Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/ppc64-2.6

26 files changed, 480 insertions, 538 deletions

diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index f4b3bfcc109d..ae60eb1193c6 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -31,7 +31,7 @@ obj-$(CONFIG_PPC_MULTIPLATFORM) += nvram.o i8259.o prom_init.o prom.o
 
 obj-$(CONFIG_PPC_PSERIES) += pSeries_pci.o pSeries_lpar.o pSeries_hvCall.o \
                              pSeries_nvram.o rtasd.o ras.o pSeries_reconfig.o \
-                             pSeries_setup.o pSeries_iommu.o
+                             pSeries_setup.o pSeries_iommu.o udbg_16550.o
 
 obj-$(CONFIG_PPC_BPA) += bpa_setup.o bpa_iommu.o bpa_nvram.o \
                          bpa_iic.o spider-pic.o
@@ -58,9 +58,11 @@ obj-$(CONFIG_XICS)		+= xics.o
 obj-$(CONFIG_MPIC)              += mpic.o
 
 obj-$(CONFIG_PPC_PMAC)          += pmac_setup.o pmac_feature.o pmac_pci.o \
-                                   pmac_time.o pmac_nvram.o pmac_low_i2c.o
+                                   pmac_time.o pmac_nvram.o pmac_low_i2c.o \
+                                   udbg_scc.o
 
-obj-$(CONFIG_PPC_MAPLE)         += maple_setup.o maple_pci.o maple_time.o
+obj-$(CONFIG_PPC_MAPLE)         += maple_setup.o maple_pci.o maple_time.o \
+                                   udbg_16550.o
 
 obj-$(CONFIG_U3_DART)           += u3_iommu.o
 
diff --git a/arch/ppc64/kernel/btext.c b/arch/ppc64/kernel/btext.c
index c53f079e9b77..b6fbfbe9032d 100644
--- a/arch/ppc64/kernel/btext.c
+++ b/arch/ppc64/kernel/btext.c
@@ -7,7 +7,6 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <linux/version.h>
 
 #include <asm/sections.h>
 #include <asm/prom.h>
diff --git a/arch/ppc64/kernel/cputable.c b/arch/ppc64/kernel/cputable.c
index 4847f2ac8c9f..8831a28c3c4e 100644
--- a/arch/ppc64/kernel/cputable.c
+++ b/arch/ppc64/kernel/cputable.c
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 
+#include <asm/oprofile_impl.h>
 #include <asm/cputable.h>
 
 struct cpu_spec* cur_cpu_spec = NULL;
@@ -54,24 +55,32 @@ struct cpu_spec	cpu_specs[] = {
                 .pvr_value              = 0x00400000,
                 .cpu_name               = "POWER3 (630)",
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_PMC8,
+                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR,
                 .cpu_user_features = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power3",
+                .oprofile_model         = &op_model_rs64,
+#endif
         },
         {       /* Power3+ */
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00410000,
                 .cpu_name               = "POWER3 (630+)",
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
-                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_PMC8,
+                        CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR,
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power3",
+                .oprofile_model         = &op_model_rs64,
+#endif
         },
         {       /* Northstar */
                 .pvr_mask               = 0xffff0000,
@@ -79,11 +88,16 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_name               = "RS64-II (northstar)",
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_PMC8 | CPU_FTR_MMCRA | CPU_FTR_CTRL,
+                        CPU_FTR_MMCRA | CPU_FTR_CTRL,
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/rs64",
+                .oprofile_model         = &op_model_rs64,
+#endif
         },
         {       /* Pulsar */
                 .pvr_mask               = 0xffff0000,
@@ -91,11 +105,16 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_name               = "RS64-III (pulsar)",
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_PMC8 | CPU_FTR_MMCRA | CPU_FTR_CTRL,
+                        CPU_FTR_MMCRA | CPU_FTR_CTRL,
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/rs64",
+                .oprofile_model         = &op_model_rs64,
+#endif
         },
         {       /* I-star */
                 .pvr_mask               = 0xffff0000,
@@ -103,11 +122,16 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_name               = "RS64-III (icestar)",
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_PMC8 | CPU_FTR_MMCRA | CPU_FTR_CTRL,
+                        CPU_FTR_MMCRA | CPU_FTR_CTRL,
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/rs64",
+                .oprofile_model         = &op_model_rs64,
+#endif
         },
         {       /* S-star */
                 .pvr_mask               = 0xffff0000,
@@ -115,11 +139,16 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_name               = "RS64-IV (sstar)",
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
-                        CPU_FTR_PMC8 | CPU_FTR_MMCRA | CPU_FTR_CTRL,
+                        CPU_FTR_MMCRA | CPU_FTR_CTRL,
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_power3,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/rs64",
+                .oprofile_model         = &op_model_rs64,
+#endif
         },
         {       /* Power4 */
                 .pvr_mask               = 0xffff0000,
@@ -127,11 +156,16 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_name               = "POWER4 (gp)",
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
+                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA,
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_power4,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power4",
+                .oprofile_model         = &op_model_rs64,
+#endif
         },
         {       /* Power4+ */
                 .pvr_mask               = 0xffff0000,
@@ -139,11 +173,16 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_name               = "POWER4+ (gq)",
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
+                        CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA,
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_power4,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power4",
+                .oprofile_model         = &op_model_power4,
+#endif
         },
         {       /* PPC970 */
                 .pvr_mask               = 0xffff0000,
@@ -152,12 +191,17 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
                         CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
-                        CPU_FTR_CAN_NAP | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
+                        CPU_FTR_CAN_NAP | CPU_FTR_MMCRA,
                 .cpu_user_features      = COMMON_USER_PPC64 |
                         PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_ppc970,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/970",
+                .oprofile_model         = &op_model_power4,
+#endif
         },
         {       /* PPC970FX */
                 .pvr_mask               = 0xffff0000,
@@ -166,12 +210,17 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
                         CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
-                        CPU_FTR_CAN_NAP | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
+                        CPU_FTR_CAN_NAP | CPU_FTR_MMCRA,
                 .cpu_user_features      = COMMON_USER_PPC64 |
                         PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 8,
                 .cpu_setup              = __setup_cpu_ppc970,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/970",
+                .oprofile_model         = &op_model_power4,
+#endif
         },
         {       /* PPC970MP */
                 .pvr_mask               = 0xffff0000,
@@ -180,12 +229,16 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_features           = CPU_FTR_SPLIT_ID_CACHE |
                         CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
                         CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
-                        CPU_FTR_CAN_NAP | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
+                        CPU_FTR_CAN_NAP | CPU_FTR_MMCRA,
                 .cpu_user_features      = COMMON_USER_PPC64 |
                         PPC_FEATURE_HAS_ALTIVEC_COMP,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
                 .cpu_setup              = __setup_cpu_ppc970,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/970",
+                .oprofile_model         = &op_model_power4,
+#endif
         },
         {       /* Power5 */
                 .pvr_mask               = 0xffff0000,
@@ -199,7 +252,12 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 6,
                 .cpu_setup              = __setup_cpu_power4,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power5",
+                .oprofile_model         = &op_model_power4,
+#endif
         },
         {       /* Power5 */
                 .pvr_mask               = 0xffff0000,
@@ -213,7 +271,12 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 6,
                 .cpu_setup              = __setup_cpu_power4,
+#ifdef CONFIG_OPROFILE
+                .oprofile_cpu_type      = "ppc64/power5",
+                .oprofile_model         = &op_model_power4,
+#endif
         },
         {       /* BE DD1.x */
                 .pvr_mask               = 0xffff0000,
@@ -239,6 +302,7 @@ struct cpu_spec	cpu_specs[] = {
                 .cpu_user_features      = COMMON_USER_PPC64,
                 .icache_bsize           = 128,
                 .dcache_bsize           = 128,
+                .num_pmcs               = 6,
                 .cpu_setup              = __setup_cpu_power4,
         }
 };
diff --git a/arch/ppc64/kernel/entry.S b/arch/ppc64/kernel/entry.S
index b61572eb2a71..bf99b4a92f20 100644
--- a/arch/ppc64/kernel/entry.S
+++ b/arch/ppc64/kernel/entry.S
@@ -400,15 +400,14 @@ BEGIN_FTR_SECTION
         cmpd    cr1,r6,r9       /* or is new ESID the same as current ESID? */
         cror    eq,4*cr1+eq,eq
         beq     2f              /* if yes, don't slbie it */
-        oris    r0,r6,0x0800    /* set C (class) bit */
 
