projects / people / pmueller / ipfire-2.x.git / blame
| Commit | Line | Data |
|---|---|---|
| 6a930a95 BS |
1 | From: Russ Anderson <rja@sgi.com> |
| 2 | Subject: Add UV bios call to change memory protections. | |
| 3 | References: bnc#442455 | |
| 4 | ||
| 5 | ||
| 6 | Add UV bios call to change memory protections. | |
| 7 | ||
| 8 | Signed-off-by: Russ Anderson <rja@sgi.com> | |
| 9 | Acked-by: Bernhard Walle <bwalle@suse.de> | |
| 10 | ||
| 11 | --- | |
| 12 | arch/x86/kernel/bios_uv.c | 8 ++++++++ | |
| 13 | include/asm-x86/uv/bios.h | 10 +++++++++- | |
| 14 | 2 files changed, 17 insertions(+), 1 deletion(-) | |
| 15 | ||
| 16 | Index: linux/arch/x86/kernel/bios_uv.c | |
| 17 | =================================================================== | |
| 18 | --- linux.orig/arch/x86/kernel/bios_uv.c 2008-11-05 11:12:16.101949483 -0600 | |
| 19 | +++ linux/arch/x86/kernel/bios_uv.c 2008-11-05 11:13:15.289411601 -0600 | |
| 20 | @@ -134,6 +134,14 @@ uv_bios_mq_watchlist_free(int blade, int | |
| 21 | } | |
| 22 | EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_free); | |
| 23 | ||
| 24 | +s64 | |
| 25 | +uv_bios_change_memprotect(u64 paddr, u64 len, enum uv_memprotect perms) | |
| 26 | +{ | |
| 27 | + return uv_bios_call_irqsave(UV_BIOS_MEMPROTECT, paddr, len, | |
| 28 | + perms, 0, 0); | |
| 29 | +} | |
| 30 | +EXPORT_SYMBOL_GPL(uv_bios_change_memprotect); | |
| 31 | + | |
| 32 | s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second) | |
| 33 | { | |
| 34 | return uv_bios_call(UV_BIOS_FREQ_BASE, clock_type, | |
| 35 | Index: linux/include/asm-x86/uv/bios.h | |
| 36 | =================================================================== | |
| 37 | --- linux.orig/include/asm-x86/uv/bios.h 2008-11-05 11:12:16.117951501 -0600 | |
| 38 | +++ linux/include/asm-x86/uv/bios.h 2008-11-05 11:13:15.301413114 -0600 | |
| 39 | @@ -34,7 +34,8 @@ enum uv_bios_cmd { | |
| 40 | UV_BIOS_GET_SN_INFO, | |
| 41 | UV_BIOS_FREQ_BASE, | |
| 42 | UV_BIOS_WATCHLIST_ALLOC, | |
| 43 | - UV_BIOS_WATCHLIST_FREE | |
| 44 | + UV_BIOS_WATCHLIST_FREE, | |
| 45 | + UV_BIOS_MEMPROTECT | |
| 46 | }; | |
| 47 | ||
| 48 | /* | |
| 49 | @@ -82,6 +83,12 @@ union uv_watchlist_u { | |
| 50 | }; | |
| 51 | }; | |
| 52 | ||
| 53 | +enum uv_memprotect { | |
| 54 | + UV_MEMPROT_RESTRICT_ACCESS, | |
| 55 | + UV_MEMPROT_ALLOW_AMO, | |
| 56 | + UV_MEMPROT_ALLOW_RW | |
| 57 | +}; | |
| 58 | + | |
| 59 | /* | |
| 60 | * bios calls have 6 parameters | |
| 61 | */ | |
| 62 | @@ -94,6 +101,7 @@ extern s64 uv_bios_freq_base(u64, u64 *) | |
| 63 | extern int uv_bios_mq_watchlist_alloc(int, void *, unsigned int, | |
| 64 | unsigned long *); | |
| 65 | extern int uv_bios_mq_watchlist_free(int, int); | |
| 66 | +extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect); | |
| 67 | ||
| 68 | extern void uv_bios_init(void); | |
| 69 |