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-rw-r--r--arch/i386/Kconfig.debug1
-rw-r--r--arch/i386/kernel/cpu/mtrr/generic.c4
-rw-r--r--arch/i386/kernel/cpu/mtrr/main.c2
-rw-r--r--arch/i386/kernel/pci-dma.c27
-rw-r--r--arch/i386/mm/pageattr.c30
-rw-r--r--arch/m68k/Kconfig3
-rw-r--r--arch/x86_64/Kconfig.debug1
-rw-r--r--arch/x86_64/ia32/ia32entry.S6
-rw-r--r--arch/x86_64/ia32/sys_ia32.c19
-rw-r--r--arch/x86_64/kernel/pci-dma.c12
-rw-r--r--arch/x86_64/mm/pageattr.c7
11 files changed, 88 insertions, 24 deletions
diff --git a/arch/i386/Kconfig.debug b/arch/i386/Kconfig.debug
index b31c0802e1c..6293920cd1b 100644
--- a/arch/i386/Kconfig.debug
+++ b/arch/i386/Kconfig.debug
@@ -49,6 +49,7 @@ config DEBUG_PAGEALLOC
config DEBUG_RODATA
bool "Write protect kernel read-only data structures"
depends on DEBUG_KERNEL
+ depends on !KPROBES # temporary for 2.6.22
help
Mark the kernel read-only data as write-protected in the pagetables,
in order to catch accidental (and incorrect) writes to such const
diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c
index c4ebb5126ef..6d5937891b4 100644
--- a/arch/i386/kernel/cpu/mtrr/generic.c
+++ b/arch/i386/kernel/cpu/mtrr/generic.c
@@ -42,7 +42,7 @@ static int mtrr_show;
module_param_named(show, mtrr_show, bool, 0);
/* Get the MSR pair relating to a var range */
-static void __init
+static void
get_mtrr_var_range(unsigned int index, struct mtrr_var_range *vr)
{
rdmsr(MTRRphysBase_MSR(index), vr->base_lo, vr->base_hi);
@@ -68,7 +68,7 @@ void mtrr_save_fixed_ranges(void *info)
get_fixed_ranges(mtrr_state.fixed_ranges);
}
-static void __cpuinit print_fixed(unsigned base, unsigned step, const mtrr_type*types)
+static void print_fixed(unsigned base, unsigned step, const mtrr_type*types)
{
unsigned i;
diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c
index 7202b98aac4..55b005152a1 100644
--- a/arch/i386/kernel/cpu/mtrr/main.c
+++ b/arch/i386/kernel/cpu/mtrr/main.c
@@ -639,7 +639,7 @@ static struct sysdev_driver mtrr_sysdev_driver = {
* initialized (i.e. before smp_init()).
*
*/
-void mtrr_bp_init(void)
+__init void mtrr_bp_init(void)
{
init_ifs();
diff --git a/arch/i386/kernel/pci-dma.c b/arch/i386/kernel/pci-dma.c
index 30b754f7cbe..048f09b6255 100644
--- a/arch/i386/kernel/pci-dma.c
+++ b/arch/i386/kernel/pci-dma.c
@@ -12,6 +12,7 @@
#include <linux/string.h>
#include <linux/pci.h>
#include <linux/module.h>
+#include <linux/pci.h>
#include <asm/io.h>
struct dma_coherent_mem {
@@ -148,3 +149,29 @@ void *dma_mark_declared_memory_occupied(struct device *dev,
return mem->virt_base + (pos << PAGE_SHIFT);
}
EXPORT_SYMBOL(dma_mark_declared_memory_occupied);
+
+#ifdef CONFIG_PCI
+/* Many VIA bridges seem to corrupt data for DAC. Disable it here */
+
+int forbid_dac;
+EXPORT_SYMBOL(forbid_dac);
+
+static __devinit void via_no_dac(struct pci_dev *dev)
+{
+ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
+ printk(KERN_INFO "PCI: VIA PCI bridge detected. Disabling DAC.\n");
+ forbid_dac = 1;
+ }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
+
+static int check_iommu(char *s)
+{
+ if (!strcmp(s, "usedac")) {
+ forbid_dac = -1;
+ return 1;
+ }
+ return 0;
+}
+__setup("iommu=", check_iommu);
+#endif
diff --git a/arch/i386/mm/pageattr.c b/arch/i386/mm/pageattr.c
index 47bd477c8ec..2eb14a73be9 100644
--- a/arch/i386/mm/pageattr.c
+++ b/arch/i386/mm/pageattr.c
@@ -68,14 +68,23 @@ static struct page *split_large_page(unsigned long address, pgprot_t prot,
return base;
}
-static void flush_kernel_map(void *arg)
+static void cache_flush_page(struct page *p)
{
- unsigned long adr = (unsigned long)arg;
+ unsigned long adr = (unsigned long)page_address(p);
+ int i;
+ for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
+ asm volatile("clflush (%0)" :: "r" (adr + i));
+}
+
+static void flush_kernel_map(void *arg)
+{
+ struct list_head *lh = (struct list_head *)arg;
+ struct page *p;
- if (adr && cpu_has_clflush) {
- int i;
- for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
- asm volatile("clflush (%0)" :: "r" (adr + i));
+ /* High level code is not ready for clflush yet */
+ if (0 && cpu_has_clflush) {
+ list_for_each_entry (p, lh, lru)
+ cache_flush_page(p);
} else if (boot_cpu_data.x86_model >= 4)
wbinvd();
@@ -181,9 +190,9 @@ __change_page_attr(struct page *page, pgprot_t prot)
return 0;
}
-static inline void flush_map(void *adr)
+static inline void flush_map(struct list_head *l)
{
- on_each_cpu(flush_kernel_map, adr, 1, 1);
+ on_each_cpu(flush_kernel_map, l, 1, 1);
}
/*
@@ -225,11 +234,8 @@ void global_flush_tlb(void)
spin_lock_irq(&cpa_lock);
list_replace_init(&df_list, &l);
spin_unlock_irq(&cpa_lock);
- if (!cpu_has_clflush)
- flush_map(NULL);
+ flush_map(&l);
list_for_each_entry_safe(pg, next, &l, lru) {
- if (cpu_has_clflush)
- flush_map(page_address(pg));
__free_page(pg);
}
}
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 85cdd23b044..a86e2e9a639 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -418,9 +418,6 @@ config STRAM_PROC
help
Say Y here to report ST-RAM usage statistics in /proc/stram.
