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update bcm4710 cache fixes for linux 2.6.16

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SVN-Revision: 3440
master
Felix Fietkau 19 years ago
parent bc422003f9
commit 2e9099aa07
1 changed files with 113 additions and 82 deletions
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  1. 195
      openwrt/target/linux/brcm-2.6/patches/003-bcm4710_cache_fixes.patch

195
openwrt/target/linux/brcm-2.6/patches/003-bcm4710_cache_fixes.patch
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@ -1,6 +1,6 @@
diff -urN linux.old/arch/mips/kernel/genex.S linux.dev/arch/mips/kernel/genex.S
--- linux.old/arch/mips/kernel/genex.S 2005-12-04 06:10:42.000000000 +0100
+++ linux.dev/arch/mips/kernel/genex.S 2005-12-18 05:30:48.564937750 +0100
--- linux.old/arch/mips/kernel/genex.S 2006-03-20 06:53:29.000000000 +0100
+++ linux.dev/arch/mips/kernel/genex.S 2006-03-21 12:19:26.000000000 +0100
@@ -72,6 +72,10 @@
.set push
.set mips3
@ -13,8 +13,8 @@ diff -urN linux.old/arch/mips/kernel/genex.S linux.dev/arch/mips/kernel/genex.S
li k0, 31<<2
andi k1, k1, 0x7c
diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
--- linux.old/arch/mips/mm/c-r4k.c 2005-12-04 06:10:42.000000000 +0100
+++ linux.dev/arch/mips/mm/c-r4k.c 2005-12-18 06:08:19.112437750 +0100
--- linux.old/arch/mips/mm/c-r4k.c 2006-03-20 06:53:29.000000000 +0100
+++ linux.dev/arch/mips/mm/c-r4k.c 2006-03-21 12:19:26.000000000 +0100
@@ -14,6 +14,12 @@
#include <linux/mm.h>
#include <linux/bitops.h>
@ -71,48 +71,16 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
r4k_blast_dcache = blast_dcache16;
else if (dc_lsize == 32)
r4k_blast_dcache = blast_dcache32;
@@ -486,6 +501,9 @@
addr = start & ~(dc_lsize - 1);
aend = (end - 1) & ~(dc_lsize - 1);
+ BCM4710_PROTECTED_FILL_TLB(addr);
+ BCM4710_PROTECTED_FILL_TLB(aend);
+
while (1) {
/* Hit_Writeback_Inv_D */
protected_writeback_dcache_line(addr);
@@ -657,6 +675,10 @@
R4600_HIT_CACHEOP_WAR_IMPL;
a = addr & ~(dc_lsize - 1);
end = (addr + size - 1) & ~(dc_lsize - 1);
+
+ BCM4710_FILL_TLB(a);
+ BCM4710_FILL_TLB(end);
+
while (1) {
flush_dcache_line(a); /* Hit_Writeback_Inv_D */
if (a == end)
@@ -702,6 +724,10 @@
R4600_HIT_CACHEOP_WAR_IMPL;
a = addr & ~(dc_lsize - 1);
end = (addr + size - 1) & ~(dc_lsize - 1);
+
+ BCM4710_FILL_TLB(a);
+ BCM4710_FILL_TLB(end);
+
while (1) {
flush_dcache_line(a); /* Hit_Writeback_Inv_D */
if (a == end)
@@ -727,6 +753,8 @@
@@ -660,6 +675,8 @@
unsigned long addr = (unsigned long) arg;
R4600_HIT_CACHEOP_WAR_IMPL;
+ BCM4710_PROTECTED_FILL_TLB(addr);
+ BCM4710_PROTECTED_FILL_TLB(addr + 4);
protected_writeback_dcache_line(addr & ~(dc_lsize - 1));
if (!cpu_icache_snoops_remote_store)
if (!cpu_icache_snoops_remote_store && scache_size)
protected_writeback_scache_line(addr & ~(sc_lsize - 1));
@@ -1202,6 +1230,16 @@
@@ -1136,6 +1153,16 @@
static inline void coherency_setup(void)
{
change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT);
@ -129,7 +97,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
/*
* c0_status.cu=0 specifies that updates by the sc instruction use
@@ -1231,6 +1269,15 @@
@@ -1165,6 +1192,15 @@
/* Default cache error handler for R4000 and R5000 family */
set_uncached_handler (0x100, &except_vec2_generic, 0x80);
@ -146,8 +114,8 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
probe_pcache();
setup_scache();
diff -urN linux.old/arch/mips/mm/tlbex.c linux.dev/arch/mips/mm/tlbex.c
--- linux.old/arch/mips/mm/tlbex.c 2005-12-15 12:57:27.945158000 +0100
