aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/mm/c-r3k.c6
-rw-r--r--arch/mips/mm/page.c61
-rw-r--r--arch/mips/mm/sc-rm7k.c4
-rw-r--r--arch/powerpc/kernel/legacy_serial.c5
-rw-r--r--arch/powerpc/kernel/of_platform.c2
-rw-r--r--arch/um/Makefile1
-rw-r--r--arch/um/Makefile-i3867
-rw-r--r--arch/um/Makefile-x86_643
-rw-r--r--arch/x86/kernel/.gitignore1
-rw-r--r--arch/x86/mm/ioremap.c25
-rw-r--r--arch/x86/pci/common.c8
11 files changed, 81 insertions, 42 deletions
diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c
index 76935e32021..27a5b466c85 100644
--- a/arch/mips/mm/c-r3k.c
+++ b/arch/mips/mm/c-r3k.c
@@ -26,7 +26,7 @@
static unsigned long icache_size, dcache_size; /* Size in bytes */
static unsigned long icache_lsize, dcache_lsize; /* Size in bytes */
-unsigned long __init r3k_cache_size(unsigned long ca_flags)
+unsigned long __cpuinit r3k_cache_size(unsigned long ca_flags)
{
unsigned long flags, status, dummy, size;
volatile unsigned long *p;
@@ -61,7 +61,7 @@ unsigned long __init r3k_cache_size(unsigned long ca_flags)
return size * sizeof(*p);
}
-unsigned long __init r3k_cache_lsize(unsigned long ca_flags)
+unsigned long __cpuinit r3k_cache_lsize(unsigned long ca_flags)
{
unsigned long flags, status, lsize, i;
volatile unsigned long *p;
@@ -90,7 +90,7 @@ unsigned long __init r3k_cache_lsize(unsigned long ca_flags)
return lsize * sizeof(*p);
}
-static void __init r3k_probe_cache(void)
+static void __cpuinit r3k_probe_cache(void)
{
dcache_size = r3k_cache_size(ST0_ISC);
if (dcache_size)
diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c
index 1edf0cbbeed..1417c649485 100644
--- a/arch/mips/mm/page.c
+++ b/arch/mips/mm/page.c
@@ -235,13 +235,12 @@ static void __cpuinit set_prefetch_parameters(void)
}
/*
* Too much unrolling will overflow the available space in
- * clear_space_array / copy_page_array. 8 words sounds generous,
- * but a R4000 with 128 byte L2 line length can exceed even that.
+ * clear_space_array / copy_page_array.
*/
- half_clear_loop_size = min(8 * clear_word_size,
+ half_clear_loop_size = min(16 * clear_word_size,
max(cache_line_size >> 1,
4 * clear_word_size));
- half_copy_loop_size = min(8 * copy_word_size,
+ half_copy_loop_size = min(16 * copy_word_size,
max(cache_line_size >> 1,
4 * copy_word_size));
}
@@ -263,21 +262,23 @@ static inline void __cpuinit build_clear_pref(u32 **buf, int off)
if (pref_bias_clear_store) {
uasm_i_pref(buf, pref_dst_mode, pref_bias_clear_store + off,
A0);
- } else if (cpu_has_cache_cdex_s) {
- uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
- } else if (cpu_has_cache_cdex_p) {
- if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- }
+ } else if (cache_line_size == (half_clear_loop_size << 1)) {
+ if (cpu_has_cache_cdex_s) {
+ uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
+ } else if (cpu_has_cache_cdex_p) {
+ if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ }
- if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
- uasm_i_lw(buf, ZERO, ZERO, AT);
+ if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
+ uasm_i_lw(buf, ZERO, ZERO, AT);
- uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
- }
+ uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
+ }
+ }
}
void __cpuinit build_clear_page(void)
@@ -403,20 +404,22 @@ static inline void build_copy_store_pref(u32 **buf, int off)
if (pref_bias_copy_store) {
uasm_i_pref(buf, pref_dst_mode, pref_bias_copy_store + off,
A0);
- } else if (cpu_has_cache_cdex_s) {
- uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
- } else if (cpu_has_cache_cdex_p) {
- if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- uasm_i_nop(buf);
- }
+ } else if (cache_line_size == (half_copy_loop_size << 1)) {
+ if (cpu_has_cache_cdex_s) {
+ uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0);
+ } else if (cpu_has_cache_cdex_p) {
+ if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) {
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ uasm_i_nop(buf);
+ }
- if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
- uasm_i_lw(buf, ZERO, ZERO, AT);
+ if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
+ uasm_i_lw(buf, ZERO, ZERO, AT);
- uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
+ uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0);
+ }
}
}
diff --git a/arch/mips/mm/sc-rm7k.c b/arch/mips/mm/sc-rm7k.c
index fc227f3b119..e3abfb2d7e8 100644
--- a/arch/mips/mm/sc-rm7k.c
+++ b/arch/mips/mm/sc-rm7k.c
@@ -86,7 +86,7 @@ static void rm7k_sc_inv(unsigned long addr, unsigned long size)
/*
* This function is executed in uncached address space.
