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-rw-r--r--arch/x86/platform/efi/efi.c10
-rw-r--r--arch/x86/platform/efi/efi_64.c12
-rw-r--r--arch/x86/platform/efi/quirks.c5
-rw-r--r--arch/x86/platform/intel/iosf_mbi.c13
-rw-r--r--arch/x86/platform/olpc/olpc-xo1-rtc.c6
-rw-r--r--arch/x86/platform/olpc/olpc-xo1-sci.c3
-rw-r--r--arch/x86/platform/olpc/olpc_dt.c9
-rw-r--r--arch/x86/platform/pvh/head.S17
-rw-r--r--arch/x86/platform/uv/uv_irq.c3
9 files changed, 25 insertions, 53 deletions
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index a7ff189421c3..463b784499a8 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -54,13 +54,11 @@
#include <asm/uv/uv.h>
static unsigned long efi_systab_phys __initdata;
-static unsigned long uga_phys = EFI_INVALID_TABLE_ADDR;
static unsigned long efi_runtime, efi_nr_tables;
unsigned long efi_fw_vendor, efi_config_table;
static const efi_config_table_type_t arch_tables[] __initconst = {
- {UGA_IO_PROTOCOL_GUID, &uga_phys, "UGA" },
#ifdef CONFIG_X86_UV
{UV_SYSTEM_TABLE_GUID, &uv_systab_phys, "UVsystab" },
#endif
@@ -72,7 +70,6 @@ static const unsigned long * const efi_tables[] = {
&efi.acpi20,
&efi.smbios,
&efi.smbios3,
- &uga_phys,
#ifdef CONFIG_X86_UV
&uv_systab_phys,
#endif
@@ -891,13 +888,6 @@ bool efi_is_table_address(unsigned long phys_addr)
return false;
}
-char *efi_systab_show_arch(char *str)
-{
- if (uga_phys != EFI_INVALID_TABLE_ADDR)
- str += sprintf(str, "UGA=0x%lx\n", uga_phys);
- return str;
-}
-
#define EFI_FIELD(var) efi_ ## var
#define EFI_ATTR_SHOW(name) \
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index ac57259a432b..e7e8f77f77f8 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -73,7 +73,7 @@ int __init efi_alloc_page_tables(void)
gfp_t gfp_mask;
gfp_mask = GFP_KERNEL | __GFP_ZERO;
- efi_pgd = (pgd_t *)__get_free_pages(gfp_mask, PGD_ALLOCATION_ORDER);
+ efi_pgd = (pgd_t *)__get_free_pages(gfp_mask, pgd_allocation_order());
if (!efi_pgd)
goto fail;
@@ -89,6 +89,7 @@ int __init efi_alloc_page_tables(void)
efi_mm.pgd = efi_pgd;
mm_init_cpumask(&efi_mm);
init_new_context(NULL, &efi_mm);
+ set_notrack_mm(&efi_mm);
return 0;
@@ -96,7 +97,7 @@ free_p4d:
if (pgtable_l5_enabled())
free_page((unsigned long)pgd_page_vaddr(*pgd));
free_pgd:
- free_pages((unsigned long)efi_pgd, PGD_ALLOCATION_ORDER);
+ free_pages((unsigned long)efi_pgd, pgd_allocation_order());
fail:
return -ENOMEM;
}
@@ -434,15 +435,12 @@ void __init efi_dump_pagetable(void)
*/
static void efi_enter_mm(void)
{
- efi_prev_mm = current->active_mm;
- current->active_mm = &efi_mm;
- switch_mm(efi_prev_mm, &efi_mm, NULL);
+ efi_prev_mm = use_temporary_mm(&efi_mm);
}
static void efi_leave_mm(void)
{
- current->active_mm = efi_prev_mm;
- switch_mm(&efi_mm, efi_prev_mm, NULL);
+ unuse_temporary_mm(efi_prev_mm);
}
void arch_efi_call_virt_setup(void)
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 846bf49f2508..553f330198f2 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -561,6 +561,11 @@ int __init efi_reuse_config(u64 tables, int nr_tables)
