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authorKumar Gala <galak@freescale.com>2005-06-25 17:54:37 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-25 19:24:26 -0400
commit33d9e9b56d5ccd7776fdfe3ecce4a2793dee6fd3 (patch)
treee2ecb071823cc9ffe2755ed117bfabe04a35e1fc /arch/ppc
parent62aa751d16399637325852bc0a1fcf13c2476dd7 (diff)
[PATCH] ppc32: Add support for Freescale e200 (Book-E) core
The e200 core is a Book-E core (similar to e500) that has a unified L1 cache and is not cache coherent on the bus. The e200 core also adds a separate exception level for debug exceptions. Part of this patch helps to cleanup a few cases that are true for all Freescale Book-E parts, not just e500. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc')
-rw-r--r--arch/ppc/Kconfig17
-rw-r--r--arch/ppc/Makefile3
-rw-r--r--arch/ppc/kernel/Makefile2
-rw-r--r--arch/ppc/kernel/cputable.c25
-rw-r--r--arch/ppc/kernel/entry.S9
-rw-r--r--arch/ppc/kernel/head_booke.h64
-rw-r--r--arch/ppc/kernel/head_fsl_booke.S51
-rw-r--r--arch/ppc/kernel/misc.S8
-rw-r--r--arch/ppc/kernel/perfmon.c2
-rw-r--r--arch/ppc/kernel/traps.c24
-rw-r--r--arch/ppc/mm/fsl_booke_mmu.c2
11 files changed, 192 insertions, 15 deletions
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 848f43970a4b..979590a9baf9 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -88,6 +88,9 @@ config 8xx
88 depends on BROKEN 88 depends on BROKEN
89 bool "8xx" 89 bool "8xx"
90 90
91config E200
92 bool "e200"
93
91config E500 94config E500
92 bool "e500" 95 bool "e500"
93 96
@@ -98,12 +101,12 @@ config PPC_FPU
98 101
99config BOOKE 102config BOOKE
100 bool 103 bool
101 depends on E500 104 depends on E200 || E500
102 default y 105 default y
103 106
104config FSL_BOOKE 107config FSL_BOOKE
105 bool 108 bool
106 depends on E500 109 depends on E200 || E500
107 default y 110 default y
108 111
109config PTE_64BIT 112config PTE_64BIT
@@ -141,16 +144,16 @@ config ALTIVEC
141 144
142config SPE 145config SPE
143 bool "SPE Support" 146 bool "SPE Support"
144 depends on E500 147 depends on E200 || E500
145 ---help--- 148 ---help---
146 This option enables kernel support for the Signal Processing 149 This option enables kernel support for the Signal Processing
147 Extensions (SPE) to the PowerPC processor. The kernel currently 150 Extensions (SPE) to the PowerPC processor. The kernel currently
148 supports saving and restoring SPE registers, and turning on the 151 supports saving and restoring SPE registers, and turning on the
149 'spe enable' bit so user processes can execute SPE instructions. 152 'spe enable' bit so user processes can execute SPE instructions.
150 153
151 This option is only usefully if you have a processor that supports 154 This option is only useful if you have a processor that supports
152 SPE (e500, otherwise known as 85xx series), but does not have any 155 SPE (e500, otherwise known as 85xx series), but does not have any
153 affect on a non-spe cpu (it does, however add code to the kernel). 156 effect on a non-spe cpu (it does, however add code to the kernel).
