---

yaml --- r: 231861 b: refs/heads/master c: e77c32f h: refs/heads/master i: 231859: 51867fb v: v3
git-mirror · Jan 18, 2011 · 7f99670 · 7f99670
1 parent 1e896dd
commit 7f99670
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Showing 4 changed files with 6 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 487d70d0b8bd1c70d099a7526077ffefee412050
+refs/heads/master: e77c32fe284a4da1b4e0994890a4d3527812eb61
diff --git a/trunk/arch/mips/include/asm/cpu-info.h b/trunk/arch/mips/include/asm/cpu-info.h
@@ -78,6 +78,7 @@ struct cpuinfo_mips {
 	unsigned int		watch_reg_use_cnt; /* Usable by ptrace */
 #define NUM_WATCH_REGS 4
 	u16			watch_reg_masks[NUM_WATCH_REGS];
+	unsigned int		kscratch_mask; /* Usable KScratch mask. */
 } __attribute__((aligned(SMP_CACHE_BYTES)));
 
 extern struct cpuinfo_mips cpu_data[];

diff --git a/trunk/arch/mips/kernel/cpu-probe.c b/trunk/arch/mips/kernel/cpu-probe.c
@@ -739,6 +739,8 @@ static inline unsigned int decode_config4(struct cpuinfo_mips *c)
 	    && cpu_has_tlb)
 		c->tlbsize += (config4 & MIPS_CONF4_MMUSIZEEXT) * 0x40;
 
+	c->kscratch_mask = (config4 >> 16) & 0xff;
+
 	return config4 & MIPS_CONF_M;
 }
 

diff --git a/trunk/arch/mips/kernel/proc.c b/trunk/arch/mips/kernel/proc.c
@@ -74,6 +74,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		);
 	seq_printf(m, "shadow register sets\t: %d\n",
 		       cpu_data[n].srsets);
+	seq_printf(m, "kscratch registers\t: %d\n",
+		   hweight8(cpu_data[n].kscratch_mask));
 	seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
 
 	sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",