aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-09 13:08:20 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-09 13:08:20 -0700
commitd84c4124c4b6611301b402e8611b7e36de3bd351 (patch)
treed83cfaabfb901755d85074815ad948028dc7b03f
parent932c37c375cca25175f9b6acee4c75d7a96d985f (diff)
parenta3cf4ea8729a5d448742fd5a0a003827c9f25cb6 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix stacktrace simplification fallout. sh: SH7760 DMABRG support. sh: clockevent/clocksource/hrtimers/nohz TMU support. sh: Truncate MAX_ACTIVE_REGIONS for the common case. rtc: rtc-sh: Fix rtc_dev pointer for rtc_update_irq(). sh: Convert to common die chain. sh: Wire up utimensat syscall. sh: landisk mv_nr_irqs definition. sh: Fixup ndelay() xloops calculation for alternate HZ. sh: Add 32-bit opcode feature CPU flag. sh: Fix PC adjustments for varying opcode length. sh: Support for SH-2A 32-bit opcodes. sh: Kill off redundant __div64_32 symbol export. sh: Share exception vector table for SH-3/4. sh: Always define TRAPA_BUG_OPCODE. sh: __GFP_REPEAT for pte allocations, too. rtc: rtc-sh: Fix up dev_dbg() warnings. sh: generic quicklist support.
-rw-r--r--arch/sh/Kconfig29
-rw-r--r--arch/sh/boards/landisk/setup.c1
-rw-r--r--arch/sh/drivers/Makefile3
-rw-r--r--arch/sh/drivers/dma/Kconfig20
-rw-r--r--arch/sh/drivers/dma/Makefile4
-rw-r--r--arch/sh/drivers/dma/dmabrg.c196
-rw-r--r--arch/sh/kernel/cpu/sh2a/Makefile5
-rw-r--r--arch/sh/kernel/cpu/sh2a/opcode_helper.c55
-rw-r--r--arch/sh/kernel/cpu/sh2a/probe.c1
-rw-r--r--arch/sh/kernel/cpu/sh3/ex.S13
-rw-r--r--arch/sh/kernel/cpu/sh4/Makefile6
-rw-r--r--arch/sh/kernel/cpu/sh4/ex.S62
-rw-r--r--arch/sh/kernel/cpu/sh4/fpu.c3
-rw-r--r--arch/sh/kernel/process.c16
-rw-r--r--arch/sh/kernel/setup.c2
-rw-r--r--arch/sh/kernel/sh_ksyms.c2
-rw-r--r--arch/sh/kernel/signal.c13
-rw-r--r--arch/sh/kernel/stacktrace.c2
-rw-r--r--arch/sh/kernel/syscalls.S1
-rw-r--r--arch/sh/kernel/time.c172
-rw-r--r--arch/sh/kernel/timers/timer-tmu.c182
-rw-r--r--arch/sh/kernel/traps.c20
-rw-r--r--arch/sh/lib/delay.c5
-rw-r--r--arch/sh/mm/Kconfig7
-rw-r--r--arch/sh/mm/fault.c2
-rw-r--r--arch/sh/mm/init.c2
-rw-r--r--drivers/rtc/rtc-sh.c8
-rw-r--r--include/asm-sh/bug.h4
-rw-r--r--include/asm-sh/cpu-features.h1
-rw-r--r--include/asm-sh/dmabrg.h23
-rw-r--r--include/asm-sh/kdebug.h25
-rw-r--r--include/asm-sh/pgalloc.h44
-rw-r--r--include/asm-sh/system.h9
-rw-r--r--include/asm-sh/timer.h25
-rw-r--r--include/asm-sh/unistd.h5
-rw-r--r--mm/Kconfig2
36 files changed, 572 insertions, 398 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d74eb120a9c..038179ecf6a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -52,6 +52,9 @@ config GENERIC_IOMAP
config GENERIC_TIME
def_bool n
+config GENERIC_CLOCKEVENTS
+ def_bool n
+
config SYS_SUPPORTS_APM_EMULATION
bool
@@ -436,11 +439,11 @@ endmenu
menu "Timer and clock configuration"
-if !GENERIC_TIME
-
config SH_TMU
bool "TMU timer support"
depends on CPU_SH3 || CPU_SH4
+ select GENERIC_TIME
+ select GENERIC_CLOCKEVENTS
default y
help
This enables the use of the TMU as the system timer.
