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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-23 11:52:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-23 11:52:16 -0700
commit626f380d0b264a1e40237f5a2a3dffc5d14f256e (patch)
tree456889d94d219628c225ccef3ad4f2af0475cbf4
parent32708e8e95265505d9627b3bc9ed16566e0dca1c (diff)
parentbb38c222e07cbe252cfbd99cd6a9c834b0a2639a (diff)
downloadconfigs-626f380d0b264a1e40237f5a2a3dffc5d14f256e.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix up HAVE_PERF_COUNTERS typo. sh: Fix up more dma-mapping fallout. sh: SH7786 SMP support. sh: Wire up the uncached fixmap on sh64 as well. sh: Use local TLB flush in set_pte_phys(). sh: Provide cpu_idle_wait() to fix up cpuidle/SMP build.
-rw-r--r--arch/sh/Kconfig12
-rw-r--r--arch/sh/include/asm/dma-mapping.h12
-rw-r--r--arch/sh/include/asm/system.h1
-rw-r--r--arch/sh/kernel/cpu/sh4a/Makefile6
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7786.c29
-rw-r--r--arch/sh/kernel/idle.c23
-rw-r--r--arch/sh/mm/init.c4
7 files changed, 52 insertions, 35 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ac1c620d1c7..e2bdd7b94fd 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -15,7 +15,7 @@ config SUPERH
select HAVE_IOREMAP_PROT if MMU
select HAVE_ARCH_TRACEHOOK
select HAVE_DMA_API_DEBUG
- select HAVE_PERF_COUNTER
+ select HAVE_PERF_COUNTERS
select RTC_LIB
select GENERIC_ATOMIC64
help
@@ -71,6 +71,9 @@ config GENERIC_HARDIRQS_NO__DO_IRQ
config GENERIC_IRQ_PROBE
def_bool y
+config IRQ_PER_CPU
+ def_bool y
+
config GENERIC_GPIO
def_bool n
@@ -151,6 +154,9 @@ config ARCH_NO_VIRT_TO_BUS
config ARCH_HAS_DEFAULT_IDLE
def_bool y
+config ARCH_HAS_CPU_IDLE_WAIT
+ def_bool y
+
config IO_TRAPPED
bool
@@ -411,6 +417,8 @@ config CPU_SUBTYPE_SH7786
select CPU_HAS_PTEAEX
select ARCH_SPARSEMEM_ENABLE
select SYS_SUPPORTS_NUMA
+ select SYS_SUPPORTS_SMP
+ select GENERIC_CLOCKEVENTS_BROADCAST if SMP
config CPU_SUBTYPE_SHX3
bool "Support SH-X3 processor"
@@ -648,7 +656,7 @@ config NR_CPUS
int "Maximum number of CPUs (2-32)"
range 2 32
depends on SMP
- default "4" if CPU_SHX3
+ default "4" if CPU_SUBTYPE_SHX3
default "2"
help
This allows you to specify the maximum number of CPUs which this
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index ea9d4f41c9d..69d56dd4c96 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -97,7 +97,7 @@ static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
dma_unmap_single(dev, dma_address, size, dir);
}
-static inline void dma_sync_single(struct device *dev, dma_addr_t dma_handle,
+static inline void __dma_sync_single(struct device *dev, dma_addr_t dma_handle,
size_t size, enum dma_data_direction dir)
{
#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
@@ -119,7 +119,7 @@ static inline void dma_sync_single_range(struct device *dev,
dma_cache_sync(dev, phys_to_virt(dma_handle) + offset, size, dir);
}
-static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg,
+static inline void __dma_sync_sg(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction dir)
{
int i;
