[PATCH] powerpc: Add cputable entry for POWER6

Add a cputable entry for the POWER6 processor.

The SIHV and SIPR bits in the mmcra have moved in POWER6, so disable
support for that until oprofile is fixed.

Also tell firmware that we know about POWER6.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 39e348a..3f7182d 100644 (file)
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -57,6 +57,8 @@ extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
                                 PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
 #define COMMON_USER_POWER5_PLUS        (COMMON_USER_PPC64 | PPC_FEATURE_POWER5_PLUS|\
                                 PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
+#define COMMON_USER_POWER6     (COMMON_USER_PPC64 | PPC_FEATURE_ARCH_2_05 |\
+                                PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
 #define COMMON_USER_BOOKE      (PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \
                                 PPC_FEATURE_BOOKE)
 
@@ -263,6 +265,20 @@ struct cpu_spec    cpu_specs[] = {
                .oprofile_type          = PPC_OPROFILE_POWER4,
                .platform               = "power5+",
        },
+       {       /* Power6 */
+               .pvr_mask               = 0xffff0000,
+               .pvr_value              = 0x003e0000,
+               .cpu_name               = "POWER6",
+               .cpu_features           = CPU_FTRS_POWER6,
+               .cpu_user_features      = COMMON_USER_POWER6,
+               .icache_bsize           = 128,
+               .dcache_bsize           = 128,
+               .num_pmcs               = 6,
+               .cpu_setup              = __setup_cpu_power4,
+               .oprofile_cpu_type      = "ppc64/power6",
+               .oprofile_type          = PPC_OPROFILE_POWER4,
+               .platform               = "power6",
+       },
        {       /* Cell Broadband Engine */
                .pvr_mask               = 0xffff0000,
                .pvr_value              = 0x00700000,

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 00ad7f9..078fb55 100644 (file)
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -686,6 +686,7 @@ static void __init early_cmdline_parse(void)
  */
 static unsigned char ibm_architecture_vec[] = {
        W(0xfffe0000), W(0x003a0000),   /* POWER5/POWER5+ */
+       W(0xffff0000), W(0x003e0000),   /* POWER6 */
        W(0xfffffffe), W(0x0f000001),   /* all 2.04-compliant and earlier */
        5 - 1,                          /* 5 option vectors */
 

diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
index 4321483..9fcf016 100644 (file)
--- a/include/asm-powerpc/cputable.h
+++ b/include/asm-powerpc/cputable.h
@@ -22,6 +22,7 @@
 #define PPC_FEATURE_BOOKE              0x00008000
 #define PPC_FEATURE_SMT                        0x00004000
 #define PPC_FEATURE_ICACHE_SNOOP       0x00002000
+#define PPC_FEATURE_ARCH_2_05          0x00001000
 
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
@@ -320,6 +321,11 @@ extern void do_cpu_ftr_fixups(unsigned long offset);
            CPU_FTR_MMCRA | CPU_FTR_SMT | \
            CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
            CPU_FTR_MMCRA_SIHV | CPU_FTR_PURR)
+#define CPU_FTRS_POWER6 (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
+           CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \
+           CPU_FTR_MMCRA | CPU_FTR_SMT | \
+           CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
+           CPU_FTR_PURR | CPU_FTR_CI_LARGE_PAGE)
 #define CPU_FTRS_CELL  (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \
            CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \
            CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
@@ -331,8 +337,8 @@ extern void do_cpu_ftr_fixups(unsigned long offset);
 #ifdef __powerpc64__
 #define CPU_FTRS_POSSIBLE      \
            (CPU_FTRS_POWER3 | CPU_FTRS_RS64 | CPU_FTRS_POWER4 |        \
-           CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | CPU_FTRS_CELL | \
-            CPU_FTR_CI_LARGE_PAGE)
+           CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | CPU_FTRS_POWER6 |       \
+           CPU_FTRS_CELL | CPU_FTR_CI_LARGE_PAGE)
 #else
 enum {
        CPU_FTRS_POSSIBLE =
@@ -376,8 +382,8 @@ enum {
 #ifdef __powerpc64__
 #define CPU_FTRS_ALWAYS                \
            (CPU_FTRS_POWER3 & CPU_FTRS_RS64 & CPU_FTRS_POWER4 &        \
-           CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & CPU_FTRS_CELL & \
-           CPU_FTRS_POSSIBLE)
+           CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & CPU_FTRS_POWER6 &       \
+           CPU_FTRS_CELL & CPU_FTRS_POSSIBLE)
 #else
 enum {
        CPU_FTRS_ALWAYS =