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| author | Ashok Raj <ashok.raj@intel.com> | 2005-11-08 21:42:33 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-11-10 16:09:18 -0800 |
| commit | b4033c1715cb5aa1dcb1a25bdaf71fea908bb3f1 (patch) | |
| tree | cf9ba9ae7999573a507df301faf34170ab08e2c3 /include/asm-i386 | |
| parent | 48b19148733b4826eeedfd8be9f19b61c8d010b1 (diff) | |
| download | linux-3.10-b4033c1715cb5aa1dcb1a25bdaf71fea908bb3f1.tar.gz linux-3.10-b4033c1715cb5aa1dcb1a25bdaf71fea908bb3f1.tar.bz2 linux-3.10-b4033c1715cb5aa1dcb1a25bdaf71fea908bb3f1.zip | |
[PATCH] PCI: Change MSI to use physical delivery mode always
MSI hardcoded delivery mode to use logical delivery mode. Recently
x86_64 moved to use physical mode addressing to support physflat mode.
With this mode enabled noticed that my eth with MSI werent working.
msi_address_init() was hardcoded to use logical mode for i386 and x86_64.
So when we switch to use physical mode, things stopped working.
Since anyway we dont use lowest priority delivery with MSI, its always
directed to just a single CPU. Its safe and simpler to use
physical mode always, even when we use logical delivery mode for IPI's
or other ioapic RTE's.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/asm-i386')
| -rw-r--r-- | include/asm-i386/msi.h | 9 | ||||
| -rw-r--r-- | include/asm-i386/smp.h | 6 |
2 files changed, 7 insertions, 8 deletions
diff --git a/include/asm-i386/msi.h b/include/asm-i386/msi.h index b85393094c8..f041d4495fa 100644 --- a/include/asm-i386/msi.h +++ b/include/asm-i386/msi.h @@ -10,13 +10,6 @@ #include <mach_apic.h> #define LAST_DEVICE_VECTOR 232 -#define MSI_DEST_MODE MSI_LOGICAL_MODE -#define MSI_TARGET_CPU_SHIFT 12 - -#ifdef CONFIG_SMP -#define MSI_TARGET_CPU logical_smp_processor_id() -#else -#define MSI_TARGET_CPU cpu_to_logical_apicid(first_cpu(cpu_online_map)) -#endif +#define MSI_TARGET_CPU_SHIFT 12 #endif /* ASM_MSI_H */ diff --git a/include/asm-i386/smp.h b/include/asm-i386/smp.h index 13250199976..61d3ab9db70 100644 --- a/include/asm-i386/smp.h +++ b/include/asm-i386/smp.h @@ -45,6 +45,8 @@ extern void unlock_ipi_call_lock(void); #define MAX_APICID 256 extern u8 x86_cpu_to_apicid[]; +#define cpu_physical_id(cpu) x86_cpu_to_apicid[cpu] + #ifdef CONFIG_HOTPLUG_CPU extern void cpu_exit_clear(void); extern void cpu_uninit(void); @@ -92,6 +94,10 @@ extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); #endif /* !__ASSEMBLY__ */ +#else /* CONFIG_SMP */ + +#define cpu_physical_id(cpu) boot_cpu_physical_apicid + #define NO_PROC_ID 0xFF /* No processor magic marker */ #endif |