summaryrefslogtreecommitdiff
path: root/arch/mips/mm
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/mm')
-rw-r--r--arch/mips/mm/Makefile2
-rw-r--r--arch/mips/mm/cerr-sb1.c4
-rw-r--r--arch/mips/mm/dma-default.c3
-rw-r--r--arch/mips/mm/fault.c15
-rw-r--r--arch/mips/mm/page.c2
-rw-r--r--arch/mips/mm/tlb-funcs.S37
-rw-r--r--arch/mips/mm/tlbex.c183
7 files changed, 168 insertions, 78 deletions
diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile
index e87aae1..7f4f93a 100644
--- a/arch/mips/mm/Makefile
+++ b/arch/mips/mm/Makefile
@@ -4,7 +4,7 @@
obj-y += cache.o dma-default.o extable.o fault.o \
gup.o init.o mmap.o page.o page-funcs.o \
- tlbex.o tlbex-fault.o uasm-mips.o
+ tlbex.o tlbex-fault.o tlb-funcs.o uasm-mips.o
obj-$(CONFIG_32BIT) += ioremap.o pgtable-32.o
obj-$(CONFIG_64BIT) += pgtable-64.o
diff --git a/arch/mips/mm/cerr-sb1.c b/arch/mips/mm/cerr-sb1.c
index 576add3..ee5c1ff 100644
--- a/arch/mips/mm/cerr-sb1.c
+++ b/arch/mips/mm/cerr-sb1.c
@@ -182,11 +182,7 @@ asmlinkage void sb1_cache_error(void)
#ifdef CONFIG_SIBYTE_BW_TRACE
/* Freeze the trace buffer now */
-#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
- csr_out32(M_BCM1480_SCD_TRACE_CFG_FREEZE, IOADDR(A_SCD_TRACE_CFG));
-#else
csr_out32(M_SCD_TRACE_CFG_FREEZE, IOADDR(A_SCD_TRACE_CFG));
-#endif
printk("Trace buffer frozen\n");
#endif
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index caf92ec..aaccf1c 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -246,6 +246,9 @@ static int mips_dma_map_sg(struct device *dev, struct scatterlist *sg,
if (!plat_device_is_coherent(dev))
__dma_sync(sg_page(sg), sg->offset, sg->length,
direction);
+#ifdef CONFIG_NEED_SG_DMA_LENGTH
+ sg->dma_length = sg->length;
+#endif
sg->dma_address = plat_map_dma_mem_page(dev, sg_page(sg)) +
sg->offset;
}
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 0fead53..85df1cd 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -5,6 +5,7 @@
*
* Copyright (C) 1995 - 2000 by Ralf Baechle
*/
+#include <linux/context_tracking.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
@@ -32,8 +33,8 @@
* and the problem, and then passes it off to one of the appropriate
* routines.
*/
-asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, unsigned long write,
- unsigned long address)
+static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
+ unsigned long address)
{
struct vm_area_struct * vma = NULL;
struct task_struct *tsk = current;
@@ -312,3 +313,13 @@ vmalloc_fault:
}
#endif
}
+
+asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
+ unsigned long write, unsigned long address)
+{
+ enum ctx_state prev_state;
+
+ prev_state = exception_enter();
+ __do_page_fault(regs, write, address);
+ exception_exit(prev_state);
+}
diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c
index 4eb8dcf..2c0bd58 100644
--- a/arch/mips/mm/page.c
+++ b/arch/mips/mm/page.c
@@ -232,7 +232,7 @@ static inline void __cpuinit build_clear_pref(u32 **buf, int off)
uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
}
- }
+ }
}
extern u32 __clear_page_start;
diff --git a/arch/mips/mm/tlb-funcs.S b/arch/mips/mm/tlb-funcs.S
new file mode 100644
index 0000000..30a494d
--- /dev/null
+++ b/arch/mips/mm/tlb-funcs.S
@@ -0,0 +1,37 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Micro-assembler generated tlb handler functions.
+ *
+ * Copyright (C) 2013 Broadcom Corporation.
+ *
+ * Based on mm/page-funcs.c
+ * Copyright (C) 2012 MIPS Technologies, Inc.
