Commit message (Collapse) | Author | Age | Files | Lines | |
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* | x86: UV: Address interrupt/IO port operation conflict | Dimitri Sivanich | 2010-11-18 | 2 | -2/+4 |
| | | | | | | | | | | | | | | | | | | | | | | | This patch for SGI UV systems addresses a problem whereby interrupt transactions being looped back from a local IOH, through the hub to a local CPU can (erroneously) conflict with IO port operations and other transactions. To workaound this we set a high bit in the APIC IDs used for interrupts. This bit appears to be ignored by the sockets, but it avoids the conflict in the hub. Signed-off-by: Dimitri Sivanich <sivanich@sgi.com> LKML-Reference: <20101116222352.GA8155@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> ___ arch/x86/include/asm/uv/uv_hub.h | 4 ++++ arch/x86/include/asm/uv/uv_mmrs.h | 19 ++++++++++++++++++- arch/x86/kernel/apic/x2apic_uv_x.c | 25 +++++++++++++++++++++++-- arch/x86/platform/uv/tlb_uv.c | 2 +- arch/x86/platform/uv/uv_time.c | 4 +++- 5 files changed, 49 insertions(+), 5 deletions(-) | ||||
* | x86: Remove unnecessary casts of void ptr returning alloc function return values | Jesper Juhl | 2010-11-10 | 1 | -7/+6 |
| | | | | | | | | | | | | | | | The [vk][cmz]alloc(_node) family of functions return void pointers which it's completely unnecessary/pointless to cast to other pointer types since that happens implicitly. This patch removes such casts from arch/x86. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Cc: trivial@kernel.org Cc: amd64-microcode@amd64.org Cc: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <alpine.LNX.2.00.1011082310220.23697@swampdragon.chaosbits.net> Signed-off-by: Ingo Molnar <mingo@elte.hu> | ||||
* | x86: Move uv to platform | Thomas Gleixner | 2010-10-27 | 6 | -0/+2661 |
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mike Travis <travis@sgi.com> |