[patch 1/4] powerpc: Fix typo in pgtable-ppc64.h

[patch 1/4] powerpc: Fix typo in pgtable-ppc64.h

[Geoff Levand]

Fix a minor comment typo in pgtable-ppc64.h.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
---
 arch/powerpc/include/asm/pgtable-ppc64.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/include/asm/pgtable-ppc64.h
+++ b/arch/powerpc/include/asm/pgtable-ppc64.h
@@ -100,7 +100,7 @@
 
 #define _PAGE_WRENABLE	(_PAGE_RW | _PAGE_DIRTY)
 
-/* __pgprot defined in arch/powerpc/incliude/asm/page.h */
+/* __pgprot defined in arch/powerpc/include/asm/page.h */
 #define PAGE_NONE	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED)
 
 #define PAGE_SHARED	__pgprot(_PAGE_BASE | _PAGE_RW | _PAGE_USER)

-- 

[patch 2/4] powerpc/ps3: Update ps3_defconfig

[Geoff Levand]

Update ps3_defconfig.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
---
 arch/powerpc/configs/ps3_defconfig |  153 ++++++++++++++++++++++++++++++++-----
 1 file changed, 133 insertions(+), 20 deletions(-)

--- a/arch/powerpc/configs/ps3_defconfig
+++ b/arch/powerpc/configs/ps3_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.26
-# Wed Jul 16 13:59:24 2008
+# Linux kernel version: 2.6.27-rc3
+# Wed Aug 20 08:16:53 2008
 #
 CONFIG_PPC64=y
 
@@ -92,7 +92,6 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL=y
 # CONFIG_EMBEDDED is not set
 CONFIG_SYSCTL_SYSCALL=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_KALLSYMS=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_KALLSYMS_EXTRA_PASS=y
@@ -118,11 +117,16 @@ CONFIG_PROFILING=y
 CONFIG_OPROFILE=m
 CONFIG_HAVE_OPROFILE=y
 # CONFIG_KPROBES is not set
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_HAVE_IOREMAP_PROT=y
 CONFIG_HAVE_KPROBES=y
 CONFIG_HAVE_KRETPROBES=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
 CONFIG_HAVE_DMA_ATTRS=y
 CONFIG_USE_GENERIC_SMP_HELPERS=y
+# CONFIG_HAVE_CLK is not set
 CONFIG_PROC_PAGE_MONITOR=y
+# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
 CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -179,6 +183,7 @@ CONFIG_PS3_STORAGE=y
 CONFIG_PS3_DISK=y
 CONFIG_PS3_ROM=y
 CONFIG_PS3_FLASH=y
+CONFIG_OPROFILE_PS3=y
 CONFIG_PS3_LPM=m
 CONFIG_PPC_CELL=y
 # CONFIG_PPC_CELL_NATIVE is not set
@@ -218,7 +223,7 @@ CONFIG_HZ_250=y
 # CONFIG_HZ_300 is not set
 # CONFIG_HZ_1000 is not set
 CONFIG_HZ=250
-# CONFIG_SCHED_HRTICK is not set
+CONFIG_SCHED_HRTICK=y
 CONFIG_PREEMPT_NONE=y
 # CONFIG_PREEMPT_VOLUNTARY is not set
 # CONFIG_PREEMPT is not set
@@ -252,8 +257,10 @@ CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
 # CONFIG_SPARSEMEM_VMEMMAP is not set
 CONFIG_MEMORY_HOTPLUG=y
 CONFIG_MEMORY_HOTPLUG_SPARSE=y
+# CONFIG_MEMORY_HOTREMOVE is not set
 CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
+CONFIG_MIGRATION=y
 CONFIG_RESOURCES_64BIT=y
 CONFIG_ZONE_DMA_FLAG=1
 CONFIG_BOUNCE=y
@@ -276,19 +283,17 @@ CONFIG_ISA_DMA_API=y
 #
 CONFIG_ZONE_DMA=y
 CONFIG_GENERIC_ISA_DMA=y
+CONFIG_PPC_PCI_CHOICE=y
 # CONFIG_PCI is not set
 # CONFIG_PCI_DOMAINS is not set
 # CONFIG_PCI_SYSCALL is not set
 # CONFIG_ARCH_SUPPORTS_MSI is not set
 # CONFIG_PCCARD is not set
 # CONFIG_HAS_RAPIDIO is not set
+# CONFIG_RELOCATABLE is not set
 CONFIG_PAGE_OFFSET=0xc000000000000000
 CONFIG_KERNEL_START=0xc000000000000000
 CONFIG_PHYSICAL_START=0x00000000
-
-#
-# Networking
-#
 CONFIG_NET=y
 
