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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-02 15:45:33 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-02 15:45:33 -0500
commite770a0f1154193ca6b6e720a86aeaa2edc9261c6 (patch)
tree04f5f5420e4116a18be8f94c117aadb870eaa46d /arch/mips
parent7ab02af428c2d312c0cf8fb0b01cc1eb21131a3d (diff)
parent91dfc423cc8cfd399fb308a837102a7ab7fa067e (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: 64-bit: Detect virtual memory size MIPS: AR7: Fix USB slave mem range typo MIPS: Alchemy: Fix dbdma ring destruction memory debugcheck.
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/alchemy/common/dbdma.c7
-rw-r--r--arch/mips/ar7/platform.c2
-rw-r--r--arch/mips/include/asm/cpu-features.h7
-rw-r--r--arch/mips/include/asm/cpu-info.h3
-rw-r--r--arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h1
-rw-r--r--arch/mips/include/asm/pgtable-64.h4
-rw-r--r--arch/mips/kernel/cpu-probe.c11
7 files changed, 31 insertions, 4 deletions
diff --git a/arch/mips/alchemy/common/dbdma.c b/arch/mips/alchemy/common/dbdma.c
index 5c68569344c1..f9201ca2295b 100644
--- a/arch/mips/alchemy/common/dbdma.c
+++ b/arch/mips/alchemy/common/dbdma.c
@@ -412,8 +412,11 @@ u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
412 if (desc_base == 0) 412 if (desc_base == 0)
413 return 0; 413 return 0;
414 414
415 ctp->cdb_membase = desc_base;
415 desc_base = ALIGN_ADDR(desc_base, sizeof(au1x_ddma_desc_t)); 416 desc_base = ALIGN_ADDR(desc_base, sizeof(au1x_ddma_desc_t));
416 } 417 } else
418 ctp->cdb_membase = desc_base;
419
417 dp = (au1x_ddma_desc_t *)desc_base; 420 dp = (au1x_ddma_desc_t *)desc_base;
418 421
419 /* Keep track of the base descriptor. */ 422 /* Keep track of the base descriptor. */
@@ -831,7 +834,7 @@ void au1xxx_dbdma_chan_free(u32 chanid)
831 834
832 au1xxx_dbdma_stop(chanid); 835 au1xxx_dbdma_stop(chanid);
833 836
834 kfree((void *)ctp->chan_desc_base); 837 kfree((void *)ctp->cdb_membase);
835 838
836 stp->dev_flags &= ~DEV_FLAGS_INUSE; 839 stp->dev_flags &= ~DEV_FLAGS_INUSE;
837 dtp->dev_flags &= ~DEV_FLAGS_INUSE; 840 dtp->dev_flags &= ~DEV_FLAGS_INUSE;
diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
index 85169c08d8dc..f70a10a8cc96 100644
--- a/arch/mips/ar7/platform.c
+++ b/arch/mips/ar7/platform.c
@@ -202,7 +202,7 @@ static struct resource usb_res[] = {
202 .name = "mem", 202 .name = "mem",
203 .flags = IORESOURCE_MEM, 203 .flags = IORESOURCE_MEM,
204 .start = 0x03400000, 204 .start = 0x03400000,
205 .end = 0x034001fff, 205 .end = 0x03401fff,
206 }, 206 },
207}; 207};
208 208
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index 1f4df647c384..272c5ef35bbb 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -191,6 +191,9 @@
191# ifndef cpu_has_64bit_addresses 191# ifndef cpu_has_64bit_addresses
192# define cpu_has_64bit_addresses 0 192# define cpu_has_64bit_addresses 0
193# endif 193# endif
194# ifndef cpu_vmbits
195# define cpu_vmbits 31
196# endif
194#endif 197#endif
195 198
196#ifdef CONFIG_64BIT 199#ifdef CONFIG_64BIT
@@ -209,6 +212,10 @@
209# ifndef cpu_has_64bit_addresses 212# ifndef cpu_has_64bit_addresses
210# define cpu_has_64bit_addresses 1 213# define cpu_has_64bit_addresses 1
211# endif 214# endif
215# ifndef cpu_vmbits
216# define cpu_vmbits cpu_data[0].vmbits
217# define __NEED_VMBITS_PROBE
218# endif
212#endif 219#endif
213 220
214#if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint) 221#if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint)
