@@ -171,9 +171,6 @@
#ifndef cpu_has_llsc
#define cpu_has_llsc __isa_ge_or_opt(1, MIPS_CPU_LLSC)
#endif
-#ifndef cpu_has_bp_ghist
-#define cpu_has_bp_ghist __opt(MIPS_CPU_BP_GHIST)
-#endif
#ifndef kernel_uses_llsc
#define kernel_uses_llsc cpu_has_llsc
#endif
@@ -398,7 +398,6 @@ enum cpu_type_enum {
#define MIPS_CPU_RW_LLB BIT_ULL(32) /* LLADDR/LLB writes are allowed */
#define MIPS_CPU_LPA BIT_ULL(33) /* CPU supports Large Physical Addressing */
#define MIPS_CPU_CDMM BIT_ULL(34) /* CPU has Common Device Memory Map */
-#define MIPS_CPU_BP_GHIST BIT_ULL(35) /* R12K+ Branch Prediction Global History */
#define MIPS_CPU_SP BIT_ULL(36) /* Small (1KB) page support */
#define MIPS_CPU_FTLB BIT_ULL(37) /* CPU has Fixed-page-size TLB */
#define MIPS_CPU_NAN_LEGACY BIT_ULL(38) /* Legacy NaN implemented */
@@ -39,7 +39,6 @@
#define cpu_has_guestctl2 0
#define cpu_has_guestid 0
#define cpu_has_drg 0
-#define cpu_has_bp_ghist 0
#define cpu_has_mips16 0
#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
@@ -1278,8 +1278,9 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
- MIPS_CPU_LLSC | MIPS_CPU_BP_GHIST;
+ MIPS_CPU_LLSC;
c->tlbsize = 64;
+ write_c0_r10k_diag(read_c0_r10k_diag() | R10K_DIAG_E_GHIST);
break;
case PRID_IMP_R14000:
if (((c->processor_id >> 4) & 0x0f) > 2) {
@@ -1293,8 +1294,9 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
MIPS_CPU_FPU | MIPS_CPU_32FPR |
MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
- MIPS_CPU_LLSC | MIPS_CPU_BP_GHIST;
+ MIPS_CPU_LLSC;
c->tlbsize = 64;
+ write_c0_r10k_diag(read_c0_r10k_diag() | R10K_DIAG_E_GHIST);
break;
case PRID_IMP_LOONGSON_64C: /* Loongson-2/3 */
switch (c->processor_id & PRID_REV_MASK) {
@@ -2054,10 +2056,6 @@ void cpu_probe(void)
else
cpu_set_nofpu_opts(c);
- if (cpu_has_bp_ghist)
- write_c0_r10k_diag(read_c0_r10k_diag() |
- R10K_DIAG_E_GHIST);
-
if (cpu_has_mips_r2_r6) {
c->srsets = ((read_c0_srsctl() >> 26) & 0x0f) + 1;
/* R2 has Performance Counter Interrupt indicator */
MIPS_CPU_BP_GHIST is only set two times and more or less immediately used in cpu-probe.c itself. Remove this option to make room in options word. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> --- arch/mips/include/asm/cpu-features.h | 3 --- arch/mips/include/asm/cpu.h | 1 - arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h | 1 - arch/mips/kernel/cpu-probe.c | 10 ++++------ 4 files changed, 4 insertions(+), 11 deletions(-)