upgrade to 2.6.17, probably break some stuff temporary
[openwrt.git] / target / linux / brcm-2.6 / patches / 003-bcm4710_cache_fixes.patch
index eaa5231..c8a08eb 100644 (file)
@@ -1,7 +1,7 @@
-diff -urN linux.old/arch/mips/kernel/genex.S linux.dev/arch/mips/kernel/genex.S
---- 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 @@
+diff -Nur linux-2.6.17/arch/mips/kernel/genex.S linux-2.6.17-owrt/arch/mips/kernel/genex.S
+--- linux-2.6.17/arch/mips/kernel/genex.S      2006-06-18 03:49:35.000000000 +0200
++++ linux-2.6.17-owrt/arch/mips/kernel/genex.S 2006-06-18 15:36:58.000000000 +0200
+@@ -73,6 +73,10 @@
        .set    push
        .set    mips3
        .set    noat
@@ -12,9 +12,9 @@ diff -urN linux.old/arch/mips/kernel/genex.S linux.dev/arch/mips/kernel/genex.S
        mfc0    k1, CP0_CAUSE
        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     2006-03-20 06:53:29.000000000 +0100
-+++ linux.dev/arch/mips/mm/c-r4k.c     2006-03-21 12:19:26.000000000 +0100
+diff -Nur linux-2.6.17/arch/mips/mm/c-r4k.c linux-2.6.17-owrt/arch/mips/mm/c-r4k.c
+--- linux-2.6.17/arch/mips/mm/c-r4k.c  2006-06-18 03:49:35.000000000 +0200
++++ linux-2.6.17-owrt/arch/mips/mm/c-r4k.c     2006-06-18 15:36:58.000000000 +0200
 @@ -14,6 +14,12 @@
  #include <linux/mm.h>
  #include <linux/bitops.h>
@@ -28,17 +28,17 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
  #include <asm/bcache.h>
  #include <asm/bootinfo.h>
  #include <asm/cache.h>
-@@ -29,6 +35,9 @@
- #include <asm/war.h>
+@@ -30,6 +36,9 @@
  #include <asm/cacheflush.h> /* for run_uncached() */
  
 +/* For enabling BCM4710 cache workarounds */
 +int bcm4710 = 0;
 +
  /*
-  * Must die.
-  */
-@@ -73,7 +82,9 @@
+  * Special Variant of smp_call_function for use by cache functions:
+  *
+@@ -94,7 +103,9 @@
  {
        unsigned long  dc_lsize = cpu_dcache_line_size();
  
@@ -49,7 +49,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
                r4k_blast_dcache_page = blast_dcache16_page;
        else if (dc_lsize == 32)
                r4k_blast_dcache_page = r4k_blast_dcache_page_dc32;
-@@ -85,7 +96,9 @@
+@@ -106,7 +117,9 @@
  {
        unsigned long dc_lsize = cpu_dcache_line_size();
  
@@ -60,7 +60,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
                r4k_blast_dcache_page_indexed = blast_dcache16_page_indexed;
        else if (dc_lsize == 32)
                r4k_blast_dcache_page_indexed = blast_dcache32_page_indexed;
-@@ -97,7 +110,9 @@
+@@ -118,7 +131,9 @@
  {
        unsigned long dc_lsize = cpu_dcache_line_size();
  
@@ -71,7 +71,7 @@ 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;
-@@ -660,6 +675,8 @@
+@@ -683,6 +698,8 @@
        unsigned long addr = (unsigned long) arg;
  
        R4600_HIT_CACHEOP_WAR_IMPL;
@@ -80,7 +80,7 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
        protected_writeback_dcache_line(addr & ~(dc_lsize - 1));
        if (!cpu_icache_snoops_remote_store && scache_size)
                protected_writeback_scache_line(addr & ~(sc_lsize - 1));
-@@ -1136,6 +1153,16 @@
+@@ -1189,6 +1206,16 @@
  static inline void coherency_setup(void)
  {
        change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT);
@@ -97,7 +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
-@@ -1165,6 +1192,15 @@
+@@ -1227,6 +1254,15 @@
  
        /* Default cache error handler for R4000 and R5000 family */
        set_uncached_handler (0x100, &except_vec2_generic, 0x80);
@@ -113,10 +113,10 @@ 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     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 @@
+diff -Nur linux-2.6.17/arch/mips/mm/tlbex.c linux-2.6.17-owrt/arch/mips/mm/tlbex.c
+--- linux-2.6.17/arch/mips/mm/tlbex.c  2006-06-18 15:34:19.000000000 +0200
++++ linux-2.6.17-owrt/arch/mips/mm/tlbex.c     2006-06-18 15:36:58.000000000 +0200
+@@ -38,6 +38,10 @@
  