 #
@@ -399,9 +404,22 @@ CONFIG_BT_HCIUSB_SCO=y
 #
 # Wireless
 #
-# CONFIG_CFG80211 is not set
+CONFIG_CFG80211=m
+CONFIG_NL80211=y
 CONFIG_WIRELESS_EXT=y
-# CONFIG_MAC80211 is not set
+# CONFIG_WIRELESS_EXT_SYSFS is not set
+CONFIG_MAC80211=m
+
+#
+# Rate control algorithm selection
+#
+CONFIG_MAC80211_RC_PID=y
+CONFIG_MAC80211_RC_DEFAULT_PID=y
+CONFIG_MAC80211_RC_DEFAULT="pid"
+# CONFIG_MAC80211_MESH is not set
+# CONFIG_MAC80211_LEDS is not set
+# CONFIG_MAC80211_DEBUGFS is not set
+# CONFIG_MAC80211_DEBUG_MENU is not set
 CONFIG_IEEE80211=m
 # CONFIG_IEEE80211_DEBUG is not set
 CONFIG_IEEE80211_CRYPT_WEP=m
@@ -420,14 +438,79 @@ CONFIG_IEEE80211_CRYPT_TKIP=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=m
+CONFIG_FW_LOADER=y
 # CONFIG_FIRMWARE_IN_KERNEL is not set
 CONFIG_EXTRA_FIRMWARE=""
 # CONFIG_DEBUG_DRIVER is not set
 # CONFIG_DEBUG_DEVRES is not set
 # CONFIG_SYS_HYPERVISOR is not set
 # CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
+CONFIG_MTD=y
+CONFIG_MTD_DEBUG=y
+CONFIG_MTD_DEBUG_VERBOSE=0
+# CONFIG_MTD_CONCAT is not set
+# CONFIG_MTD_PARTITIONS is not set
+
+#
+# User Modules And Translation Layers
+#
+# CONFIG_MTD_CHAR is not set
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+CONFIG_MTD_PS3VRAM=y
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
 CONFIG_OF_DEVICE=y
 # CONFIG_PARPORT is not set
 CONFIG_BLK_DEV=y
@@ -443,6 +526,7 @@ CONFIG_BLK_DEV_RAM_SIZE=65535
 # CONFIG_BLK_DEV_XIP is not set
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
+# CONFIG_BLK_DEV_HD is not set
 CONFIG_MISC_DEVICES=y
 # CONFIG_EEPROM_93CX6 is not set
 # CONFIG_ENCLOSURE_SERVICES is not set
@@ -494,7 +578,6 @@ CONFIG_SCSI_WAIT_SCAN=m
 # CONFIG_MD is not set
 # CONFIG_MACINTOSH_DRIVERS is not set
 CONFIG_NETDEVICES=y
-# CONFIG_NETDEVICES_MULTIQUEUE is not set
 # CONFIG_DUMMY is not set
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
@@ -510,9 +593,9 @@ CONFIG_MII=m
 # CONFIG_IBM_NEW_EMAC_EMAC4 is not set
 # CONFIG_B44 is not set
 CONFIG_NETDEV_1000=y
-# CONFIG_E1000E_ENABLED is not set
 CONFIG_GELIC_NET=y
 CONFIG_GELIC_WIRELESS=y
+CONFIG_GELIC_WIRELESS_OLD_PSK_INTERFACE=y
 # CONFIG_NETDEV_10000 is not set
 
 #
@@ -523,8 +606,22 @@ CONFIG_WLAN_80211=y
 # CONFIG_LIBERTAS is not set
 # CONFIG_USB_ZD1201 is not set
 # CONFIG_USB_NET_RNDIS_WLAN is not set
+# CONFIG_RTL8187 is not set
+# CONFIG_MAC80211_HWSIM is not set
+# CONFIG_P54_COMMON is not set
 # CONFIG_IWLWIFI_LEDS is not set
 # CONFIG_HOSTAP is not set
+# CONFIG_B43 is not set
+# CONFIG_B43LEGACY is not set
+CONFIG_ZD1211RW=m
+# CONFIG_ZD1211RW_DEBUG is not set
+CONFIG_RT2X00=m
+CONFIG_RT2X00_LIB=m
+CONFIG_RT2X00_LIB_USB=m
+CONFIG_RT2X00_LIB_FIRMWARE=y
+# CONFIG_RT2500USB is not set
+CONFIG_RT73USB=m
+# CONFIG_RT2X00_DEBUG is not set
 
