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-rw-r--r--arch/microblaze/Makefile35
-rw-r--r--arch/microblaze/configs/mmu_defconfig70
-rw-r--r--arch/microblaze/configs/nommu_defconfig91
-rw-r--r--arch/microblaze/include/asm/hardirq.h2
-rw-r--r--arch/microblaze/include/asm/io.h1
-rw-r--r--arch/microblaze/include/asm/pgalloc.h4
-rw-r--r--arch/microblaze/include/asm/pgtable.h6
-rw-r--r--arch/microblaze/include/asm/prom.h23
-rw-r--r--arch/microblaze/include/asm/tlb.h2
-rw-r--r--arch/microblaze/include/asm/uaccess.h2
-rw-r--r--arch/microblaze/kernel/Makefile2
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c2
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo-static.c2
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo.c2
-rw-r--r--arch/microblaze/kernel/head.S17
-rw-r--r--arch/microblaze/kernel/hw_exception_handler.S109
-rw-r--r--arch/microblaze/kernel/intc.c2
-rw-r--r--arch/microblaze/kernel/irq.c9
-rw-r--r--arch/microblaze/kernel/module.c19
-rw-r--r--arch/microblaze/kernel/setup.c8
-rw-r--r--arch/microblaze/kernel/sys_microblaze.c99
-rw-r--r--arch/microblaze/kernel/syscall_table.S4
-rw-r--r--arch/microblaze/kernel/timer.c2
-rw-r--r--arch/microblaze/mm/fault.c15
-rw-r--r--arch/microblaze/mm/init.c6
25 files changed, 227 insertions, 307 deletions
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index d0bcf80a113..8439598d465 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -6,14 +6,16 @@ endif
# What CPU vesion are we building for, and crack it open
# as major.minor.rev
-CPU_VER=$(subst ",,$(CONFIG_XILINX_MICROBLAZE0_HW_VER) )
-CPU_MAJOR=$(shell echo $(CPU_VER) | cut -d '.' -f 1)
-CPU_MINOR=$(shell echo $(CPU_VER) | cut -d '.' -f 2)
-CPU_REV=$(shell echo $(CPU_VER) | cut -d '.' -f 3)
+CPU_VER := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
+CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
+CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
+CPU_REV := $(shell echo $(CPU_VER) | cut -d '.' -f 3)
export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
# Use cpu-related CONFIG_ vars to set compile options.
+# The various CONFIG_XILINX cpu features options are integers 0/1/2...
+# rather than bools y/n
# Work out HW multipler support. This is icky.
# 1. Spartan2 has no HW multiplers.
@@ -34,30 +36,29 @@ CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
-# The various CONFIG_XILINX cpu features options are integers 0/1/2...
-# rather than bools y/n
-
# r31 holds current when in kernel mode
-CFLAGS_KERNEL += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
+KBUILD_KERNEL += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
LDFLAGS :=
LDFLAGS_vmlinux :=
-LDFLAGS_BLOB := --format binary --oformat elf32-microblaze
-LIBGCC := $(shell $(CC) $(CFLAGS_KERNEL) -print-libgcc-file-name)
+LIBGCC := $(shell $(CC) $(KBUILD_KERNEL) -print-libgcc-file-name)
-head-y := arch/microblaze/kernel/head.o
-libs-y += arch/microblaze/lib/ $(LIBGCC)
-core-y += arch/microblaze/kernel/ arch/microblaze/mm/ \
- arch/microblaze/platform/
+head-y := arch/microblaze/kernel/head.o
+libs-y += arch/microblaze/lib/
+libs-y += $(LIBGCC)
+core-y += arch/microblaze/kernel/
+core-y += arch/microblaze/mm/
+core-y += arch/microblaze/platform/
-boot := arch/$(ARCH)/boot
+boot := arch/microblaze/boot
# defines filename extension depending memory management type
ifeq ($(CONFIG_MMU),)
-MMUEXT := -nommu
+MMU := -nommu
endif
-export MMUEXT
+
+export MMU
all: linux.bin
diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig
index bd0b85ec38f..09c32962b66 100644
--- a/arch/microblaze/configs/mmu_defconfig
+++ b/arch/microblaze/configs/mmu_defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.30-rc6
-# Fri May 22 10:02:33 2009
+# Linux kernel version: 2.6.31-rc6
+# Tue Aug 18 11:00:02 2009
#
CONFIG_MICROBLAZE=y
# CONFIG_SWAP is not set
@@ -18,7 +18,11 @@ CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_CSUM=y
+# CONFIG_PCI is not set
+CONFIG_NO_DMA=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+CONFIG_CONSTRUCTORS=y
#
# General setup
@@ -59,8 +63,8 @@ CONFIG_INITRAMFS_ROOT_GID=0
CONFIG_RD_GZIP=y
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
-CONFIG_INITRAMFS_COMPRESSION_NONE=y
-# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set
+# CONFIG_INITRAMFS_COMPRESSION_NONE is not set
+CONFIG_INITRAMFS_COMPRESSION_GZIP=y
# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set
