summaryrefslogtreecommitdiffstats
path: root/arch/mips/mm/tlbex.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/mm/tlbex.c')
-rw-r--r--arch/mips/mm/tlbex.c238
1 files changed, 132 insertions, 106 deletions
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 4ec0964b839..01b0961acfb 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -35,29 +35,44 @@
#include <asm/smp.h>
#include <asm/war.h>
-static __init int __maybe_unused r45k_bvahwbug(void)
+static inline int r45k_bvahwbug(void)
{
/* XXX: We should probe for the presence of this bug, but we don't. */
return 0;
}
-static __init int __maybe_unused r4k_250MHZhwbug(void)
+static inline int r4k_250MHZhwbug(void)
{
/* XXX: We should probe for the presence of this bug, but we don't. */
return 0;
}
-static __init int __maybe_unused bcm1250_m3_war(void)
+static inline int __maybe_unused bcm1250_m3_war(void)
{
return BCM1250_M3_WAR;
}
-static __init int __maybe_unused r10000_llsc_war(void)
+static inline int __maybe_unused r10000_llsc_war(void)
{
return R10000_LLSC_WAR;
}
/*
+ * Found by experiment: At least some revisions of the 4kc throw under
+ * some circumstances a machine check exception, triggered by invalid
+ * values in the index register. Delaying the tlbp instruction until
+ * after the next branch, plus adding an additional nop in front of
+ * tlbwi/tlbwr avoids the invalid index register values. Nobody knows
+ * why; it's not an issue caused by the core RTL.
+ *
+ */
+static int __init m4kc_tlbp_war(void)
+{
+ return (current_cpu_data.processor_id & 0xffff00) ==
+ (PRID_COMP_MIPS | PRID_IMP_4KC);
+}
+
+/*
* A little micro-assembler, intended for TLB refill handler
* synthesizing. It is intentionally kept simple, does only support
* a subset of instructions, and does not try to hide pipeline effects
@@ -78,7 +93,7 @@ enum fields
SET = 0x200
};
-#define OP_MASK 0x2f
+#define OP_MASK 0x3f
#define OP_SH 26
#define RS_MASK 0x1f
#define RS_SH 21
@@ -92,7 +107,7 @@ enum fields
#define IMM_SH 0
#define JIMM_MASK 0x3ffffff
#define JIMM_SH 0
-#define FUNC_MASK 0x2f
+#define FUNC_MASK 0x3f
#define FUNC_SH 0
#define SET_MASK 0x7
#define SET_SH 0
@@ -125,60 +140,60 @@ struct insn {
| (e) << RE_SH \
| (f) << FUNC_SH)
-static __initdata struct insn insn_table[] = {
- { insn_addiu, M(addiu_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_addu, M(spec_op,0,0,0,0,addu_op), RS | RT | RD },
- { insn_and, M(spec_op,0,0,0,0,and_op), RS | RT | RD },
- { insn_andi, M(andi_op,0,0,0,0,0), RS | RT | UIMM },
- { insn_beq, M(beq_op,0,0,0,0,0), RS | RT | BIMM },
- { insn_beql, M(beql_op,0,0,0,0,0), RS | RT | BIMM },
- { insn_bgez, M(bcond_op,0,bgez_op,0,0,0), RS | BIMM },
- { insn_bgezl, M(bcond_op,0,bgezl_op,0,0,0), RS | BIMM },
- { insn_bltz, M(bcond_op,0,bltz_op,0,0,0), RS | BIMM },
- { insn_bltzl, M(bcond_op,0,bltzl_op,0,0,0), RS | BIMM },
- { insn_bne, M(bne_op,0,0,0,0,0), RS | RT | BIMM },
- { insn_daddiu, M(daddiu_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_daddu, M(spec_op,0,0,0,0,daddu_op), RS | RT | RD },
- { insn_dmfc0, M(cop0_op,dmfc_op,0,0,0,0), RT | RD | SET},
- { insn_dmtc0, M(cop0_op,dmtc_op,0,0,0,0), RT | RD | SET},
- { insn_dsll, M(spec_op,0,0,0,0,dsll_op), RT | RD | RE },
- { insn_dsll32, M(spec_op,0,0,0,0,dsll32_op), RT | RD | RE },
- { insn_dsra, M(spec_op,0,0,0,0,dsra_op), RT | RD | RE },
- { insn_dsrl, M(spec_op,0,0,0,0,dsrl_op), RT | RD | RE },
- { insn_dsrl32, M(spec_op,0,0,0,0,dsrl32_op), RT | RD | RE },
- { insn_dsubu, M(spec_op,0,0,0,0,dsubu_op), RS | RT | RD },
- { insn_eret, M(cop0_op,cop_op,0,0,0,eret_op), 0 },
- { insn_j, M(j_op,0,0,0,0,0), JIMM },
- { insn_jal, M(jal_op,0,0,0,0,0), JIMM },
- { insn_jr, M(spec_op,0,0,0,0,jr_op), RS },
- { insn_ld, M(ld_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_ll, M(ll_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_lld, M(lld_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_lui, M(lui_op,0,0,0,0,0), RT | SIMM },
