diff options
author | Ingo Molnar <mingo@elte.hu> | 2010-10-25 13:38:43 -0400 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-10-25 13:38:52 -0400 |
commit | 7d7a48b76012eeee25871e1d69104dec4b6d740f (patch) | |
tree | c27e3d8bb2e80ad93c7b4a5c850e1ffbc090bcd2 /arch/x86/kernel/trampoline.c | |
parent | e4072a9a9d186fe86293effe8828faa4be75b4a4 (diff) | |
parent | 229aebb873e29726b91e076161649cf45154b0bf (diff) |
Merge branch 'linus' into x86/urgent
Merge reason: We want to queue up a dependent fix.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/trampoline.c')
-rw-r--r-- | arch/x86/kernel/trampoline.c | 26 |
1 files changed, 5 insertions, 21 deletions
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c index e2a595257390..a375616d77f7 100644 --- a/arch/x86/kernel/trampoline.c +++ b/arch/x86/kernel/trampoline.c | |||
@@ -1,8 +1,8 @@ | |||
1 | #include <linux/io.h> | 1 | #include <linux/io.h> |
2 | #include <linux/memblock.h> | ||
2 | 3 | ||
3 | #include <asm/trampoline.h> | 4 | #include <asm/trampoline.h> |
4 | #include <asm/pgtable.h> | 5 | #include <asm/pgtable.h> |
5 | #include <asm/e820.h> | ||
6 | 6 | ||
7 | #if defined(CONFIG_X86_64) && defined(CONFIG_ACPI_SLEEP) | 7 | #if defined(CONFIG_X86_64) && defined(CONFIG_ACPI_SLEEP) |
8 | #define __trampinit | 8 | #define __trampinit |
@@ -17,15 +17,15 @@ unsigned char *__trampinitdata trampoline_base; | |||
17 | 17 | ||
18 | void __init reserve_trampoline_memory(void) | 18 | void __init reserve_trampoline_memory(void) |
19 | { | 19 | { |
20 | unsigned long mem; | 20 | phys_addr_t mem; |
21 | 21 | ||
22 | /* Has to be in very low memory so we can execute real-mode AP code. */ | 22 | /* Has to be in very low memory so we can execute real-mode AP code. */ |
23 | mem = find_e820_area(0, 1<<20, TRAMPOLINE_SIZE, PAGE_SIZE); | 23 | mem = memblock_find_in_range(0, 1<<20, TRAMPOLINE_SIZE, PAGE_SIZE); |
24 | if (mem == -1L) | 24 | if (mem == MEMBLOCK_ERROR) |
25 | panic("Cannot allocate trampoline\n"); | 25 | panic("Cannot allocate trampoline\n"); |
26 | 26 | ||
27 | trampoline_base = __va(mem); | 27 | trampoline_base = __va(mem); |
28 | reserve_early(mem, mem + TRAMPOLINE_SIZE, "TRAMPOLINE"); | 28 | memblock_x86_reserve_range(mem, mem + TRAMPOLINE_SIZE, "TRAMPOLINE"); |
29 | } | 29 | } |
30 | 30 | ||
31 | /* | 31 | /* |
@@ -38,19 +38,3 @@ unsigned long __trampinit setup_trampoline(void) | |||
38 | memcpy(trampoline_base, trampoline_data, TRAMPOLINE_SIZE); | 38 | memcpy(trampoline_base, trampoline_data, TRAMPOLINE_SIZE); |
39 | return virt_to_phys(trampoline_base); | 39 | return virt_to_phys(trampoline_base); |
40 | } | 40 | } |
41 | |||
42 | void __init setup_trampoline_page_table(void) | ||
43 | { | ||
44 | #ifdef CONFIG_X86_32 | ||
45 | /* Copy kernel address range */ | ||
46 | clone_pgd_range(trampoline_pg_dir + KERNEL_PGD_BOUNDARY, | ||
47 | swapper_pg_dir + KERNEL_PGD_BOUNDARY, | ||
48 | KERNEL_PGD_PTRS); | ||
49 | |||
50 | /* Initialize low mappings */ | ||
51 | clone_pgd_range(trampoline_pg_dir, | ||
52 | swapper_pg_dir + KERNEL_PGD_BOUNDARY, | ||
53 | min_t(unsigned long, KERNEL_PGD_PTRS, | ||
54 | KERNEL_PGD_BOUNDARY)); | ||
55 | #endif | ||
56 | } | ||