@@ -137,7 +137,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle, size_t size,
enum dma_data_direction dir)
{
- dma_sync_single(dev, dma_handle, size, dir);
+ __dma_sync_single(dev, dma_handle, size, dir);
debug_dma_sync_single_for_cpu(dev, dma_handle, size, dir);
}
@@ -146,7 +146,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
size_t size,
enum dma_data_direction dir)
{
- dma_sync_single(dev, dma_handle, size, dir);
+ __dma_sync_single(dev, dma_handle, size, dir);
debug_dma_sync_single_for_device(dev, dma_handle, size, dir);
}
@@ -177,7 +177,7 @@ static inline void dma_sync_sg_for_cpu(struct device *dev,
struct scatterlist *sg, int nelems,
enum dma_data_direction dir)
{
- dma_sync_sg(dev, sg, nelems, dir);
+ __dma_sync_sg(dev, sg, nelems, dir);
debug_dma_sync_sg_for_cpu(dev, sg, nelems, dir);
}
@@ -185,7 +185,7 @@ static inline void dma_sync_sg_for_device(struct device *dev,
struct scatterlist *sg, int nelems,
enum dma_data_direction dir)
{
- dma_sync_sg(dev, sg, nelems, dir);
+ __dma_sync_sg(dev, sg, nelems, dir);
debug_dma_sync_sg_for_device(dev, sg, nelems, dir);
}
diff --git a/arch/sh/include/asm/system.h b/arch/sh/include/asm/system.h
index a88895e6dcb..ab79e1f4fbe 100644
--- a/arch/sh/include/asm/system.h
+++ b/arch/sh/include/asm/system.h
@@ -154,6 +154,7 @@ extern struct dentry *sh_debugfs_root;
void per_cpu_trap_init(void);
void default_idle(void);
+void cpu_idle_wait(void);
asmlinkage void break_point_trap(void);
diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile
index 96ea09ca8cc..ebdd391d5f4 100644
--- a/arch/sh/kernel/cpu/sh4a/Makefile
+++ b/arch/sh/kernel/cpu/sh4a/Makefile
@@ -16,7 +16,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7366) += setup-sh7366.o
obj-$(CONFIG_CPU_SUBTYPE_SHX3) += setup-shx3.o
# SMP setup
-smp-$(CONFIG_CPU_SUBTYPE_SHX3) := smp-shx3.o
+smp-$(CONFIG_CPU_SHX3) := smp-shx3.o
# Primary on-chip clocks (common)
clock-$(CONFIG_CPU_SUBTYPE_SH7763) := clock-sh7763.o
@@ -38,6 +38,6 @@ pinmux-$(CONFIG_CPU_SUBTYPE_SH7724) := pinmux-sh7724.o
pinmux-$(CONFIG_CPU_SUBTYPE_SH7785) := pinmux-sh7785.o
pinmux-$(CONFIG_CPU_SUBTYPE_SH7786) := pinmux-sh7786.o
-obj-y += $(clock-y)
-obj-$(CONFIG_SMP) += $(smp-y)
+obj-y += $(clock-y)
+obj-$(CONFIG_SMP) += $(smp-y)
obj-$(CONFIG_GENERIC_GPIO) += $(pinmux-y)
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 93e0d2c017e..b70049470a0 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -595,9 +595,8 @@ enum {
HSPI,
GPIO0, GPIO1,
Thermal,
- INTC0, INTC1, INTC2, INTC3, INTC4, INTC5, INTC6, INTC7,
-
- /* interrupt groups */
+ INTICI0, INTICI1, INTICI2, INTICI3,
+ INTICI4, INTICI5, INTICI6, INTICI7,
};
static struct intc_vect vectors[] __initdata = {
@@ -638,10 +637,12 @@ static struct intc_vect vectors[] __initdata = {
INTC_VECT(HSPI, 0xe80),
INTC_VECT(GPIO0, 0xea0), INTC_VECT(GPIO1, 0xec0),
INTC_VECT(Thermal, 0xee0),
+ INTC_VECT(INTICI0, 0xf00), INTC_VECT(INTICI1, 0xf20),
+ INTC_VECT(INTICI2, 0xf40), INTC_VECT(INTICI3, 0xf60),
+ INTC_VECT(INTICI4, 0xf80), INTC_VECT(INTICI5, 0xfa0),
+ INTC_VECT(INTICI6, 0xfc0), INTC_VECT(INTICI7, 0xfe0),
