udbg_printf(fmt) 67#define DBG(fmt...) udbg_printf(fmt)
66#else 68#else
@@ -94,15 +96,6 @@ extern void udbg_init_maple_realmode(void);
94 do { udbg_putc = call_rtas_display_status_delay; } while(0) 96 do { udbg_putc = call_rtas_display_status_delay; } while(0)
95#endif 97#endif
96 98
97/* extern void *stab; */
98extern unsigned long klimit;
99
100extern void mm_init_ppc64(void);
101extern void stab_initialize(unsigned long stab);
102extern void htab_initialize(void);
103extern void early_init_devtree(void *flat_dt);
104extern void unflatten_device_tree(void);
105
106int have_of = 1; 99int have_of = 1;
107int boot_cpuid = 0; 100int boot_cpuid = 0;
108int boot_cpuid_phys = 0; 101int boot_cpuid_phys = 0;
@@ -254,11 +247,10 @@ void __init early_setup(unsigned long dt_ptr)
254 * Iterate all ppc_md structures until we find the proper 247 * Iterate all ppc_md structures until we find the proper
255 * one for the current machine type 248 * one for the current machine type
256 */ 249 */
257 DBG("Probing machine type for platform %x...\n", 250 DBG("Probing machine type for platform %x...\n", _machine);
258 systemcfg->platform);
259 251
260 for (mach = machines; *mach; mach++) { 252 for (mach = machines; *mach; mach++) {
261 if ((*mach)->probe(systemcfg->platform)) 253 if ((*mach)->probe(_machine))
262 break; 254 break;
263 } 255 }
264 /* What can we do if we didn't find ? */ 256 /* What can we do if we didn't find ? */
@@ -290,6 +282,28 @@ void __init early_setup(unsigned long dt_ptr)
290 DBG(" <- early_setup()\n"); 282 DBG(" <- early_setup()\n");
291} 283}
292 284
285#ifdef CONFIG_SMP
286void early_setup_secondary(void)
287{
288 struct paca_struct *lpaca = get_paca();
289
290 /* Mark enabled in PACA */
291 lpaca->proc_enabled = 0;
292
293 /* Initialize hash table for that CPU */
294 htab_initialize_secondary();
295
296 /* Initialize STAB/SLB. We use a virtual address as it works
297 * in real mode on pSeries and we want a virutal address on
298 * iSeries anyway
299 */
300 if (cpu_has_feature(CPU_FTR_SLB))
301 slb_initialize();
302 else
303 stab_initialize(lpaca->stab_addr);
304}
305
306#endif /* CONFIG_SMP */
293 307
294#if defined(CONFIG_SMP) || defined(CONFIG_KEXEC) 308#if defined(CONFIG_SMP) || defined(CONFIG_KEXEC)
295void smp_release_cpus(void) 309void smp_release_cpus(void)
@@ -315,7 +329,8 @@ void smp_release_cpus(void)
315#endif /* CONFIG_SMP || CONFIG_KEXEC */ 329#endif /* CONFIG_SMP || CONFIG_KEXEC */
316 330
317/* 331/*
318 * Initialize some remaining members of the ppc64_caches and systemcfg structures 332 * Initialize some remaining members of the ppc64_caches and systemcfg
333 * structures
319 * (at least until we get rid of them completely). This is mostly some 334 * (at least until we get rid of them completely). This is mostly some
320 * cache informations about the CPU that will be used by cache flush 335 * cache informations about the CPU that will be used by cache flush
321 * routines and/or provided to userland 336 * routines and/or provided to userland
@@ -340,7 +355,7 @@ static void __init initialize_cache_info(void)
340 const char *dc, *ic; 355 const char *dc, *ic;
341 356
342 /* Then read cache informations */ 357 /* Then read cache informations */
343 if (systemcfg->platform == PLATFORM_POWERMAC) { 358 if (_machine == PLATFORM_POWERMAC) {
344 dc = "d-cache-block-size"; 359 dc = "d-cache-block-size";
345 ic = "i-cache-block-size"; 360 ic = "i-cache-block-size";
346 } else { 361 } else {
@@ -360,8 +375,8 @@ static void __init initialize_cache_info(void)
360 DBG("Argh, can't find dcache properties ! " 375 DBG("Argh, can't find dcache properties ! "
361 "sizep: %p, lsizep: %p\n", sizep, lsizep); 376 "sizep: %p, lsizep: %p\n", sizep, lsizep);
362 377
363 systemcfg->dcache_size = ppc64_caches.dsize = size; 378 _systemcfg->dcache_size = ppc64_caches.dsize = size;
364 systemcfg->dcache_line_size = 379 _systemcfg->dcache_line_size =
365 ppc64_caches.dline_size = lsize; 380 ppc64_caches.dline_size = lsize;
366 ppc64_caches.log_dline_size = __ilog2(lsize); 381 ppc64_caches.log_dline_size = __ilog2(lsize);
367 ppc64_caches.dlines_per_page = PAGE_SIZE / lsize; 382 ppc64_caches.dlines_per_page = PAGE_SIZE / lsize;
@@ -378,8 +393,8 @@ static void __init initialize_cache_info(void)
378 DBG("Argh, can't find icache properties ! " 393 DBG("Argh, can't find icache properties ! "
379 "sizep: %p, lsizep: %p\n", sizep, lsizep); 394 "sizep: %p, lsizep: %p\n", sizep, lsizep);
380 395
381 systemcfg->icache_size = ppc64_caches.isize = size; 396 _systemcfg->icache_size = ppc64_caches.isize = size;
382 systemcfg->icache_line_size = 397 _systemcfg->icache_line_size =
383 ppc64_caches.iline_size = lsize; 398 ppc64_caches.iline_size = lsize;
384 ppc64_caches.log_iline_size = __ilog2(lsize); 399 ppc64_caches.log_iline_size = __ilog2(lsize);
385 ppc64_caches.ilines_per_page = PAGE_SIZE / lsize; 400 ppc64_caches.ilines_per_page = PAGE_SIZE / lsize;
@@ -387,10 +402,12 @@ static void __init initialize_cache_info(void)
387 } 402 }
388 403
389 /* Add an eye catcher and the systemcfg layout version number */ 404 /* Add an eye catcher and the systemcfg layout version number */
390 strcpy(systemcfg->eye_catcher, "SYSTEMCFG:PPC64"); 405 strcpy(_systemcfg->eye_catcher, "SYSTEMCFG:PPC64");
391 systemcfg->version.major = SYSTEMCFG_MAJOR; 406 _systemcfg->version.major = SYSTEMCFG_MAJOR;
392 systemcfg->version.minor = SYSTEMCFG_MINOR; 407 _systemcfg->version.minor = SYSTEMCFG_MINOR;
393 systemcfg->processor = mfspr(SPRN_PVR); 408 _systemcfg->processor = mfspr(SPRN_PVR);
409 _systemcfg->platform = _machine;
410 _systemcfg->physicalMemorySize = lmb_phys_mem_size();
394 411
395 DBG(" <- initialize_cache_info()\n"); 412 DBG(" <- initialize_cache_info()\n");
396} 413}
@@ -479,10 +496,10 @@ void __init setup_system(void)
479 printk("-----------------------------------------------------\n"); 496 printk("-----------------------------------------------------\n");
480 printk("ppc64_pft_size = 0x%lx\n", ppc64_pft_size); 497 printk("ppc64_pft_size = 0x%lx\n", ppc64_pft_size);
481 printk("ppc64_interrupt_controller = 0x%ld\n", ppc64_interrupt_controller); 498 printk("ppc64_interrupt_controller = 0x%ld\n", ppc64_interrupt_controller);
482 printk("systemcfg = 0x%p\n", systemcfg); 499 printk("systemcfg = 0x%p\n", _systemcfg);
483 printk("systemcfg->platform = 0x%x\n", systemcfg->platform); 500 printk("systemcfg->platform = 0x%x\n", _systemcfg->platform);
484 printk("systemcfg->processorCount = 0x%lx\n", systemcfg->processorCount); 501 printk("systemcfg->processorCount = 0x%lx\n", _systemcfg->processorCount);
485 printk("systemcfg->physicalMemorySize = 0x%lx\n", systemcfg->physicalMemorySize); 502 printk("systemcfg->physicalMemorySize = 0x%lx\n", _systemcfg->physicalMemorySize);
486 printk("ppc64_caches.dcache_line_size = 0x%x\n", 503 printk("ppc64_caches.dcache_line_size = 0x%x\n",
487 ppc64_caches.dline_size); 504 ppc64_caches.dline_size);
488 printk("ppc64_caches.icache_line_size = 0x%x\n", 505 printk("ppc64_caches.icache_line_size = 0x%x\n",
@@ -564,12 +581,12 @@ void __init setup_syscall_map(void)
564 for (i = 0; i < __NR_syscalls; i++) { 581 for (i = 0; i < __NR_syscalls; i++) {
565 if (sys_call_table[i*2] != sys_ni_syscall) { 582 if (sys_call_table[i*2] != sys_ni_syscall) {
566 count64++; 583 count64++;
567 systemcfg->syscall_map_64[i >> 5] |= 584 _systemcfg->syscall_map_64[i >> 5] |=
568 0x80000000UL >> (i & 0x1f); 585 0x80000000UL >> (i & 0x1f);
569 } 586 }
570 if (sys_call_table[i*2+1] != sys_ni_syscall) { 587 if (sys_call_table[i*2+1] != sys_ni_syscall) {
571 count32++; 588 count32++;
572 systemcfg->syscall_map_32[i >> 5] |= 589 _systemcfg->syscall_map_32[i >> 5] |=
573 0x80000000UL >> (i & 0x1f); 590 0x80000000UL >> (i & 0x1f);
574 } 591 }
575 } 592 }
@@ -858,26 +875,6 @@ int check_legacy_ioport(unsigned long base_port)
858} 875}
859EXPORT_SYMBOL(check_legacy_ioport); 876EXPORT_SYMBOL(check_legacy_ioport);
860 877
861#ifdef CONFIG_XMON
862static int __init early_xmon(char *p)
863{
864 /* ensure xmon is enabled */
865 if (p) {
866 if (strncmp(p, "on", 2) == 0)
867 xmon_init(1);
868 if (strncmp(p, "off", 3) == 0)
869 xmon_init(0);
870 if (strncmp(p, "early", 5) != 0)
871 return 0;
872 }
873 xmon_init(1);
874 debugger(NULL);
875
876 return 0;
877}
878early_param("xmon", early_xmon);
879#endif
880
881void cpu_die(void) 878void cpu_die(void)
882{ 879{
883 if (ppc_md.cpu_die) 880 if (ppc_md.cpu_die)
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 081d931eae48..a7c4515f320f 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -42,6 +42,7 @@
42 42
43#include <asm/uaccess.h> 43#include <asm/uaccess.h>
44#include <asm/cacheflush.h> 44#include <asm/cacheflush.h>
45#include <asm/sigcontext.h>
45#ifdef CONFIG_PPC64 46#ifdef CONFIG_PPC64
46#include "ppc32.h" 47#include "ppc32.h"
47#include <asm/unistd.h> 48#include <asm/unistd.h>
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 36d67a8d7cbb..e28a139c29d0 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -44,6 +44,7 @@
44#include <asm/cputable.h> 44#include <asm/cputable.h>
45#include <asm/system.h> 45#include <asm/system.h>
46#include <asm/mpic.h> 46#include <asm/mpic.h>
47#include <asm/systemcfg.h>
47#ifdef CONFIG_PPC64 48#ifdef CONFIG_PPC64
48#include <asm/paca.h> 49#include <asm/paca.h>
49#endif 50#endif
@@ -368,9 +369,11 @@ int generic_cpu_disable(void)
368 if (cpu == boot_cpuid) 369 if (cpu == boot_cpuid)
369 return -EBUSY; 370 return -EBUSY;
370 371
371 systemcfg->processorCount--;
372 cpu_clear(cpu, cpu_online_map); 372 cpu_clear(cpu, cpu_online_map);
373#ifdef CONFIG_PPC64
374 _systemcfg->processorCount--;
373 fixup_irqs(cpu_online_map); 375 fixup_irqs(cpu_online_map);
376#endif
374 return 0; 377 return 0;
375} 378}
376 379
@@ -388,9 +391,11 @@ int generic_cpu_enable(unsigned int cpu)
388 while (!cpu_online(cpu)) 391 while (!cpu_online(cpu))
389 cpu_relax(); 392 cpu_relax();
390 393
394#ifdef CONFIG_PPC64
391 fixup_irqs(cpu_online_map); 395 fixup_irqs(cpu_online_map);
392 /* counter the irq disable in fixup_irqs */ 396 /* counter the irq disable in fixup_irqs */
393 local_irq_enable(); 397 local_irq_enable();
398#endif
394 return 0; 399 return 0;
395} 400}
396 401
@@ -419,7 +424,9 @@ void generic_mach_cpu_die(void)
419 while (__get_cpu_var(cpu_state) != CPU_UP_PREPARE) 424 while (__get_cpu_var(cpu_state) != CPU_UP_PREPARE)
420 cpu_relax(); 425 cpu_relax();
421 426
427#ifdef CONFIG_PPC64
422 flush_tlb_pending(); 428 flush_tlb_pending();
429#endif
423 cpu_set(cpu, cpu_online_map); 430 cpu_set(cpu, cpu_online_map);
424 local_irq_enable(); 431 local_irq_enable();
425} 432}
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index a8210ed5c686..9c921d1c4084 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -52,7 +52,6 @@
52#include <asm/semaphore.h> 52#include <asm/semaphore.h>
53#include <asm/time.h> 53#include <asm/time.h>
54#include <asm/mmu_context.h> 54#include <asm/mmu_context.h>
55#include <asm/systemcfg.h>
56#include <asm/ppc-pci.h> 55#include <asm/ppc-pci.h>
57 56
58/* readdir & getdents */ 57/* readdir & getdents */
diff --git a/arch/ppc64/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index e99ec62c2c52..850af198fb5f 100644
--- a/arch/ppc64/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -232,7 +232,7 @@ static void register_cpu_online(unsigned int cpu)
232 sysdev_create_file(s, &attr_pmc7); 232 sysdev_create_file(s, &attr_pmc7);
233 if (cur_cpu_spec->num_pmcs >= 8) 233 if (cur_cpu_spec->num_pmcs >= 8)
234 sysdev_create_file(s, &attr_pmc8); 234 sysdev_create_file(s, &attr_pmc8);
235 235
236 if (cpu_has_feature(CPU_FTR_SMT)) 236 if (cpu_has_feature(CPU_FTR_SMT))
237 sysdev_create_file(s, &attr_purr); 237 sysdev_create_file(s, &attr_purr);
238} 238}
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index a6282b625b44..260b6ecd26a9 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -271,13 +271,13 @@ static inline void update_gtod(u64 new_tb_stamp, u64 new_stamp_xsec,
271 * tb_to_xs and stamp_xsec values are consistent. If not, then it 271 * tb_to_xs and stamp_xsec values are consistent. If not, then it
272 * loops back and reads them again until this criteria is met. 272 * loops back and reads them again until this criteria is met.
273 */ 273 */
274 ++(systemcfg->tb_update_count); 274 ++(_systemcfg->tb_update_count);
275 smp_wmb(); 275 smp_wmb();
276 systemcfg->tb_orig_stamp = new_tb_stamp; 276 _systemcfg->tb_orig_stamp = new_tb_stamp;
277 systemcfg->stamp_xsec = new_stamp_xsec; 277 _systemcfg->stamp_xsec = new_stamp_xsec;
278 systemcfg->tb_to_xs = new_tb_to_xs; 278 _systemcfg->tb_to_xs = new_tb_to_xs;
279 smp_wmb(); 279 smp_wmb();
280 ++(systemcfg->tb_update_count); 280 ++(_systemcfg->tb_update_count);
281#endif 281#endif
282} 282}
283 283
@@ -357,8 +357,9 @@ static void iSeries_tb_recal(void)
357 do_gtod.tb_ticks_per_sec = tb_ticks_per_sec; 357 do_gtod.tb_ticks_per_sec = tb_ticks_per_sec;
358 tb_to_xs = divres.result_low; 358 tb_to_xs = divres.result_low;
359 do_gtod.varp->tb_to_xs = tb_to_xs; 359 do_gtod.varp->tb_to_xs = tb_to_xs;
360 systemcfg->tb_ticks_per_sec = tb_ticks_per_sec; 360 _systemcfg->tb_ticks_per_sec =
361 systemcfg->tb_to_xs = tb_to_xs; 361 tb_ticks_per_sec;
362 _systemcfg->tb_to_xs = tb_to_xs;
362 } 363 }
363 else { 364 else {
364 printk( "Titan recalibrate: FAILED (difference > 4 percent)\n" 365 printk( "Titan recalibrate: FAILED (difference > 4 percent)\n"
@@ -483,6 +484,8 @@ void __init smp_space_timers(unsigned int max_cpus)
483 unsigned long offset = tb_ticks_per_jiffy / max_cpus; 484 unsigned long offset = tb_ticks_per_jiffy / max_cpus;
484 unsigned long previous_tb = per_cpu(last_jiffy, boot_cpuid); 485 unsigned long previous_tb = per_cpu(last_jiffy, boot_cpuid);
485 486
487 /* make sure tb > per_cpu(last_jiffy, cpu) for all cpus always */
488 previous_tb -= tb_ticks_per_jiffy;
486 for_each_cpu(i) { 489 for_each_cpu(i) {
487 if (i != boot_cpuid) { 490 if (i != boot_cpuid) {
488 previous_tb += offset; 491 previous_tb += offset;
@@ -559,8 +562,8 @@ int do_settimeofday(struct timespec *tv)
559 update_gtod(tb_last_jiffy, new_xsec, do_gtod.varp->tb_to_xs); 562 update_gtod(tb_last_jiffy, new_xsec, do_gtod.varp->tb_to_xs);
560 563
561#ifdef CONFIG_PPC64 564#ifdef CONFIG_PPC64
562 systemcfg->tz_minuteswest = sys_tz.tz_minuteswest; 565 _systemcfg->tz_minuteswest = sys_tz.tz_minuteswest;
563 systemcfg->tz_dsttime = sys_tz.tz_dsttime; 566 _systemcfg->tz_dsttime = sys_tz.tz_dsttime;
564#endif 567#endif
565 568
566 write_sequnlock_irqrestore(&xtime_lock, flags); 569 write_sequnlock_irqrestore(&xtime_lock, flags);
@@ -711,11 +714,11 @@ void __init time_init(void)
711 do_gtod.varp->tb_to_xs = tb_to_xs; 714 do_gtod.varp->tb_to_xs = tb_to_xs;
712 do_gtod.tb_to_us = tb_to_us; 715 do_gtod.tb_to_us = tb_to_us;
713#ifdef CONFIG_PPC64 716#ifdef CONFIG_PPC64
714 systemcfg->tb_orig_stamp = tb_last_jiffy; 717 _systemcfg->tb_orig_stamp = tb_last_jiffy;
715 systemcfg->tb_update_count = 0; 718 _systemcfg->tb_update_count = 0;
716 systemcfg->tb_ticks_per_sec = tb_ticks_per_sec; 719 _systemcfg->tb_ticks_per_sec = tb_ticks_per_sec;
717 systemcfg->stamp_xsec = xtime.tv_sec * XSEC_PER_SEC; 720 _systemcfg->stamp_xsec = xtime.tv_sec * XSEC_PER_SEC;
718 systemcfg->tb_to_xs = tb_to_xs; 721 _systemcfg->tb_to_xs = tb_to_xs;
719#endif 722#endif
720 723
721 time_freq = 0; 724 time_freq = 0;
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 0578f8387603..2020bb7648fb 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -129,7 +129,7 @@ int die(const char *str, struct pt_regs *regs, long err)
129 nl = 1; 129 nl = 1;
130#endif 130#endif
131#ifdef CONFIG_PPC64 131#ifdef CONFIG_PPC64
132 switch (systemcfg->platform) { 132 switch (_machine) {
133 case PLATFORM_PSERIES: 133 case PLATFORM_PSERIES:
134 printk("PSERIES "); 134 printk("PSERIES ");
135 nl = 1; 135 nl = 1;
diff --git a/arch/powerpc/lib/bitops.c b/arch/powerpc/lib/bitops.c
index b67ce3004ebf..f68ad71a0187 100644
--- a/arch/powerpc/lib/bitops.c
+++ b/arch/powerpc/lib/bitops.c
@@ -41,7 +41,7 @@ unsigned long find_next_bit(const unsigned long *addr, unsigned long size,
41 tmp = *p; 41 tmp = *p;
42 42
43found_first: 43found_first:
44 tmp &= (~0UL >> (64 - size)); 44 tmp &= (~0UL >> (BITS_PER_LONG - size));
45 if (tmp == 0UL) /* Are any bits set? */ 45 if (tmp == 0UL) /* Are any bits set? */
46 return result + size; /* Nope. */ 46 return result + size; /* Nope. */
47found_middle: 47found_middle:
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 22e474876133..706e8a63ced9 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -84,10 +84,11 @@
84extern unsigned long dart_tablebase; 84extern unsigned long dart_tablebase;
85#endif /* CONFIG_U3_DART */ 85#endif /* CONFIG_U3_DART */
86 86
87static unsigned long _SDR1;
88struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
89
87hpte_t *htab_address; 90hpte_t *htab_address;
88unsigned long htab_hash_mask; 91unsigned long htab_hash_mask;
89unsigned long _SDR1;
90struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
91int mmu_linear_psize = MMU_PAGE_4K; 92int mmu_linear_psize = MMU_PAGE_4K;
92int mmu_virtual_psize = MMU_PAGE_4K; 93int mmu_virtual_psize = MMU_PAGE_4K;
93#ifdef CONFIG_HUGETLB_PAGE 94#ifdef CONFIG_HUGETLB_PAGE
@@ -165,7 +166,7 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
165 * normal insert callback here. 166 * normal insert callback here.
166 */ 167 */
167#ifdef CONFIG_PPC_ISERIES 168#ifdef CONFIG_PPC_ISERIES
168 if (systemcfg->platform == PLATFORM_ISERIES_LPAR) 169 if (_machine == PLATFORM_ISERIES_LPAR)
169 ret = iSeries_hpte_insert(hpteg, va, 170 ret = iSeries_hpte_insert(hpteg, va,
170 virt_to_abs(paddr), 171 virt_to_abs(paddr),
171 tmp_mode, 172 tmp_mode,
@@ -174,7 +175,7 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
174 else 175 else
175#endif 176#endif
176#ifdef CONFIG_PPC_PSERIES 177#ifdef CONFIG_PPC_PSERIES
177 if (systemcfg->platform & PLATFORM_LPAR) 178 if (_machine & PLATFORM_LPAR)
178 ret = pSeries_lpar_hpte_insert(hpteg, va, 179 ret = pSeries_lpar_hpte_insert(hpteg, va,
179 virt_to_abs(paddr), 180 virt_to_abs(paddr),
180 tmp_mode, 181 tmp_mode,
@@ -293,7 +294,7 @@ static void __init htab_init_page_sizes(void)
293 * Not in the device-tree, let's fallback on known size 294 * Not in the device-tree, let's fallback on known size
294 * list for 16M capable GP & GR 295 * list for 16M capable GP & GR
295 */ 296 */
296 if ((systemcfg->platform != PLATFORM_ISERIES_LPAR) && 297 if ((_machine != PLATFORM_ISERIES_LPAR) &&
297 cpu_has_feature(CPU_FTR_16M_PAGE)) 298 cpu_has_feature(CPU_FTR_16M_PAGE))
298 memcpy(mmu_psize_defs, mmu_psize_defaults_gp, 299 memcpy(mmu_psize_defs, mmu_psize_defaults_gp,
299 sizeof(mmu_psize_defaults_gp)); 300 sizeof(mmu_psize_defaults_gp));
@@ -364,7 +365,7 @@ static int __init htab_dt_scan_pftsize(unsigned long node,
364 365
365static unsigned long __init htab_get_table_size(void) 366static unsigned long __init htab_get_table_size(void)
366{ 367{
367 unsigned long rnd_mem_size, pteg_count; 368 unsigned long mem_size, rnd_mem_size, pteg_count;
368 369
369 /* If hash size isn't already provided by the platform, we try to 370 /* If hash size isn't already provided by the platform, we try to
370 * retreive it from the device-tree. If it's not there neither, we 371 * retreive it from the device-tree. If it's not there neither, we
@@ -376,8 +377,9 @@ static unsigned long __init htab_get_table_size(void)
376 return 1UL << ppc64_pft_size; 377 return 1UL << ppc64_pft_size;
377 378
378 /* round mem_size up to next power of 2 */ 379 /* round mem_size up to next power of 2 */
379 rnd_mem_size = 1UL << __ilog2(systemcfg->physicalMemorySize); 380 mem_size = lmb_phys_mem_size();
380 if (rnd_mem_size < systemcfg->physicalMemorySize) 381 rnd_mem_size = 1UL << __ilog2(mem_size);
382 if (rnd_mem_size < mem_size)
381 rnd_mem_size <<= 1; 383 rnd_mem_size <<= 1;
382 384
383 /* # pages / 2 */ 385 /* # pages / 2 */
@@ -386,6 +388,15 @@ static unsigned long __init htab_get_table_size(void)
386 return pteg_count << 7; 388 return pteg_count << 7;
387} 389}
388 390
391#ifdef CONFIG_MEMORY_HOTPLUG
392void create_section_mapping(unsigned long start, unsigned long end)
393{
394 BUG_ON(htab_bolt_mapping(start, end, start,
395 _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX,
396 mmu_linear_psize));
397}
398#endif /* CONFIG_MEMORY_HOTPLUG */
399
389void __init htab_initialize(void) 400void __init htab_initialize(void)
390{ 401{
391 unsigned long table, htab_size_bytes; 402 unsigned long table, htab_size_bytes;
@@ -410,7 +421,7 @@ void __init htab_initialize(void)
410 421
411 htab_hash_mask = pteg_count - 1; 422 htab_hash_mask = pteg_count - 1;
412 423
413 if (systemcfg->platform & PLATFORM_LPAR) { 424 if (platform_is_lpar()) {
414 /* Using a hypervisor which owns the htab */ 425 /* Using a hypervisor which owns the htab */
415 htab_address = NULL; 426 htab_address = NULL;
416 _SDR1 = 0; 427 _SDR1 = 0;
@@ -431,6 +442,9 @@ void __init htab_initialize(void)
431 442
432 /* Initialize the HPT with no entries */ 443 /* Initialize the HPT with no entries */
433 memset((void *)table, 0, htab_size_bytes); 444 memset((void *)table, 0, htab_size_bytes);
445
446 /* Set SDR1 */
447 mtspr(SPRN_SDR1, _SDR1);
434 } 448 }
435 449
436 mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; 450 mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX;
@@ -500,6 +514,12 @@ void __init htab_initialize(void)
500#undef KB 514#undef KB
501#undef MB 515#undef MB
502 516
517void __init htab_initialize_secondary(void)
518{
519 if (!platform_is_lpar())
520 mtspr(SPRN_SDR1, _SDR1);
521}
522
503/* 523/*
504 * Called by asm hashtable.S for doing lazy icache flush 524 * Called by asm hashtable.S for doing lazy icache flush
505 */ 525 */
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index 4612a79dfb6e..7d4b8b5f0606 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -84,9 +84,6 @@ void MMU_init(void);
84/* XXX should be in current.h -- paulus */ 84/* XXX should be in current.h -- paulus */
85extern struct task_struct *current_set[NR_CPUS]; 85extern struct task_struct *current_set[NR_CPUS];
86 86
87char *klimit = _end;
88struct device_node *memory_node;
89
90extern int init_bootmem_done; 87extern int init_bootmem_done;
91 88
92/* 89/*
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index ce974c83d88a..1134f70f231d 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -20,6 +20,8 @@
20 * 20 *
21 */ 21 */
22 22
23#undef DEBUG
24
23#include <linux/config.h> 25#include <linux/config.h>
24#include <linux/signal.h> 26#include <linux/signal.h>
25#include <linux/sched.h> 27#include <linux/sched.h>
@@ -64,6 +66,12 @@
64#include <asm/vdso.h> 66#include <asm/vdso.h>
65#include <asm/imalloc.h> 67#include <asm/imalloc.h>
66 68
69#ifdef DEBUG
70#define DBG(fmt...) printk(fmt)
71#else
72#define DBG(fmt...)
73#endif
74
67#if PGTABLE_RANGE > USER_VSID_RANGE 75#if PGTABLE_RANGE > USER_VSID_RANGE
68#warning Limited user VSID range means pagetable space is wasted 76#warning Limited user VSID range means pagetable space is wasted
69#endif 77#endif
@@ -72,8 +80,6 @@
72#warning TASK_SIZE is smaller than it needs to be. 80#warning TASK_SIZE is smaller than it needs to be.