 #
 # USB Network Adapters
@@ -622,6 +719,7 @@ CONFIG_INPUT_JOYSTICK=y
 # Character devices
 #
 CONFIG_VT=y
+CONFIG_CONSOLE_TRANSLATIONS=y
 CONFIG_VT_CONSOLE=y
 CONFIG_HW_CONSOLE=y
 CONFIG_VT_HW_CONSOLE_BINDING=y
@@ -647,6 +745,8 @@ CONFIG_LEGACY_PTY_COUNT=16
 # CONFIG_TCG_TPM is not set
 # CONFIG_I2C is not set
 # CONFIG_SPI is not set
+CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
+# CONFIG_GPIOLIB is not set
 # CONFIG_W1 is not set
 # CONFIG_POWER_SUPPLY is not set
 # CONFIG_HWMON is not set
@@ -663,8 +763,10 @@ CONFIG_SSB_POSSIBLE=y
 #
 # Multifunction device drivers
 #
+# CONFIG_MFD_CORE is not set
 # CONFIG_MFD_SM501 is not set
 # CONFIG_HTC_PASIC3 is not set
+# CONFIG_MFD_TMIO is not set
 
 #
 # Multimedia devices
@@ -796,6 +898,7 @@ CONFIG_USB_DEVICEFS=y
 # CONFIG_USB_DYNAMIC_MINORS is not set
 CONFIG_USB_SUSPEND=y
 # CONFIG_USB_OTG is not set
+CONFIG_USB_MON=y
 
 #
 # USB Host Controller Drivers
@@ -817,6 +920,10 @@ CONFIG_USB_OHCI_LITTLE_ENDIAN=y
 # CONFIG_USB_R8A66597_HCD is not set
 
 #
+# Enable Host or Gadget support to see Inventra options
+#
+
+#
 # USB Device Class drivers
 #
 # CONFIG_USB_ACM is not set
@@ -843,6 +950,7 @@ CONFIG_USB_STORAGE=m
 # CONFIG_USB_STORAGE_ALAUDA is not set
 # CONFIG_USB_STORAGE_ONETOUCH is not set
 # CONFIG_USB_STORAGE_KARMA is not set
+# CONFIG_USB_STORAGE_SIERRA is not set
 # CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
 # CONFIG_USB_LIBUSUAL is not set
 
@@ -851,7 +959,6 @@ CONFIG_USB_STORAGE=m
 #
 # CONFIG_USB_MDC800 is not set
 # CONFIG_USB_MICROTEK is not set
-CONFIG_USB_MON=y
 
