diff options
Diffstat (limited to 'target/linux/brcm47xx-2.6/patches-2.6.22/150-cpu_fixes.patch')
| -rw-r--r-- | target/linux/brcm47xx-2.6/patches-2.6.22/150-cpu_fixes.patch | 331 |
1 files changed, 300 insertions, 31 deletions
diff --git a/target/linux/brcm47xx-2.6/patches-2.6.22/150-cpu_fixes.patch b/target/linux/brcm47xx-2.6/patches-2.6.22/150-cpu_fixes.patch index a3531852c..ebc40f9f9 100644 --- a/target/linux/brcm47xx-2.6/patches-2.6.22/150-cpu_fixes.patch +++ b/target/linux/brcm47xx-2.6/patches-2.6.22/150-cpu_fixes.patch @@ -1,7 +1,7 @@ -Index: linux-2.6.22-rc6/arch/mips/kernel/genex.S +Index: linux-2.6.22/arch/mips/kernel/genex.S =================================================================== ---- linux-2.6.22-rc6.orig/arch/mips/kernel/genex.S 2007-07-04 01:52:47.812492000 +0200 -+++ linux-2.6.22-rc6/arch/mips/kernel/genex.S 2007-07-04 01:53:01.585352750 +0200 +--- linux-2.6.22.orig/arch/mips/kernel/genex.S 2007-07-26 06:29:25.057170943 +0200 ++++ linux-2.6.22/arch/mips/kernel/genex.S 2007-07-26 06:29:40.890073208 +0200 @@ -51,6 +51,10 @@ NESTED(except_vec3_generic, 0, sp) .set push @@ -13,10 +13,10 @@ Index: linux-2.6.22-rc6/arch/mips/kernel/genex.S #if R5432_CP0_INTERRUPT_WAR mfc0 k0, CP0_INDEX #endif -Index: linux-2.6.22-rc6/arch/mips/mm/c-r4k.c +Index: linux-2.6.22/arch/mips/mm/c-r4k.c =================================================================== ---- linux-2.6.22-rc6.orig/arch/mips/mm/c-r4k.c 2007-07-04 01:53:01.545350250 +0200 -+++ linux-2.6.22-rc6/arch/mips/mm/c-r4k.c 2007-07-04 02:17:11.435962750 +0200 +--- linux-2.6.22.orig/arch/mips/mm/c-r4k.c 2007-07-26 06:29:40.826069560 +0200 ++++ linux-2.6.22/arch/mips/mm/c-r4k.c 2007-07-26 06:32:45.956619550 +0200 @@ -29,6 +29,9 @@ #include <asm/cacheflush.h> /* for run_uncached() */ @@ -27,7 +27,19 @@ Index: linux-2.6.22-rc6/arch/mips/mm/c-r4k.c /* * Special Variant of smp_call_function for use by cache functions: * -@@ -93,6 +96,9 @@ +@@ -85,14 +88,21 @@ + + static inline void r4k_blast_dcache_page_dc32(unsigned long addr) + { ++ unsigned long flags; ++ ++ local_irq_save(flags); + R4600_HIT_CACHEOP_WAR_IMPL; + blast_dcache32_page(addr); ++ local_irq_restore(flags); + } + + static void __init r4k_blast_dcache_page_setup(void) { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -37,7 +49,7 @@ Index: linux-2.6.22-rc6/arch/mips/mm/c-r4k.c if (dc_lsize == 0) r4k_blast_dcache_page = (void *)cache_noop; else if (dc_lsize == 16) -@@ -107,6 +113,9 @@ +@@ -107,6 +117,9 @@ { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -47,7 +59,7 @@ Index: linux-2.6.22-rc6/arch/mips/mm/c-r4k.c if (dc_lsize == 0) r4k_blast_dcache_page_indexed = (void *)cache_noop; else if (dc_lsize == 16) -@@ -121,6 +130,9 @@ +@@ -121,6 +134,9 @@ { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -57,26 +69,274 @@ Index: linux-2.6.22-rc6/arch/mips/mm/c-r4k.c if (dc_lsize == 0) r4k_blast_dcache = (void *)cache_noop; else if (dc_lsize == 16) -@@ -538,6 +550,9 @@ - r4k_blast_icache(); - else - protected_blast_icache_range(start, end); +@@ -202,8 +218,12 @@ + + static void (* r4k_blast_icache_page)(unsigned long addr); + ++static void r4k_flush_cache_all(void); + static