73#endif 81#endif
74 82
75unsigned long klimit = (unsigned long)_end;
76
77/* max amount of RAM to use */ 83/* max amount of RAM to use */
78unsigned long __max_memory; 84unsigned long __max_memory;
79 85
@@ -188,14 +194,14 @@ static void zero_ctor(void *addr, kmem_cache_t *cache, unsigned long flags)
188} 194}
189 195
190#ifdef CONFIG_PPC_64K_PAGES 196#ifdef CONFIG_PPC_64K_PAGES
191static const int pgtable_cache_size[2] = { 197static const unsigned int pgtable_cache_size[3] = {
192 PTE_TABLE_SIZE, PGD_TABLE_SIZE 198 PTE_TABLE_SIZE, PMD_TABLE_SIZE, PGD_TABLE_SIZE
193}; 199};
194static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = { 200static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = {
195 "pte_pmd_cache", "pgd_cache", 201 "pte_pmd_cache", "pmd_cache", "pgd_cache",
196}; 202};
197#else 203#else
198static const int pgtable_cache_size[2] = { 204static const unsigned int pgtable_cache_size[2] = {
199 PTE_TABLE_SIZE, PMD_TABLE_SIZE 205 PTE_TABLE_SIZE, PMD_TABLE_SIZE
200}; 206};
201static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = { 207static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = {
@@ -213,6 +219,8 @@ void pgtable_cache_init(void)
213 int size = pgtable_cache_size[i]; 219 int size = pgtable_cache_size[i];
214 const char *name = pgtable_cache_name[i]; 220 const char *name = pgtable_cache_name[i];
215 221
222 DBG("Allocating page table cache %s (#%d) "
223 "for size: %08x...\n", name, i, size);
216 pgtable_cache[i] = kmem_cache_create(name, 224 pgtable_cache[i] = kmem_cache_create(name,
217 size, size, 225 size, size,
218 SLAB_HWCACHE_ALIGN | 226 SLAB_HWCACHE_ALIGN |
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 6f55efd9be95..1dd3cc69a490 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -110,6 +110,7 @@ EXPORT_SYMBOL(phys_mem_access_prot);
110void online_page(struct page *page) 110void online_page(struct page *page)
111{ 111{
112 ClearPageReserved(page); 112 ClearPageReserved(page);
113 set_page_count(page, 0);
113 free_cold_page(page); 114 free_cold_page(page);
114 totalram_pages++; 115 totalram_pages++;
115 num_physpages++; 116 num_physpages++;
@@ -127,6 +128,9 @@ int __devinit add_memory(u64 start, u64 size)
127 unsigned long start_pfn = start >> PAGE_SHIFT; 128 unsigned long start_pfn = start >> PAGE_SHIFT;
128 unsigned long nr_pages = size >> PAGE_SHIFT; 129 unsigned long nr_pages = size >> PAGE_SHIFT;
129 130
131 start += KERNELBASE;
132 create_section_mapping(start, start + size);
133
130 /* this should work for most non-highmem platforms */ 134 /* this should work for most non-highmem platforms */
131 zone = pgdata->node_zones; 135 zone = pgdata->node_zones;
132 136
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index 900842451bd3..c7f7bb6f30b3 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -122,8 +122,11 @@ static int map_io_page(unsigned long ea, unsigned long pa, int flags)
122 * 122 *
123 */ 123 */
124 if (htab_bolt_mapping(ea, ea + PAGE_SIZE, pa, flags, 124 if (htab_bolt_mapping(ea, ea + PAGE_SIZE, pa, flags,
125 mmu_virtual_psize)) 125 mmu_virtual_psize)) {
126 panic("Can't map bolted IO mapping"); 126 printk(KERN_ERR "Failed to do bolted mapping IO "
127 "memory at %016lx !\n", pa);
128 return -ENOMEM;
129 }
127 } 130 }
128 return 0; 131 return 0;
129} 132}
diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c
index fa325dbf98fc..cfbb4e1f966b 100644
--- a/arch/powerpc/mm/stab.c
+++ b/arch/powerpc/mm/stab.c
@@ -20,6 +20,7 @@
20#include <asm/cputable.h> 20#include <asm/cputable.h>
21#include <asm/lmb.h> 21#include <asm/lmb.h>
22#include <asm/abs_addr.h> 22#include <asm/abs_addr.h>
23#include <asm/firmware.h>
23 24
24struct stab_entry { 25struct stab_entry {
25 unsigned long esid_data; 26 unsigned long esid_data;
@@ -256,7 +257,7 @@ void stabs_alloc(void)
256 257
257 paca[cpu].stab_addr = newstab; 258 paca[cpu].stab_addr = newstab;
258 paca[cpu].stab_real = virt_to_abs(newstab); 259 paca[cpu].stab_real = virt_to_abs(newstab);
259 printk(KERN_DEBUG "Segment table for CPU %d at 0x%lx " 260 printk(KERN_INFO "Segment table for CPU %d at 0x%lx "
260 "virtual, 0x%lx absolute\n", 261 "virtual, 0x%lx absolute\n",
261 cpu, paca[cpu].stab_addr, paca[cpu].stab_real); 262 cpu, paca[cpu].stab_addr, paca[cpu].stab_real);
262 } 263 }
@@ -270,10 +271,28 @@ void stabs_alloc(void)
270void stab_initialize(unsigned long stab) 271void stab_initialize(unsigned long stab)
271{ 272{
272 unsigned long vsid = get_kernel_vsid(KERNELBASE); 273 unsigned long vsid = get_kernel_vsid(KERNELBASE);
274 unsigned long stabreal;
273 275
274 asm volatile("isync; slbia; isync":::"memory"); 276 asm volatile("isync; slbia; isync":::"memory");
275 make_ste(stab, GET_ESID(KERNELBASE), vsid); 277 make_ste(stab, GET_ESID(KERNELBASE), vsid);
276 278
277 /* Order update */ 279 /* Order update */
278 asm volatile("sync":::"memory"); 280 asm volatile("sync":::"memory");
281
282 /* Set ASR */
283 stabreal = get_paca()->stab_real | 0x1ul;
284
285#ifdef CONFIG_PPC_ISERIES
286 if (firmware_has_feature(FW_FEATURE_ISERIES)) {
287 HvCall1(HvCallBaseSetASR, stabreal);
288 return;
289 }
290#endif /* CONFIG_PPC_ISERIES */
291#ifdef CONFIG_PPC_PSERIES
292 if (platform_is_lpar()) {
293 plpar_hcall_norets(H_SET_ASR, stabreal);
294 return;
295 }
296#endif
297 mtspr(SPRN_ASR, stabreal);
279} 298}
diff --git a/arch/powerpc/oprofile/op_model_power4.c b/arch/powerpc/oprofile/op_model_power4.c
index c4ee5478427b..e3a024e324b6 100644
--- a/arch/powerpc/oprofile/op_model_power4.c
+++ b/arch/powerpc/oprofile/op_model_power4.c
@@ -233,8 +233,7 @@ static unsigned long get_pc(struct pt_regs *regs)
233 mmcra = mfspr(SPRN_MMCRA); 233 mmcra = mfspr(SPRN_MMCRA);
234 234
235 /* Were we in the hypervisor? */ 235 /* Were we in the hypervisor? */
236 if ((systemcfg->platform == PLATFORM_PSERIES_LPAR) && 236 if (platform_is_lpar() && (mmcra & MMCRA_SIHV))
237 (mmcra & MMCRA_SIHV))
238 /* function descriptor madness */ 237 /* function descriptor madness */
239 return *((unsigned long *)hypervisor_bucket); 238 return *((unsigned long *)hypervisor_bucket);
240 239
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index ecd32d5d85f4..4099ddab9205 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -361,7 +361,9 @@ static void __init chrp_find_openpic(void)
361 printk(KERN_INFO "OpenPIC at %lx\n", opaddr); 361 printk(KERN_INFO "OpenPIC at %lx\n", opaddr);
362 362
363 irq_count = NR_IRQS - NUM_ISA_INTERRUPTS - 4; /* leave room for IPIs */ 363 irq_count = NR_IRQS - NUM_ISA_INTERRUPTS - 4; /* leave room for IPIs */
364 prom_get_irq_senses(init_senses, NUM_8259_INTERRUPTS, NR_IRQS - 4); 364 prom_get_irq_senses(init_senses, NUM_ISA_INTERRUPTS, NR_IRQS - 4);
365 /* i8259 cascade is always positive level */
366 init_senses[0] = IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE;
365 367
366 iranges = (unsigned int *) get_property(np, "interrupt-ranges", &len); 368 iranges = (unsigned int *) get_property(np, "interrupt-ranges", &len);
367 if (iranges == NULL) 369 if (iranges == NULL)
diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c
index a06603d84a45..01090e9ce0cf 100644
--- a/arch/powerpc/platforms/iseries/irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -103,6 +103,9 @@ static void intReceived(struct XmPciLpEvent *eventParm,
103 struct pt_regs *regsParm) 103 struct pt_regs *regsParm)
104{ 104{
105 int irq; 105 int irq;
106#ifdef CONFIG_IRQSTACKS
107 struct thread_info *curtp, *irqtp;
108#endif
106 109
107 ++Pci_Interrupt_Count; 110 ++Pci_Interrupt_Count;
108 111
@@ -110,7 +113,20 @@ static void intReceived(struct XmPciLpEvent *eventParm,
110 case XmPciLpEvent_SlotInterrupt: 113 case XmPciLpEvent_SlotInterrupt:
111 irq = eventParm->hvLpEvent.xCorrelationToken; 114 irq = eventParm->hvLpEvent.xCorrelationToken;
112 /* Dispatch the interrupt handlers for this irq */ 115 /* Dispatch the interrupt handlers for this irq */
113 ppc_irq_dispatch_handler(regsParm, irq); 116#ifdef CONFIG_IRQSTACKS
117 /* Switch to the irq stack to handle this */
118 curtp = current_thread_info();
119 irqtp = hardirq_ctx[smp_processor_id()];
120 if (curtp != irqtp) {
121 irqtp->task = curtp->task;
122 irqtp->flags = 0;
123 call___do_IRQ(irq, regsParm, irqtp);
124 irqtp->task = NULL;
125 if (irqtp->flags)
126 set_bits(irqtp->flags, &curtp->flags);
127 } else
128#endif
129 __do_IRQ(irq, regsParm);
114 HvCallPci_eoi(eventParm->eventData.slotInterrupt.busNumber, 130 HvCallPci_eoi(eventParm->eventData.slotInterrupt.busNumber,
115 eventParm->eventData.slotInterrupt.subBusNumber, 131 eventParm->eventData.slotInterrupt.subBusNumber,
116 eventParm->eventData.slotInterrupt.deviceId); 132 eventParm->eventData.slotInterrupt.deviceId);
@@ -310,10 +326,8 @@ static void iSeries_disable_IRQ(unsigned int irq)
310} 326}
311 327
312/* 328/*
313 * Need to define this so ppc_irq_dispatch_handler will NOT call 329 * This does nothing because there is not enough information
314 * enable_IRQ at the end of interrupt handling. However, this does 330 * provided to do the EOI HvCall. This is done by XmPciLpEvent.c
315 * nothing because there is not enough information provided to do
316 * the EOI HvCall. This is done by XmPciLpEvent.c
317 */ 331 */
318static void iSeries_end_IRQ(unsigned int irq) 332static void iSeries_end_IRQ(unsigned int irq)
319{ 333{
diff --git a/arch/powerpc/platforms/iseries/misc.S b/arch/powerpc/platforms/iseries/misc.S
index 09f14522e176..dfe7aa1ba098 100644
--- a/arch/powerpc/platforms/iseries/misc.S
+++ b/arch/powerpc/platforms/iseries/misc.S
@@ -15,6 +15,7 @@
15 15
16#include <asm/processor.h> 16#include <asm/processor.h>
17#include <asm/asm-offsets.h> 17#include <asm/asm-offsets.h>
18#include <asm/ppc_asm.h>
18 19
19 .text 20 .text
20 21
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index 7f8f0cda6a74..6a29f301436b 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -39,7 +39,8 @@
39#include <asm/sections.h> 39#include <asm/sections.h>
40#include <asm/iommu.h> 40#include <asm/iommu.h>
41#include <asm/firmware.h> 41#include <asm/firmware.h>
42 42#include <asm/systemcfg.h>
43#include <asm/system.h>
43#include <asm/time.h> 44#include <asm/time.h>
44#include <asm/paca.h> 45#include <asm/paca.h>
45#include <asm/cache.h> 46#include <asm/cache.h>
@@ -71,7 +72,7 @@ extern void hvlog(char *fmt, ...);
71#endif 72#endif
72 73
73/* Function Prototypes */ 74/* Function Prototypes */
74static void build_iSeries_Memory_Map(void); 75static unsigned long build_iSeries_Memory_Map(void);
75static void iseries_shared_idle(void); 76static void iseries_shared_idle(void);
76static void iseries_dedicated_idle(void); 77static void iseries_dedicated_idle(void);
77#ifdef CONFIG_PCI 78#ifdef CONFIG_PCI
@@ -84,7 +85,6 @@ static void iSeries_pci_final_fixup(void) { }
84int piranha_simulator; 85int piranha_simulator;
85 86
86extern int rd_size; /* Defined in drivers/block/rd.c */ 87extern int rd_size; /* Defined in drivers/block/rd.c */
87extern unsigned long klimit;
88extern unsigned long embedded_sysmap_start; 88extern unsigned long embedded_sysmap_start;
89extern unsigned long embedded_sysmap_end; 89extern unsigned long embedded_sysmap_end;
90 90
@@ -403,9 +403,11 @@ void mschunks_alloc(unsigned long num_chunks)
403 * a table used to translate Linux's physical addresses to these 403 * a table used to translate Linux's physical addresses to these
404 * absolute addresses. Absolute addresses are needed when 404 * absolute addresses. Absolute addresses are needed when
405 * communicating with the hypervisor (e.g. to build HPT entries) 405 * communicating with the hypervisor (e.g. to build HPT entries)
406 *
407 * Returns the physical memory size
406 */ 408 */
407 409
408static void __init build_iSeries_Memory_Map(void) 410static unsigned long __init build_iSeries_Memory_Map(void)
409{ 411{
410 u32 loadAreaFirstChunk, loadAreaLastChunk, loadAreaSize; 412 u32 loadAreaFirstChunk, loadAreaLastChunk, loadAreaSize;
411 u32 nextPhysChunk; 413 u32 nextPhysChunk;
@@ -538,7 +540,7 @@ static void __init build_iSeries_Memory_Map(void)
538 * which should be equal to 540 * which should be equal to
539 * nextPhysChunk 541 * nextPhysChunk
540 */ 542 */
541 systemcfg->physicalMemorySize = chunk_to_addr(nextPhysChunk); 543 return chunk_to_addr(nextPhysChunk);
542} 544}
543 545
544/* 546/*
@@ -564,8 +566,8 @@ static void __init iSeries_setup_arch(void)
564 printk("Max physical processors = %d\n", 566 printk("Max physical processors = %d\n",
565 itVpdAreas.xSlicMaxPhysicalProcs); 567 itVpdAreas.xSlicMaxPhysicalProcs);
566 568
567 systemcfg->processor = xIoHriProcessorVpd[procIx].xPVR; 569 _systemcfg->processor = xIoHriProcessorVpd[procIx].xPVR;
568 printk("Processor version = %x\n", systemcfg->processor); 570 printk("Processor version = %x\n", _systemcfg->processor);
569} 571}
570 572
571static void iSeries_show_cpuinfo(struct seq_file *m) 573static void iSeries_show_cpuinfo(struct seq_file *m)
@@ -702,7 +704,6 @@ static void iseries_shared_idle(void)
702 704
703static void iseries_dedicated_idle(void) 705static void iseries_dedicated_idle(void)
704{ 706{
705 long oldval;
706 set_thread_flag(TIF_POLLING_NRFLAG); 707 set_thread_flag(TIF_POLLING_NRFLAG);
707 708
708 while (1) { 709 while (1) {
@@ -929,7 +930,7 @@ void dt_cpus(struct iseries_flat_dt *dt)
929 dt_end_node(dt); 930 dt_end_node(dt);
930} 931}
931 932
932void build_flat_dt(struct iseries_flat_dt *dt) 933void build_flat_dt(struct iseries_flat_dt *dt, unsigned long phys_mem_size)
933{ 934{
934 u64 tmp[2]; 935 u64 tmp[2];
935 936
@@ -945,7 +946,7 @@ void build_flat_dt(struct iseries_flat_dt *dt)
945 dt_prop_str(dt, "name", "memory"); 946 dt_prop_str(dt, "name", "memory");
946 dt_prop_str(dt, "device_type", "memory"); 947 dt_prop_str(dt, "device_type", "memory");
947 tmp[0] = 0; 948 tmp[0] = 0;
948 tmp[1] = systemcfg->physicalMemorySize; 949 tmp[1] = phys_mem_size;
949 dt_prop_u64_list(dt, "reg", tmp, 2); 950 dt_prop_u64_list(dt, "reg", tmp, 2);
950 dt_end_node(dt); 951 dt_end_node(dt);
951 952
@@ -965,13 +966,15 @@ void build_flat_dt(struct iseries_flat_dt *dt)
965 966
966void * __init iSeries_early_setup(void) 967void * __init iSeries_early_setup(void)
967{ 968{
969 unsigned long phys_mem_size;
970
968 iSeries_fixup_klimit(); 971 iSeries_fixup_klimit();
969 972
970 /* 973 /*
971 * Initialize the table which translate Linux physical addresses to 974 * Initialize the table which translate Linux physical addresses to
972 * AS/400 absolute addresses 975 * AS/400 absolute addresses
973 */ 976 */
974 build_iSeries_Memory_Map(); 977 phys_mem_size = build_iSeries_Memory_Map();
975 978
976 iSeries_get_cmdline(); 979 iSeries_get_cmdline();
977 980
@@ -981,7 +984,7 @@ void * __init iSeries_early_setup(void)
981 /* Parse early parameters, in particular mem=x */ 984 /* Parse early parameters, in particular mem=x */
982 parse_early_param(); 985 parse_early_param();
983 986
984 build_flat_dt(&iseries_dt); 987 build_flat_dt(&iseries_dt, phys_mem_size);
985 988
986 return (void *) __pa(&iseries_dt); 989 return (void *) __pa(&iseries_dt);
987} 990}
diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index 340c21caeae2..895aeb3f75d0 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -380,9 +380,6 @@ void __init maple_pcibios_fixup(void)
380 for_each_pci_dev(dev) 380 for_each_pci_dev(dev)
381 pci_read_irq_line(dev); 381 pci_read_irq_line(dev);
382 382
383 /* Do the mapping of the IO space */
384 phbs_remap_io();
385
386 DBG(" <- maple_pcibios_fixup\n"); 383 DBG(" <- maple_pcibios_fixup\n");
387} 384}
388 385
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 8f818d092e2b..dfd41b9781a9 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -918,9 +918,6 @@ void __init pmac_pci_init(void)
918 PCI_DN(np)->busno = 0xf0; 918 PCI_DN(np)->busno = 0xf0;
919 } 919 }
920 920
921 /* map in PCI I/O space */
922 phbs_remap_io();
923
924 /* pmac_check_ht_link(); */ 921 /* pmac_check_ht_link(); */
925 922
926 /* Tell pci.c to not use the common resource allocation mechanism */ 923 /* Tell pci.c to not use the common resource allocation mechanism */
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 83a49e80ac29..90040c49494d 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -74,6 +74,9 @@ static DEFINE_SPINLOCK(pmac_pic_lock);
74#define GATWICK_IRQ_POOL_SIZE 10 74#define GATWICK_IRQ_POOL_SIZE 10
75static struct interrupt_info gatwick_int_pool[GATWICK_IRQ_POOL_SIZE]; 75static struct interrupt_info gatwick_int_pool[GATWICK_IRQ_POOL_SIZE];
76 76
77#define NR_MASK_WORDS ((NR_IRQS + 31) / 32)
78static unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
79
77/* 80/*
78 * Mark an irq as "lost". This is only used on the pmac 81 * Mark an irq as "lost". This is only used on the pmac
79 * since it can lose interrupts (see pmac_set_irq_mask). 82 * since it can lose interrupts (see pmac_set_irq_mask).
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index e1f9443cc872..957b09103422 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -305,9 +305,19 @@ static int __init smp_psurge_probe(void)
305 psurge_start = ioremap(PSURGE_START, 4); 305 psurge_start = ioremap(PSURGE_START, 4);
306 psurge_pri_intr = ioremap(PSURGE_PRI_INTR, 4); 306 psurge_pri_intr = ioremap(PSURGE_PRI_INTR, 4);
307 307
308 /* this is not actually strictly necessary -- paulus. */ 308 /*
309 for (i = 1; i < ncpus; ++i) 309 * This is necessary because OF doesn't know about the
310 smp_hw_index[i] = i; 310 * secondary cpu(s), and thus there aren't nodes in the
311 * device tree for them, and smp_setup_cpu_maps hasn't
312 * set their bits in cpu_possible_map and cpu_present_map.
313 */
314 if (ncpus > NR_CPUS)
315 ncpus = NR_CPUS;
316 for (i = 1; i < ncpus ; ++i) {
317 cpu_set(i, cpu_present_map);
318 cpu_set(i, cpu_possible_map);
319 set_hard_smp_processor_id(i, i);
320 }
311 321
312 if (ppc_md.progress) ppc_md.progress("smp_psurge_probe - done", 0x352); 322 if (ppc_md.progress) ppc_md.progress("smp_psurge_probe - done", 0x352);
313 323
@@ -348,6 +358,7 @@ static void __init psurge_dual_sync_tb(int cpu_nr)
348 int t; 358 int t;
349 359
350 set_dec(tb_ticks_per_jiffy); 360 set_dec(tb_ticks_per_jiffy);
361 /* XXX fixme */
351 set_tb(0, 0); 362 set_tb(0, 0);
352 last_jiffy_stamp(cpu_nr) = 0; 363 last_jiffy_stamp(cpu_nr) = 0;
353 364
@@ -363,8 +374,6 @@ static void __init psurge_dual_sync_tb(int cpu_nr)
363 374
364 /* now interrupt the secondary, starting both TBs */ 375 /* now interrupt the secondary, starting both TBs */
365 psurge_set_ipi(1); 376 psurge_set_ipi(1);
366
367 smp_tb_synchronized = 1;
368} 377}
369 378
370static struct irqaction psurge_irqaction = { 379static struct irqaction psurge_irqaction = {
@@ -625,9 +634,8 @@ void smp_core99_give_timebase(void)
625 for (t = 100000; t > 0 && sec_tb_reset; --t) 634 for (t = 100000; t > 0 && sec_tb_reset; --t)
626 udelay(10); 635 udelay(10);
627 if (sec_tb_reset) 636 if (sec_tb_reset)
637 /* XXX BUG_ON here? */
628 printk(KERN_WARNING "Timeout waiting sync(2) on second CPU\n"); 638 printk(KERN_WARNING "Timeout waiting sync(2) on second CPU\n");
629 else
630 smp_tb_synchronized = 1;
631 639
632 /* Now, restart the timebase by leaving the GPIO to an open collector */ 640 /* Now, restart the timebase by leaving the GPIO to an open collector */
633 pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, core99_tb_gpio, 0); 641 pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, core99_tb_gpio, 0);
@@ -810,19 +818,9 @@ static void __devinit smp_core99_setup_cpu(int cpu_nr)
810} 818}
811 819
812 820
813/* Core99 Macs (dual G4s and G5s) */
814struct smp_ops_t core99_smp_ops = {
815 .message_pass = smp_mpic_message_pass,
816 .probe = smp_core99_probe,
817 .kick_cpu = smp_core99_kick_cpu,
818 .setup_cpu = smp_core99_setup_cpu,
819 .give_timebase = smp_core99_give_timebase,
820 .take_timebase = smp_core99_take_timebase,
821};
822
823#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32) 821#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32)
824 822
825int __cpu_disable(void) 823int smp_core99_cpu_disable(void)
826{ 824{
827 cpu_clear(smp_processor_id(), cpu_online_map); 825 cpu_clear(smp_processor_id(), cpu_online_map);
828 826
@@ -846,7 +844,7 @@ void cpu_die(void)
846 low_cpu_die(); 844 low_cpu_die();
847} 845}
848 846
849void __cpu_die(unsigned int cpu) 847void smp_core99_cpu_die(unsigned int cpu)
850{ 848{
851 int timeout; 849 int timeout;
852 850
@@ -858,8 +856,21 @@ void __cpu_die(unsigned int cpu)
858 } 856 }
859 msleep(1); 857 msleep(1);
860 } 858 }
861 cpu_callin_map[cpu] = 0;
862 cpu_dead[cpu] = 0; 859 cpu_dead[cpu] = 0;
863} 860}
864 861
865#endif 862#endif
863
864/* Core99 Macs (dual G4s and G5s) */
865struct smp_ops_t core99_smp_ops = {
866 .message_pass = smp_mpic_message_pass,
867 .probe = smp_core99_probe,
868 .kick_cpu = smp_core99_kick_cpu,
869 .setup_cpu = smp_core99_setup_cpu,
870 .give_timebase = smp_core99_give_timebase,
871 .take_timebase = smp_core99_take_timebase,
872#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32)
873 .cpu_disable = smp_core99_cpu_disable,
874 .cpu_die = smp_core99_cpu_die,
875#endif
876};
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index b9938fece781..e7ca5b1f591e 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -3,3 +3,5 @@ obj-y := pci.o lpar.o hvCall.o nvram.o reconfig.o \
3obj-$(CONFIG_SMP) += smp.o 3obj-$(CONFIG_SMP) += smp.o
4obj-$(CONFIG_IBMVIO) += vio.o 4obj-$(CONFIG_IBMVIO) += vio.o
5obj-$(CONFIG_XICS) += xics.o 5obj-$(CONFIG_XICS) += xics.o
6obj-$(CONFIG_SCANLOG) += scanlog.o
7obj-$(CONFIG_EEH) += eeh.o eeh_event.o
diff --git a/arch/ppc64/kernel/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 035d1b14a207..79de2310e70b 100644
--- a/arch/ppc64/kernel/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -1,39 +1,37 @@
1/* 1/*
2 * eeh.c 2 * eeh.c
3 * Copyright (C) 2001 Dave Engebretsen & Todd Inglett IBM Corporation 3 * Copyright (C) 2001 Dave Engebretsen & Todd Inglett IBM Corporation
4 * 4 *
5 * This program is free software; you can redistribute it and/or modify 5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by 6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or 7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version. 8 * (at your option) any later version.
9 * 9 *
10 * This program is distributed in the hope that it will be useful, 10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details. 13 * GNU General Public License for more details.
14 * 14 *
15 * You should have received a copy of the GNU General Public License 15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software 16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */ 18 */
19 19
20#include <linux/bootmem.h> 20#include <linux/delay.h>
21#include <linux/init.h> 21#include <linux/init.h>
22#include <linux/list.h> 22#include <linux/list.h>
23#include <linux/mm.h>
24#include <linux/notifier.h>
25#include <linux/pci.h> 23#include <linux/pci.h>
26#include <linux/proc_fs.h> 24#include <linux/proc_fs.h>
27#include <linux/rbtree.h> 25#include <linux/rbtree.h>
28#include <linux/seq_file.h> 26#include <linux/seq_file.h>
29#include <linux/spinlock.h> 27#include <linux/spinlock.h>
28#include <asm/atomic.h>
30#include <asm/eeh.h> 29#include <asm/eeh.h>
30#include <asm/eeh_event.h>
31#include <asm/io.h> 31#include <asm/io.h>
32#include <asm/machdep.h> 32#include <asm/machdep.h>
33#include <asm/rtas.h>
34#include <asm/atomic.h>
35#include <asm/systemcfg.h>
36#include <asm/ppc-pci.h> 33#include <asm/ppc-pci.h>
34#include <asm/rtas.h>
37 35
38#undef DEBUG 36#undef DEBUG
39 37
@@ -49,8 +47,8 @@
49 * were "empty": all reads return 0xff's and all writes are silently 47 * were "empty": all reads return 0xff's and all writes are silently
50 * ignored. EEH slot isolation events can be triggered by parity 48 * ignored. EEH slot isolation events can be triggered by parity
51 * errors on the address or data busses (e.g. during posted writes), 49 * errors on the address or data busses (e.g. during posted writes),
52 * which in turn might be caused by dust, vibration, humidity, 50 * which in turn might be caused by low voltage on the bus, dust,
53 * radioactivity or plain-old failed hardware. 51 * vibration, humidity, radioactivity or plain-old failed hardware.
54 * 52 *
55 * Note, however, that one of the leading causes of EEH slot 53 * Note, however, that one of the leading causes of EEH slot
56 * freeze events are buggy device drivers, buggy device microcode, 54 * freeze events are buggy device drivers, buggy device microcode,
@@ -71,26 +69,15 @@
71 * and sent out for processing. 69 * and sent out for processing.
72 */ 70 */
73 71
74/** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */ 72/* If a device driver keeps reading an MMIO register in an interrupt
75#define BUID_HI(buid) ((buid) >> 32)
76#define BUID_LO(buid) ((buid) & 0xffffffff)
77
78/* EEH event workqueue setup. */
79static DEFINE_SPINLOCK(eeh_eventlist_lock);
80LIST_HEAD(eeh_eventlist);
81static void eeh_event_handler(void *);
82DECLARE_WORK(eeh_event_wq, eeh_event_handler, NULL);
83
84static struct notifier_block *eeh_notifier_chain;
85
86/*
87 * If a device driver keeps reading an MMIO register in an interrupt
88 * handler after a slot isolation event has occurred, we assume it 73 * handler after a slot isolation event has occurred, we assume it
89 * is broken and panic. This sets the threshold for how many read 74 * is broken and panic. This sets the threshold for how many read
90 * attempts we allow before panicking. 75 * attempts we allow before panicking.