 #
 # USB port drivers
@@ -864,7 +971,6 @@ CONFIG_USB_MON=y
 # CONFIG_USB_EMI62 is not set
 # CONFIG_USB_EMI26 is not set
 # CONFIG_USB_ADUTUX is not set
-# CONFIG_USB_AUERSWALD is not set
 # CONFIG_USB_RIO500 is not set
 # CONFIG_USB_LEGOTOWER is not set
 # CONFIG_USB_LCD is not set
@@ -998,9 +1104,11 @@ CONFIG_HUGETLB_PAGE=y
 # CONFIG_BEFS_FS is not set
 # CONFIG_BFS_FS is not set
 # CONFIG_EFS_FS is not set
+# CONFIG_JFFS2_FS is not set
 # CONFIG_CRAMFS is not set
 # CONFIG_VXFS_FS is not set
 # CONFIG_MINIX_FS is not set
+# CONFIG_OMFS_FS is not set
 # CONFIG_HPFS_FS is not set
 # CONFIG_QNX4FS_FS is not set
 # CONFIG_ROMFS_FS is not set
@@ -1011,14 +1119,13 @@ CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 # CONFIG_NFS_V3_ACL is not set
 CONFIG_NFS_V4=y
-# CONFIG_NFSD is not set
 CONFIG_ROOT_NFS=y
+# CONFIG_NFSD is not set
 CONFIG_LOCKD=y
 CONFIG_LOCKD_V4=y
 CONFIG_NFS_COMMON=y
 CONFIG_SUNRPC=y
 CONFIG_SUNRPC_GSS=y
-# CONFIG_SUNRPC_BIND34 is not set
 CONFIG_RPCSEC_GSS_KRB5=y
 # CONFIG_RPCSEC_GSS_SPKM3 is not set
 # CONFIG_SMB_FS is not set
@@ -1086,7 +1193,7 @@ CONFIG_BITREVERSE=y
 # CONFIG_GENERIC_FIND_FIRST_BIT is not set
 CONFIG_CRC_CCITT=m
 # CONFIG_CRC16 is not set
-# CONFIG_CRC_T10DIF is not set
+CONFIG_CRC_T10DIF=y
 CONFIG_CRC_ITU_T=m
 CONFIG_CRC32=y
 # CONFIG_CRC7 is not set
@@ -1115,6 +1222,8 @@ CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_DEBUG_SHIRQ is not set
 CONFIG_DETECT_SOFTLOCKUP=y
+# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
 CONFIG_SCHED_DEBUG=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_TIMER_STATS is not set
@@ -1138,6 +1247,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_DEBUG_INFO=y
 # CONFIG_DEBUG_VM is not set
 CONFIG_DEBUG_WRITECOUNT=y
+CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_DEBUG_LIST=y
 # CONFIG_DEBUG_SG is not set
 CONFIG_FRAME_POINTER=y
@@ -1146,6 +1256,7 @@ CONFIG_FRAME_POINTER=y
 # CONFIG_BACKTRACE_SELF_TEST is not set
 # CONFIG_FAULT_INJECTION is not set
 # CONFIG_LATENCYTOP is not set
+CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_HAVE_FTRACE=y
 CONFIG_HAVE_DYNAMIC_FTRACE=y
 # CONFIG_FTRACE is not set
@@ -1153,12 +1264,14 @@ CONFIG_HAVE_DYNAMIC_FTRACE=y
 # CONFIG_SCHED_TRACER is not set
 # CONFIG_CONTEXT_SWITCH_TRACER is not set
 # CONFIG_SAMPLES is not set
+CONFIG_HAVE_ARCH_KGDB=y
+# CONFIG_KGDB is not set
 CONFIG_DEBUG_STACKOVERFLOW=y
 # CONFIG_DEBUG_STACK_USAGE is not set
 # CONFIG_DEBUG_PAGEALLOC is not set
-# CONFIG_DEBUGGER is not set
 # CONFIG_CODE_PATCHING_SELFTEST is not set
 # CONFIG_FTR_FIXUP_SELFTEST is not set
+# CONFIG_XMON is not set
 CONFIG_IRQSTACKS=y
 # CONFIG_VIRQ_DEBUG is not set
 # CONFIG_BOOTX_TEXT is not set

-- 

[patch 3/4] powerpc/ps3: Rework htab to remove ioremap

[Geoff Levand]

From: Masakazu Mokuno <mokuno@sm.sony.co.jp>

Rework the PS3 htab code to remove the need to ioremap the hash table
by using the HV calls lv1_insert_htab_entry() and
lv1_read_htab_entries().

This fixes a runtime failure on the PS3 introduced by the powerpc
ioremap_prot rework of commit a1f242ff460e4b50a045fa237c3c56cce9eabf83.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
---
 arch/powerpc/platforms/ps3/htab.c  |  269 ++++++++++++-------------------------
 arch/powerpc/platforms/ps3/setup.c |    1 
 2 files changed, 91 insertions(+), 179 deletions(-)

--- a/arch/powerpc/platforms/ps3/htab.c
+++ b/arch/powerpc/platforms/ps3/htab.c
@@ -29,138 +29,75 @@
 
 #include "platform.h"
 