154 157
155 If in doubt, say Y here. 158 If in doubt, say Y here.
156 159
@@ -200,7 +203,7 @@ config TAU_AVERAGE
200 203
201config MATH_EMULATION 204config MATH_EMULATION
202 bool "Math emulation" 205 bool "Math emulation"
203 depends on 4xx || 8xx || E500 206 depends on 4xx || 8xx || E200 || E500
204 ---help--- 207 ---help---
205 Some PowerPC chips designed for embedded applications do not have 208 Some PowerPC chips designed for embedded applications do not have
206 a floating-point unit and therefore do not implement the 209 a floating-point unit and therefore do not implement the
@@ -254,7 +257,7 @@ config PPC_STD_MMU
254 257
255config NOT_COHERENT_CACHE 258config NOT_COHERENT_CACHE
256 bool 259 bool
257 depends on 4xx || 8xx 260 depends on 4xx || 8xx || E200
258 default y 261 default y
259 262
260endmenu 263endmenu
diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index 0432a25b4735..f9b0d778dd82 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -29,7 +29,7 @@ CPP = $(CC) -E $(CFLAGS)
29 29
30CHECKFLAGS += -D__powerpc__ 30CHECKFLAGS += -D__powerpc__
31 31
32ifndef CONFIG_E500 32ifndef CONFIG_FSL_BOOKE
33CFLAGS += -mstring 33CFLAGS += -mstring
34endif 34endif
35 35
@@ -38,6 +38,7 @@ cpu-as-$(CONFIG_4xx) += -Wa,-m405
38cpu-as-$(CONFIG_6xx) += -Wa,-maltivec 38cpu-as-$(CONFIG_6xx) += -Wa,-maltivec
39cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec 39cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec
40cpu-as-$(CONFIG_E500) += -Wa,-me500 40cpu-as-$(CONFIG_E500) += -Wa,-me500
41cpu-as-$(CONFIG_E200) += -Wa,-me200
41 42
42AFLAGS += $(cpu-as-y) 43AFLAGS += $(cpu-as-y)
43CFLAGS += $(cpu-as-y) 44CFLAGS += $(cpu-as-y)
diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index b284451802c9..8276c0b551d2 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -26,7 +26,9 @@ obj-$(CONFIG_KGDB) += ppc-stub.o
26obj-$(CONFIG_SMP) += smp.o smp-tbsync.o 26obj-$(CONFIG_SMP) += smp.o smp-tbsync.o
27obj-$(CONFIG_TAU) += temp.o 27obj-$(CONFIG_TAU) += temp.o
28obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o 28obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o
29ifndef CONFIG_E200
29obj-$(CONFIG_FSL_BOOKE) += perfmon_fsl_booke.o 30obj-$(CONFIG_FSL_BOOKE) += perfmon_fsl_booke.o
31endif
30 32
31ifndef CONFIG_MATH_EMULATION 33ifndef CONFIG_MATH_EMULATION
32obj-$(CONFIG_8xx) += softemu8xx.o 34obj-$(CONFIG_8xx) += softemu8xx.o
diff --git a/arch/ppc/kernel/cputable.c b/arch/ppc/kernel/cputable.c
index 01c226008dbf..50936cda0af9 100644
--- a/arch/ppc/kernel/cputable.c
+++ b/arch/ppc/kernel/cputable.c
@@ -903,7 +903,30 @@ struct cpu_spec cpu_specs[] = {
903 .dcache_bsize = 32, 903 .dcache_bsize = 32,
904 }, 904 },
905#endif /* CONFIG_44x */ 905#endif /* CONFIG_44x */
906#ifdef CONFIG_E500 906#ifdef CONFIG_FSL_BOOKE
907 { /* e200z5 */
908 .pvr_mask = 0xfff00000,
909 .pvr_value = 0x81000000,
910 .cpu_name = "e200z5",
911 /* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
912 .cpu_features = CPU_FTR_USE_TB,