+++ linux.dev/arch/mips/mm/tlbex.c 2005-12-18 06:06:17.916863500 +0100
--- linux.old/arch/mips/mm/tlbex.c 2006-03-21 12:12:38.000000000 +0100
+++ linux.dev/arch/mips/mm/tlbex.c 2006-03-21 12:19:26.000000000 +0100
@@ -28,6 +28,10 @@
/* #define DEBUG_TLB */
@ -173,11 +141,11 @@ diff -urN linux.old/arch/mips/mm/tlbex.c linux.dev/arch/mips/mm/tlbex.c
* create the plain linear handler
*/
diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kcache.h
--- linux.old/include/asm-mips/r4kcache.h 2005-12-17 22:39:19.281320000 +0100
+++ linux.dev/include/asm-mips/r4kcache.h 2005-12-18 05:22:06.020280750 +0100
@@ -15,6 +15,18 @@
#include <asm/asm.h>
--- linux.old/include/asm-mips/r4kcache.h 2006-03-20 06:53:29.000000000 +0100
+++ linux.dev/include/asm-mips/r4kcache.h 2006-03-21 18:40:32.000000000 +0100
@@ -16,6 +16,18 @@
#include <asm/cacheops.h>
#include <asm/cpu-features.h>
+#ifdef CONFIG_BCM4710
+#define BCM4710_DUMMY_RREG() (((sbconfig_t *)(KSEG1ADDR(SB_ENUM_BASE + SBCONFIGOFF)))->sbimstate)
@ -194,7 +162,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
/*
* This macro return a properly sign-extended address suitable as base address
* for indexed cache operations. Two issues here:
@@ -45,6 +57,7 @@
@@ -46,6 +58,7 @@
static inline void flush_dcache_line_indexed(unsigned long addr)
{
@ -202,7 +170,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
cache_op(Index_Writeback_Inv_D, addr);
}
@@ -60,11 +73,13 @@
@@ -61,11 +74,13 @@
static inline void flush_dcache_line(unsigned long addr)
{
@ -216,15 +184,23 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
cache_op(Hit_Invalidate_D, addr);
}
@@ -104,6 +119,7 @@
@@ -97,6 +112,7 @@
*/
static inline void protected_flush_icache_line(unsigned long addr)
{
+ BCM4710_DUMMY_RREG();
protected_cache_op(Hit_Invalidate_I, addr);
}
@@ -108,6 +124,7 @@
*/
static inline void protected_writeback_dcache_line(unsigned long addr)
{
+ BCM4710_DUMMY_RREG();
__asm__ __volatile__(
" .set push \n"
" .set noreorder \n"
@@ -166,6 +182,49 @@
protected_cache_op(Hit_Writeback_Inv_D, addr);
}
@@ -228,8 +245,52 @@
: "r" (base), \
"i" (op));
@ -271,38 +247,93 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
+ }
+}
+
static inline void blast_dcache16(void)
{
unsigned long start = INDEX_BASE;
@@ -213,7 +272,8 @@
unsigned long ws_end = current_cpu_data.icache.ways <<
current_cpu_data.icache.waybit;
unsigned long ws, addr;
-
+
+ BCM4710_FILL_TLB(start);
for (ws = 0; ws < ws_end; ws += ws_inc)
for (addr = start; addr < end; addr += 0x200)
cache16_unroll32(addr|ws,Index_Invalidate_I);
@@ -357,6 +417,7 @@
current_cpu_data.icache.waybit;
unsigned long ws, addr;
+
/* build blast_xxx, blast_xxx_page, blast_xxx_page_indexed */
-#define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize) \
+#define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize, war) \
static inline void blast_##pfx##cache##lsize(void) \
{ \
unsigned long start = INDEX_BASE; \
@@ -239,6 +300,7 @@
current_cpu_data.desc.waybit; \
unsigned long ws, addr; \
\
+ war \
for (ws = 0; ws < ws_end; ws += ws_inc) \
for (addr = start; addr < end; addr += lsize * 32) \
cache##lsize##_unroll32(addr|ws,indexop); \
@@ -249,6 +311,7 @@
unsigned long start = page; \
unsigned long end = page + PAGE_SIZE; \
\
+ war \
do { \
cache##lsize##_unroll32(start,hitop); \
start += lsize * 32; \
@@ -265,29 +328,31 @@
current_cpu_data.desc.waybit; \
unsigned long ws, addr; \
\
+ war \
for (ws = 0; ws < ws_end; ws += ws_inc) \
for (addr = start; addr < end; addr += lsize * 32) \