# CONFIG_INITRAMFS_COMPRESSION_LZMA is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -71,7 +75,6 @@ CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_EXTRA_PASS=y
-# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HOTPLUG is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
@@ -84,13 +87,22 @@ CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
# CONFIG_SHMEM is not set
CONFIG_AIO=y
+
+#
+# Performance Counters
+#
CONFIG_VM_EVENT_COUNTERS=y
+# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
# CONFIG_MARKERS is not set
+
+#
+# GCOV-based kernel profiling
+#
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
@@ -102,7 +114,7 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_BLOCK=y
-# CONFIG_LBD is not set
+CONFIG_LBDAF=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
@@ -194,9 +206,9 @@ CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
-CONFIG_UNEVICTABLE_LRU=y
CONFIG_HAVE_MLOCK=y
CONFIG_HAVE_MLOCKED_PAGE_BIT=y
+CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
#
# Exectuable file formats
@@ -262,6 +274,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
+# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
@@ -325,7 +338,6 @@ CONFIG_MISC_DEVICES=y
# CONFIG_ATA is not set
# CONFIG_MD is not set
CONFIG_NETDEVICES=y
-CONFIG_COMPAT_NET_DEV_OPS=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
@@ -344,7 +356,7 @@ CONFIG_NET_ETHERNET=y
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
-# CONFIG_B44 is not set
+# CONFIG_KS8842 is not set
CONFIG_NETDEV_1000=y
CONFIG_NETDEV_10000=y
@@ -410,6 +422,11 @@ CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_TCG_TPM is not set
# CONFIG_I2C is not set
# CONFIG_SPI is not set
+
+#
+# PPS support
+#
+# CONFIG_PPS is not set
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
@@ -418,12 +435,6 @@ CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
-CONFIG_SSB_POSSIBLE=y
-
-#
-# Sonics Silicon Backplane
-#
-# CONFIG_SSB is not set
#
# Multifunction device drivers
@@ -433,22 +444,7 @@ CONFIG_SSB_POSSIBLE=y
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set
-
-#
-# Multimedia devices
-#
-
-#
-# Multimedia core support
-#
-# CONFIG_VIDEO_DEV is not set
-# CONFIG_DVB_CORE is not set
-# CONFIG_VIDEO_MEDIA is not set
-
-#
-# Multimedia drivers
-#
-# CONFIG_DAB is not set
+# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
@@ -469,9 +465,12 @@ CONFIG_SSB_POSSIBLE=y
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_RTC_CLASS is not set
-# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
+
+#
+# TI VLYNQ
+#
# CONFIG_STAGING is not set
#
@@ -485,12 +484,15 @@ CONFIG_EXT2_FS=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
-CONFIG_FILE_LOCKING=y
# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
+CONFIG_FILE_LOCKING=y
+CONFIG_FSNOTIFY=y
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY is not set
+CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
@@ -678,6 +680,7 @@ CONFIG_DEBUG_INFO=y
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_SAMPLES is not set
+# CONFIG_KMEMCHECK is not set
CONFIG_EARLY_PRINTK=y
CONFIG_HEART_BEAT=y
CONFIG_DEBUG_BOOTMEM=y
@@ -793,6 +796,5 @@ CONFIG_ZLIB_INFLATE=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
CONFIG_HAVE_LMB=y
CONFIG_NLATTR=y
diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig
index 4ef6af0a8f3..8b638615a97 100644
--- a/arch/microblaze/configs/nommu_defconfig
+++ b/arch/microblaze/configs/nommu_defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.30-rc5
-# Mon May 11 09:01:02 2009
+# Linux kernel version: 2.6.31-rc6
+# Tue Aug 18 10:35:30 2009
#
CONFIG_MICROBLAZE=y
# CONFIG_SWAP is not set
@@ -17,9 +17,12 @@ CONFIG_GENERIC_TIME=y
# CONFIG_GENERIC_TIME_VSYSCALL is not set
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_CSUM=y
# CONFIG_PCI is not set
-# CONFIG_NO_DMA is not set
+CONFIG_NO_DMA=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+CONFIG_CONSTRUCTORS=y
#
# General setup
@@ -64,7 +67,6 @@ CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_EXTRA_PASS=y
-# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HOTPLUG is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
@@ -76,13 +78,23 @@ CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_AIO=y
+
+#
+# Performance Counters
+#
CONFIG_VM_EVENT_COUNTERS=y
+# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
# CONFIG_MARKERS is not set
+
+#
+# GCOV-based kernel profiling
+#
+# CONFIG_GCOV_KERNEL is not set
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
@@ -95,7 +107,7 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_BLOCK=y
-# CONFIG_LBD is not set