913 .cpu_user_features = PPC_FEATURE_32 |
914 PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_EFP_SINGLE |
915 PPC_FEATURE_UNIFIED_CACHE,
916 .dcache_bsize = 32,
917 },
918 { /* e200z6 */
919 .pvr_mask = 0xfff00000,
920 .pvr_value = 0x81100000,
921 .cpu_name = "e200z6",
922 /* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
923 .cpu_features = CPU_FTR_USE_TB,
924 .cpu_user_features = PPC_FEATURE_32 |
925 PPC_FEATURE_HAS_MMU | PPC_FEATURE_SPE_COMP |
926 PPC_FEATURE_HAS_EFP_SINGLE |
927 PPC_FEATURE_UNIFIED_CACHE,
928 .dcache_bsize = 32,
929 },
907 { /* e500 */ 930 { /* e500 */
908 .pvr_mask = 0xffff0000, 931 .pvr_mask = 0xffff0000,
909 .pvr_value = 0x80200000, 932 .pvr_value = 0x80200000,
diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S
index 8377b6ca26da..d4df68629cc6 100644
--- a/arch/ppc/kernel/entry.S
+++ b/arch/ppc/kernel/entry.S
@@ -60,6 +60,11 @@ mcheck_transfer_to_handler:
60 TRANSFER_TO_HANDLER_EXC_LEVEL(MCHECK) 60 TRANSFER_TO_HANDLER_EXC_LEVEL(MCHECK)
61 b transfer_to_handler_full 61 b transfer_to_handler_full
62 62
63 .globl debug_transfer_to_handler
64debug_transfer_to_handler:
65 TRANSFER_TO_HANDLER_EXC_LEVEL(DEBUG)
66 b transfer_to_handler_full
67
63 .globl crit_transfer_to_handler 68 .globl crit_transfer_to_handler
64crit_transfer_to_handler: 69crit_transfer_to_handler:
65 TRANSFER_TO_HANDLER_EXC_LEVEL(CRIT) 70 TRANSFER_TO_HANDLER_EXC_LEVEL(CRIT)
@@ -835,6 +840,10 @@ ret_from_crit_exc:
835 RET_FROM_EXC_LEVEL(SPRN_CSRR0, SPRN_CSRR1, RFCI) 840 RET_FROM_EXC_LEVEL(SPRN_CSRR0, SPRN_CSRR1, RFCI)
836 841
837#ifdef CONFIG_BOOKE 842#ifdef CONFIG_BOOKE
843 .globl ret_from_debug_exc
844ret_from_debug_exc:
845 RET_FROM_EXC_LEVEL(SPRN_DSRR0, SPRN_DSRR1, RFDI)
846
838 .globl ret_from_mcheck_exc 847 .globl ret_from_mcheck_exc
839ret_from_mcheck_exc: 848ret_from_mcheck_exc:
840 RET_FROM_EXC_LEVEL(SPRN_MCSRR0, SPRN_MCSRR1, RFMCI) 849 RET_FROM_EXC_LEVEL(SPRN_MCSRR0, SPRN_MCSRR1, RFMCI)
diff --git a/arch/ppc/kernel/head_booke.h b/arch/ppc/kernel/head_booke.h
index 9c50f9d2657c..9342acf12e72 100644
--- a/arch/ppc/kernel/head_booke.h
+++ b/arch/ppc/kernel/head_booke.h
@@ -49,6 +49,7 @@
49 * 49 *
50 * On 40x critical is the only additional level 50 * On 40x critical is the only additional level
51 * On 44x/e500 we have critical and machine check 51 * On 44x/e500 we have critical and machine check
52 * On e200 we have critical and debug (machine check occurs via critical)
52 * 53 *
53 * Additionally we reserve a SPRG for each priority level so we can free up a 54 * Additionally we reserve a SPRG for each priority level so we can free up a
54 * GPR to use as the base for indirect access to the exception stacks. This 55 * GPR to use as the base for indirect access to the exception stacks. This
@@ -60,12 +61,16 @@
60 61
61/* CRIT_SPRG only used in critical exception handling */ 62/* CRIT_SPRG only used in critical exception handling */
62#define CRIT_SPRG SPRN_SPRG2 63#define CRIT_SPRG SPRN_SPRG2