- { insn_lw, M(lw_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_mfc0, M(cop0_op,mfc_op,0,0,0,0), RT | RD | SET},
- { insn_mtc0, M(cop0_op,mtc_op,0,0,0,0), RT | RD | SET},
- { insn_ori, M(ori_op,0,0,0,0,0), RS | RT | UIMM },
- { insn_rfe, M(cop0_op,cop_op,0,0,0,rfe_op), 0 },
- { insn_sc, M(sc_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_scd, M(scd_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_sd, M(sd_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_sll, M(spec_op,0,0,0,0,sll_op), RT | RD | RE },
- { insn_sra, M(spec_op,0,0,0,0,sra_op), RT | RD | RE },
- { insn_srl, M(spec_op,0,0,0,0,srl_op), RT | RD | RE },
- { insn_subu, M(spec_op,0,0,0,0,subu_op), RS | RT | RD },
- { insn_sw, M(sw_op,0,0,0,0,0), RS | RT | SIMM },
- { insn_tlbp, M(cop0_op,cop_op,0,0,0,tlbp_op), 0 },
- { insn_tlbwi, M(cop0_op,cop_op,0,0,0,tlbwi_op), 0 },
- { insn_tlbwr, M(cop0_op,cop_op,0,0,0,tlbwr_op), 0 },
- { insn_xor, M(spec_op,0,0,0,0,xor_op), RS | RT | RD },
- { insn_xori, M(xori_op,0,0,0,0,0), RS | RT | UIMM },
+static struct insn insn_table[] __initdata = {
+ { insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD },
+ { insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD },
+ { insn_andi, M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
+ { insn_beq, M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
+ { insn_beql, M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
+ { insn_bgez, M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM },
+ { insn_bgezl, M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM },
+ { insn_bltz, M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM },
+ { insn_bltzl, M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM },
+ { insn_bne, M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
+ { insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD },
+ { insn_dmfc0, M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET},
+ { insn_dmtc0, M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET},
+ { insn_dsll, M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE },
+ { insn_dsll32, M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE },
+ { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE },
+ { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE },
+ { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE },
+ { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD },
+ { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 },
+ { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM },
+ { insn_jal, M(jal_op, 0, 0, 0, 0, 0), JIMM },
+ { insn_jr, M(spec_op, 0, 0, 0, 0, jr_op), RS },
+ { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_lui, M(lui_op, 0, 0, 0, 0, 0), RT | SIMM },
+ { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET},
+ { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET},
+ { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
+ { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 },
+ { insn_sc, M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_scd, M(scd_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_sd, M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE },
+ { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE },
+ { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE },
+ { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD },
+ { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 },
+ { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 },
+ { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 },
+ { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD },
+ { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
{ insn_invalid, 0, 0 }
};
#undef M
-static __init u32 build_rs(u32 arg)
+static u32 __init build_rs(u32 arg)
{
if (arg & ~RS_MASK)
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -186,7 +201,7 @@ static __init u32 build_rs(u32 arg)
return (arg & RS_MASK) << RS_SH;
}
-static __init u32 build_rt(u32 arg)