-#if defined(DEBUG)
-#define DBG udbg_printf
-#else
-#define DBG pr_debug
-#endif
-
-static struct hash_pte *htab;
-static unsigned long htab_addr;
-static unsigned char *bolttab;
-static unsigned char *inusetab;
-
-static DEFINE_SPINLOCK(ps3_bolttab_lock);
-
-#define debug_dump_hpte(_a, _b, _c, _d, _e, _f, _g) \
-	_debug_dump_hpte(_a, _b, _c, _d, _e, _f, _g, __func__, __LINE__)
-static void _debug_dump_hpte(unsigned long pa, unsigned long va,
-	unsigned long group, unsigned long bitmap, struct hash_pte lhpte,
-	int psize, unsigned long slot, const char* func, int line)
-{
-	DBG("%s:%d: pa     = %lxh\n", func, line, pa);
-	DBG("%s:%d: lpar   = %lxh\n", func, line,
-		ps3_mm_phys_to_lpar(pa));
-	DBG("%s:%d: va     = %lxh\n", func, line, va);
-	DBG("%s:%d: group  = %lxh\n", func, line, group);
-	DBG("%s:%d: bitmap = %lxh\n", func, line, bitmap);
-	DBG("%s:%d: hpte.v = %lxh\n", func, line, lhpte.v);
-	DBG("%s:%d: hpte.r = %lxh\n", func, line, lhpte.r);
-	DBG("%s:%d: psize  = %xh\n", func, line, psize);
-	DBG("%s:%d: slot   = %lxh\n", func, line, slot);
-}
+/**
+ * enum lpar_vas_id - id of LPAR virtual address space.
+ * @lpar_vas_id_current: Current selected virtual address space
+ *
+ * Identify the target LPAR address space.
+ */
+
+enum ps3_lpar_vas_id {
+	PS3_LPAR_VAS_ID_CURRENT = 0,
+};
+
+
+static DEFINE_SPINLOCK(ps3_htab_lock);
 
 static long ps3_hpte_insert(unsigned long hpte_group, unsigned long va,
 	unsigned long pa, unsigned long rflags, unsigned long vflags,
 	int psize, int ssize)
 {
-	unsigned long slot;
-	struct hash_pte lhpte;
-	int secondary = 0;
-	unsigned long result;
-	unsigned long bitmap;
+	int result;
+	u64 hpte_v, hpte_r;
+	u64 inserted_index;
+	u64 evicted_v, evicted_r;
+	u64 hpte_v_array[4], hpte_rs;
 	unsigned long flags;
-	unsigned long p_pteg, s_pteg, b_index, b_mask, cb, ci;
-
-	vflags &= ~HPTE_V_SECONDARY; /* this bit is ignored */
+	long ret = -1;
 
-	lhpte.v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M) |
-		vflags | HPTE_V_VALID;
-	lhpte.r = hpte_encode_r(ps3_mm_phys_to_lpar(pa), psize) | rflags;
-
-	p_pteg = hpte_group / HPTES_PER_GROUP;
-	s_pteg = ~p_pteg & htab_hash_mask;
-
-	spin_lock_irqsave(&ps3_bolttab_lock, flags);
+	/*
+	 * lv1_insert_htab_entry() will search for victim
+	 * entry in both primary and secondary pte group
+	 */
+	vflags &= ~HPTE_V_SECONDARY;
 
-	BUG_ON(bolttab[p_pteg] == 0xff && bolttab[s_pteg] == 0xff);
+	hpte_v = hpte_encode_v(va, psize, ssize) | vflags | HPTE_V_VALID;
+	hpte_r = hpte_encode_r(ps3_mm_phys_to_lpar(pa), psize) | rflags;
 
-	bitmap = (inusetab[p_pteg] << 8) | inusetab[s_pteg];
+	spin_lock_irqsave(&ps3_htab_lock, flags);
 