63/* MCHECK_SPRG only used in critical exception handling */ 64/* MCHECK_SPRG only used in machine check exception handling */
64#define MCHECK_SPRG SPRN_SPRG6W 65#define MCHECK_SPRG SPRN_SPRG6W
65 66
66#define MCHECK_STACK_TOP (exception_stack_top - 4096) 67#define MCHECK_STACK_TOP (exception_stack_top - 4096)
67#define CRIT_STACK_TOP (exception_stack_top) 68#define CRIT_STACK_TOP (exception_stack_top)
68 69
70/* only on e200 for now */
71#define DEBUG_STACK_TOP (exception_stack_top - 4096)
72#define DEBUG_SPRG SPRN_SPRG6W
73
69#ifdef CONFIG_SMP 74#ifdef CONFIG_SMP
70#define BOOKE_LOAD_EXC_LEVEL_STACK(level) \ 75#define BOOKE_LOAD_EXC_LEVEL_STACK(level) \
71 mfspr r8,SPRN_PIR; \ 76 mfspr r8,SPRN_PIR; \
@@ -124,6 +129,8 @@
124 129
125#define CRITICAL_EXCEPTION_PROLOG \ 130#define CRITICAL_EXCEPTION_PROLOG \
126 EXC_LEVEL_EXCEPTION_PROLOG(CRIT, SPRN_CSRR0, SPRN_CSRR1) 131 EXC_LEVEL_EXCEPTION_PROLOG(CRIT, SPRN_CSRR0, SPRN_CSRR1)
132#define DEBUG_EXCEPTION_PROLOG \
133 EXC_LEVEL_EXCEPTION_PROLOG(DEBUG, SPRN_DSRR0, SPRN_DSRR1)
127#define MCHECK_EXCEPTION_PROLOG \ 134#define MCHECK_EXCEPTION_PROLOG \
128 EXC_LEVEL_EXCEPTION_PROLOG(MCHECK, SPRN_MCSRR0, SPRN_MCSRR1) 135 EXC_LEVEL_EXCEPTION_PROLOG(MCHECK, SPRN_MCSRR0, SPRN_MCSRR1)
129 136
@@ -205,6 +212,60 @@ label:
205 * save (and later restore) the MSR via SPRN_CSRR1, which will still have 212 * save (and later restore) the MSR via SPRN_CSRR1, which will still have
206 * the MSR_DE bit set. 213 * the MSR_DE bit set.
207 */ 214 */
215#ifdef CONFIG_E200
216#define DEBUG_EXCEPTION \
217 START_EXCEPTION(Debug); \
218 DEBUG_EXCEPTION_PROLOG; \
219 \
220 /* \
221 * If there is a single step or branch-taken exception in an \
222 * exception entry sequence, it was probably meant to apply to \
223 * the code where the exception occurred (since exception entry \
224 * doesn't turn off DE automatically). We simulate the effect \
225 * of turning off DE on entry to an exception handler by turning \
226 * off DE in the CSRR1 value and clearing the debug status. \
227 */ \
228 mfspr r10,SPRN_DBSR; /* check single-step/branch taken */ \
229 andis. r10,r10,DBSR_IC@h; \
230 beq+ 2f; \
231 \
232 lis r10,KERNELBASE@h; /* check if exception in vectors */ \
233 ori r10,r10,KERNELBASE@l; \
234 cmplw r12,r10; \
235 blt+ 2f; /* addr below exception vectors */ \
236 \
237 lis r10,Debug@h; \
238 ori r10,r10,Debug@l; \
239 cmplw r12,r10; \
240 bgt+ 2f; /* addr above exception vectors */ \
241 \
242 /* here it looks like we got an inappropriate debug exception. */ \
2431: rlwinm r9,r9,0,~MSR_DE; /* clear DE in the CDRR1 value */ \
244 lis r10,DBSR_IC@h; /* clear the IC event */ \
245 mtspr SPRN_DBSR,r10; \
246 /* restore state and get out */ \
247 lwz r10,_CCR(r11); \
248 lwz r0,GPR0(r11); \
249 lwz r1,GPR1(r11); \
250 mtcrf 0x80,r10; \
251 mtspr SPRN_DSRR0,r12; \
252 mtspr SPRN_DSRR1,r9; \
253 lwz r9,GPR9(r11); \
254 lwz r12,GPR12(r11); \
255 mtspr DEBUG_SPRG,r8; \
256 BOOKE_LOAD_EXC_LEVEL_STACK(DEBUG); /* r8 points to the debug stack */ \
