From dce6670aaa7efece0558010b48d5ef9d421154be Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 23 Jul 2009 23:15:42 +0000 Subject: powerpc: Add PACA fields specific to 64-bit Book3E processors This adds various fields in the PACA that are for use specifically by Book3E processors, such as exception save areas, current pgd pointer, special exceptions kernel stacks etc... Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/asm-offsets.c | 14 ++++++++++++++ arch/powerpc/kernel/paca.c | 3 +++ 2 files changed, 17 insertions(+) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 0a9f30b54952..b9e010d0fc91 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -140,6 +140,20 @@ int main(void) context.high_slices_psize)); DEFINE(MMUPSIZEDEFSIZE, sizeof(struct mmu_psize_def)); #endif /* CONFIG_PPC_MM_SLICES */ + +#ifdef CONFIG_PPC_BOOK3E + DEFINE(PACAPGD, offsetof(struct paca_struct, pgd)); + DEFINE(PACA_KERNELPGD, offsetof(struct paca_struct, kernel_pgd)); + DEFINE(PACA_EXGEN, offsetof(struct paca_struct, exgen)); + DEFINE(PACA_EXTLB, offsetof(struct paca_struct, extlb)); + DEFINE(PACA_EXMC, offsetof(struct paca_struct, exmc)); + DEFINE(PACA_EXCRIT, offsetof(struct paca_struct, excrit)); + DEFINE(PACA_EXDBG, offsetof(struct paca_struct, exdbg)); + DEFINE(PACA_MC_STACK, offsetof(struct paca_struct, mc_kstack)); + DEFINE(PACA_CRIT_STACK, offsetof(struct paca_struct, crit_kstack)); + DEFINE(PACA_DBG_STACK, offsetof(struct paca_struct, dbg_kstack)); +#endif /* CONFIG_PPC_BOOK3E */ + #ifdef CONFIG_PPC_STD_MMU_64 DEFINE(PACASTABREAL, offsetof(struct paca_struct, stab_real)); DEFINE(PACASTABVIRT, offsetof(struct paca_struct, stab_addr)); diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index e9962c7f8a09..d16b1ea55d44 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -13,6 +13,7 @@ #include #include #include +#include /* This symbol is provided by the linker - let it fill in the paca * field correctly */ @@ -87,6 +88,8 @@ void __init initialise_pacas(void) #ifdef CONFIG_PPC_BOOK3S new_paca->lppaca_ptr = &lppaca[cpu]; +#else + new_paca->kernel_pgd = swapper_pg_dir; #endif new_paca->lock_token = 0x8000; new_paca->paca_index = cpu; -- cgit v1.2.1