91 */ 76 */
92#define EEH_MAX_FAILS 1000 77#define EEH_MAX_FAILS 100000
93static atomic_t eeh_fail_count; 78
79/* Misc forward declaraions */
80static void eeh_save_bars(struct pci_dev * pdev, struct pci_dn *pdn);
94 81
95/* RTAS tokens */ 82/* RTAS tokens */
96static int ibm_set_eeh_option; 83static int ibm_set_eeh_option;
@@ -101,12 +88,19 @@ static int ibm_slot_error_detail;
101 88
102static int eeh_subsystem_enabled; 89static int eeh_subsystem_enabled;
103 90
91/* Lock to avoid races due to multiple reports of an error */
92static DEFINE_SPINLOCK(confirm_error_lock);
93
104/* Buffer for reporting slot-error-detail rtas calls */ 94/* Buffer for reporting slot-error-detail rtas calls */
105static unsigned char slot_errbuf[RTAS_ERROR_LOG_MAX]; 95static unsigned char slot_errbuf[RTAS_ERROR_LOG_MAX];
106static DEFINE_SPINLOCK(slot_errbuf_lock); 96static DEFINE_SPINLOCK(slot_errbuf_lock);
107static int eeh_error_buf_size; 97static int eeh_error_buf_size;
108 98
109/* System monitoring statistics */ 99/* System monitoring statistics */
100static DEFINE_PER_CPU(unsigned long, no_device);
101static DEFINE_PER_CPU(unsigned long, no_dn);
102static DEFINE_PER_CPU(unsigned long, no_cfg_addr);
103static DEFINE_PER_CPU(unsigned long, ignored_check);
110static DEFINE_PER_CPU(unsigned long, total_mmio_ffs); 104static DEFINE_PER_CPU(unsigned long, total_mmio_ffs);
111static DEFINE_PER_CPU(unsigned long, false_positives); 105static DEFINE_PER_CPU(unsigned long, false_positives);
112static DEFINE_PER_CPU(unsigned long, ignored_failures); 106static DEFINE_PER_CPU(unsigned long, ignored_failures);
@@ -224,9 +218,9 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
224 while (*p) { 218 while (*p) {
225 parent = *p; 219 parent = *p;
226 piar = rb_entry(parent, struct pci_io_addr_range, rb_node); 220 piar = rb_entry(parent, struct pci_io_addr_range, rb_node);
227 if (alo < piar->addr_lo) { 221 if (ahi < piar->addr_lo) {
228 p = &parent->rb_left; 222 p = &parent->rb_left;
229 } else if (ahi > piar->addr_hi) { 223 } else if (alo > piar->addr_hi) {
230 p = &parent->rb_right; 224 p = &parent->rb_right;
231 } else { 225 } else {
232 if (dev != piar->pcidev || 226 if (dev != piar->pcidev ||
@@ -245,6 +239,11 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
245 piar->pcidev = dev; 239 piar->pcidev = dev;
246 piar->flags = flags; 240 piar->flags = flags;
247 241
242#ifdef DEBUG
243 printk(KERN_DEBUG "PIAR: insert range=[%lx:%lx] dev=%s\n",
244 alo, ahi, pci_name (dev));
245#endif
246
248 rb_link_node(&piar->rb_node, parent, p); 247 rb_link_node(&piar->rb_node, parent, p);
249 rb_insert_color(&piar->rb_node, &pci_io_addr_cache_root.rb_root); 248 rb_insert_color(&piar->rb_node, &pci_io_addr_cache_root.rb_root);
250 249
@@ -260,18 +259,17 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev)
260 259
261 dn = pci_device_to_OF_node(dev); 260 dn = pci_device_to_OF_node(dev);
262 if (!dn) { 261 if (!dn) {
263 printk(KERN_WARNING "PCI: no pci dn found for dev=%s\n", 262 printk(KERN_WARNING "PCI: no pci dn found for dev=%s\n", pci_name(dev));
264 pci_name(dev));
265 return; 263 return;
266 } 264 }
267 265
268 /* Skip any devices for which EEH is not enabled. */ 266 /* Skip any devices for which EEH is not enabled. */
269 pdn = dn->data; 267 pdn = PCI_DN(dn);
270 if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) || 268 if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) ||
271 pdn->eeh_mode & EEH_MODE_NOCHECK) { 269 pdn->eeh_mode & EEH_MODE_NOCHECK) {
272#ifdef DEBUG 270#ifdef DEBUG
273 printk(KERN_INFO "PCI: skip building address cache for=%s\n", 271 printk(KERN_INFO "PCI: skip building address cache for=%s - %s\n",
274 pci_name(dev)); 272 pci_name(dev), pdn->node->full_name);
275#endif 273#endif
276 return; 274 return;
277 } 275 }
@@ -307,7 +305,7 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev)
307 * we maintain a cache of devices that can be quickly searched. 305 * we maintain a cache of devices that can be quickly searched.
308 * This routine adds a device to that cache. 306 * This routine adds a device to that cache.
309 */ 307 */
310void pci_addr_cache_insert_device(struct pci_dev *dev) 308static void pci_addr_cache_insert_device(struct pci_dev *dev)
311{ 309{
312 unsigned long flags; 310 unsigned long flags;
313 311
@@ -350,7 +348,7 @@ restart:
350 * the tree multiple times (once per resource). 348 * the tree multiple times (once per resource).
351 * But so what; device removal doesn't need to be that fast. 349 * But so what; device removal doesn't need to be that fast.
352 */ 350 */
353void pci_addr_cache_remove_device(struct pci_dev *dev) 351static void pci_addr_cache_remove_device(struct pci_dev *dev)
354{ 352{
355 unsigned long flags; 353 unsigned long flags;
356 354
@@ -370,8 +368,12 @@ void pci_addr_cache_remove_device(struct pci_dev *dev)
370 */ 368 */
371void __init pci_addr_cache_build(void) 369void __init pci_addr_cache_build(void)
372{ 370{
371 struct device_node *dn;
373 struct pci_dev *dev = NULL; 372 struct pci_dev *dev = NULL;
374 373
374 if (!eeh_subsystem_enabled)
375 return;
376
375 spin_lock_init(&pci_io_addr_cache_root.piar_lock); 377 spin_lock_init(&pci_io_addr_cache_root.piar_lock);
376 378
377 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { 379 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
@@ -380,6 +382,10 @@ void __init pci_addr_cache_build(void)
380 continue; 382 continue;
381 } 383 }
382 pci_addr_cache_insert_device(dev); 384 pci_addr_cache_insert_device(dev);
385
386 /* Save the BAR's; firmware doesn't restore these after EEH reset */
387 dn = pci_device_to_OF_node(dev);
388 eeh_save_bars(dev, PCI_DN(dn));
383 } 389 }
384 390
385#ifdef DEBUG 391#ifdef DEBUG
@@ -391,22 +397,26 @@ void __init pci_addr_cache_build(void)
391/* --------------------------------------------------------------- */ 397/* --------------------------------------------------------------- */
392/* Above lies the PCI Address Cache. Below lies the EEH event infrastructure */ 398/* Above lies the PCI Address Cache. Below lies the EEH event infrastructure */
393 399
394/** 400void eeh_slot_error_detail (struct pci_dn *pdn, int severity)
395 * eeh_register_notifier - Register to find out about EEH events.
396 * @nb: notifier block to callback on events
397 */
398int eeh_register_notifier(struct notifier_block *nb)
399{ 401{
400 return notifier_chain_register(&eeh_notifier_chain, nb); 402 unsigned long flags;
401} 403 int rc;
402 404
403/** 405 /* Log the error with the rtas logger */
404 * eeh_unregister_notifier - Unregister to an EEH event notifier. 406 spin_lock_irqsave(&slot_errbuf_lock, flags);
405 * @nb: notifier block to callback on events 407 memset(slot_errbuf, 0, eeh_error_buf_size);
406 */ 408
407int eeh_unregister_notifier(struct notifier_block *nb) 409 rc = rtas_call(ibm_slot_error_detail,
408{ 410 8, 1, NULL, pdn->eeh_config_addr,
409 return notifier_chain_unregister(&eeh_notifier_chain, nb); 411 BUID_HI(pdn->phb->buid),
412 BUID_LO(pdn->phb->buid), NULL, 0,
413 virt_to_phys(slot_errbuf),
414 eeh_error_buf_size,
415 severity);
416
417 if (rc == 0)
418 log_error(slot_errbuf, ERR_TYPE_RTAS_LOG, 0);
419 spin_unlock_irqrestore(&slot_errbuf_lock, flags);
410} 420}
411 421
412/** 422/**
@@ -414,16 +424,16 @@ int eeh_unregister_notifier(struct notifier_block *nb)
414 * @dn: device node to read 424 * @dn: device node to read
415 * @rets: array to return results in 425 * @rets: array to return results in
416 */ 426 */
417static int read_slot_reset_state(struct device_node *dn, int rets[]) 427static int read_slot_reset_state(struct pci_dn *pdn, int rets[])
418{ 428{
419 int token, outputs; 429 int token, outputs;
420 struct pci_dn *pdn = dn->data;
421 430
422 if (ibm_read_slot_reset_state2 != RTAS_UNKNOWN_SERVICE) { 431 if (ibm_read_slot_reset_state2 != RTAS_UNKNOWN_SERVICE) {
423 token = ibm_read_slot_reset_state2; 432 token = ibm_read_slot_reset_state2;
424 outputs = 4; 433 outputs = 4;
425 } else { 434 } else {
426 token = ibm_read_slot_reset_state; 435 token = ibm_read_slot_reset_state;
436 rets[2] = 0; /* fake PE Unavailable info */
427 outputs = 3; 437 outputs = 3;
428 } 438 }
429 439
@@ -432,87 +442,84 @@ static int read_slot_reset_state(struct device_node *dn, int rets[])
432} 442}
433 443
434/** 444/**
435 * eeh_panic - call panic() for an eeh event that cannot be handled. 445 * eeh_token_to_phys - convert EEH address token to phys address
436 * The philosophy of this routine is that it is better to panic and 446 * @token i/o token, should be address in the form 0xA....
437 * halt the OS than it is to risk possible data corruption by
438 * oblivious device drivers that don't know better.
439 *
440 * @dev pci device that had an eeh event
441 * @reset_state current reset state of the device slot
442 */ 447 */
443static void eeh_panic(struct pci_dev *dev, int reset_state) 448static inline unsigned long eeh_token_to_phys(unsigned long token)
444{ 449{
445 /* 450 pte_t *ptep;
446 * XXX We should create a separate sysctl for this. 451 unsigned long pa;
447 * 452
448 * Since the panic_on_oops sysctl is used to halt the system 453 ptep = find_linux_pte(init_mm.pgd, token);
449 * in light of potential corruption, we can use it here. 454 if (!ptep)
450 */ 455 return token;
451 if (panic_on_oops) 456 pa = pte_pfn(*ptep) << PAGE_SHIFT;
452 panic("EEH: MMIO failure (%d) on device:%s\n", reset_state, 457
453 pci_name(dev)); 458 return pa | (token & (PAGE_SIZE-1));
454 else {
455 __get_cpu_var(ignored_failures)++;
456 printk(KERN_INFO "EEH: Ignored MMIO failure (%d) on device:%s\n",
457 reset_state, pci_name(dev));
458 }
459} 459}
460 460
461/** 461/**
462 * eeh_event_handler - dispatch EEH events. The detection of a frozen 462 * Return the "partitionable endpoint" (pe) under which this device lies
463 * slot can occur inside an interrupt, where it can be hard to do
464 * anything about it. The goal of this routine is to pull these
465 * detection events out of the context of the interrupt handler, and
466 * re-dispatch them for processing at a later time in a normal context.
467 *
468 * @dummy - unused
469 */ 463 */
470static void eeh_event_handler(void *dummy) 464static struct device_node * find_device_pe(struct device_node *dn)
471{ 465{
472 unsigned long flags; 466 while ((dn->parent) && PCI_DN(dn->parent) &&
473 struct eeh_event *event; 467 (PCI_DN(dn->parent)->eeh_mode & EEH_MODE_SUPPORTED)) {
474 468 dn = dn->parent;
475 while (1) { 469 }
476 spin_lock_irqsave(&eeh_eventlist_lock, flags); 470 return dn;
477 event = NULL; 471}
478 if (!list_empty(&eeh_eventlist)) {
479 event = list_entry(eeh_eventlist.next, struct eeh_event, list);
480 list_del(&event->list);
481 }
482 spin_unlock_irqrestore(&eeh_eventlist_lock, flags);
483 if (event == NULL)
484 break;
485
486 printk(KERN_INFO "EEH: MMIO failure (%d), notifiying device "
487 "%s\n", event->reset_state,
488 pci_name(event->dev));
489 472
490 atomic_set(&eeh_fail_count, 0); 473/** Mark all devices that are peers of this device as failed.
491 notifier_call_chain (&eeh_notifier_chain, 474 * Mark the device driver too, so that it can see the failure
492 EEH_NOTIFY_FREEZE, event); 475 * immediately; this is critical, since some drivers poll
476 * status registers in interrupts ... If a driver is polling,
477 * and the slot is frozen, then the driver can deadlock in
478 * an interrupt context, which is bad.
479 */
493 480
494 __get_cpu_var(slot_resets)++; 481static void __eeh_mark_slot (struct device_node *dn, int mode_flag)
482{
483 while (dn) {
484 if (PCI_DN(dn)) {
485 PCI_DN(dn)->eeh_mode |= mode_flag;
495 486
496 pci_dev_put(event->dev); 487 if (dn->child)
497 kfree(event); 488 __eeh_mark_slot (dn->child, mode_flag);
489 }
490 dn = dn->sibling;
498 } 491 }
499} 492}
500 493
501/** 494void eeh_mark_slot (struct device_node *dn, int mode_flag)
502 * eeh_token_to_phys - convert EEH address token to phys address
503 * @token i/o token, should be address in the form 0xE....
504 */
505static inline unsigned long eeh_token_to_phys(unsigned long token)
506{ 495{
507 pte_t *ptep; 496 dn = find_device_pe (dn);
508 unsigned long pa; 497 PCI_DN(dn)->eeh_mode |= mode_flag;
498 __eeh_mark_slot (dn->child, mode_flag);
499}
509 500
510 ptep = find_linux_pte(init_mm.pgd, token); 501static void __eeh_clear_slot (struct device_node *dn, int mode_flag)
511 if (!ptep) 502{
512 return token; 503 while (dn) {
513 pa = pte_pfn(*ptep) << PAGE_SHIFT; 504 if (PCI_DN(dn)) {
505 PCI_DN(dn)->eeh_mode &= ~mode_flag;
506 PCI_DN(dn)->eeh_check_count = 0;
507 if (dn->child)
508 __eeh_clear_slot (dn->child, mode_flag);
509 }
510 dn = dn->sibling;
511 }
512}
514 513
515 return pa | (token & (PAGE_SIZE-1)); 514void eeh_clear_slot (struct device_node *dn, int mode_flag)
515{
516 unsigned long flags;
517 spin_lock_irqsave(&confirm_error_lock, flags);
518 dn = find_device_pe (dn);
519 PCI_DN(dn)->eeh_mode &= ~mode_flag;
520 PCI_DN(dn)->eeh_check_count = 0;
521 __eeh_clear_slot (dn->child, mode_flag);
522 spin_unlock_irqrestore(&confirm_error_lock, flags);
516} 523}
517 524
518/** 525/**
@@ -526,7 +533,7 @@ static inline unsigned long eeh_token_to_phys(unsigned long token)
526 * will query firmware for the EEH status. 533 * will query firmware for the EEH status.
527 * 534 *
528 * Returns 0 if there has not been an EEH error; otherwise returns 535 * Returns 0 if there has not been an EEH error; otherwise returns
529 * a non-zero value and queues up a solt isolation event notification. 536 * a non-zero value and queues up a slot isolation event notification.
530 * 537 *
531 * It is safe to call this routine in an interrupt context. 538 * It is safe to call this routine in an interrupt context.
532 */ 539 */
@@ -535,42 +542,59 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
535 int ret; 542 int ret;
536 int rets[3]; 543 int rets[3];
537 unsigned long flags; 544 unsigned long flags;
538 int rc, reset_state;
539 struct eeh_event *event;
540 struct pci_dn *pdn; 545 struct pci_dn *pdn;
546 int rc = 0;
541 547
542 __get_cpu_var(total_mmio_ffs)++; 548 __get_cpu_var(total_mmio_ffs)++;
543 549
544 if (!eeh_subsystem_enabled) 550 if (!eeh_subsystem_enabled)
545 return 0; 551 return 0;
546 552
547 if (!dn) 553 if (!dn) {
554 __get_cpu_var(no_dn)++;
548 return 0; 555 return 0;
549 pdn = dn->data; 556 }
557 pdn = PCI_DN(dn);
550 558
551 /* Access to IO BARs might get this far and still not want checking. */ 559 /* Access to IO BARs might get this far and still not want checking. */
552 if (!pdn->eeh_capable || !(pdn->eeh_mode & EEH_MODE_SUPPORTED) || 560 if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) ||
553 pdn->eeh_mode & EEH_MODE_NOCHECK) { 561 pdn->eeh_mode & EEH_MODE_NOCHECK) {
562 __get_cpu_var(ignored_check)++;
563#ifdef DEBUG
564 printk ("EEH:ignored check (%x) for %s %s\n",
565 pdn->eeh_mode, pci_name (dev), dn->full_name);
566#endif
554 return 0; 567 return 0;
555 } 568 }
556 569
557 if (!pdn->eeh_config_addr) { 570 if (!pdn->eeh_config_addr) {
571 __get_cpu_var(no_cfg_addr)++;
558 return 0; 572 return 0;
559 } 573 }
560 574
561 /* 575 /* If we already have a pending isolation event for this
562 * If we already have a pending isolation event for this 576 * slot, we know it's bad already, we don't need to check.
563 * slot, we know it's bad already, we don't need to check... 577 * Do this checking under a lock; as multiple PCI devices
578 * in one slot might report errors simultaneously, and we
579 * only want one error recovery routine running.
564 */ 580 */
581 spin_lock_irqsave(&confirm_error_lock, flags);
582 rc = 1;
565 if (pdn->eeh_mode & EEH_MODE_ISOLATED) { 583 if (pdn->eeh_mode & EEH_MODE_ISOLATED) {
566 atomic_inc(&eeh_fail_count); 584 pdn->eeh_check_count ++;
567 if (atomic_read(&eeh_fail_count) >= EEH_MAX_FAILS) { 585 if (pdn->eeh_check_count >= EEH_MAX_FAILS) {
586 printk (KERN_ERR "EEH: Device driver ignored %d bad reads, panicing\n",
587 pdn->eeh_check_count);
588 dump_stack();
589
568 /* re-read the slot reset state */ 590 /* re-read the slot reset state */
569 if (read_slot_reset_state(dn, rets) != 0) 591 if (read_slot_reset_state(pdn, rets) != 0)
570 rets[0] = -1; /* reset state unknown */ 592 rets[0] = -1; /* reset state unknown */
571 eeh_panic(dev, rets[0]); 593
594 /* If we are here, then we hit an infinite loop. Stop. */
595 panic("EEH: MMIO halt (%d) on device:%s\n", rets[0], pci_name(dev));
572 } 596 }
573 return 0; 597 goto dn_unlock;
574 } 598 }
575 599
576 /* 600 /*
@@ -580,66 +604,69 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
580 * function zero of a multi-function device. 604 * function zero of a multi-function device.
581 * In any case they must share a common PHB. 605 * In any case they must share a common PHB.
582 */ 606 */
583 ret = read_slot_reset_state(dn, rets); 607 ret = read_slot_reset_state(pdn, rets);
584 if (!(ret == 0 && rets[1] == 1 && (rets[0] == 2 || rets[0] == 4))) { 608
609 /* If the call to firmware failed, punt */
610 if (ret != 0) {
611 printk(KERN_WARNING "EEH: read_slot_reset_state() failed; rc=%d dn=%s\n",
612 ret, dn->full_name);
585 __get_cpu_var(false_positives)++; 613 __get_cpu_var(false_positives)++;
586 return 0; 614 rc = 0;
615 goto dn_unlock;
587 } 616 }
588 617
589 /* prevent repeated reports of this failure */ 618 /* If EEH is not supported on this device, punt. */
590 pdn->eeh_mode |= EEH_MODE_ISOLATED; 619 if (rets[1] != 1) {
591 620 printk(KERN_WARNING "EEH: event on unsupported device, rc=%d dn=%s\n",
592 reset_state = rets[0]; 621 ret, dn->full_name);
593 622 __get_cpu_var(false_positives)++;
594 spin_lock_irqsave(&slot_errbuf_lock, flags); 623 rc = 0;
595 memset(slot_errbuf, 0, eeh_error_buf_size); 624 goto dn_unlock;
596 625 }
597 rc = rtas_call(ibm_slot_error_detail,
598 8, 1, NULL, pdn->eeh_config_addr,
599 BUID_HI(pdn->phb->buid),
600 BUID_LO(pdn->phb->buid), NULL, 0,
601 virt_to_phys(slot_errbuf),
602 eeh_error_buf_size,
603 1 /* Temporary Error */);
604
605 if (rc == 0)
606 log_error(slot_errbuf, ERR_TYPE_RTAS_LOG, 0);
607 spin_unlock_irqrestore(&slot_errbuf_lock, flags);
608 626
609 printk(KERN_INFO "EEH: MMIO failure (%d) on device: %s %s\n", 627 /* If not the kind of error we know about, punt. */
610 rets[0], dn->name, dn->full_name); 628 if (rets[0] != 2 && rets[0] != 4 && rets[0] != 5) {
611 event = kmalloc(sizeof(*event), GFP_ATOMIC); 629 __get_cpu_var(false_positives)++;
612 if (event == NULL) { 630 rc = 0;
613 eeh_panic(dev, reset_state); 631 goto dn_unlock;
614 return 1; 632 }
615 }
616 633
617 event->dev = dev; 634 /* Note that config-io to empty slots may fail;
618 event->dn = dn; 635 * we recognize empty because they don't have children. */
619 event->reset_state = reset_state; 636 if ((rets[0] == 5) && (dn->child == NULL)) {
637 __get_cpu_var(false_positives)++;
638 rc = 0;
639 goto dn_unlock;
640 }
620 641
621 /* We may or may not be called in an interrupt context */ 642 __get_cpu_var(slot_resets)++;
622 spin_lock_irqsave(&eeh_eventlist_lock, flags); 643
623 list_add(&event->list, &eeh_eventlist); 644 /* Avoid repeated reports of this failure, including problems
624 spin_unlock_irqrestore(&eeh_eventlist_lock, flags); 645 * with other functions on this device, and functions under
646 * bridges. */
647 eeh_mark_slot (dn, EEH_MODE_ISOLATED);
648 spin_unlock_irqrestore(&confirm_error_lock, flags);
625 649
650 eeh_send_failure_event (dn, dev, rets[0], rets[2]);
651
626 /* Most EEH events are due to device driver bugs. Having 652 /* Most EEH events are due to device driver bugs. Having
627 * a stack trace will help the device-driver authors figure 653 * a stack trace will help the device-driver authors figure
628 * out what happened. So print that out. */ 654 * out what happened. So print that out. */
629 dump_stack(); 655 if (rets[0] != 5) dump_stack();
630 schedule_work(&eeh_event_wq); 656 return 1;
631 657
632 return 0; 658dn_unlock:
659 spin_unlock_irqrestore(&confirm_error_lock, flags);
660 return rc;
633} 661}
634 662
635EXPORT_SYMBOL(eeh_dn_check_failure); 663EXPORT_SYMBOL_GPL(eeh_dn_check_failure);
636 664
637/** 665/**
638 * eeh_check_failure - check if all 1's data is due to EEH slot freeze 666 * eeh_check_failure - check if all 1's data is due to EEH slot freeze
639 * @token i/o token, should be address in the form 0xA.... 667 * @token i/o token, should be address in the form 0xA....
640 * @val value, should be all 1's (XXX why do we need this arg??) 668 * @val value, should be all 1's (XXX why do we need this arg??)
641 * 669 *
642 * Check for an eeh failure at the given token address.
643 * Check for an EEH failure at the given token address. Call this 670 * Check for an EEH failure at the given token address. Call this
644 * routine if the result of a read was all 0xff's and you want to 671 * routine if the result of a read was all 0xff's and you want to
645 * find out if this is due to an EEH slot freeze event. This routine 672 * find out if this is due to an EEH slot freeze event. This routine
@@ -656,8 +683,10 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned lon
656 /* Finding the phys addr + pci device; this is pretty quick. */ 683 /* Finding the phys addr + pci device; this is pretty quick. */
657 addr = eeh_token_to_phys((unsigned long __force) token); 684 addr = eeh_token_to_phys((unsigned long __force) token);
658 dev = pci_get_device_by_addr(addr); 685 dev = pci_get_device_by_addr(addr);
659 if (!dev) 686 if (!dev) {
687 __get_cpu_var(no_device)++;
660 return val; 688 return val;
689 }
661 690
662 dn = pci_device_to_OF_node(dev); 691 dn = pci_device_to_OF_node(dev);
663 eeh_dn_check_failure (dn, dev); 692 eeh_dn_check_failure (dn, dev);
@@ -668,6 +697,217 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned lon
668 697
669EXPORT_SYMBOL(eeh_check_failure); 698EXPORT_SYMBOL(eeh_check_failure);
670 699
700/* ------------------------------------------------------------- */
701/* The code below deals with error recovery */
702
703/** Return negative value if a permanent error, else return
704 * a number of milliseconds to wait until the PCI slot is
705 * ready to be used.
706 */
707static int
708eeh_slot_availability(struct pci_dn *pdn)
709{
710 int rc;
711 int rets[3];
712
713 rc = read_slot_reset_state(pdn, rets);
714
715 if (rc) return rc;
716
717 if (rets[1] == 0) return -1; /* EEH is not supported */
718 if (rets[0] == 0) return 0; /* Oll Korrect */
719 if (rets[0] == 5) {
720 if (rets[2] == 0) return -1; /* permanently unavailable */
721 return rets[2]; /* number of millisecs to wait */
722 }
723 return -1;
724}
725
726/** rtas_pci_slot_reset raises/lowers the pci #RST line
727 * state: 1/0 to raise/lower the #RST
728 *
729 * Clear the EEH-frozen condition on a slot. This routine
730 * asserts the PCI #RST line if the 'state' argument is '1',
731 * and drops the #RST line if 'state is '0'. This routine is
732 * safe to call in an interrupt context.
733 *
734 */
735
736static void
737rtas_pci_slot_reset(struct pci_dn *pdn, int state)
738{
739 int rc;
740
741 BUG_ON (pdn==NULL);
742
743 if (!pdn->phb) {
744 printk (KERN_WARNING "EEH: in slot reset, device node %s has no phb\n",
745 pdn->node->full_name);
746 return;
747 }
748
749 rc = rtas_call(ibm_set_slot_reset,4,1, NULL,
750 pdn->eeh_config_addr,
751 BUID_HI(pdn->phb->buid),
752 BUID_LO(pdn->phb->buid),
753 state);
754 if (rc) {
755 printk (KERN_WARNING "EEH: Unable to reset the failed slot, (%d) #RST=%d dn=%s\n",
756 rc, state, pdn->node->full_name);
757 return;
758 }
759}
760
761/** rtas_set_slot_reset -- assert the pci #RST line for 1/4 second
762 * dn -- device node to be reset.
763 */
764
765void
766rtas_set_slot_reset(struct pci_dn *pdn)
767{
768 int i, rc;
769
770 rtas_pci_slot_reset (pdn, 1);
771
772 /* The PCI bus requires that the reset be held high for at least
773 * a 100 milliseconds. We wait a bit longer 'just in case'. */
774
775#define PCI_BUS_RST_HOLD_TIME_MSEC 250
776 msleep (PCI_BUS_RST_HOLD_TIME_MSEC);
777
778 /* We might get hit with another EEH freeze as soon as the
779 * pci slot reset line is dropped. Make sure we don't miss
780 * these, and clear the flag now. */
781 eeh_clear_slot (pdn->node, EEH_MODE_ISOLATED);
782
783 rtas_pci_slot_reset (pdn, 0);
784
785 /* After a PCI slot has been reset, the PCI Express spec requires
786 * a 1.5 second idle time for the bus to stabilize, before starting
787 * up traffic. */
788#define PCI_BUS_SETTLE_TIME_MSEC 1800
789 msleep (PCI_BUS_SETTLE_TIME_MSEC);
790
791 /* Now double check with the firmware to make sure the device is
792 * ready to be used; if not, wait for recovery. */
793 for (i=0; i<10; i++) {
794 rc = eeh_slot_availability (pdn);
795 if (rc <= 0) break;
796
797 msleep (rc+100);
798 }
799}
800
801/* ------------------------------------------------------- */
802/** Save and restore of PCI BARs
803 *
804 * Although firmware will set up BARs during boot, it doesn't
805 * set up device BAR's after a device reset, although it will,
806 * if requested, set up bridge configuration. Thus, we need to
807 * configure the PCI devices ourselves.
