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authorLinus Torvalds <torvalds@linux-foundation.org>2010-01-21 07:15:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-21 07:15:10 -0800
commitdef20529227a5c0938c374d11781bd0dbd5edee4 (patch)
tree76ba59d7dfdb858892996a59e95a892b43e0e6d2
parent24bc7347da73a9ed3383056c3d0f28c0e361621e (diff)
parent2045124ffd1a5e46d157349016a2c50f19c8c91d (diff)
downloadlinux-stericsson-def20529227a5c0938c374d11781bd0dbd5edee4.tar.gz
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 5888/1: arm: Update comments in cacheflush.h and remove unnecessary V6 and V7 comments ARM: 5886/1: arm: Fix cpu_proc_fin() for proc-v7.S and make kexec work ARM: 5885/1: arm: Flush TLB entries in setup_mm_for_reboot() ARM: 5884/1: arm: Fix DCC console for v7 ARM: 5883/1: Revert "disable NX support for OABI-supporting kernels" ARM: 5882/1: ARM: Fix uncompress code compile for different defines of flush(void) ARM: fix badly placed mach/plat entries in Kconfig & Makefile
-rw-r--r--arch/arm/Kconfig70
-rw-r--r--arch/arm/Makefile4
-rw-r--r--arch/arm/boot/compressed/head.S8
-rw-r--r--arch/arm/boot/compressed/misc.c13
-rw-r--r--arch/arm/include/asm/cacheflush.h20
-rw-r--r--arch/arm/kernel/debug.S20
-rw-r--r--arch/arm/kernel/elf.c9
-rw-r--r--arch/arm/mach-gemini/include/mach/uncompress.h4
-rw-r--r--arch/arm/mm/mmu.c2
-rw-r--r--arch/arm/mm/proc-v6.S2
-rw-r--r--arch/arm/mm/proc-v7.S11
-rw-r--r--arch/arm/plat-mxc/include/mach/uncompress.h4
12 files changed, 110 insertions, 57 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c2238cd474c7..4c33ca82f9b1 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -729,14 +729,26 @@ config ARCH_U8500
endchoice
+source "arch/arm/mach-aaec2000/Kconfig"
+
+source "arch/arm/mach-at91/Kconfig"
+
+source "arch/arm/mach-bcmring/Kconfig"
+
source "arch/arm/mach-clps711x/Kconfig"
+source "arch/arm/mach-davinci/Kconfig"
+
+source "arch/arm/mach-dove/Kconfig"
+
source "arch/arm/mach-ep93xx/Kconfig"
source "arch/arm/mach-footbridge/Kconfig"
source "arch/arm/mach-gemini/Kconfig"
+source "arch/arm/mach-h720x/Kconfig"
+
source "arch/arm/mach-integrator/Kconfig"
source "arch/arm/mach-iop32x/Kconfig"
@@ -751,16 +763,26 @@ source "arch/arm/mach-ixp2000/Kconfig"
source "arch/arm/mach-ixp23xx/Kconfig"
+source "arch/arm/mach-kirkwood/Kconfig"
+
+source "arch/arm/mach-ks8695/Kconfig"
+
+source "arch/arm/mach-lh7a40x/Kconfig"
+
source "arch/arm/mach-loki/Kconfig"
+source "arch/arm/mach-msm/Kconfig"
+
source "arch/arm/mach-mv78xx0/Kconfig"
-source "arch/arm/mach-pxa/Kconfig"
-source "arch/arm/plat-pxa/Kconfig"
+source "arch/arm/plat-mxc/Kconfig"
-source "arch/arm/mach-mmp/Kconfig"
+source "arch/arm/mach-netx/Kconfig"
-source "arch/arm/mach-sa1100/Kconfig"
+source "arch/arm/mach-nomadik/Kconfig"
+source "arch/arm/plat-nomadik/Kconfig"
+
+source "arch/arm/mach-ns9xxx/Kconfig"
source "arch/arm/plat-omap/Kconfig"
@@ -770,9 +792,14 @@ source "arch/arm/mach-omap2/Kconfig"
source "arch/arm/mach-orion5x/Kconfig"
-source "arch/arm/mach-kirkwood/Kconfig"
+source "arch/arm/mach-pxa/Kconfig"
+source "arch/arm/plat-pxa/Kconfig"
-source "arch/arm/mach-dove/Kconfig"
+source "arch/arm/mach-mmp/Kconfig"
+
+source "arch/arm/mach-realview/Kconfig"
+
+source "arch/arm/mach-sa1100/Kconfig"
source "arch/arm/plat-samsung/Kconfig"
source "arch/arm/plat-s3c24xx/Kconfig"
@@ -800,41 +827,14 @@ if ARCH_S5PC1XX
source "arch/arm/mach-s5pc100/Kconfig"
endif
-source "arch/arm/mach-lh7a40x/Kconfig"
+source "arch/arm/mach-u300/Kconfig"
-source "arch/arm/mach-h720x/Kconfig"
+source "arch/arm/mach-ux500/Kconfig"
source "arch/arm/mach-versatile/Kconfig"