+static u32 __init build_rt(u32 arg)
{
if (arg & ~RT_MASK)
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -194,7 +209,7 @@ static __init u32 build_rt(u32 arg)
return (arg & RT_MASK) << RT_SH;
}
-static __init u32 build_rd(u32 arg)
+static u32 __init build_rd(u32 arg)
{
if (arg & ~RD_MASK)
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -202,7 +217,7 @@ static __init u32 build_rd(u32 arg)
return (arg & RD_MASK) << RD_SH;
}
-static __init u32 build_re(u32 arg)
+static u32 __init build_re(u32 arg)
{
if (arg & ~RE_MASK)
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -210,7 +225,7 @@ static __init u32 build_re(u32 arg)
return (arg & RE_MASK) << RE_SH;
}
-static __init u32 build_simm(s32 arg)
+static u32 __init build_simm(s32 arg)
{
if (arg > 0x7fff || arg < -0x8000)
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -218,7 +233,7 @@ static __init u32 build_simm(s32 arg)
return arg & 0xffff;
}
-static __init u32 build_uimm(u32 arg)
+static u32 __init build_uimm(u32 arg)
{
if (arg & ~IMM_MASK)
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -226,7 +241,7 @@ static __init u32 build_uimm(u32 arg)
return arg & IMM_MASK;
}
-static __init u32 build_bimm(s32 arg)
+static u32 __init build_bimm(s32 arg)
{
if (arg > 0x1ffff || arg < -0x20000)
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -237,7 +252,7 @@ static __init u32 build_bimm(s32 arg)
return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff);
}
-static __init u32 build_jimm(u32 arg)
+static u32 __init build_jimm(u32 arg)
{
if (arg & ~((JIMM_MASK) << 2))
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -245,7 +260,7 @@ static __init u32 build_jimm(u32 arg)
return (arg >> 2) & JIMM_MASK;
}
-static __init u32 build_func(u32 arg)
+static u32 __init build_func(u32 arg)
{
if (arg & ~FUNC_MASK)
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -253,7 +268,7 @@ static __init u32 build_func(u32 arg)
return arg & FUNC_MASK;
}
-static __init u32 build_set(u32 arg)
+static u32 __init build_set(u32 arg)
{
if (arg & ~SET_MASK)
printk(KERN_WARNING "TLB synthesizer field overflow\n");
@@ -300,69 +315,69 @@ static void __init build_insn(u32 **buf, enum opcode opc, ...)
}
#define I_u1u2u3(op) \
- static inline void __init i##op(u32 **buf, unsigned int a, \
+ static inline void i##op(u32 **buf, unsigned int a, \
unsigned int b, unsigned int c) \
{ \
build_insn(buf, insn##op, a, b, c); \
}
#define I_u2u1u3(op) \
- static inline void __init i##op(u32 **buf, unsigned int a, \
+ static inline void i##op(u32 **buf, unsigned int a, \
unsigned int b, unsigned int c) \
{ \
build_insn(buf, insn##op, b, a, c); \
}
#define I_u3u1u2(op) \
- static inline void __init i##op(u32 **buf, unsigned int a, \
+ static inline void i##op(u32 **buf, unsigned int a, \
unsigned int b, unsigned int c) \
{ \
build_insn(buf, insn##op, b, c, a); \
}
#define I_u1u2s3(op) \
- static inline void __init i##op(u32 **buf, unsigned int a, \
+ static inline void i##op(u32 **buf, unsigned int a, \
unsigned int b, signed int c) \
{ \
build_insn(buf, insn##op, a, b, c); \
}
#define I_u2s3u1(op) \
- static inline void __init i##op(u32 **buf, unsigned int a, \
+ static inline void i##op(u32 **buf, unsigned int a, \
signed int b, unsigned int c) \
{ \
build_insn(buf, insn##op, c, a, b); \
}
#define I_u2u1s3(op) \
- static inline void __init i##op(u32 **buf, unsigned int a, \
+ static inline void i##op(u32 **buf, unsigned int a, \
unsigned int b, signed int c) \
{ \
build_insn(buf, insn##op, b, a, c); \
}
#define I_u1u2(op) \
- static inline void __init i##op(u32 **buf, unsigned int a, \
+ static inline void i##op(u32 **buf, unsigned int a, \
unsigned int b) \
{ \
build_insn(buf, insn##op, a, b); \
}
#define I_u1s2(op) \
- static inline void __init i##op(u32 **buf, unsigned int a, \
+ static inline void i##op(u32 **buf, unsigned int a, \
signed int b) \
{ \
build_insn(buf, insn##op, a, b); \
}
#define I_u1(op) \