@@ -459,8 +462,6 @@ config SH_MTU2
help
This enables the use of the MTU2 as the system timer.
-endif
-
config SH_TIMER_IRQ
int
default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
@@ -468,24 +469,6 @@ config SH_TIMER_IRQ
default "140" if CPU_SUBTYPE_SH7206
default "16"
-config NO_IDLE_HZ
- bool "Dynamic tick timer"
- help
- Select this option if you want to disable continuous timer ticks
- and have them programmed to occur as required. This option saves
- power as the system can remain in idle state for longer.
-
- By default dynamic tick is disabled during the boot, and can be
- manually enabled with:
-
- echo 1 > /sys/devices/system/timer/timer0/dyn_tick
-
- Alternatively, if you want dynamic tick automatically enabled
- during boot, pass "dyntick=enable" via the kernel command string.
-
- Please note that dynamic tick may affect the accuracy of
- timekeeping on some platforms depending on the implementation.
-
config SH_PCLK_FREQ
int "Peripheral clock frequency (in Hz)"
default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
@@ -509,6 +492,8 @@ config SH_CLK_MD
help
MD2 - MD0 pin setting.
+source "kernel/time/Kconfig"
+
endmenu
menu "CPU Frequency scaling"
diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c
index a83a5d9587b..4058b4f50d4 100644
--- a/arch/sh/boards/landisk/setup.c
+++ b/arch/sh/boards/landisk/setup.c
@@ -93,6 +93,7 @@ static void __init landisk_setup(char **cmdline_p)
*/
struct sh_machine_vector mv_landisk __initmv = {
.mv_name = "LANDISK",
+ .mv_nr_irqs = 72,
.mv_setup = landisk_setup,
.mv_init_irq = init_landisk_IRQ,
};
diff --git a/arch/sh/drivers/Makefile b/arch/sh/drivers/Makefile
index 6cb92676c5f..e13f06bebd9 100644
--- a/arch/sh/drivers/Makefile
+++ b/arch/sh/drivers/Makefile
@@ -2,8 +2,9 @@
# Makefile for the Linux SuperH-specific device drivers.
#
+obj-y += dma/
+
obj-$(CONFIG_PCI) += pci/
-obj-$(CONFIG_SH_DMA) += dma/
obj-$(CONFIG_SUPERHYWAY) += superhyway/
obj-$(CONFIG_PUSH_SWITCH) += push-switch.o
obj-$(CONFIG_HEARTBEAT) += heartbeat.o
diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig
index defc13c37d4..99935f9daf4 100644
--- a/arch/sh/drivers/dma/Kconfig
+++ b/arch/sh/drivers/dma/Kconfig
@@ -1,12 +1,12 @@
menu "DMA support"
-config SH_DMA
- bool "DMA controller (DMAC) support"
- help
- Selecting this option will provide same API as PC's Direct Memory
- Access Controller(8237A) for SuperH DMAC.
+config SH_DMA_API
+ bool
- If unsure, say N.
+config SH_DMA
+ bool "SuperH on-chip DMA controller (DMAC) support"
+ select SH_DMA_API
+ default n
config NR_ONCHIP_DMA_CHANNELS
depends on SH_DMA
@@ -53,4 +53,12 @@ config DMA_PAGE_OPS_CHANNEL
in case channel 3 is unavailable. On the SH4, channels 1,2, and 3
are dual-address capable.
+config SH_DMABRG
+ bool "SH7760 DMABRG support"
+ depends on CPU_SUBTYPE_SH7760
+ help
+ The DMABRG does data transfers from main memory to Audio/USB units
+ of the SH7760.
+ Say Y if you want to use Audio/USB DMA on your SH7760 board.