+CONFIG_LBDAF=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
@@ -156,8 +168,16 @@ CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyUL0,115200"
# CONFIG_CMDLINE_FORCE is not set
CONFIG_OF=y
-CONFIG_OF_DEVICE=y
CONFIG_PROC_DEVICETREE=y
+
+#
+# Advanced setup
+#
+
+#
+# Default settings for advanced configuration options are used
+#
+CONFIG_KERNEL_START=0x90000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
@@ -169,7 +189,7 @@ CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
-CONFIG_UNEVICTABLE_LRU=y
+CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_NOMMU_INITIAL_TRIM_EXCESS=1
#
@@ -237,6 +257,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
+# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
@@ -254,7 +275,11 @@ CONFIG_WIRELESS=y
CONFIG_WIRELESS_OLD_REGULATORY=y
# CONFIG_WIRELESS_EXT is not set
# CONFIG_LIB80211 is not set
-# CONFIG_MAC80211 is not set
+
+#
+# CFG80211 needs to be enabled for MAC80211
+#
+CONFIG_MAC80211_DEFAULT_PS_VALUE=0
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
@@ -353,6 +378,7 @@ CONFIG_MTD_UCLINUX=y
# UBI - Unsorted block images
#
# CONFIG_MTD_UBI is not set
+CONFIG_OF_DEVICE=y
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_COW_COMMON is not set
@@ -364,6 +390,7 @@ CONFIG_BLK_DEV_RAM_SIZE=4096
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_XILINX_SYSACE is not set
CONFIG_MISC_DEVICES=y
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_C2PORT is not set
@@ -383,7 +410,6 @@ CONFIG_MISC_DEVICES=y
# CONFIG_ATA is not set
# CONFIG_MD is not set
CONFIG_NETDEVICES=y
-CONFIG_COMPAT_NET_DEV_OPS=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
@@ -402,7 +428,7 @@ CONFIG_NET_ETHERNET=y
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
-# CONFIG_B44 is not set
+# CONFIG_KS8842 is not set
CONFIG_NETDEV_1000=y
CONFIG_NETDEV_10000=y
@@ -463,23 +489,25 @@ CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_RTC is not set
# CONFIG_GEN_RTC is not set
+# CONFIG_XILINX_HWICAP is not set
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_I2C is not set
# CONFIG_SPI is not set
+
+#
+# PPS support
+#
+# CONFIG_PPS 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
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
-CONFIG_SSB_POSSIBLE=y
-
-#
-# Sonics Silicon Backplane
-#
-# CONFIG_SSB is not set
#
# Multifunction device drivers
@@ -489,22 +517,7 @@ CONFIG_SSB_POSSIBLE=y
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set
-
-#
-# Multimedia devices
-#
-
-#
-# Multimedia core support
-#
-# CONFIG_VIDEO_DEV is not set
-# CONFIG_DVB_CORE is not set
-# CONFIG_VIDEO_MEDIA is not set
-
-#
-# Multimedia drivers
-#
-CONFIG_DAB=y
+# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
@@ -520,9 +533,10 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y
# CONFIG_DISPLAY_SUPPORT is not set
# CONFIG_SOUND is not set
CONFIG_USB_SUPPORT=y
-# CONFIG_USB_ARCH_HAS_HCD is not set
+CONFIG_USB_ARCH_HAS_HCD=y
# CONFIG_USB_ARCH_HAS_OHCI is not set
# CONFIG_USB_ARCH_HAS_EHCI is not set
+# CONFIG_USB is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
@@ -543,9 +557,12 @@ CONFIG_USB_SUPPORT=y
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_RTC_CLASS is not set
-# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
+
+#
+# TI VLYNQ
+#
# CONFIG_STAGING is not set
#
@@ -558,12 +575,15 @@ CONFIG_EXT2_FS=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
-CONFIG_FILE_LOCKING=y
# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
+CONFIG_FILE_LOCKING=y
+CONFIG_FSNOTIFY=y
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY is not set
+CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
@@ -813,6 +833,5 @@ CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_ZLIB_INFLATE=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
-CONFIG_HAS_DMA=y
CONFIG_HAVE_LMB=y
CONFIG_NLATTR=y
diff --git a/arch/microblaze/include/asm/hardirq.h b/arch/microblaze/include/asm/hardirq.h
index 41e1e1aa36a..cd1ac9aad56 100644
--- a/arch/microblaze/include/asm/hardirq.h
+++ b/arch/microblaze/include/asm/hardirq.h
@@ -12,8 +12,6 @@
/* should be defined in each interrupt controller driver */
extern unsigned int get_irq(struct pt_regs *regs);
-#define ack_bad_irq ack_bad_irq
-void ack_bad_irq(unsigned int irq);
#include <asm-generic/hardirq.h>
#endif /* _ASM_MICROBLAZE_HARDIRQ_H */
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index 5c173424d07..7c3ec13b44d 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -14,7 +14,6 @@
#include <asm/byteorder.h>
