diff options
Diffstat (limited to 'arch/arm/mm')
-rw-r--r-- | arch/arm/mm/abort-ev6.S | 17 | ||||
-rw-r--r-- | arch/arm/mm/cache-l2x0.c | 25 | ||||
-rw-r--r-- | arch/arm/mm/init.c | 4 | ||||
-rw-r--r-- | arch/arm/mm/mmu.c | 4 |
4 files changed, 29 insertions, 21 deletions
diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S index ff1f7cc11f87..80741992a9fc 100644 --- a/arch/arm/mm/abort-ev6.S +++ b/arch/arm/mm/abort-ev6.S | |||
@@ -26,18 +26,23 @@ ENTRY(v6_early_abort) | |||
26 | mrc p15, 0, r1, c5, c0, 0 @ get FSR | 26 | mrc p15, 0, r1, c5, c0, 0 @ get FSR |
27 | mrc p15, 0, r0, c6, c0, 0 @ get FAR | 27 | mrc p15, 0, r0, c6, c0, 0 @ get FAR |
28 | /* | 28 | /* |
29 | * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR (erratum 326103). | 29 | * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR. |
30 | * The test below covers all the write situations, including Java bytecodes | ||
31 | */ | 30 | */ |
32 | bic r1, r1, #1 << 11 @ clear bit 11 of FSR | 31 | #ifdef CONFIG_ARM_ERRATA_326103 |
32 | ldr ip, =0x4107b36 | ||
33 | mrc p15, 0, r3, c0, c0, 0 @ get processor id | ||
34 | teq ip, r3, lsr #4 @ r0 ARM1136? | ||
35 | bne do_DataAbort | ||
33 | tst r5, #PSR_J_BIT @ Java? | 36 | tst r5, #PSR_J_BIT @ Java? |
37 | tsteq r5, #PSR_T_BIT @ Thumb? | ||
34 | bne do_DataAbort | 38 | bne do_DataAbort |
35 | do_thumb_abort fsr=r1, pc=r4, psr=r5, tmp=r3 | 39 | bic r1, r1, #1 << 11 @ clear bit 11 of FSR |
36 | ldreq r3, [r4] @ read aborted ARM instruction | 40 | ldr r3, [r4] @ read aborted ARM instruction |
37 | #ifdef CONFIG_CPU_ENDIAN_BE8 | 41 | #ifdef CONFIG_CPU_ENDIAN_BE8 |
38 | reveq r3, r3 | 42 | rev r3, r3 |
39 | #endif | 43 | #endif |
40 | do_ldrd_abort tmp=ip, insn=r3 | 44 | do_ldrd_abort tmp=ip, insn=r3 |
41 | tst r3, #1 << 20 @ L = 0 -> write | 45 | tst r3, #1 << 20 @ L = 0 -> write |
42 | orreq r1, r1, #1 << 11 @ yes. | 46 | orreq r1, r1, #1 << 11 @ yes. |
47 | #endif | ||
43 | b do_DataAbort | 48 | b do_DataAbort |
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index a53fd2aaa2f4..2a8e380501e8 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c | |||
@@ -32,6 +32,7 @@ static void __iomem *l2x0_base; | |||
32 | static DEFINE_RAW_SPINLOCK(l2x0_lock); | 32 | static DEFINE_RAW_SPINLOCK(l2x0_lock); |
33 | static u32 l2x0_way_mask; /* Bitmask of active ways */ | 33 | static u32 l2x0_way_mask; /* Bitmask of active ways */ |
34 | static u32 l2x0_size; | 34 | static u32 l2x0_size; |
35 | static unsigned long sync_reg_offset = L2X0_CACHE_SYNC; | ||
35 | 36 | ||
36 | struct l2x0_regs l2x0_saved_regs; | 37 | struct l2x0_regs l2x0_saved_regs; |
37 | 38 | ||
@@ -61,12 +62,7 @@ static inline void cache_sync(void) | |||
61 | { | 62 | { |
62 | void __iomem *base = l2x0_base; | 63 | void __iomem *base = l2x0_base; |
63 | 64 | ||
64 | #ifdef CONFIG_PL310_ERRATA_753970 | 65 | writel_relaxed(0, base + sync_reg_offset); |
65 | /* write to an unmmapped register */ | ||
66 | writel_relaxed(0, base + L2X0_DUMMY_REG); | ||
67 | #else | ||
68 | writel_relaxed(0, base + L2X0_CACHE_SYNC); | ||
69 | #endif | ||
70 | cache_wait(base + L2X0_CACHE_SYNC, 1); | 66 | cache_wait(base + L2X0_CACHE_SYNC, 1); |
71 | } | 67 | } |
72 | 68 | ||
@@ -85,10 +81,13 @@ static inline void l2x0_inv_line(unsigned long addr) | |||
85 | } | 81 | } |
86 | 82 | ||
87 | #if defined(CONFIG_PL310_ERRATA_588369) || defined(CONFIG_PL310_ERRATA_727915) | 83 | #if defined(CONFIG_PL310_ERRATA_588369) || defined(CONFIG_PL310_ERRATA_727915) |