cache##lsize##_unroll32(addr|ws,indexop); \
}
+ BCM4710_FILL_TLB(start);
for (ws = 0; ws < ws_end; ws += ws_inc)
for (addr = start; addr < end; addr += 0x400)
cache32_unroll32(addr|ws,Index_Invalidate_I);
@@ -471,6 +532,7 @@
unsigned long start = page;
unsigned long end = start + PAGE_SIZE;
-__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 16)
-__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16)
-__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16)
-__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 32)
-__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32)
-__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 32)
-__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64)
-__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64)
-__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128)
+__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 16, )
+__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16, BCM4710_FILL_TLB(start);)
+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16, )
+__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 32, )
+__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32, BCM4710_FILL_TLB(start);)
+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 32, )
+__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64, BCM4710_FILL_TLB(start);)
+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64, )
+__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128, )
+ BCM4710_FILL_TLB(start);
do {
cache64_unroll32(start,Hit_Invalidate_I);
start += 0x800;
/* build blast_xxx_range, protected_blast_xxx_range */
-#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot) \
+#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, war) \
static inline void prot##blast_##pfx##cache##_range(unsigned long start, \
unsigned long end) \
{ \
unsigned long lsize = cpu_##desc##_line_size(); \
unsigned long addr = start & ~(lsize - 1); \
unsigned long aend = (end - 1) & ~(lsize - 1); \
+ war \
while (1) { \
prot##cache_op(hitop, addr); \
if (addr == aend) \
@@ -296,12 +361,12 @@
} \
}
-__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_)
-__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_)
-__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_)
-__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, )
-__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, )
+__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_, BCM4710_PROTECTED_FILL_TLB(addr); BCM4710_PROTECTED_FILL_TLB(aend);)
+__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, )
+__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_, )
+__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, , BCM4710_FILL_TLB(addr); BCM4710_FILL_TLB(aend);)
+__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, , )
/* blast_inv_dcache_range */
-__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, )
+__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, , )
#endif /* _ASM_R4KCACHE_H */
diff -urN linux.old/include/asm-mips/stackframe.h linux.dev/include/asm-mips/stackframe.h
--- linux.old/include/asm-mips/stackframe.h 2005-12-04 06:10:42.000000000 +0100
+++ linux.dev/include/asm-mips/stackframe.h 2005-12-18 05:33:02.405302250 +0100
--- linux.old/include/asm-mips/stackframe.h 2006-03-20 06:53:29.000000000 +0100
+++ linux.dev/include/asm-mips/stackframe.h 2006-03-21 12:19:26.000000000 +0100
@@ -285,6 +285,10 @@
.macro RESTORE_SP_AND_RET
LONG_L sp, PT_R29(sp)

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