808 */
809
810/**
811 * __restore_bars - Restore the Base Address Registers
812 * Loads the PCI configuration space base address registers,
813 * the expansion ROM base address, the latency timer, and etc.
814 * from the saved values in the device node.
815 */
816static inline void __restore_bars (struct pci_dn *pdn)
817{
818 int i;
819
820 if (NULL==pdn->phb) return;
821 for (i=4; i<10; i++) {
822 rtas_write_config(pdn, i*4, 4, pdn->config_space[i]);
823 }
824
825 /* 12 == Expansion ROM Address */
826 rtas_write_config(pdn, 12*4, 4, pdn->config_space[12]);
827
828#define BYTE_SWAP(OFF) (8*((OFF)/4)+3-(OFF))
829#define SAVED_BYTE(OFF) (((u8 *)(pdn->config_space))[BYTE_SWAP(OFF)])
830
831 rtas_write_config (pdn, PCI_CACHE_LINE_SIZE, 1,
832 SAVED_BYTE(PCI_CACHE_LINE_SIZE));
833
834 rtas_write_config (pdn, PCI_LATENCY_TIMER, 1,
835 SAVED_BYTE(PCI_LATENCY_TIMER));
836
837 /* max latency, min grant, interrupt pin and line */
838 rtas_write_config(pdn, 15*4, 4, pdn->config_space[15]);
839}
840
841/**
842 * eeh_restore_bars - restore the PCI config space info
843 *
844 * This routine performs a recursive walk to the children
845 * of this device as well.
846 */
847void eeh_restore_bars(struct pci_dn *pdn)
848{
849 struct device_node *dn;
850 if (!pdn)
851 return;
852
853 if (! pdn->eeh_is_bridge)
854 __restore_bars (pdn);
855
856 dn = pdn->node->child;
857 while (dn) {
858 eeh_restore_bars (PCI_DN(dn));
859 dn = dn->sibling;
860 }
861}
862
863/**
864 * eeh_save_bars - save device bars
865 *
866 * Save the values of the device bars. Unlike the restore
867 * routine, this routine is *not* recursive. This is because
868 * PCI devices are added individuallly; but, for the restore,
869 * an entire slot is reset at a time.
870 */
871static void eeh_save_bars(struct pci_dev * pdev, struct pci_dn *pdn)
872{
873 int i;
874
875 if (!pdev || !pdn )
876 return;
877
878 for (i = 0; i < 16; i++)
879 pci_read_config_dword(pdev, i * 4, &pdn->config_space[i]);
880
881 if (pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
882 pdn->eeh_is_bridge = 1;
883}
884
885void
886rtas_configure_bridge(struct pci_dn *pdn)
887{
888 int token = rtas_token ("ibm,configure-bridge");
889 int rc;
890
891 if (token == RTAS_UNKNOWN_SERVICE)
892 return;
893 rc = rtas_call(token,3,1, NULL,
894 pdn->eeh_config_addr,
895 BUID_HI(pdn->phb->buid),
896 BUID_LO(pdn->phb->buid));
897 if (rc) {
898 printk (KERN_WARNING "EEH: Unable to configure device bridge (%d) for %s\n",
899 rc, pdn->node->full_name);
900 }
901}
902
903/* ------------------------------------------------------------- */
904/* The code below deals with enabling EEH for devices during the
905 * early boot sequence. EEH must be enabled before any PCI probing
906 * can be done.
907 */
908
909#define EEH_ENABLE 1
910
671struct eeh_early_enable_info { 911struct eeh_early_enable_info {
672 unsigned int buid_hi; 912 unsigned int buid_hi;
673 unsigned int buid_lo; 913 unsigned int buid_lo;
@@ -684,9 +924,11 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
684 u32 *device_id = (u32 *)get_property(dn, "device-id", NULL); 924 u32 *device_id = (u32 *)get_property(dn, "device-id", NULL);
685 u32 *regs; 925 u32 *regs;
686 int enable; 926 int enable;
687 struct pci_dn *pdn = dn->data; 927 struct pci_dn *pdn = PCI_DN(dn);
688 928
689 pdn->eeh_mode = 0; 929 pdn->eeh_mode = 0;
930 pdn->eeh_check_count = 0;
931 pdn->eeh_freeze_count = 0;
690 932
691 if (status && strcmp(status, "ok") != 0) 933 if (status && strcmp(status, "ok") != 0)
692 return NULL; /* ignore devices with bad status */ 934 return NULL; /* ignore devices with bad status */
@@ -723,8 +965,9 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
723 /* First register entry is addr (00BBSS00) */ 965 /* First register entry is addr (00BBSS00) */
724 /* Try to enable eeh */ 966 /* Try to enable eeh */
725 ret = rtas_call(ibm_set_eeh_option, 4, 1, NULL, 967 ret = rtas_call(ibm_set_eeh_option, 4, 1, NULL,
726 regs[0], info->buid_hi, info->buid_lo, 968 regs[0], info->buid_hi, info->buid_lo,
727 EEH_ENABLE); 969 EEH_ENABLE);
970
728 if (ret == 0) { 971 if (ret == 0) {
729 eeh_subsystem_enabled = 1; 972 eeh_subsystem_enabled = 1;
730 pdn->eeh_mode |= EEH_MODE_SUPPORTED; 973 pdn->eeh_mode |= EEH_MODE_SUPPORTED;
@@ -736,7 +979,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
736 979
737 /* This device doesn't support EEH, but it may have an 980 /* This device doesn't support EEH, but it may have an
738 * EEH parent, in which case we mark it as supported. */ 981 * EEH parent, in which case we mark it as supported. */
739 if (dn->parent && dn->parent->data 982 if (dn->parent && PCI_DN(dn->parent)
740 && (PCI_DN(dn->parent)->eeh_mode & EEH_MODE_SUPPORTED)) { 983 && (PCI_DN(dn->parent)->eeh_mode & EEH_MODE_SUPPORTED)) {
741 /* Parent supports EEH. */ 984 /* Parent supports EEH. */
742 pdn->eeh_mode |= EEH_MODE_SUPPORTED; 985 pdn->eeh_mode |= EEH_MODE_SUPPORTED;
@@ -749,7 +992,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
749 dn->full_name); 992 dn->full_name);
750 } 993 }
751 994
752 return NULL; 995 return NULL;
753} 996}
754 997
755/* 998/*
@@ -770,6 +1013,9 @@ void __init eeh_init(void)
770 struct device_node *phb, *np; 1013 struct device_node *phb, *np;
771 struct eeh_early_enable_info info; 1014 struct eeh_early_enable_info info;
772 1015
1016 spin_lock_init(&confirm_error_lock);
1017 spin_lock_init(&slot_errbuf_lock);
1018
773 np = of_find_node_by_path("/rtas"); 1019 np = of_find_node_by_path("/rtas");
774 if (np == NULL) 1020 if (np == NULL)
775 return; 1021 return;
@@ -797,13 +1043,11 @@ void __init eeh_init(void)
797 for (phb = of_find_node_by_name(NULL, "pci"); phb; 1043 for (phb = of_find_node_by_name(NULL, "pci"); phb;
798 phb = of_find_node_by_name(phb, "pci")) { 1044 phb = of_find_node_by_name(phb, "pci")) {
799 unsigned long buid; 1045 unsigned long buid;
800 struct pci_dn *pci;
801 1046
802 buid = get_phb_buid(phb); 1047 buid = get_phb_buid(phb);
803 if (buid == 0 || phb->data == NULL) 1048 if (buid == 0 || PCI_DN(phb) == NULL)
804 continue; 1049 continue;
805 1050
806 pci = phb->data;
807 info.buid_lo = BUID_LO(buid); 1051 info.buid_lo = BUID_LO(buid);
808 info.buid_hi = BUID_HI(buid); 1052 info.buid_hi = BUID_HI(buid);
809 traverse_pci_devices(phb, early_enable_eeh, &info); 1053 traverse_pci_devices(phb, early_enable_eeh, &info);
@@ -832,11 +1076,13 @@ void eeh_add_device_early(struct device_node *dn)
832 struct pci_controller *phb; 1076 struct pci_controller *phb;
833 struct eeh_early_enable_info info; 1077 struct eeh_early_enable_info info;
834 1078
835 if (!dn || !dn->data) 1079 if (!dn || !PCI_DN(dn))
836 return; 1080 return;
837 phb = PCI_DN(dn)->phb; 1081 phb = PCI_DN(dn)->phb;
838 if (NULL == phb || 0 == phb->buid) { 1082 if (NULL == phb || 0 == phb->buid) {
839 printk(KERN_WARNING "EEH: Expected buid but found none\n"); 1083 printk(KERN_WARNING "EEH: Expected buid but found none for %s\n",
1084 dn->full_name);
1085 dump_stack();
840 return; 1086 return;
841 } 1087 }
842 1088
@@ -844,7 +1090,7 @@ void eeh_add_device_early(struct device_node *dn)
844 info.buid_lo = BUID_LO(phb->buid); 1090 info.buid_lo = BUID_LO(phb->buid);
845 early_enable_eeh(dn, &info); 1091 early_enable_eeh(dn, &info);
846} 1092}
847EXPORT_SYMBOL(eeh_add_device_early); 1093EXPORT_SYMBOL_GPL(eeh_add_device_early);
848 1094
849/** 1095/**
850 * eeh_add_device_late - perform EEH initialization for the indicated pci device 1096 * eeh_add_device_late - perform EEH initialization for the indicated pci device
@@ -855,6 +1101,9 @@ EXPORT_SYMBOL(eeh_add_device_early);
855 */ 1101 */
856void eeh_add_device_late(struct pci_dev *dev) 1102void eeh_add_device_late(struct pci_dev *dev)
857{ 1103{
1104 struct device_node *dn;
1105 struct pci_dn *pdn;
1106
858 if (!dev || !eeh_subsystem_enabled) 1107 if (!dev || !eeh_subsystem_enabled)
859 return; 1108 return;
860 1109
@@ -862,9 +1111,15 @@ void eeh_add_device_late(struct pci_dev *dev)
862 printk(KERN_DEBUG "EEH: adding device %s\n", pci_name(dev)); 1111 printk(KERN_DEBUG "EEH: adding device %s\n", pci_name(dev));
863#endif 1112#endif
864 1113
1114 pci_dev_get (dev);
1115 dn = pci_device_to_OF_node(dev);
1116 pdn = PCI_DN(dn);
1117 pdn->pcidev = dev;
1118
865 pci_addr_cache_insert_device (dev); 1119 pci_addr_cache_insert_device (dev);
1120 eeh_save_bars(dev, pdn);
866} 1121}
867EXPORT_SYMBOL(eeh_add_device_late); 1122EXPORT_SYMBOL_GPL(eeh_add_device_late);
868 1123
869/** 1124/**
870 * eeh_remove_device - undo EEH setup for the indicated pci device 1125 * eeh_remove_device - undo EEH setup for the indicated pci device
@@ -875,6 +1130,7 @@ EXPORT_SYMBOL(eeh_add_device_late);
875 */ 1130 */
876void eeh_remove_device(struct pci_dev *dev) 1131void eeh_remove_device(struct pci_dev *dev)
877{ 1132{
1133 struct device_node *dn;
878 if (!dev || !eeh_subsystem_enabled) 1134 if (!dev || !eeh_subsystem_enabled)
879 return; 1135 return;
880 1136
@@ -883,20 +1139,29 @@ void eeh_remove_device(struct pci_dev *dev)
883 printk(KERN_DEBUG "EEH: remove device %s\n", pci_name(dev)); 1139 printk(KERN_DEBUG "EEH: remove device %s\n", pci_name(dev));
884#endif 1140#endif
885 pci_addr_cache_remove_device(dev); 1141 pci_addr_cache_remove_device(dev);
1142
1143 dn = pci_device_to_OF_node(dev);
1144 PCI_DN(dn)->pcidev = NULL;
1145 pci_dev_put (dev);
886} 1146}
887EXPORT_SYMBOL(eeh_remove_device); 1147EXPORT_SYMBOL_GPL(eeh_remove_device);
888 1148
889static int proc_eeh_show(struct seq_file *m, void *v) 1149static int proc_eeh_show(struct seq_file *m, void *v)
890{ 1150{
891 unsigned int cpu; 1151 unsigned int cpu;
892 unsigned long ffs = 0, positives = 0, failures = 0; 1152 unsigned long ffs = 0, positives = 0, failures = 0;
893 unsigned long resets = 0; 1153 unsigned long resets = 0;
1154 unsigned long no_dev = 0, no_dn = 0, no_cfg = 0, no_check = 0;
894 1155
895 for_each_cpu(cpu) { 1156 for_each_cpu(cpu) {
896 ffs += per_cpu(total_mmio_ffs, cpu); 1157 ffs += per_cpu(total_mmio_ffs, cpu);
897 positives += per_cpu(false_positives, cpu); 1158 positives += per_cpu(false_positives, cpu);
898 failures += per_cpu(ignored_failures, cpu); 1159 failures += per_cpu(ignored_failures, cpu);
899 resets += per_cpu(slot_resets, cpu); 1160 resets += per_cpu(slot_resets, cpu);
1161 no_dev += per_cpu(no_device, cpu);
1162 no_dn += per_cpu(no_dn, cpu);
1163 no_cfg += per_cpu(no_cfg_addr, cpu);
1164 no_check += per_cpu(ignored_check, cpu);
900 } 1165 }
901 1166
902 if (0 == eeh_subsystem_enabled) { 1167 if (0 == eeh_subsystem_enabled) {
@@ -904,13 +1169,17 @@ static int proc_eeh_show(struct seq_file *m, void *v)
904 seq_printf(m, "eeh_total_mmio_ffs=%ld\n", ffs); 1169 seq_printf(m, "eeh_total_mmio_ffs=%ld\n", ffs);
905 } else { 1170 } else {
906 seq_printf(m, "EEH Subsystem is enabled\n"); 1171 seq_printf(m, "EEH Subsystem is enabled\n");
907 seq_printf(m, "eeh_total_mmio_ffs=%ld\n" 1172 seq_printf(m,
908 "eeh_false_positives=%ld\n" 1173 "no device=%ld\n"
909 "eeh_ignored_failures=%ld\n" 1174 "no device node=%ld\n"
910 "eeh_slot_resets=%ld\n" 1175 "no config address=%ld\n"
911 "eeh_fail_count=%d\n", 1176 "check not wanted=%ld\n"
912 ffs, positives, failures, resets, 1177 "eeh_total_mmio_ffs=%ld\n"
913 eeh_fail_count.counter); 1178 "eeh_false_positives=%ld\n"
1179 "eeh_ignored_failures=%ld\n"
1180 "eeh_slot_resets=%ld\n",
1181 no_dev, no_dn, no_cfg, no_check,
1182 ffs, positives, failures, resets);
914 } 1183 }
915 1184
916 return 0; 1185 return 0;
@@ -932,7 +1201,7 @@ static int __init eeh_init_proc(void)
932{ 1201{
933 struct proc_dir_entry *e; 1202 struct proc_dir_entry *e;
934 1203
935 if (systemcfg->platform & PLATFORM_PSERIES) { 1204 if (platform_is_pseries()) {
936 e = create_proc_entry("ppc64/eeh", 0, NULL); 1205 e = create_proc_entry("ppc64/eeh", 0, NULL);
937 if (e) 1206 if (e)
938 e->proc_fops = &proc_eeh_operations; 1207 e->proc_fops = &proc_eeh_operations;
diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
new file mode 100644
index 000000000000..92497333c2b6
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -0,0 +1,155 @@
1/*
2 * eeh_event.c
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 * Copyright (c) 2005 Linas Vepstas <linas@linas.org>
19 */
20
21#include <linux/list.h>
22#include <linux/pci.h>
23#include <asm/eeh_event.h>
24
25/** Overview:
26 * EEH error states may be detected within exception handlers;
27 * however, the recovery processing needs to occur asynchronously
28 * in a normal kernel context and not an interrupt context.
29 * This pair of routines creates an event and queues it onto a
30 * work-queue, where a worker thread can drive recovery.
31 */
32
33/* EEH event workqueue setup. */
34static spinlock_t eeh_eventlist_lock = SPIN_LOCK_UNLOCKED;
35LIST_HEAD(eeh_eventlist);
36static void eeh_thread_launcher(void *);
37DECLARE_WORK(eeh_event_wq, eeh_thread_launcher, NULL);
38
39/**
40 * eeh_panic - call panic() for an eeh event that cannot be handled.
41 * The philosophy of this routine is that it is better to panic and
42 * halt the OS than it is to risk possible data corruption by
43 * oblivious device drivers that don't know better.
44 *
45 * @dev pci device that had an eeh event
46 * @reset_state current reset state of the device slot
47 */
48static void eeh_panic(struct pci_dev *dev, int reset_state)
49{
50 /*
51 * Since the panic_on_oops sysctl is used to halt the system
52 * in light of potential corruption, we can use it here.
53 */
54 if (panic_on_oops) {
55 panic("EEH: MMIO failure (%d) on device:%s\n", reset_state,
56 pci_name(dev));
57 }
58 else {
59 printk(KERN_INFO "EEH: Ignored MMIO failure (%d) on device:%s\n",
60 reset_state, pci_name(dev));
61 }
62}
63
64/**
65 * eeh_event_handler - dispatch EEH events. The detection of a frozen
66 * slot can occur inside an interrupt, where it can be hard to do
67 * anything about it. The goal of this routine is to pull these
68 * detection events out of the context of the interrupt handler, and
69 * re-dispatch them for processing at a later time in a normal context.
70 *
71 * @dummy - unused
72 */
73static int eeh_event_handler(void * dummy)
74{
75 unsigned long flags;
76 struct eeh_event *event;
77
78 daemonize ("eehd");
79
80 while (1) {
81 set_current_state(TASK_INTERRUPTIBLE);
82
83 spin_lock_irqsave(&eeh_eventlist_lock, flags);
84 event = NULL;
85 if (!list_empty(&eeh_eventlist)) {
86 event = list_entry(eeh_eventlist.next, struct eeh_event, list);
87 list_del(&event->list);
88 }
89 spin_unlock_irqrestore(&eeh_eventlist_lock, flags);
90 if (event == NULL)
91 break;
92
93 printk(KERN_INFO "EEH: Detected PCI bus error on device %s\n",
94 pci_name(event->dev));
95
96 eeh_panic (event->dev, event->state);
97
98 kfree(event);
99 }
100
101 return 0;
102}
103
104/**
105 * eeh_thread_launcher
106 *
107 * @dummy - unused
108 */
109static void eeh_thread_launcher(void *dummy)
110{
111 if (kernel_thread(eeh_event_handler, NULL, CLONE_KERNEL) < 0)
112 printk(KERN_ERR "Failed to start EEH daemon\n");
113}
114
115/**
116 * eeh_send_failure_event - generate a PCI error event
117 * @dev pci device
118 *
119 * This routine can be called within an interrupt context;
120 * the actual event will be delivered in a normal context
121 * (from a workqueue).
122 */
123int eeh_send_failure_event (struct device_node *dn,
124 struct pci_dev *dev,
125 int state,
126 int time_unavail)
127{
128 unsigned long flags;
129 struct eeh_event *event;
130
131 event = kmalloc(sizeof(*event), GFP_ATOMIC);
132 if (event == NULL) {
133 printk (KERN_ERR "EEH: out of memory, event not handled\n");
134 return 1;
135 }
136
137 if (dev)
138 pci_dev_get(dev);
139
140 event->dn = dn;
141 event->dev = dev;
142 event->state = state;
143 event->time_unavail = time_unavail;
144
145 /* We may or may not be called in an interrupt context */
146 spin_lock_irqsave(&eeh_eventlist_lock, flags);
147 list_add(&event->list, &eeh_eventlist);
148 spin_unlock_irqrestore(&eeh_eventlist_lock, flags);
149
150 schedule_work(&eeh_event_wq);
151
152 return 0;
153}
154
155/********************** END OF FILE ******************************/
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index fcc50bfd43fd..97ba5214417f 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -42,7 +42,6 @@
42#include <asm/machdep.h> 42#include <asm/machdep.h>
43#include <asm/abs_addr.h> 43#include <asm/abs_addr.h>
44#include <asm/pSeries_reconfig.h> 44#include <asm/pSeries_reconfig.h>
45#include <asm/systemcfg.h>
46#include <asm/firmware.h> 45#include <asm/firmware.h>
47#include <asm/tce.h> 46#include <asm/tce.h>
48#include <asm/ppc-pci.h> 47#include <asm/ppc-pci.h>
@@ -582,7 +581,7 @@ void iommu_init_early_pSeries(void)
582 return; 581 return;
583 } 582 }
584 583
585 if (systemcfg->platform & PLATFORM_LPAR) { 584 if (platform_is_lpar()) {
586 if (firmware_has_feature(FW_FEATURE_MULTITCE)) { 585 if (firmware_has_feature(FW_FEATURE_MULTITCE)) {
587 ppc_md.tce_build = tce_buildmulti_pSeriesLP; 586 ppc_md.tce_build = tce_buildmulti_pSeriesLP;
588 ppc_md.tce_free = tce_freemulti_pSeriesLP; 587 ppc_md.tce_free = tce_freemulti_pSeriesLP;
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index c198656a3bb5..999a9620b5ce 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -107,7 +107,6 @@ static void __init pSeries_request_regions(void)
107 107
108void __init pSeries_final_fixup(void) 108void __init pSeries_final_fixup(void)
109{ 109{
110 phbs_remap_io();
111 pSeries_request_regions(); 110 pSeries_request_regions();
112 111
113 pci_addr_cache_build(); 112 pci_addr_cache_build();
@@ -123,7 +122,7 @@ static void fixup_winbond_82c105(struct pci_dev* dev)
123 int i; 122 int i;
124 unsigned int reg; 123 unsigned int reg;
125 124
126 if (!(systemcfg->platform & PLATFORM_PSERIES)) 125 if (!platform_is_pseries())
127 return; 126 return;
128 127
129 printk("Using INTC for W82c105 IDE controller.\n"); 128 printk("Using INTC for W82c105 IDE controller.\n");
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index d7d400339458..d8864164dbe8 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -408,7 +408,7 @@ static int proc_ppc64_create_ofdt(void)
408{ 408{
409 struct proc_dir_entry *ent; 409 struct proc_dir_entry *ent;
410 410
411 if (!(systemcfg->platform & PLATFORM_PSERIES)) 411 if (!platform_is_pseries())
412 return 0; 412 return 0;
413 413
414 ent = create_proc_entry("ppc64/ofdt", S_IWUSR, NULL); 414 ent = create_proc_entry("ppc64/ofdt", S_IWUSR, NULL);
diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index e26b0420b6dd..00cf331a1dc4 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -482,10 +482,12 @@ static int __init rtas_init(void)
482{ 482{
483 struct proc_dir_entry *entry; 483 struct proc_dir_entry *entry;
484 484
485 /* No RTAS, only warn if we are on a pSeries box */ 485 if (!platform_is_pseries())
486 return 0;
487
488 /* No RTAS */
486 if (rtas_token("event-scan") == RTAS_UNKNOWN_SERVICE) { 489 if (rtas_token("event-scan") == RTAS_UNKNOWN_SERVICE) {
487 if (systemcfg->platform & PLATFORM_PSERIES) 490 printk(KERN_INFO "rtasd: no event-scan on system\n");
488 printk(KERN_INFO "rtasd: no event-scan on system\n");
489 return 1; 491 return 1;
490 } 492 }
491 493
diff --git a/arch/ppc64/kernel/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c
index 2edc947f7c44..2edc947f7c44 100644
--- a/arch/ppc64/kernel/scanlog.c
+++ b/arch/powerpc/platforms/pseries/scanlog.c
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index a093a0d4dd69..e94247c28d42 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -249,7 +249,7 @@ static void __init pSeries_setup_arch(void)
249 ppc_md.idle_loop = default_idle; 249 ppc_md.idle_loop = default_idle;
250 } 250 }
251 251
252 if (systemcfg->platform & PLATFORM_LPAR) 252 if (platform_is_lpar())
253 ppc_md.enable_pmcs = pseries_lpar_enable_pmcs; 253 ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
254 else 254 else
255 ppc_md.enable_pmcs = power4_enable_pmcs; 255 ppc_md.enable_pmcs = power4_enable_pmcs;
@@ -378,7 +378,7 @@ static void __init pSeries_init_early(void)
378 378
379 fw_feature_init(); 379 fw_feature_init();
380 380
381 if (systemcfg->platform & PLATFORM_LPAR) 381 if (platform_is_lpar())
382 hpte_init_lpar(); 382 hpte_init_lpar();
383 else { 383 else {
384 hpte_init_native(); 384 hpte_init_native();
@@ -388,7 +388,7 @@ static void __init pSeries_init_early(void)
388 388
389 generic_find_legacy_serial_ports(&physport, &default_speed); 389 generic_find_legacy_serial_ports(&physport, &default_speed);
390 390
391 if (systemcfg->platform & PLATFORM_LPAR) 391 if (platform_is_lpar())
392 find_udbg_vterm(); 392 find_udbg_vterm();
393 else if (physport) { 393 else if (physport) {
394 /* Map the uart for udbg. */ 394 /* Map the uart for udbg. */
@@ -592,7 +592,7 @@ static void pseries_shared_idle(void)
592 592
593static int pSeries_pci_probe_mode(struct pci_bus *bus) 593static int pSeries_pci_probe_mode(struct pci_bus *bus)
594{ 594{
595 if (systemcfg->platform & PLATFORM_LPAR) 595 if (platform_is_lpar())
596 return PCI_PROBE_DEVTREE; 596 return PCI_PROBE_DEVTREE;
597 return PCI_PROBE_NORMAL; 597 return PCI_PROBE_NORMAL;
598} 598}
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 7a243e8ccd7e..3ba794ca3288 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -46,6 +46,7 @@
46#include <asm/rtas.h> 46#include <asm/rtas.h>
47#include <asm/pSeries_reconfig.h> 47#include <asm/pSeries_reconfig.h>
48#include <asm/mpic.h> 48#include <asm/mpic.h>
49#include <asm/systemcfg.h>
49 50
50#include "plpar_wrappers.h" 51#include "plpar_wrappers.h"
51 52
@@ -96,7 +97,7 @@ int pSeries_cpu_disable(void)
96 int cpu = smp_processor_id(); 97 int cpu = smp_processor_id();
97 98
98 cpu_clear(cpu, cpu_online_map); 99 cpu_clear(cpu, cpu_online_map);
99 systemcfg->processorCount--; 100 _systemcfg->processorCount--;
100 101
101 /*fix boot_cpuid here*/ 102 /*fix boot_cpuid here*/
102 if (cpu == boot_cpuid) 103 if (cpu == boot_cpuid)
@@ -441,7 +442,7 @@ void __init smp_init_pSeries(void)
441 smp_ops->cpu_die = pSeries_cpu_die; 442 smp_ops->cpu_die = pSeries_cpu_die;
442 443
443 /* Processors can be added/removed only on LPAR */ 444 /* Processors can be added/removed only on LPAR */
444 if (systemcfg->platform == PLATFORM_PSERIES_LPAR) 445 if (platform_is_lpar())
445 pSeries_reconfig_notifier_register(&pSeries_smp_nb); 446 pSeries_reconfig_notifier_register(&pSeries_smp_nb);
446#endif 447#endif
447 448
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index c72c86f05cb6..72ac18067ece 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -545,7 +545,9 @@ nextnode:
545 of_node_put(np); 545 of_node_put(np);
546 } 546 }
547 547
548 if (systemcfg->platform == PLATFORM_PSERIES) { 548 if (platform_is_lpar())
549 ops = &pSeriesLP_ops;
550 else {
549#ifdef CONFIG_SMP 551#ifdef CONFIG_SMP
550 for_each_cpu(i) { 552 for_each_cpu(i) {
551 int hard_id; 553 int hard_id;
@@ -561,12 +563,11 @@ nextnode:
561#else 563#else
562 xics_per_cpu[0] = ioremap(intr_base, intr_size); 564 xics_per_cpu[0] = ioremap(intr_base, intr_size);
563#endif /* CONFIG_SMP */ 565#endif /* CONFIG_SMP */
564 } else if (systemcfg->platform == PLATFORM_PSERIES_LPAR) {
565 ops = &pSeriesLP_ops;
566 } 566 }
567 567
568 xics_8259_pic.enable = i8259_pic.enable; 568 xics_8259_pic.enable = i8259_pic.enable;
569 xics_8259_pic.disable = i8259_pic.disable; 569 xics_8259_pic.disable = i8259_pic.disable;
570 xics_8259_pic.end = i8259_pic.end;
570 for (i = 0; i < 16; ++i) 571 for (i = 0; i < 16; ++i)
571 get_irq_desc(i)->handler = &xics_8259_pic; 572 get_irq_desc(i)->handler = &xics_8259_pic;
572 for (; i < NR_IRQS; ++i) 573 for (; i < NR_IRQS; ++i)
diff --git a/arch/powerpc/sysdev/u3_iommu.c b/arch/powerpc/sysdev/u3_iommu.c
index 543d65909812..f32baf7f4693 100644
--- a/arch/powerpc/sysdev/u3_iommu.c
+++ b/arch/powerpc/sysdev/u3_iommu.c
@@ -226,7 +226,7 @@ static void iommu_table_u3_setup(void)
226 iommu_table_u3.it_busno = 0; 226 iommu_table_u3.it_busno = 0;
227 iommu_table_u3.it_offset = 0; 227 iommu_table_u3.it_offset = 0;
228 /* it_size is in number of entries */ 228 /* it_size is in number of entries */
229 iommu_table_u3.it_size = dart_tablesize / sizeof(u32); 229 iommu_table_u3.it_size = (dart_tablesize / sizeof(u32)) >> DART_PAGE_FACTOR;
230 230
231 /* Initialize the common IOMMU code */ 231 /* Initialize the common IOMMU code */
232 iommu_table_u3.it_base = (unsigned long)dart_vbase; 232 iommu_table_u3.it_base = (unsigned long)dart_vbase;
diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile
index 79a784f0e7a9..b20312e5ed27 100644
--- a/arch/powerpc/xmon/Makefile
+++ b/arch/powerpc/xmon/Makefile
@@ -8,4 +8,4 @@ obj-$(CONFIG_8xx) += start_8xx.o
8obj-$(CONFIG_6xx) += start_32.o 8obj-$(CONFIG_6xx) += start_32.o
9obj-$(CONFIG_4xx) += start_32.o 9obj-$(CONFIG_4xx) += start_32.o
10obj-$(CONFIG_PPC64) += start_64.o 10obj-$(CONFIG_PPC64) += start_64.o
11obj-y += xmon.o ppc-dis.o ppc-opc.o subr_prf.o setjmp.o 11obj-y += xmon.o ppc-dis.o ppc-opc.o setjmp.o nonstdio.o
diff --git a/arch/powerpc/xmon/nonstdio.c b/arch/powerpc/xmon/nonstdio.c
new file mode 100644
index 000000000000..78765833f4c0
--- /dev/null
+++ b/arch/powerpc/xmon/nonstdio.c
@@ -0,0 +1,134 @@
1/*
2 * Copyright (C) 1996-2005 Paul Mackerras.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9#include <linux/string.h>
10#include <asm/time.h>
11#include "nonstdio.h"
12
13int xmon_putchar(int c)
14{
15 char ch = c;
16
17 if (c == '\n')
18 xmon_putchar('\r');
19 return xmon_write(&ch, 1) == 1? c: -1;
20}
21
22static char line[256];
23static char *lineptr;
24static int lineleft;
25
26int xmon_expect(const char *str, unsigned long timeout)
27{
28 int c;
29 unsigned long t0;
30
31 /* assume 25MHz default timebase if tb_ticks_per_sec not set yet */
32 timeout *= tb_ticks_per_sec? tb_ticks_per_sec: 25000000;
33 t0 = get_tbl();
34 do {
35 lineptr = line;
36 for (;;) {
37 c = xmon_read_poll();
38 if (c == -1) {
39 if (get_tbl() - t0 > timeout)
40 return 0;
41 continue;
42 }
43 if (c == '\n')
44 break;
45 if (c != '\r' && lineptr < &line[sizeof(line) - 1])
46 *lineptr++ = c;
47 }
48 *lineptr = 0;
49 } while (strstr(line, str) == NULL);
50 return 1;
51}
52
53int xmon_getchar(void)
54{
55 int c;
56
57 if (lineleft == 0) {
58 lineptr = line;
59 for (;;) {
60 c = xmon_readchar();
61 if (c == -1 || c == 4)
62 break;
63 if (c == '\r' || c == '\n') {
64 *lineptr++ = '\n';
65 xmon_putchar('\n');
66 break;
67 }
68 switch (c) {
69 case 0177:
70 case '\b':
71 if (lineptr > line) {
72 xmon_putchar('\b');
73 xmon_putchar(' ');
74 xmon_putchar('\b');
75 --lineptr;
76 }
77 break;
78 case 'U' & 0x1F:
79 while (lineptr > line) {
80 xmon_putchar('\b');
81 xmon_putchar(' ');
82 xmon_putchar('\b');
83 --lineptr;
84 }
85 break;
86 default:
87 if (lineptr >= &line[sizeof(line) - 1])
88 xmon_putchar('\a');
89 else {
90 xmon_putchar(c);
91 *lineptr++ = c;
92 }
93 }
94 }
95 lineleft = lineptr - line;
96 lineptr = line;
97 }
98 if (lineleft == 0)
99 return -1;
100 --lineleft;
101 return *lineptr++;
102}
103
104char *xmon_gets(char *str, int nb)
105{
106 char *p;
107 int c;
108
109 for (p = str; p < str + nb - 1; ) {
110 c = xmon_getchar();
111 if (c == -1) {
112 if (p == str)
113 return NULL;
114 break;
115 }
116 *p++ = c;
117 if (c == '\n')
118 break;
119 }
120 *p = 0;
121 return str;
122}
123
124void xmon_printf(const char *format, ...)