+
endmenu
diff --git a/arch/sh/drivers/dma/Makefile b/arch/sh/drivers/dma/Makefile
index db1295d3226..1ac812d2448 100644
--- a/arch/sh/drivers/dma/Makefile
+++ b/arch/sh/drivers/dma/Makefile
@@ -2,8 +2,8 @@
# Makefile for the SuperH DMA specific kernel interface routines under Linux.
#
-obj-y += dma-api.o
+obj-$(CONFIG_SH_DMA_API) += dma-api.o dma-sysfs.o
obj-$(CONFIG_ISA_DMA_API) += dma-isa.o
-obj-$(CONFIG_SYSFS) += dma-sysfs.o
obj-$(CONFIG_SH_DMA) += dma-sh.o
obj-$(CONFIG_SH_DREAMCAST) += dma-pvr2.o dma-g2.o
+obj-$(CONFIG_SH_DMABRG) += dmabrg.o
diff --git a/arch/sh/drivers/dma/dmabrg.c b/arch/sh/drivers/dma/dmabrg.c
new file mode 100644
index 00000000000..9d0a29370f2
--- /dev/null
+++ b/arch/sh/drivers/dma/dmabrg.c
@@ -0,0 +1,196 @@
+/*
+ * SH7760 DMABRG IRQ handling
+ *
+ * (c) 2007 MSC Vertriebsges.m.b.H, Manuel Lauss <mlau@msc-ge.com>
+ * licensed under the GPLv2.
+ *
+ */
+
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <asm/dma.h>
+#include <asm/dmabrg.h>
+#include <asm/io.h>
+
+/*
+ * The DMABRG is a special DMA unit within the SH7760. It does transfers
+ * from USB-SRAM/Audio units to main memory (and also the LCDC; but that
+ * part is sensibly placed in the LCDC registers and requires no irqs)
+ * It has 3 IRQ lines which trigger 10 events, and works independently
+ * from the traditional SH DMAC (although it blocks usage of DMAC 0)
+ *
+ * BRGIRQID | component | dir | meaning | source
+ * -----------------------------------------------------
+ * 0 | USB-DMA | ... | xfer done | DMABRGI1
+ * 1 | USB-UAE | ... | USB addr err.| DMABRGI0
+ * 2 | HAC0/SSI0 | play| all done | DMABRGI1
+ * 3 | HAC0/SSI0 | play| half done | DMABRGI2
+ * 4 | HAC0/SSI0 | rec | all done | DMABRGI1
+ * 5 | HAC0/SSI0 | rec | half done | DMABRGI2
+ * 6 | HAC1/SSI1 | play| all done | DMABRGI1
+ * 7 | HAC1/SSI1 | play| half done | DMABRGI2
+ * 8 | HAC1/SSI1 | rec | all done | DMABRGI1
+ * 9 | HAC1/SSI1 | rec | half done | DMABRGI2
+ *
+ * all can be enabled/disabled in the DMABRGCR register,
+ * as well as checked if they occured.
+ *
+ * DMABRGI0 services USB DMA Address errors, but it still must be
+ * enabled/acked in the DMABRGCR register. USB-DMA complete indicator
+ * is grouped together with the audio buffer end indicators, too bad...
+ *
+ * DMABRGCR: Bits 31-24: audio-dma ENABLE flags,
+ * Bits 23-16: audio-dma STATUS flags,
+ * Bits 9-8: USB error/xfer ENABLE,
+ * Bits 1-0: USB error/xfer STATUS.
+ * Ack an IRQ by writing 0 to the STATUS flag.
+ * Mask IRQ by writing 0 to ENABLE flag.