         /* Bolt in the new stack SLB entry */
         ld      r7,KSP_VSID(r4) /* Get new stack's VSID */
-        oris    r6,r6,(SLB_ESID_V)@h
-        ori     r6,r6,(SLB_NUM_BOLTED-1)@l
-        slbie   r0
-        slbie   r0              /* Workaround POWER5 < DD2.1 issue */
-        slbmte  r7,r6
+        oris    r0,r6,(SLB_ESID_V)@h
+        ori     r0,r0,(SLB_NUM_BOLTED-1)@l
+        slbie   r6
+        slbie   r6              /* Workaround POWER5 < DD2.1 issue */
+        slbmte  r7,r0
         isync
 
 2:
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S
index 036959775623..b436206e317d 100644
--- a/arch/ppc64/kernel/head.S
+++ b/arch/ppc64/kernel/head.S
@@ -1646,8 +1646,9 @@ _GLOBAL(__secondary_start)
 #else
         /* set the ASR */
         ld      r3,systemcfg@got(r2)    /* r3 = ptr to systemcfg         */
+        ld      r3,0(r3)
         lwz     r3,PLATFORM(r3)         /* r3 = platform flags           */
-        cmpldi  r3,PLATFORM_PSERIES_LPAR
+        andi.   r3,r3,PLATFORM_LPAR     /* Test if bit 0 is set (LPAR bit) */
         bne     98f
         mfspr   r3,PVR
         srwi    r3,r3,16
@@ -1809,8 +1810,9 @@ _STATIC(start_here_multiplatform)
         ld      r3,PACASTABREAL(r13)
         ori     r4,r3,1                 /* turn on valid bit             */
         ld      r3,systemcfg@got(r2)    /* r3 = ptr to systemcfg */
+        ld      r3,0(r3)
         lwz     r3,PLATFORM(r3)         /* r3 = platform flags */
-        cmpldi  r3,PLATFORM_PSERIES_LPAR
+        andi.   r3,r3,PLATFORM_LPAR     /* Test if bit 0 is set (LPAR bit) */
         bne     98f
         mfspr   r3,PVR
         srwi    r3,r3,16
@@ -1828,9 +1830,10 @@ _STATIC(start_here_multiplatform)
 99:
         /* Set SDR1 (hash table pointer) */
         ld      r3,systemcfg@got(r2)    /* r3 = ptr to systemcfg */
+        ld      r3,0(r3)
         lwz     r3,PLATFORM(r3)         /* r3 = platform flags */
         /* Test if bit 0 is set (LPAR bit) */
-        andi.   r3,r3,0x1
+        andi.   r3,r3,PLATFORM_LPAR
         bne     98f
         LOADADDR(r6,_SDR1)              /* Only if NOT LPAR */
         sub     r6,r6,r26
diff --git a/arch/ppc64/kernel/lparcfg.c b/arch/ppc64/kernel/lparcfg.c
index edad361a8db0..cae19bbd5acd 100644
--- a/arch/ppc64/kernel/lparcfg.c
+++ b/arch/ppc64/kernel/lparcfg.c
@@ -569,7 +569,7 @@ struct file_operations lparcfg_fops = {
 int __init lparcfg_init(void)
 {
         struct proc_dir_entry *ent;
-        mode_t mode = S_IRUSR;
+        mode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
 
         /* Allow writing if we have FW_FEATURE_SPLPAR */
         if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
diff --git a/arch/ppc64/kernel/maple_setup.c b/arch/ppc64/kernel/maple_setup.c
index bb55b5a56910..fc0567498a3a 100644
--- a/arch/ppc64/kernel/maple_setup.c
+++ b/arch/ppc64/kernel/maple_setup.c
@@ -207,9 +207,6 @@ static void __init maple_init_early(void)
                 comport = (void *)ioremap(physport, 16);
                 udbg_init_uart(comport, default_speed);
 
-                ppc_md.udbg_putc = udbg_putc;
-                ppc_md.udbg_getc = udbg_getc;
-                ppc_md.udbg_getc_poll = udbg_getc_poll;
                 DBG("Hello World !\n");
         }
 
diff --git a/arch/ppc64/kernel/pSeries_lpar.c b/arch/ppc64/kernel/pSeries_lpar.c
index a1d5fdfea4a8..a6de83f2078f 100644
--- a/arch/ppc64/kernel/pSeries_lpar.c
+++ b/arch/ppc64/kernel/pSeries_lpar.c
@@ -192,9 +192,9 @@ static unsigned char udbg_getcLP(void)
 void udbg_init_debug_lpar(void)
 {
         vtermno = 0;
-        ppc_md.udbg_putc = udbg_putcLP;
-        ppc_md.udbg_getc = udbg_getcLP;
-        ppc_md.udbg_getc_poll = udbg_getc_pollLP;
+        udbg_putc = udbg_putcLP;
+        udbg_getc = udbg_getcLP;
+        udbg_getc_poll = udbg_getc_pollLP;
 }
 
 /* returns 0 if couldn't find or use /chosen/stdout as console */
@@ -227,18 +227,18 @@ int find_udbg_vterm(void)
                         termno = (u32 *)get_property(stdout_node, "reg", NULL);
                         if (termno) {
                                 vtermno = termno[0];
-                                ppc_md.udbg_putc = udbg_putcLP;
-                                ppc_md.udbg_getc = udbg_getcLP;
-                                ppc_md.udbg_getc_poll = udbg_getc_pollLP;
+                                udbg_putc = udbg_putcLP;
+                                udbg_getc = udbg_getcLP;
+                                udbg_getc_poll = udbg_getc_pollLP;
                                 found = 1;
                         }
                 } else if (device_is_compatible(stdout_node, "hvterm-protocol")) {
                         termno = (u32 *)get_property(stdout_node, "reg", NULL);
                         if (termno) {
                                 vtermno = termno[0];
-                                ppc_md.udbg_putc = udbg_hvsi_putc;
-                                ppc_md.udbg_getc = udbg_hvsi_getc;
-                                ppc_md.udbg_getc_poll = udbg_hvsi_getc_poll;
+                                udbg_putc = udbg_hvsi_putc;
+                                udbg_getc = udbg_hvsi_getc;
+                                udbg_getc_poll = udbg_hvsi_getc_poll;
                                 found = 1;
                         }
                 }
diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/ppc64/kernel/pSeries_setup.c
index f0f0630cf07c..9490b6c5b173 100644
--- a/arch/ppc64/kernel/pSeries_setup.c
+++ b/arch/ppc64/kernel/pSeries_setup.c
@@ -37,7 +37,7 @@
 #include <linux/ioport.h>
 #include <linux/console.h>
 #include <linux/pci.h>
-#include <linux/version.h>
+#include <linux/utsname.h>
 #include <linux/adb.h>
 #include <linux/module.h>
 #include <linux/delay.h>
@@ -272,7 +272,7 @@ static int __init pSeries_init_panel(void)
 {
         /* Manually leave the kernel version on the panel. */
         ppc_md.progress("Linux ppc64\n", 0);
-        ppc_md.progress(UTS_RELEASE, 0);
+        ppc_md.progress(system_utsname.version, 0);
 
         return 0;
 }
@@ -397,9 +397,6 @@ static void __init pSeries_init_early(void)
                 comport = (void *)ioremap(physport, 16);
                 udbg_init_uart(comport, default_speed);
 