125{
126 va_list args;
127 int n;
128 static char xmon_outbuf[1024];
129
130 va_start(args, format);
131 n = vsnprintf(xmon_outbuf, sizeof(xmon_outbuf), format, args);
132 va_end(args);
133 xmon_write(xmon_outbuf, n);
134}
diff --git a/arch/powerpc/xmon/nonstdio.h b/arch/powerpc/xmon/nonstdio.h
index 84211a21c6f4..47cebbd2b1b1 100644
--- a/arch/powerpc/xmon/nonstdio.h
+++ b/arch/powerpc/xmon/nonstdio.h
@@ -1,22 +1,14 @@
1typedef int FILE;
2extern FILE *xmon_stdin, *xmon_stdout;
3#define EOF (-1) 1#define EOF (-1)
4#define stdin xmon_stdin 2
5#define stdout xmon_stdout
6#define printf xmon_printf 3#define printf xmon_printf
7#define fprintf xmon_fprintf
8#define fputs xmon_fputs
9#define fgets xmon_fgets
10#define putchar xmon_putchar 4#define putchar xmon_putchar
11#define getchar xmon_getchar
12#define putc xmon_putc
13#define getc xmon_getc
14#define fopen(n, m) NULL
15#define fflush(f) do {} while (0)
16#define fclose(f) do {} while (0)
17extern char *fgets(char *, int, void *);
18extern void xmon_printf(const char *, ...);
19extern void xmon_fprintf(void *, const char *, ...);
20extern void xmon_sprintf(char *, const char *, ...);
21 5
22#define perror(s) printf("%s: no files!\n", (s)) 6extern int xmon_putchar(int c);
7extern int xmon_getchar(void);
8extern char *xmon_gets(char *, int);
9extern void xmon_printf(const char *, ...);
10extern void xmon_map_scc(void);
11extern int xmon_expect(const char *str, unsigned long timeout);
12extern int xmon_write(void *ptr, int nb);
13extern int xmon_readchar(void);
14extern int xmon_read_poll(void);
diff --git a/arch/powerpc/xmon/setjmp.S b/arch/powerpc/xmon/setjmp.S
index f8e40dfd2bff..96a91f10e2ec 100644
--- a/arch/powerpc/xmon/setjmp.S
+++ b/arch/powerpc/xmon/setjmp.S
@@ -14,61 +14,61 @@
14 14
15_GLOBAL(xmon_setjmp) 15_GLOBAL(xmon_setjmp)
16 mflr r0 16 mflr r0
17 STL r0,0(r3) 17 PPC_STL r0,0(r3)
18 STL r1,SZL(r3) 18 PPC_STL r1,SZL(r3)
19 STL r2,2*SZL(r3) 19 PPC_STL r2,2*SZL(r3)
20 mfcr r0 20 mfcr r0
21 STL r0,3*SZL(r3) 21 PPC_STL r0,3*SZL(r3)
22 STL r13,4*SZL(r3) 22 PPC_STL r13,4*SZL(r3)
23 STL r14,5*SZL(r3) 23 PPC_STL r14,5*SZL(r3)
24 STL r15,6*SZL(r3) 24 PPC_STL r15,6*SZL(r3)
25 STL r16,7*SZL(r3) 25 PPC_STL r16,7*SZL(r3)
26 STL r17,8*SZL(r3) 26 PPC_STL r17,8*SZL(r3)
27 STL r18,9*SZL(r3) 27 PPC_STL r18,9*SZL(r3)
28 STL r19,10*SZL(r3) 28 PPC_STL r19,10*SZL(r3)
29 STL r20,11*SZL(r3) 29 PPC_STL r20,11*SZL(r3)
30 STL r21,12*SZL(r3) 30 PPC_STL r21,12*SZL(r3)
31 STL r22,13*SZL(r3) 31 PPC_STL r22,13*SZL(r3)
32 STL r23,14*SZL(r3) 32 PPC_STL r23,14*SZL(r3)
33 STL r24,15*SZL(r3) 33 PPC_STL r24,15*SZL(r3)
34 STL r25,16*SZL(r3) 34 PPC_STL r25,16*SZL(r3)
35 STL r26,17*SZL(r3) 35 PPC_STL r26,17*SZL(r3)
36 STL r27,18*SZL(r3) 36 PPC_STL r27,18*SZL(r3)
37 STL r28,19*SZL(r3) 37 PPC_STL r28,19*SZL(r3)
38 STL r29,20*SZL(r3) 38 PPC_STL r29,20*SZL(r3)
39 STL r30,21*SZL(r3) 39 PPC_STL r30,21*SZL(r3)
40 STL r31,22*SZL(r3) 40 PPC_STL r31,22*SZL(r3)
41 li r3,0 41 li r3,0
42 blr 42 blr
43 43
44_GLOBAL(xmon_longjmp) 44_GLOBAL(xmon_longjmp)
45 CMPI r4,0 45 PPC_LCMPI r4,0
46 bne 1f 46 bne 1f
47 li r4,1 47 li r4,1
481: LDL r13,4*SZL(r3) 481: PPC_LL r13,4*SZL(r3)
49 LDL r14,5*SZL(r3) 49 PPC_LL r14,5*SZL(r3)
50 LDL r15,6*SZL(r3) 50 PPC_LL r15,6*SZL(r3)
51 LDL r16,7*SZL(r3) 51 PPC_LL r16,7*SZL(r3)
52 LDL r17,8*SZL(r3) 52 PPC_LL r17,8*SZL(r3)
53 LDL r18,9*SZL(r3) 53 PPC_LL r18,9*SZL(r3)
54 LDL r19,10*SZL(r3) 54 PPC_LL r19,10*SZL(r3)
55 LDL r20,11*SZL(r3) 55 PPC_LL r20,11*SZL(r3)
56 LDL r21,12*SZL(r3) 56 PPC_LL r21,12*SZL(r3)
57 LDL r22,13*SZL(r3) 57 PPC_LL r22,13*SZL(r3)
58 LDL r23,14*SZL(r3) 58 PPC_LL r23,14*SZL(r3)
59 LDL r24,15*SZL(r3) 59 PPC_LL r24,15*SZL(r3)
60 LDL r25,16*SZL(r3) 60 PPC_LL r25,16*SZL(r3)
61 LDL r26,17*SZL(r3) 61 PPC_LL r26,17*SZL(r3)
62 LDL r27,18*SZL(r3) 62 PPC_LL r27,18*SZL(r3)
63 LDL r28,19*SZL(r3) 63 PPC_LL r28,19*SZL(r3)
64 LDL r29,20*SZL(r3) 64 PPC_LL r29,20*SZL(r3)
65 LDL r30,21*SZL(r3) 65 PPC_LL r30,21*SZL(r3)
66 LDL r31,22*SZL(r3) 66 PPC_LL r31,22*SZL(r3)
67 LDL r0,3*SZL(r3) 67 PPC_LL r0,3*SZL(r3)
68 mtcrf 0x38,r0 68 mtcrf 0x38,r0
69 LDL r0,0(r3) 69 PPC_LL r0,0(r3)
70 LDL r1,SZL(r3) 70 PPC_LL r1,SZL(r3)
71 LDL r2,2*SZL(r3) 71 PPC_LL r2,2*SZL(r3)
72 mtlr r0 72 mtlr r0
73 mr r3,r4 73 mr r3,r4
74 blr 74 blr
@@ -84,52 +84,52 @@ _GLOBAL(xmon_longjmp)
84 * different ABIs, though). 84 * different ABIs, though).
85 */ 85 */
86_GLOBAL(xmon_save_regs) 86_GLOBAL(xmon_save_regs)
87 STL r0,0*SZL(r3) 87 PPC_STL r0,0*SZL(r3)
88 STL r2,2*SZL(r3) 88 PPC_STL r2,2*SZL(r3)
89 STL r3,3*SZL(r3) 89 PPC_STL r3,3*SZL(r3)
90 STL r4,4*SZL(r3) 90 PPC_STL r4,4*SZL(r3)
91 STL r5,5*SZL(r3) 91 PPC_STL r5,5*SZL(r3)
92 STL r6,6*SZL(r3) 92 PPC_STL r6,6*SZL(r3)
93 STL r7,7*SZL(r3) 93 PPC_STL r7,7*SZL(r3)
94 STL r8,8*SZL(r3) 94 PPC_STL r8,8*SZL(r3)
95 STL r9,9*SZL(r3) 95 PPC_STL r9,9*SZL(r3)
96 STL r10,10*SZL(r3) 96 PPC_STL r10,10*SZL(r3)
97 STL r11,11*SZL(r3) 97 PPC_STL r11,11*SZL(r3)
98 STL r12,12*SZL(r3) 98 PPC_STL r12,12*SZL(r3)
99 STL r13,13*SZL(r3) 99 PPC_STL r13,13*SZL(r3)
100 STL r14,14*SZL(r3) 100 PPC_STL r14,14*SZL(r3)
101 STL r15,15*SZL(r3) 101 PPC_STL r15,15*SZL(r3)
102 STL r16,16*SZL(r3) 102 PPC_STL r16,16*SZL(r3)
103 STL r17,17*SZL(r3) 103 PPC_STL r17,17*SZL(r3)
104 STL r18,18*SZL(r3) 104 PPC_STL r18,18*SZL(r3)
105 STL r19,19*SZL(r3) 105 PPC_STL r19,19*SZL(r3)
106 STL r20,20*SZL(r3) 106 PPC_STL r20,20*SZL(r3)
107 STL r21,21*SZL(r3) 107 PPC_STL r21,21*SZL(r3)
108 STL r22,22*SZL(r3) 108 PPC_STL r22,22*SZL(r3)
109 STL r23,23*SZL(r3) 109 PPC_STL r23,23*SZL(r3)
110 STL r24,24*SZL(r3) 110 PPC_STL r24,24*SZL(r3)
111 STL r25,25*SZL(r3) 111 PPC_STL r25,25*SZL(r3)
112 STL r26,26*SZL(r3) 112 PPC_STL r26,26*SZL(r3)
113 STL r27,27*SZL(r3) 113 PPC_STL r27,27*SZL(r3)
114 STL r28,28*SZL(r3) 114 PPC_STL r28,28*SZL(r3)
115 STL r29,29*SZL(r3) 115 PPC_STL r29,29*SZL(r3)
116 STL r30,30*SZL(r3) 116 PPC_STL r30,30*SZL(r3)
117 STL r31,31*SZL(r3) 117 PPC_STL r31,31*SZL(r3)
118 /* go up one stack frame for SP */ 118 /* go up one stack frame for SP */
119 LDL r4,0(r1) 119 PPC_LL r4,0(r1)
120 STL r4,1*SZL(r3) 120 PPC_STL r4,1*SZL(r3)
121 /* get caller's LR */ 121 /* get caller's LR */
122 LDL r0,LRSAVE(r4) 122 PPC_LL r0,LRSAVE(r4)
123 STL r0,_NIP-STACK_FRAME_OVERHEAD(r3) 123 PPC_STL r0,_NIP-STACK_FRAME_OVERHEAD(r3)
124 STL r0,_LINK-STACK_FRAME_OVERHEAD(r3) 124 PPC_STL r0,_LINK-STACK_FRAME_OVERHEAD(r3)
125 mfmsr r0 125 mfmsr r0
126 STL r0,_MSR-STACK_FRAME_OVERHEAD(r3) 126 PPC_STL r0,_MSR-STACK_FRAME_OVERHEAD(r3)
127 mfctr r0 127 mfctr r0
128 STL r0,_CTR-STACK_FRAME_OVERHEAD(r3) 128 PPC_STL r0,_CTR-STACK_FRAME_OVERHEAD(r3)
129 mfxer r0 129 mfxer r0
130 STL r0,_XER-STACK_FRAME_OVERHEAD(r3) 130 PPC_STL r0,_XER-STACK_FRAME_OVERHEAD(r3)
131 mfcr r0 131 mfcr r0
132 STL r0,_CCR-STACK_FRAME_OVERHEAD(r3) 132 PPC_STL r0,_CCR-STACK_FRAME_OVERHEAD(r3)
133 li r0,0 133 li r0,0
134 STL r0,_TRAP-STACK_FRAME_OVERHEAD(r3) 134 PPC_STL r0,_TRAP-STACK_FRAME_OVERHEAD(r3)
135 blr 135 blr
diff --git a/arch/powerpc/xmon/start_32.c b/arch/powerpc/xmon/start_32.c
index 69b658c0f760..c2464df4217e 100644
--- a/arch/powerpc/xmon/start_32.c
+++ b/arch/powerpc/xmon/start_32.c
@@ -11,7 +11,6 @@
11#include <linux/cuda.h> 11#include <linux/cuda.h>
12#include <linux/kernel.h> 12#include <linux/kernel.h>
13#include <linux/errno.h> 13#include <linux/errno.h>
14#include <linux/sysrq.h>
15#include <linux/bitops.h> 14#include <linux/bitops.h>
16#include <asm/xmon.h> 15#include <asm/xmon.h>
17#include <asm/prom.h> 16#include <asm/prom.h>
@@ -22,10 +21,11 @@
22#include <asm/processor.h> 21#include <asm/processor.h>
23#include <asm/delay.h> 22#include <asm/delay.h>
24#include <asm/btext.h> 23#include <asm/btext.h>
24#include <asm/time.h>
25#include "nonstdio.h"
25 26
26static volatile unsigned char __iomem *sccc, *sccd; 27static volatile unsigned char __iomem *sccc, *sccd;
27unsigned int TXRDY, RXRDY, DLAB; 28unsigned int TXRDY, RXRDY, DLAB;
28static int xmon_expect(const char *str, unsigned int timeout);
29 29
30static int use_serial; 30static int use_serial;
31static int use_screen; 31static int use_screen;
@@ -33,16 +33,6 @@ static int via_modem;
33static int xmon_use_sccb; 33static int xmon_use_sccb;
34static struct device_node *channel_node; 34static struct device_node *channel_node;
35 35
36#define TB_SPEED 25000000
37
38static inline unsigned int readtb(void)
39{
40 unsigned int ret;
41
42 asm volatile("mftb %0" : "=r" (ret) :);
43 return ret;
44}
45
46void buf_access(void) 36void buf_access(void)
47{ 37{
48 if (DLAB) 38 if (DLAB)
@@ -91,23 +81,7 @@ static unsigned long chrp_find_phys_io_base(void)
91} 81}
92#endif /* CONFIG_PPC_CHRP */ 82#endif /* CONFIG_PPC_CHRP */
93 83
94#ifdef CONFIG_MAGIC_SYSRQ 84void xmon_map_scc(void)
95static void sysrq_handle_xmon(int key, struct pt_regs *regs,
96 struct tty_struct *tty)
97{
98 xmon(regs);
99}
100
101static struct sysrq_key_op sysrq_xmon_op =
102{
103 .handler = sysrq_handle_xmon,
104 .help_msg = "Xmon",
105 .action_msg = "Entering xmon",
106};
107#endif
108
109void
110xmon_map_scc(void)
111{ 85{
112#ifdef CONFIG_PPC_MULTIPLATFORM 86#ifdef CONFIG_PPC_MULTIPLATFORM
113 volatile unsigned char __iomem *base; 87 volatile unsigned char __iomem *base;
@@ -217,8 +191,6 @@ xmon_map_scc(void)
217 RXRDY = 1; 191 RXRDY = 1;
218 DLAB = 0x80; 192 DLAB = 0x80;
219#endif /* platform */ 193#endif /* platform */
220
221 register_sysrq_key('x', &sysrq_xmon_op);
222} 194}
223 195
224static int scc_initialized = 0; 196static int scc_initialized = 0;
@@ -238,8 +210,7 @@ static inline void do_poll_adb(void)
238#endif /* CONFIG_ADB_CUDA */ 210#endif /* CONFIG_ADB_CUDA */
239} 211}
240 212
241int 213int xmon_write(void *ptr, int nb)
242xmon_write(void *handle, void *ptr, int nb)
243{ 214{
244 char *p = ptr; 215 char *p = ptr;
245 int i, c, ct; 216 int i, c, ct;
@@ -311,8 +282,7 @@ static unsigned char xmon_shift_keytab[128] =
311 "\0.\0*\0+\0\0\0\0\0/\r\0-\0" /* 0x40 - 0x4f */ 282 "\0.\0*\0+\0\0\0\0\0/\r\0-\0" /* 0x40 - 0x4f */
312 "\0\0000123456789\0\0\0"; /* 0x50 - 0x5f */ 283 "\0\0000123456789\0\0\0"; /* 0x50 - 0x5f */
313 284
314static int 285static int xmon_get_adb_key(void)
315xmon_get_adb_key(void)
316{ 286{
317 int k, t, on; 287 int k, t, on;
318 288
@@ -350,32 +320,21 @@ xmon_get_adb_key(void)
350} 320}
351#endif /* CONFIG_BOOTX_TEXT */ 321#endif /* CONFIG_BOOTX_TEXT */
352 322
353int 323int xmon_readchar(void)
354xmon_read(void *handle, void *ptr, int nb)
355{ 324{
356 char *p = ptr;
357 int i;
358
359#ifdef CONFIG_BOOTX_TEXT 325#ifdef CONFIG_BOOTX_TEXT
360 if (use_screen) { 326 if (use_screen)
361 for (i = 0; i < nb; ++i) 327 return xmon_get_adb_key();
362 *p++ = xmon_get_adb_key();
363 return i;
364 }
365#endif 328#endif
366 if (!scc_initialized) 329 if (!scc_initialized)
367 xmon_init_scc(); 330 xmon_init_scc();
368 for (i = 0; i < nb; ++i) {
369 while ((*sccc & RXRDY) == 0) 331 while ((*sccc & RXRDY) == 0)
370 do_poll_adb(); 332 do_poll_adb();
371 buf_access(); 333 buf_access();
372 *p++ = *sccd; 334 return *sccd;
373 }
374 return i;
375} 335}
376 336
377int 337int xmon_read_poll(void)
378xmon_read_poll(void)
379{ 338{
380 if ((*sccc & RXRDY) == 0) { 339 if ((*sccc & RXRDY) == 0) {
381 do_poll_adb(); 340 do_poll_adb();
@@ -395,8 +354,7 @@ static unsigned char scc_inittab[] = {
395 3, 0xc1, /* rx enable, 8 bits */ 354 3, 0xc1, /* rx enable, 8 bits */
396}; 355};
397 356
398void 357void xmon_init_scc(void)
399xmon_init_scc(void)
400{ 358{
401 if ( _machine == _MACH_chrp ) 359 if ( _machine == _MACH_chrp )
402 { 360 {
@@ -410,6 +368,7 @@ xmon_init_scc(void)
410 else if ( _machine == _MACH_Pmac ) 368 else if ( _machine == _MACH_Pmac )
411 { 369 {
412 int i, x; 370 int i, x;
371 unsigned long timeout;
413 372
414 if (channel_node != 0) 373 if (channel_node != 0)
415 pmac_call_feature( 374 pmac_call_feature(
@@ -424,8 +383,12 @@ xmon_init_scc(void)
424 PMAC_FTR_MODEM_ENABLE, 383 PMAC_FTR_MODEM_ENABLE,
425 channel_node, 0, 1); 384 channel_node, 0, 1);
426 printk(KERN_INFO "Modem powered up by debugger !\n"); 385 printk(KERN_INFO "Modem powered up by debugger !\n");
427 t0 = readtb(); 386 t0 = get_tbl();
428 while (readtb() - t0 < 3*TB_SPEED) 387 timeout = 3 * tb_ticks_per_sec;
388 if (timeout == 0)
389 /* assume 25MHz if tb_ticks_per_sec not set */
390 timeout = 75000000;
391 while (get_tbl() - t0 < timeout)
429 eieio(); 392 eieio();
430 } 393 }
431 /* use the B channel if requested */ 394 /* use the B channel if requested */
@@ -447,164 +410,19 @@ xmon_init_scc(void)
447 scc_initialized = 1; 410 scc_initialized = 1;
448 if (via_modem) { 411 if (via_modem) {
449 for (;;) { 412 for (;;) {
450 xmon_write(NULL, "ATE1V1\r", 7); 413 xmon_write("ATE1V1\r", 7);
451 if (xmon_expect("OK", 5)) { 414 if (xmon_expect("OK", 5)) {
452 xmon_write(NULL, "ATA\r", 4); 415 xmon_write("ATA\r", 4);
453 if (xmon_expect("CONNECT", 40)) 416 if (xmon_expect("CONNECT", 40))
454 break; 417 break;
455 } 418 }
456 xmon_write(NULL, "+++", 3); 419 xmon_write("+++", 3);
457 xmon_expect("OK", 3); 420 xmon_expect("OK", 3);
458 } 421 }
459 } 422 }
460} 423}
461 424
462void *xmon_stdin; 425void xmon_enter(void)
463void *xmon_stdout;
464void *xmon_stderr;
465
466int xmon_putc(int c, void *f)
467{
468 char ch = c;
469
470 if (c == '\n')
471 xmon_putc('\r', f);
472 return xmon_write(f, &ch, 1) == 1? c: -1;
473}
474
475int xmon_putchar(int c)
476{
477 return xmon_putc(c, xmon_stdout);
478}
479
480int xmon_fputs(char *str, void *f)
481{
482 int n = strlen(str);
483
484 return xmon_write(f, str, n) == n? 0: -1;
485}
486
487int
488xmon_readchar(void)
489{
490 char ch;
491
492 for (;;) {
493 switch (xmon_read(xmon_stdin, &ch, 1)) {
494 case 1:
495 return ch;
496 case -1:
497 xmon_printf("read(stdin) returned -1\r\n", 0, 0);
498 return -1;
499 }
500 }
501}
502
503static char line[256];
504static char *lineptr;
505static int lineleft;
506
507int xmon_expect(const char *str, unsigned int timeout)
508{
509 int c;
510 unsigned int t0;
511
512 timeout *= TB_SPEED;
513 t0 = readtb();
514 do {
515 lineptr = line;
516 for (;;) {
517 c = xmon_read_poll();
518 if (c == -1) {
519 if (readtb() - t0 > timeout)
520 return 0;
521 continue;
522 }
523 if (c == '\n')
524 break;
525 if (c != '\r' && lineptr < &line[sizeof(line) - 1])
526 *lineptr++ = c;
527 }
528 *lineptr = 0;
529 } while (strstr(line, str) == NULL);
530 return 1;
531}
532
533int
534xmon_getchar(void)
535{
536 int c;
537
538 if (lineleft == 0) {
539 lineptr = line;
540 for (;;) {
541 c = xmon_readchar();
542 if (c == -1 || c == 4)
543 break;
544 if (c == '\r' || c == '\n') {
545 *lineptr++ = '\n';
546 xmon_putchar('\n');
547 break;
548 }
549 switch (c) {
550 case 0177:
551 case '\b':
552 if (lineptr > line) {
553 xmon_putchar('\b');
554 xmon_putchar(' ');
555 xmon_putchar('\b');
556 --lineptr;
557 }
558 break;
559 case 'U' & 0x1F:
560 while (lineptr > line) {
561 xmon_putchar('\b');
562 xmon_putchar(' ');
563 xmon_putchar('\b');
564 --lineptr;
565 }
566 break;
567 default:
568 if (lineptr >= &line[sizeof(line) - 1])
569 xmon_putchar('\a');
570 else {
571 xmon_putchar(c);
572 *lineptr++ = c;
573 }
574 }
575 }
576 lineleft = lineptr - line;
577 lineptr = line;
578 }
579 if (lineleft == 0)
580 return -1;
581 --lineleft;
582 return *lineptr++;
583}
584
585char *
586xmon_fgets(char *str, int nb, void *f)
587{
588 char *p;
589 int c;
590
591 for (p = str; p < str + nb - 1; ) {
592 c = xmon_getchar();
593 if (c == -1) {
594 if (p == str)
595 return NULL;
596 break;
597 }
598 *p++ = c;
599 if (c == '\n')
600 break;
601 }
602 *p = 0;
603 return str;
604}
605
606void
607xmon_enter(void)
608{ 426{
609#ifdef CONFIG_ADB_PMU 427#ifdef CONFIG_ADB_PMU
610 if (_machine == _MACH_Pmac) { 428 if (_machine == _MACH_Pmac) {
@@ -613,8 +431,7 @@ xmon_enter(void)
613#endif 431#endif
614} 432}
615 433
616void 434void xmon_leave(void)
617xmon_leave(void)
618{ 435{
619#ifdef CONFIG_ADB_PMU 436#ifdef CONFIG_ADB_PMU
620 if (_machine == _MACH_Pmac) { 437 if (_machine == _MACH_Pmac) {
diff --git a/arch/powerpc/xmon/start_64.c b/arch/powerpc/xmon/start_64.c
index e50c158191e1..712552c4f242 100644
--- a/arch/powerpc/xmon/start_64.c
+++ b/arch/powerpc/xmon/start_64.c
@@ -6,182 +6,29 @@
6 * as published by the Free Software Foundation; either version 6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version. 7 * 2 of the License, or (at your option) any later version.