*/
-static __init void __rm7k_sc_enable(void)
+static __cpuinit void __rm7k_sc_enable(void)
{
int i;
@@ -107,7 +107,7 @@ static __init void __rm7k_sc_enable(void)
}
}
-static __init void rm7k_sc_enable(void)
+static __cpuinit void rm7k_sc_enable(void)
{
if (read_c0_config() & RM7K_CONF_SE)
return;
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index cf37f5ca4b7..4d96e1db55e 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -33,13 +33,14 @@ static struct legacy_serial_info {
phys_addr_t taddr;
} legacy_serial_infos[MAX_LEGACY_SERIAL_PORTS];
-static struct __initdata of_device_id parents[] = {
+static struct __initdata of_device_id legacy_serial_parents[] = {
{.type = "soc",},
{.type = "tsi-bridge",},
{.type = "opb", },
{.compatible = "ibm,opb",},
{.compatible = "simple-bus",},
{.compatible = "wrs,epld-localbus",},
+ {},
};
static unsigned int legacy_serial_count;
@@ -327,7 +328,7 @@ void __init find_legacy_serial_ports(void)
struct device_node *parent = of_get_parent(np);
if (!parent)
continue;
- if (of_match_node(parents, parent) != NULL) {
+ if (of_match_node(legacy_serial_parents, parent) != NULL) {
index = add_legacy_soc_port(np, np);
if (index >= 0 && np == stdout)
legacy_serial_console = index;
diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c
index e79ad8afda0..3f37a6e6277 100644
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -76,6 +76,8 @@ struct of_device* of_platform_device_create(struct device_node *np,
return NULL;
dev->dma_mask = 0xffffffffUL;
+ dev->dev.coherent_dma_mask = DMA_32BIT_MASK;
+
dev->dev.bus = &of_platform_bus_type;
/* We do not fill the DMA ops for platform devices by default.
diff --git a/arch/um/Makefile b/arch/um/Makefile
index dbeab15e7bb..ca40397017b 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -77,7 +77,6 @@ include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
KERNEL_DEFINES = $(strip -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask \
-Dmktime=kernel_mktime $(ARCH_KERNEL_DEFINES))
KBUILD_CFLAGS += $(KERNEL_DEFINES)
-KBUILD_CFLAGS += $(call cc-option,-fno-unit-at-a-time,)
PHONY += linux
diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 561e373bd85..302cbe50454 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -32,4 +32,11 @@ cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
# an unresolved reference.
cflags-y += -ffreestanding
+# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
+# a lot more stack due to the lack of sharing of stacklots. Also, gcc
+# 4.3.0 needs -funit-at-a-time for extern inline functions.
+KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
+ echo $(call cc-option,-fno-unit-at-a-time); \
+ else echo $(call cc-option,-funit-at-a-time); fi ;)
+
KBUILD_CFLAGS += $(cflags-y)
diff --git a/arch/um/Makefile-x86_64 b/arch/um/Makefile-x86_64
index 8ed362f9358..a9cd7e77a7a 100644
--- a/arch/um/Makefile-x86_64
+++ b/arch/um/Makefile-x86_64
@@ -21,3 +21,6 @@ HEADER_ARCH := x86
LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64
LINK-y += -m64
+
+# Do unit-at-a-time unconditionally on x86_64, following the host
+KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
diff --git a/arch/x86/kernel/.gitignore b/arch/x86/kernel/.gitignore
index 4ea38a39aed..08f4fd73146 100644
--- a/arch/x86/kernel/.gitignore
+++ b/arch/x86/kernel/.gitignore
@@ -1,2 +1,3 @@
vsyscall.lds
vsyscall_32.lds
+vmlinux.lds
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 2b2bb3f9b68..d1b867101e5 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -300,6 +300,29 @@ void __iomem *ioremap_cache(resource_size_t phys_addr, unsigned long size)
}
EXPORT_SYMBOL(ioremap_cache);
+static void __iomem *ioremap_default(resource_size_t phys_addr,
+ unsigned long size)
+{
+ unsigned long flags;
+ void *ret;
+ int err;
+
+ /*
+ * - WB for WB-able memory and no other conflicting mappings
+ * - UC_MINUS for non-WB-able memory with no other conflicting mappings
+ * - Inherit from confliting mappings otherwise
+ */
+ err = reserve_memtype(phys_addr, phys_addr + size, -1, &flags);
+ if (err < 0)
+ return NULL;
+
+ ret = (void *) __ioremap_caller(phys_addr, size, flags,
+ __builtin_return_address(0));
+
+ free_memtype(phys_addr, phys_addr + size);
+ return (void __iomem *)ret;
+}
+
/**
* iounmap - Free a IO remapping
* @addr: virtual address from ioremap_*
@@ -365,7 +388,7 @@ void *xlate_dev_mem_ptr(unsigned long phys)
if (page_is_ram(start >> PAGE_SHIFT))
return __va(phys);
- addr = (void *)ioremap(start, PAGE_SIZE);
+ addr = (void *)ioremap_default(start, PAGE_SIZE);
if (addr)
addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK));
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 940185ecaed..6e64aaf00d1 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -328,18 +328,18 @@ static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
#endif
{
.callback = set_bf_sort,
- .ident = "HP ProLiant DL360",
+ .ident = "HP ProLiant DL385 G2",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL360"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL385 G2"),
},
},
{
.callback = set_bf_sort,
- .ident = "HP ProLiant DL380",
+ .ident = "HP ProLiant DL585 G2",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL380"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"),
},
},
{}