-                ppc_md.udbg_putc = udbg_putc;
-                ppc_md.udbg_getc = udbg_getc;
-                ppc_md.udbg_getc_poll = udbg_getc_poll;
                 DBG("Hello World !\n");
         }
 
diff --git a/arch/ppc64/kernel/pmac_setup.c b/arch/ppc64/kernel/pmac_setup.c
index 8ff86a766cdf..e7f695dcd8c8 100644
--- a/arch/ppc64/kernel/pmac_setup.c
+++ b/arch/ppc64/kernel/pmac_setup.c
@@ -274,16 +274,6 @@ static void __pmac pmac_halt(void)
 }
 
 #ifdef CONFIG_BOOTX_TEXT
-static int dummy_getc_poll(void)
-{
-        return -1;
-}
-
-static unsigned char dummy_getc(void)
-{
-        return 0;
-}
-
 static void btext_putc(unsigned char c)
 {
         btext_drawchar(c);
@@ -342,16 +332,13 @@ static void __init pmac_init_early(void)
                 sccdbg = 1;
                 udbg_init_scc(NULL);
         }
-
-        else {
 #ifdef CONFIG_BOOTX_TEXT
+        else {
                 init_boot_display();
 
-                ppc_md.udbg_putc = btext_putc;
-                ppc_md.udbg_getc = dummy_getc;
-                ppc_md.udbg_getc_poll = dummy_getc_poll;
-#endif /* CONFIG_BOOTX_TEXT */
+                udbg_putc = btext_putc;
         }
+#endif /* CONFIG_BOOTX_TEXT */
 
         /* Setup interrupt mapping options */
         ppc64_interrupt_controller = IC_OPEN_PIC;
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c
index b21848826791..6ad5a8467f87 100644
--- a/arch/ppc64/kernel/prom.c
+++ b/arch/ppc64/kernel/prom.c
@@ -22,7 +22,6 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <linux/version.h>
 #include <linux/threads.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c
index 122283a1d39a..9979919cdf92 100644
--- a/arch/ppc64/kernel/prom_init.c
+++ b/arch/ppc64/kernel/prom_init.c
@@ -22,7 +22,6 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/init.h>
-#include <linux/version.h>
 #include <linux/threads.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c
index ee3b20de2e7a..d0bb68af0ea4 100644
--- a/arch/ppc64/kernel/setup.c
+++ b/arch/ppc64/kernel/setup.c
@@ -25,7 +25,7 @@
 #include <linux/seq_file.h>
 #include <linux/ioport.h>
 #include <linux/console.h>
-#include <linux/version.h>
+#include <linux/utsname.h>
 #include <linux/tty.h>
 #include <linux/root_dev.h>
 #include <linux/notifier.h>
@@ -89,7 +89,7 @@ extern void udbg_init_maple_realmode(void);
 #define EARLY_DEBUG_INIT() udbg_init_maple_realmode()
 #define EARLY_DEBUG_INIT() udbg_init_pmac_realmode()
 #define EARLY_DEBUG_INIT()                                              \
-        do { ppc_md.udbg_putc = call_rtas_display_status_delay; } while(0)
+        do { udbg_putc = call_rtas_display_status_delay; } while(0)
 #endif
 
 /* extern void *stab; */
@@ -108,7 +108,6 @@ int boot_cpuid = 0;
 int boot_cpuid_phys = 0;
 dev_t boot_dev;
 u64 ppc64_pft_size;
-u64 ppc64_debug_switch;
 
 struct ppc64_caches ppc64_caches;
 EXPORT_SYMBOL_GPL(ppc64_caches);
@@ -154,34 +153,6 @@ struct screen_info screen_info = {
         .orig_video_points = 16
 };
 
-/*
- * Initialize the PPCDBG state.  Called before relocation has been enabled.
- */
-void __init ppcdbg_initialize(void)
-{
-        ppc64_debug_switch = PPC_DEBUG_DEFAULT; /* | PPCDBG_BUSWALK | */
-        /* PPCDBG_PHBINIT | PPCDBG_MM | PPCDBG_MMINIT | PPCDBG_TCEINIT | PPCDBG_TCE */;
-}
-
-/*
- * Early boot console based on udbg
- */
-static struct console udbg_console = {
-        .name   = "udbg",
-        .write  = udbg_console_write,
-        .flags  = CON_PRINTBUFFER,
-        .index  = -1,
-};
-static int early_console_initialized;
-
-void __init disable_early_printk(void)
-{
-        if (!early_console_initialized)
-                return;
-        unregister_console(&udbg_console);
-        early_console_initialized = 0;
-}
-
 #if defined(CONFIG_PPC_MULTIPLATFORM) && defined(CONFIG_SMP)
 
 static int smt_enabled_cmdline;
@@ -425,12 +396,6 @@ void __init early_setup(unsigned long dt_ptr)
         }
         ppc_md = **mach;
 
-        /* our udbg callbacks got overriden by the above, let's put them
-         * back in. Ultimately, I want those things to be split from the
-         * main ppc_md
-         */
-        EARLY_DEBUG_INIT();
-
         DBG("Found, Initializing memory management...\n");
 
         /*
@@ -636,8 +601,7 @@ void __init setup_system(void)
         /*
          * Register early console
          */
-        early_console_initialized = 1;
-        register_console(&udbg_console);
+        register_early_udbg_console();
 
         /* Save unparsed command line copy for /proc/cmdline */
         strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
@@ -657,7 +621,7 @@ void __init setup_system(void)
         smp_release_cpus();
 #endif /* defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES) */
 
-        printk("Starting Linux PPC64 %s\n", UTS_RELEASE);
+        printk("Starting Linux PPC64 %s\n", system_utsname.version);
 
         printk("-----------------------------------------------------\n");
         printk("ppc64_pft_size                = 0x%lx\n", ppc64_pft_size);
diff --git a/arch/ppc64/kernel/sysfs.c b/arch/ppc64/kernel/sysfs.c
index f311ee7c0070..6654b350979c 100644
--- a/arch/ppc64/kernel/sysfs.c
+++ b/arch/ppc64/kernel/sysfs.c
@@ -215,18 +215,23 @@ static void register_cpu_online(unsigned int cpu)
         if (cpu_has_feature(CPU_FTR_MMCRA))
                 sysdev_create_file(s, &attr_mmcra);
 