};
-/* FIXME: Main CPU support only now */
-#if 1 /* Main CPU */
#define CnINTMSK0 0xfe410030
#define CnINTMSK1 0xfe410040
#define CnINTMSKCLR0 0xfe410050
@@ -654,21 +655,6 @@ static struct intc_vect vectors[] __initdata = {
#define CnINT2MSKCR1 0xfe410a34
#define CnINT2MSKCR2 0xfe410a38
#define CnINT2MSKCR3 0xfe410a3c
-#else /* Sub CPU */
-#define CnINTMSK0 0xfe410034
-#define CnINTMSK1 0xfe410044
-#define CnINTMSKCLR0 0xfe410054
-#define CnINTMSKCLR1 0xfe410064
-#define CnINT2MSKR0 0xfe410b20
-#define CnINT2MSKR1 0xfe410b24
-#define CnINT2MSKR2 0xfe410b28
-#define CnINT2MSKR3 0xfe410b2c
-#define CnINT2MSKCR0 0xfe410b30
-#define CnINT2MSKCR1 0xfe410b34
-#define CnINT2MSKCR2 0xfe410b38
-#define CnINT2MSKCR3 0xfe410b3c
-#endif
-
#define INTMSK2 0xfe410068
#define INTMSKCLR2 0xfe41006c
@@ -753,6 +739,9 @@ static struct intc_prio_reg prio_registers[] __initdata = {
GPIO1, Thermal } },
{ 0xfe41085c, 0, 32, 8, /* INT2PRI23 */ { 0, 0, 0, 0 } },
{ 0xfe410860, 0, 32, 8, /* INT2PRI24 */ { 0, 0, 0, 0 } },
+ { 0xfe410090, 0xfe4100a0, 32, 4, /* CnICIPRI / CnICIPRICLR */
+ { INTICI7, INTICI6, INTICI5, INTICI4,
+ INTICI3, INTICI2, INTICI1, INTICI0 }, INTC_SMP(4, 2) },
};
static DECLARE_INTC_DESC(intc_desc, "sh7786", vectors, NULL,
diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c
index f35ed034885..27ff2dc093c 100644
--- a/arch/sh/kernel/idle.c
+++ b/arch/sh/kernel/idle.c
@@ -1,7 +1,7 @@
/*
* The idle loop for all SuperH platforms.
*
- * Copyright (C) 2002 - 2008 Paul Mundt
+ * Copyright (C) 2002 - 2009 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
@@ -15,6 +15,7 @@
#include <linux/preempt.h>
#include <linux/thread_info.h>
#include <linux/irqflags.h>
+#include <linux/smp.h>
#include <asm/pgalloc.h>
#include <asm/system.h>
#include <asm/atomic.h>
@@ -79,3 +80,23 @@ void cpu_idle(void)
check_pgt_cache();
}
}
+
+static void do_nothing(void *unused)
+{
+}
+
+/*
+ * cpu_idle_wait - Used to ensure that all the CPUs discard old value of
+ * pm_idle and update to new pm_idle value. Required while changing pm_idle
+ * handler on SMP systems.
+ *
+ * Caller must have changed pm_idle to the new value before the call. Old
+ * pm_idle value will not be used by any CPU after the return of this function.
+ */
+void cpu_idle_wait(void)
+{
+ smp_mb();
+ /* kick all the CPUs so that they exit out of pm_idle */
+ smp_call_function(do_nothing, NULL, 1);
+}
+EXPORT_SYMBOL_GPL(cpu_idle_wait);
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index ee8e6bbe882..fe532aeaa16 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -70,7 +70,7 @@ static void set_pte_phys(unsigned long addr, unsigned long phys, pgprot_t prot)
}
set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, prot));
- flush_tlb_one(get_asid(), addr);
+ local_flush_tlb_one(get_asid(), addr);
}
/*
@@ -177,10 +177,8 @@ void __init paging_init(void)
free_area_init_nodes(max_zone_pfns);
-#ifdef CONFIG_SUPERH32
/* Set up the uncached fixmap */
set_fixmap_nocache(FIX_UNCACHED, __pa(&__uncached_start));
-#endif
}
static struct kcore_list kcore_mem, kcore_vmalloc;