+ *
+ * Usage is almost like with any other IRQ:
+ * dmabrg_request_irq(BRGIRQID, handler, data)
+ * dmabrg_free_irq(BRGIRQID)
+ *
+ * handler prototype: void brgirqhandler(void *data)
+ */
+
+#define DMARSRA 0xfe090000
+#define DMAOR 0xffa00040
+#define DMACHCR0 0xffa0000c
+#define DMABRGCR 0xfe3c0000
+
+#define DMAOR_BRG 0x0000c000
+#define DMAOR_DMEN 0x00000001
+
+#define DMABRGI0 68
+#define DMABRGI1 69
+#define DMABRGI2 70
+
+struct dmabrg_handler {
+ void (*handler)(void *);
+ void *data;
+} *dmabrg_handlers;
+
+static inline void dmabrg_call_handler(int i)
+{
+ dmabrg_handlers[i].handler(dmabrg_handlers[i].data);
+}
+
+/*
+ * main DMABRG irq handler. It acks irqs and then
+ * handles every set and unmasked bit sequentially.
+ * No locking and no validity checks; it should be
+ * as fast as possible (audio!)
+ */
+static irqreturn_t dmabrg_irq(int irq, void *data)
+{
+ unsigned long dcr;
+ unsigned int i;
+
+ dcr = ctrl_inl(DMABRGCR);
+ ctrl_outl(dcr & ~0x00ff0003, DMABRGCR); /* ack all */
+ dcr &= dcr >> 8; /* ignore masked */
+
+ /* USB stuff, get it out of the way first */
+ if (dcr & 1)
+ dmabrg_call_handler(DMABRGIRQ_USBDMA);
+ if (dcr & 2)
+ dmabrg_call_handler(DMABRGIRQ_USBDMAERR);
+
+ /* Audio */
+ dcr >>= 16;
+ while (dcr) {
+ i = __ffs(dcr);
+ dcr &= dcr - 1;
+ dmabrg_call_handler(i + DMABRGIRQ_A0TXF);
+ }
+ return IRQ_HANDLED;
+}
+
+static void dmabrg_disable_irq(unsigned int dmairq)
+{
+ unsigned long dcr;
+ dcr = ctrl_inl(DMABRGCR);
+ dcr &= ~(1 << ((dmairq > 1) ? dmairq + 22 : dmairq + 8));
+ ctrl_outl(dcr, DMABRGCR);
+}
+
+static void dmabrg_enable_irq(unsigned int dmairq)
+{
+ unsigned long dcr;
+ dcr = ctrl_inl(DMABRGCR);
+ dcr |= (1 << ((dmairq > 1) ? dmairq + 22 : dmairq + 8));
+ ctrl_outl(dcr, DMABRGCR);
+}
+
+int dmabrg_request_irq(unsigned int dmairq, void(*handler)(void*),
+ void *data)
+{
+ if ((dmairq > 9) || !handler)
+ return -ENOENT;
+ if (dmabrg_handlers[dmairq].handler)
+ return -EBUSY;
+
+ dmabrg_handlers[dmairq].handler = handler;
+ dmabrg_handlers[dmairq].data = data;
+
+ dmabrg_enable_irq(dmairq);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(dmabrg_request_irq);
+
+void dmabrg_free_irq(unsigned int dmairq)
+{
+ if (likely(dmairq < 10)) {
+ dmabrg_disable_irq(dmairq);
+ dmabrg_handlers[dmairq].handler = NULL;
+ dmabrg_handlers[dmairq].data = NULL;
+ }
+}
+EXPORT_SYMBOL_GPL(dmabrg_free_irq);
+
+static int __init dmabrg_init(void)
+{
+ unsigned long or;
+ int ret;
+
+ dmabrg_handlers = kzalloc(10 * sizeof(struct dmabrg_handler),