-config ATARI_KBD_CORE
- bool
-
config HEARTBEAT
bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug
index 775d211a5cf..8a867751844 100644
--- a/arch/x86_64/Kconfig.debug
+++ b/arch/x86_64/Kconfig.debug
@@ -9,6 +9,7 @@ source "lib/Kconfig.debug"
config DEBUG_RODATA
bool "Write protect kernel read-only data structures"
depends on DEBUG_KERNEL
+ depends on !KPROBES # temporary for 2.6.22
help
Mark the kernel read-only data as write-protected in the pagetables,
in order to catch accidental (and incorrect) writes to such const data.
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index 21868f9bed7..47565c3345d 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -620,7 +620,7 @@ ia32_sys_call_table:
.quad quiet_ni_syscall /* tux */
.quad quiet_ni_syscall /* security */
.quad sys_gettid
- .quad sys_readahead /* 225 */
+ .quad sys32_readahead /* 225 */
.quad sys_setxattr
.quad sys_lsetxattr
.quad sys_fsetxattr
@@ -645,7 +645,7 @@ ia32_sys_call_table:
.quad compat_sys_io_getevents
.quad compat_sys_io_submit
.quad sys_io_cancel
- .quad sys_fadvise64 /* 250 */
+ .quad sys32_fadvise64 /* 250 */
.quad quiet_ni_syscall /* free_huge_pages */
.quad sys_exit_group
.quad sys32_lookup_dcookie
@@ -709,7 +709,7 @@ ia32_sys_call_table:
.quad compat_sys_set_robust_list
.quad compat_sys_get_robust_list
.quad sys_splice
- .quad sys_sync_file_range
+ .quad sys32_sync_file_range
.quad sys_tee /* 315 */
.quad compat_sys_vmsplice
.quad compat_sys_move_pages
diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
index 200fdde18d9..99a78a3cce7 100644
--- a/arch/x86_64/ia32/sys_ia32.c
+++ b/arch/x86_64/ia32/sys_ia32.c
@@ -860,3 +860,22 @@ long sys32_lookup_dcookie(u32 addr_low, u32 addr_high,
return sys_lookup_dcookie(((u64)addr_high << 32) | addr_low, buf, len);
}
+asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi, size_t count)
+{
+ return sys_readahead(fd, ((u64)off_hi << 32) | off_lo, count);
+}
+
+asmlinkage long sys32_sync_file_range(int fd, unsigned off_low, unsigned off_hi,
+ unsigned n_low, unsigned n_hi, int flags)
+{
+ return sys_sync_file_range(fd,
+ ((u64)off_hi << 32) | off_low,
+ ((u64)n_hi << 32) | n_low, flags);
+}
+
+asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, unsigned offset_hi, size_t len,
+ int advice)
+{
+ return sys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo,
+ len, advice);
+}
diff --git a/arch/x86_64/kernel/pci-dma.c b/arch/x86_64/kernel/pci-dma.c
index 651ccfb0669..9f80aad3fe2 100644
--- a/arch/x86_64/kernel/pci-dma.c
+++ b/arch/x86_64/kernel/pci-dma.c
@@ -322,5 +322,17 @@ static int __init pci_iommu_init(void)
return 0;
}
+#ifdef CONFIG_PCI
+/* Many VIA bridges seem to corrupt data for DAC. Disable it here */
+
+static __devinit void via_no_dac(struct pci_dev *dev)
+{
+ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
+ printk(KERN_INFO "PCI: VIA PCI bridge detected. Disabling DAC.\n");
+ forbid_dac = 1;
+ }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
+#endif
/* Must execute after PCI subsystem */
fs_initcall(pci_iommu_init);
diff --git a/arch/x86_64/mm/pageattr.c b/arch/x86_64/mm/pageattr.c
index d653d0bf3df..9148f4a4cec 100644
--- a/arch/x86_64/mm/pageattr.c
+++ b/arch/x86_64/mm/pageattr.c
@@ -74,10 +74,11 @@ static void flush_kernel_map(void *arg)
struct page *pg;
/* When clflush is available always use it because it is
- much cheaper than WBINVD */
- if (!cpu_has_clflush)
+ much cheaper than WBINVD. Disable clflush for now because
+ the high level code is not ready yet */
+ if (1 || !cpu_has_clflush)
asm volatile("wbinvd" ::: "memory");
- list_for_each_entry(pg, l, lru) {
+ else list_for_each_entry(pg, l, lru) {
void *adr = page_address(pg);
if (cpu_has_clflush)
cache_flush_page(adr);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-27 19:41:11 +0000