-source "arch/arm/mach-aaec2000/Kconfig"
-
-source "arch/arm/mach-realview/Kconfig"
-
-source "arch/arm/mach-at91/Kconfig"
-
-source "arch/arm/plat-mxc/Kconfig"
-
-source "arch/arm/mach-nomadik/Kconfig"
-source "arch/arm/plat-nomadik/Kconfig"
-
-source "arch/arm/mach-netx/Kconfig"
-
-source "arch/arm/mach-ns9xxx/Kconfig"
-
-source "arch/arm/mach-davinci/Kconfig"
-
-source "arch/arm/mach-ks8695/Kconfig"
-
-source "arch/arm/mach-msm/Kconfig"
-
-source "arch/arm/mach-u300/Kconfig"
-
source "arch/arm/mach-w90x900/Kconfig"
-source "arch/arm/mach-bcmring/Kconfig"
-
-source "arch/arm/mach-ux500/Kconfig"
-
# Definitions to make life easier
config ARCH_ACORN
bool
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index e9da08483b3c..9e7582572741 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -146,6 +146,7 @@ machine-$(CONFIG_ARCH_MX1) := mx1
machine-$(CONFIG_ARCH_MX2) := mx2
machine-$(CONFIG_ARCH_MX25) := mx25
machine-$(CONFIG_ARCH_MX3) := mx3
+machine-$(CONFIG_ARCH_MXC91231) := mxc91231
machine-$(CONFIG_ARCH_NETX) := netx
machine-$(CONFIG_ARCH_NOMADIK) := nomadik
machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx
@@ -171,12 +172,12 @@ machine-$(CONFIG_ARCH_U8500) := ux500
machine-$(CONFIG_ARCH_VERSATILE) := versatile
machine-$(CONFIG_ARCH_W90X900) := w90x900
machine-$(CONFIG_FOOTBRIDGE) := footbridge
-machine-$(CONFIG_ARCH_MXC91231) := mxc91231
# Platform directory name. This list is sorted alphanumerically
# by CONFIG_* macro name.
plat-$(CONFIG_ARCH_MXC) := mxc
plat-$(CONFIG_ARCH_OMAP) := omap
+plat-$(CONFIG_ARCH_STMP3XXX) := stmp3xxx
plat-$(CONFIG_PLAT_IOP) := iop
plat-$(CONFIG_PLAT_NOMADIK) := nomadik
plat-$(CONFIG_PLAT_ORION) := orion
@@ -184,7 +185,6 @@ plat-$(CONFIG_PLAT_PXA) := pxa
plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx s3c samsung
plat-$(CONFIG_PLAT_S3C64XX) := s3c64xx s3c samsung
plat-$(CONFIG_PLAT_S5PC1XX) := s5pc1xx s3c samsung
-plat-$(CONFIG_ARCH_STMP3XXX) := stmp3xxx
ifeq ($(CONFIG_ARCH_EBSA110),y)
# This is what happens if you forget the IOCS16 line.
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index d356af7cef82..4fddc509e78e 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -27,6 +27,14 @@
.macro writeb, ch, rb
mcr p14, 0, \ch, c0, c5, 0
.endm
+#elif defined(CONFIG_CPU_V7)
+ .macro loadsp, rb
+ .endm
+ .macro writeb, ch, rb
+wait: mrc p14, 0, pc, c0, c1, 0
+ bcs wait
+ mcr p14, 0, \ch, c0, c5, 0
+ .endm
#elif defined(CONFIG_CPU_XSCALE)
.macro loadsp, rb
.endm
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 7e0fe4d42c7b..56a0d116d271 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -53,6 +53,18 @@ static void icedcc_putc(int ch)
asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch));
}
+
+#elif defined(CONFIG_CPU_V7)
+
+static void icedcc_putc(int ch)
+{
+ asm(
+ "wait: mrc p14, 0, pc, c0, c1, 0 \n\
+ bcs wait \n\
+ mcr p14, 0, %0, c0, c5, 0 "
+ : : "r" (ch));
+}
+
#elif defined(CONFIG_CPU_XSCALE)
static void icedcc_putc(int ch)
@@ -88,7 +100,6 @@ static void icedcc_putc(int ch)
#endif
#define putc(ch) icedcc_putc(ch)
-#define flush() do { } while (0)
#endif
static void putstr(const char *ptr)
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 730aefcfbee3..c77d2fa1f6e5 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -154,16 +154,16 @@
* Please note that the implementation of these, and the required
* effects are cache-type (VIVT/VIPT/PIPT) specific.
*
- * flush_cache_kern_all()
+ * flush_kern_all()
*
* Unconditionally clean and invalidate the entire cache.
*
- * flush_cache_user_mm(mm)
+ * flush_user_all()
*
* Clean and invalidate all user space cache entries
* before a change of page tables.