+ GFP_KERNEL);
+ if (!dmabrg_handlers)
+ return -ENOMEM;
+
+#ifdef CONFIG_SH_DMA
+ /* request DMAC channel 0 before anyone else can get it */
+ ret = request_dma(0, "DMAC 0 (DMABRG)");
+ if (ret < 0)
+ printk(KERN_INFO "DMABRG: DMAC ch0 not reserved!\n");
+#endif
+
+ ctrl_outl(0, DMABRGCR);
+ ctrl_outl(0, DMACHCR0);
+ ctrl_outl(0x94000000, DMARSRA); /* enable DMABRG in DMAC 0 */
+
+ /* enable DMABRG mode, enable the DMAC */
+ or = ctrl_inl(DMAOR);
+ ctrl_outl(or | DMAOR_BRG | DMAOR_DMEN, DMAOR);
+
+ ret = request_irq(DMABRGI0, dmabrg_irq, IRQF_DISABLED,
+ "DMABRG USB address error", NULL);
+ if (ret)
+ goto out0;
+
+ ret = request_irq(DMABRGI1, dmabrg_irq, IRQF_DISABLED,
+ "DMABRG Transfer End", NULL);
+ if (ret)
+ goto out1;
+
+ ret = request_irq(DMABRGI2, dmabrg_irq, IRQF_DISABLED,
+ "DMABRG Transfer Half", NULL);
+ if (ret == 0)
+ return ret;
+
+ free_irq(DMABRGI1, 0);
+out1: free_irq(DMABRGI0, 0);
+out0: kfree(dmabrg_handlers);
+ return ret;
+}
+subsys_initcall(dmabrg_init);
diff --git a/arch/sh/kernel/cpu/sh2a/Makefile b/arch/sh/kernel/cpu/sh2a/Makefile
index 350972ae941..965fa2572b2 100644
--- a/arch/sh/kernel/cpu/sh2a/Makefile
+++ b/arch/sh/kernel/cpu/sh2a/Makefile
@@ -2,9 +2,8 @@
# Makefile for the Linux/SuperH SH-2A backends.
#
-obj-y := common.o probe.o
+obj-y := common.o probe.o opcode_helper.o
-common-y += $(addprefix ../sh2/, ex.o)
-common-y += $(addprefix ../sh2/, entry.o)
+common-y += $(addprefix ../sh2/, ex.o entry.o)
obj-$(CONFIG_CPU_SUBTYPE_SH7206) += setup-sh7206.o clock-sh7206.o
diff --git a/arch/sh/kernel/cpu/sh2a/opcode_helper.c b/arch/sh/kernel/cpu/sh2a/opcode_helper.c
new file mode 100644
index 00000000000..9704b7926d8
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh2a/opcode_helper.c
@@ -0,0 +1,55 @@
+/*
+ * arch/sh/kernel/cpu/sh2a/opcode_helper.c
+ *
+ * Helper for the SH-2A 32-bit opcodes.
+ *
+ * Copyright (C) 2007 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/kernel.h>
+#include <asm/system.h>
+
+/*
+ * Instructions on SH are generally fixed at 16-bits, however, SH-2A
+ * introduces some 32-bit instructions. Since there are no real
+ * constraints on their use (and they can be mixed and matched), we need
+ * to check the instruction encoding to work out if it's a true 32-bit
+ * instruction or not.
+ *
+ * Presently, 32-bit opcodes have only slight variations in what the
+ * actual encoding looks like in the first-half of the instruction, which
+ * makes it fairly straightforward to differentiate from the 16-bit ones.
