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powerpc: Add function to copy mm_context_t to the paca

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This adds a function to copy the mm->context to the paca.  This is
only a basic conversion for now but will be used more extensively in
the next patch.

This also adds #ifdef CONFIG_PPC_BOOK3S around this code since it's
not used elsewhere.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Neuling
2015-10-28 15:54:06 +11:00
committed by Michael Ellerman
parent 1b855e167b
commit c395465da6
5 changed files with 18 additions and 5 deletions
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2
arch/powerpc/kernel/asm-offsets.c
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@@ -185,6 +185,7 @@ int main(void)
DEFINE(PACAKMSR, offsetof(struct paca_struct, kernel_msr));
DEFINE(PACASOFTIRQEN, offsetof(struct paca_struct, soft_enabled));
DEFINE(PACAIRQHAPPENED, offsetof(struct paca_struct, irq_happened));
#ifdef CONFIG_PPC_BOOK3S
DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id));
#ifdef CONFIG_PPC_MM_SLICES
DEFINE(PACALOWSLICESPSIZE, offsetof(struct paca_struct,
@@ -193,6 +194,7 @@ int main(void)
context.high_slices_psize));
DEFINE(MMUPSIZEDEFSIZE, sizeof(struct mmu_psize_def));
#endif /* CONFIG_PPC_MM_SLICES */
#endif
#ifdef CONFIG_PPC_BOOK3E
DEFINE(PACAPGD, offsetof(struct paca_struct, pgd));