*
- * flush_cache_user_range(start, end, flags)
+ * flush_user_range(start, end, flags)
*
* Clean and invalidate a range of cache entries in the
* specified address space before a change of page tables.
@@ -179,6 +179,20 @@
* - start - virtual start address
* - end - virtual end address
*
+ * coherent_user_range(start, end)
+ *
+ * Ensure coherency between the Icache and the Dcache in the
+ * region described by start, end. If you have non-snooping
+ * Harvard caches, you need to implement this function.
+ * - start - virtual start address
+ * - end - virtual end address
+ *
+ * flush_kern_dcache_area(kaddr, size)
+ *
+ * Ensure that the data held in page is written back.
+ * - kaddr - page address
+ * - size - region size
+ *
* DMA Cache Coherency
* ===================
*
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index b121b6053cce..5c91addcaebc 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -49,6 +49,26 @@
1002:
.endm
+#elif defined(CONFIG_CPU_V7)
+
+ .macro addruart, rx
+ .endm
+
+ .macro senduart, rd, rx
+ mcr p14, 0, \rd, c0, c5, 0
+ .endm
+
+ .macro busyuart, rd, rx
+busy: mrc p14, 0, pc, c0, c1, 0
+ bcs busy
+ .endm
+
+ .macro waituart, rd, rx
+wait: mrc p14, 0, pc, c0, c1, 0
+ bcs wait
+
+ .endm
+
#elif defined(CONFIG_CPU_XSCALE)
.macro addruart, rx
diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index 950391f194c4..d4a0da1e48f4 100644
--- a/arch/arm/kernel/elf.c
+++ b/arch/arm/kernel/elf.c
@@ -78,15 +78,6 @@ int arm_elf_read_implies_exec(const struct elf32_hdr *x, int executable_stack)
return 1;
if (cpu_architecture() < CPU_ARCH_ARMv6)
return 1;
-#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
- /*
- * If we have support for OABI programs, we can never allow NX
- * support - our signal syscall restart mechanism relies upon
- * being able to execute code placed on the user stack.
- */
- return 1;
-#else
return 0;
-#endif
}
EXPORT_SYMBOL(arm_elf_read_implies_exec);
diff --git a/arch/arm/mach-gemini/include/mach/uncompress.h b/arch/arm/mach-gemini/include/mach/uncompress.h
index 59c5df7e716c..5483f61a8061 100644
--- a/arch/arm/mach-gemini/include/mach/uncompress.h
+++ b/arch/arm/mach-gemini/include/mach/uncompress.h
@@ -30,7 +30,9 @@ static inline void putc(char c)
UART[UART_TX] = c;
}
-#define flush() do { } while (0)
+static inline void flush(void)
+{
+}
/*
* nothing to do
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 1708da82da96..761ffede6a23 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1067,4 +1067,6 @@ void setup_mm_for_reboot(char mode)
pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1)));
flush_pmd_entry(pmd);
}
+
+ local_flush_tlb_all();
}
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 395cc90c6613..7a5337ed7d68 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -59,8 +59,6 @@ ENTRY(cpu_v6_proc_fin)
* to what would be the reset vector.
*
* - loc - location to jump to for soft reset
- *
- * It is assumed that:
*/
.align 5
ENTRY(cpu_v6_reset)
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 3a285218fd15..7aaf88a3b7aa 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -45,7 +45,14 @@ ENTRY(cpu_v7_proc_init)
ENDPROC(cpu_v7_proc_init)
ENTRY(cpu_v7_proc_fin)
- mov pc, lr
+ stmfd sp!, {lr}
+ cpsid if @ disable interrupts
+ bl v7_flush_kern_cache_all
+ mrc p15, 0, r0, c1, c0, 0 @ ctrl register
+ bic r0, r0, #0x1000 @ ...i............
+ bic r0, r0, #0x0006 @ .............ca.
+ mcr p15, 0, r0, c1, c0, 0 @ disable caches
+ ldmfd sp!, {pc}
ENDPROC(cpu_v7_proc_fin)
/*
@@ -56,8 +63,6 @@ ENDPROC(cpu_v7_proc_fin)
* to what would be the reset vector.
*
* - loc - location to jump to for soft reset
- *
- * It is assumed that:
*/
.align 5
ENTRY(cpu_v7_reset)
diff --git a/arch/arm/plat-mxc/include/mach/uncompress.h b/arch/arm/plat-mxc/include/mach/uncompress.h
index 4d5d395ad63b..d49384cb1e97 100644
--- a/arch/arm/plat-mxc/include/mach/uncompress.h
+++ b/arch/arm/plat-mxc/include/mach/uncompress.h
@@ -60,7 +60,9 @@ static void putc(int ch)
UART(TXR) = ch;
}
-#define flush() do { } while (0)
+static inline void flush(void)
+{
+}
#define MX1_UART1_BASE_ADDR 0x00206000
#define MX25_UART1_BASE_ADDR 0x43f90000