From 38b0803dfa28720c5efcb14dfcc224bf416fc50f Mon Sep 17 00:00:00 2001 From: nbd Date: Mon, 13 Jun 2005 13:59:38 +0000 Subject: fix bcm47xx cache fixes git-svn-id: svn://svn.openwrt.org/openwrt/trunk@1224 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../patches/brcm/003-bcm47xx_cache_fixes.patch | 520 +++++++++++++++++++++ .../patches/brcm/003-bcm47xx_workarounds.patch | 122 ----- .../linux-2.4/patches/brcm/004-bcm94710_mmu.patch | 282 ----------- 3 files changed, 520 insertions(+), 404 deletions(-) create mode 100644 openwrt/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch delete mode 100644 openwrt/target/linux/linux-2.4/patches/brcm/003-bcm47xx_workarounds.patch delete mode 100644 openwrt/target/linux/linux-2.4/patches/brcm/004-bcm94710_mmu.patch (limited to 'openwrt/target/linux/linux-2.4/patches') diff --git a/openwrt/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch b/openwrt/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch new file mode 100644 index 000000000..737571b94 --- /dev/null +++ b/openwrt/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch @@ -0,0 +1,520 @@ +diff -urN linux.old/arch/mips/mm/tlbex-mips32.S linux.dev/arch/mips/mm/tlbex-mips32.S +--- linux.old/arch/mips/mm/tlbex-mips32.S 2005-05-28 17:42:03.000000000 +0200 ++++ linux.dev/arch/mips/mm/tlbex-mips32.S 2005-05-28 21:48:55.000000000 +0200 +@@ -90,6 +90,9 @@ + .set noat + LEAF(except_vec0_r4000) + .set mips3 ++#ifdef CONFIG_BCM4704 ++ nop ++#endif + #ifdef CONFIG_SMP + mfc0 k1, CP0_CONTEXT + la k0, pgd_current +diff -urN linux.old/arch/mips/mm/pg-r4k.c linux.dev/arch/mips/mm/pg-r4k.c +--- linux.old/arch/mips/mm/pg-r4k.c 2005-01-19 15:09:29.000000000 +0100 ++++ linux.dev/arch/mips/mm/pg-r4k.c 2005-05-28 21:57:52.000000000 +0200 +@@ -180,6 +180,7 @@ + + static inline void build_cdex_s(void) + { ++#if !defined(CONFIG_BCM4704) && !defined(CONFIG_BCM4710) + union mips_instruction mi; + + if ((store_offset & (cpu_scache_line_size() - 1))) +@@ -192,10 +193,12 @@ + mi.c_format.simmediate = store_offset; + + emit_instruction(mi); ++#endif + } + + static inline void build_cdex_p(void) + { ++#if !defined(CONFIG_BCM4704) && !defined(CONFIG_BCM4710) + union mips_instruction mi; + + if (store_offset & (cpu_dcache_line_size() - 1)) +@@ -218,6 +221,7 @@ + mi.c_format.simmediate = store_offset; + + emit_instruction(mi); ++#endif + } + + static void __build_store_reg(int reg) +diff -urN linux.old/include/asm-mips/stackframe.h linux.dev/include/asm-mips/stackframe.h +--- linux.old/include/asm-mips/stackframe.h 2002-11-29 00:53:15.000000000 +0100 ++++ linux.dev/include/asm-mips/stackframe.h 2005-05-28 21:53:03.000000000 +0200 +@@ -172,6 +172,46 @@ + rfe; \ + .set pop + ++#elif defined(CONFIG_BCM4710) || defined(CONFIG_BCM4704) ++ ++#define RESTORE_SOME \ ++ .set push; \ ++ .set reorder; \ ++ mfc0 t0, CP0_STATUS; \ ++ .set pop; \ ++ ori t0, 0x1f; \ ++ xori t0, 0x1f; \ ++ mtc0 t0, CP0_STATUS; \ ++ li v1, 0xff00; \ ++ and t0, v1; \ ++ lw v0, PT_STATUS(sp); \ ++ nor v1, $0, v1; \ ++ and v0, v1; \ ++ or v0, t0; \ ++ ori v1, v0, ST0_IE; \ ++ xori v1, v1, ST0_IE; \ ++ mtc0 v1, CP0_STATUS; \ ++ mtc0 v0, CP0_STATUS; \ ++ lw v1, PT_EPC(sp); \ ++ mtc0 v1, CP0_EPC; \ ++ lw $31, PT_R31(sp); \ ++ lw $28, PT_R28(sp); \ ++ lw $25, PT_R25(sp); \ ++ lw $7, PT_R7(sp); \ ++ lw $6, PT_R6(sp); \ ++ lw $5, PT_R5(sp); \ ++ lw $4, PT_R4(sp); \ ++ lw $3, PT_R3(sp); \ ++ lw $2, PT_R2(sp) ++ ++#define RESTORE_SP_AND_RET \ ++ lw sp, PT_R29(sp); \ ++ nop; \ ++ nop; \ ++ .set mips3; \ ++ eret; \ ++ .set mips0 ++ + #else + + #define RESTORE_SOME \ +diff -urN linux.old/arch/mips/mm/tlbex-r4k.S linux.dev/arch/mips/mm/tlbex-r4k.S +--- linux.old/arch/mips/mm/tlbex-r4k.S 2005-05-28 17:42:03.000000000 +0200 ++++ linux.dev/arch/mips/mm/tlbex-r4k.S 2005-05-29 15:04:43.000000000 +0200 +@@ -168,6 +168,9 @@ + .set noat + LEAF(except_vec0_r4000) + .set mips3 ++#ifdef CONFIG_BCM4704 ++ nop ++#endif + GET_PGD(k0, k1) # get pgd pointer + mfc0 k0, CP0_BADVADDR # Get faulting address + srl k0, k0, _PGDIR_SHIFT # get pgd only bits +diff -urN linux.old/arch/mips/kernel/entry.S linux.dev/arch/mips/kernel/entry.S +--- linux.old/arch/mips/kernel/entry.S 2003-08-25 13:44:40.000000000 +0200 ++++ linux.dev/arch/mips/kernel/entry.S 2005-06-01 20:10:36.000000000 +0200 +@@ -100,6 +100,10 @@ + * and R4400 SC and MC versions. + */ + NESTED(except_vec3_generic, 0, sp) ++#ifdef CONFIG_BCM4710 ++ nop ++ nop ++#endif + #if R5432_CP0_INTERRUPT_WAR + mfc0 k0, CP0_INDEX + #endif +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 2005-06-01 18:42:44.000000000 +0200 ++++ linux.dev/arch/mips/mm/c-r4k.c 2005-06-01 18:49:07.000000000 +0200 +@@ -14,6 +14,12 @@ + #include + #include + ++#ifdef CONFIG_BCM4710 ++#include "../bcm947xx/include/typedefs.h" ++#include "../bcm947xx/include/sbconfig.h" ++#include ++#endif ++ + #include + #include + #include +@@ -390,6 +396,11 @@ + addr = start & ~(dc_lsize - 1); + aend = (end - 1) & ~(dc_lsize - 1); + ++#ifdef CONFIG_BCM4710 ++ BCM4710_FILL_TLB(addr); ++ BCM4710_FILL_TLB(aend); ++#endif ++ + while (1) { + /* Hit_Writeback_Inv_D */ + protected_writeback_dcache_line(addr); +@@ -405,6 +416,10 @@ + else { + addr = start & ~(ic_lsize - 1); + aend = (end - 1) & ~(ic_lsize - 1); ++#ifdef CONFIG_BCM4710 ++ BCM4710_FILL_TLB(addr); ++ BCM4710_FILL_TLB(aend); ++#endif + while (1) { + /* Hit_Invalidate_I */ + protected_flush_icache_line(addr); +@@ -487,6 +502,10 @@ + + a = addr & ~(sc_lsize - 1); + end = (addr + size - 1) & ~(sc_lsize - 1); ++#ifdef CONFIG_BCM4710 ++ BCM4710_FILL_TLB(a); ++ BCM4710_FILL_TLB(end); ++#endif + while (1) { + flush_scache_line(a); /* Hit_Writeback_Inv_SD */ + if (a == end) +@@ -509,6 +528,10 @@ + R4600_HIT_CACHEOP_WAR_IMPL; + a = addr & ~(dc_lsize - 1); + end = (addr + size - 1) & ~(dc_lsize - 1); ++#ifdef CONFIG_BCM4710 ++ BCM4710_FILL_TLB(a); ++ BCM4710_FILL_TLB(end); ++#endif + while (1) { + flush_dcache_line(a); /* Hit_Writeback_Inv_D */ + if (a == end) +@@ -537,6 +560,10 @@ + + a = addr & ~(sc_lsize - 1); + end = (addr + size - 1) & ~(sc_lsize - 1); ++#ifdef CONFIG_BCM4710 ++ BCM4710_FILL_TLB(a); ++ BCM4710_FILL_TLB(end); ++#endif + while (1) { + flush_scache_line(a); /* Hit_Writeback_Inv_SD */ + if (a == end) +@@ -576,6 +603,10 @@ + unsigned long ic_lsize = current_cpu_data.icache.linesz; + unsigned long dc_lsize = current_cpu_data.dcache.linesz; + ++#ifdef