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-rw-r--r--arch/x86/kernel/acpi/wakeup_32.S2
-rw-r--r--arch/x86/kernel/amd_iommu.c16
-rw-r--r--arch/x86/kernel/amd_iommu_init.c20
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce.c10
-rw-r--r--arch/x86/kernel/init_task.c2
-rw-r--r--arch/x86/kernel/setup_percpu.c8
-rw-r--r--arch/x86/kernel/smpboot.c2
-rw-r--r--arch/x86/kernel/vmlinux.lds.S4
8 files changed, 42 insertions, 22 deletions
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index 8ded418..13ab720 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -1,4 +1,4 @@
- .section .text.page_aligned
+ .section .text..page_aligned
#include <linux/linkage.h>
#include <asm/segment.h>
#include <asm/page_types.h>
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index fa5a147..0d20286 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1487,6 +1487,7 @@ static int __attach_device(struct device *dev,
struct protection_domain *domain)
{
struct iommu_dev_data *dev_data, *alias_data;
+ int ret;
dev_data = get_dev_data(dev);
alias_data = get_dev_data(dev_data->alias);
@@ -1498,13 +1499,14 @@ static int __attach_device(struct device *dev,
spin_lock(&domain->lock);
/* Some sanity checks */
+ ret = -EBUSY;
if (alias_data->domain != NULL &&
alias_data->domain != domain)
- return -EBUSY;
+ goto out_unlock;
if (dev_data->domain != NULL &&
dev_data->domain != domain)
- return -EBUSY;
+ goto out_unlock;
/* Do real assignment */
if (dev_data->alias != dev) {
@@ -1520,10 +1522,14 @@ static int __attach_device(struct device *dev,
atomic_inc(&dev_data->bind);
+ ret = 0;
+
+out_unlock:
+
/* ready */
spin_unlock(&domain->lock);
- return 0;
+ return ret;
}
/*
@@ -2324,10 +2330,6 @@ int __init amd_iommu_init_dma_ops(void)
iommu_detected = 1;
swiotlb = 0;
-#ifdef CONFIG_GART_IOMMU
- gart_iommu_aperture_disabled = 1;
- gart_iommu_aperture = 0;
-#endif
/* Make the driver finally visible to the drivers */
dma_ops = &amd_iommu_dma_ops;
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 3bacb4d..3cc63e2 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -287,8 +287,12 @@ static u8 * __init iommu_map_mmio_space(u64 address)
{
u8 *ret;
- if (!request_mem_region(address, MMIO_REGION_LENGTH, "amd_iommu"))
+ if (!request_mem_region(address, MMIO_REGION_LENGTH, "amd_iommu")) {
+ pr_err("AMD-Vi: Can not reserve memory region %llx for mmio\n",
+ address);
+ pr_err("AMD-Vi: This is a BIOS bug. Please contact your hardware vendor\n");
return NULL;
+ }
ret = ioremap_nocache(address, MMIO_REGION_LENGTH);
if (ret != NULL)
@@ -1314,7 +1318,7 @@ static int __init amd_iommu_init(void)
ret = amd_iommu_init_dma_ops();
if (ret)
- goto free;
+ goto free_disable;
amd_iommu_init_api();
@@ -1332,9 +1336,10 @@ static int __init amd_iommu_init(void)
out:
return ret;
-free:
+free_disable:
disable_iommus();
+free:
amd_iommu_uninit_devices();
free_pages((unsigned long)amd_iommu_pd_alloc_bitmap,
@@ -1353,6 +1358,15 @@ free:
free_unity_maps();
+#ifdef CONFIG_GART_IOMMU
+ /*
+ * We failed to initialize the AMD IOMMU - try fallback to GART
+ * if possible.
+ */
+ gart_iommu_init();
+
+#endif
+
goto out;
}
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 707165d..18cc425 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -36,6 +36,7 @@
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/debugfs.h>
+#include <linux/edac_mce.h>
#include <asm/processor.h>
#include <asm/hw_irq.h>
@@ -169,6 +170,15 @@ void mce_log(struct mce *mce)
entry = rcu_dereference_check_mce(mcelog.next);
for (;;) {
/*
+ * If edac_mce is enabled, it will check the error type
+ * and will process it, if it is a known error.
+ * Otherwise, the error will be sent through mcelog
+ * interface
+ */
+ if (edac_mce_parse(mce))
+ return;
+
+ /*
* When the buffer fills up discard new entries.
* Assume that the earlier errors are the more
* interesting ones:
diff --git a/arch/x86/kernel/init_task.c b/arch/x86/kernel/init_task.c
index 3a54dcb..43e9ccf 100644
--- a/arch/x86/kernel/init_task.c
+++ b/arch/x86/kernel/init_task.c
@@ -34,7 +34,7 @@ EXPORT_SYMBOL(init_task);
/*
* per-CPU TSS segments. Threads are completely 'soft' on Linux,
* no more per-task TSS's. The TSS size is kept cacheline-aligned
- * so they are allowed to end up in the .data.cacheline_aligned
+ * so they are allowed to end up in the .data..cacheline_aligned
* section. Since TSS's are completely CPU-local, we want them
* on exact cacheline boundaries, to eliminate cacheline ping-pong.
*/
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index a867940..de3b63a 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -21,12 +21,6 @@
#include <asm/cpu.h>
#include <asm/stackprotector.h>
-#ifdef CONFIG_DEBUG_PER_CPU_MAPS
-# define DBG(fmt, ...) pr_dbg(fmt, ##__VA_ARGS__)
-#else
-# define DBG(fmt, ...) do { if (0) pr_dbg(fmt, ##__VA_ARGS__); } while (0)
-#endif
-
DEFINE_PER_CPU(int, cpu_number);
EXPORT_PER_CPU_SYMBOL(cpu_number);
@@ -247,7 +241,7 @@ void __init setup_per_cpu_areas(void)
#endif
#endif
/*
- * Up to this point, the boot CPU has been using .data.init
+ * Up to this point, the boot CPU has been using .init.data
* area. Reload any changed state for the boot CPU.
*/
if (cpu == boot_cpu_id)
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 37462f1..c4f33b2 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -686,7 +686,7 @@ static void __cpuinit do_fork_idle(struct work_struct *work)
static void __cpuinit announce_cpu(int cpu, int apicid)
{
static int current_node = -1;
- int node = cpu_to_node(cpu);
+ int node = early_cpu_to_node(cpu);
if (system_state == SYSTEM_BOOTING) {
if (node != current_node) {
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 2cc2497..d0bb522 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -97,7 +97,7 @@ SECTIONS
HEAD_TEXT
#ifdef CONFIG_X86_32
. = ALIGN(PAGE_SIZE);
- *(.text.page_aligned)
+ *(.text..page_aligned)
#endif
. = ALIGN(8);
_stext = .;
@@ -305,7 +305,7 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
__bss_start = .;
- *(.bss.page_aligned)
+ *(.bss..page_aligned)
*(.bss)
. = ALIGN(4);
__bss_stop = .;
generated by cgit v1.1 at 2024-12-24 14:02:58 +0000