257 lwz r10,GPR10-INT_FRAME_SIZE(r8); \
258 lwz r11,GPR11-INT_FRAME_SIZE(r8); \
259 mfspr r8,DEBUG_SPRG; \
260 \
261 RFDI; \
262 b .; \
263 \
264 /* continue normal handling for a critical exception... */ \
2652: mfspr r4,SPRN_DBSR; \
266 addi r3,r1,STACK_FRAME_OVERHEAD; \
267 EXC_XFER_TEMPLATE(DebugException, 0x2002, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), NOCOPY, debug_transfer_to_handler, ret_from_debug_exc)
268#else
208#define DEBUG_EXCEPTION \ 269#define DEBUG_EXCEPTION \
209 START_EXCEPTION(Debug); \ 270 START_EXCEPTION(Debug); \
210 CRITICAL_EXCEPTION_PROLOG; \ 271 CRITICAL_EXCEPTION_PROLOG; \
@@ -257,6 +318,7 @@ label:
2572: mfspr r4,SPRN_DBSR; \ 3182: mfspr r4,SPRN_DBSR; \
258 addi r3,r1,STACK_FRAME_OVERHEAD; \ 319 addi r3,r1,STACK_FRAME_OVERHEAD; \
259 EXC_XFER_TEMPLATE(DebugException, 0x2002, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), NOCOPY, crit_transfer_to_handler, ret_from_crit_exc) 320 EXC_XFER_TEMPLATE(DebugException, 0x2002, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), NOCOPY, crit_transfer_to_handler, ret_from_crit_exc)
321#endif
260 322
261#define INSTRUCTION_STORAGE_EXCEPTION \ 323#define INSTRUCTION_STORAGE_EXCEPTION \
262 START_EXCEPTION(InstructionStorage) \ 324 START_EXCEPTION(InstructionStorage) \
diff --git a/arch/ppc/kernel/head_fsl_booke.S b/arch/ppc/kernel/head_fsl_booke.S
index ce36e88ba627..eb804b7a3cb2 100644
--- a/arch/ppc/kernel/head_fsl_booke.S
+++ b/arch/ppc/kernel/head_fsl_booke.S
@@ -102,6 +102,7 @@ invstr: mflr r6 /* Make it accessible */
102 or r7,r7,r4 102 or r7,r7,r4
103 mtspr SPRN_MAS6,r7 103 mtspr SPRN_MAS6,r7
104 tlbsx 0,r6 /* search MSR[IS], SPID=PID0 */ 104 tlbsx 0,r6 /* search MSR[IS], SPID=PID0 */
105#ifndef CONFIG_E200
105 mfspr r7,SPRN_MAS1 106 mfspr r7,SPRN_MAS1
106 andis. r7,r7,MAS1_VALID@h 107 andis. r7,r7,MAS1_VALID@h
107 bne match_TLB 108 bne match_TLB
@@ -118,6 +119,7 @@ invstr: mflr r6 /* Make it accessible */
118 or r7,r7,r4 119 or r7,r7,r4
119 mtspr SPRN_MAS6,r7 120 mtspr SPRN_MAS6,r7
120 tlbsx 0,r6 /* Fall through, we had to match */ 121 tlbsx 0,r6 /* Fall through, we had to match */
122#endif
121match_TLB: 123match_TLB:
122 mfspr r7,SPRN_MAS0 124 mfspr r7,SPRN_MAS0
123 rlwinm r3,r7,16,20,31 /* Extract MAS0(Entry) */ 125 rlwinm r3,r7,16,20,31 /* Extract MAS0(Entry) */
@@ -196,8 +198,10 @@ skpinv: addi r6,r6,1 /* Increment */
196/* 4. Clear out PIDs & Search info */ 198/* 4. Clear out PIDs & Search info */
197 li r6,0 199 li r6,0
198 mtspr SPRN_PID0,r6 200 mtspr SPRN_PID0,r6
201#ifndef CONFIG_E200
199 mtspr SPRN_PID1,r6 202 mtspr SPRN_PID1,r6
200 mtspr SPRN_PID2,r6 203 mtspr SPRN_PID2,r6
204#endif
201 mtspr SPRN_MAS6,r6 205 mtspr SPRN_MAS6,r6
202 206
203/* 5. Invalidate mapping we started in */ 207/* 5. Invalidate mapping we started in */
@@ -277,7 +281,9 @@ skpinv: addi r6,r6,1 /* Increment */
277 SET_IVOR(32, SPEUnavailable); 281 SET_IVOR(32, SPEUnavailable);
278 SET_IVOR(33, SPEFloatingPointData); 282 SET_IVOR(33, SPEFloatingPointData);