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index 126044308dec..b39def3f6e03 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -58,6 +58,9 @@ struct cpuinfo_mips {
58 struct cache_desc tcache; /* Tertiary/split secondary cache */ 58 struct cache_desc tcache; /* Tertiary/split secondary cache */
59 int srsets; /* Shadow register sets */ 59 int srsets; /* Shadow register sets */
60 int core; /* physical core number */ 60 int core; /* physical core number */
61#ifdef CONFIG_64BIT
62 int vmbits; /* Virtual memory size in bits */
63#endif
61#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC) 64#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC)
62 /* 65 /*
63 * In the MIPS MT "SMTC" model, each TC is considered 66 * In the MIPS MT "SMTC" model, each TC is considered
diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
index 06f68f43800a..d206000fbfe2 100644
--- a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
+++ b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
@@ -305,6 +305,7 @@ typedef struct dbdma_chan_config {
305 dbdev_tab_t *chan_dest; 305 dbdev_tab_t *chan_dest;
306 au1x_dma_chan_t *chan_ptr; 306 au1x_dma_chan_t *chan_ptr;
307 au1x_ddma_desc_t *chan_desc_base; 307 au1x_ddma_desc_t *chan_desc_base;
308 u32 cdb_membase; /* kmalloc base of above */
308 au1x_ddma_desc_t *get_ptr, *put_ptr, *cur_ptr; 309 au1x_ddma_desc_t *get_ptr, *put_ptr, *cur_ptr;
309 void *chan_callparam; 310 void *chan_callparam;
310 void (*chan_callback)(int, void *); 311 void (*chan_callback)(int, void *);
diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index 9cd508993956..8eda30b467da 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -110,7 +110,9 @@
110#define VMALLOC_START MAP_BASE 110#define VMALLOC_START MAP_BASE
111#define VMALLOC_END \ 111#define VMALLOC_END \
112 (VMALLOC_START + \ 112 (VMALLOC_START + \
113 PTRS_PER_PGD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE - (1UL << 32)) 113 min(PTRS_PER_PGD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, \
114 (1UL << cpu_vmbits)) - (1UL << 32))
115
114#if defined(CONFIG_MODULES) && defined(KBUILD_64BIT_SYM32) && \ 116#if defined(CONFIG_MODULES) && defined(KBUILD_64BIT_SYM32) && \
115 VMALLOC_START != CKSSEG 117 VMALLOC_START != CKSSEG
116/* Load modules into 32bit-compatible segment. */ 118/* Load modules into 32bit-compatible segment. */
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 80e202eca056..9c187a64649b 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -284,6 +284,15 @@ static inline int __cpu_has_fpu(void)
284 return ((cpu_get_fpu_id() & 0xff00) != FPIR_IMP_NONE); 284 return ((cpu_get_fpu_id() & 0xff00) != FPIR_IMP_NONE);
285} 285}
286 286
287static inline void cpu_probe_vmbits(struct cpuinfo_mips *c)
288{
289#ifdef __NEED_VMBITS_PROBE
290 write_c0_entryhi(0x3ffffffffffff000ULL);
291 back_to_back_c0_hazard();
292 c->vmbits = fls64(read_c0_entryhi() & 0x3ffffffffffff000ULL);
293#endif
294}
295
287#define R4K_OPTS (MIPS_CPU_TLB | MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE \ 296#define R4K_OPTS (MIPS_CPU_TLB | MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE \
288 | MIPS_CPU_COUNTER) 297 | MIPS_CPU_COUNTER)
289 298
@@ -969,6 +978,8 @@ __cpuinit void cpu_probe(void)
969 c->srsets = ((read_c0_srsctl() >> 26) & 0x0f) + 1; 978 c->srsets = ((read_c0_srsctl() >> 26) & 0x0f) + 1;
970 else 979 else
971 c->srsets = 1; 980 c->srsets = 1;
981
982 cpu_probe_vmbits(c);
972} 983}
973 984
974__cpuinit void cpu_report(void) 985__cpuinit void cpu_report(void)