#include <asm/page.h>
#include <linux/types.h>
-#include <asm/byteorder.h>
#include <linux/mm.h> /* Get struct page {...} */
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index 59a757e46ba..b0131da1387 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -180,7 +180,7 @@ extern inline void pte_free(struct mm_struct *mm, struct page *ptepage)
__free_page(ptepage);
}
-#define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, (pte))
+#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, (pte))
#define pmd_populate(mm, pmd, pte) (pmd_val(*(pmd)) = page_address(pte))
@@ -193,7 +193,7 @@ extern inline void pte_free(struct mm_struct *mm, struct page *ptepage)
*/
#define pmd_alloc_one(mm, address) ({ BUG(); ((pmd_t *)2); })
/*#define pmd_free(mm, x) do { } while (0)*/
-#define __pmd_free_tlb(tlb, x) do { } while (0)
+#define __pmd_free_tlb(tlb, x, addr) do { } while (0)
#define pgd_populate(mm, pmd, pte) BUG()
extern int do_check_pgt_cache(int, int);
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index 4c57a586a98..cc3a4dfc3ea 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -185,6 +185,7 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
/* Definitions for MicroBlaze. */
#define _PAGE_GUARDED 0x001 /* G: page is guarded from prefetch */
+#define _PAGE_FILE 0x001 /* when !present: nonlinear file mapping */
#define _PAGE_PRESENT 0x002 /* software: PTE contains a translation */
#define _PAGE_NO_CACHE 0x004 /* I: caching is inhibited */
#define _PAGE_WRITETHRU 0x008 /* W: caching is write-through */
@@ -320,8 +321,7 @@ static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; }
static inline int pte_exec(pte_t pte) { return pte_val(pte) & _PAGE_EXEC; }
static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
-/* FIXME */
-static inline int pte_file(pte_t pte) { return 0; }
+static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; }
static inline void pte_uncache(pte_t pte) { pte_val(pte) |= _PAGE_NO_CACHE; }
static inline void pte_cache(pte_t pte) { pte_val(pte) &= ~_PAGE_NO_CACHE; }
@@ -488,7 +488,7 @@ static inline pmd_t *pmd_offset(pgd_t *dir, unsigned long address)
/* Encode and decode a nonlinear file mapping entry */
#define PTE_FILE_MAX_BITS 29
#define pte_to_pgoff(pte) (pte_val(pte) >> 3)
-#define pgoff_to_pte(off) ((pte_t) { ((off) << 3) })
+#define pgoff_to_pte(off) ((pte_t) { ((off) << 3) | _PAGE_FILE })
extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index 20f7b3a926e..37e6f305a68 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -16,6 +16,18 @@
#define _ASM_MICROBLAZE_PROM_H
#ifdef __KERNEL__
+/* Definitions used by the flattened device tree */
+#define OF_DT_HEADER 0xd00dfeed /* marker */
+#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
+#define OF_DT_END_NODE 0x2 /* End node */
+#define OF_DT_PROP 0x3 /* Property: name off, size, content */
+#define OF_DT_NOP 0x4 /* nop */
+#define OF_DT_END 0x9
+
+#define OF_DT_VERSION 0x10
+
+#ifndef __ASSEMBLY__
+
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/platform_device.h>
@@ -29,16 +41,6 @@
#define of_prop_cmp(s1, s2) strcmp((s1), (s2))
#define of_node_cmp(s1, s2) strcasecmp((s1), (s2))
-/* Definitions used by the flattened device tree */
-#define OF_DT_HEADER 0xd00dfeed /* marker */
-#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
-#define OF_DT_END_NODE 0x2 /* End node */
-#define OF_DT_PROP 0x3 /* Property: name off, size, content */
-#define OF_DT_NOP 0x4 /* nop */
-#define OF_DT_END 0x9
-
-#define OF_DT_VERSION 0x10
-
/*
* This is what gets passed to the kernel by prom_init or kexec
*
@@ -309,5 +311,6 @@ extern void __iomem *of_iomap(struct device_node *device, int index);
*/
#include <linux/of.h>
+#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_MICROBLAZE_PROM_H */
diff --git a/arch/microblaze/include/asm/tlb.h b/arch/microblaze/include/asm/tlb.h
index c472d280113..e8abd4a0349 100644
--- a/arch/microblaze/include/asm/tlb.h
+++ b/arch/microblaze/include/asm/tlb.h
@@ -11,7 +11,7 @@
#ifndef _ASM_MICROBLAZE_TLB_H
#define _ASM_MICROBLAZE_TLB_H
-#define tlb_flush(tlb) do {} while (0)
+#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
#include <asm-generic/tlb.h>
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
index 65adad61e7e..5431b4631a7 100644
--- a/arch/microblaze/include/asm/uaccess.h
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -189,7 +189,7 @@ extern long strnlen_user(const char *src, long count);
#define __put_user(x, ptr) \
({ \
- __typeof__(*(ptr)) __gu_val = x; \