- static inline void __init i##op(u32 **buf, unsigned int a) \
+ static inline void i##op(u32 **buf, unsigned int a) \
{ \
build_insn(buf, insn##op, a); \
}
#define I_0(op) \
- static inline void __init i##op(u32 **buf) \
+ static inline void i##op(u32 **buf) \
{ \
build_insn(buf, insn##op); \
}
@@ -442,7 +457,7 @@ struct label {
enum label_id lab;
};
-static __init void build_label(struct label **lab, u32 *addr,
+static void __init build_label(struct label **lab, u32 *addr,
enum label_id l)
{
(*lab)->addr = addr;
@@ -511,34 +526,34 @@ L_LA(_r3000_write_probe_fail)
#define i_ehb(buf) i_sll(buf, 0, 0, 3)
#ifdef CONFIG_64BIT
-static __init int __maybe_unused in_compat_space_p(long addr)
+static int __init __maybe_unused in_compat_space_p(long addr)
{
/* Is this address in 32bit compat space? */
return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L);
}
-static __init int __maybe_unused rel_highest(long val)
+static int __init __maybe_unused rel_highest(long val)
{
return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
}
-static __init int __maybe_unused rel_higher(long val)
+static int __init __maybe_unused rel_higher(long val)
{
return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
}
#endif
-static __init int rel_hi(long val)
+static int __init rel_hi(long val)
{
return ((((val + 0x8000L) >> 16) & 0xffff) ^ 0x8000) - 0x8000;
}
-static __init int rel_lo(long val)
+static int __init rel_lo(long val)
{
return ((val & 0xffff) ^ 0x8000) - 0x8000;
}
-static __init void i_LA_mostly(u32 **buf, unsigned int rs, long addr)
+static void __init i_LA_mostly(u32 **buf, unsigned int rs, long addr)
{
#ifdef CONFIG_64BIT
if (!in_compat_space_p(addr)) {
@@ -556,7 +571,7 @@ static __init void i_LA_mostly(u32 **buf, unsigned int rs, long addr)
i_lui(buf, rs, rel_hi(addr));
}
-static __init void __maybe_unused i_LA(u32 **buf, unsigned int rs,
+static void __init __maybe_unused i_LA(u32 **buf, unsigned int rs,
long addr)
{
i_LA_mostly(buf, rs, addr);
@@ -574,7 +589,7 @@ struct reloc {
enum label_id lab;
};
-static __init void r_mips_pc16(struct reloc **rel, u32 *addr,
+static void __init r_mips_pc16(struct reloc **rel, u32 *addr,
enum label_id l)
{
(*rel)->addr = addr;
@@ -599,7 +614,7 @@ static inline void __resolve_relocs(struct reloc *rel, struct label *lab)
}
}
-static __init void resolve_relocs(struct reloc *rel, struct label *lab)
+static void __init resolve_relocs(struct reloc *rel, struct label *lab)
{
struct label *l;
@@ -609,7 +624,7 @@ static __init void resolve_relocs(struct reloc *rel, struct label *lab)
__resolve_relocs(rel, l);
}
-static __init void move_relocs(struct reloc *rel, u32 *first, u32 *end,
+static void __init move_relocs(struct reloc *rel, u32 *first, u32 *end,
long off)
{
for (; rel->lab != label_invalid; rel++)
@@ -617,7 +632,7 @@ static __init void move_relocs(struct reloc *rel, u32 *first, u32 *end,
rel->addr += off;
}
-static __init void move_labels(struct label *lab, u32 *first, u32 *end,
+static void __init move_labels(struct label *lab, u32 *first, u32 *end,
long off)
{
for (; lab->lab != label_invalid; lab++)
@@ -625,7 +640,7 @@ static __init void move_labels(struct label *lab, u32 *first, u32 *end,
lab->addr += off;
}
-static __init void copy_handler(struct reloc *rel, struct label *lab,
+static void __init copy_handler(struct reloc *rel, struct label *lab,
u32 *first, u32 *end, u32 *target)
{
long off = (long)(target - first);
@@ -636,7 +651,7 @@ static __init void copy_handler(struct reloc *rel, struct label *lab,
move_labels(lab, first, end, off);
}
-static __init int __maybe_unused insn_has_bdelay(struct reloc *rel,
+static int __init __maybe_unused insn_has_bdelay(struct reloc *rel,
u32 *addr)
{
for (; rel->lab != label_invalid; rel++) {
@@ -728,11 +743,11 @@ il_bgez(u32 **p, struct reloc **r, unsigned int reg, enum label_id l)
* We deliberately chose a buffer size of 128, so we won't scribble
* over anything important on overflow before we panic.