-        sysdev_create_file(s, &attr_pmc1);
-        sysdev_create_file(s, &attr_pmc2);
-        sysdev_create_file(s, &attr_pmc3);
-        sysdev_create_file(s, &attr_pmc4);
-        sysdev_create_file(s, &attr_pmc5);
-        sysdev_create_file(s, &attr_pmc6);
-
-        if (cpu_has_feature(CPU_FTR_PMC8)) {
+        if (cur_cpu_spec->num_pmcs >= 1)
+                sysdev_create_file(s, &attr_pmc1);
+        if (cur_cpu_spec->num_pmcs >= 2)
+                sysdev_create_file(s, &attr_pmc2);
+        if (cur_cpu_spec->num_pmcs >= 3)
+                sysdev_create_file(s, &attr_pmc3);
+        if (cur_cpu_spec->num_pmcs >= 4)
+                sysdev_create_file(s, &attr_pmc4);
+        if (cur_cpu_spec->num_pmcs >= 5)
+                sysdev_create_file(s, &attr_pmc5);
+        if (cur_cpu_spec->num_pmcs >= 6)
+                sysdev_create_file(s, &attr_pmc6);
+        if (cur_cpu_spec->num_pmcs >= 7)
                 sysdev_create_file(s, &attr_pmc7);
+        if (cur_cpu_spec->num_pmcs >= 8)
                 sysdev_create_file(s, &attr_pmc8);
-        }
-
+  
         if (cpu_has_feature(CPU_FTR_SMT))
                 sysdev_create_file(s, &attr_purr);
 }
@@ -252,17 +257,22 @@ static void unregister_cpu_online(unsigned int cpu)
         if (cpu_has_feature(CPU_FTR_MMCRA))
                 sysdev_remove_file(s, &attr_mmcra);
 
-        sysdev_remove_file(s, &attr_pmc1);
-        sysdev_remove_file(s, &attr_pmc2);
-        sysdev_remove_file(s, &attr_pmc3);
-        sysdev_remove_file(s, &attr_pmc4);
-        sysdev_remove_file(s, &attr_pmc5);
-        sysdev_remove_file(s, &attr_pmc6);
-
-        if (cpu_has_feature(CPU_FTR_PMC8)) {
+        if (cur_cpu_spec->num_pmcs >= 1)
+                sysdev_remove_file(s, &attr_pmc1);
+        if (cur_cpu_spec->num_pmcs >= 2)
+                sysdev_remove_file(s, &attr_pmc2);
+        if (cur_cpu_spec->num_pmcs >= 3)
+                sysdev_remove_file(s, &attr_pmc3);
+        if (cur_cpu_spec->num_pmcs >= 4)
+                sysdev_remove_file(s, &attr_pmc4);
+        if (cur_cpu_spec->num_pmcs >= 5)
+                sysdev_remove_file(s, &attr_pmc5);
+        if (cur_cpu_spec->num_pmcs >= 6)
+                sysdev_remove_file(s, &attr_pmc6);
+        if (cur_cpu_spec->num_pmcs >= 7)
                 sysdev_remove_file(s, &attr_pmc7);
+        if (cur_cpu_spec->num_pmcs >= 8)
                 sysdev_remove_file(s, &attr_pmc8);
-        }
 
         if (cpu_has_feature(CPU_FTR_SMT))
                 sysdev_remove_file(s, &attr_purr);
diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index 1696e1b05bb9..91ef95ccda4f 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -51,7 +51,6 @@
 #include <linux/cpu.h>
 #include <linux/security.h>
 
-#include <asm/segment.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/nvram.h>
diff --git a/arch/ppc64/kernel/udbg.c b/arch/ppc64/kernel/udbg.c
index c0da45540f0f..ed6766e21f5a 100644
--- a/arch/ppc64/kernel/udbg.c
+++ b/arch/ppc64/kernel/udbg.c
@@ -1,5 +1,5 @@
 /*
- * NS16550 Serial Port (uart) debugging stuff.
+ * polling mode stateless debugging stuff, originally for NS16550 Serial Ports
  *
  * c 2001 PPC 64 Team, IBM Corp
  *
@@ -13,249 +13,24 @@
 #define WANT_PPCDBG_TAB /* Only defined here */
 #include <linux/config.h>
 #include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/console.h>
 #include <asm/ppcdebug.h>
 #include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/machdep.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/pmac_feature.h>
 
