diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-i386/mach-default/smpboot_hooks.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-i386/mach-default/smpboot_hooks.h')
-rw-r--r-- | include/asm-i386/mach-default/smpboot_hooks.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/asm-i386/mach-default/smpboot_hooks.h b/include/asm-i386/mach-default/smpboot_hooks.h new file mode 100644 index 000000000000..7f45f6311059 --- /dev/null +++ b/include/asm-i386/mach-default/smpboot_hooks.h | |||
@@ -0,0 +1,44 @@ | |||
1 | /* two abstractions specific to kernel/smpboot.c, mainly to cater to visws | ||
2 | * which needs to alter them. */ | ||
3 | |||
4 | static inline void smpboot_clear_io_apic_irqs(void) | ||
5 | { | ||
6 | io_apic_irqs = 0; | ||
7 | } | ||
8 | |||
9 | static inline void smpboot_setup_warm_reset_vector(unsigned long start_eip) | ||
10 | { | ||
11 | CMOS_WRITE(0xa, 0xf); | ||
12 | local_flush_tlb(); | ||
13 | Dprintk("1.\n"); | ||
14 | *((volatile unsigned short *) TRAMPOLINE_HIGH) = start_eip >> 4; | ||
15 | Dprintk("2.\n"); | ||
16 | *((volatile unsigned short *) TRAMPOLINE_LOW) = start_eip & 0xf; | ||
17 | Dprintk("3.\n"); | ||
18 | } | ||
19 | |||
20 | static inline void smpboot_restore_warm_reset_vector(void) | ||
21 | { | ||
22 | /* | ||
23 | * Install writable page 0 entry to set BIOS data area. | ||
24 | */ | ||
25 | local_flush_tlb(); | ||
26 | |||
27 | /* | ||
28 | * Paranoid: Set warm reset code and vector here back | ||
29 | * to default values. | ||
30 | */ | ||
31 | CMOS_WRITE(0, 0xf); | ||
32 | |||
33 | *((volatile long *) phys_to_virt(0x467)) = 0; | ||
34 | } | ||
35 | |||
36 | static inline void smpboot_setup_io_apic(void) | ||
37 | { | ||
38 | /* | ||
39 | * Here we can be sure that there is an IO-APIC in the system. Let's | ||
40 | * go and set it up: | ||
41 | */ | ||
42 | if (!skip_ioapic_setup && nr_ioapics) | ||
43 | setup_IO_APIC(); | ||
44 | } | ||