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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-07-23 23:15:42 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-08-20 10:25:08 +1000
commitdce6670aaa7efece0558010b48d5ef9d421154be (patch)
treeac14f2b583d8914c1a0e03637949ab7a1c307ec5 /arch/powerpc/include
parent13363ab9b9d040ebeace3a1a3a5ddcb13bf0d644 (diff)
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 <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r--arch/powerpc/include/asm/paca.h23
1 files changed, 20 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index c8a3cbfe02f..b634456ea89 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -14,9 +14,11 @@
#define _ASM_POWERPC_PACA_H
#ifdef __KERNEL__
-#include <asm/types.h>
-#include <asm/lppaca.h>
-#include <asm/mmu.h>
+#include <asm/types.h>
+#include <asm/lppaca.h>
+#include <asm/mmu.h>
+#include <asm/page.h>
+#include <asm/exception-64e.h>
register struct paca_struct *local_paca asm("r13");
@@ -91,6 +93,21 @@ struct paca_struct {
u16 slb_cache[SLB_CACHE_ENTRIES];
#endif /* CONFIG_PPC_STD_MMU_64 */
+#ifdef CONFIG_PPC_BOOK3E
+ pgd_t *pgd; /* Current PGD */
+ pgd_t *kernel_pgd; /* Kernel PGD */
+ u64 exgen[8] __attribute__((aligned(0x80)));
+ u64 extlb[EX_TLB_SIZE*3] __attribute__((aligned(0x80)));
+ u64 exmc[8]; /* used for machine checks */
+ u64 excrit[8]; /* used for crit interrupts */
+ u64 exdbg[8]; /* used for debug interrupts */
+
+ /* Kernel stack pointers for use by special exceptions */
+ void *mc_kstack;
+ void *crit_kstack;
+ void *dbg_kstack;
+#endif /* CONFIG_PPC_BOOK3E */
+
mm_context_t context;
/*