*/
-static __initdata u32 tlb_handler[128];
+static u32 tlb_handler[128] __initdata;
/* simply assume worst case size for labels and relocs */
-static __initdata struct label labels[128];
-static __initdata struct reloc relocs[128];
+static struct label labels[128] __initdata;
+static struct reloc relocs[128] __initdata;
/*
* The R3000 TLB handler is simple.
@@ -786,7 +801,7 @@ static void __init build_r3000_tlb_refill_handler(void)
* other one.To keep things simple, we first assume linear space,
* then we relocate it to the final handler layout as needed.
*/
-static __initdata u32 final_handler[64];
+static u32 final_handler[64] __initdata;
/*
* Hazards
@@ -810,9 +825,9 @@ static __initdata u32 final_handler[64];
*
* As if we MIPS hackers wouldn't know how to nop pipelines happy ...
*/
-static __init void __maybe_unused build_tlb_probe_entry(u32 **p)
+static void __init __maybe_unused build_tlb_probe_entry(u32 **p)
{
- switch (current_cpu_data.cputype) {
+ switch (current_cpu_type()) {
/* Found by experiment: R4600 v2.0 needs this, too. */
case CPU_R4600:
case CPU_R5000:
@@ -834,7 +849,7 @@ static __init void __maybe_unused build_tlb_probe_entry(u32 **p)
*/
enum tlb_write_entry { tlb_random, tlb_indexed };
-static __init void build_tlb_write_entry(u32 **p, struct label **l,
+static void __init build_tlb_write_entry(u32 **p, struct label **l,
struct reloc **r,
enum tlb_write_entry wmode)
{
@@ -845,7 +860,7 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
case tlb_indexed: tlbw = i_tlbwi; break;
}
- switch (current_cpu_data.cputype) {
+ switch (current_cpu_type()) {
case CPU_R4000PC:
case CPU_R4000SC:
case CPU_R4000MC:
@@ -893,7 +908,11 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
case CPU_4KSC:
case CPU_20KC:
case CPU_25KF:
+ case CPU_BCM3302:
+ case CPU_BCM4710:
case CPU_LOONGSON2:
+ if (m4kc_tlbp_war())
+ i_nop(p);
tlbw(p);
break;
@@ -974,7 +993,7 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
* TMP and PTR are scratch.
* TMP will be clobbered, PTR will hold the pmd entry.
*/
-static __init void
+static void __init
build_get_pmde64(u32 **p, struct label **l, struct reloc **r,
unsigned int tmp, unsigned int ptr)
{
@@ -1035,7 +1054,7 @@ build_get_pmde64(u32 **p, struct label **l, struct reloc **r,
* BVADDR is the faulting address, PTR is scratch.
* PTR will hold the pgd for vmalloc.
*/
-static __init void
+static void __init
build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r,
unsigned int bvaddr, unsigned int ptr)
{
@@ -1099,7 +1118,7 @@ build_get_pgd_vmalloc64(u32 **p, struct label **l, struct reloc **r,
* TMP and PTR are scratch.
