diff options
Diffstat (limited to 'arch/mips/mm/tlbex.c')
| -rw-r--r-- | arch/mips/mm/tlbex.c | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 4d46d378757..afeef93f81a 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -29,7 +29,6 @@ #include <linux/init.h> #include <linux/cache.h> -#include <asm/mmu_context.h> #include <asm/cacheflush.h> #include <asm/pgtable.h> #include <asm/war.h> @@ -302,82 +301,6 @@ static u32 tlb_handler[128] __cpuinitdata; static struct uasm_label labels[128] __cpuinitdata; static struct uasm_reloc relocs[128] __cpuinitdata; -#ifdef CONFIG_64BIT -static int check_for_high_segbits __cpuinitdata; -#endif - -static void __cpuinit insn_fixup(unsigned int **start, unsigned int **stop, - unsigned int i_const) -{ - unsigned int **p; - - for (p = start; p < stop; p++) { -#ifndef CONFIG_CPU_MICROMIPS - unsigned int *ip; - - ip = *p; - *ip = (*ip & 0xffff0000) | i_const; -#else - unsigned short *ip; - - ip = ((unsigned short *)((unsigned int)*p - 1)); - if ((*ip & 0xf000) == 0x4000) { - *ip &= 0xfff1; - *ip |= (i_const << 1); - } else if ((*ip & 0xf000) == 0x6000) { - *ip &= 0xfff1; - *ip |= ((i_const >> 2) << 1); - } else { - ip++; - *ip = i_const; - } -#endif - local_flush_icache_range((unsigned long)ip, - (unsigned long)ip + sizeof(*ip)); - } -} - -#define asid_insn_fixup(section, const) \ -do { \ - extern unsigned int *__start_ ## section; \ - extern unsigned int *__stop_ ## section; \ - insn_fixup(&__start_ ## section, &__stop_ ## section, const); \ -} while(0) - -/* - * Caller is assumed to flush the caches before the first context switch. - */ -static void __cpuinit setup_asid(unsigned int inc, unsigned int mask, - unsigned int version_mask, - unsigned int first_version) -{ - extern asmlinkage void handle_ri_rdhwr_vivt(void); - unsigned long *vivt_exc; - -#ifdef CONFIG_CPU_MICROMIPS - /* - * Worst case optimised microMIPS addiu instructions support - * only a 3-bit immediate value. - */ - if(inc > 7) - panic("Invalid ASID increment value!"); -#endif - asid_insn_fixup(__asid_inc, inc); - asid_insn_fixup(__asid_mask, mask); - asid_insn_fixup(__asid_version_mask, version_mask); - asid_insn_fixup(__asid_first_version, first_version); - - /* Patch up the 'handle_ri_rdhwr_vivt' handler. */ - vivt_exc = (unsigned long *) &handle_ri_rdhwr_vivt; -#ifdef CONFIG_CPU_MICROMIPS - vivt_exc = (unsigned long *)((unsigned long) vivt_exc - 1); -#endif - vivt_exc++; - *vivt_exc = (*vivt_exc & ~mask) | mask; - - current_cpu_data.asid_cache = first_version; -} - static int check_for_high_segbits __cpuinitdata; static unsigned int kscratch_used_mask __cpuinitdata; @@ -2256,7 +2179,6 @@ void __cpuinit build_tlb_refill_handler(void) case CPU_TX3922: case CPU_TX3927: #ifndef CONFIG_MIPS_PGD_C0_CONTEXT - setup_asid(0x40, 0xfc0, 0xf000, ASID_FIRST_VERSION_R3000); if (cpu_has_local_ebase) build_r3000_tlb_refill_handler(); if (!run_once) { @@ -2282,11 +2204,6 @@ void __cpuinit build_tlb_refill_handler(void) break; default: -#ifndef CONFIG_MIPS_MT_SMTC - setup_asid(0x1, 0xff, 0xff00, ASID_FIRST_VERSION_R4000); -#else - setup_asid(0x1, smtc_asid_mask, 0xff00, ASID_FIRST_VERSION_R4000); -#endif if (!run_once) { scratch_reg = allocate_kscratch(); #ifdef CONFIG_MIPS_PGD_C0_CONTEXT |