-extern u8 real_readb(volatile u8 __iomem  *addr);
-extern void real_writeb(u8 data, volatile u8 __iomem *addr);
-
-struct NS16550 {
-        /* this struct must be packed */
-        unsigned char rbr;  /* 0 */
-        unsigned char ier;  /* 1 */
-        unsigned char fcr;  /* 2 */
-        unsigned char lcr;  /* 3 */
-        unsigned char mcr;  /* 4 */
-        unsigned char lsr;  /* 5 */
-        unsigned char msr;  /* 6 */
-        unsigned char scr;  /* 7 */
-};
-
-#define thr rbr
-#define iir fcr
-#define dll rbr
-#define dlm ier
-#define dlab lcr
-
-#define LSR_DR   0x01  /* Data ready */
-#define LSR_OE   0x02  /* Overrun */
-#define LSR_PE   0x04  /* Parity error */
-#define LSR_FE   0x08  /* Framing error */
-#define LSR_BI   0x10  /* Break */
-#define LSR_THRE 0x20  /* Xmit holding register empty */
-#define LSR_TEMT 0x40  /* Xmitter empty */
-#define LSR_ERR  0x80  /* Error */
-
-static volatile struct NS16550 __iomem *udbg_comport;
-
-void udbg_init_uart(void __iomem *comport, unsigned int speed)
-{
-        u16 dll = speed ? (115200 / speed) : 12;
-
-        if (comport) {
-                udbg_comport = (struct NS16550 __iomem *)comport;
-                out_8(&udbg_comport->lcr, 0x00);
-                out_8(&udbg_comport->ier, 0xff);
-                out_8(&udbg_comport->ier, 0x00);
-                out_8(&udbg_comport->lcr, 0x80);        /* Access baud rate */
-                out_8(&udbg_comport->dll, dll & 0xff);  /* 1 = 115200,  2 = 57600,
-                                                           3 = 38400, 12 = 9600 baud */
-                out_8(&udbg_comport->dlm, dll >> 8);    /* dll >> 8 which should be zero
-                                                           for fast rates; */
-                out_8(&udbg_comport->lcr, 0x03);        /* 8 data, 1 stop, no parity */
-                out_8(&udbg_comport->mcr, 0x03);        /* RTS/DTR */
-                out_8(&udbg_comport->fcr ,0x07);        /* Clear & enable FIFOs */
-        }
-}
-
-#ifdef CONFIG_PPC_PMAC
-
-#define SCC_TXRDY       4
-#define SCC_RXRDY       1
-
-static volatile u8 __iomem *sccc;
-static volatile u8 __iomem *sccd;
-
-static unsigned char scc_inittab[] = {
-    13, 0,              /* set baud rate divisor */
-    12, 0,
-    14, 1,              /* baud rate gen enable, src=rtxc */
-    11, 0x50,           /* clocks = br gen */
-    5,  0xea,           /* tx 8 bits, assert DTR & RTS */
-    4,  0x46,           /* x16 clock, 1 stop */
-    3,  0xc1,           /* rx enable, 8 bits */
-};
-
-void udbg_init_scc(struct device_node *np)
-{
-        u32 *reg;
-        unsigned long addr;
-        int i, x;
-
-        if (np == NULL)
-                np = of_find_node_by_name(NULL, "escc");
-        if (np == NULL || np->parent == NULL)
-                return;
-
-        udbg_printf("found SCC...\n");
-        /* Get address within mac-io ASIC */ 
-        reg = (u32 *)get_property(np, "reg", NULL);
-        if (reg == NULL)
-                return;
-        addr = reg[0];
-        udbg_printf("local addr: %lx\n", addr);
-        /* Get address of mac-io PCI itself */
-        reg = (u32 *)get_property(np->parent, "assigned-addresses", NULL);
-        if (reg == NULL)
-                return;
-        addr += reg[2];
-        udbg_printf("final addr: %lx\n", addr);
-
-        /* Setup for 57600 8N1 */
-        addr += 0x20;
-        sccc = (volatile u8 * __iomem) ioremap(addr & PAGE_MASK, PAGE_SIZE) ;
-        sccc += addr & ~PAGE_MASK;
-        sccd = sccc + 0x10;
-
-        udbg_printf("ioremap result sccc: %p\n", sccc);
-        mb();
-
-        for (i = 20000; i != 0; --i)
-                x = in_8(sccc);
-        out_8(sccc, 0x09);              /* reset A or B side */
-        out_8(sccc, 0xc0);
-        for (i = 0; i < sizeof(scc_inittab); ++i)
-                out_8(sccc, scc_inittab[i]);
-
-        ppc_md.udbg_putc = udbg_putc;
-        ppc_md.udbg_getc = udbg_getc;
-        ppc_md.udbg_getc_poll = udbg_getc_poll;
-
-        udbg_puts("Hello World !\n");
-}
-
-#endif /* CONFIG_PPC_PMAC */
-
-#ifdef CONFIG_PPC_PMAC
-static void udbg_real_putc(unsigned char c)
-{
-        while ((real_readb(sccc) & SCC_TXRDY) == 0)
-                ;
-        real_writeb(c, sccd);
-        if (c == '\n')
-                udbg_real_putc('\r');
-}
-
-void udbg_init_pmac_realmode(void)
-{
-        sccc = (volatile u8 __iomem *)0x80013020ul;
-        sccd = (volatile u8 __iomem *)0x80013030ul;
-
-        ppc_md.udbg_putc = udbg_real_putc;
-        ppc_md.udbg_getc = NULL;
-        ppc_md.udbg_getc_poll = NULL;
-}
-#endif /* CONFIG_PPC_PMAC */
-
-#ifdef CONFIG_PPC_MAPLE
-void udbg_maple_real_putc(unsigned char c)
-{
-        if (udbg_comport) {
-                while ((real_readb(&udbg_comport->lsr) & LSR_THRE) == 0)
-                        /* wait for idle */;
-                real_writeb(c, &udbg_comport->thr); eieio();
-                if (c == '\n') {
-                        /* Also put a CR.  This is for convenience. */
-                        while ((real_readb(&udbg_comport->lsr) & LSR_THRE) == 0)
-                                /* wait for idle */;
-                        real_writeb('\r', &udbg_comport->thr); eieio();
-                }
-        }
-}
-
-void udbg_init_maple_realmode(void)
-{
-        udbg_comport = (volatile struct NS16550 __iomem *)0xf40003f8;
-
-        ppc_md.udbg_putc = udbg_maple_real_putc;
-        ppc_md.udbg_getc = NULL;
-        ppc_md.udbg_getc_poll = NULL;
-}
-#endif /* CONFIG_PPC_MAPLE */
-
-void udbg_putc(unsigned char c)
-{
-        if (udbg_comport) {
-                while ((in_8(&udbg_comport->lsr) & LSR_THRE) == 0)
-                        /* wait for idle */;
-                out_8(&udbg_comport->thr, c);
-                if (c == '\n') {
-                        /* Also put a CR.  This is for convenience. */
-                        while ((in_8(&udbg_comport->lsr) & LSR_THRE) == 0)
-                                /* wait for idle */; 
-                        out_8(&udbg_comport->thr, '\r');
-                }
-        }
-#ifdef CONFIG_PPC_PMAC
-        else if (sccc) {
-                while ((in_8(sccc) & SCC_TXRDY) == 0)
-                        ;
-                out_8(sccd,  c);                
-                if (c == '\n')
-                        udbg_putc('\r');
-        }
-#endif /* CONFIG_PPC_PMAC */
-}
-
-int udbg_getc_poll(void)
-{
-        if (udbg_comport) {
-                if ((in_8(&udbg_comport->lsr) & LSR_DR) != 0)
-                        return in_8(&udbg_comport->rbr);
-                else
-                        return -1;
-        }
-#ifdef CONFIG_PPC_PMAC
-        else if (sccc) {
-                if ((in_8(sccc) & SCC_RXRDY) != 0)
-                        return in_8(sccd);
-                else
-                        return -1;
-        }
-#endif /* CONFIG_PPC_PMAC */
-        return -1;
-}
-
-unsigned char udbg_getc(void)
-{
-        if (udbg_comport) {
-                while ((in_8(&udbg_comport->lsr) & LSR_DR) == 0)
-                        /* wait for char */;
-                return in_8(&udbg_comport->rbr);
-        }
-#ifdef CONFIG_PPC_PMAC
-        else if (sccc) {
-                while ((in_8(sccc) & SCC_RXRDY) == 0)
-                        ;
-                return in_8(sccd);
-        }
-#endif /* CONFIG_PPC_PMAC */
-        return 0;
-}
+void (*udbg_putc)(unsigned char c);
+unsigned char (*udbg_getc)(void);
+int (*udbg_getc_poll)(void);
 
+/* udbg library, used by xmon et al */
 void udbg_puts(const char *s)
 {
-        if (ppc_md.udbg_putc) {
+        if (udbg_putc) {
                 char c;
 
                 if (s && *s != '\0') {
                         while ((c = *s++) != '\0')
-                                ppc_md.udbg_putc(c);
+                                udbg_putc(c);
                 }
         }
 #if 0
@@ -270,12 +45,12 @@ int udbg_write(const char *s, int n)
         int remain = n;
         char c;
 
-        if (!ppc_md.udbg_putc)
+        if (!udbg_putc)
                 return 0;
 
         if (s && *s != '\0') {
                 while (((c = *s++) != '\0') && (remain-- > 0)) {
-                        ppc_md.udbg_putc(c);
+                        udbg_putc(c);
                 }
         }
 
@@ -287,12 +62,12 @@ int udbg_read(char *buf, int buflen)
         char c, *p = buf;
         int i;
 
-        if (!ppc_md.udbg_getc)
+        if (!udbg_getc)
                 return 0;
 
         for (i = 0; i < buflen; ++i) {
                 do {
-                        c = ppc_md.udbg_getc();
+                        c = udbg_getc();
                 } while (c == 0x11 || c == 0x13);
                 if (c == 0)
                         break;
@@ -302,11 +77,6 @@ int udbg_read(char *buf, int buflen)
         return i;
 }
 
-void udbg_console_write(struct console *con, const char *s, unsigned int n)
-{
-        udbg_write(s, n);
-}
-
 #define UDBG_BUFSIZE 256
 void udbg_printf(const char *fmt, ...)
 {
@@ -319,6 +89,10 @@ void udbg_printf(const char *fmt, ...)
         va_end(args);
 }
 