CONFIG_BCM4710 ++ BCM4710_PROTECTED_FILL_TLB(addr); ++ BCM4710_PROTECTED_FILL_TLB(addr + 4); ++#endif + R4600_HIT_CACHEOP_WAR_IMPL; + protected_writeback_dcache_line(addr & ~(dc_lsize - 1)); + protected_flush_icache_line(addr & ~(ic_lsize - 1)); +diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kcache.h +--- linux.old/include/asm-mips/r4kcache.h 2005-06-01 18:42:43.000000000 +0200 ++++ linux.dev/include/asm-mips/r4kcache.h 2005-06-01 19:07:11.000000000 +0200 +@@ -15,6 +15,25 @@ + #include + #include + ++#ifdef CONFIG_BCM4710 ++#define BCM4710_DUMMY_RREG() (((sbconfig_t *)(KSEG1ADDR(SB_ENUM_BASE + SBCONFIGOFF)))->sbimstate) ++ ++#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)); }) ++ ++#define cache_op(op,addr) \ ++ BCM4710_DUMMY_RREG(); \ ++ __asm__ __volatile__( \ ++ " .set noreorder \n" \ ++ " .set mips3\n\t \n" \ ++ " cache %0, %1 \n" \ ++ " .set mips0 \n" \ ++ " .set reorder" \ ++ : \ ++ : "i" (op), "m" (*(unsigned char *)(addr))) ++ ++#else ++ + #define cache_op(op,addr) \ + __asm__ __volatile__( \ + " .set noreorder \n" \ +@@ -24,6 +43,8 @@ + " .set reorder" \ + : \ + : "i" (op), "m" (*(unsigned char *)(addr))) ++#endif ++ + + static inline void flush_icache_line_indexed(unsigned long addr) + { +@@ -32,6 +53,9 @@ + + static inline void flush_dcache_line_indexed(unsigned long addr) + { ++#ifdef CONFIG_BCM4710 ++ BCM4710_DUMMY_RREG(); ++#endif + cache_op(Index_Writeback_Inv_D, addr); + } + +@@ -47,6 +71,10 @@ + + static inline void flush_dcache_line(unsigned long addr) + { ++ ++#ifdef CONFIG_BCM4710 ++ BCM4710_DUMMY_RREG(); ++#endif + cache_op(Hit_Writeback_Inv_D, addr); + } + +@@ -91,6 +119,9 @@ + */ + static inline void protected_writeback_dcache_line(unsigned long addr) + { ++#ifdef CONFIG_BCM4710 ++ BCM4710_DUMMY_RREG(); ++#endif + __asm__ __volatile__( + ".set noreorder\n\t" + ".set mips3\n" +@@ -148,8 +179,12 @@ + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) +- for (addr = start; addr < end; addr += 0x200) ++ for (addr = start; addr < end; addr += 0x200) { ++#ifdef CONFIG_BCM4710 ++ BCM4710_DUMMY_RREG(); ++#endif + cache16_unroll32(addr|ws,Index_Writeback_Inv_D); ++ } + } + + static inline void blast_dcache16_page(unsigned long page) +@@ -158,6 +193,9 @@ + unsigned long end = start + PAGE_SIZE; + + do { ++#ifdef CONFIG_BCM4710 ++ BCM4710_DUMMY_RREG(); ++#endif + cache16_unroll32(start,Hit_Writeback_Inv_D); + start += 0x200; + } while (start < end); +@@ -173,8 +211,12 @@ + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) +- for (addr = start; addr < end; addr += 0x200) ++ for (addr = start; addr < end; addr += 0x200) { ++#ifdef CONFIG_BCM4710 ++ BCM4710_DUMMY_RREG(); ++#endif + cache16_unroll32(addr|ws,Index_Writeback_Inv_D); ++ } + } + + static inline void blast_icache16(void) +@@ -196,7 +238,13 @@ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + ++#ifdef CONFIG_BCM4710 ++ BCM4710_FILL_TLB(start); ++#endif + do { ++#ifdef CONFIG_BCM4710 ++ BCM4710_DUMMY_RREG(); ++#endif + cache16_unroll32(start,Hit_Invalidate_I); + start += 0x200; + } while (start < end); +@@ -291,8 +339,12 @@ + unsigned long ws, addr; + + for (ws = 0; ws < ws_end; ws += ws_inc) +- for (addr = start; addr < end; addr += 0x400) ++ for (addr = start; addr < end; addr += 0x400) { ++#ifdef CONFIG_BCM4710 ++ BCM4710_DUMMY_RREG(); ++#endif + cache32_unroll32(addr|ws,Index_Writeback_Inv_D); ++ } + } + + static inline void blast_dcache32_page(unsigned long page) +@@ -300,7 +352,13 @@ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + ++#ifdef CONFIG_BCM4710 ++ __asm__ __volatile__("nop;nop;nop;nop"); ++#endif + do { ++#ifdef CONFIG_BCM4710 ++ BCM4710_DUMMY_RREG(); ++#endif + cache32_unroll32(start,Hit_Writeback_Inv_D); + start += 0x400; + } while (start < end); +@@ -339,6 +397,9 @@ + unsigned long start = page; + unsigned long end = start + PAGE_SIZE; + ++#ifdef CONFIG_BCM4710 ++ BCM4710_FILL_TLB(start); ++#endif + do { + cache32_unroll32(start,Hit_Invalidate_I); + start += 0x400; +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 2005-06-01 18:49:07.000000000 +0200 ++++ linux.dev/arch/mips/mm/c-r4k.c 2005-06-03 12:11:13.000000000 +0200 +@@ -51,6 +51,7 @@ + #define cpu_is_r4600_v1_x() ((read_c0_prid() & 0xfffffff0) == 0x2010) + #define cpu_is_r4600_v2_x() ((read_c0_prid() & 0xfffffff0) == 0x2020) + ++#ifndef CONFIG_BCM4710 + #define R4600_HIT_CACHEOP_WAR_IMPL \ + do { \ + if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) \ +@@ -58,11 +59,17 @@ + if (R4600_V1_HIT_CACHEOP_WAR) \ + __asm__ __volatile__("nop;nop;nop;nop"); \ + } while (0) ++#else ++#define R4600_HIT_CACHEOP_WAR_IMPL ++#endif + + static void (* r4k_blast_dcache_page)(unsigned long addr); + + static inline void r4k_blast_dcache_page_dc32(unsigned long addr) + { ++#ifdef CONFIG_BCM4710 ++ BCM4710_FILL_TLB(addr); ++#endif + R4600_HIT_CACHEOP_WAR_IMPL; + blast_dcache32_page(addr); + } +@@ -581,6 +588,10 @@ + R4600_HIT_CACHEOP_WAR_IMPL; + a = addr & ~(dc_lsize - 1); + end = (addr + size - 1) & ~(dc_lsize - 1); ++#ifdef CONFIG_BCM4710 ++ BCM4710_FILL_TLB(a); ++ BCM4710_FILL_TLB(end); ++#endif + while (1) { + flush_dcache_line(a); /* Hit_Writeback_Inv_D */ + if (a == end) +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 2005-06-11 19:39:17.000000000 +0200 ++++ linux.dev/arch/mips/mm/c-r4k.c 2005-06-11 19:54:48.000000000 +0200 +@@ -1083,6 +1083,19 @@ + static inline void coherency_setup(void) + { + change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT); ++ ++#if defined(CONFIG_BCM4310) || defined(CONFIG_BCM4704) || defined(CONFIG_BCM5365) ++ if (BCM330X(current_cpu_data.processor_id)) { ++ uint32 cm; ++ ++ cm = read_c0_diag(); ++ /* Enable icache */ ++ cm |= (1 << 31); ++ /* Enable dcache */ ++ cm |= (1 << 30); ++ write_c0_diag(cm); ++ } ++#endif + + /* + * c0_status.cu=0 specifies that updates by the sc instruction use +@@ -1104,6 +1117,42 @@ + + } + ++#ifdef CONFIG_BCM4704 ++static void __init mips32_icache_fill(unsigned long addr, uint nbytes) ++{ ++ unsigned long ic_lsize = current_cpu_data.icache.linesz; ++ int i; ++ for (i = 0; i < nbytes; i += ic_lsize) ++ fill_icache_line((addr + i)); ++} ++ ++/* ++ * This must be run from the cache on 4704A0 ++ * so there are no mips core BIU ops in progress ++ * when the PFC is enabled. ++ */ ++#define PFC_CR0 0xff400000 /* control reg 0 */ ++#define PFC_CR1 0xff400004 /* control reg 1 */ ++static void __init