279 SET_IVOR(34, SPEFloatingPointRound); 283 SET_IVOR(34, SPEFloatingPointRound);
284#ifndef CONFIG_E200
280 SET_IVOR(35, PerformanceMonitor); 285 SET_IVOR(35, PerformanceMonitor);
286#endif
281 287
282 /* Establish the interrupt vector base */ 288 /* Establish the interrupt vector base */
283 lis r4,interrupt_base@h /* IVPR only uses the high 16-bits */ 289 lis r4,interrupt_base@h /* IVPR only uses the high 16-bits */
@@ -285,6 +291,9 @@ skpinv: addi r6,r6,1 /* Increment */
285 291
286 /* Setup the defaults for TLB entries */ 292 /* Setup the defaults for TLB entries */
287 li r2,(MAS4_TSIZED(BOOKE_PAGESZ_4K))@l 293 li r2,(MAS4_TSIZED(BOOKE_PAGESZ_4K))@l
294#ifdef CONFIG_E200
295 oris r2,r2,MAS4_TLBSELD(1)@h
296#endif
288 mtspr SPRN_MAS4, r2 297 mtspr SPRN_MAS4, r2
289 298
290#if 0 299#if 0
@@ -293,6 +302,12 @@ skpinv: addi r6,r6,1 /* Increment */
293 oris r2,r2,HID0_DOZE@h 302 oris r2,r2,HID0_DOZE@h
294 mtspr SPRN_HID0, r2 303 mtspr SPRN_HID0, r2
295#endif 304#endif
305#ifdef CONFIG_E200
306 /* enable dedicated debug exception handling resources (Debug APU) */
307 mfspr r2,SPRN_HID0
308 ori r2,r2,HID0_DAPUEN@l
309 mtspr SPRN_HID0,r2
310#endif
296 311
297#if !defined(CONFIG_BDI_SWITCH) 312#if !defined(CONFIG_BDI_SWITCH)
298 /* 313 /*
@@ -414,7 +429,12 @@ interrupt_base:
414 CRITICAL_EXCEPTION(0x0100, CriticalInput, UnknownException) 429 CRITICAL_EXCEPTION(0x0100, CriticalInput, UnknownException)
415 430
416 /* Machine Check Interrupt */ 431 /* Machine Check Interrupt */
432#ifdef CONFIG_E200
433 /* no RFMCI, MCSRRs on E200 */
434 CRITICAL_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
435#else
417 MCHECK_EXCEPTION(0x0200, MachineCheck, MachineCheckException) 436 MCHECK_EXCEPTION(0x0200, MachineCheck, MachineCheckException)
437#endif
418 438
419 /* Data Storage Interrupt */ 439 /* Data Storage Interrupt */
420 START_EXCEPTION(DataStorage) 440 START_EXCEPTION(DataStorage)
@@ -520,8 +540,13 @@ interrupt_base:
520#ifdef CONFIG_PPC_FPU 540#ifdef CONFIG_PPC_FPU
521 FP_UNAVAILABLE_EXCEPTION 541 FP_UNAVAILABLE_EXCEPTION
522#else 542#else
543#ifdef CONFIG_E200
544 /* E200 treats 'normal' floating point instructions as FP Unavail exception */
545 EXCEPTION(0x0800, FloatingPointUnavailable, ProgramCheckException, EXC_XFER_EE)
546#else
523 EXCEPTION(0x0800, FloatingPointUnavailable, UnknownException, EXC_XFER_EE) 547 EXCEPTION(0x0800, FloatingPointUnavailable, UnknownException, EXC_XFER_EE)
524#endif 548#endif
549#endif
525 550
526 /* System Call Interrupt */ 551 /* System Call Interrupt */
527 START_EXCEPTION(SystemCall) 552 START_EXCEPTION(SystemCall)
@@ -691,6 +716,7 @@ interrupt_base:
691/* 716/*
692 * Local functions 717 * Local functions
693 */ 718 */
719
694 /* 720 /*
695 * Data TLB exceptions will bail out to this point 721 * Data TLB exceptions will bail out to this point
696 * if they can't resolve the lightweight TLB fault. 722 * if they can't resolve the lightweight TLB fault.