-	if (bitmap == 0xffff) {
-		/*
-		 * PTEG is full. Search for victim.
-		 */
-		bitmap &= ~((bolttab[p_pteg] << 8) | bolttab[s_pteg]);
-		do {
-			ci = mftb() & 15;
-			cb = 0x8000UL >> ci;
-		} while ((cb & bitmap) == 0);
-	} else {
-		/*
-		 * search free slot in hardware order
-		 *	[primary]	0, 2, 4, 6, 1, 3, 5, 7
-		 *	[secondary]	0, 2, 4, 6, 1, 3, 5, 7
-		 */
-		for (ci = 0; ci < HPTES_PER_GROUP; ci += 2) {
-			cb = 0x8000UL >> ci;
-			if ((cb & bitmap) == 0)
-				goto found;
-		}
-		for (ci = 1; ci < HPTES_PER_GROUP; ci += 2) {
-			cb = 0x8000UL >> ci;
-			if ((cb & bitmap) == 0)
-				goto found;
-		}
-		for (ci = HPTES_PER_GROUP; ci < HPTES_PER_GROUP*2; ci += 2) {
-			cb = 0x8000UL >> ci;
-			if ((cb & bitmap) == 0)
-				goto found;
-		}
-		for (ci = HPTES_PER_GROUP+1; ci < HPTES_PER_GROUP*2; ci += 2) {
-			cb = 0x8000UL >> ci;
-			if ((cb & bitmap) == 0)
-				goto found;
-		}
-	}
-
-found:
-	if (ci < HPTES_PER_GROUP) {
-		slot = p_pteg * HPTES_PER_GROUP + ci;
-	} else {
-		slot = s_pteg * HPTES_PER_GROUP + (ci & 7);
-		/* lhpte.dw0.dw0.h = 1; */
-		vflags |= HPTE_V_SECONDARY;
-		lhpte.v |= HPTE_V_SECONDARY;
-	}
-
-	result = lv1_write_htab_entry(0, slot, lhpte.v, lhpte.r);
+	/* talk hvc to replace entries BOLTED == 0 */
+	result = lv1_insert_htab_entry(PS3_LPAR_VAS_ID_CURRENT, hpte_group,
+				       hpte_v, hpte_r,
+				       HPTE_V_BOLTED, 0,
+				       &inserted_index,
+				       &evicted_v, &evicted_r);
 
 	if (result) {
-		debug_dump_hpte(pa, va, hpte_group, bitmap, lhpte, psize, slot);
+		/* all entries bolted !*/
+		pr_info("%s:result=%d va=%lx pa=%lx ix=%lx v=%lx r=%lx\n",
+			__func__, result, va, pa, hpte_group, hpte_v, hpte_r);
 		BUG();
 	}
 
 	/*
-	 * If used slot is not in primary HPTE group,
-	 * the slot should be in secondary HPTE group.
+	 * see if the entry is inserted into secondary pteg
 	 */
+	result = lv1_read_htab_entries(PS3_LPAR_VAS_ID_CURRENT,
+				       inserted_index & ~0x3UL,
+				       &hpte_v_array[0], &hpte_v_array[1],
+				       &hpte_v_array[2], &hpte_v_array[3],
+				       &hpte_rs);
+	BUG_ON(result);
 
-	if ((hpte_group ^ slot) & ~(HPTES_PER_GROUP - 1)) {
-		secondary = 1;
-		b_index = s_pteg;
-	} else {
-		secondary = 0;
-		b_index = p_pteg;
-	}
+	if (hpte_v_array[inserted_index % 4] & HPTE_V_SECONDARY)
+		ret = (inserted_index & 7) | (1 << 3);
+	else
+		ret = inserted_index & 7;
 
-	b_mask = (lhpte.v & HPTE_V_BOLTED) ? 1 << 7 : 0 << 7;
-	bolttab[b_index] |= b_mask >> (slot & 7);
-	b_mask = 1 << 7;
-	inusetab[b_index] |= b_mask >> (slot & 7);
-	spin_unlock_irqrestore(&ps3_bolttab_lock, flags);
+	spin_unlock_irqrestore(&ps3_htab_lock, flags);
 
-	return (slot & 7) | (secondary << 3);
+	return ret;
 }
 
 static long ps3_hpte_remove(unsigned long hpte_group)
@@ -172,39 +109,48 @@ static long ps3_hpte_remove(unsigned lon
 static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp,
 	unsigned long va, int psize, int ssize, int local)
 {
+	int result;
+	u64 hpte_v, want_v, hpte_rs;
+	u64 hpte_v_array[4];
 	unsigned long flags;
-	unsigned long result;
-	unsigned long pteg, bit;
-	unsigned long hpte_v, want_v;
-
-	want_v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M);
+	long ret;
 
-	spin_lock_irqsave(&ps3_bolttab_lock, flags);
-
-	hpte_v = htab[slot].v;
-	if (!HPTE_V_COMPARE(hpte_v, want_v) || !(hpte_v & HPTE_V_VALID)) {
-		spin_unlock_irqrestore(&ps3_bolttab_lock, flags);
+	want_v = hpte_encode_v(va, psize, ssize);
 