if (!efi_guidcmp(guid, SMBIOS_TABLE_GUID))
((efi_config_table_64_t *)p)->table = data->smbios;
+
+ /* Do not bother to play with mem attr table across kexec */
+ if (!efi_guidcmp(guid, EFI_MEMORY_ATTRIBUTES_TABLE_GUID))
+ ((efi_config_table_64_t *)p)->table = EFI_INVALID_TABLE_ADDR;
+
p += sz;
}
early_memunmap(tablep, nr_tables * sz);
diff --git a/arch/x86/platform/intel/iosf_mbi.c b/arch/x86/platform/intel/iosf_mbi.c
index c81cea208c2c..40ae94db20d8 100644
--- a/arch/x86/platform/intel/iosf_mbi.c
+++ b/arch/x86/platform/intel/iosf_mbi.c
@@ -422,19 +422,6 @@ int iosf_mbi_unregister_pmic_bus_access_notifier_unlocked(
}
EXPORT_SYMBOL(iosf_mbi_unregister_pmic_bus_access_notifier_unlocked);
-int iosf_mbi_unregister_pmic_bus_access_notifier(struct notifier_block *nb)
-{
- int ret;
-
- /* Wait for the bus to go inactive before unregistering */
- iosf_mbi_punit_acquire();
- ret = iosf_mbi_unregister_pmic_bus_access_notifier_unlocked(nb);
- iosf_mbi_punit_release();
-
- return ret;
-}
-EXPORT_SYMBOL(iosf_mbi_unregister_pmic_bus_access_notifier);
-
void iosf_mbi_assert_punit_acquired(void)
{
WARN_ON(iosf_mbi_pmic_punit_access_count == 0);
diff --git a/arch/x86/platform/olpc/olpc-xo1-rtc.c b/arch/x86/platform/olpc/olpc-xo1-rtc.c
index 57f210cda761..ee77d57bcab7 100644
--- a/arch/x86/platform/olpc/olpc-xo1-rtc.c
+++ b/arch/x86/platform/olpc/olpc-xo1-rtc.c
@@ -64,9 +64,9 @@ static int __init xo1_rtc_init(void)
of_node_put(node);
pr_info("olpc-xo1-rtc: Initializing OLPC XO-1 RTC\n");
- rdmsrl(MSR_RTC_DOMA_OFFSET, rtc_info.rtc_day_alarm);
- rdmsrl(MSR_RTC_MONA_OFFSET, rtc_info.rtc_mon_alarm);
- rdmsrl(MSR_RTC_CEN_OFFSET, rtc_info.rtc_century);
+ rdmsrq(MSR_RTC_DOMA_OFFSET, rtc_info.rtc_day_alarm);
+ rdmsrq(MSR_RTC_MONA_OFFSET, rtc_info.rtc_mon_alarm);
+ rdmsrq(MSR_RTC_CEN_OFFSET, rtc_info.rtc_century);
r = platform_device_register(&xo1_rtc_device);
if (r)
diff --git a/arch/x86/platform/olpc/olpc-xo1-sci.c b/arch/x86/platform/olpc/olpc-xo1-sci.c
index ccb23c73cbe8..30751b42d54e 100644
--- a/arch/x86/platform/olpc/olpc-xo1-sci.c
+++ b/arch/x86/platform/olpc/olpc-xo1-sci.c
@@ -14,7 +14,6 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
-#include <linux/pm_wakeup.h>
#include <linux/power_supply.h>
#include <linux/suspend.h>
#include <linux/workqueue.h>
@@ -326,7 +325,7 @@ static int setup_sci_interrupt(struct platform_device *pdev)
dev_info(&pdev->dev, "SCI unmapped. Mapping to IRQ 3\n");
sci_irq = 3;
lo |= 0x00300000;
- wrmsrl(0x51400020, lo);
+ wrmsrq(0x51400020, lo);
}
/* Select level triggered in PIC */
diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
index 74ebd6882690..e108ce7dad6a 100644
--- a/arch/x86/platform/olpc/olpc_dt.c
+++ b/arch/x86/platform/olpc/olpc_dt.c
@@ -136,11 +136,7 @@ void * __init prom_early_alloc(unsigned long size)
* fast enough on the platforms we care about while minimizing
* wasted bootmem) and hand off chunks of it to callers.
