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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-04 19:07:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-04 19:07:35 -0700
commitd7526f271f2111684211fc7d27814e86a36336c9 (patch)
treee84866e500702e8ff26c2591a7b53ae9f4a84bd5 /arch
parent67bff7c087f91f79dfa97a33a3aeb147eb467093 (diff)
parentb810e94c9d8e3fff6741b66cd5a6f099a7887871 (diff)
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Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip: powernow-k8: Fix frequency reporting x86: Fix parse_reservetop() build failure on certain configs x86: Fix NULL pointer access in irq_force_complete_move() for Xen guests x86: Fix 'reservetop=' functionality
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/io.h1
-rw-r--r--arch/x86/kernel/apic/io_apic.c3
-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k8.c3
-rw-r--r--arch/x86/mm/ioremap.c14
-rw-r--r--arch/x86/mm/pgtable_32.c2
5 files changed, 22 insertions, 1 deletions
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index a1dcfa3ab17..30a3e977612 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -347,6 +347,7 @@ extern void __iomem *early_ioremap(resource_size_t phys_addr,
extern void __iomem *early_memremap(resource_size_t phys_addr,
unsigned long size);
extern void early_iounmap(void __iomem *addr, unsigned long size);
+extern void fixup_early_ioremap(void);
#define IO_SPACE_LIMIT 0xffff
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 127b8718abf..eb2789c3f72 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2545,6 +2545,9 @@ void irq_force_complete_move(int irq)
struct irq_desc *desc = irq_to_desc(irq);
struct irq_cfg *cfg = desc->chip_data;
+ if (!cfg)
+ return;
+
__irq_complete_move(&desc, cfg->vector);
}
#else
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index d360b56e982..b6215b9798e 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -929,7 +929,8 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data,
powernow_table[i].index = index;
/* Frequency may be rounded for these */
- if (boot_cpu_data.x86 == 0x10 || boot_cpu_data.x86 == 0x11) {
+ if ((boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model < 10)
+ || boot_cpu_data.x86 == 0x11) {
powernow_table[i].frequency =
freq_from_fid_did(lo & 0x3f, (lo >> 6) & 7);
} else
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 5eb1ba74a3a..12e4d2d3c11 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -448,6 +448,20 @@ static inline void __init early_clear_fixmap(enum fixed_addresses idx)
static void __iomem *prev_map[FIX_BTMAPS_SLOTS] __initdata;
static unsigned long prev_size[FIX_BTMAPS_SLOTS] __initdata;
+void __init fixup_early_ioremap(void)
+{
+ int i;
+
+ for (i = 0; i < FIX_BTMAPS_SLOTS; i++) {
+ if (prev_map[i]) {
+ WARN_ON(1);
+ break;
+ }
+ }
+
+ early_ioremap_init();
+}
+
static int __init check_early_ioremap_leak(void)
{
int count = 0;
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 1a8faf09afe..792854003ed 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -18,6 +18,7 @@
#include <asm/e820.h>
#include <asm/tlb.h>
#include <asm/tlbflush.h>
+#include <asm/io.h>
unsigned int __VMALLOC_RESERVE = 128 << 20;
@@ -128,6 +129,7 @@ static int __init parse_reservetop(char *arg)
address = memparse(arg, &arg);
reserve_top_address(address);
+ fixup_early_ioremap();
return 0;
}
early_param("reservetop", parse_reservetop);