+ __typeof__(*(ptr)) volatile __gu_val = (x); \
long __gu_err = 0; \
switch (sizeof(__gu_val)) { \
case 1: \
diff --git a/arch/microblaze/kernel/Makefile b/arch/microblaze/kernel/Makefile
index f4a5e19a20e..d487729683d 100644
--- a/arch/microblaze/kernel/Makefile
+++ b/arch/microblaze/kernel/Makefile
@@ -17,4 +17,4 @@ obj-$(CONFIG_HEART_BEAT) += heartbeat.o
obj-$(CONFIG_MODULES) += microblaze_ksyms.o module.o
obj-$(CONFIG_MMU) += misc.o
-obj-y += entry$(MMUEXT).o
+obj-y += entry$(MMU).o
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
index 153f57c57b6..c259786e7fa 100644
--- a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
+++ b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
@@ -22,7 +22,7 @@
#define CI(c, p) { ci->c = PVR_##p(pvr); }
#define err_printk(x) \
- early_printk("ERROR: Microblaze " x " - different for PVR and DTS\n");
+ early_printk("ERROR: Microblaze " x "-different for PVR and DTS\n");
void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu)
{
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-static.c b/arch/microblaze/kernel/cpu/cpuinfo-static.c
index 450ca6bb828..adb448f93d5 100644
--- a/arch/microblaze/kernel/cpu/cpuinfo-static.c
+++ b/arch/microblaze/kernel/cpu/cpuinfo-static.c
@@ -18,7 +18,7 @@ static const char family_string[] = CONFIG_XILINX_MICROBLAZE0_FAMILY;
static const char cpu_ver_string[] = CONFIG_XILINX_MICROBLAZE0_HW_VER;
#define err_printk(x) \
- early_printk("ERROR: Microblaze " x "- different for kernel and DTS\n");
+ early_printk("ERROR: Microblaze " x "-different for kernel and DTS\n");
void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu)
{
diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c
index a10bea119b9..c411c6757de 100644
--- a/arch/microblaze/kernel/cpu/cpuinfo.c
+++ b/arch/microblaze/kernel/cpu/cpuinfo.c
@@ -26,6 +26,8 @@ const struct cpu_ver_key cpu_ver_lookup[] = {
{"7.10.b", 0x09},
{"7.10.c", 0x0a},
{"7.10.d", 0x0b},
+ {"7.20.a", 0x0c},
+ {"7.20.b", 0x0d},
/* FIXME There is no keycode defined in MBV for these versions */
{"2.10.a", 0x10},
{"3.00.a", 0x20},
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index e568d6ec621..e41c6ce2a7b 100644
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -31,6 +31,7 @@
#include <linux/linkage.h>
#include <asm/thread_info.h>
#include <asm/page.h>
+#include <asm/prom.h> /* for OF_DT_HEADER */
#ifdef CONFIG_MMU
#include <asm/setup.h> /* COMMAND_LINE_SIZE */
@@ -54,11 +55,19 @@ ENTRY(_start)
andi r1, r1, ~2
mts rmsr, r1
-/* save fdt to kernel location */
-/* r7 stores pointer to fdt blob */
- beqi r7, no_fdt_arg
+/* r7 may point to an FDT, or there may be one linked in.
+ if it's in r7, we've got to save it away ASAP.
+ We ensure r7 points to a valid FDT, just in case the bootloader
+ is broken or non-existent */
+ beqi r7, no_fdt_arg /* NULL pointer? don't copy */
+ lw r11, r0, r7 /* Does r7 point to a */
+ rsubi r11, r11, OF_DT_HEADER /* valid FDT? */
+ beqi r11, _prepare_copy_fdt
+ or r7, r0, r0 /* clear R7 when not valid DTB */
+ bnei r11, no_fdt_arg /* No - get out of here */
+_prepare_copy_fdt:
or r11, r0, r0 /* incremment */
- ori r4, r0, TOPHYS(_fdt_start) /* save bram context */
+ ori r4, r0, TOPHYS(_fdt_start)
ori r3, r0, (0x4000 - 4)
_copy_fdt:
lw r12, r7, r11 /* r12 = r7 + r11 */
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
index 9d591cd74fc..3288c973767 100644
--- a/arch/microblaze/kernel/hw_exception_handler.S
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -74,6 +74,7 @@
#include <asm/mmu.h>
#include <asm/pgtable.h>
+#include <asm/signal.h>
#include <asm/asm-offsets.h>
/* Helpful Macros */
@@ -428,19 +429,9 @@ handle_unaligned_ex:
mfs r17, rbtr; /* ESR[DS] set - return address in BTR */
nop
_no_delayslot:
-#endif
-
-#ifdef CONFIG_MMU
- /* Check if unaligned address is last on a 4k page */
- andi r5, r4, 0xffc
- xori r5, r5, 0xffc
- bnei r5, _unaligned_ex2
- _unaligned_ex1:
- RESTORE_STATE;
-/* Another page must be accessed or physical address not in page table */
- bri unaligned_data_trap
-
- _unaligned_ex2:
+ /* jump to high level unaligned handler */
+ RESTORE_STATE;
+ bri unaligned_data_trap
#endif
andi r6, r3, 0x3E0; /* Mask and extract the register operand */
srl r6, r6; /* r6 >> 5 */
@@ -450,45 +441,6 @@ _no_delayslot:
srl r6, r6;
/* Store the register operand in a temporary location */
sbi r6, r0, TOPHYS(ex_reg_op);
-#ifdef CONFIG_MMU
- /* Get physical address */
- /* If we are faulting a kernel address, we have to use the
- * kernel page tables.