+ * Copyright (C) 2012 Ralf Baechle <ralf@linux-mips.org>
+ */
+#include <asm/asm.h>
+#include <asm/regdef.h>
+
+#define FASTPATH_SIZE 128
+
+LEAF(tlbmiss_handler_setup_pgd)
+ .space 16 * 4
+END(tlbmiss_handler_setup_pgd)
+EXPORT(tlbmiss_handler_setup_pgd_end)
+
+LEAF(handle_tlbm)
+ .space FASTPATH_SIZE * 4
+END(handle_tlbm)
+EXPORT(handle_tlbm_end)
+
+LEAF(handle_tlbs)
+ .space FASTPATH_SIZE * 4
+END(handle_tlbs)
+EXPORT(handle_tlbs_end)
+
+LEAF(handle_tlbl)
+ .space FASTPATH_SIZE * 4
+END(handle_tlbl)
+EXPORT(handle_tlbl_end)
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index afeef93..9ab0f90 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -305,6 +305,17 @@ static int check_for_high_segbits __cpuinitdata;
static unsigned int kscratch_used_mask __cpuinitdata;
+static inline int __maybe_unused c0_kscratch(void)
+{
+ switch (current_cpu_type()) {
+ case CPU_XLP:
+ case CPU_XLR:
+ return 22;
+ default:
+ return 31;
+ }
+}
+
static int __cpuinit allocate_kscratch(void)
{
int r;
@@ -334,9 +345,9 @@ static struct work_registers __cpuinit build_get_work_registers(u32 **p)
int smp_processor_id_sel;
int smp_processor_id_shift;
- if (scratch_reg > 0) {
+ if (scratch_reg >= 0) {
/* Save in CPU local C0_KScratch? */
- UASM_i_MTC0(p, 1, 31, scratch_reg);
+ UASM_i_MTC0(p, 1, c0_kscratch(), scratch_reg);
r.r1 = K0;
r.r2 = K1;
r.r3 = 1;
@@ -384,8 +395,8 @@ static struct work_registers __cpuinit build_get_work_registers(u32 **p)
static void __cpuinit build_restore_work_registers(u32 **p)
{
- if (scratch_reg > 0) {
- UASM_i_MFC0(p, 1, 31, scratch_reg);
+ if (scratch_reg >= 0) {
+ UASM_i_MFC0(p, 1, c0_kscratch(), scratch_reg);
return;
}
/* K0 already points to save area, restore $1 and $2 */
@@ -673,8 +684,8 @@ static __cpuinit void build_restore_pagemask(u32 **p,
uasm_i_mtc0(p, 0, C0_PAGEMASK);
uasm_il_b(p, r, lid);
}
- if (scratch_reg > 0)
- UASM_i_MFC0(p, 1, 31, scratch_reg);
+ if (scratch_reg >= 0)
+ UASM_i_MFC0(p, 1, c0_kscratch(), scratch_reg);
else
UASM_i_LW(p, 1, scratchpad_offset(0), 0);
} else {
@@ -817,7 +828,7 @@ build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
if (pgd_reg != -1) {
/* pgd is in pgd_reg */
- UASM_i_MFC0(p, ptr, 31, pgd_reg);
+ UASM_i_MFC0(p, ptr, c0_kscratch(), pgd_reg);
} else {
/*
* &pgd << 11 stored in CONTEXT [23..63].
@@ -929,8 +940,8 @@ build_get_pgd_vmalloc64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
uasm_i_jr(p, ptr);
if (mode == refill_scratch) {
- if (scratch_reg > 0)
- UASM_i_MFC0(p, 1, 31, scratch_reg);
+ if (scratch_reg >= 0)
+ UASM_i_MFC0(p, 1, c0_kscratch(), scratch_reg);
else
UASM_i_LW(p, 1, scratchpad_offset(0), 0);
} else {
@@ -961,7 +972,7 @@ build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
uasm_i_srl(p, ptr, ptr, 19);
#else
/*
- * smp_processor_id() << 3 is stored in CONTEXT.
+ * smp_processor_id() << 2 is stored in CONTEXT.