@@ -761,6 +787,31 @@ END_FTR_SECTION_IFSET(CPU_FTR_BIG_PHYS)
7612: rlwimi r11, r12, 0, 20, 31 /* Extract RPN from PTE and merge with perms */ 7872: rlwimi r11, r12, 0, 20, 31 /* Extract RPN from PTE and merge with perms */
762 mtspr SPRN_MAS3, r11 788 mtspr SPRN_MAS3, r11
763#endif 789#endif
790#ifdef CONFIG_E200
791 /* Round robin TLB1 entries assignment */
792 mfspr r12, SPRN_MAS0
793
794 /* Extract TLB1CFG(NENTRY) */
795 mfspr r11, SPRN_TLB1CFG
796 andi. r11, r11, 0xfff
797
798 /* Extract MAS0(NV) */
799 andi. r13, r12, 0xfff
800 addi r13, r13, 1
801 cmpw 0, r13, r11
802 addi r12, r12, 1
803
804 /* check if we need to wrap */
805 blt 7f
806
807 /* wrap back to first free tlbcam entry */
808 lis r13, tlbcam_index@ha
809 lwz r13, tlbcam_index@l(r13)
810 rlwimi r12, r13, 0, 20, 31
8117:
812 mtspr SPRN_MAS0,r12
813#endif /* CONFIG_E200 */
814
764 tlbwe 815 tlbwe
765 816
766 /* Done...restore registers and get out of here. */ 817 /* Done...restore registers and get out of here. */
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 7329ef177a18..a3132f8e799c 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -593,6 +593,14 @@ _GLOBAL(flush_instruction_cache)
593 iccci 0,r3 593 iccci 0,r3
594#endif 594#endif
595#elif CONFIG_FSL_BOOKE 595#elif CONFIG_FSL_BOOKE
596BEGIN_FTR_SECTION
597 mfspr r3,SPRN_L1CSR0
598 ori r3,r3,L1CSR0_CFI|L1CSR0_CLFC
599 /* msync; isync recommended here */
600 mtspr SPRN_L1CSR0,r3
601 isync
602 blr
603END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
596 mfspr r3,SPRN_L1CSR1 604 mfspr r3,SPRN_L1CSR1
597 ori r3,r3,L1CSR1_ICFI|L1CSR1_ICLFR 605 ori r3,r3,L1CSR1_ICFI|L1CSR1_ICLFR
598 mtspr SPRN_L1CSR1,r3 606 mtspr SPRN_L1CSR1,r3
diff --git a/arch/ppc/kernel/perfmon.c b/arch/ppc/kernel/perfmon.c
index 918f6b252e45..fa1dad96b830 100644
--- a/arch/ppc/kernel/perfmon.c
+++ b/arch/ppc/kernel/perfmon.c
@@ -36,7 +36,7 @@
36/* A lock to regulate grabbing the interrupt */ 36/* A lock to regulate grabbing the interrupt */
37DEFINE_SPINLOCK(perfmon_lock); 37DEFINE_SPINLOCK(perfmon_lock);
38 38
39#ifdef CONFIG_FSL_BOOKE 39#if defined (CONFIG_FSL_BOOKE) && !defined (CONFIG_E200)
40static void dummy_perf(struct pt_regs *regs) 40static void dummy_perf(struct pt_regs *regs)
41{ 41{
42 unsigned int pmgc0 = mfpmr(PMRN_PMGC0); 42 unsigned int pmgc0 = mfpmr(PMRN_PMGC0);
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index 2ca8ecfeefd9..9e6ae5696650 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -173,13 +173,13 @@ static inline int check_io_access(struct pt_regs *regs)
173/* On 4xx, the reason for the machine check or program exception 173/* On 4xx, the reason for the machine check or program exception
174 is in the ESR. */ 174 is in the ESR. */
175#define get_reason(regs) ((regs)->dsisr) 175#define get_reason(regs) ((regs)->dsisr)
