From 9076d0e7e02b98f7a65df10d1956326c8d8ba61a Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 5 Aug 2011 00:53:57 -0700 Subject: sparc: Access kernel TSB using physical addressing when possible. On sun4v this is basically required since we point the hypervisor and the TSB walking hardware at these tables using physical addressing too. Signed-off-by: David S. Miller --- arch/sparc/kernel/ktlb.S | 24 ++++++++++++------------ arch/sparc/kernel/vmlinux.lds.S | 10 ++++++++++ 2 files changed, 22 insertions(+), 12 deletions(-) (limited to 'arch/sparc/kernel') diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S index 1d361477d7d6..79f310364849 100644 --- a/arch/sparc/kernel/ktlb.S +++ b/arch/sparc/kernel/ktlb.S @@ -47,16 +47,16 @@ kvmap_itlb_tsb_miss: kvmap_itlb_vmalloc_addr: KERN_PGTABLE_WALK(%g4, %g5, %g2, kvmap_itlb_longpath) - KTSB_LOCK_TAG(%g1, %g2, %g7) + TSB_LOCK_TAG(%g1, %g2, %g7) /* Load and check PTE. */ ldxa [%g5] ASI_PHYS_USE_EC, %g5 mov 1, %g7 sllx %g7, TSB_TAG_INVALID_BIT, %g7 brgez,a,pn %g5, kvmap_itlb_longpath - KTSB_STORE(%g1, %g7) + TSB_STORE(%g1, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_WRITE(%g1, %g5, %g6) /* fallthrough to TLB load */ @@ -102,9 +102,9 @@ kvmap_itlb_longpath: kvmap_itlb_obp: OBP_TRANS_LOOKUP(%g4, %g5, %g2, %g3, kvmap_itlb_longpath) - KTSB_LOCK_TAG(%g1, %g2, %g7) + TSB_LOCK_TAG(%g1, %g2, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_WRITE(%g1, %g5, %g6) ba,pt %xcc, kvmap_itlb_load nop @@ -112,17 +112,17 @@ kvmap_itlb_obp: kvmap_dtlb_obp: OBP_TRANS_LOOKUP(%g4, %g5, %g2, %g3, kvmap_dtlb_longpath) - KTSB_LOCK_TAG(%g1, %g2, %g7) + TSB_LOCK_TAG(%g1, %g2, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_WRITE(%g1, %g5, %g6) ba,pt %xcc, kvmap_dtlb_load nop .align 32 kvmap_dtlb_tsb4m_load: - KTSB_LOCK_TAG(%g1, %g2, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_LOCK_TAG(%g1, %g2, %g7) + TSB_WRITE(%g1, %g5, %g6) ba,pt %xcc, kvmap_dtlb_load nop @@ -222,16 +222,16 @@ kvmap_linear_patch: kvmap_dtlb_vmalloc_addr: KERN_PGTABLE_WALK(%g4, %g5, %g2, kvmap_dtlb_longpath) - KTSB_LOCK_TAG(%g1, %g2, %g7) + TSB_LOCK_TAG(%g1, %g2, %g7) /* Load and check PTE. */ ldxa [%g5] ASI_PHYS_USE_EC, %g5 mov 1, %g7 sllx %g7, TSB_TAG_INVALID_BIT, %g7 brgez,a,pn %g5, kvmap_dtlb_longpath - KTSB_STORE(%g1, %g7) + TSB_STORE(%g1, %g7) - KTSB_WRITE(%g1, %g5, %g6) + TSB_WRITE(%g1, %g5, %g6) /* fallthrough to TLB load */ diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index 94a954892d3f..0e1605697b49 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -107,6 +107,16 @@ SECTIONS *(.sun4v_2insn_patch) __sun4v_2insn_patch_end = .; } + .swapper_tsb_phys_patch : { + __swapper_tsb_phys_patch = .; + *(.swapper_tsb_phys_patch) + __swapper_tsb_phys_patch_end = .; + } + .swapper_4m_tsb_phys_patch : { + __swapper_4m_tsb_phys_patch = .; + *(.swapper_4m_tsb_phys_patch) + __swapper_4m_tsb_phys_patch_end = .; + } .popc_3insn_patch : { __popc_3insn_patch = .; *(.popc_3insn_patch) -- cgit v1.2.3-59-g8ed1b