mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-29 04:51:44 +02:00
fix bcm47xx cache fixes
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@1224 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
parent
d4054eb855
commit
38b0803dfa
@ -1,3 +1,125 @@
|
|||||||
|
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
|
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.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
|
+++ linux.dev/arch/mips/mm/c-r4k.c 2005-06-01 18:49:07.000000000 +0200
|
||||||
@ -280,3 +402,119 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
|
|||||||
while (1) {
|
while (1) {
|
||||||
flush_dcache_line(a); /* Hit_Writeback_Inv_D */
|
flush_dcache_line(a); /* Hit_Writeback_Inv_D */
|
||||||
if (a == end)
|
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
|
||||||
|
}
|
||||||
|
|
||||||
@ -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
|
|
||||||
Loading…
Reference in New Issue
Block a user