8 */ 8 */
9#include <linux/config.h>
10#include <linux/string.h>
11#include <linux/kernel.h>
12#include <linux/errno.h>
13#include <linux/sysrq.h>
14#include <linux/init.h>
15#include <asm/machdep.h> 9#include <asm/machdep.h>
16#include <asm/io.h>
17#include <asm/page.h>
18#include <asm/prom.h>
19#include <asm/processor.h>
20#include <asm/udbg.h> 10#include <asm/udbg.h>
21#include <asm/system.h>
22#include "nonstdio.h" 11#include "nonstdio.h"
23 12
24#ifdef CONFIG_MAGIC_SYSRQ 13void xmon_map_scc(void)
25
26static void sysrq_handle_xmon(int key, struct pt_regs *pt_regs,
27 struct tty_struct *tty)
28{
29 /* ensure xmon is enabled */
30 xmon_init(1);
31 debugger(pt_regs);
32}
33
34static struct sysrq_key_op sysrq_xmon_op =
35{ 14{
36 .handler = sysrq_handle_xmon,
37 .help_msg = "Xmon",
38 .action_msg = "Entering xmon",
39};
40
41static int __init setup_xmon_sysrq(void)
42{
43 register_sysrq_key('x', &sysrq_xmon_op);
44 return 0;
45} 15}
46__initcall(setup_xmon_sysrq);
47#endif /* CONFIG_MAGIC_SYSRQ */
48 16
49int 17int xmon_write(void *ptr, int nb)
50xmon_write(void *handle, void *ptr, int nb)
51{ 18{
52 return udbg_write(ptr, nb); 19 return udbg_write(ptr, nb);
53} 20}
54 21
55int 22int xmon_readchar(void)
56xmon_read(void *handle, void *ptr, int nb)
57{ 23{
58 return udbg_read(ptr, nb); 24 if (udbg_getc)
25 return udbg_getc();
26 return -1;
59} 27}
60 28
61int 29int xmon_read_poll(void)
62xmon_read_poll(void)
63{ 30{
64 if (udbg_getc_poll) 31 if (udbg_getc_poll)
65 return udbg_getc_poll(); 32 return udbg_getc_poll();
66 return -1; 33 return -1;
67} 34}
68
69FILE *xmon_stdin;
70FILE *xmon_stdout;
71
72int
73xmon_putc(int c, void *f)
74{
75 char ch = c;
76
77 if (c == '\n')
78 xmon_putc('\r', f);
79 return xmon_write(f, &ch, 1) == 1? c: -1;
80}
81
82int
83xmon_putchar(int c)
84{
85 return xmon_putc(c, xmon_stdout);
86}
87
88int
89xmon_fputs(char *str, void *f)
90{
91 int n = strlen(str);
92
93 return xmon_write(f, str, n) == n? 0: -1;
94}
95
96int
97xmon_readchar(void)
98{
99 char ch;
100
101 for (;;) {
102 switch (xmon_read(xmon_stdin, &ch, 1)) {
103 case 1:
104 return ch;
105 case -1:
106 xmon_printf("read(stdin) returned -1\r\n", 0, 0);
107 return -1;
108 }
109 }
110}
111
112static char line[256];
113static char *lineptr;
114static int lineleft;
115
116int
117xmon_getchar(void)
118{
119 int c;
120
121 if (lineleft == 0) {
122 lineptr = line;
123 for (;;) {
124 c = xmon_readchar();
125 if (c == -1 || c == 4)
126 break;
127 if (c == '\r' || c == '\n') {
128 *lineptr++ = '\n';
129 xmon_putchar('\n');
130 break;
131 }
132 switch (c) {
133 case 0177:
134 case '\b':
135 if (lineptr > line) {
136 xmon_putchar('\b');
137 xmon_putchar(' ');
138 xmon_putchar('\b');
139 --lineptr;
140 }
141 break;
142 case 'U' & 0x1F:
143 while (lineptr > line) {
144 xmon_putchar('\b');
145 xmon_putchar(' ');
146 xmon_putchar('\b');
147 --lineptr;
148 }
149 break;
150 default:
151 if (lineptr >= &line[sizeof(line) - 1])
152 xmon_putchar('\a');
153 else {
154 xmon_putchar(c);
155 *lineptr++ = c;
156 }
157 }
158 }
159 lineleft = lineptr - line;
160 lineptr = line;
161 }
162 if (lineleft == 0)
163 return -1;
164 --lineleft;
165 return *lineptr++;
166}
167
168char *
169xmon_fgets(char *str, int nb, void *f)
170{
171 char *p;
172 int c;
173
174 for (p = str; p < str + nb - 1; ) {
175 c = xmon_getchar();
176 if (c == -1) {
177 if (p == str)
178 return NULL;
179 break;
180 }
181 *p++ = c;
182 if (c == '\n')
183 break;
184 }
185 *p = 0;
186 return str;
187}
diff --git a/arch/powerpc/xmon/start_8xx.c b/arch/powerpc/xmon/start_8xx.c
index a48bd594cf61..4c17b0486ad5 100644
--- a/arch/powerpc/xmon/start_8xx.c
+++ b/arch/powerpc/xmon/start_8xx.c
@@ -15,273 +15,30 @@
15#include <asm/8xx_immap.h> 15#include <asm/8xx_immap.h>
16#include <asm/mpc8xx.h> 16#include <asm/mpc8xx.h>
17#include <asm/commproc.h> 17#include <asm/commproc.h>
18#include "nonstdio.h"
18 19
19extern void xmon_printf(const char *fmt, ...);
20extern int xmon_8xx_write(char *str, int nb); 20extern int xmon_8xx_write(char *str, int nb);
21extern int xmon_8xx_read_poll(void); 21extern int xmon_8xx_read_poll(void);
22extern int xmon_8xx_read_char(void); 22extern int xmon_8xx_read_char(void);
23void prom_drawhex(uint);
24void prom_drawstring(const char *str);
25 23
26static int use_screen = 1; /* default */ 24void xmon_map_scc(void)
27
28#define TB_SPEED 25000000
29
30static inline unsigned int readtb(void)
31{
32 unsigned int ret;
33
34 asm volatile("mftb %0" : "=r" (ret) :);
35 return ret;
36}
37
38void buf_access(void)
39{
40}
41
42void
43xmon_map_scc(void)
44{ 25{
45
46 cpmp = (cpm8xx_t *)&(((immap_t *)IMAP_ADDR)->im_cpm); 26 cpmp = (cpm8xx_t *)&(((immap_t *)IMAP_ADDR)->im_cpm);
47 use_screen = 0;
48
49 prom_drawstring("xmon uses serial port\n");
50} 27}
51 28
52static int scc_initialized = 0;
53
54void xmon_init_scc(void); 29void xmon_init_scc(void);
55 30
56int 31int xmon_write(void *ptr, int nb)
57xmon_write(void *handle, void *ptr, int nb)
58{ 32{
59 char *p = ptr;
60 int i, c, ct;
61
62 if (!scc_initialized)
63 xmon_init_scc();
64
65 return(xmon_8xx_write(ptr, nb)); 33 return(xmon_8xx_write(ptr, nb));
66} 34}
67 35
68int xmon_wants_key; 36int xmon_readchar(void)
69
70int
71xmon_read(void *handle, void *ptr, int nb)
72{ 37{
73 char *p = ptr; 38 return xmon_8xx_read_char();
74 int i;
75
76 if (!scc_initialized)
77 xmon_init_scc();
78
79 for (i = 0; i < nb; ++i) {
80 *p++ = xmon_8xx_read_char();
81 }
82 return i;
83} 39}
84 40
85int 41int xmon_read_poll(void)
86xmon_read_poll(void)
87{ 42{
88 return(xmon_8xx_read_poll()); 43 return(xmon_8xx_read_poll());
89} 44}
90
91void
92xmon_init_scc()
93{
94 scc_initialized = 1;
95}
96
97#if 0
98extern int (*prom_entry)(void *);
99
100int
101xmon_exit(void)
102{
103 struct prom_args {
104 char *service;
105 } args;
106
107 for (;;) {
108 args.service = "exit";
109 (*prom_entry)(&args);
110 }
111}
112#endif
113
114void *xmon_stdin;
115void *xmon_stdout;
116void *xmon_stderr;
117
118void
119xmon_init(void)
120{
121}
122
123int
124xmon_putc(int c, void *f)
125{
126 char ch = c;
127
128 if (c == '\n')
129 xmon_putc('\r', f);
130 return xmon_write(f, &ch, 1) == 1? c: -1;
131}
132
133int
134xmon_putchar(int c)
135{
136 return xmon_putc(c, xmon_stdout);
137}
138
139int
140xmon_fputs(char *str, void *f)
141{
142 int n = strlen(str);
143
144 return xmon_write(f, str, n) == n? 0: -1;
145}
146
147int
148xmon_readchar(void)
149{
150 char ch;
151
152 for (;;) {
153 switch (xmon_read(xmon_stdin, &ch, 1)) {
154 case 1:
155 return ch;
156 case -1:
157 xmon_printf("read(stdin) returned -1\r\n", 0, 0);
158 return -1;
159 }
160 }
161}
162
163static char line[256];
164static char *lineptr;
165static int lineleft;
166
167#if 0
168int xmon_expect(const char *str, unsigned int timeout)
169{
170 int c;
171 unsigned int t0;
172
173 timeout *= TB_SPEED;
174 t0 = readtb();
175 do {
176 lineptr = line;
177 for (;;) {
178 c = xmon_read_poll();
179 if (c == -1) {
180 if (readtb() - t0 > timeout)
181 return 0;
182 continue;
183 }
184 if (c == '\n')
185 break;
186 if (c != '\r' && lineptr < &line[sizeof(line) - 1])
187 *lineptr++ = c;
188 }
189 *lineptr = 0;
190 } while (strstr(line, str) == NULL);
191 return 1;
192}
193#endif
194
195int
196xmon_getchar(void)
197{
198 int c;
199
200 if (lineleft == 0) {
201 lineptr = line;
202 for (;;) {
203 c = xmon_readchar();
204 if (c == -1 || c == 4)
205 break;
206 if (c == '\r' || c == '\n') {
207 *lineptr++ = '\n';
208 xmon_putchar('\n');
209 break;
210 }
211 switch (c) {
212 case 0177:
213 case '\b':
214 if (lineptr > line) {
215 xmon_putchar('\b');
216 xmon_putchar(' ');
217 xmon_putchar('\b');
218 --lineptr;
219 }
220 break;
221 case 'U' & 0x1F:
222 while (lineptr > line) {
223 xmon_putchar('\b');
224 xmon_putchar(' ');
225 xmon_putchar('\b');
226 --lineptr;
227 }
228 break;
229 default:
230 if (lineptr >= &line[sizeof(line) - 1])
231 xmon_putchar('\a');
232 else {
233 xmon_putchar(c);
234 *lineptr++ = c;
235 }
236 }
237 }
238 lineleft = lineptr - line;
239 lineptr = line;
240 }
241 if (lineleft == 0)
242 return -1;
243 --lineleft;
244 return *lineptr++;
245}
246
247char *
248xmon_fgets(char *str, int nb, void *f)
249{
250 char *p;
251 int c;
252
253 for (p = str; p < str + nb - 1; ) {
254 c = xmon_getchar();
255 if (c == -1) {
256 if (p == str)
257 return 0;
258 break;
259 }
260 *p++ = c;
261 if (c == '\n')
262 break;
263 }
264 *p = 0;
265 return str;
266}
267
268void
269prom_drawhex(uint val)
270{
271 unsigned char buf[10];
272
273 int i;
274 for (i = 7; i >= 0; i--)
275 {
276 buf[i] = "0123456789abcdef"[val & 0x0f];
277 val >>= 4;
278 }
279 buf[8] = '\0';
280 xmon_fputs(buf, xmon_stdout);
281}
282
283void
284prom_drawstring(const char *str)
285{
286 xmon_fputs(str, xmon_stdout);
287}
diff --git a/arch/powerpc/xmon/subr_prf.c b/arch/powerpc/xmon/subr_prf.c
deleted file mode 100644
index b48738c6dd33..000000000000
--- a/arch/powerpc/xmon/subr_prf.c
+++ /dev/null
@@ -1,54 +0,0 @@
1/*
2 * Written by Cort Dougan to replace the version originally used
3 * by Paul Mackerras, which came from NetBSD and thus had copyright
4 * conflicts with Linux.
5 *
6 * This file makes liberal use of the standard linux utility
7 * routines to reduce the size of the binary. We assume we can
8 * trust some parts of Linux inside the debugger.
9 * -- Cort (cort@cs.nmt.edu)
10 *
11 * Copyright (C) 1999 Cort Dougan.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
17 */
18
19#include <linux/kernel.h>
20#include <linux/string.h>
21#include <linux/module.h>
22#include <stdarg.h>
23#include "nonstdio.h"
24
25extern int xmon_write(void *, void *, int);
26
27void xmon_vfprintf(void *f, const char *fmt, va_list ap)
28{
29 static char xmon_buf[2048];
30 int n;
31
32 n = vsprintf(xmon_buf, fmt, ap);
33 xmon_write(f, xmon_buf, n);
34}
35
36void xmon_printf(const char *fmt, ...)
37{
38 va_list ap;
39
40 va_start(ap, fmt);
41 xmon_vfprintf(stdout, fmt, ap);
42 va_end(ap);
43}
44EXPORT_SYMBOL(xmon_printf);
45
46void xmon_fprintf(void *f, const char *fmt, ...)
47{
48 va_list ap;
49
50 va_start(ap, fmt);
51 xmon_vfprintf(f, fmt, ap);
52 va_end(ap);
53}
54
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 1124f1146202..cfcb2a56d662 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -1,7 +1,7 @@
1/* 1/*
2 * Routines providing a simple monitor for use on the PowerMac. 2 * Routines providing a simple monitor for use on the PowerMac.
3 * 3 *
4 * Copyright (C) 1996 Paul Mackerras. 4 * Copyright (C) 1996-2005 Paul Mackerras.
5 * 5 *
6 * This program is free software; you can redistribute it and/or 6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License 7 * modify it under the terms of the GNU General Public License
@@ -18,6 +18,7 @@
18#include <linux/kallsyms.h> 18#include <linux/kallsyms.h>
19#include <linux/cpumask.h> 19#include <linux/cpumask.h>
20#include <linux/module.h> 20#include <linux/module.h>
21#include <linux/sysrq.h>
21 22
22#include <asm/ptrace.h> 23#include <asm/ptrace.h>
23#include <asm/string.h> 24#include <asm/string.h>
@@ -144,15 +145,10 @@ static void xmon_print_symbol(unsigned long address, const char *mid,
144static const char *getvecname(unsigned long vec); 145static const char *getvecname(unsigned long vec);
145 146
146extern int print_insn_powerpc(unsigned long, unsigned long, int); 147extern int print_insn_powerpc(unsigned long, unsigned long, int);
147extern void printf(const char *fmt, ...);
148extern void xmon_vfprintf(void *f, const char *fmt, va_list ap);
149extern int xmon_putc(int c, void *f);
150extern int putchar(int ch);
151 148
152extern void xmon_enter(void); 149extern void xmon_enter(void);
153extern void xmon_leave(void); 150extern void xmon_leave(void);
154 151
155extern int xmon_read_poll(void);
156extern long setjmp(long *); 152extern long setjmp(long *);
157extern void longjmp(long *, long); 153extern void longjmp(long *, long);
158extern void xmon_save_regs(struct pt_regs *); 154extern void xmon_save_regs(struct pt_regs *);
@@ -748,7 +744,6 @@ cmds(struct pt_regs *excp)
748 printf("%x:", smp_processor_id()); 744 printf("%x:", smp_processor_id());
749#endif /* CONFIG_SMP */ 745#endif /* CONFIG_SMP */
750 printf("mon> "); 746 printf("mon> ");
751 fflush(stdout);
752 flush_input(); 747 flush_input();
753 termch = 0; 748 termch = 0;
754 cmd = skipbl(); 749 cmd = skipbl();
@@ -1797,7 +1792,7 @@ memex(void)
1797 for(;;){ 1792 for(;;){
1798 if (!mnoread) 1793 if (!mnoread)
1799 n = mread(adrs, val, size); 1794 n = mread(adrs, val, size);
1800 printf("%.16x%c", adrs, brev? 'r': ' '); 1795 printf(REG"%c", adrs, brev? 'r': ' ');
1801 if (!mnoread) { 1796 if (!mnoread) {
1802 if (brev) 1797 if (brev)
1803 byterev(val, size); 1798 byterev(val, size);
@@ -1976,17 +1971,18 @@ prdump(unsigned long adrs, long ndump)
1976 nr = mread(adrs, temp, r); 1971 nr = mread(adrs, temp, r);
1977 adrs += nr; 1972 adrs += nr;
1978 for (m = 0; m < r; ++m) { 1973 for (m = 0; m < r; ++m) {
1979 if ((m & 7) == 0 && m > 0) 1974 if ((m & (sizeof(long) - 1)) == 0 && m > 0)
1980 putchar(' '); 1975 putchar(' ');
1981 if (m < nr) 1976 if (m < nr)
1982 printf("%.2x", temp[m]); 1977 printf("%.2x", temp[m]);
1983 else 1978 else
1984 printf("%s", fault_chars[fault_type]); 1979 printf("%s", fault_chars[fault_type]);
1985 } 1980 }
1986 if (m <= 8) 1981 for (; m < 16; ++m) {
1987 printf(" "); 1982 if ((m & (sizeof(long) - 1)) == 0)
1988 for (; m < 16; ++m) 1983 putchar(' ');
1989 printf(" "); 1984 printf(" ");
1985 }
1990 printf(" |"); 1986 printf(" |");
1991 for (m = 0; m < r; ++m) { 1987 for (m = 0; m < r; ++m) {
1992 if (m < nr) { 1988 if (m < nr) {
@@ -2151,7 +2147,6 @@ memzcan(void)
2151 ok = mread(a, &v, 1); 2147 ok = mread(a, &v, 1);
2152 if (ok && !ook) { 2148 if (ok && !ook) {
2153 printf("%.8x .. ", a); 2149 printf("%.8x .. ", a);
2154 fflush(stdout);
2155 } else if (!ok && ook) 2150 } else if (!ok && ook)
2156 printf("%.8x\n", a - mskip); 2151 printf("%.8x\n", a - mskip);
2157 ook = ok; 2152 ook = ok;
@@ -2372,7 +2367,7 @@ int
2372inchar(void) 2367inchar(void)
2373{ 2368{
2374 if (lineptr == NULL || *lineptr == 0) { 2369 if (lineptr == NULL || *lineptr == 0) {
2375 if (fgets(line, sizeof(line), stdin) == NULL) { 2370 if (xmon_gets(line, sizeof(line)) == NULL) {
2376 lineptr = NULL; 2371 lineptr = NULL;
2377 return EOF; 2372 return EOF;
2378 } 2373 }
@@ -2526,4 +2521,29 @@ void xmon_init(int enable)
2526 __debugger_dabr_match = NULL; 2521 __debugger_dabr_match = NULL;
2527 __debugger_fault_handler = NULL; 2522 __debugger_fault_handler = NULL;
2528 } 2523 }
2524 xmon_map_scc();
2525}
2526
2527#ifdef CONFIG_MAGIC_SYSRQ
2528static void sysrq_handle_xmon(int key, struct pt_regs *pt_regs,
2529 struct tty_struct *tty)
2530{
2531 /* ensure xmon is enabled */
2532 xmon_init(1);
2533 debugger(pt_regs);
2534}
2535
2536static struct sysrq_key_op sysrq_xmon_op =
2537{
2538 .handler = sysrq_handle_xmon,
2539 .help_msg = "Xmon",
2540 .action_msg = "Entering xmon",
2541};
2542
2543static int __init setup_xmon_sysrq(void)
2544{
2545 register_sysrq_key('x', &sysrq_xmon_op);
2546 return 0;
2529} 2547}
2548__initcall(setup_xmon_sysrq);
2549#endif /* CONFIG_MAGIC_SYSRQ */
diff --git a/arch/ppc/boot/include/of1275.h b/arch/ppc/boot/include/of1275.h
index 69173df76db0..4ed88acfa73a 100644
--- a/arch/ppc/boot/include/of1275.h
+++ b/arch/ppc/boot/include/of1275.h
@@ -19,6 +19,9 @@ extern prom_entry of_prom_entry;
19 19
20/* function declarations */ 20/* function declarations */
21 21
22int call_prom(const char *service, int nargs, int nret, ...);
23int call_prom_ret(const char *service, int nargs, int nret,
24 unsigned int *rets, ...);
22void * claim(unsigned int virt, unsigned int size, unsigned int align); 25void * claim(unsigned int virt, unsigned int size, unsigned int align);
23int map(unsigned int phys, unsigned int virt, unsigned int size); 26int map(unsigned int phys, unsigned int virt, unsigned int size);
24void enter(void); 27void enter(void);
diff --git a/arch/ppc/boot/of1275/Makefile b/arch/ppc/boot/of1275/Makefile
index 02e6f235d7cb..0b979c004972 100644
--- a/arch/ppc/boot/of1275/Makefile
+++ b/arch/ppc/boot/of1275/Makefile
@@ -3,4 +3,4 @@
3# 3#
4 4
5lib-y := claim.o enter.o exit.o finddevice.o getprop.o ofinit.o \ 5lib-y := claim.o enter.o exit.o finddevice.o getprop.o ofinit.o \
6 ofstdio.o read.o release.o write.o map.o 6 ofstdio.o read.o release.o write.o map.o call_prom.o
diff --git a/arch/ppc/boot/of1275/call_prom.c b/arch/ppc/boot/of1275/call_prom.c
new file mode 100644
index 000000000000..9479a3a2b8c7
--- /dev/null
+++ b/arch/ppc/boot/of1275/call_prom.c
@@ -0,0 +1,74 @@
1/*
2 * Copyright (C) 1996-2005 Paul Mackerras.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9
10#include "of1275.h"
11#include <stdarg.h>
12
13int call_prom(const char *service, int nargs, int nret, ...)
14{
15 int i;
16 struct prom_args {
17 const char *service;
18 int nargs;
19 int nret;
20 unsigned int args[12];
21 } args;
22 va_list list;
23
24 args.service = service;
25 args.nargs = nargs;
26 args.nret = nret;
27
28 va_start(list, nret);
29 for (i = 0; i < nargs; i++)
30 args.args[i] = va_arg(list, unsigned int);
31 va_end(list);
32
33 for (i = 0; i < nret; i++)
34 args.args[nargs+i] = 0;
35
36 if (of_prom_entry(&args) < 0)
37 return -1;
38
39 return (nret > 0)? args.args[nargs]: 0;
40}
41
42int call_prom_ret(const char *service, int nargs, int nret,
43 unsigned int *rets, ...)
44{
45 int i;
46 struct prom_args {
47 const char *service;
48 int nargs;
49 int nret;
50 unsigned int args[12];
51 } args;
52 va_list list;
53
54 args.service = service;
55 args.nargs = nargs;
56 args.nret = nret;
57
58 va_start(list, rets);
59 for (i = 0; i < nargs; i++)
60 args.args[i] = va_arg(list, unsigned int);
61 va_end(list);
62
63 for (i = 0; i < nret; i++)
64 args.args[nargs+i] = 0;
65
66 if (of_prom_entry(&args) < 0)
67 return -1;
68
69 if (rets != (void *) 0)
70 for (i = 1; i < nret; ++i)
71 rets[i-1] = args.args[nargs+i];
72
73 return (nret > 0)? args.args[nargs]: 0;
74}
diff --git a/arch/ppc/boot/of1275/claim.c b/arch/ppc/boot/of1275/claim.c
index 13169a5c4339..1ed3aeeff8ae 100644
--- a/arch/ppc/boot/of1275/claim.c
+++ b/arch/ppc/boot/of1275/claim.c
@@ -9,27 +9,84 @@
9 */ 9 */
10 10
11#include "of1275.h" 11#include "of1275.h"
12#include "nonstdio.h"
12 13
13void * 14/*
14claim(unsigned int virt, unsigned int size, unsigned int align) 15 * Older OF's require that when claiming a specific range of addresses,
16 * we claim the physical space in the /memory node and the virtual
17 * space in the chosen mmu node, and then do a map operation to
18 * map virtual to physical.
19 */
20static int need_map = -1;
21static ihandle chosen_mmu;
22static phandle memory;
23
24/* returns true if s2 is a prefix of s1 */
25static int string_match(const char *s1, const char *s2)
26{
27 for (; *s2; ++s2)
28 if (*s1++ != *s2)
29 return 0;
30 return 1;
31}
32
33static int check_of_version(void)
34{
35 phandle oprom, chosen;
36 char version[64];
37
38 oprom = finddevice("/openprom");
39 if (oprom == OF_INVALID_HANDLE)
40 return 0;
41 if (getprop(oprom, "model", version, sizeof(version)) <= 0)
42 return 0;
43 version[sizeof(version)-1] = 0;
44 printf("OF version = '%s'\n", version);
45 if (!string_match(version, "Open Firmware, 1.")
46 && !string_match(version, "FirmWorks,3."))