*/
uasm_i_mfc0(p, ptr, C0_CONTEXT);
UASM_i_LA_mostly(p, tmp, pgdc);
@@ -1096,7 +1107,7 @@ struct mips_huge_tlb_info {
static struct mips_huge_tlb_info __cpuinit
build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l,
struct uasm_reloc **r, unsigned int tmp,
- unsigned int ptr, int c0_scratch)
+ unsigned int ptr, int c0_scratch_reg)
{
struct mips_huge_tlb_info rv;
unsigned int even, odd;
@@ -1110,12 +1121,12 @@ build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l,
UASM_i_MFC0(p, tmp, C0_BADVADDR);
if (pgd_reg != -1)
- UASM_i_MFC0(p, ptr, 31, pgd_reg);
+ UASM_i_MFC0(p, ptr, c0_kscratch(), pgd_reg);
else
UASM_i_MFC0(p, ptr, C0_CONTEXT);
- if (c0_scratch >= 0)
- UASM_i_MTC0(p, scratch, 31, c0_scratch);
+ if (c0_scratch_reg >= 0)
+ UASM_i_MTC0(p, scratch, c0_kscratch(), c0_scratch_reg);
else
UASM_i_SW(p, scratch, scratchpad_offset(0), 0);
@@ -1130,14 +1141,14 @@ build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l,
}
} else {
if (pgd_reg != -1)
- UASM_i_MFC0(p, ptr, 31, pgd_reg);
+ UASM_i_MFC0(p, ptr, c0_kscratch(), pgd_reg);
else
UASM_i_MFC0(p, ptr, C0_CONTEXT);
UASM_i_MFC0(p, tmp, C0_BADVADDR);
- if (c0_scratch >= 0)
- UASM_i_MTC0(p, scratch, 31, c0_scratch);
+ if (c0_scratch_reg >= 0)
+ UASM_i_MTC0(p, scratch, c0_kscratch(), c0_scratch_reg);
else
UASM_i_SW(p, scratch, scratchpad_offset(0), 0);
@@ -1242,8 +1253,8 @@ build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l,
}
UASM_i_MTC0(p, odd, C0_ENTRYLO1); /* load it */
- if (c0_scratch >= 0) {
- UASM_i_MFC0(p, scratch, 31, c0_scratch);
+ if (c0_scratch_reg >= 0) {
+ UASM_i_MFC0(p, scratch, c0_kscratch(), c0_scratch_reg);
build_tlb_write_entry(p, l, r, tlb_random);
uasm_l_leave(l, *p);
rv.restore_scratch = 1;
@@ -1286,7 +1297,7 @@ static void __cpuinit build_r4000_tlb_refill_handler(void)
memset(relocs, 0, sizeof(relocs));
memset(final_handler, 0, sizeof(final_handler));
- if ((scratch_reg > 0 || scratchpad_available()) && use_bbit_insns()) {
+ if ((scratch_reg >= 0 || scratchpad_available()) && use_bbit_insns()) {
htlb_info = build_fast_tlb_refill_handler(&p, &l, &r, K0, K1,
scratch_reg);
vmalloc_mode = refill_scratch;
@@ -1444,27 +1455,25 @@ static void __cpuinit build_r4000_tlb_refill_handler(void)
dump_handler("r4000_tlb_refill", (u32 *)ebase, 64);
}
-/*
- * 128 instructions for the fastpath handler is generous and should
- * never be exceeded.
