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| author | Tejun Heo <tj@kernel.org> | 2009-03-10 16:27:48 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-03-10 16:27:48 +0900 |
| commit | 19390c4d03688b9940a1836f06b76ec622b9cd6f (patch) | |
| tree | 16ab43f29b28e6b65ea36d4bc72a98e384d2c343 /arch/powerpc/kernel | |
| parent | 3a450de1365d20afde406f0d9b2931a5e4a4fd6a (diff) | |
| download | blackbird-op-linux-19390c4d03688b9940a1836f06b76ec622b9cd6f.tar.gz blackbird-op-linux-19390c4d03688b9940a1836f06b76ec622b9cd6f.zip | |
linker script: define __per_cpu_load on all SMP capable archs
Impact: __per_cpu_load available on all SMP capable archs
Percpu now requires three symbols to be defined - __per_cpu_load,
__per_cpu_start and __per_cpu_end. There were three archs which
didn't have it. Update them as follows.
* powerpc: can use generic PERCPU() macro. Compile tested for
powerpc32, compile/boot tested for powerpc64.
* ia64: can use generic PERCPU_VADDR() macro. __phys_per_cpu_start is
identical to __per_cpu_load. Compile tested and symbol table looks
identical after the change except for the additional __per_cpu_load.
* arm: added explicit __per_cpu_load definition. Currently uses
unified .init output section so can't use the generic macro. Dunno
whether the unified .init ouput section is required by arch
peculiarity so I left it alone. Please break it up and use PERCPU()
if possible.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Pat Gefre <pfg@sgi.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/vmlinux.lds.S | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 295ccc5e86b1..67f07f453385 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -181,14 +181,7 @@ SECTIONS __initramfs_end = .; } #endif - . = ALIGN(PAGE_SIZE); - .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { - __per_cpu_start = .; - *(.data.percpu.page_aligned) - *(.data.percpu) - *(.data.percpu.shared_aligned) - __per_cpu_end = .; - } + PERCPU(PAGE_SIZE) . = ALIGN(8); .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) { |