- */
- ori r5, r0, CONFIG_KERNEL_START
- cmpu r5, r4, r5
- bgti r5, _unaligned_ex3
- ori r5, r0, swapper_pg_dir
- bri _unaligned_ex4
-
- /* Get the PGD for the current thread. */
-_unaligned_ex3: /* user thread */
- addi r5 ,CURRENT_TASK, TOPHYS(0); /* get current task address */
- lwi r5, r5, TASK_THREAD + PGDIR
-_unaligned_ex4:
- tophys(r5,r5)
- BSRLI(r6,r4,20) /* Create L1 (pgdir/pmd) address */
- andi r6, r6, 0xffc
-/* Assume pgdir aligned on 4K boundary, no need for "andi r5,r5,0xfffff003" */
- or r5, r5, r6
- lwi r6, r5, 0 /* Get L1 entry */
- andi r5, r6, 0xfffff000 /* Extract L2 (pte) base address. */
- beqi r5, _unaligned_ex1 /* Bail if no table */
-
- tophys(r5,r5)
- BSRLI(r6,r4,10) /* Compute PTE address */
- andi r6, r6, 0xffc
- andi r5, r5, 0xfffff003
- or r5, r5, r6
- lwi r5, r5, 0 /* Get Linux PTE */
-
- andi r6, r5, _PAGE_PRESENT
- beqi r6, _unaligned_ex1 /* Bail if no page */
-
- andi r5, r5, 0xfffff000 /* Extract RPN */
- andi r4, r4, 0x00000fff /* Extract offset */
- or r4, r4, r5 /* Create physical address */
-#endif /* CONFIG_MMU */
andi r6, r3, 0x400; /* Extract ESR[S] */
bnei r6, ex_sw;
@@ -959,15 +911,15 @@ _unaligned_data_exception:
andi r6, r3, 0x800; /* Extract ESR[W] - delay slot */
ex_lw_vm:
beqid r6, ex_lhw_vm;
- lbui r5, r4, 0; /* Exception address in r4 - delay slot */
+load1: lbui r5, r4, 0; /* Exception address in r4 - delay slot */
/* Load a word, byte-by-byte from destination address and save it in tmp space*/
la r6, r0, ex_tmp_data_loc_0;
sbi r5, r6, 0;
- lbui r5, r4, 1;
+load2: lbui r5, r4, 1;
sbi r5, r6, 1;
- lbui r5, r4, 2;
+load3: lbui r5, r4, 2;
sbi r5, r6, 2;
- lbui r5, r4, 3;
+load4: lbui r5, r4, 3;
sbi r5, r6, 3;
brid ex_lw_tail_vm;
/* Get the destination register value into r3 - delay slot */
@@ -977,7 +929,7 @@ ex_lhw_vm:
* save it in tmp space */
la r6, r0, ex_tmp_data_loc_0;
sbi r5, r6, 0;
- lbui r5, r4, 1;
+load5: lbui r5, r4, 1;
sbi r5, r6, 1;
lhui r3, r6, 0; /* Get the destination register value into r3 */
ex_lw_tail_vm:
@@ -996,22 +948,53 @@ ex_sw_tail_vm:
swi r3, r5, 0; /* Get the word - delay slot */
/* Store the word, byte-by-byte into destination address */
lbui r3, r5, 0;
- sbi r3, r4, 0;
+store1: sbi r3, r4, 0;
lbui r3, r5, 1;
- sbi r3, r4, 1;
+store2: sbi r3, r4, 1;
lbui r3, r5, 2;
- sbi r3, r4, 2;
+store3: sbi r3, r4, 2;
lbui r3, r5, 3;
brid ret_from_exc;
- sbi r3, r4, 3; /* Delay slot */
+store4: sbi r3, r4, 3; /* Delay slot */
ex_shw_vm:
/* Store the lower half-word, byte-by-byte into destination address */
lbui r3, r5, 2;
- sbi r3, r4, 0;
+store5: sbi r3, r4, 0;
lbui r3, r5, 3;
brid ret_from_exc;
- sbi r3, r4, 1; /* Delay slot */
+store6: sbi r3, r4, 1; /* Delay slot */
ex_sw_end_vm: /* Exception handling of store word, ends. */
+
+/* We have to prevent cases that get/put_user macros get unaligned pointer
+ * to bad page area. We have to find out which origin instruction caused it
+ * and called fixup for that origin instruction not instruction in unaligned
+ * handler */
+ex_unaligned_fixup:
+ ori r5, r7, 0 /* setup pointer to pt_regs */
+ lwi r6, r7, PT_PC; /* faulting address is one instruction above */
+ addik r6, r6, -4 /* for finding proper fixup */
+ swi r6, r7, PT_PC; /* a save back it to PT_PC */
+ addik r7, r0, SIGSEGV
+ /* call bad_page_fault for finding aligned fixup, fixup address is saved
+ * in PT_PC which is used as return address from exception */
+ la r15, r0, ret_from_exc-8 /* setup return address */
+ brid bad_page_fault
+ nop
+
+/* We prevent all load/store because it could failed any attempt to access */
+.section __ex_table,"a";
+ .word load1,ex_unaligned_fixup;
+ .word load2,ex_unaligned_fixup;
+ .word load3,ex_unaligned_fixup;
+ .word load4,ex_unaligned_fixup;
+ .word load5,ex_unaligned_fixup;
+ .word store1,ex_unaligned_fixup;
+ .word store2,ex_unaligned_fixup;
+ .word store3,ex_unaligned_fixup;
+ .word store4,ex_unaligned_fixup;
+ .word store5,ex_unaligned_fixup;
+ .word store6,ex_unaligned_fixup;
+.previous;
.end _unaligned_data_exception
#endif /* CONFIG_MMU */
diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c
index b15605299a5..6eea6f92b84 100644
--- a/arch/microblaze/kernel/intc.c
+++ b/arch/microblaze/kernel/intc.c
@@ -12,6 +12,7 @@
#include <linux/irq.h>
#include <asm/page.h>
#include <linux/io.h>
+#include <linux/bug.h>
#include <asm/prom.h>
#include <asm/irq.h>
@@ -130,6 +131,7 @@ void __init init_IRQ(void)
if (intc)
break;
}
+ BUG_ON(!intc);
intc_baseaddr = *(int *) of_get_property(intc, "reg", NULL);
intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE);
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
index f688ee93e3b..7d5ddd62d4d 100644
--- a/arch/microblaze/kernel/irq.c
+++ b/arch/microblaze/kernel/irq.c
@@ -30,15 +30,6 @@ unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
}
EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
-/*
- * 'what should we do if we get a hw irq event on an illegal vector'.