enable_pfc(u32 mode) ++{ ++ /* write range */ ++ *(volatile u32 *)PFC_CR1 = 0xffff0000; ++ ++ /* enable */ ++ *(volatile u32 *)PFC_CR0 = mode; ++} ++ ++void check_enable_mips_pfc(int val) ++{ ++ /* enable prefetch cache */ ++ if (BCM330X(current_cpu_data.processor_id) ++ && (read_c0_diag() & (1 << 29))) { ++ mips32_icache_fill((unsigned long) &enable_pfc, 64); ++ enable_pfc(val); ++ } ++} ++#endif ++ + void __init ld_mmu_r4xx0(void) + { + extern void build_clear_page(void); +@@ -1159,47 +1208,9 @@ + + build_clear_page(); + build_copy_page(); +-} +- +-#ifdef CONFIG_BCM4704 +-static void __init mips32_icache_fill(unsigned long addr, uint nbytes) +-{ +- unsigned long ic_lsize = current_cpu_data.icache.linesz; +- int i; +- for (i = 0; i < nbytes; i += ic_lsize) +- fill_icache_line((addr + i)); +-} +- +-/* +- * This must be run from the cache on 4704A0 +- * so there are no mips core BIU ops in progress +- * when the PFC is enabled. +- */ +-#define PFC_CR0 0xff400000 /* control reg 0 */ +-#define PFC_CR1 0xff400004 /* control reg 1 */ +-static void __init enable_pfc(u32 mode) +-{ +- /* write range */ +- *(volatile u32 *)PFC_CR1 = 0xffff0000; +- +- /* enable */ +- *(volatile u32 *)PFC_CR0 = mode; +-} +-#endif +- +- +-void check_enable_mips_pfc(int val) +-{ +- ++ + #ifdef CONFIG_BCM4704 +- struct cpuinfo_mips *c = ¤t_cpu_data; +- +- /* enable prefetch cache */ +- if (((c->processor_id & (PRID_COMP_MASK | PRID_IMP_MASK)) == PRID_IMP_BCM3302) +- && (read_c0_diag() & (1 << 29))) { +- mips32_icache_fill((unsigned long) &enable_pfc, 64); +- enable_pfc(val); +- } ++ check_enable_mips_pfc(0x15); + #endif + } + diff --git a/openwrt/target/linux/linux-2.4/patches/brcm/003-bcm47xx_workarounds.patch b/openwrt/target/linux/linux-2.4/patches/brcm/003-bcm47xx_workarounds.patch deleted file mode 100644 index 73afd60c1..000000000 --- a/openwrt/target/linux/linux-2.4/patches/brcm/003-bcm47xx_workarounds.patch +++ /dev/null @@ -1,122 +0,0 @@ -diff -urN linux.old/arch/mips/mm/tlbex-mips32.S linux.dev/arch/mips/mm/tlbex-mips32.S ---- linux.old/arch/mips/mm/tlbex-mips32.S 2005-05-28 17:42:03.000000000 +0200 -+++ linux.dev/arch/mips/mm/tlbex-mips32.S 2005-05-28 21:48:55.000000000 +0200 -@@ -90,6 +90,9 @@ - .set noat - LEAF(except_vec0_r4000) - .set mips3 -+#ifdef CONFIG_BCM4704 -+ nop -+#endif - #ifdef CONFIG_SMP - mfc0 k1, CP0_CONTEXT - la k0, pgd_current -diff -urN linux.old/arch/mips/mm/pg-r4k.c linux.dev/arch/mips/mm/pg-r4k.c ---- linux.old/arch/mips/mm/pg-r4k.c 2005-01-19 15:09:29.000000000 +0100 -+++ linux.dev/arch/mips/mm/pg-r4k.c 2005-05-28 21:57:52.000000000 +0200 -@@ -180,6 +180,7 @@ - - static inline void build_cdex_s(void) - { -+#if !defined(CONFIG_BCM4704) && !defined(CONFIG_BCM4710) - union mips_instruction mi; - - if ((store_offset & (cpu_scache_line_size() - 1))) -@@ -192,10 +193,12 @@ - mi.c_format.simmediate = store_offset; - - emit_instruction(mi); -+#endif - } - - static inline void build_cdex_p(void) - { -+#if !defined(CONFIG_BCM4704) && !defined(CONFIG_BCM4710) - union mips_instruction mi; - - if (store_offset & (cpu_dcache_line_size() - 1)) -@@ -218,6 +221,7 @@ - mi.c_format.simmediate = store_offset; - - emit_instruction(mi); -+#endif - } - - static void __build_store_reg(int reg) -diff -urN linux.old/include/asm-mips/stackframe.h linux.dev/include/asm-mips/stackframe.h ---- linux.old/include/asm-mips/stackframe.h 2002-11-29 00:53:15.000000000 +0100 -+++ linux.dev/include/asm-mips/stackframe.h 2005-05-28 21:53:03.000000000 +0200 -@@ -172,6 +172,46 @@ - rfe; \ - .set pop - -+#elif defined(CONFIG_BCM4710) || defined(CONFIG_BCM4704) -+ -+#define RESTORE_SOME \ -+ .set push; \ -+ .set reorder; \ -+ mfc0 t0, CP0_STATUS; \ -+ .set pop; \ -+ ori t0, 0x1f; \ -+ xori t0, 0x1f; \ -+ mtc0 t0, CP0_STATUS; \ -+ li v1, 0xff00; \ -+ and t0, v1; \ -+ lw v0, PT_STATUS(sp); \ -+ nor v1, $0, v1; \ -+ and v0, v1; \ -+ or v0, t0; \ -+ ori v1, v0, ST0_IE; \ -+ xori v1, v1, ST0_IE; \ -+ mtc0 v1, CP0_STATUS; \ -+ mtc0 v0, CP0_STATUS; \ -+ lw v1, PT_EPC(sp); \ -+ mtc0 v1, CP0_EPC; \ -+ lw $31, PT_R31(sp); \ -+ lw $28, PT_R28(sp); \ -+ lw $25, PT_R25(sp); \ -+ lw $7, PT_R7(sp); \ -+ lw $6, PT_R6(sp); \ -+ lw $5, PT_R5(sp); \ -+ lw $4, PT_R4(sp); \ -+ lw $3, PT_R3(sp); \ -+ lw $2, PT_R2(sp) -+ -+#define RESTORE_SP_AND_RET \ -+ lw sp, PT_R29(sp); \ -+ nop; \ -+ nop; \ -+ .set mips3; \ -+ eret; \ -+ .set mips0 -+ - #else - - #define RESTORE_SOME \ -diff -urN linux.old/arch/mips/mm/tlbex-r4k.S linux.dev/arch/mips/mm/tlbex-r4k.S ---- linux.old/arch/mips/mm/tlbex-r4k.S 2005-05-28 17:42:03.000000000 +0200 -+++ linux.dev/arch/mips/mm/tlbex-r4k.S 2005-05-29 15:04:43.000000000 +0200 -@@ -168,6 +168,9 @@ - .set noat - LEAF(except_vec0_r4000) - .set mips3 -+#ifdef CONFIG_BCM4704 -+ nop -+#endif - GET_PGD(k0, k1) # get pgd pointer - mfc0 k0, CP0_BADVADDR # Get faulting address - srl k0, k0, _PGDIR_SHIFT # get pgd only bits -diff -urN linux.old/arch/mips/kernel/entry.S linux.dev/arch/mips/kernel/entry.S ---- linux.old/arch/mips/kernel/entry.S 2003-08-25 13:44:40.000000000 +0200 -+++ linux.dev/arch/mips/kernel/entry.S 2005-06-01 20:10:36.000000000 +0200 -@@ -100,6 +100,10 @@ - * and R4400 SC and MC versions. - */ - NESTED(except_vec3_generic, 0, sp) -+#ifdef CONFIG_BCM4710 -+ nop -+ nop -+#endif - #if R5432_CP0_INTERRUPT_WAR - mfc0 k0, CP0_INDEX - #endif diff --git a/openwrt/target/linux/linux-2.4/patches/brcm/004-bcm94710_mmu.patch b/openwrt/target/linux/linux-2.4/patches/brcm/004-bcm94710_mmu.patch deleted file mode 100644 index 515109237..000000000 --- a/openwrt/target/linux/linux-2.4/patches/brcm/004-bcm94710_mmu.patch +++ /dev/null @@ -1,282 +0,0 @@ -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 2005-06-01 18:42:44.000000000 +0200 -+++ linux.dev/arch/mips/mm/c-r4k.c 2005-06-01 18:49:07.000000000 +0200 -@@ -14,6 +14,12 @@ - #include - #include - -+#ifdef CONFIG_BCM4710 -+#include "../bcm947xx/include/typedefs.h" -+#include "../bcm947xx/include/sbconfig.h" -+#include -+#endif -+ - #include - #include - #include -@@ -390,6 +396,11 @@ - addr = start & ~(dc_lsize - 1); - aend = (end - 1) & ~(dc_lsize - 1); - -+#ifdef CONFIG_BCM4710 -+ BCM4710_FILL_TLB(addr); -+ BCM4710_FILL_TLB(aend); -+#endif -+ - while (1) { - /* Hit_Writeback_Inv_D */ - protected_writeback_dcache_line(addr); -@@ -405,6 +416,10 @@ - else { - addr = start & ~(ic_lsize - 1); - aend = (end - 1) & ~(ic_lsize - 1); -+#ifdef CONFIG_BCM4710 -+ BCM4710_FILL_TLB(addr); -+ BCM4710_FILL_TLB(aend); -+#endif - while (1) { - /* Hit_Invalidate_I */ - protected_flush_icache_line(addr); -@@ -487,6 +502,10 @@ - - a = addr & ~(sc_lsize - 1); - end = (addr + size - 1) & ~(sc_lsize - 1); -+#ifdef CONFIG_BCM4710 -+ BCM4710_FILL_TLB(a); -+ BCM4710_FILL_TLB(end); -+#endif - while (1) { - flush_scache_line(a); /* Hit_Writeback_Inv_SD */ - if (a == end) -@@ -509,6 +528,10 @@ - R4600_HIT_CACHEOP_WAR_IMPL; - a = addr & ~(dc_lsize - 1); - end = (addr + size - 1) & ~(dc_lsize - 1); -+#ifdef CONFIG_BCM4710 -+ BCM4710_FILL_TLB(a); -+ BCM4710_FILL_TLB(end); -+#endif - while (1) { - flush_dcache_line(a); /* Hit_Writeback_Inv_D */ - if (a == end) -@@ -537,6 +560,10 @@ - - a = addr & ~(sc_lsize - 1); - end = (addr + size - 1) & ~(sc_lsize - 1); -+#ifdef CONFIG_BCM4710 -+ BCM4710_FILL_TLB(a); -+ BCM4710_FILL_TLB(end); -+#endif - while (1) { - flush_scache_line(a); /* Hit_Writeback_Inv_SD */ - if (a == end) -@@ -576,6 +603,10 @@ - unsigned long ic_lsize = current_cpu_data.icache.linesz; - unsigned long dc_lsize = current_cpu_data.dcache.linesz; - -+#ifdef CONFIG_BCM4710 -+ BCM4710_PROTECTED_FILL_TLB(addr); -+ BCM4710_PROTECTED_FILL_TLB(addr + 4); -+#endif - R4600_HIT_CACHEOP_WAR_IMPL; - protected_writeback_dcache_line(addr & ~(dc_lsize - 1)); - protected_flush_icache_line(addr & ~(ic_lsize - 1)); -diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kcache.h ---- linux.old/include/asm-mips/r4kcache.h 2005-06-01 18:42:43.000000000 +0200 -+++ linux.dev/include/asm-mips/r4kcache.h 2005-06-01 19:07:11.000000000 +0200 -@@ -15,6 +15,25 @@ - #include - #include - -+#ifdef CONFIG_BCM4710 -+#define BCM4710_DUMMY_RREG() (((sbconfig_t *)(KSEG1ADDR(SB_ENUM_BASE + SBCONFIGOFF)))->sbimstate) -+ -+#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)); }) -+ -+#define cache_op(op,addr) \ -+ BCM4710_DUMMY_RREG(); \ -+ __asm__ __volatile__( \ -+ " .set noreorder \n" \ -+ " .set mips3\n\t \n" \ -+ " cache %0, %1 \n" \ -+ " .set mips0 \n" \ -+ " .set reorder" \ -+ : \ -+ : "i" (op), "m" (*(unsigned char *)(addr))) -+ -+#else -+ - #define cache_op(op,addr) \ - __asm__ __volatile__( \ - " .set noreorder \n" \ -@@ -24,6 +43,8 @@ - " .set reorder" \ - : \ - : "i" (op), "m" (*(unsigned char *)(addr))) -+#endif -+ - - static inline void flush_icache_line_indexed(unsigned long addr) - { -@@ -32,6 +53,9 @@ - - static inline void flush_dcache_line_indexed(unsigned long addr) - { -+#ifdef CONFIG_BCM4710 -+ BCM4710_DUMMY_RREG(); -+#endif - cache_op(Index_Writeback_Inv_D, addr); - } - -@@ -47,6 +71,10 @@ - - static inline void flush_dcache_line(unsigned long addr) - { -+ -+#ifdef CONFIG_BCM4710 -+ BCM4710_DUMMY_RREG(); -+#endif - cache_op(Hit_Writeback_Inv_D, addr); - } - -@@ -91,6 +119,9 @@ - */ - static inline void protected_writeback_dcache_line(unsigned long addr) - { -+#ifdef CONFIG_BCM4710 -+ BCM4710_DUMMY_RREG(); -+#endif - __asm__ __volatile__( - ".set noreorder\n\t" - ".set mips3\n" -@@ -148,8 +179,12 @@ - unsigned long ws, addr; - - for (ws = 0; ws < ws_end; ws += ws_inc) -- for (addr = start; addr < end; addr += 0x200) -+ for (addr = start; addr < end; addr += 0x200) { -+#ifdef