- */
-#define FASTPATH_SIZE 128
+extern u32 handle_tlbl[], handle_tlbl_end[];
+extern u32 handle_tlbs[], handle_tlbs_end[];
+extern u32 handle_tlbm[], handle_tlbm_end[];
-u32 handle_tlbl[FASTPATH_SIZE] __cacheline_aligned;
-u32 handle_tlbs[FASTPATH_SIZE] __cacheline_aligned;
-u32 handle_tlbm[FASTPATH_SIZE] __cacheline_aligned;
#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
-u32 tlbmiss_handler_setup_pgd_array[16] __cacheline_aligned;
+extern u32 tlbmiss_handler_setup_pgd[], tlbmiss_handler_setup_pgd_end[];
static void __cpuinit build_r4000_setup_pgd(void)
{
const int a0 = 4;
const int a1 = 5;
u32 *p = tlbmiss_handler_setup_pgd_array;
+ const int tlbmiss_handler_setup_pgd_size =
+ tlbmiss_handler_setup_pgd_end - tlbmiss_handler_setup_pgd;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
- memset(tlbmiss_handler_setup_pgd_array, 0, sizeof(tlbmiss_handler_setup_pgd_array));
+ memset(tlbmiss_handler_setup_pgd, 0, tlbmiss_handler_setup_pgd_size *
+ sizeof(tlbmiss_handler_setup_pgd[0]));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
@@ -1490,17 +1499,17 @@ static void __cpuinit build_r4000_setup_pgd(void)
} else {
/* PGD in c0_KScratch */
uasm_i_jr(&p, 31);
- UASM_i_MTC0(&p, a0, 31, pgd_reg);
+ UASM_i_MTC0(&p, a0, c0_kscratch(), pgd_reg);
}
- if (p - tlbmiss_handler_setup_pgd_array > ARRAY_SIZE(tlbmiss_handler_setup_pgd_array))
- panic("tlbmiss_handler_setup_pgd_array space exceeded");
+ if (p >= tlbmiss_handler_setup_pgd_end)
+ panic("tlbmiss_handler_setup_pgd space exceeded");
+
uasm_resolve_relocs(relocs, labels);
- pr_debug("Wrote tlbmiss_handler_setup_pgd_array (%u instructions).\n",
- (unsigned int)(p - tlbmiss_handler_setup_pgd_array));
+ pr_debug("Wrote tlbmiss_handler_setup_pgd (%u instructions).\n",
+ (unsigned int)(p - tlbmiss_handler_setup_pgd));
- dump_handler("tlbmiss_handler",
- tlbmiss_handler_setup_pgd_array,
- ARRAY_SIZE(tlbmiss_handler_setup_pgd_array));
+ dump_handler("tlbmiss_handler", tlbmiss_handler_setup_pgd,
+ tlbmiss_handler_setup_pgd_size);
}
#endif
@@ -1745,10 +1754,11 @@ build_r3000_tlbchange_handler_head(u32 **p, unsigned int pte,
static void __cpuinit build_r3000_tlb_load_handler(void)
{
u32 *p = handle_tlbl;
+ const int handle_tlbl_size = handle_tlbl_end - handle_tlbl;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
- memset(handle_tlbl, 0, sizeof(handle_tlbl));
+ memset(handle_tlbl, 0, handle_tlbl_size * sizeof(handle_tlbl[0]));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
@@ -1762,23 +1772,24 @@ static void __cpuinit build_r3000_tlb_load_handler(void)
uasm_i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff);
uasm_i_nop(&p);
- if ((p - handle_tlbl) > FASTPATH_SIZE)
+ if (p >= handle_tlbl_end)
panic("TLB load handler fastpath space exceeded");
uasm_resolve_relocs(relocs, labels);
pr_debug("Wrote TLB load handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbl));
- dump_handler("r3000_tlb_load", handle_tlbl, ARRAY_SIZE(handle_tlbl));
+ dump_handler("r3000_tlb_load", handle_tlbl, handle_tlbl_size);
}
static void __cpuinit build_r3000_tlb_store_handler(void)
{
u32 *p = handle_tlbs;
+ const int handle_tlbs_size = handle_tlbs_end - handle_tlbs;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
- memset(handle_tlbs, 0, sizeof(handle_tlbs));
+ memset(handle_tlbs, 0, handle_tlbs_size * sizeof(handle_tlbs[0]));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
@@ -1792,23 +1803,24 @@ static void __cpuinit build_r3000_tlb_store_handler(void)
uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
uasm_i_nop(&p);
- if ((p - handle_tlbs) > FASTPATH_SIZE)
+ if (p >= handle_tlbs)
panic("TLB store handler fastpath space exceeded");
uasm_resolve_relocs(relocs, labels);
pr_debug("Wrote TLB store handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbs));
- dump_handler("r3000_tlb_store", handle_tlbs, ARRAY_SIZE(handle_tlbs));
+ dump_handler("r3000_tlb_store", handle_tlbs, handle_tlbs_size);
}
static void __cpuinit build_r3000_tlb_modify_handler(void)
{
u32 *p = handle_tlbm;
+ const int handle_tlbm_size = handle_tlbm_end - handle_tlbm;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
- memset(handle_tlbm, 0, sizeof(handle_tlbm));
+ memset(handle_tlbm, 0, handle_tlbm_size * sizeof(handle_tlbm[0]));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
@@ -1822,14 +1834,14 @@ static void __cpuinit build_r3000_tlb_modify_handler(void)
uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
uasm_i_nop(&p);
- if ((p - handle_tlbm) > FASTPATH_SIZE)
+ if (p >= handle_tlbm_end)
panic("TLB modify handler fastpath space exceeded");
uasm_resolve_relocs(relocs, labels);
pr_debug("Wrote TLB modify handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbm));
- dump_handler("r3000_tlb_modify", handle_tlbm, ARRAY_SIZE(handle_tlbm));
+ dump_handler("r3000_tlb_modify", handle_tlbm, handle_tlbm_size);
}
#endif /* CONFIG_MIPS_PGD_C0_CONTEXT */
@@ -1893,11 +1905,12 @@ build_r4000_tlbchange_handler_tail(u32 **p, struct uasm_label **l,
static void __cpuinit build_r4000_tlb_load_handler(void)
{
u32 *p = handle_tlbl;
+ const int handle_tlbl_size = handle_tlbl_end - handle_tlbl;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
struct work_registers wr;
- memset(handle_tlbl, 0, sizeof(handle_tlbl));
+ memset(handle_tlbl, 0, handle_tlbl_size * sizeof(handle_tlbl[0]));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
@@ -1935,6 +1948,19 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
uasm_i_nop(&p);
uasm_i_tlbr(&p);
+
+ switch (current_cpu_type()) {
+ default:
+ if (cpu_has_mips_r2) {
+ uasm_i_ehb(&p);
+
+ case CPU_CAVIUM_OCTEON:
+ case CPU_CAVIUM_OCTEON_PLUS:
+ case CPU_CAVIUM_OCTEON2:
+ break;
+ }
+ }
+
/* Examine entrylo 0 or 1 based on ptr. */
if (use_bbit_insns()) {
uasm_i_bbit0(&p, wr.r2, ilog2(sizeof(pte_t)), 8);
@@ -1989,6 +2015,19 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
uasm_i_nop(&p);
uasm_i_tlbr(&p);
+
+ switch (current_cpu_type()) {
+ default:
+ if (cpu_has_mips_r2) {
+ uasm_i_ehb(&p);
+
+ case CPU_CAVIUM_OCTEON:
+ case CPU_CAVIUM_OCTEON_PLUS:
+ case CPU_CAVIUM_OCTEON2:
+ break;
+ }
+ }
+
/* Examine entrylo 0 or 1 based on ptr. */
if (use_bbit_insns()) {
uasm_i_bbit0(&p, wr.r2, ilog2(sizeof(pte_t)), 8);
@@ -2036,24 +2075,25 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
uasm_i_j(&p, (unsigned long)tlb_do_page_fault_0 & 0x0fffffff);
uasm_i_nop(&p);
- if ((p - handle_tlbl) > FASTPATH_SIZE)
+ if (p >= handle_tlbl_end)
panic("TLB load handler fastpath space exceeded");
uasm_resolve_relocs(relocs, labels);
pr_debug("Wrote TLB load handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbl));
- dump_handler("r4000_tlb_load", handle_tlbl, ARRAY_SIZE(handle_tlbl));
+ dump_handler("r4000_tlb_load", handle_tlbl, handle_tlbl_size);
}
static void __cpuinit build_r4000_tlb_store_handler(void)
{
u32 *p = handle_tlbs;
+ const int handle_tlbs_size = handle_tlbs_end - handle_tlbs;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