  /* #define DEBUG_TLB */
  
@@ -127,7 +127,7 @@ diff -urN linux.old/arch/mips/mm/tlbex.c linux.dev/arch/mips/mm/tlbex.c
  static __init int __attribute__((unused)) r45k_bvahwbug(void)
  {
        /* XXX: We should probe for the presence of this bug, but we don't. */
-@@ -1152,6 +1156,12 @@
+@@ -1184,6 +1188,12 @@
        memset(relocs, 0, sizeof(relocs));
        memset(final_handler, 0, sizeof(final_handler));
  
@@ -140,12 +140,12 @@ 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      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>
+diff -Nur linux-2.6.17/include/asm-mips/r4kcache.h linux-2.6.17-owrt/include/asm-mips/r4kcache.h
+--- linux-2.6.17/include/asm-mips/r4kcache.h   2006-06-18 03:49:35.000000000 +0200
++++ linux-2.6.17-owrt/include/asm-mips/r4kcache.h      2006-06-18 15:56:57.000000000 +0200
+@@ -17,6 +17,18 @@
  #include <asm/cpu-features.h>
+ #include <asm/mipsmtregs.h>
  
 +#ifdef CONFIG_BCM4710
 +#define BCM4710_DUMMY_RREG() (((sbconfig_t *)(KSEG1ADDR(SB_ENUM_BASE + SBCONFIGOFF)))->sbimstate)
@@ -162,29 +162,31 @@ 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:
-@@ -46,6 +58,7 @@
+@@ -150,6 +162,7 @@
  static inline void flush_dcache_line_indexed(unsigned long addr)
  {
+       __dflush_prologue
 +      BCM4710_DUMMY_RREG();
        cache_op(Index_Writeback_Inv_D, addr);
+       __dflush_epilogue
  }
-@@ -61,11 +74,13 @@
+@@ -169,6 +182,7 @@
  static inline void flush_dcache_line(unsigned long addr)
  {
+       __dflush_prologue
 +      BCM4710_DUMMY_RREG();
        cache_op(Hit_Writeback_Inv_D, addr);
+       __dflush_epilogue
  }
+@@ -176,6 +190,7 @@
  static inline void invalidate_dcache_line(unsigned long addr)
  {
+       __dflush_prologue
 +      BCM4710_DUMMY_RREG();
        cache_op(Hit_Invalidate_D, addr);
+       __dflush_epilogue
  }
-@@ -97,6 +112,7 @@
+@@ -208,6 +223,7 @@
   */
  static inline void protected_flush_icache_line(unsigned long addr)
  {
@@ -192,7 +194,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
        protected_cache_op(Hit_Invalidate_I, addr);
  }
  
-@@ -108,6 +124,7 @@
+@@ -219,6 +235,7 @@
   */
  static inline void protected_writeback_dcache_line(unsigned long addr)
  {
@@ -200,7 +202,7 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
        protected_cache_op(Hit_Writeback_Inv_D, addr);
  }
  
-@@ -228,8 +245,52 @@
+@@ -339,8 +356,52 @@
                : "r" (base),                                           \
                  "i" (op));
  
@@ -254,30 +256,33 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
  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;                                         \
+@@ -352,6 +413,7 @@
+                                                                       \
+       __##pfx##flush_prologue                                         \
                                                                        \
 +      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;                           \
+@@ -366,6 +428,7 @@
+                                                                       \
+       __##pfx##flush_prologue                                         \
                                                                        \
 +      war                                                             \
        do {                                                            \
                cache##lsize##_unroll32(start,hitop);                   \
                start += lsize * 32;                                    \
-@@ -265,29 +328,31 @@
+@@ -384,6 +447,8 @@
                               current_cpu_data.desc.waybit;            \
        unsigned long ws, addr;                                         \
                                                                        \
 +      war                                                             \
++                                                                      \
+       __##pfx##flush_prologue                                         \
+                                                                       \
        for (ws = 0; ws < ws_end; ws += ws_inc)                         \
-               for (addr = start; addr < end; addr += lsize * 32)      \
-                       cache##lsize##_unroll32(addr|ws,indexop);       \
+@@ -393,24 +458,25 @@
+       __##pfx##flush_epilogue                                         \
  }
  
 -__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 16)
@@ -309,11 +314,11 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
        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 @@
-       }                                                               \
+                                                                       \
+       __##pfx##flush_prologue                                         \
+                                                                       \
+@@ -424,13 +490,13 @@
+       __##pfx##flush_epilogue                                         \
  }
  
 -__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_)
@@ -328,13 +333,15 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
 +__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_s, scache, Hit_Invalidate_SD, )
 +__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, , )
++__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD, , )
  
  #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    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 @@
+diff -Nur linux-2.6.17/include/asm-mips/stackframe.h linux-2.6.17-owrt/include/asm-mips/stackframe.h
+--- linux-2.6.17/include/asm-mips/stackframe.h 2006-06-18 03:49:35.000000000 +0200
++++ linux-2.6.17-owrt/include/asm-mips/stackframe.h    2006-06-18 15:36:58.000000000 +0200
+@@ -361,6 +361,10 @@
                .macro  RESTORE_SP_AND_RET
                LONG_L  sp, PT_R29(sp)
                .set    mips3