CONFIG_BCM4710 -+ BCM4710_DUMMY_RREG(); -+#endif - cache16_unroll32(addr|ws,Index_Writeback_Inv_D); -+ } - } - - static inline void blast_dcache16_page(unsigned long page) -@@ -158,6 +193,9 @@ - unsigned long end = start + PAGE_SIZE; - - do { -+#ifdef CONFIG_BCM4710 -+ BCM4710_DUMMY_RREG(); -+#endif - cache16_unroll32(start,Hit_Writeback_Inv_D); - start += 0x200; - } while (start < end); -@@ -173,8 +211,12 @@ - unsigned long ws, addr; - - for (ws = 0; ws < ws_end; ws += ws_inc) -- for (addr = start; addr < end; addr += 0x200) -+ for (addr = start; addr < end; addr += 0x200) { -+#ifdef CONFIG_BCM4710 -+ BCM4710_DUMMY_RREG(); -+#endif - cache16_unroll32(addr|ws,Index_Writeback_Inv_D); -+ } - } - - static inline void blast_icache16(void) -@@ -196,7 +238,13 @@ - unsigned long start = page; - unsigned long end = start + PAGE_SIZE; - -+#ifdef CONFIG_BCM4710 -+ BCM4710_FILL_TLB(start); -+#endif - do { -+#ifdef CONFIG_BCM4710 -+ BCM4710_DUMMY_RREG(); -+#endif - cache16_unroll32(start,Hit_Invalidate_I); - start += 0x200; - } while (start < end); -@@ -291,8 +339,12 @@ - unsigned long ws, addr; - - for (ws = 0; ws < ws_end; ws += ws_inc) -- for (addr = start; addr < end; addr += 0x400) -+ for (addr = start; addr < end; addr += 0x400) { -+#ifdef CONFIG_BCM4710 -+ BCM4710_DUMMY_RREG(); -+#endif - cache32_unroll32(addr|ws,Index_Writeback_Inv_D); -+ } - } - - static inline void blast_dcache32_page(unsigned long page) -@@ -300,7 +352,13 @@ - unsigned long start = page; - unsigned long end = start + PAGE_SIZE; - -+#ifdef CONFIG_BCM4710 -+ __asm__ __volatile__("nop;nop;nop;nop"); -+#endif - do { -+#ifdef CONFIG_BCM4710 -+ BCM4710_DUMMY_RREG(); -+#endif - cache32_unroll32(start,Hit_Writeback_Inv_D); - start += 0x400; - } while (start < end); -@@ -339,6 +397,9 @@ - unsigned long start = page; - unsigned long end = start + PAGE_SIZE; - -+#ifdef CONFIG_BCM4710 -+ BCM4710_FILL_TLB(start); -+#endif - do { - cache32_unroll32(start,Hit_Invalidate_I); - start += 0x400; -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 2005-06-01 18:49:07.000000000 +0200 -+++ linux.dev/arch/mips/mm/c-r4k.c 2005-06-03 12:11:13.000000000 +0200 -@@ -51,6 +51,7 @@ - #define cpu_is_r4600_v1_x() ((read_c0_prid() & 0xfffffff0) == 0x2010) - #define cpu_is_r4600_v2_x() ((read_c0_prid() & 0xfffffff0) == 0x2020) - -+#ifndef CONFIG_BCM4710 - #define R4600_HIT_CACHEOP_WAR_IMPL \ - do { \ - if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) \ -@@ -58,11 +59,17 @@ - if (R4600_V1_HIT_CACHEOP_WAR) \ - __asm__ __volatile__("nop;nop;nop;nop"); \ - } while (0) -+#else -+#define R4600_HIT_CACHEOP_WAR_IMPL -+#endif - - static void (* r4k_blast_dcache_page)(unsigned long addr); - - static inline void r4k_blast_dcache_page_dc32(unsigned long addr) - { -+#ifdef CONFIG_BCM4710 -+ BCM4710_FILL_TLB(addr); -+#endif - R4600_HIT_CACHEOP_WAR_IMPL; - blast_dcache32_page(addr); - } -@@ -581,6 +588,10 @@ - R4600_HIT_CACHEOP_WAR_IMPL; - a = addr & ~(dc_lsize - 1); - end = (addr + size - 1) & ~(dc_lsize - 1); -+#ifdef CONFIG_BCM4710 -+ BCM4710_FILL_TLB(a); -+ BCM4710_FILL_TLB(end); -+#endif - while (1) { - flush_dcache_line(a); /* Hit_Writeback_Inv_D */ - if (a == end) -- cgit v1.2.3