+ *
+ * First 16-bits of encoding Used by
+ *
+ * 0011nnnnmmmm0001 mov.b, mov.w, mov.l, fmov.d,
+ * fmov.s, movu.b, movu.w
+ *
+ * 0011nnnn0iii1001 bclr.b, bld.b, bset.b, bst.b, band.b,
+ * bandnot.b, bldnot.b, bor.b, bornot.b,
+ * bxor.b
+ *
+ * 0000nnnniiii0000 movi20
+ * 0000nnnniiii0001 movi20s
+ */
+unsigned int instruction_size(unsigned int insn)
+{
+ /* Look for the common cases */
+ switch ((insn & 0xf00f)) {
+ case 0x0000: /* movi20 */
+ case 0x0001: /* movi20s */
+ case 0x3001: /* 32-bit mov/fmov/movu variants */
+ return 4;
+ }
+
+ /* And the special cases.. */
+ switch ((insn & 0xf08f)) {
+ case 0x3009: /* 32-bit b*.b bit operations */
+ return 4;
+ }
+
+ return 2;
+}
diff --git a/arch/sh/kernel/cpu/sh2a/probe.c b/arch/sh/kernel/cpu/sh2a/probe.c
index 426f6db01fc..f455c350978 100644
--- a/arch/sh/kernel/cpu/sh2a/probe.c
+++ b/arch/sh/kernel/cpu/sh2a/probe.c
@@ -18,6 +18,7 @@ int __init detect_cpu_and_cache_system(void)
{
/* Just SH7206 for now .. */
current_cpu_data.type = CPU_SH7206;
+ current_cpu_data.flags |= CPU_HAS_OP32;
current_cpu_data.dcache.ways = 4;
current_cpu_data.dcache.way_incr = (1 << 11);
diff --git a/arch/sh/kernel/cpu/sh3/ex.S b/arch/sh/kernel/cpu/sh3/ex.S
index ba3082d640b..2b2a9e02fb7 100644
--- a/arch/sh/kernel/cpu/sh3/ex.S
+++ b/arch/sh/kernel/cpu/sh3/ex.S
@@ -1,7 +1,7 @@
/*
* arch/sh/kernel/cpu/sh3/ex.S
*
- * The SH-3 exception vector table.
+ * The SH-3 and SH-4 exception vector table.
* Copyright (C) 1999, 2000, 2002 Niibe Yutaka
* Copyright (C) 2003 - 2006 Paul Mundt
@@ -9,7 +9,6 @@
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
- *
*/
#include <linux/linkage.h>
@@ -36,8 +35,12 @@ ENTRY(exception_handling_table)
.long exception_error ! address error load
.long exception_error ! address error store /* 100 */
#endif
- .long exception_error ! fpu_exception /* 120 */
- .long exception_error /* 140 */
+#if defined(CONFIG_SH_FPU)
+ .long do_fpu_error /* 120 */
+#else
+ .long exception_error /* 120 */
+#endif
+ .long exception_error /* 140 */
.long system_call ! Unconditional Trap /* 160 */
.long exception_error ! reserved_instruction (filled by trap_init) /* 180 */
.long exception_error ! illegal_slot_instruction (filled by trap_init) /*1A0*/
@@ -55,4 +58,4 @@ ENTRY(user_break_point_trap)
* away offsets can be manually inserted in to their appropriate
* location via set_exception_table_{evt,vec}().
*/
- .balign 4096,0,4096
+ .balign 4096,0,4096
diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile
index 19ca68c7188..8add10bd826 100644
--- a/arch/sh/kernel/cpu/sh4/Makefile
+++ b/arch/sh/kernel/cpu/sh4/Makefile
@@ -2,10 +2,10 @@
# Makefile for the Linux/SuperH SH-4 backends.
#
-obj-y := ex.o probe.o common.o
-common-y += $(addprefix ../sh3/, entry.o)
+obj-y := probe.o common.o
+common-y += $(addprefix ../sh3/, entry.o ex.o)
-obj-$(CONFIG_SH_FPU) += fpu.o
+obj-$(CONFIG_SH_FPU) += fpu.o
obj-$(CONFIG_SH_STORE_QUEUES) += sq.o
# CPU subtype setup
diff --git a/arch/sh/kernel/cpu/sh4/ex.S b/arch/sh/kernel/cpu/sh4/ex.S
deleted file mode 100644
index ac8ab57413c..00000000000
--- a/arch/sh/kernel/cpu/sh4/ex.S
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * arch/sh/kernel/cpu/sh4/ex.S
- *
- * The SH-4 exception vector table.