+/* PPCDBG stuff */
+
+u64 ppc64_debug_switch;
+
 /* Special print used by PPCDBG() macro */
 void udbg_ppcdbg(unsigned long debug_flags, const char *fmt, ...)
 {
@@ -358,3 +132,43 @@ unsigned long udbg_ifdebug(unsigned long flags)
 {
         return (flags & ppc64_debug_switch);
 }
+
+/*
+ * Initialize the PPCDBG state.  Called before relocation has been enabled.
+ */
+void __init ppcdbg_initialize(void)
+{
+        ppc64_debug_switch = PPC_DEBUG_DEFAULT; /* | PPCDBG_BUSWALK | */
+        /* PPCDBG_PHBINIT | PPCDBG_MM | PPCDBG_MMINIT | PPCDBG_TCEINIT | PPCDBG_TCE */;
+}
+
+/*
+ * Early boot console based on udbg
+ */
+static void udbg_console_write(struct console *con, const char *s,
+                unsigned int n)
+{
+        udbg_write(s, n);
+}
+
+static struct console udbg_console = {
+        .name   = "udbg",
+        .write  = udbg_console_write,
+        .flags  = CON_PRINTBUFFER,
+        .index  = -1,
+};
+
+void __init disable_early_printk(void)
+{
+        unregister_console(&udbg_console);
+}
+
+/* called by setup_system */
+void register_early_udbg_console(void)
+{
+        register_console(&udbg_console);
+}
+
+#if 0   /* if you want to use this as a regular output console */
+console_initcall(register_udbg_console);
+#endif
diff --git a/arch/ppc64/kernel/udbg_16550.c b/arch/ppc64/kernel/udbg_16550.c
new file mode 100644
index 000000000000..9313574ab935
--- /dev/null
+++ b/arch/ppc64/kernel/udbg_16550.c
@@ -0,0 +1,123 @@
+/*
+ * udbg for for NS16550 compatable serial ports
+ *
+ * Copyright (C) 2001-2005 PPC 64 Team, IBM Corp
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+#include <linux/config.h>
+#include <linux/types.h>
+#include <asm/udbg.h>
+#include <asm/io.h>
+
+extern u8 real_readb(volatile u8 __iomem  *addr);
+extern void real_writeb(u8 data, volatile u8 __iomem *addr);
+
+struct NS16550 {
+        /* this struct must be packed */
+        unsigned char rbr;  /* 0 */
+        unsigned char ier;  /* 1 */
+        unsigned char fcr;  /* 2 */
+        unsigned char lcr;  /* 3 */
+        unsigned char mcr;  /* 4 */
+        unsigned char lsr;  /* 5 */
+        unsigned char msr;  /* 6 */
+        unsigned char scr;  /* 7 */
+};
+
+#define thr rbr
+#define iir fcr
+#define dll rbr
+#define dlm ier
+#define dlab lcr
+
+#define LSR_DR   0x01  /* Data ready */
+#define LSR_OE   0x02  /* Overrun */
+#define LSR_PE   0x04  /* Parity error */
+#define LSR_FE   0x08  /* Framing error */
+#define LSR_BI   0x10  /* Break */
+#define LSR_THRE 0x20  /* Xmit holding register empty */
+#define LSR_TEMT 0x40  /* Xmitter empty */
+#define LSR_ERR  0x80  /* Error */
+
+static volatile struct NS16550 __iomem *udbg_comport;
+
+static void udbg_550_putc(unsigned char c)
+{
+        if (udbg_comport) {
+                while ((in_8(&udbg_comport->lsr) & LSR_THRE) == 0)
+                        /* wait for idle */;
+                out_8(&udbg_comport->thr, c);
+                if (c == '\n')
+                        udbg_550_putc('\r');
+        }
+}
+
+static int udbg_550_getc_poll(void)
+{
+        if (udbg_comport) {
+                if ((in_8(&udbg_comport->lsr) & LSR_DR) != 0)
+                        return in_8(&udbg_comport->rbr);
+                else
+                        return -1;
+        }
+        return -1;
+}
+
+static unsigned char udbg_550_getc(void)
+{
+        if (udbg_comport) {
+                while ((in_8(&udbg_comport->lsr) & LSR_DR) == 0)
+                        /* wait for char */;
+                return in_8(&udbg_comport->rbr);
+        }
+        return 0;
+}
+
+void udbg_init_uart(void __iomem *comport, unsigned int speed)
+{
+        u16 dll = speed ? (115200 / speed) : 12;
+
+        if (comport) {
+                udbg_comport = (struct NS16550 __iomem *)comport;
+                out_8(&udbg_comport->lcr, 0x00);
+                out_8(&udbg_comport->ier, 0xff);
+                out_8(&udbg_comport->ier, 0x00);
+                out_8(&udbg_comport->lcr, 0x80);        /* Access baud rate */
+                out_8(&udbg_comport->dll, dll & 0xff);  /* 1 = 115200,  2 = 57600,
+                                                           3 = 38400, 12 = 9600 baud */
+                out_8(&udbg_comport->dlm, dll >> 8);    /* dll >> 8 which should be zero
+                                                           for fast rates; */
+                out_8(&udbg_comport->lcr, 0x03);        /* 8 data, 1 stop, no parity */
+                out_8(&udbg_comport->mcr, 0x03);        /* RTS/DTR */
+                out_8(&udbg_comport->fcr ,0x07);        /* Clear & enable FIFOs */
+                udbg_putc = udbg_550_putc;
+                udbg_getc = udbg_550_getc;
+                udbg_getc_poll = udbg_550_getc_poll;
+        }
+}
+
+#ifdef CONFIG_PPC_MAPLE
+void udbg_maple_real_putc(unsigned char c)
+{
+        if (udbg_comport) {
+                while ((real_readb(&udbg_comport->lsr) & LSR_THRE) == 0)
+                        /* wait for idle */;
+                real_writeb(c, &udbg_comport->thr); eieio();
+                if (c == '\n')
+                        udbg_maple_real_putc('\r');
+        }
+}
+
+void udbg_init_maple_realmode(void)
+{
+        udbg_comport = (volatile struct NS16550 __iomem *)0xf40003f8;
+
+        udbg_putc = udbg_maple_real_putc;
+        udbg_getc = NULL;
+        udbg_getc_poll = NULL;
+}
+#endif /* CONFIG_PPC_MAPLE */
diff --git a/arch/ppc64/kernel/udbg_scc.c b/arch/ppc64/kernel/udbg_scc.c
new file mode 100644
index 000000000000..c47fd6c63531
--- /dev/null
+++ b/arch/ppc64/kernel/udbg_scc.c
@@ -0,0 +1,136 @@
+/*
+ * udbg for for zilog scc ports as found on Apple PowerMacs
+ *
+ * Copyright (C) 2001-2005 PPC 64 Team, IBM Corp
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+#include <linux/config.h>
+#include <linux/types.h>
+#include <asm/udbg.h>
+#include <asm/processor.h>
+#include <asm/naca.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/pmac_feature.h>
+
+extern u8 real_readb(volatile u8 __iomem  *addr);
+extern void real_writeb(u8 data, volatile u8 __iomem *addr);
+
+#define SCC_TXRDY       4
+#define SCC_RXRDY       1
+
+static volatile u8 __iomem *sccc;
+static volatile u8 __iomem *sccd;
+
+static void udbg_scc_putc(unsigned char c)
+{
+        if (sccc) {
+                while ((in_8(sccc) & SCC_TXRDY) == 0)
+                        ;
+                out_8(sccd,  c);
+                if (c == '\n')
+                        udbg_scc_putc('\r');
+        }
+}
+
+static int udbg_scc_getc_poll(void)
+{
+        if (sccc) {
+                if ((in_8(sccc) & SCC_RXRDY) != 0)
+                        return in_8(sccd);
+                else
+                        return -1;
+        }
+        return -1;
+}
+
+static unsigned char udbg_scc_getc(void)
+{
+        if (sccc) {
+                while ((in_8(sccc) & SCC_RXRDY) == 0)
+                        ;
+                return in_8(sccd);
+        }
+        return 0;
+}
+
+static unsigned char scc_inittab[] = {
+    13, 0,              /* set baud rate divisor */
+    12, 0,
+    14, 1,              /* baud rate gen enable, src=rtxc */
+    11, 0x50,           /* clocks = br gen */
+    5,  0xea,           /* tx 8 bits, assert DTR & RTS */
+    4,  0x46,           /* x16 clock, 1 stop */
+    3,  0xc1,           /* rx enable, 8 bits */
+};
+
+void udbg_init_scc(struct device_node *np)
+{
+        u32 *reg;
+        unsigned long addr;
+        int i, x;
+
+        if (np == NULL)
+                np = of_find_node_by_name(NULL, "escc");
+        if (np == NULL || np->parent == NULL)
+                return;
+
+        udbg_printf("found SCC...\n");
+        /* Get address within mac-io ASIC */
+        reg = (u32 *)get_property(np, "reg", NULL);
+        if (reg == NULL)
+                return;
+        addr = reg[0];
+        udbg_printf("local addr: %lx\n", addr);
+        /* Get address of mac-io PCI itself */
+        reg = (u32 *)get_property(np->parent, "assigned-addresses", NULL);
+        if (reg == NULL)
+                return;
+        addr += reg[2];
+        udbg_printf("final addr: %lx\n", addr);
+
+        /* Setup for 57600 8N1 */
+        addr += 0x20;
+        sccc = (volatile u8 * __iomem) ioremap(addr & PAGE_MASK, PAGE_SIZE) ;
+        sccc += addr & ~PAGE_MASK;
+        sccd = sccc + 0x10;
+
+        udbg_printf("ioremap result sccc: %p\n", sccc);
+        mb();
+
+        for (i = 20000; i != 0; --i)
+                x = in_8(sccc);
+        out_8(sccc, 0x09);              /* reset A or B side */
+        out_8(sccc, 0xc0);
+        for (i = 0; i < sizeof(scc_inittab); ++i)
+                out_8(sccc, scc_inittab[i]);
+
+        udbg_putc = udbg_scc_putc;
+        udbg_getc = udbg_scc_getc;
+        udbg_getc_poll = udbg_scc_getc_poll;
+
+        udbg_puts("Hello World !\n");
+}
+
+static void udbg_real_scc_putc(unsigned char c)
+{
+        while ((real_readb(sccc) & SCC_TXRDY) == 0)
+                ;
+        real_writeb(c, sccd);
+        if (c == '\n')
+                udbg_real_scc_putc('\r');
+}
+
+void udbg_init_pmac_realmode(void)
+{
+        sccc = (volatile u8 __iomem *)0x80013020ul;
+        sccd = (volatile u8 __iomem *)0x80013030ul;
+
+        udbg_putc = udbg_real_scc_putc;
+        udbg_getc = NULL;
+        udbg_getc_poll = NULL;
+}
diff --git a/arch/ppc64/mm/hugetlbpage.c b/arch/ppc64/mm/hugetlbpage.c
index e7833c80eb68..338771ec70d7 100644
--- a/arch/ppc64/mm/hugetlbpage.c
+++ b/arch/ppc64/mm/hugetlbpage.c
@@ -144,7 +144,8 @@ static void flush_low_segments(void *parm)
         for (i = 0; i < NUM_LOW_AREAS; i++) {
                 if (! (areas & (1U << i)))
                         continue;
-                asm volatile("slbie %0" : : "r" (i << SID_SHIFT));
+                asm volatile("slbie %0"
+                             : : "r" ((i << SID_SHIFT) | SLBIE_C));
         }
 