-		/* ps3_hpte_insert() will be used to update PTE */
-		return -1;
-	}
+	spin_lock_irqsave(&ps3_htab_lock, flags);
 
-	result = lv1_write_htab_entry(0, slot, 0, 0);
+	result = lv1_read_htab_entries(PS3_LPAR_VAS_ID_CURRENT, slot & ~0x3UL,
+				       &hpte_v_array[0], &hpte_v_array[1],
+				       &hpte_v_array[2], &hpte_v_array[3],
+				       &hpte_rs);
 
 	if (result) {
-		DBG("%s: va=%lx slot=%lx psize=%d result = %ld (0x%lx)\n",
-		       __func__, va, slot, psize, result, result);
+		pr_info("%s: res=%d read va=%lx slot=%lx psize=%d\n",
+			__func__, result, va, slot, psize);
 		BUG();
 	}
 
-	pteg = slot / HPTES_PER_GROUP;
-	bit = slot % HPTES_PER_GROUP;
-	inusetab[pteg] &= ~(0x80 >> bit);
+	hpte_v = hpte_v_array[slot % 4];
 
-	spin_unlock_irqrestore(&ps3_bolttab_lock, flags);
+	/*
+	 * As lv1_read_htab_entries() does not give us the RPN, we can
+	 * not synthesize the new hpte_r value here, and therefore can
+	 * not update the hpte with lv1_insert_htab_entry(), so we
+	 * insted invalidate it and ask the caller to update it via
+	 * ps3_hpte_insert() by returning a -1 value.
+	 */
+	if (!HPTE_V_COMPARE(hpte_v, want_v) || !(hpte_v & HPTE_V_VALID)) {
+		/* not found */
+		ret = -1;
+	} else {
+		/* entry found, just invalidate it */
+		result = lv1_write_htab_entry(PS3_LPAR_VAS_ID_CURRENT,
+					      slot, 0, 0);
+		ret = -1;
+	}
 
-	/* ps3_hpte_insert() will be used to update PTE */
-	return -1;
+	spin_unlock_irqrestore(&ps3_htab_lock, flags);
+	return ret;
 }
 
 static void ps3_hpte_updateboltedpp(unsigned long newpp, unsigned long ea,
@@ -217,45 +163,35 @@ static void ps3_hpte_invalidate(unsigned
 	int psize, int ssize, int local)
 {
 	unsigned long flags;
-	unsigned long result;
-	unsigned long pteg, bit;
+	int result;
+
+	spin_lock_irqsave(&ps3_htab_lock, flags);
 
-	spin_lock_irqsave(&ps3_bolttab_lock, flags);
-	result = lv1_write_htab_entry(0, slot, 0, 0);
+	result = lv1_write_htab_entry(PS3_LPAR_VAS_ID_CURRENT, slot, 0, 0);
 
 	if (result) {
-		DBG("%s: va=%lx slot=%lx psize=%d result = %ld (0x%lx)\n",
-		       __func__, va, slot, psize, result, result);
+		pr_info("%s: res=%d va=%lx slot=%lx psize=%d\n",
+			__func__, result, va, slot, psize);
 		BUG();
 	}
 
-	pteg = slot / HPTES_PER_GROUP;
-	bit = slot % HPTES_PER_GROUP;
-	inusetab[pteg] &= ~(0x80 >> bit);
-	spin_unlock_irqrestore(&ps3_bolttab_lock, flags);
+	spin_unlock_irqrestore(&ps3_htab_lock, flags);
 }
 
 static void ps3_hpte_clear(void)
 {
-	int result;
+	unsigned long hpte_count = (1UL << ppc64_pft_size) >> 4;
+	u64 i;
 
-	DBG(" -> %s:%d\n", __func__, __LINE__);
-
-	result = lv1_unmap_htab(htab_addr);
-	BUG_ON(result);
+	for (i = 0; i < hpte_count; i++)
+		lv1_write_htab_entry(PS3_LPAR_VAS_ID_CURRENT, i, 0, 0);
 
 	ps3_mm_shutdown();
 	ps3_mm_vas_destroy();
-
-	DBG(" <- %s:%d\n", __func__, __LINE__);
 }
 