-
- * Copyright (C) 1999, 2000, 2002 Niibe Yutaka
- * Copyright (C) 2003 - 2006 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-#include <linux/linkage.h>
-
- .align 2
- .data
-
-ENTRY(exception_handling_table)
- .long exception_error /* 000 */
- .long exception_error
-#if defined(CONFIG_MMU)
- .long tlb_miss_load /* 040 */
- .long tlb_miss_store
- .long initial_page_write
- .long tlb_protection_violation_load
- .long tlb_protection_violation_store
- .long address_error_load
- .long address_error_store /* 100 */
-#else
- .long exception_error ! tlb miss load /* 040 */
- .long exception_error ! tlb miss store
- .long exception_error ! initial page write
- .long exception_error ! tlb prot violation load
- .long exception_error ! tlb prot violation store
- .long exception_error ! address error load
- .long exception_error ! address error store /* 100 */
-#endif
-#if defined(CONFIG_SH_FPU)
- .long do_fpu_error /* 120 */
-#else
- .long exception_error /* 120 */
-#endif
- .long exception_error /* 140 */
- .long system_call ! Unconditional Trap /* 160 */
- .long exception_error ! reserved_instruction (filled by trap_init) /* 180 */
- .long exception_error ! illegal_slot_instruction (filled by trap_init) /*1A0*/
-ENTRY(nmi_slot)
-#if defined (CONFIG_KGDB_NMI)
- .long debug_enter /* 1C0 */ ! Allow trap to debugger
-#else
- .long exception_none /* 1C0 */ ! Not implemented yet
-#endif
-ENTRY(user_break_point_trap)
- .long break_point_trap /* 1E0 */
-
- /*
- * Pad the remainder of the table out, exceptions residing in far
- * away offsets can be manually inserted in to their appropriate
- * location via set_exception_table_{evt,vec}().
- */
- .balign 4096,0,4096
diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c
index 7624677f662..d61dd599169 100644
--- a/arch/sh/kernel/cpu/sh4/fpu.c
+++ b/arch/sh/kernel/cpu/sh4/fpu.c
@@ -16,6 +16,7 @@
#include <linux/sched.h>
#include <linux/signal.h>
#include <asm/processor.h>
+#include <asm/system.h>
#include <asm/io.h>
/* The PR (precision) bit in the FP Status Register must be clear when
@@ -265,7 +266,7 @@ ieee_fpe_handler (struct pt_regs *regs)
nextpc = regs->pr;
finsn = *(unsigned short *) (regs->pc + 2);
} else {
- nextpc = regs->pc + 2;
+ nextpc = regs->pc + instruction_size(insn);
finsn = insn;
}
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 329b3f3051d..6b4f5748d0b 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -15,9 +15,12 @@
#include <linux/pm.h>
#include <linux/kallsyms.h>
#include <linux/kexec.h>
-#include <asm/kdebug.h>
+#include <linux/kdebug.h>
+#include <linux/tick.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
+#include <asm/pgalloc.h>
+#include <asm/system.h>
#include <asm/ubc.h>
static int hlt_counter;
@@ -58,12 +61,15 @@ void cpu_idle(void)
if (!idle)
idle = default_idle;
+ tick_nohz_stop_sched_tick();
while (!need_resched())
idle();
+ tick_nohz_restart_sched_tick();
preempt_enable_no_resched();
schedule();
preempt_disable();
+ check_pgt_cache();
}
}
@@ -495,9 +501,9 @@ asmlinkage void debug_trap_handler(unsigned long r4, unsigned long r5,
struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
/* Rewind */
- regs->pc -= 2;
+ regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
- if (notify_die(DIE_TRAP, regs, regs->tra & 0xff,
+ if (notify_die(DIE_TRAP, "debug trap", regs, 0, regs->tra & 0xff,
SIGTRAP) == NOTIFY_STOP)
return;
@@ -514,9 +520,9 @@ asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5,
struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
/* Rewind */
- regs->pc -= 2;
+ regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
- if (notify_die(DIE_TRAP, regs, TRAPA_BUG_OPCODE & 0xff,
+ if (notify_die(DIE_TRAP, "bug trap", regs, 0, TRAPA_BUG_OPCODE & 0xff,
