diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-2.6.38/150-cpu_fixes.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-2.6.38/150-cpu_fixes.patch | 367 |
1 files changed, 0 insertions, 367 deletions
diff --git a/target/linux/brcm47xx/patches-2.6.38/150-cpu_fixes.patch b/target/linux/brcm47xx/patches-2.6.38/150-cpu_fixes.patch deleted file mode 100644 index 9debd5942a..0000000000 --- a/target/linux/brcm47xx/patches-2.6.38/150-cpu_fixes.patch +++ /dev/null @@ -1,367 +0,0 @@ ---- a/arch/mips/include/asm/r4kcache.h -+++ b/arch/mips/include/asm/r4kcache.h -@@ -17,6 +17,20 @@ - #include <asm/cpu-features.h> - #include <asm/mipsmtregs.h> - -+#ifdef CONFIG_BCM47XX -+#include <asm/paccess.h> -+#include <linux/ssb/ssb.h> -+#define BCM4710_DUMMY_RREG() ((void) *((u8 *) KSEG1ADDR(SSB_ENUM_BASE))) -+ -+#define BCM4710_FILL_TLB(addr) (*(volatile unsigned long *)(addr)) -+#define BCM4710_PROTECTED_FILL_TLB(addr) ({ unsigned long x; get_dbe(x, (volatile unsigned long *)(addr)); }) -+#else -+#define BCM4710_DUMMY_RREG() -+ -+#define BCM4710_FILL_TLB(addr) -+#define BCM4710_PROTECTED_FILL_TLB(addr) -+#endif -+ - /* - * This macro return a properly sign-extended address suitable as base address - * for indexed cache operations. Two issues here: -@@ -150,6 +164,7 @@ static inline void flush_icache_line_ind - static inline void flush_dcache_line_indexed(unsigned long addr) - { - __dflush_prologue -+ BCM4710_DUMMY_RREG(); - cache_op(Index_Writeback_Inv_D, addr); - __dflush_epilogue - } -@@ -169,6 +184,7 @@ static inline void flush_icache_line(uns - 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 +192,7 @@ static inline void flush_dcache_line(uns - static inline void invalidate_dcache_line(unsigned long addr) - { - __dflush_prologue -+ BCM4710_DUMMY_RREG(); - cache_op(Hit_Invalidate_D, addr); - __dflush_epilogue - } -@@ -208,6 +225,7 @@ static inline void flush_scache_line(uns - */ - static inline void protected_flush_icache_line(unsigned long addr) - { -+ BCM4710_DUMMY_RREG(); - protected_cache_op(Hit_Invalidate_I, addr); - } - -@@ -219,6 +237,7 @@ static inline void protected_flush_icach - */ - static inline void protected_writeback_dcache_line(unsigned long addr) - { -+ BCM4710_DUMMY_RREG(); - protected_cache_op(Hit_Writeback_Inv_D, addr); - } - -@@ -339,8 +358,52 @@ static inline void invalidate_tcache_pag - : "r" (base), \ - "i" (op)); - -+static inline void blast_dcache(void) -+{ -+ unsigned long start = KSEG0; -+ unsigned long dcache_size = current_cpu_data.dcache.waysize * current_cpu_data.dcache.ways; -+ unsigned long end = (start + dcache_size); -+ -+ do { -+ BCM4710_DUMMY_RREG(); -+ cache_op(Index_Writeback_Inv_D, start); -+ start += current_cpu_data.dcache.linesz; -+ } while(start < end); -+} -+ -+static inline void blast_dcache_page(unsigned long page) -+{ -+ unsigned long start = page; -+ unsigned long end = start + PAGE_SIZE; -+ -+ BCM4710_FILL_TLB(start); -+ do { -+ BCM4710_DUMMY_RREG(); -+ cache_op(Hit_Writeback_Inv_D, start); -+ start += current_cpu_data.dcache.linesz; -+ } while(start < end); -+} -+ -+static inline void blast_dcache_page_indexed(unsigned long page) -+{ -+ unsigned long start = page; -+ unsigned long end = start + PAGE_SIZE; -+ unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit; -+ unsigned long ws_end = current_cpu_data.dcache.ways << -+ current_cpu_data.dcache.waybit; -+ unsigned long ws, addr; -+ for (ws = 0; ws < ws_end; ws += ws_inc) { -+ start = page + ws; -+ for (addr = start; addr < end; addr += current_cpu_data.dcache.linesz) { -+ BCM4710_DUMMY_RREG(); -+ cache_op(Index_Writeback_Inv_D, 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; \ -@@ -352,6 +415,7 @@ static inline void blast_##pfx##cache##l - \ - __##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); \ -@@ -366,6 +430,7 @@ static inline void blast_##pfx##cache##l - \ - __##pfx##flush_prologue \ - \ -+ war \ - do { \ - cache##lsize##_unroll32(start, hitop); \ - start += lsize * 32; \ -@@ -384,6 +449,8 @@ static inline void blast_##pfx##cache##l - current_cpu_data.desc.waybit; \ - unsigned long ws, addr; \ - \ -+ war \ -+ \ - __##pfx##flush_prologue \ - \ - for (ws = 0; ws < ws_end; ws += ws_inc) \ -@@ -393,36 +460,38 @@ static inline void blast_##pfx##cache##l - __##pfx##flush_epilogue \ - } - --__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(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 64) --__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(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 16) --__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32) --__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 16) --__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32) --__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64) --__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_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(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 64, ) -+__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, ) -+ -+__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 16, ) -+__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32, ) -+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 16, ) -+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32, ) -+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64, ) -+__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128, ) - - /* 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, war2) \ - 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 \ - \ - __##pfx##flush_prologue \ - \ - while (1) { \ -+ war2 \ - prot##cache_op(hitop, addr); \ - if (addr == aend) \ - break; \ -@@ -432,13 +501,13 @@ static inline void prot##blast_##pfx##ca - __##pfx##flush_epilogue \ - } - --__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);, BCM4710_DUMMY_RREG();) -+__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);, BCM4710_DUMMY_RREG();) -+__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,,,BCM4710_DUMMY_RREG();) -+__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD,,, ) - - #endif /* _ASM_R4KCACHE_H */ ---- a/arch/mips/include/asm/stackframe.h -+++ b/arch/mips/include/asm/stackframe.h -@@ -449,6 +449,10 @@ - .macro RESTORE_SP_AND_RET - LONG_L sp, PT_R29(sp) - .set mips3 -+#ifdef CONFIG_BCM47XX -+ nop -+ nop -+#endif - eret - .set mips0 - .endm ---- a/arch/mips/kernel/genex.S -+++ b/arch/mips/kernel/genex.S -@@ -52,6 +52,10 @@ NESTED(except_vec1_generic, 0, sp) - NESTED(except_vec3_generic, 0, sp) - .set push - .set noat -+#ifdef CONFIG_BCM47XX -+ nop -+ nop -+#endif - #if R5432_CP0_INTERRUPT_WAR - mfc0 k0, CP0_INDEX - #endif ---- a/arch/mips/mm/c-r4k.c -+++ b/arch/mips/mm/c-r4k.c -@@ -35,6 +35,9 @@ - #include <asm/cacheflush.h> /* for run_uncached() */ - - -+/* For enabling BCM4710 cache workarounds */ -+int bcm4710 = 0; -+ - /* - * Special Variant of smp_call_function for use by cache functions: - * -@@ -111,6 +114,9 @@ static void __cpuinit r4k_blast_dcache_p - { - unsigned long dc_lsize = cpu_dcache_line_size(); - -+ if (bcm4710) -+ r4k_blast_dcache_page = blast_dcache_page; -+ else - if (dc_lsize == 0) - r4k_blast_dcache_page = (void *)cache_noop; - else if (dc_lsize == 16) -@@ -127,6 +133,9 @@ static void __cpuinit r4k_blast_dcache_p - { - unsigned long dc_lsize = cpu_dcache_line_size(); - -+ if (bcm4710) -+ r4k_blast_dcache_page_indexed = blast_dcache_page_indexed; -+ else - if (dc_lsize == 0) - r4k_blast_dcache_page_indexed = (void *)cache_noop; - else if (dc_lsize == 16) -@@ -143,6 +152,9 @@ static void __cpuinit r4k_blast_dcache_s - { - unsigned long dc_lsize = cpu_dcache_line_size(); - -+ if (bcm4710) -+ r4k_blast_dcache = blast_dcache; -+ else - if (dc_lsize == 0) - r4k_blast_dcache = (void *)cache_noop; - else if (dc_lsize == 16) -@@ -679,6 +691,8 @@ static void local_r4k_flush_cache_sigtra - unsigned long addr = (unsigned long) arg; - - R4600_HIT_CACHEOP_WAR_IMPL; -+ BCM4710_PROTECTED_FILL_TLB(addr); -+ BCM4710_PROTECTED_FILL_TLB(addr + 4); - if (dc_lsize) - protected_writeback_dcache_line(addr & ~(dc_lsize - 1)); - if (!cpu_icache_snoops_remote_store && scache_size) -@@ -1310,6 +1324,17 @@ static void __cpuinit coherency_setup(vo - * silly idea of putting something else there ... - */ - switch (current_cpu_type()) { -+ case CPU_BMIPS3300: -+ { -+ u32 cm; -+ cm = read_c0_diag(); -+ /* Enable icache */ -+ cm |= (1 << 31); -+ /* Enable dcache */ -+ cm |= (1 << 30); -+ write_c0_diag(cm); -+ } -+ break; - case CPU_R4000PC: - case CPU_R4000SC: - case CPU_R4000MC: -@@ -1366,6 +1391,15 @@ void __cpuinit r4k_cache_init(void) - break; - } - -+ /* Check if special workarounds are required */ -+#ifdef CONFIG_BCM47XX -+ if (current_cpu_data.cputype == CPU_BMIPS32 && (current_cpu_data.processor_id & 0xff) == 0) { -+ printk("Enabling BCM4710A0 cache workarounds.\n"); -+ bcm4710 = 1; -+ } else -+#endif -+ bcm4710 = 0; -+ - probe_pcache(); - setup_scache(); - -@@ -1424,5 +1458,13 @@ void __cpuinit r4k_cache_init(void) - #if !defined(CONFIG_MIPS_CMP) - local_r4k___flush_cache_all(NULL); - #endif -+#ifdef CONFIG_BCM47XX -+ { -+ static void (*_coherency_setup)(void); -+ _coherency_setup = (void (*)(void)) KSEG1ADDR(coherency_setup); -+ _coherency_setup(); -+ } -+#else - coherency_setup(); -+#endif - } ---- a/arch/mips/mm/tlbex.c -+++ b/arch/mips/mm/tlbex.c -@@ -1187,6 +1187,9 @@ static void __cpuinit build_r4000_tlb_re - /* No need for uasm_i_nop */ - } - -+#ifdef CONFIG_BCM47XX -+ uasm_i_nop(&p); -+#endif - #ifdef CONFIG_64BIT - build_get_pmde64(&p, &l, &r, K0, K1); /* get pmd in K1 */ - #else -@@ -1706,6 +1709,9 @@ build_r4000_tlbchange_handler_head(u32 * - struct uasm_reloc **r, unsigned int pte, - unsigned int ptr) - { -+#ifdef CONFIG_BCM47XX -+ uasm_i_nop(p); -+#endif - #ifdef CONFIG_64BIT - build_get_pmde64(p, l, r, pte, ptr); /* get pmd in ptr */ - #else |