         asm volatile("isync" : : : "memory");
@@ -164,7 +165,8 @@ static void flush_high_segments(void *parm)
                         continue;
                 for (j = 0; j < (1UL << (HTLB_AREA_SHIFT-SID_SHIFT)); j++)
                         asm volatile("slbie %0"
-                                     :: "r" ((i << HTLB_AREA_SHIFT) + (j << SID_SHIFT)));
+                                     :: "r" (((i << HTLB_AREA_SHIFT)
+                                             + (j << SID_SHIFT)) | SLBIE_C));
         }
 
         asm volatile("isync" : : : "memory");
diff --git a/arch/ppc64/mm/init.c b/arch/ppc64/mm/init.c
index b3b1e9c1770a..a14ab87df491 100644
--- a/arch/ppc64/mm/init.c
+++ b/arch/ppc64/mm/init.c
@@ -392,6 +392,7 @@ void free_initmem(void)
 
         addr = (unsigned long)__init_begin;
         for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
+                memset((void *)addr, 0xcc, PAGE_SIZE);
                 ClearPageReserved(virt_to_page(addr));
                 set_page_count(virt_to_page(addr), 1);
                 free_page(addr);
diff --git a/arch/ppc64/mm/slb.c b/arch/ppc64/mm/slb.c
index 244150a0bc18..0473953f6a37 100644
--- a/arch/ppc64/mm/slb.c
+++ b/arch/ppc64/mm/slb.c
@@ -87,8 +87,8 @@ void switch_slb(struct task_struct *tsk, struct mm_struct *mm)
                 int i;
                 asm volatile("isync" : : : "memory");
                 for (i = 0; i < offset; i++) {
-                        esid_data = (unsigned long)get_paca()->slb_cache[i]
-                                << SID_SHIFT;
+                        esid_data = ((unsigned long)get_paca()->slb_cache[i]
+                                << SID_SHIFT) | SLBIE_C;
                         asm volatile("slbie %0" : : "r" (esid_data));
                 }
                 asm volatile("isync" : : : "memory");
diff --git a/arch/ppc64/oprofile/common.c b/arch/ppc64/oprofile/common.c
index 4acd1a424933..e5f572710aa0 100644
--- a/arch/ppc64/oprofile/common.c
+++ b/arch/ppc64/oprofile/common.c
@@ -16,11 +16,9 @@
 #include <asm/ptrace.h>
 #include <asm/system.h>
 #include <asm/pmc.h>
+#include <asm/cputable.h>
+#include <asm/oprofile_impl.h>
 
-#include "op_impl.h"
-
-extern struct op_ppc64_model op_model_rs64;
-extern struct op_ppc64_model op_model_power4;
 static struct op_ppc64_model *model;
 
 static struct op_counter_config ctr[OP_MAX_COUNTER];
@@ -123,53 +121,13 @@ static int op_ppc64_create_files(struct super_block *sb, struct dentry *root)
 
 int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
-        unsigned int pvr;
-
-        pvr = mfspr(SPRN_PVR);
-
-        switch (PVR_VER(pvr)) {
-                case PV_630:
-                case PV_630p:
-                        model = &op_model_rs64;
-                        model->num_counters = 8;
-                        ops->cpu_type = "ppc64/power3";
-                        break;
-
-                case PV_NORTHSTAR:
-                case PV_PULSAR:
-                case PV_ICESTAR:
-                case PV_SSTAR:
-                        model = &op_model_rs64;
-                        model->num_counters = 8;
-                        ops->cpu_type = "ppc64/rs64";
-                        break;
-
-                case PV_POWER4:
-                case PV_POWER4p:
-                        model = &op_model_power4;
-                        model->num_counters = 8;
-                        ops->cpu_type = "ppc64/power4";
-                        break;
-
-                case PV_970:
-                case PV_970FX:
-                case PV_970MP:
-                        model = &op_model_power4;
-                        model->num_counters = 8;
-                        ops->cpu_type = "ppc64/970";
-                        break;
-
-                case PV_POWER5:
-                case PV_POWER5p:
-                        model = &op_model_power4;
-                        model->num_counters = 6;
-                        ops->cpu_type = "ppc64/power5";
-                        break;
-
-                default:
-                        return -ENODEV;
-        }
+        if (!cur_cpu_spec->oprofile_model || !cur_cpu_spec->oprofile_cpu_type)
+                return -ENODEV;
+
+        model = cur_cpu_spec->oprofile_model;
+        model->num_counters = cur_cpu_spec->num_pmcs;
 