 void __init ps3_hpte_init(unsigned long htab_size)
 {
-	long bitmap_size;
-
-	DBG(" -> %s:%d\n", __func__, __LINE__);
-
 	ppc_md.hpte_invalidate = ps3_hpte_invalidate;
 	ppc_md.hpte_updatepp = ps3_hpte_updatepp;
 	ppc_md.hpte_updateboltedpp = ps3_hpte_updateboltedpp;
@@ -264,28 +200,5 @@ void __init ps3_hpte_init(unsigned long 
 	ppc_md.hpte_clear_all = ps3_hpte_clear;
 
 	ppc64_pft_size = __ilog2(htab_size);
-
-	bitmap_size = htab_size / sizeof(struct hash_pte) / 8;
-
-	bolttab = __va(lmb_alloc(bitmap_size, 1));
-	inusetab = __va(lmb_alloc(bitmap_size, 1));
-
-	memset(bolttab, 0, bitmap_size);
-	memset(inusetab, 0, bitmap_size);
-
-	DBG(" <- %s:%d\n", __func__, __LINE__);
 }
 
-void __init ps3_map_htab(void)
-{
-	long result;
-	unsigned long htab_size = (1UL << ppc64_pft_size);
-
-	result = lv1_map_htab(0, &htab_addr);
-
-	htab = (__force struct hash_pte *)ioremap_flags(htab_addr, htab_size,
-					    pgprot_val(PAGE_READONLY_X));
-
-	DBG("%s:%d: lpar %016lxh, virt %016lxh\n", __func__, __LINE__,
-		htab_addr, (unsigned long)htab);
-}
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -201,7 +201,6 @@ static void __init ps3_setup_arch(void)
 	       ps3_firmware_version.rev);
 
 	ps3_spu_set_platform();
-	ps3_map_htab();
 
 #ifdef CONFIG_SMP
 	smp_init_ps3();

-- 

[patch 4/4] powerpc/ps3: Fix ioremap of spu shadow regs

[Geoff Levand]

From: Masakazu Mokuno <mokuno@sm.sony.co.jp>

Fix the ioremap of the spu shadow regs on the PS3.

The current PS3 hypervisor requires the spu shadow regs to be
mapped with the PTE page protection bits set as read-only (PP=3).
This implementation uses the low level __ioremap() to bypass the
page protection settings inforced by ioremap_flags() to get the
needed PTE bits set for the shadow regs.

This fixes a runtime failure on the PS3 introduced by the powerpc
ioremap_prot rework of commit a1f242ff460e4b50a045fa237c3c56cce9eabf83.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
---
 arch/powerpc/platforms/ps3/spu.c |   18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

--- a/arch/powerpc/platforms/ps3/spu.c
+++ b/arch/powerpc/platforms/ps3/spu.c
@@ -186,14 +186,24 @@ static void spu_unmap(struct spu *spu)
 	iounmap(spu_pdata(spu)->shadow);
 }
 
+/**
+ * setup_areas - Map the spu regions into the address space.
+ *
+ * The current HV requires the spu shadow regs to be mapped with the
+ * PTE page protection bits set as read-only (PP=3).  This implementation
+ * uses the low level __ioremap() to bypass the page protection settings
+ * inforced by ioremap_flags() to get the needed PTE bits set for the
+ * shadow regs.
+ */
+
 static int __init setup_areas(struct spu *spu)
 {
 	struct table {char* name; unsigned long addr; unsigned long size;};
+	static const unsigned long shadow_flags = _PAGE_NO_CACHE | 3;
 
-	spu_pdata(spu)->shadow = ioremap_flags(spu_pdata(spu)->shadow_addr,
-					       sizeof(struct spe_shadow),
-					       pgprot_val(PAGE_READONLY) |
-					       _PAGE_NO_CACHE);
+	spu_pdata(spu)->shadow = __ioremap(spu_pdata(spu)->shadow_addr,
+					   sizeof(struct spe_shadow),
+					   shadow_flags);
 	if (!spu_pdata(spu)->shadow) {
 		pr_debug("%s:%d: ioremap shadow failed\n", __func__, __LINE__);
 		goto fail_ioremap;

-- 

Re: [patch 1/4] powerpc: Fix typo in pgtable-ppc64.h

[Paul Mackerras]

Geoff Levand writes:

> Fix a minor comment typo in pgtable-ppc64.h.

I don't see why this needs to go in 2.6.27.  See Linus' recent
comments on what should go in outside the merge window:

http://lkml.org/lkml/2008/8/20/251

I'll queue it for 2.6.28.

Paul.