SIGTRAP) == NOTIFY_STOP)
return;
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 477d2a854fc..c2772913593 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -431,7 +431,7 @@ const char *get_cpu_subtype(struct sh_cpuinfo *c)
/* Symbolic CPU flags, keep in sync with asm/cpu-features.h */
static const char *cpu_flags[] = {
"none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr",
- "ptea", "llsc", "l2", NULL
+ "ptea", "llsc", "l2", "op32", NULL
};
static void show_cpuflags(struct seq_file *m, struct sh_cpuinfo *c)
diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c
index fa91641c1f6..c1cfcb9f047 100644
--- a/arch/sh/kernel/sh_ksyms.c
+++ b/arch/sh/kernel/sh_ksyms.c
@@ -58,8 +58,6 @@ EXPORT_SYMBOL(__udelay);
EXPORT_SYMBOL(__ndelay);
EXPORT_SYMBOL(__const_udelay);
-EXPORT_SYMBOL(__div64_32);
-
#define DECLARE_EXPORT(name) extern void name(void);EXPORT_SYMBOL(name)
/* These symbols are generated by the compiler itself */
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c
index eb0191c374b..b32c35a7c0a 100644
--- a/arch/sh/kernel/signal.c
+++ b/arch/sh/kernel/signal.c
@@ -23,7 +23,7 @@
#include <linux/personality.h>
#include <linux/binfmts.h>
#include <linux/freezer.h>
-
+#include <asm/system.h>
#include <asm/ucontext.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
@@ -500,7 +500,9 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
}
/* fallthrough */
case -ERESTARTNOINTR:
- regs->pc -= 2;
+ regs->pc -= instruction_size(
+ ctrl_inw(regs->pc - 4));
+ break;
}
} else {
/* gUSA handling */
@@ -516,7 +518,8 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
regs->regs[15] = regs->regs[1];
if (regs->pc < regs->regs[0])
/* Go to rewind point #1 */
- regs->pc = regs->regs[0] + offset - 2;
+ regs->pc = regs->regs[0] + offset -
+ instruction_size(ctrl_inw(regs->pc-4));
}
#ifdef CONFIG_PREEMPT
local_irq_restore(flags);
@@ -600,9 +603,9 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0)
regs->regs[0] == -ERESTARTSYS ||
regs->regs[0] == -ERESTARTNOINTR) {
regs->regs[0] = save_r0;
- regs->pc -= 2;
+ regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
} else if (regs->regs[0] == -ERESTART_RESTARTBLOCK) {
- regs->pc -= 2;
+ regs->pc -= instruction_size(ctrl_inw(regs->pc - 4));
regs->regs[3] = __NR_restart_syscall;
}
}
diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c
index 4bdd2f83535..d41e561be20 100644
--- a/arch/sh/kernel/stacktrace.c
+++ b/arch/sh/kernel/stacktrace.c
@@ -17,7 +17,7 @@
/*
* Save stack-backtrace addresses into a stack_trace buffer.
*/
-void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
+void save_stack_trace(struct stack_trace *trace)
{
unsigned long *sp = (unsigned long *)current_stack_pointer;
diff --git a/arch/sh/kernel/syscalls.S b/arch/sh/kernel/syscalls.S
index 38fc8cd3ea3..4357d1a6358 100644
--- a/arch/sh/kernel/syscalls.S
+++ b/arch/sh/kernel/syscalls.S
@@ -354,3 +354,4 @@ ENTRY(sys_call_table)
.long sys_move_pages
.long sys_getcpu
.long sys_epoll_pwait
+ .long sys_utimensat /* 320 */
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index d47e775962e..a3a67d151e5 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -3,7 +3,7 @@
*
* Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka
* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
- * Copyright (C) 2002 - 2006 Paul Mundt
+ * Copyright (C) 2002 - 2007 Paul Mundt
* Copyright (C) 2002 M. R. Brown <mrbrown@linux-sh.org>
*
* Some code taken from i386 version.
@@ -15,6 +15,7 @@
#include <linux/profile.h>
#include <linux/timex.h>
#include <linux/sched.h>
+#include <linux/clockchips.h>
#include <asm/clock.h>
#include <asm/rtc.h>
#include <asm/timer.h>
@@ -38,6 +39,14 @@ static int null_rtc_set_time(const time_t secs)
return 0;
}
+/*