- * each architecture has to answer this themselves.
- */
-void ack_bad_irq(unsigned int irq)
-{
- printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq);
-}
-
static u32 concurrent_irq;
void do_IRQ(struct pt_regs *regs)
diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c
index 51414171326..5a45b1adfef 100644
--- a/arch/microblaze/kernel/module.c
+++ b/arch/microblaze/kernel/module.c
@@ -57,7 +57,6 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
Elf32_Sym *sym;
unsigned long int *location;
- unsigned long int locoffs;
unsigned long int value;
#if __GNUC__ < 4
unsigned long int old_value;
@@ -113,10 +112,12 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
break;
case R_MICROBLAZE_64_PCREL:
- locoffs = (location[0] & 0xFFFF) << 16 |
+#if __GNUC__ < 4
+ old_value = (location[0] & 0xFFFF) << 16 |
(location[1] & 0xFFFF);
- value -= (unsigned long int)(location) + 4 +
- locoffs;
+ value -= old_value;
+#endif
+ value -= (unsigned long int)(location) + 4;
location[0] = (location[0] & 0xFFFF0000) |
(value >> 16);
location[1] = (location[1] & 0xFFFF0000) |
@@ -125,6 +126,14 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
value);
break;
+ case R_MICROBLAZE_32_PCREL_LO:
+ pr_debug("R_MICROBLAZE_32_PCREL_LO\n");
+ break;
+
+ case R_MICROBLAZE_64_NONE:
+ pr_debug("R_MICROBLAZE_NONE\n");
+ break;
+
case R_MICROBLAZE_NONE:
pr_debug("R_MICROBLAZE_NONE\n");
break;
@@ -133,7 +142,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
printk(KERN_ERR "module %s: "
"Unknown relocation: %u\n",
module->name,
- ELF32_R_TYPE(rela->r_info));
+ ELF32_R_TYPE(rela[i].r_info));
return -ENOEXEC;
}
}
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 8709bea0960..2a97bf513b6 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -138,8 +138,12 @@ void __init machine_early_init(const char *cmdline, unsigned int ram,
setup_early_printk(NULL);
#endif
- early_printk("Ramdisk addr 0x%08x, FDT 0x%08x\n", ram, fdt);
- printk(KERN_NOTICE "Found FDT at 0x%08x\n", fdt);
+ early_printk("Ramdisk addr 0x%08x, ", ram);
+ if (fdt)
+ early_printk("FDT at 0x%08x\n", fdt);
+ else
+ early_printk("Compiled-in FDT at 0x%08x\n",
+ (unsigned int)_fdt_start);
#ifdef CONFIG_MTD_UCLINUX
early_printk("Found romfs @ 0x%08x (0x%08x)\n",
diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c
index e000bce09b2..b96f1682bb2 100644
--- a/arch/microblaze/kernel/sys_microblaze.c
+++ b/arch/microblaze/kernel/sys_microblaze.c
@@ -33,105 +33,6 @@
#include <linux/unistd.h>
#include <asm/syscalls.h>
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly. This will be remove with new toolchain.