84 | static inline void debug_writel(unsigned long val) | ||
85 | { | ||
86 | if (outer_cache.set_debug) | ||
87 | outer_cache.set_debug(val); | ||
88 | } | ||
88 | 89 | ||
89 | #define debug_writel(val) outer_cache.set_debug(val) | 90 | static void pl310_set_debug(unsigned long val) |
90 | |||
91 | static void l2x0_set_debug(unsigned long val) | ||
92 | { | 91 | { |
93 | writel_relaxed(val, l2x0_base + L2X0_DEBUG_CTRL); | 92 | writel_relaxed(val, l2x0_base + L2X0_DEBUG_CTRL); |
94 | } | 93 | } |
@@ -98,7 +97,7 @@ static inline void debug_writel(unsigned long val) | |||
98 | { | 97 | { |
99 | } | 98 | } |
100 | 99 | ||
101 | #define l2x0_set_debug NULL | 100 | #define pl310_set_debug NULL |
102 | #endif | 101 | #endif |
103 | 102 | ||
104 | #ifdef CONFIG_PL310_ERRATA_588369 | 103 | #ifdef CONFIG_PL310_ERRATA_588369 |
@@ -331,6 +330,11 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) | |||
331 | else | 330 | else |
332 | ways = 8; | 331 | ways = 8; |
333 | type = "L310"; | 332 | type = "L310"; |
333 | #ifdef CONFIG_PL310_ERRATA_753970 | ||
334 | /* Unmapped register. */ | ||
335 | sync_reg_offset = L2X0_DUMMY_REG; | ||
336 | #endif | ||
337 | outer_cache.set_debug = pl310_set_debug; | ||
334 | break; | 338 | break; |
335 | case L2X0_CACHE_ID_PART_L210: | 339 | case L2X0_CACHE_ID_PART_L210: |
336 | ways = (aux >> 13) & 0xf; | 340 | ways = (aux >> 13) & 0xf; |
@@ -379,7 +383,6 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) | |||
379 | outer_cache.flush_all = l2x0_flush_all; | 383 | outer_cache.flush_all = l2x0_flush_all; |
380 | outer_cache.inv_all = l2x0_inv_all; | 384 | outer_cache.inv_all = l2x0_inv_all; |
381 | outer_cache.disable = l2x0_disable; | 385 | outer_cache.disable = l2x0_disable; |
382 | outer_cache.set_debug = l2x0_set_debug; | ||
383 | 386 | ||
384 | printk(KERN_INFO "%s cache controller enabled\n", type); | 387 | printk(KERN_INFO "%s cache controller enabled\n", type); |
385 | printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n", | 388 | printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n", |
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 595079fa9d1d..8f5813bbffb5 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c | |||
@@ -293,11 +293,11 @@ EXPORT_SYMBOL(pfn_valid); | |||
293 | #endif | 293 | #endif |
294 | 294 | ||
295 | #ifndef CONFIG_SPARSEMEM | 295 | #ifndef CONFIG_SPARSEMEM |
296 | static void arm_memory_present(void) | 296 | static void __init arm_memory_present(void) |
297 | { | 297 | { |
298 | } | 298 | } |
299 | #else | 299 | #else |
300 | static void arm_memory_present(void) | 300 | static void __init arm_memory_present(void) |
301 | { | 301 | { |
302 | struct memblock_region *reg; | 302 | struct memblock_region *reg; |
303 | 303 | ||
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index b86f8933ff91..2c7cf2f9c837 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c | |||
@@ -618,8 +618,8 @@ static void __init alloc_init_section(pud_t *pud, unsigned long addr, | |||
618 | } | 618 | } |
619 | } | 619 | } |
620 | 620 | ||
621 | static void alloc_init_pud(pgd_t *pgd, unsigned long addr, unsigned long end, | 621 | static void __init alloc_init_pud(pgd_t *pgd, unsigned long addr, |
622 | unsigned long phys, const struct mem_type *type) | 622 | unsigned long end, unsigned long phys, const struct mem_type *type) |
623 | { | 623 | { |
624 | pud_t *pud = pud_offset(pgd, addr); | 624 | pud_t *pud = pud_offset(pgd, addr); |
625 | unsigned long next; | 625 | unsigned long next; |