176#ifndef CONFIG_E500 176#ifndef CONFIG_FSL_BOOKE
177#define get_mc_reason(regs) ((regs)->dsisr) 177#define get_mc_reason(regs) ((regs)->dsisr)
178#else 178#else
179#define get_mc_reason(regs) (mfspr(SPRN_MCSR)) 179#define get_mc_reason(regs) (mfspr(SPRN_MCSR))
180#endif 180#endif
181#define REASON_FP ESR_FP 181#define REASON_FP ESR_FP
182#define REASON_ILLEGAL ESR_PIL 182#define REASON_ILLEGAL (ESR_PIL | ESR_PUO)
183#define REASON_PRIVILEGED ESR_PPR 183#define REASON_PRIVILEGED ESR_PPR
184#define REASON_TRAP ESR_PTR 184#define REASON_TRAP ESR_PTR
185 185
@@ -302,7 +302,25 @@ void MachineCheckException(struct pt_regs *regs)
302 printk("Bus - Instruction Parity Error\n"); 302 printk("Bus - Instruction Parity Error\n");
303 if (reason & MCSR_BUS_RPERR) 303 if (reason & MCSR_BUS_RPERR)
304 printk("Bus - Read Parity Error\n"); 304 printk("Bus - Read Parity Error\n");
305#else /* !CONFIG_4xx && !CONFIG_E500 */ 305#elif defined (CONFIG_E200)
306 printk("Machine check in kernel mode.\n");
307 printk("Caused by (from MCSR=%lx): ", reason);
308
309 if (reason & MCSR_MCP)
310 printk("Machine Check Signal\n");
311 if (reason & MCSR_CP_PERR)
312 printk("Cache Push Parity Error\n");
313 if (reason & MCSR_CPERR)
314 printk("Cache Parity Error\n");
315 if (reason & MCSR_EXCP_ERR)
316 printk("ISI, ITLB, or Bus Error on first instruction fetch for an exception handler\n");
317 if (reason & MCSR_BUS_IRERR)
318 printk("Bus - Read Bus Error on instruction fetch\n");
319 if (reason & MCSR_BUS_DRERR)
320 printk("Bus - Read Bus Error on data load\n");
321 if (reason & MCSR_BUS_WRERR)
322 printk("Bus - Write Bus Error on buffered store or cache line push\n");
323#else /* !CONFIG_4xx && !CONFIG_E500 && !CONFIG_E200 */
306 printk("Machine check in kernel mode.\n"); 324 printk("Machine check in kernel mode.\n");
307 printk("Caused by (from SRR1=%lx): ", reason); 325 printk("Caused by (from SRR1=%lx): ", reason);
308 switch (reason & 0x601F0000) { 326 switch (reason & 0x601F0000) {
diff --git a/arch/ppc/mm/fsl_booke_mmu.c b/arch/ppc/mm/fsl_booke_mmu.c
index e07990efa046..9fa884de5c7c 100644
--- a/arch/ppc/mm/fsl_booke_mmu.c
+++ b/arch/ppc/mm/fsl_booke_mmu.c
@@ -126,7 +126,7 @@ void settlbcam(int index, unsigned long virt, phys_addr_t phys,
126 flags |= _PAGE_COHERENT; 126 flags |= _PAGE_COHERENT;
127#endif 127#endif
128 128
129 TLBCAM[index].MAS0 = MAS0_TLBSEL(1) | MAS0_ESEL(index); 129 TLBCAM[index].MAS0 = MAS0_TLBSEL(1) | MAS0_ESEL(index) | MAS0_NV(index+1);
130 TLBCAM[index].MAS1 = MAS1_VALID | MAS1_IPROT | MAS1_TSIZE(tsize) | MAS1_TID(pid); 130 TLBCAM[index].MAS1 = MAS1_VALID | MAS1_IPROT | MAS1_TSIZE(tsize) | MAS1_TID(pid);
131 TLBCAM[index].MAS2 = virt & PAGE_MASK; 131 TLBCAM[index].MAS2 = virt & PAGE_MASK;
132 132
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-11 13:39:57 -0500