struct work_registers wr;
- memset(handle_tlbs, 0, sizeof(handle_tlbs));
+ memset(handle_tlbs, 0, handle_tlbs_size * sizeof(handle_tlbs[0]));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
@@ -2090,24 +2130,25 @@ static void __cpuinit build_r4000_tlb_store_handler(void)
uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
uasm_i_nop(&p);
- if ((p - handle_tlbs) > FASTPATH_SIZE)
+ if (p >= handle_tlbs_end)
panic("TLB store handler fastpath space exceeded");
uasm_resolve_relocs(relocs, labels);
pr_debug("Wrote TLB store handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbs));
- dump_handler("r4000_tlb_store", handle_tlbs, ARRAY_SIZE(handle_tlbs));
+ dump_handler("r4000_tlb_store", handle_tlbs, handle_tlbs_size);
}
static void __cpuinit build_r4000_tlb_modify_handler(void)
{
u32 *p = handle_tlbm;
+ const int handle_tlbm_size = handle_tlbm_end - handle_tlbm;
struct uasm_label *l = labels;
struct uasm_reloc *r = relocs;
struct work_registers wr;
- memset(handle_tlbm, 0, sizeof(handle_tlbm));
+ memset(handle_tlbm, 0, handle_tlbm_size * sizeof(handle_tlbm[0]));
memset(labels, 0, sizeof(labels));
memset(relocs, 0, sizeof(relocs));
@@ -2145,14 +2186,28 @@ static void __cpuinit build_r4000_tlb_modify_handler(void)
uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
uasm_i_nop(&p);
- if ((p - handle_tlbm) > FASTPATH_SIZE)
+ if (p >= handle_tlbm_end)
panic("TLB modify handler fastpath space exceeded");
uasm_resolve_relocs(relocs, labels);
pr_debug("Wrote TLB modify handler fastpath (%u instructions).\n",
(unsigned int)(p - handle_tlbm));
- dump_handler("r4000_tlb_modify", handle_tlbm, ARRAY_SIZE(handle_tlbm));
+ dump_handler("r4000_tlb_modify", handle_tlbm, handle_tlbm_size);
+}
+
+static void __cpuinit flush_tlb_handlers(void)
+{
+ local_flush_icache_range((unsigned long)handle_tlbl,
+ (unsigned long)handle_tlbl_end);
+ local_flush_icache_range((unsigned long)handle_tlbs,
+ (unsigned long)handle_tlbs_end);
+ local_flush_icache_range((unsigned long)handle_tlbm,
+ (unsigned long)handle_tlbm_end);
+#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
+ local_flush_icache_range((unsigned long)tlbmiss_handler_setup_pgd,
+ (unsigned long)tlbmiss_handler_setup_pgd_end);
+#endif
}
void __cpuinit build_tlb_refill_handler(void)
@@ -2187,6 +2242,7 @@ void __cpuinit build_tlb_refill_handler(void)
build_r3000_tlb_load_handler();
build_r3000_tlb_store_handler();
build_r3000_tlb_modify_handler();
+ flush_tlb_handlers();
run_once++;
}
#else
@@ -2214,23 +2270,10 @@ void __cpuinit build_tlb_refill_handler(void)
build_r4000_tlb_modify_handler();
if (!cpu_has_local_ebase)
build_r4000_tlb_refill_handler();
+ flush_tlb_handlers();
run_once++;
}
if (cpu_has_local_ebase)
build_r4000_tlb_refill_handler();
}
}
-
-void __cpuinit flush_tlb_handlers(void)
-{
- local_flush_icache_range((unsigned long)handle_tlbl,
- (unsigned long)handle_tlbl + sizeof(handle_tlbl));
- local_flush_icache_range((unsigned long)handle_tlbs,
- (unsigned long)handle_tlbs + sizeof(handle_tlbs));
- local_flush_icache_range((unsigned long)handle_tlbm,
- (unsigned long)handle_tlbm + sizeof(handle_tlbm));
-#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
- local_flush_icache_range((unsigned long)tlbmiss_handler_setup_pgd_array,
- (unsigned long)tlbmiss_handler_setup_pgd_array + sizeof(handle_tlbm));
-#endif
-}
generated by cgit v0.10.2 at 2024-11-19 11:34:54 (GMT)