From 6f3d8e6947ec98e358514fc0f7b2e37fe88a21bb Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Wed, 25 Jun 2008 14:07:18 +1000 Subject: powerpc: Make load_up_fpu and load_up_altivec callable Make load_up_fpu and load_up_altivec callable so they can be reused by the VSX code. Signed-off-by: Michael Neuling Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/head_32.S | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/powerpc/kernel/head_32.S') diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 785af9b56591..99ee2f0f0f2b 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -421,8 +421,10 @@ BEGIN_FTR_SECTION b ProgramCheck END_FTR_SECTION_IFSET(CPU_FTR_FPU_UNAVAILABLE) EXCEPTION_PROLOG - bne load_up_fpu /* if from user, just load it up */ - addi r3,r1,STACK_FRAME_OVERHEAD + beq 1f + bl load_up_fpu /* if from user, just load it up */ + b fast_exception_return +1: addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_EE_LITE(0x800, kernel_fp_unavailable_exception) /* Decrementer */ -- cgit v1.2.3 From 9acd57ca74b12bc8ba8da12c72b19ede2cddcb53 Mon Sep 17 00:00:00 2001 From: Rocky Craig Date: Thu, 14 Aug 2008 23:11:54 +1000 Subject: powerpc: Fix TLB invalidation on boot on 32-bit The intent of "flush_tlbs" is to invalidate all TLB entries by doing a TLB invalidate instruction for all pages in the address range 0 to 0x00400000. A loop counter is set up at the high value and decremented by page size. However, the loop is only done once as the sense of the conditional branch at the loop end does not match the setup/decrement. This fixes it to do the whole range by correcting the branch condition. Signed-off-by: Rocky Craig Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/head_32.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/kernel/head_32.S') diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 99ee2f0f0f2b..8bb657519299 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -1155,7 +1155,7 @@ flush_tlbs: lis r10, 0x40 1: addic. r10, r10, -0x1000 tlbie r10 - blt 1b + bgt 1b sync blr -- cgit v1.2.3