*/
- res = memblock_alloc(chunk_size, SMP_CACHE_BYTES);
- if (!res)
- panic("%s: Failed to allocate %zu bytes\n", __func__,
- chunk_size);
- BUG_ON(!res);
+ res = memblock_alloc_or_panic(chunk_size, SMP_CACHE_BYTES);
prom_early_allocated += chunk_size;
memset(res, 0, chunk_size);
free_mem = chunk_size;
@@ -219,13 +215,12 @@ static u32 __init olpc_dt_get_board_revision(void)
static int __init olpc_dt_compatible_match(phandle node, const char *compat)
{
char buf[64], *p;
- int plen, len;
+ int plen;
plen = olpc_dt_getproperty(node, "compatible", buf, sizeof(buf));
if (plen <= 0)
return 0;
- len = strlen(compat);
for (p = buf; p < buf + plen; p += strlen(p) + 1) {
if (strcmp(p, compat) == 0)
return 1;
diff --git a/arch/x86/platform/pvh/head.S b/arch/x86/platform/pvh/head.S
index 4733a5f467b8..1d78e5631bb8 100644
--- a/arch/x86/platform/pvh/head.S
+++ b/arch/x86/platform/pvh/head.S
@@ -87,8 +87,7 @@ SYM_CODE_START(pvh_start_xen)
mov %ebx, %esi
movl rva(pvh_start_info_sz)(%ebp), %ecx
shr $2,%ecx
- rep
- movsl
+ rep movsl
leal rva(early_stack_end)(%ebp), %esp
@@ -173,10 +172,14 @@ SYM_CODE_START(pvh_start_xen)
1:
UNWIND_HINT_END_OF_STACK
- /* Set base address in stack canary descriptor. */
- mov $MSR_GS_BASE,%ecx
- leal canary(%rip), %eax
- xor %edx, %edx
+ /*
+ * Set up GSBASE.
+ * Note that on SMP the boot CPU uses the init data section until
+ * the per-CPU areas are set up.
+ */
+ movl $MSR_GS_BASE,%ecx
+ xorl %eax, %eax
+ xorl %edx, %edx
wrmsr
/* Call xen_prepare_pvh() via the kernel virtual mapping */
@@ -238,8 +241,6 @@ SYM_DATA_START_LOCAL(gdt_start)
SYM_DATA_END_LABEL(gdt_start, SYM_L_LOCAL, gdt_end)
.balign 16
-SYM_DATA_LOCAL(canary, .fill 48, 1, 0)
-
SYM_DATA_START_LOCAL(early_stack)
.fill BOOT_STACK_SIZE, 1, 0
SYM_DATA_END_LABEL(early_stack, SYM_L_LOCAL, early_stack_end)
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index a379501b7a69..4f200ac96ce0 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -92,8 +92,6 @@ static int uv_domain_alloc(struct irq_domain *domain, unsigned int virq,
if (ret >= 0) {
if (info->uv.limit == UV_AFFINITY_CPU)
irq_set_status_flags(virq, IRQ_NO_BALANCING);
- else
- irq_set_status_flags(virq, IRQ_MOVE_PCNTXT);
chip_data->pnode = uv_blade_to_pnode(info->uv.blade);
chip_data->offset = info->uv.offset;
@@ -113,7 +111,6 @@ static void uv_domain_free(struct irq_domain *domain, unsigned int virq,
BUG_ON(nr_irqs != 1);
kfree(irq_data->chip_data);
- irq_clear_status_flags(virq, IRQ_MOVE_PCNTXT);
irq_clear_status_flags(virq, IRQ_NO_BALANCING);
irq_domain_free_irqs_top(domain, virq, nr_irqs);
}