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| author | Michael Ellerman <mpe@ellerman.id.au> | 2016-03-03 05:26:53 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-03-07 04:53:52 +0100 |
| commit | a5cab83cd3d2d75d3893276cb5f27e163484ef04 (patch) | |
| tree | 1281c0987bde07bf74e452025e99a9f75ff38b95 /arch/powerpc/kernel/paca.c | |
| parent | Linux 4.5-rc3 (diff) | |
| download | linux-a5cab83cd3d2d75d3893276cb5f27e163484ef04.tar.xz linux-a5cab83cd3d2d75d3893276cb5f27e163484ef04.zip | |
powerpc: Create a helper for getting the kernel toc value
Move the logic to work out the kernel toc pointer into a header. This is
a good cleanup, and also means we can use it elsewhere in future.
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Reviewed-by: Torsten Duwe <duwe@suse.de>
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Tested-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/kernel/paca.c')
| -rw-r--r-- | arch/powerpc/kernel/paca.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index 01ea0edf0579..93dae296b6be 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -17,10 +17,6 @@ #include <asm/pgtable.h> #include <asm/kexec.h> -/* This symbol is provided by the linker - let it fill in the paca - * field correctly */ -extern unsigned long __toc_start; - #ifdef CONFIG_PPC_BOOK3S /* @@ -149,11 +145,6 @@ EXPORT_SYMBOL(paca); void __init initialise_paca(struct paca_struct *new_paca, int cpu) { - /* The TOC register (GPR2) points 32kB into the TOC, so that 64kB - * of the TOC can be addressed using a single machine instruction. - */ - unsigned long kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL; - #ifdef CONFIG_PPC_BOOK3S new_paca->lppaca_ptr = new_lppaca(cpu); #else @@ -161,7 +152,7 @@ void __init initialise_paca(struct paca_struct *new_paca, int cpu) #endif new_paca->lock_token = 0x8000; new_paca->paca_index = cpu; - new_paca->kernel_toc = kernel_toc; + new_paca->kernel_toc = kernel_toc_addr(); new_paca->kernelbase = (unsigned long) _stext; /* Only set MSR:IR/DR when MMU is initialized */ new_paca->kernel_msr = MSR_KERNEL & ~(MSR_IR | MSR_DR); |