47 return 0;
48 chosen = finddevice("/chosen");
49 if (chosen == OF_INVALID_HANDLE) {
50 chosen = finddevice("/chosen@0");
51 if (chosen == OF_INVALID_HANDLE) {
52 printf("no chosen\n");
53 return 0;
54 }
55 }
56 if (getprop(chosen, "mmu", &chosen_mmu, sizeof(chosen_mmu)) <= 0) {
57 printf("no mmu\n");
58 return 0;
59 }
60 memory = (ihandle) call_prom("open", 1, 1, "/memory");
61 if (memory == OF_INVALID_HANDLE) {
62 memory = (ihandle) call_prom("open", 1, 1, "/memory@0");
63 if (memory == OF_INVALID_HANDLE) {
64 printf("no memory node\n");
65 return 0;
66 }
67 }
68 printf("old OF detected\n");
69 return 1;
70}
71
72void *claim(unsigned int virt, unsigned int size, unsigned int align)
15{ 73{
16 struct prom_args { 74 int ret;
17 char *service; 75 unsigned int result;
18 int nargs;
19 int nret;
20 unsigned int virt;
21 unsigned int size;
22 unsigned int align;
23 void *ret;
24 } args;
25 76
26 args.service = "claim"; 77 if (need_map < 0)
27 args.nargs = 3; 78 need_map = check_of_version();
28 args.nret = 1; 79 if (align || !need_map)
29 args.virt = virt; 80 return (void *) call_prom("claim", 3, 1, virt, size, align);
30 args.size = size; 81
31 args.align = align; 82 ret = call_prom_ret("call-method", 5, 2, &result, "claim", memory,
32 args.ret = (void *) 0; 83 align, size, virt);
33 (*of_prom_entry)(&args); 84 if (ret != 0 || result == -1)
34 return args.ret; 85 return (void *) -1;
86 ret = call_prom_ret("call-method", 5, 2, &result, "claim", chosen_mmu,
87 align, size, virt);
88 /* 0x12 == coherent + read/write */
89 ret = call_prom("call-method", 6, 1, "map", chosen_mmu,
90 0x12, size, virt, virt);
91 return virt;
35} 92}
diff --git a/arch/ppc/boot/of1275/finddevice.c b/arch/ppc/boot/of1275/finddevice.c
index 2c0f7cbb793e..0dcb1201b772 100644
--- a/arch/ppc/boot/of1275/finddevice.c
+++ b/arch/ppc/boot/of1275/finddevice.c
@@ -10,22 +10,7 @@
10 10
11#include "of1275.h" 11#include "of1275.h"
12 12
13phandle 13phandle finddevice(const char *name)
14finddevice(const char *name)
15{ 14{
16 struct prom_args { 15 return (phandle) call_prom("finddevice", 1, 1, name);
17 char *service;
18 int nargs;
19 int nret;
20 const char *devspec;
21 phandle device;
22 } args;
23
24 args.service = "finddevice";
25 args.nargs = 1;
26 args.nret = 1;
27 args.devspec = name;
28 args.device = OF_INVALID_HANDLE;
29 (*of_prom_entry)(&args);
30 return args.device;
31} 16}
diff --git a/arch/ppc/boot/openfirmware/Makefile b/arch/ppc/boot/openfirmware/Makefile
index 03415238fabf..83a6433459ce 100644
--- a/arch/ppc/boot/openfirmware/Makefile
+++ b/arch/ppc/boot/openfirmware/Makefile
@@ -80,8 +80,7 @@ $(obj)/note: $(utils)/mknote FORCE
80 $(call if_changed,mknote) 80 $(call if_changed,mknote)
81 81
82 82
83$(obj)/coffcrt0.o: EXTRA_AFLAGS := -traditional -DXCOFF 83$(obj)/coffcrt0.o: EXTRA_AFLAGS := -DXCOFF
84$(obj)/crt0.o: EXTRA_AFLAGS := -traditional
85targets += coffcrt0.o crt0.o 84targets += coffcrt0.o crt0.o
86$(obj)/coffcrt0.o $(obj)/crt0.o: $(common)/crt0.S FORCE 85$(obj)/coffcrt0.o $(obj)/crt0.o: $(common)/crt0.S FORCE
87 $(call if_changed_dep,as_o_S) 86 $(call if_changed_dep,as_o_S)
diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index 76a55a438f23..17a4da65e275 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -12,7 +12,7 @@ extra-$(CONFIG_6xx) += idle_6xx.o
12extra-$(CONFIG_POWER4) += idle_power4.o 12extra-$(CONFIG_POWER4) += idle_power4.o
13extra-y += vmlinux.lds 13extra-y += vmlinux.lds
14 14
15obj-y := entry.o traps.o irq.o idle.o time.o misc.o \ 15obj-y := entry.o traps.o idle.o time.o misc.o \
16 process.o align.o \ 16 process.o align.o \
17 setup.o \ 17 setup.o \
18 ppc_htab.o 18 ppc_htab.o
@@ -38,8 +38,7 @@ endif
38# These are here while we do the architecture merge 38# These are here while we do the architecture merge
39 39
40else 40else
41obj-y := irq.o idle.o \ 41obj-y := idle.o align.o
42 align.o
43obj-$(CONFIG_6xx) += l2cr.o cpu_setup_6xx.o 42obj-$(CONFIG_6xx) += l2cr.o cpu_setup_6xx.o
44obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o 43obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o
45obj-$(CONFIG_MODULES) += module.o 44obj-$(CONFIG_MODULES) += module.o
diff --git a/arch/ppc/kernel/head_booke.h b/arch/ppc/kernel/head_booke.h
index aeb349b47af3..f3d274c6b231 100644
--- a/arch/ppc/kernel/head_booke.h
+++ b/arch/ppc/kernel/head_booke.h
@@ -358,6 +358,6 @@ label:
358 NORMAL_EXCEPTION_PROLOG; \ 358 NORMAL_EXCEPTION_PROLOG; \
359 bne load_up_fpu; /* if from user, just load it up */ \ 359 bne load_up_fpu; /* if from user, just load it up */ \
360 addi r3,r1,STACK_FRAME_OVERHEAD; \ 360 addi r3,r1,STACK_FRAME_OVERHEAD; \
361 EXC_XFER_EE_LITE(0x800, KernelFP) 361 EXC_XFER_EE_LITE(0x800, kernel_fp_unavailable_exception)
362 362
363#endif /* __HEAD_BOOKE_H__ */ 363#endif /* __HEAD_BOOKE_H__ */
diff --git a/arch/ppc/kernel/irq.c b/arch/ppc/kernel/irq.c
deleted file mode 100644
index fbb2b9f8922c..000000000000
--- a/arch/ppc/kernel/irq.c
+++ /dev/null
@@ -1,165 +0,0 @@
1/*
2 * arch/ppc/kernel/irq.c
3 *
4 * Derived from arch/i386/kernel/irq.c
5 * Copyright (C) 1992 Linus Torvalds
6 * Adapted from arch/i386 by Gary Thomas
7 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
8 * Updated and modified by Cort Dougan <cort@fsmlabs.com>
9 * Copyright (C) 1996-2001 Cort Dougan
10 * Adapted for Power Macintosh by Paul Mackerras
11 * Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au)
12 * Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
13 *
14 * This file contains the code used by various IRQ handling routines:
15 * asking for different IRQ's should be done through these routines
16 * instead of just grabbing them. Thus setups with different IRQ numbers
17 * shouldn't result in any weird surprises, and installing new handlers
18 * should be easier.
19 *
20 * The MPC8xx has an interrupt mask in the SIU. If a bit is set, the
21 * interrupt is _enabled_. As expected, IRQ0 is bit 0 in the 32-bit
22 * mask register (of which only 16 are defined), hence the weird shifting
23 * and complement of the cached_irq_mask. I want to be able to stuff
24 * this right into the SIU SMASK register.
25 * Many of the prep/chrp functions are conditional compiled on CONFIG_8xx
26 * to reduce code space and undefined function references.
27 */
28
29#include <linux/errno.h>
30#include <linux/module.h>
31#include <linux/threads.h>
32#include <linux/kernel_stat.h>
33#include <linux/signal.h>
34#include <linux/sched.h>
35#include <linux/ptrace.h>
36#include <linux/ioport.h>
37#include <linux/interrupt.h>
38#include <linux/timex.h>
39#include <linux/config.h>
40#include <linux/init.h>
41#include <linux/slab.h>
42#include <linux/pci.h>
43#include <linux/delay.h>
44#include <linux/irq.h>
45#include <linux/proc_fs.h>
46#include <linux/random.h>
47#include <linux/seq_file.h>
48#include <linux/cpumask.h>
49#include <linux/profile.h>
50#include <linux/bitops.h>
51
52#include <asm/uaccess.h>
53#include <asm/system.h>
54#include <asm/io.h>
55#include <asm/pgtable.h>
56#include <asm/irq.h>
57#include <asm/cache.h>
58#include <asm/prom.h>
59#include <asm/ptrace.h>
60#include <asm/machdep.h>
61
62#define NR_MASK_WORDS ((NR_IRQS + 31) / 32)
63
64extern atomic_t ipi_recv;
65extern atomic_t ipi_sent;
66
67#define MAXCOUNT 10000000
68
69int ppc_spurious_interrupts = 0;
70struct irqaction *ppc_irq_action[NR_IRQS];
71unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
72unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
73atomic_t ppc_n_lost_interrupts;
74
75#ifdef CONFIG_TAU_INT
76extern int tau_initialized;
77extern int tau_interrupts(int);
78#endif
79
80int show_interrupts(struct seq_file *p, void *v)
81{
82 int i = *(loff_t *) v, j;
83 struct irqaction * action;
84 unsigned long flags;
85
86 if (i == 0) {
87 seq_puts(p, " ");
88 for (j=0; j<NR_CPUS; j++)
89 if (cpu_online(j))
90 seq_printf(p, "CPU%d ", j);
91 seq_putc(p, '\n');
92 }
93
94 if (i < NR_IRQS) {
95 spin_lock_irqsave(&irq_desc[i].lock, flags);
96 action = irq_desc[i].action;
97 if ( !action || !action->handler )
98 goto skip;
99 seq_printf(p, "%3d: ", i);
100#ifdef CONFIG_SMP
101 for (j = 0; j < NR_CPUS; j++)
102 if (cpu_online(j))
103 seq_printf(p, "%10u ",
104 kstat_cpu(j).irqs[i]);
105#else
106 seq_printf(p, "%10u ", kstat_irqs(i));
107#endif /* CONFIG_SMP */
108 if (irq_desc[i].handler)
109 seq_printf(p, " %s ", irq_desc[i].handler->typename);
110 else
111 seq_puts(p, " None ");
112 seq_printf(p, "%s", (irq_desc[i].status & IRQ_LEVEL) ? "Level " : "Edge ");
113 seq_printf(p, " %s", action->name);
114 for (action = action->next; action; action = action->next)
115 seq_printf(p, ", %s", action->name);
116 seq_putc(p, '\n');
117skip:
118 spin_unlock_irqrestore(&irq_desc[i].lock, flags);
119 } else if (i == NR_IRQS) {
120#ifdef CONFIG_TAU_INT
121 if (tau_initialized){
122 seq_puts(p, "TAU: ");
123 for (j = 0; j < NR_CPUS; j++)
124 if (cpu_online(j))
125 seq_printf(p, "%10u ", tau_interrupts(j));
126 seq_puts(p, " PowerPC Thermal Assist (cpu temp)\n");
127 }
128#endif
129#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_MERGE)
130 /* should this be per processor send/receive? */
131 seq_printf(p, "IPI (recv/sent): %10u/%u\n",
132 atomic_read(&ipi_recv), atomic_read(&ipi_sent));
133#endif
134 seq_printf(p, "BAD: %10u\n", ppc_spurious_interrupts);
135 }
136 return 0;
137}
138
139void do_IRQ(struct pt_regs *regs)
140{
141 int irq, first = 1;
142 irq_enter();
143
144 /*
145 * Every platform is required to implement ppc_md.get_irq.
146 * This function will either return an irq number or -1 to
147 * indicate there are no more pending. But the first time
148 * through the loop this means there wasn't and IRQ pending.
149 * The value -2 is for buggy hardware and means that this IRQ
150 * has already been handled. -- Tom
151 */
152 while ((irq = ppc_md.get_irq(regs)) >= 0) {
153 __do_IRQ(irq, regs);
154 first = 0;
155 }
156 if (irq != -2 && first)
157 /* That's not SMP safe ... but who cares ? */
158 ppc_spurious_interrupts++;
159 irq_exit();
160}
161
162void __init init_IRQ(void)
163{
164 ppc_md.init_IRQ();
165}
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index ae6af29938a1..5e61124581d0 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -497,9 +497,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
497 * and invalidate the corresponding instruction cache blocks. 497 * and invalidate the corresponding instruction cache blocks.
498 * This is a no-op on the 601. 498 * This is a no-op on the 601.
499 * 499 *
500 * flush_icache_range(unsigned long start, unsigned long stop) 500 * __flush_icache_range(unsigned long start, unsigned long stop)
501 */ 501 */
502_GLOBAL(flush_icache_range) 502_GLOBAL(__flush_icache_range)
503BEGIN_FTR_SECTION 503BEGIN_FTR_SECTION
504 blr /* for 601, do nothing */ 504 blr /* for 601, do nothing */
505END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE) 505END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index e0ca61b37f4f..66073f775193 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -46,6 +46,7 @@
46#include <asm/btext.h> 46#include <asm/btext.h>
47#include <asm/div64.h> 47#include <asm/div64.h>
48#include <asm/xmon.h> 48#include <asm/xmon.h>
49#include <asm/signal.h>
49 50
50#ifdef CONFIG_8xx 51#ifdef CONFIG_8xx
51#include <asm/commproc.h> 52#include <asm/commproc.h>
@@ -57,7 +58,6 @@ extern void machine_check_exception(struct pt_regs *regs);
57extern void alignment_exception(struct pt_regs *regs); 58extern void alignment_exception(struct pt_regs *regs);
58extern void program_check_exception(struct pt_regs *regs); 59extern void program_check_exception(struct pt_regs *regs);
59extern void single_step_exception(struct pt_regs *regs); 60extern void single_step_exception(struct pt_regs *regs);
60extern int do_signal(sigset_t *, struct pt_regs *);
61extern int pmac_newworld; 61extern int pmac_newworld;
62extern int sys_sigreturn(struct pt_regs *regs); 62extern int sys_sigreturn(struct pt_regs *regs);
63 63
@@ -78,7 +78,6 @@ EXPORT_SYMBOL(program_check_exception);
78EXPORT_SYMBOL(single_step_exception); 78EXPORT_SYMBOL(single_step_exception);
79EXPORT_SYMBOL(sys_sigreturn); 79EXPORT_SYMBOL(sys_sigreturn);
80EXPORT_SYMBOL(ppc_n_lost_interrupts); 80EXPORT_SYMBOL(ppc_n_lost_interrupts);
81EXPORT_SYMBOL(ppc_lost_interrupts);
82 81
83EXPORT_SYMBOL(ISA_DMA_THRESHOLD); 82EXPORT_SYMBOL(ISA_DMA_THRESHOLD);
84EXPORT_SYMBOL(DMA_MODE_READ); 83EXPORT_SYMBOL(DMA_MODE_READ);
@@ -176,6 +175,7 @@ EXPORT_SYMBOL(pci_bus_to_phys);
176#endif /* CONFIG_PCI */ 175#endif /* CONFIG_PCI */
177 176
178#ifdef CONFIG_NOT_COHERENT_CACHE 177#ifdef CONFIG_NOT_COHERENT_CACHE
178extern void flush_dcache_all(void);
179EXPORT_SYMBOL(flush_dcache_all); 179EXPORT_SYMBOL(flush_dcache_all);
180#endif 180#endif
181 181
@@ -217,9 +217,6 @@ EXPORT_SYMBOL(adb_try_handler_change);
217EXPORT_SYMBOL(cuda_request); 217EXPORT_SYMBOL(cuda_request);
218EXPORT_SYMBOL(cuda_poll); 218EXPORT_SYMBOL(cuda_poll);
219#endif /* CONFIG_ADB_CUDA */ 219#endif /* CONFIG_ADB_CUDA */
220#ifdef CONFIG_PPC_MULTIPLATFORM
221EXPORT_SYMBOL(_machine);
222#endif
223#ifdef CONFIG_PPC_PMAC 220#ifdef CONFIG_PPC_PMAC
224EXPORT_SYMBOL(sys_ctrler); 221EXPORT_SYMBOL(sys_ctrler);
225EXPORT_SYMBOL(pmac_newworld); 222EXPORT_SYMBOL(pmac_newworld);
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index 6bcb85d2b7fd..dc55e1abc45b 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -76,6 +76,7 @@ unsigned int DMA_MODE_WRITE;
76 76
77#ifdef CONFIG_PPC_MULTIPLATFORM 77#ifdef CONFIG_PPC_MULTIPLATFORM
78int _machine = 0; 78int _machine = 0;
79EXPORT_SYMBOL(_machine);
79 80
80extern void prep_init(unsigned long r3, unsigned long r4, 81extern void prep_init(unsigned long r3, unsigned long r4,
81 unsigned long r5, unsigned long r6, unsigned long r7); 82 unsigned long r5, unsigned long r6, unsigned long r7);
diff --git a/arch/ppc/platforms/pmac_pic.c b/arch/ppc/platforms/pmac_pic.c
index 9f2d95ea8564..4742bf609357 100644
--- a/arch/ppc/platforms/pmac_pic.c
+++ b/arch/ppc/platforms/pmac_pic.c
@@ -75,6 +75,9 @@ static DEFINE_SPINLOCK(pmac_pic_lock);
75#define GATWICK_IRQ_POOL_SIZE 10 75#define GATWICK_IRQ_POOL_SIZE 10
76static struct interrupt_info gatwick_int_pool[GATWICK_IRQ_POOL_SIZE]; 76static struct interrupt_info gatwick_int_pool[GATWICK_IRQ_POOL_SIZE];
77 77
78#define NR_MASK_WORDS ((NR_IRQS + 31) / 32)
79static unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
80
78/* 81/*
79 * Mark an irq as "lost". This is only used on the pmac 82 * Mark an irq as "lost". This is only used on the pmac
80 * since it can lose interrupts (see pmac_set_irq_mask). 83 * since it can lose interrupts (see pmac_set_irq_mask).
diff --git a/arch/ppc/platforms/prep_setup.c b/arch/ppc/platforms/prep_setup.c
index 067d7d53b81e..4415748071dc 100644
--- a/arch/ppc/platforms/prep_setup.c
+++ b/arch/ppc/platforms/prep_setup.c
@@ -61,6 +61,15 @@
61#include <asm/pci-bridge.h> 61#include <asm/pci-bridge.h>
62#include <asm/todc.h> 62#include <asm/todc.h>
63 63
64/* prep registers for L2 */
65#define CACHECRBA 0x80000823 /* Cache configuration register address */
66#define L2CACHE_MASK 0x03 /* Mask for 2 L2 Cache bits */
67#define L2CACHE_512KB 0x00 /* 512KB */
68#define L2CACHE_256KB 0x01 /* 256KB */
69#define L2CACHE_1MB 0x02 /* 1MB */
70#define L2CACHE_NONE 0x03 /* NONE */
71#define L2CACHE_PARITY 0x08 /* Mask for L2 Cache Parity Protected bit */
72
64TODC_ALLOC(); 73TODC_ALLOC();
65 74
66unsigned char ucSystemType; 75unsigned char ucSystemType;
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
index 29552348e581..c9d32db9d76a 100644
--- a/arch/ppc64/Kconfig
+++ b/arch/ppc64/Kconfig
@@ -297,6 +297,10 @@ config HAVE_ARCH_EARLY_PFN_TO_NID
297 def_bool y 297 def_bool y
298 depends on NEED_MULTIPLE_NODES 298 depends on NEED_MULTIPLE_NODES
299 299
300config ARCH_MEMORY_PROBE
301 def_bool y
302 depends on MEMORY_HOTPLUG
303
300# Some NUMA nodes have memory ranges that span 304# Some NUMA nodes have memory ranges that span
301# other nodes. Even though a pfn is valid and 305# other nodes. Even though a pfn is valid and
302# between a node's start and end pfns, it may not 306# between a node's start and end pfns, it may not
diff --git a/arch/ppc64/boot/addRamDisk.c b/arch/ppc64/boot/addRamDisk.c
index 7f2c09473394..c02a99952be7 100644
--- a/arch/ppc64/boot/addRamDisk.c
+++ b/arch/ppc64/boot/addRamDisk.c
@@ -5,11 +5,59 @@
5#include <sys/types.h> 5#include <sys/types.h>
6#include <sys/stat.h> 6#include <sys/stat.h>
7#include <string.h> 7#include <string.h>
8#include <elf.h>
8 9
9#define ElfHeaderSize (64 * 1024) 10#define ElfHeaderSize (64 * 1024)
10#define ElfPages (ElfHeaderSize / 4096) 11#define ElfPages (ElfHeaderSize / 4096)
11#define KERNELBASE (0xc000000000000000) 12#define KERNELBASE (0xc000000000000000)
13#define _ALIGN_UP(addr,size) (((addr)+((size)-1))&(~((size)-1)))
12 14
15struct addr_range {
16 unsigned long long addr;
17 unsigned long memsize;
18 unsigned long offset;
19};
20
21static int check_elf64(void *p, int size, struct addr_range *r)
22{
23 Elf64_Ehdr *elf64 = p;
24 Elf64_Phdr *elf64ph;
25
26 if (elf64->e_ident[EI_MAG0] != ELFMAG0 ||
27 elf64->e_ident[EI_MAG1] != ELFMAG1 ||
28 elf64->e_ident[EI_MAG2] != ELFMAG2 ||
29 elf64->e_ident[EI_MAG3] != ELFMAG3 ||
30 elf64->e_ident[EI_CLASS] != ELFCLASS64 ||
31 elf64->e_ident[EI_DATA] != ELFDATA2MSB ||
32 elf64->e_type != ET_EXEC || elf64->e_machine != EM_PPC64)
33 return 0;
34
35 if ((elf64->e_phoff + sizeof(Elf64_Phdr)) > size)
36 return 0;
37
38 elf64ph = (Elf64_Phdr *) ((unsigned long)elf64 +
39 (unsigned long)elf64->e_phoff);
40
41 r->memsize = (unsigned long)elf64ph->p_memsz;
42 r->offset = (unsigned long)elf64ph->p_offset;
43 r->addr = (unsigned long long)elf64ph->p_vaddr;
44
45#ifdef DEBUG
46 printf("PPC64 ELF file, ph:\n");
47 printf("p_type 0x%08x\n", elf64ph->p_type);
48 printf("p_flags 0x%08x\n", elf64ph->p_flags);
49 printf("p_offset 0x%016llx\n", elf64ph->p_offset);
50 printf("p_vaddr 0x%016llx\n", elf64ph->p_vaddr);
51 printf("p_paddr 0x%016llx\n", elf64ph->p_paddr);
52 printf("p_filesz 0x%016llx\n", elf64ph->p_filesz);
53 printf("p_memsz 0x%016llx\n", elf64ph->p_memsz);
54 printf("p_align 0x%016llx\n", elf64ph->p_align);
55 printf("... skipping 0x%08lx bytes of ELF header\n",
56 (unsigned long)elf64ph->p_offset);
57#endif
58
59 return 64;
60}
13void get4k(FILE *file, char *buf ) 61void get4k(FILE *file, char *buf )
14{ 62{
15 unsigned j; 63 unsigned j;
@@ -34,97 +82,92 @@ void death(const char *msg, FILE *fdesc, const char *fname)
34int main(int argc, char **argv) 82int main(int argc, char **argv)
35{ 83{
36 char inbuf[4096]; 84 char inbuf[4096];
37 FILE *ramDisk = NULL; 85 struct addr_range vmlinux;
38 FILE *sysmap = NULL; 86 FILE *ramDisk;
39 FILE *inputVmlinux = NULL; 87 FILE *inputVmlinux;
40 FILE *outputVmlinux = NULL; 88 FILE *outputVmlinux;
41 89
42 unsigned i = 0; 90 char *rd_name, *lx_name, *out_name;
43 unsigned long ramFileLen = 0; 91
44 unsigned long ramLen = 0; 92 size_t i;
45 unsigned long roundR = 0; 93 unsigned long ramFileLen;
46 94 unsigned long ramLen;
47 unsigned long sysmapFileLen = 0; 95 unsigned long roundR;
48 unsigned long sysmapLen = 0; 96 unsigned long offset_end;
49 unsigned long sysmapPages = 0; 97
50 char* ptr_end = NULL; 98 unsigned long kernelLen;
51 unsigned long offset_end = 0; 99 unsigned long actualKernelLen;
52 100 unsigned long round;
53 unsigned long kernelLen = 0; 101 unsigned long roundedKernelLen;
54 unsigned long actualKernelLen = 0; 102 unsigned long ramStartOffs;
55 unsigned long round = 0; 103 unsigned long ramPages;
56 unsigned long roundedKernelLen = 0; 104 unsigned long roundedKernelPages;
57 unsigned long ramStartOffs = 0; 105 unsigned long hvReleaseData;
58 unsigned long ramPages = 0;
59 unsigned long roundedKernelPages = 0;
60 unsigned long hvReleaseData = 0;
61 u_int32_t eyeCatcher = 0xc8a5d9c4; 106 u_int32_t eyeCatcher = 0xc8a5d9c4;
62 unsigned long naca = 0; 107 unsigned long naca;
63 unsigned long xRamDisk = 0; 108 unsigned long xRamDisk;
64 unsigned long xRamDiskSize = 0; 109 unsigned long xRamDiskSize;
65 long padPages = 0; 110 long padPages;
66 111
67 112
68 if (argc < 2) { 113 if (argc < 2) {
69 fprintf(stderr, "Name of RAM disk file missing.\n"); 114 fprintf(stderr, "Name of RAM disk file missing.\n");
70 exit(1); 115 exit(1);
71 } 116 }
117 rd_name = argv[1];
72 118
73 if (argc < 3) { 119 if (argc < 3) {
74 fprintf(stderr, "Name of System Map input file is missing.\n");
75 exit(1);
76 }
77
78 if (argc < 4) {
79 fprintf(stderr, "Name of vmlinux file missing.\n"); 120 fprintf(stderr, "Name of vmlinux file missing.\n");
80 exit(1); 121 exit(1);
81 } 122 }
123 lx_name = argv[2];
82 124
83 if (argc < 5) { 125 if (argc < 4) {
84 fprintf(stderr, "Name of vmlinux output file missing.\n"); 126 fprintf(stderr, "Name of vmlinux output file missing.\n");
85 exit(1); 127 exit(1);
86 } 128 }
129 out_name = argv[3];
87 130
88 131
89 ramDisk = fopen(argv[1], "r"); 132 ramDisk = fopen(rd_name, "r");
90 if ( ! ramDisk ) { 133 if ( ! ramDisk ) {
91 fprintf(stderr, "RAM disk file \"%s\" failed to open.\n", argv[1]); 134 fprintf(stderr, "RAM disk file \"%s\" failed to open.\n", rd_name);
92 exit(1); 135 exit(1);
93 } 136 }
94 137
95 sysmap = fopen(argv[2], "r"); 138 inputVmlinux = fopen(lx_name, "r");
96 if ( ! sysmap ) {
97 fprintf(stderr, "System Map file \"%s\" failed to open.\n", argv[2]);
98 exit(1);
99 }
100
101 inputVmlinux = fopen(argv[3], "r");
102 if ( ! inputVmlinux ) { 139 if ( ! inputVmlinux ) {
103 fprintf(stderr, "vmlinux file \"%s\" failed to open.\n", argv[3]); 140 fprintf(stderr, "vmlinux file \"%s\" failed to open.\n", lx_name);
104 exit(1); 141 exit(1);
105 } 142 }
106 143
107 outputVmlinux = fopen(argv[4], "w+"); 144 outputVmlinux = fopen(out_name, "w+");
108 if ( ! outputVmlinux ) { 145 if ( ! outputVmlinux ) {
109 fprintf(stderr, "output vmlinux file \"%s\" failed to open.\n", argv[4]); 146 fprintf(stderr, "output vmlinux file \"%s\" failed to open.\n", out_name);
110 exit(1); 147 exit(1);
111 } 148 }
112 149
113 150 i = fread(inbuf, 1, sizeof(inbuf), inputVmlinux);
114 151 if (i != sizeof(inbuf)) {
152 fprintf(stderr, "can not read vmlinux file %s: %u\n", lx_name, i);
153 exit(1);
154 }
155
156 i = check_elf64(inbuf, sizeof(inbuf), &vmlinux);
157 if (i == 0) {
158 fprintf(stderr, "You must have a linux kernel specified as argv[2]\n");
159 exit(1);
160 }
161
115 /* Input Vmlinux file */ 162 /* Input Vmlinux file */
116 fseek(inputVmlinux, 0, SEEK_END); 163 fseek(inputVmlinux, 0, SEEK_END);
117 kernelLen = ftell(inputVmlinux); 164 kernelLen = ftell(inputVmlinux);
118 fseek(inputVmlinux, 0, SEEK_SET); 165 fseek(inputVmlinux, 0, SEEK_SET);
119 printf("kernel file size = %d\n", kernelLen); 166 printf("kernel file size = %lu\n", kernelLen);
120 if ( kernelLen == 0 ) {
121 fprintf(stderr, "You must have a linux kernel specified as argv[3]\n");
122 exit(1);
123 }
124 167
125 actualKernelLen = kernelLen - ElfHeaderSize; 168 actualKernelLen = kernelLen - ElfHeaderSize;
126 169
127 printf("actual kernel length (minus ELF header) = %d\n", actualKernelLen); 170 printf("actual kernel length (minus ELF header) = %lu\n", actualKernelLen);
128 171
129 round = actualKernelLen % 4096; 172 round = actualKernelLen % 4096;
130 roundedKernelLen = actualKernelLen; 173 roundedKernelLen = actualKernelLen;
@@ -134,39 +177,7 @@ int main(int argc, char **argv)
134 roundedKernelPages = roundedKernelLen / 4096; 177 roundedKernelPages = roundedKernelLen / 4096;
135 printf("Vmlinux pages to copy = %ld/0x%lx \n", roundedKernelPages, roundedKernelPages); 178 printf("Vmlinux pages to copy = %ld/0x%lx \n", roundedKernelPages, roundedKernelPages);
136 179
137 180 offset_end = _ALIGN_UP(vmlinux.memsize, 4096);
138
139 /* Input System Map file */
140 /* (needs to be processed simply to determine if we need to add pad pages due to the static variables not being included in the vmlinux) */