void __init r4k_blast_icache_page_setup(void) + { ++#ifdef CONFIG_BCM947XX ++ r4k_blast_icache_page = (void *)r4k_flush_cache_all; ++#else + unsigned long ic_lsize = cpu_icache_line_size(); + + if (ic_lsize == 0) +@@ -214,6 +234,7 @@ + r4k_blast_icache_page = blast_icache32_page; + else if (ic_lsize == 64) + r4k_blast_icache_page = blast_icache64_page; ++#endif + } + + +@@ -221,6 +242,9 @@ + + static void __init r4k_blast_icache_page_indexed_setup(void) + { ++#ifdef CONFIG_BCM947XX ++ r4k_blast_icache_page_indexed = (void *)r4k_flush_cache_all; ++#else + unsigned long ic_lsize = cpu_icache_line_size(); + + if (ic_lsize == 0) +@@ -239,6 +263,7 @@ + blast_icache32_page_indexed; + } else if (ic_lsize == 64) + r4k_blast_icache_page_indexed = blast_icache64_page_indexed; ++#endif + } + + static void (* r4k_blast_icache)(void); +@@ -322,12 +347,17 @@ + */ + static inline void local_r4k_flush_cache_all(void * args) + { ++ unsigned long flags; + -+ if (bcm4710) -+ r4k_flush_cache_all(); ++ local_irq_save(flags); + r4k_blast_dcache(); ++ r4k_blast_icache(); ++ local_irq_restore(flags); + } + + static void r4k_flush_cache_all(void) + { +- if (!cpu_has_dc_aliases) ++ if (!cpu_has_dc_aliases && cpu_use_kmap_coherent) + return; + + r4k_on_each_cpu(local_r4k_flush_cache_all, NULL, 1, 1); +@@ -335,6 +365,9 @@ + + static inline void local_r4k___flush_cache_all(void * args) + { ++ unsigned long flags; ++ ++ local_irq_save(flags); + r4k_blast_dcache(); + r4k_blast_icache(); + +@@ -348,6 +381,7 @@ + case CPU_R14000: + r4k_blast_scache(); + } ++ local_irq_restore(flags); } + static void r4k___flush_cache_all(void) +@@ -358,17 +392,21 @@ + static inline void local_r4k_flush_cache_range(void * args) + { + struct vm_area_struct *vma = args; ++ unsigned long flags; + + if (!(cpu_context(smp_processor_id(), vma->vm_mm))) + return; + ++ local_irq_save(flags); + r4k_blast_dcache(); ++ r4k_blast_icache(); ++ local_irq_restore(flags); + } + + static void r4k_flush_cache_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end) + { +- if (!cpu_has_dc_aliases) ++ if (!cpu_has_dc_aliases && cpu_use_kmap_coherent) + return; + + r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1, 1); +@@ -377,6 +415,7 @@ + static inline void local_r4k_flush_cache_mm(void * args) + { + struct mm_struct *mm = args; ++ unsigned long flags; + + if (!cpu_context(smp_processor_id(), mm)) + return; +@@ -395,12 +434,15 @@ + return; + } + ++ local_irq_save(flags); + r4k_blast_dcache(); ++ r4k_blast_icache(); ++ local_irq_restore(flags); + } + + static void r4k_flush_cache_mm(struct mm_struct *mm) + { +- if (!cpu_has_dc_aliases) ++ if (!cpu_has_dc_aliases && cpu_use_kmap_coherent) + return; + + r4k_on_each_cpu(local_r4k_flush_cache_mm, mm, 1, 1); +@@ -420,6 +462,7 @@ + unsigned long paddr = fcp_args->pfn << PAGE_SHIFT; + int exec = vma->vm_flags & VM_EXEC; + struct mm_struct *mm = vma->vm_mm; ++ unsigned long flags; + pgd_t *pgdp; + pud_t *pudp; + pmd_t *pmdp; +@@ -451,8 +494,9 @@ + * for every cache flush operation. So we do indexed flushes + * in that case, which doesn't overly flush the cache too much. + */ ++ local_irq_save(flags); + if ((mm == current->active_mm) && (pte_val(*ptep) & _PAGE_VALID)) { +- if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc)) { ++ if (!cpu_use_kmap_coherent || cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc)) { + r4k_blast_dcache_page(addr); + if (exec && !cpu_icache_snoops_remote_store) + r4k_blast_scache_page(addr); +@@ -460,14 +504,14 @@ + if (exec) + r4k_blast_icache_page(addr); + +- return; ++ goto done; + } + + /* + * Do indexed flush, too much work to get the (possible) TLB refills + * to work correctly. + */ +- if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc)) { ++ if (!cpu_use_kmap_coherent || cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc)) { + r4k_blast_dcache_page_indexed(cpu_has_pindexed_dcache ? + paddr : addr); + if (exec && !cpu_icache_snoops_remote_store) { +@@ -483,6 +527,8 @@ + } else + r4k_blast_icache_page_indexed(addr); + } ++done: ++ local_irq_restore(flags); + } + + static void r4k_flush_cache_page(struct vm_area_struct *vma, +@@ -499,7 +545,11 @@ + + static inline void local_r4k_flush_data_cache_page(void * addr) + { ++ unsigned long flags; ++ ++ local_irq_save(flags); + r4k_blast_dcache_page((unsigned long) addr); ++ local_irq_restore(flags); + } + + static void r4k_flush_data_cache_page(unsigned long addr) +@@ -542,6 +592,9 @@ + static void r4k_flush_icache_range(unsigned long start, unsigned long end) -@@ -618,6 +633,8 @@ + { ++#ifdef CONFIG_BCM947XX ++ r4k_flush_cache_all(); ++#else + struct flush_icache_range_args args; + + args.start = start; +@@ -549,12 +602,15 @@ + + r4k_on_each_cpu(local_r4k_flush_icache_range, &args, 1, 1); + instruction_hazard(); ++#endif + } + + #ifdef CONFIG_DMA_NONCOHERENT + + static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size) + { ++ unsigned long flags; ++ + /* Catch bad driver code */ + BUG_ON(size == 0); + +@@ -571,18 +627,21 @@ + * subset property so we have to flush the primary caches + * explicitly + */ ++ local_irq_save(flags); + if (size >= dcache_size) { + r4k_blast_dcache(); + } else { + R4600_HIT_CACHEOP_WAR_IMPL; + blast_dcache_range(addr, addr + size); + } +- + bc_wback_inv(addr, size); ++ local_irq_restore(flags); + } + + static void r4k_dma_cache_inv(unsigned long addr, unsigned long size) + { ++ unsigned long flags; ++ + /* Catch bad driver code */ + BUG_ON(size == 0); + +@@ -594,6 +653,7 @@ + return; + } + ++ local_irq_save(flags); + if (size >= dcache_size) { + r4k_blast_dcache(); + } else { +@@ -602,6 +662,7 @@ + } + + bc_inv(addr, size); ++ local_irq_restore(flags); + } + #endif /* CONFIG_DMA_NONCOHERENT */ + +@@ -616,8 +677,12 @@ + unsigned long dc_lsize = cpu_dcache_line_size(); + unsigned long sc_lsize = cpu_scache_line_size(); unsigned long addr = (unsigned long) arg; ++ unsigned long flags; ++ local_irq_save(flags); 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) -@@ -1144,6 +1161,17 @@ +@@ -644,6 +709,7 @@ + } + if (MIPS_CACHE_SYNC_WAR) + __asm__ __volatile__ ("sync"); ++ local_irq_restore(flags); + } + + static void r4k_flush_cache_sigtramp(unsigned long addr) +@@ -1144,6 +1210,17 @@ * silly idea of putting something else there ... */ switch (current_cpu_data.cputype) { @@ -94,7 +354,7 @@ Index: linux-2.6.22-rc6/arch/mips/mm/c-r4k.c case CPU_R4000PC: case CPU_R4000SC: case CPU_R4000MC: -@@ -1174,6 +1202,15 @@ +@@ -1174,6 +1251,15 @@ /* Default cache error handler for R4000 and R5000 family */ set_uncached_handler (0x100, &except_vec2_generic, 0x80); @@ -110,7 +370,7 @@ Index: linux-2.6.22-rc6/arch/mips/mm/c-r4k.c probe_pcache(); setup_scache(); -@@ -1219,5 +1256,13 @@ +@@ -1219,5 +1305,13 @@ build_clear_page(); build_copy_page(); local_r4k___flush_cache_all(NULL); @@ -124,10 +384,10 @@ Index: linux-2.6.22-rc6/arch/mips/mm/c-r4k.c coherency_setup(); +#endif } -Index: linux-2.6.22-rc6/arch/mips/mm/tlbex.c +Index: linux-2.6.22/arch/mips/mm/tlbex.c =================================================================== ---- linux-2.6.22-rc6.orig/arch/mips/mm/tlbex.c 2007-07-04 01:53:01.193328250 +0200 -+++ linux-2.6.22-rc6/arch/mips/mm/tlbex.c 2007-07-04 02:17:26.112880000 +0200 +--- linux-2.6.22.orig/arch/mips/mm/tlbex.c 2007-07-26 06:29:40.582055658 +0200 ++++ linux-2.6.22/arch/mips/mm/tlbex.c 2007-07-26 06:32:45.964620005 +0200 @@ -1229,6 +1229,10 @@ #endif } @@ -139,22 +399,31 @@ Index: linux-2.6.22-rc6/arch/mips/mm/tlbex.c static void __init build_r4000_tlb_refill_handler(void) { u32 *p = tlb_handler; -@@ -1243,6 +1247,11 @@ +@@ -1243,6 +1247,10 @@ memset(relocs, 0, sizeof(relocs)); memset(final_handler, 0, sizeof(final_handler)); +#ifdef CONFIG_BCM947XX -+ if (current_cpu_data.cputype == CPU_BCM3302) -+ i_nop(&p); ++ i_nop(&p); +#endif + /* * create the plain linear handler */ -Index: linux-2.6.22-rc6/include/asm-mips/r4kcache.h +@@ -1736,6 +1744,9 @@ + memset(labels, 0, sizeof(labels)); + memset(relocs, 0, sizeof(relocs)); + ++#ifdef CONFIG_BCM947XX ++ i_nop(&p); ++#endif + if (bcm1250_m3_war()) { + i_MFC0(&p, K0, C0_BADVADDR); + i_MFC0(&p, K1, C0_ENTRYHI); +Index: linux-2.6.22/include/asm-mips/r4kcache.h =================================================================== ---- linux-2.6.22-rc6.orig/include/asm-mips/r4kcache.h 2007-07-04 01:52:47.840493750 +0200 -+++ linux-2.6.22-rc6/include/asm-mips/r4kcache.h 2007-07-04 01:53:01.673358250 +0200 +--- linux-2.6.22.orig/include/asm-mips/r4kcache.h 2007-07-26 06:29:25.085172538 +0200 ++++ linux-2.6.22/include/asm-mips/r4kcache.h 2007-07-26 06:29:40.938075943 +0200 @@ -17,6 +17,20 @@ #include <asm/cpu-features.h> #include <asm/mipsmtregs.h> @@ -357,10 +626,10 @@ Index: linux-2.6.22-rc6/include/asm-mips/r4kcache.h +__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD,,, ) #endif /* _ASM_R4KCACHE_H */ -Index: linux-2.6.22-rc6/include/asm-mips/stackframe.h +Index: linux-2.6.22/include/asm-mips/stackframe.h =================================================================== ---- linux-2.6.22-rc6.orig/include/asm-mips/stackframe.h 2007-07-04 01:52:47.852494500 +0200 -+++ linux-2.6.22-rc6/include/asm-mips/stackframe.h 2007-07-04 01:53:01.697359750 +0200 +--- linux-2.6.22.orig/include/asm-mips/stackframe.h 2007-07-26 06:29:25.093172994 +0200 ++++ linux-2.6.22/include/asm-mips/stackframe.h 2007-07-26 06:29:40.962077312 +0200 @@ -350,6 +350,10 @@ .macro RESTORE_SP_AND_RET LONG_L sp, PT_R29(sp) |