- */
-asmlinkage long
-sys_ipc(uint call, int first, int second, int third, void *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- ret = -EINVAL;
- switch (call) {
- case SEMOP:
- ret = sys_semop(first, (struct sembuf *)ptr, second);
- break;
- case SEMGET:
- ret = sys_semget(first, second, third);
- break;
- case SEMCTL:
- {
- union semun fourth;
-
- if (!ptr)
- break;
- ret = (access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
- || (get_user(fourth.__pad, (void **)ptr)) ;
- if (ret)
- break;
- ret = sys_semctl(first, second, third, fourth);
- break;
- }
- case MSGSND:
- ret = sys_msgsnd(first, (struct msgbuf *) ptr, second, third);
- break;
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
-
- if (!ptr)
- break;
- ret = (access_ok(VERIFY_READ, ptr, sizeof(tmp))
- ? 0 : -EFAULT) || copy_from_user(&tmp,
- (struct ipc_kludge *) ptr, sizeof(tmp));
- if (ret)
- break;
- ret = sys_msgrcv(first, tmp.msgp, second, tmp.msgtyp,
- third);
- break;
- }
- default:
- ret = sys_msgrcv(first, (struct msgbuf *) ptr,
- second, fifth, third);
- break;
- }
- break;
- case MSGGET:
- ret = sys_msgget((key_t) first, second);
- break;
- case MSGCTL:
- ret = sys_msgctl(first, second, (struct msqid_ds *) ptr);
- break;
- case SHMAT:
- switch (version) {
- default: {
- ulong raddr;
- ret = access_ok(VERIFY_WRITE, (ulong *) third,
- sizeof(ulong)) ? 0 : -EFAULT;
- if (ret)
- break;
- ret = do_shmat(first, (char *) ptr, second, &raddr);
- if (ret)
- break;
- ret = put_user(raddr, (ulong *) third);
- break;
- }
- case 1: /* iBCS2 emulator entry point */
- if (!segment_eq(get_fs(), get_ds()))
- break;
- ret = do_shmat(first, (char *) ptr, second,
- (ulong *) third);
- break;
- }
- break;
- case SHMDT:
- ret = sys_shmdt((char *)ptr);
- break;
- case SHMGET:
- ret = sys_shmget(first, second, third);
- break;
- case SHMCTL:
- ret = sys_shmctl(first, second, (struct shmid_ds *) ptr);
- break;
- }
- return ret;
-}
asmlinkage long microblaze_vfork(struct pt_regs *regs)
{
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index 31b32a6c5f4..457216097df 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -121,7 +121,7 @@ ENTRY(sys_call_table)
.long sys_wait4
.long sys_swapoff /* 115 */
.long sys_sysinfo
- .long sys_ipc
+ .long sys_ni_syscall /* old sys_ipc */
.long sys_fsync
.long sys_ni_syscall /* sys_sigreturn_wrapper */
.long sys_clone /* 120 */
@@ -313,7 +313,7 @@ ENTRY(sys_call_table)
.long sys_fchmodat
.long sys_faccessat
.long sys_ni_syscall /* pselect6 */
- .long sys_ni_syscall /* sys_ppoll */
+ .long sys_ppoll
.long sys_unshare /* 310 */
.long sys_set_robust_list
.long sys_get_robust_list
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index bdfa2f9f0c8..5499deae7fa 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -22,6 +22,7 @@
#include <linux/clocksource.h>
#include <linux/clockchips.h>
#include <linux/io.h>
+#include <linux/bug.h>
#include <asm/cpuinfo.h>
#include <asm/setup.h>
#include <asm/prom.h>
@@ -234,6 +235,7 @@ void __init time_init(void)
if (timer)
break;
}
+ BUG_ON(!timer);
timer_baseaddr = *(int *) of_get_property(timer, "reg", NULL);
timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE);
diff --git a/arch/microblaze/mm/fault.c b/arch/microblaze/mm/fault.c
index 956607a63f4..d9d249a66ff 100644
--- a/arch/microblaze/mm/fault.c
+++ b/arch/microblaze/mm/fault.c
@@ -69,7 +69,7 @@ static int store_updates_sp(struct pt_regs *regs)
* It is called from do_page_fault above and from some of the procedures
* in traps.c.
*/
-static void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig)
+void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig)
{
const struct exception_table_entry *fixup;
/* MS: no context */
@@ -122,15 +122,10 @@ void do_page_fault(struct pt_regs *regs, unsigned long address,
}
#endif /* CONFIG_KGDB */
- if (in_atomic() || mm == NULL) {
- /* FIXME */
- if (kernel_mode(regs)) {
- printk(KERN_EMERG
- "Page fault in kernel mode - Oooou!!! pid %d\n",
- current->pid);
- _exception(SIGSEGV, regs, code, address);
- return;
- }
+ if (in_atomic() || !mm) {
+ if (kernel_mode(regs))
+ goto bad_area_nosemaphore;
+
/* in_atomic() in user mode is really bad,
as is current->mm == NULL. */
printk(KERN_EMERG "Page fault in user mode with "
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 8d92c4efe9a..f207f1a94db 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -130,13 +130,13 @@ void __init setup_memory(void)
* (in case the address isn't page-aligned).
*/
#ifndef CONFIG_MMU
- map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)_end)),
+ map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)klimit)),
min_low_pfn, max_low_pfn);
#else
map_size = init_bootmem_node(&contig_page_data,
- PFN_UP(TOPHYS((u32)_end)), min_low_pfn, max_low_pfn);
+ PFN_UP(TOPHYS((u32)klimit)), min_low_pfn, max_low_pfn);
#endif
- lmb_reserve(PFN_UP(TOPHYS((u32)_end)) << PAGE_SHIFT, map_size);
+ lmb_reserve(PFN_UP(TOPHYS((u32)klimit)) << PAGE_SHIFT, map_size);
/* free bootmem is whole main memory */
free_bootmem(memory_start, memory_size);