141 fseek(sysmap, 0, SEEK_END);
142 sysmapFileLen = ftell(sysmap);
143 fseek(sysmap, 0, SEEK_SET);
144 printf("%s file size = %ld/0x%lx \n", argv[2], sysmapFileLen, sysmapFileLen);
145
146 sysmapLen = sysmapFileLen;
147
148 roundR = 4096 - (sysmapLen % 4096);
149 if (roundR) {
150 printf("Rounding System Map file up to a multiple of 4096, adding %ld/0x%lx \n", roundR, roundR);
151 sysmapLen += roundR;
152 }
153 printf("Rounded System Map size is %ld/0x%lx \n", sysmapLen, sysmapLen);
154
155 /* Process the Sysmap file to determine where _end is */
156 sysmapPages = sysmapLen / 4096;
157 /* read the whole file line by line, expect that it doesn't fail */
158 while ( fgets(inbuf, 4096, sysmap) ) ;
159 /* search for _end in the last page of the system map */
160 ptr_end = strstr(inbuf, " _end");
161 if (!ptr_end) {
162 fprintf(stderr, "Unable to find _end in the sysmap file \n");
163 fprintf(stderr, "inbuf: \n");
164 fprintf(stderr, "%s \n", inbuf);
165 exit(1);
166 }
167 printf("Found _end in the last page of the sysmap - backing up 10 characters it looks like %s", ptr_end-10);
168 /* convert address of _end in system map to hex offset. */
169 offset_end = (unsigned int)strtol(ptr_end-10, NULL, 16);
170 /* calc how many pages we need to insert between the vmlinux and the start of the ram disk */ 181 /* calc how many pages we need to insert between the vmlinux and the start of the ram disk */
171 padPages = offset_end/4096 - roundedKernelPages; 182 padPages = offset_end/4096 - roundedKernelPages;
172 183
@@ -194,7 +205,7 @@ int main(int argc, char **argv)
194 fseek(ramDisk, 0, SEEK_END); 205 fseek(ramDisk, 0, SEEK_END);
195 ramFileLen = ftell(ramDisk); 206 ramFileLen = ftell(ramDisk);
196 fseek(ramDisk, 0, SEEK_SET); 207 fseek(ramDisk, 0, SEEK_SET);
197 printf("%s file size = %ld/0x%lx \n", argv[1], ramFileLen, ramFileLen); 208 printf("%s file size = %ld/0x%lx \n", rd_name, ramFileLen, ramFileLen);
198 209
199 ramLen = ramFileLen; 210 ramLen = ramFileLen;
200 211
@@ -248,19 +259,19 @@ int main(int argc, char **argv)
248 /* fseek to the hvReleaseData pointer */ 259 /* fseek to the hvReleaseData pointer */
249 fseek(outputVmlinux, ElfHeaderSize + 0x24, SEEK_SET); 260 fseek(outputVmlinux, ElfHeaderSize + 0x24, SEEK_SET);
250 if (fread(&hvReleaseData, 4, 1, outputVmlinux) != 1) { 261 if (fread(&hvReleaseData, 4, 1, outputVmlinux) != 1) {
251 death("Could not read hvReleaseData pointer\n", outputVmlinux, argv[4]); 262 death("Could not read hvReleaseData pointer\n", outputVmlinux, out_name);
252 } 263 }
253 hvReleaseData = ntohl(hvReleaseData); /* Convert to native int */ 264 hvReleaseData = ntohl(hvReleaseData); /* Convert to native int */
254 printf("hvReleaseData is at %08x\n", hvReleaseData); 265 printf("hvReleaseData is at %08lx\n", hvReleaseData);
255 266
256 /* fseek to the hvReleaseData */ 267 /* fseek to the hvReleaseData */
257 fseek(outputVmlinux, ElfHeaderSize + hvReleaseData, SEEK_SET); 268 fseek(outputVmlinux, ElfHeaderSize + hvReleaseData, SEEK_SET);
258 if (fread(inbuf, 0x40, 1, outputVmlinux) != 1) { 269 if (fread(inbuf, 0x40, 1, outputVmlinux) != 1) {
259 death("Could not read hvReleaseData\n", outputVmlinux, argv[4]); 270 death("Could not read hvReleaseData\n", outputVmlinux, out_name);
260 } 271 }
261 /* Check hvReleaseData sanity */ 272 /* Check hvReleaseData sanity */
262 if (memcmp(inbuf, &eyeCatcher, 4) != 0) { 273 if (memcmp(inbuf, &eyeCatcher, 4) != 0) {
263 death("hvReleaseData is invalid\n", outputVmlinux, argv[4]); 274 death("hvReleaseData is invalid\n", outputVmlinux, out_name);
264 } 275 }
265 /* Get the naca pointer */ 276 /* Get the naca pointer */
266 naca = ntohl(*((u_int32_t*) &inbuf[0x0C])) - KERNELBASE; 277 naca = ntohl(*((u_int32_t*) &inbuf[0x0C])) - KERNELBASE;
@@ -269,13 +280,13 @@ int main(int argc, char **argv)
269 /* fseek to the naca */ 280 /* fseek to the naca */
270 fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET); 281 fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET);
271 if (fread(inbuf, 0x18, 1, outputVmlinux) != 1) { 282 if (fread(inbuf, 0x18, 1, outputVmlinux) != 1) {
272 death("Could not read naca\n", outputVmlinux, argv[4]); 283 death("Could not read naca\n", outputVmlinux, out_name);
273 } 284 }
274 xRamDisk = ntohl(*((u_int32_t *) &inbuf[0x0c])); 285 xRamDisk = ntohl(*((u_int32_t *) &inbuf[0x0c]));
275 xRamDiskSize = ntohl(*((u_int32_t *) &inbuf[0x14])); 286 xRamDiskSize = ntohl(*((u_int32_t *) &inbuf[0x14]));
276 /* Make sure a RAM disk isn't already present */ 287 /* Make sure a RAM disk isn't already present */
277 if ((xRamDisk != 0) || (xRamDiskSize != 0)) { 288 if ((xRamDisk != 0) || (xRamDiskSize != 0)) {
278 death("RAM disk is already attached to this kernel\n", outputVmlinux, argv[4]); 289 death("RAM disk is already attached to this kernel\n", outputVmlinux, out_name);
279 } 290 }
280 /* Fill in the values */ 291 /* Fill in the values */
281 *((u_int32_t *) &inbuf[0x0c]) = htonl(ramStartOffs); 292 *((u_int32_t *) &inbuf[0x0c]) = htonl(ramStartOffs);
@@ -285,15 +296,15 @@ int main(int argc, char **argv)
285 fflush(outputVmlinux); 296 fflush(outputVmlinux);
286 fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET); 297 fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET);
287 if (fwrite(inbuf, 0x18, 1, outputVmlinux) != 1) { 298 if (fwrite(inbuf, 0x18, 1, outputVmlinux) != 1) {
288 death("Could not write naca\n", outputVmlinux, argv[4]); 299 death("Could not write naca\n", outputVmlinux, out_name);
289 } 300 }
290 printf("Ram Disk of 0x%lx pages is attached to the kernel at offset 0x%08x\n", 301 printf("Ram Disk of 0x%lx pages is attached to the kernel at offset 0x%08lx\n",
291 ramPages, ramStartOffs); 302 ramPages, ramStartOffs);
292 303
293 /* Done */ 304 /* Done */
294 fclose(outputVmlinux); 305 fclose(outputVmlinux);
295 /* Set permission to executable */ 306 /* Set permission to executable */
296 chmod(argv[4], S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH); 307 chmod(out_name, S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH);
297 308
298 return 0; 309 return 0;
299} 310}
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index c441aebe7648..58b19f107656 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -11,12 +11,11 @@ obj-y := misc.o prom.o
11 11
12endif 12endif
13 13
14obj-y += irq.o idle.o dma.o \ 14obj-y += idle.o dma.o \
15 align.o pacaData.o \ 15 align.o \
16 udbg.o ioctl32.o \ 16 udbg.o \
17 rtc.o \ 17 rtc.o \
18 cpu_setup_power4.o \ 18 iommu.o vdso.o
19 iommu.o sysfs.o vdso.o firmware.o
20obj-y += vdso32/ vdso64/ 19obj-y += vdso32/ vdso64/
21 20
22pci-obj-$(CONFIG_PPC_MULTIPLATFORM) += pci_dn.o pci_direct_iommu.o 21pci-obj-$(CONFIG_PPC_MULTIPLATFORM) += pci_dn.o pci_direct_iommu.o
@@ -31,15 +30,10 @@ endif
31obj-$(CONFIG_PPC_PSERIES) += udbg_16550.o 30obj-$(CONFIG_PPC_PSERIES) += udbg_16550.o
32 31
33obj-$(CONFIG_KEXEC) += machine_kexec.o 32obj-$(CONFIG_KEXEC) += machine_kexec.o
34obj-$(CONFIG_EEH) += eeh.o
35obj-$(CONFIG_PROC_FS) += proc_ppc64.o
36obj-$(CONFIG_MODULES) += module.o 33obj-$(CONFIG_MODULES) += module.o
37ifneq ($(CONFIG_PPC_MERGE),y) 34ifneq ($(CONFIG_PPC_MERGE),y)
38obj-$(CONFIG_MODULES) += ppc_ksyms.o 35obj-$(CONFIG_MODULES) += ppc_ksyms.o
39endif 36endif
40obj-$(CONFIG_PPC_RTAS) += rtas_pci.o
41obj-$(CONFIG_SCANLOG) += scanlog.o
42obj-$(CONFIG_LPARCFG) += lparcfg.o
43obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o 37obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o
44ifneq ($(CONFIG_PPC_MERGE),y) 38ifneq ($(CONFIG_PPC_MERGE),y)
45obj-$(CONFIG_BOOTX_TEXT) += btext.o 39obj-$(CONFIG_BOOTX_TEXT) += btext.o
@@ -52,8 +46,6 @@ obj-$(CONFIG_PPC_MAPLE) += udbg_16550.o
52 46
53obj-$(CONFIG_KPROBES) += kprobes.o 47obj-$(CONFIG_KPROBES) += kprobes.o
54 48
55CFLAGS_ioctl32.o += -Ifs/
56
57ifneq ($(CONFIG_PPC_MERGE),y) 49ifneq ($(CONFIG_PPC_MERGE),y)
58ifeq ($(CONFIG_PPC_ISERIES),y) 50ifeq ($(CONFIG_PPC_ISERIES),y)
59arch/ppc64/kernel/head.o: arch/powerpc/kernel/lparmap.s 51arch/ppc64/kernel/head.o: arch/powerpc/kernel/lparmap.s
diff --git a/arch/ppc64/kernel/asm-offsets.c b/arch/ppc64/kernel/asm-offsets.c
index bce9065da6cb..84ab5c18ef52 100644
--- a/arch/ppc64/kernel/asm-offsets.c
+++ b/arch/ppc64/kernel/asm-offsets.c
@@ -74,7 +74,6 @@ int main(void)
74 DEFINE(ICACHEL1LINESIZE, offsetof(struct ppc64_caches, iline_size)); 74 DEFINE(ICACHEL1LINESIZE, offsetof(struct ppc64_caches, iline_size));
75 DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size)); 75 DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size));
76 DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page)); 76 DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page));
77 DEFINE(PLATFORM, offsetof(struct systemcfg, platform));
78 DEFINE(PLATFORM_LPAR, PLATFORM_LPAR); 77 DEFINE(PLATFORM_LPAR, PLATFORM_LPAR);
79 78
80 /* paca */ 79 /* paca */
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S
index 9e8050ea1225..1c869ea72d28 100644
--- a/arch/ppc64/kernel/head.S
+++ b/arch/ppc64/kernel/head.S
@@ -28,7 +28,6 @@
28#include <asm/processor.h> 28#include <asm/processor.h>
29#include <asm/page.h> 29#include <asm/page.h>
30#include <asm/mmu.h> 30#include <asm/mmu.h>
31#include <asm/systemcfg.h>
32#include <asm/ppc_asm.h> 31#include <asm/ppc_asm.h>
33#include <asm/asm-offsets.h> 32#include <asm/asm-offsets.h>
34#include <asm/bug.h> 33#include <asm/bug.h>
@@ -1701,21 +1700,9 @@ _GLOBAL(__secondary_start)
1701 HMT_MEDIUM /* Set thread priority to MEDIUM */ 1700 HMT_MEDIUM /* Set thread priority to MEDIUM */
1702 1701
1703 ld r2,PACATOC(r13) 1702 ld r2,PACATOC(r13)
1704 li r6,0 1703
1705 stb r6,PACAPROCENABLED(r13) 1704 /* Do early setup for that CPU */
1706 1705 bl .early_setup_secondary
1707#ifndef CONFIG_PPC_ISERIES
1708 /* Initialize the page table pointer register. */
1709 LOADADDR(r6,_SDR1)
1710 ld r6,0(r6) /* get the value of _SDR1 */
1711 mtspr SPRN_SDR1,r6 /* set the htab location */
1712#endif
1713 /* Initialize the first segment table (or SLB) entry */
1714 ld r3,PACASTABVIRT(r13) /* get addr of segment table */
1715BEGIN_FTR_SECTION
1716 bl .stab_initialize
1717END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
1718 bl .slb_initialize
1719 1706
1720 /* Initialize the kernel stack. Just a repeat for iSeries. */ 1707 /* Initialize the kernel stack. Just a repeat for iSeries. */
1721 LOADADDR(r3,current_set) 1708 LOADADDR(r3,current_set)
@@ -1724,37 +1711,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
1724 addi r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD 1711 addi r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
1725 std r1,PACAKSAVE(r13) 1712 std r1,PACAKSAVE(r13)
1726 1713
1727 ld r3,PACASTABREAL(r13) /* get raddr of segment table */
1728 ori r4,r3,1 /* turn on valid bit */
1729
1730#ifdef CONFIG_PPC_ISERIES
1731 li r0,-1 /* hypervisor call */
1732 li r3,1
1733 sldi r3,r3,63 /* 0x8000000000000000 */
1734 ori r3,r3,4 /* 0x8000000000000004 */
1735 sc /* HvCall_setASR */
1736#else
1737 /* set the ASR */
1738 ld r3,systemcfg@got(r2) /* r3 = ptr to systemcfg */
1739 ld r3,0(r3)
1740 lwz r3,PLATFORM(r3) /* r3 = platform flags */
1741 andi. r3,r3,PLATFORM_LPAR /* Test if bit 0 is set (LPAR bit) */
1742 beq 98f /* branch if result is 0 */
1743 mfspr r3,SPRN_PVR
1744 srwi r3,r3,16
1745 cmpwi r3,0x37 /* SStar */
1746 beq 97f
1747 cmpwi r3,0x36 /* IStar */
1748 beq 97f
1749 cmpwi r3,0x34 /* Pulsar */
1750 bne 98f
175197: li r3,H_SET_ASR /* hcall = H_SET_ASR */
1752 HVSC /* Invoking hcall */
1753 b 99f
175498: /* !(rpa hypervisor) || !(star) */
1755 mtasr r4 /* set the stab location */
175699:
1757#endif
1758 li r7,0 1714 li r7,0
1759 mtlr r7 1715 mtlr r7
1760 1716
@@ -1896,40 +1852,6 @@ _STATIC(start_here_multiplatform)
1896 mr r3,r31 1852 mr r3,r31
1897 bl .early_setup 1853 bl .early_setup
1898 1854
1899 /* set the ASR */
1900 ld r3,PACASTABREAL(r13)
1901 ori r4,r3,1 /* turn on valid bit */
1902 ld r3,systemcfg@got(r2) /* r3 = ptr to systemcfg */
1903 ld r3,0(r3)
1904 lwz r3,PLATFORM(r3) /* r3 = platform flags */
1905 andi. r3,r3,PLATFORM_LPAR /* Test if bit 0 is set (LPAR bit) */
1906 beq 98f /* branch if result is 0 */
1907 mfspr r3,SPRN_PVR
1908 srwi r3,r3,16
1909 cmpwi r3,0x37 /* SStar */
1910 beq 97f
1911 cmpwi r3,0x36 /* IStar */
1912 beq 97f
1913 cmpwi r3,0x34 /* Pulsar */
1914 bne 98f
191597: li r3,H_SET_ASR /* hcall = H_SET_ASR */
1916 HVSC /* Invoking hcall */
1917 b 99f
191898: /* !(rpa hypervisor) || !(star) */
1919 mtasr r4 /* set the stab location */
192099:
1921 /* Set SDR1 (hash table pointer) */
1922 ld r3,systemcfg@got(r2) /* r3 = ptr to systemcfg */
1923 ld r3,0(r3)
1924 lwz r3,PLATFORM(r3) /* r3 = platform flags */
1925 /* Test if bit 0 is set (LPAR bit) */
1926 andi. r3,r3,PLATFORM_LPAR
1927 bne 98f /* branch if result is !0 */
1928 LOADADDR(r6,_SDR1) /* Only if NOT LPAR */
1929 sub r6,r6,r26
1930 ld r6,0(r6) /* get the value of _SDR1 */
1931 mtspr SPRN_SDR1,r6 /* set the htab location */
193298:
1933 LOADADDR(r3,.start_here_common) 1855 LOADADDR(r3,.start_here_common)
1934 SET_REG_TO_CONST(r4, MSR_KERNEL) 1856 SET_REG_TO_CONST(r4, MSR_KERNEL)
1935 mtspr SPRN_SRR0,r3 1857 mtspr SPRN_SRR0,r3
diff --git a/arch/ppc64/kernel/idle.c b/arch/ppc64/kernel/idle.c
index 715bc0e71e0f..b879d3057ef8 100644
--- a/arch/ppc64/kernel/idle.c
+++ b/arch/ppc64/kernel/idle.c
@@ -26,7 +26,6 @@
26#include <asm/processor.h> 26#include <asm/processor.h>
27#include <asm/cputable.h> 27#include <asm/cputable.h>
28#include <asm/time.h> 28#include <asm/time.h>
29#include <asm/systemcfg.h>
30#include <asm/machdep.h> 29#include <asm/machdep.h>
31#include <asm/smp.h> 30#include <asm/smp.h>
32 31
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
index 914632ec587d..492bca6137eb 100644
--- a/arch/ppc64/kernel/misc.S
+++ b/arch/ppc64/kernel/misc.S
@@ -78,12 +78,12 @@ _GLOBAL(call_do_softirq)
78 mtlr r0 78 mtlr r0
79 blr 79 blr
80 80
81_GLOBAL(call_handle_IRQ_event) 81_GLOBAL(call___do_IRQ)
82 mflr r0 82 mflr r0
83 std r0,16(r1) 83 std r0,16(r1)
84 stdu r1,THREAD_SIZE-112(r6) 84 stdu r1,THREAD_SIZE-112(r5)
85 mr r1,r6 85 mr r1,r5
86 bl .handle_IRQ_event 86 bl .__do_IRQ
87 ld r1,0(r1) 87 ld r1,0(r1)
88 ld r0,16(r1) 88 ld r0,16(r1)
89 mtlr r0 89 mtlr r0
diff --git a/arch/ppc64/kernel/nvram.c b/arch/ppc64/kernel/nvram.c
index 4fb1a9f5060d..c0fcd29918ce 100644
--- a/arch/ppc64/kernel/nvram.c
+++ b/arch/ppc64/kernel/nvram.c
@@ -31,7 +31,6 @@
31#include <asm/rtas.h> 31#include <asm/rtas.h>
32#include <asm/prom.h> 32#include <asm/prom.h>
33#include <asm/machdep.h> 33#include <asm/machdep.h>
34#include <asm/systemcfg.h>
35 34
36#undef DEBUG_NVRAM 35#undef DEBUG_NVRAM
37 36
@@ -167,7 +166,7 @@ static int dev_nvram_ioctl(struct inode *inode, struct file *file,
167 case IOC_NVRAM_GET_OFFSET: { 166 case IOC_NVRAM_GET_OFFSET: {
168 int part, offset; 167 int part, offset;
169 168
170 if (systemcfg->platform != PLATFORM_POWERMAC) 169 if (_machine != PLATFORM_POWERMAC)
171 return -EINVAL; 170 return -EINVAL;
172 if (copy_from_user(&part, (void __user*)arg, sizeof(part)) != 0) 171 if (copy_from_user(&part, (void __user*)arg, sizeof(part)) != 0)
173 return -EFAULT; 172 return -EFAULT;
@@ -450,7 +449,7 @@ static int nvram_setup_partition(void)
450 * in our nvram, as Apple defined partitions use pretty much 449 * in our nvram, as Apple defined partitions use pretty much
451 * all of the space 450 * all of the space
452 */ 451 */
453 if (systemcfg->platform == PLATFORM_POWERMAC) 452 if (_machine == PLATFORM_POWERMAC)
454 return -ENOSPC; 453 return -ENOSPC;
455 454
456 /* see if we have an OS partition that meets our needs. 455 /* see if we have an OS partition that meets our needs.
diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c
index 30247ff74972..3cef1b8f57f0 100644
--- a/arch/ppc64/kernel/pci.c
+++ b/arch/ppc64/kernel/pci.c
@@ -548,6 +548,11 @@ static int __init pcibios_init(void)
548 if (ppc64_isabridge_dev != NULL) 548 if (ppc64_isabridge_dev != NULL)
549 printk("ISA bridge at %s\n", pci_name(ppc64_isabridge_dev)); 549 printk("ISA bridge at %s\n", pci_name(ppc64_isabridge_dev));
550 550
551#ifdef CONFIG_PPC_MULTIPLATFORM
552 /* map in PCI I/O space */
553 phbs_remap_io();
554#endif
555
551 printk("PCI: Probing PCI hardware done\n"); 556 printk("PCI: Probing PCI hardware done\n");
552 557
553 return 0; 558 return 0;
@@ -1277,12 +1282,9 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
1277 * G5 machines... So when something asks for bus 0 io base 1282 * G5 machines... So when something asks for bus 0 io base
1278 * (bus 0 is HT root), we return the AGP one instead. 1283 * (bus 0 is HT root), we return the AGP one instead.
1279 */ 1284 */
1280#ifdef CONFIG_PPC_PMAC 1285 if (machine_is_compatible("MacRISC4"))
1281 if (systemcfg->platform == PLATFORM_POWERMAC &&
1282 machine_is_compatible("MacRISC4"))
1283 if (in_bus == 0) 1286 if (in_bus == 0)
1284 in_bus = 0xf0; 1287 in_bus = 0xf0;
1285#endif /* CONFIG_PPC_PMAC */
1286 1288
1287 /* That syscall isn't quite compatible with PCI domains, but it's 1289 /* That syscall isn't quite compatible with PCI domains, but it's
1288 * used on pre-domains setup. We return the first match 1290 * used on pre-domains setup. We return the first match
diff --git a/arch/ppc64/kernel/pci_dn.c b/arch/ppc64/kernel/pci_dn.c
index 1a443a7ada4c..12c4c9e9bbc7 100644
--- a/arch/ppc64/kernel/pci_dn.c
+++ b/arch/ppc64/kernel/pci_dn.c
@@ -43,7 +43,7 @@ static void * __devinit update_dn_pci_info(struct device_node *dn, void *data)
43 u32 *regs; 43 u32 *regs;
44 struct pci_dn *pdn; 44 struct pci_dn *pdn;
45 45
46 if (phb->is_dynamic) 46 if (mem_init_done)
47 pdn = kmalloc(sizeof(*pdn), GFP_KERNEL); 47 pdn = kmalloc(sizeof(*pdn), GFP_KERNEL);
48 else 48 else
49 pdn = alloc_bootmem(sizeof(*pdn)); 49 pdn = alloc_bootmem(sizeof(*pdn));
@@ -120,6 +120,14 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
120 return NULL; 120 return NULL;
121} 121}
122 122
123/**
124 * pci_devs_phb_init_dynamic - setup pci devices under this PHB
125 * phb: pci-to-host bridge (top-level bridge connecting to cpu)
126 *
127 * This routine is called both during boot, (before the memory
128 * subsystem is set up, before kmalloc is valid) and during the
129 * dynamic lpar operation of adding a PHB to a running system.
130 */
123void __devinit pci_devs_phb_init_dynamic(struct pci_controller *phb) 131void __devinit pci_devs_phb_init_dynamic(struct pci_controller *phb)
124{ 132{
125 struct device_node * dn = (struct device_node *) phb->arch_data; 133 struct device_node * dn = (struct device_node *) phb->arch_data;
@@ -201,9 +209,14 @@ static struct notifier_block pci_dn_reconfig_nb = {
201 .notifier_call = pci_dn_reconfig_notifier, 209 .notifier_call = pci_dn_reconfig_notifier,
202}; 210};
203 211
204/* 212/**
205 * Actually initialize the phbs. 213 * pci_devs_phb_init - Initialize phbs and pci devs under them.
206 * The buswalk on this phb has not happened yet. 214 *
215 * This routine walks over all phb's (pci-host bridges) on the
216 * system, and sets up assorted pci-related structures
217 * (including pci info in the device node structs) for each
218 * pci device found underneath. This routine runs once,
219 * early in the boot sequence.
207 */ 220 */
208void __init pci_devs_phb_init(void) 221void __init pci_devs_phb_init(void)
209{ 222{
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c
index 3402fbee62c7..fbad2c360784 100644
--- a/arch/ppc64/kernel/prom.c
+++ b/arch/ppc64/kernel/prom.c
@@ -318,7 +318,7 @@ static int __devinit finish_node_interrupts(struct device_node *np,
318 } 318 }
319 319
320 /* We offset irq numbers for the u3 MPIC by 128 in PowerMac */ 320 /* We offset irq numbers for the u3 MPIC by 128 in PowerMac */
321 if (systemcfg->platform == PLATFORM_POWERMAC && ic && ic->parent) { 321 if (_machine == PLATFORM_POWERMAC && ic && ic->parent) {
322 char *name = get_property(ic->parent, "name", NULL); 322 char *name = get_property(ic->parent, "name", NULL);
323 if (name && !strcmp(name, "u3")) 323 if (name && !strcmp(name, "u3"))
324 np->intrs[intrcount].line += 128; 324 np->intrs[intrcount].line += 128;
@@ -1065,7 +1065,7 @@ static int __init early_init_dt_scan_chosen(unsigned long node,
1065 prop = (u32 *)of_get_flat_dt_prop(node, "linux,platform", NULL); 1065 prop = (u32 *)of_get_flat_dt_prop(node, "linux,platform", NULL);
1066 if (prop == NULL) 1066 if (prop == NULL)
1067 return 0; 1067 return 0;
1068 systemcfg->platform = *prop; 1068 _machine = *prop;
1069 1069
1070 /* check if iommu is forced on or off */ 1070 /* check if iommu is forced on or off */
1071 if (of_get_flat_dt_prop(node, "linux,iommu-off", NULL) != NULL) 1071 if (of_get_flat_dt_prop(node, "linux,iommu-off", NULL) != NULL)
@@ -1230,11 +1230,8 @@ void __init early_init_devtree(void *params)
1230 of_scan_flat_dt(early_init_dt_scan_memory, NULL); 1230 of_scan_flat_dt(early_init_dt_scan_memory, NULL);
1231 lmb_enforce_memory_limit(memory_limit); 1231 lmb_enforce_memory_limit(memory_limit);
1232 lmb_analyze(); 1232 lmb_analyze();
1233 systemcfg->physicalMemorySize = lmb_phys_mem_size();
1234 lmb_reserve(0, __pa(klimit)); 1233 lmb_reserve(0, __pa(klimit));
1235 1234
1236 DBG("Phys. mem: %lx\n", systemcfg->physicalMemorySize);
1237
1238 /* Reserve LMB regions used by kernel, initrd, dt, etc... */ 1235 /* Reserve LMB regions used by kernel, initrd, dt, etc... */
1239 early_reserve_mem(); 1236 early_reserve_mem();
1240 1237
@@ -1753,7 +1750,7 @@ static int of_finish_dynamic_node(struct device_node *node,
1753 /* We don't support that function on PowerMac, at least 1750 /* We don't support that function on PowerMac, at least
1754 * not yet 1751 * not yet
1755 */ 1752 */
1756 if (systemcfg->platform == PLATFORM_POWERMAC) 1753 if (_machine == PLATFORM_POWERMAC)
1757 return -ENODEV; 1754 return -ENODEV;
1758 1755
1759 /* fix up new node's linux_phandle field */ 1756 /* fix up new node's linux_phandle field */
diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c
index e4c880dab997..6375f40b23db 100644
--- a/arch/ppc64/kernel/prom_init.c
+++ b/arch/ppc64/kernel/prom_init.c
@@ -1934,7 +1934,8 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, unsigned long
1934 /* 1934 /*
1935 * On pSeries, inform the firmware about our capabilities 1935 * On pSeries, inform the firmware about our capabilities
1936 */ 1936 */
1937 if (RELOC(of_platform) & PLATFORM_PSERIES) 1937 if (RELOC(of_platform) == PLATFORM_PSERIES ||
1938 RELOC(of_platform) == PLATFORM_PSERIES_LPAR)
1938 prom_send_capabilities(); 1939 prom_send_capabilities();
1939 1940
1940 /* 1941 /*
diff --git a/arch/ppc64/kernel/vdso.c b/arch/ppc64/kernel/vdso.c
index 4aacf521e3e4..1bbacac44988 100644
--- a/arch/ppc64/kernel/vdso.c
+++ b/arch/ppc64/kernel/vdso.c
@@ -34,6 +34,7 @@
34#include <asm/machdep.h> 34#include <asm/machdep.h>
35#include <asm/cputable.h> 35#include <asm/cputable.h>
36#include <asm/sections.h> 36#include <asm/sections.h>
37#include <asm/systemcfg.h>
37#include <asm/vdso.h> 38#include <asm/vdso.h>
38 39
39#undef DEBUG 40#undef DEBUG
@@ -179,7 +180,7 @@ static struct page * vdso_vma_nopage(struct vm_area_struct * vma,
179 * Last page is systemcfg. 180 * Last page is systemcfg.
180 */ 181 */
181 if ((vma->vm_end - address) <= PAGE_SIZE) 182 if ((vma->vm_end - address) <= PAGE_SIZE)
182 pg = virt_to_page(systemcfg); 183 pg = virt_to_page(_systemcfg);
183 else 184 else
184 pg = virt_to_page(vbase + offset); 185 pg = virt_to_page(vbase + offset);
185 186
@@ -604,7 +605,7 @@ void __init vdso_init(void)
604 get_page(pg); 605 get_page(pg);
605 } 606 }
606 607
607 get_page(virt_to_page(systemcfg)); 608 get_page(virt_to_page(_systemcfg));
608} 609}
609 610
610int in_gate_area_no_task(unsigned long addr) 611int in_gate_area_no_task(unsigned long addr)
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 06:54:18 -0500