From 9f479dcdc1a6391f5bbe14a288031a5fd745a7f3 Mon Sep 17 00:00:00 2001 From: David Miller Date: Wed, 19 Dec 2007 16:28:57 -0800 Subject: SPARC64: Fix two kernel linear mapping setup bugs. [SPARC64]: Fix two kernel linear mapping setup bugs. [ Upstream commit: 8f361453d8e9a67c85b2cf9b93c642c2d8fe0462 ] This was caught and identified by Greg Onufer. Since we setup the 256M/4M bitmap table after taking over the trap table, it's possible for some 4M mapping to get loaded in the TLB beforhand which later will be 256M mappings. This can cause illegal TLB multiple-match conditions. Fix this by setting up the bitmap before we take over the trap table. Next, __flush_tlb_all() was not doing anything on hypervisor platforms. Fix by adding sun4v_mmu_demap_all() and calling it. Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- include/asm-sparc64/hypervisor.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/asm-sparc64/hypervisor.h b/include/asm-sparc64/hypervisor.h index 524d49835df..3ad45dff52f 100644 --- a/include/asm-sparc64/hypervisor.h +++ b/include/asm-sparc64/hypervisor.h @@ -709,6 +709,10 @@ extern unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions, */ #define HV_FAST_MMU_DEMAP_ALL 0x24 +#ifndef __ASSEMBLY__ +extern void sun4v_mmu_demap_all(void); +#endif + /* mmu_map_perm_addr() * TRAP: HV_FAST_TRAP * FUNCTION: HV_FAST_MMU_MAP_PERM_ADDR -- cgit v1.2.3-18-g5258