* TMP will be clobbered, PTR will hold the pgd entry.
*/
-static __init void __maybe_unused
+static void __init __maybe_unused
build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
{
long pgdc = (long)pgd_current;
@@ -1134,12 +1153,12 @@ build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
#endif /* !CONFIG_64BIT */
-static __init void build_adjust_context(u32 **p, unsigned int ctx)
+static void __init build_adjust_context(u32 **p, unsigned int ctx)
{
unsigned int shift = 4 - (PTE_T_LOG2 + 1) + PAGE_SHIFT - 12;
unsigned int mask = (PTRS_PER_PTE / 2 - 1) << (PTE_T_LOG2 + 1);
- switch (current_cpu_data.cputype) {
+ switch (current_cpu_type()) {
case CPU_VR41XX:
case CPU_VR4111:
case CPU_VR4121:
@@ -1160,7 +1179,7 @@ static __init void build_adjust_context(u32 **p, unsigned int ctx)
i_andi(p, ctx, ctx, mask);
}
-static __init void build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
+static void __init build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
{
/*
* Bug workaround for the Nevada. It seems as if under certain
@@ -1169,7 +1188,7 @@ static __init void build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
* in a different cacheline or a load instruction, probably any
* memory reference, is between them.
*/
- switch (current_cpu_data.cputype) {
+ switch (current_cpu_type()) {
case CPU_NEVADA:
i_LW(p, ptr, 0, ptr);
GET_CONTEXT(p, tmp); /* get context reg */
@@ -1185,7 +1204,7 @@ static __init void build_get_ptep(u32 **p, unsigned int tmp, unsigned int ptr)
i_ADDU(p, ptr, ptr, tmp); /* add in offset */
}
-static __init void build_update_entries(u32 **p, unsigned int tmp,
+static void __init build_update_entries(u32 **p, unsigned int tmp,
unsigned int ptep)
{
/*
@@ -1705,7 +1724,8 @@ build_r4000_tlbchange_handler_head(u32 **p, struct label **l,
l_smp_pgtable_change(l, *p);
# endif
iPTE_LW(p, l, pte, ptr); /* get even pte */
- build_tlb_probe_entry(p);
+ if (!m4kc_tlbp_war())
+ build_tlb_probe_entry(p);
}
static void __init
@@ -1747,6 +1767,8 @@ static void __init build_r4000_tlb_load_handler(void)
build_r4000_tlbchange_handler_head(&p, &l, &r, K0, K1);
build_pte_present(&p, &l, &r, K0, K1, label_nopage_tlbl);
+ if (m4kc_tlbp_war())
+ build_tlb_probe_entry(&p);
build_make_valid(&p, &r, K0, K1);
build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1);
@@ -1781,6 +1803,8 @@ static void __init build_r4000_tlb_store_handler(void)
build_r4000_tlbchange_handler_head(&p, &l, &r, K0, K1);
build_pte_writable(&p, &l, &r, K0, K1, label_nopage_tlbs);
+ if (m4kc_tlbp_war())
+ build_tlb_probe_entry(&p);
build_make_write(&p, &r, K0, K1);
build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1);
@@ -1815,6 +1839,8 @@ static void __init build_r4000_tlb_modify_handler(void)
build_r4000_tlbchange_handler_head(&p, &l, &r, K0, K1);
build_pte_modifiable(&p, &l, &r, K0, K1, label_nopage_tlbm);
+ if (m4kc_tlbp_war())
+ build_tlb_probe_entry(&p);
/* Present and writable bits set, set accessed and dirty bits. */
build_make_write(&p, &r, K0, K1);
build_r4000_tlbchange_handler_tail(&p, &l, &r, K0, K1);
@@ -1846,7 +1872,7 @@ void __init build_tlb_refill_handler(void)
*/
static int run_once = 0;
- switch (current_cpu_data.cputype) {
+ switch (current_cpu_type()) {
case CPU_R2000:
case CPU_R3000:
case CPU_R3000A:
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-19 22:51:07 +0000