+        ops->cpu_type = cur_cpu_spec->oprofile_cpu_type;
         ops->create_files = op_ppc64_create_files;
         ops->setup = op_ppc64_setup;
         ops->shutdown = op_ppc64_shutdown;
diff --git a/arch/ppc64/oprofile/op_impl.h b/arch/ppc64/oprofile/op_impl.h
deleted file mode 100644
index 7fa7eaabc035..000000000000
--- a/arch/ppc64/oprofile/op_impl.h
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- * Based on alpha version.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef OP_IMPL_H
-#define OP_IMPL_H 1
-
-#define OP_MAX_COUNTER 8
-
-/* Per-counter configuration as set via oprofilefs.  */
-struct op_counter_config {
-        unsigned long valid;
-        unsigned long enabled;
-        unsigned long event;
-        unsigned long count;
-        unsigned long kernel;
-        /* We dont support per counter user/kernel selection */
-        unsigned long user;
-        unsigned long unit_mask;
-};
-
-/* System-wide configuration as set via oprofilefs.  */
-struct op_system_config {
-        unsigned long mmcr0;
-        unsigned long mmcr1;
-        unsigned long mmcra;
-        unsigned long enable_kernel;
-        unsigned long enable_user;
-        unsigned long backtrace_spinlocks;
-};
-
-/* Per-arch configuration */
-struct op_ppc64_model {
-        void (*reg_setup) (struct op_counter_config *,
-                           struct op_system_config *,
-                           int num_counters);
-        void (*cpu_setup) (void *);
-        void (*start) (struct op_counter_config *);
-        void (*stop) (void);
-        void (*handle_interrupt) (struct pt_regs *,
-                                  struct op_counter_config *);
-        int num_counters;
-};
-
-static inline unsigned int ctr_read(unsigned int i)
-{
-        switch(i) {
-        case 0:
-                return mfspr(SPRN_PMC1);
-        case 1:
-                return mfspr(SPRN_PMC2);
-        case 2:
-                return mfspr(SPRN_PMC3);
-        case 3:
-                return mfspr(SPRN_PMC4);
-        case 4:
-                return mfspr(SPRN_PMC5);
-        case 5:
-                return mfspr(SPRN_PMC6);
-        case 6:
-                return mfspr(SPRN_PMC7);
-        case 7:
-                return mfspr(SPRN_PMC8);
-        default:
-                return 0;
-        }
-}
-
-static inline void ctr_write(unsigned int i, unsigned int val)
-{
-        switch(i) {
-        case 0:
-                mtspr(SPRN_PMC1, val);
-                break;
-        case 1:
-                mtspr(SPRN_PMC2, val);
-                break;
-        case 2:
-                mtspr(SPRN_PMC3, val);
-                break;
-        case 3:
-                mtspr(SPRN_PMC4, val);
-                break;
-        case 4:
-                mtspr(SPRN_PMC5, val);
-                break;
-        case 5:
-                mtspr(SPRN_PMC6, val);
-                break;
-        case 6:
-                mtspr(SPRN_PMC7, val);
-                break;
-        case 7:
-                mtspr(SPRN_PMC8, val);
-                break;
-        default:
-                break;
-        }
-}
-
-#endif
diff --git a/arch/ppc64/oprofile/op_model_power4.c b/arch/ppc64/oprofile/op_model_power4.c
index 3d103d66870d..32b2bb5625fe 100644
--- a/arch/ppc64/oprofile/op_model_power4.c
+++ b/arch/ppc64/oprofile/op_model_power4.c
@@ -16,14 +16,12 @@
 #include <asm/cputable.h>
 #include <asm/systemcfg.h>
 #include <asm/rtas.h>
+#include <asm/oprofile_impl.h>
 
 #define dbg(args...)
 
-#include "op_impl.h"
-
 static unsigned long reset_value[OP_MAX_COUNTER];
 
-static int num_counters;
 static int oprofile_running;
 static int mmcra_has_sihv;
 
@@ -45,8 +43,6 @@ static void power4_reg_setup(struct op_counter_config *ctr,
 {
         int i;
 
-        num_counters = num_ctrs;
-
         /*
          * SIHV / SIPR bits are only implemented on POWER4+ (GQ) and above.
          * However we disable it on all POWER4 until we verify it works
@@ -68,7 +64,7 @@ static void power4_reg_setup(struct op_counter_config *ctr,
 
         backtrace_spinlocks = sys->backtrace_spinlocks;
 
-        for (i = 0; i < num_counters; ++i)
+        for (i = 0; i < cur_cpu_spec->num_pmcs; ++i)
                 reset_value[i] = 0x80000000UL - ctr[i].count;
 
         /* setup user and kernel profiling */
@@ -121,7 +117,7 @@ static void power4_start(struct op_counter_config *ctr)
         /* set the PMM bit (see comment below) */
         mtmsrd(mfmsr() | MSR_PMM);
 
-        for (i = 0; i < num_counters; ++i) {
+        for (i = 0; i < cur_cpu_spec->num_pmcs; ++i) {
                 if (ctr[i].enabled) {
                         ctr_write(i, reset_value[i]);
                 } else {
@@ -272,7 +268,7 @@ static void power4_handle_interrupt(struct pt_regs *regs,
         /* set the PMM bit (see comment below) */
         mtmsrd(mfmsr() | MSR_PMM);
 
-        for (i = 0; i < num_counters; ++i) {
+        for (i = 0; i < cur_cpu_spec->num_pmcs; ++i) {
                 val = ctr_read(i);
                 if (val < 0) {
                         if (oprofile_running && ctr[i].enabled) {
diff --git a/arch/ppc64/oprofile/op_model_rs64.c b/arch/ppc64/oprofile/op_model_rs64.c
index bcec506c266a..08c5b333f5c4 100644
--- a/arch/ppc64/oprofile/op_model_rs64.c
+++ b/arch/ppc64/oprofile/op_model_rs64.c
@@ -14,11 +14,10 @@
 #include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/cputable.h>
+#include <asm/oprofile_impl.h>
 
 #define dbg(args...)
 
-#include "op_impl.h"
-
 static void ctrl_write(unsigned int i, unsigned int val)
 {
         unsigned int tmp = 0;
diff --git a/arch/ppc64/xmon/start.c b/arch/ppc64/xmon/start.c
index f86b584acd76..e50c158191e1 100644
--- a/arch/ppc64/xmon/start.c
+++ b/arch/ppc64/xmon/start.c
@@ -61,7 +61,9 @@ xmon_read(void *handle, void *ptr, int nb)
 int
 xmon_read_poll(void)
 {
-        return udbg_getc_poll();
+        if (udbg_getc_poll)
+                return udbg_getc_poll();
+        return -1;
 }
  
 FILE *xmon_stdin;