From 2dc3d4cc6848572237efc5da9f79a2446474f00d Mon Sep 17 00:00:00 2001 From: Liu Yu Date: Thu, 1 Mar 2012 09:20:19 +0800 Subject: [PATCH] powerpc/e500: make load_up_spe a normal fuction So that we can call it when improving SPE switch like book3e did for fp switch. Signed-off-by: Liu Yu Signed-off-by: Olivia Yin Signed-off-by: Kumar Gala --- arch/powerpc/kernel/head_fsl_booke.S | 23 ++++++----------------- 1 file changed, 6 insertions(+), 17 deletions(-) diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 1f4434a38608..a01488fe6fbf 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -556,8 +556,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV) /* SPE Unavailable */ START_EXCEPTION(SPEUnavailable) NORMAL_EXCEPTION_PROLOG(SPE_UNAVAIL) - bne load_up_spe - addi r3,r1,STACK_FRAME_OVERHEAD + beq 1f + bl load_up_spe + b fast_exception_return +1: addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_EE_LITE(0x2010, KernelSPE) #else EXCEPTION(0x2020, SPE_UNAVAIL, SPEUnavailable, \ @@ -778,7 +780,7 @@ tlb_write_entry: /* Note that the SPE support is closely modeled after the AltiVec * support. Changes to one are likely to be applicable to the * other! */ -load_up_spe: +_GLOBAL(load_up_spe) /* * Disable SPE for the task which had SPE previously, * and save its SPE registers in its thread_struct. @@ -826,20 +828,7 @@ load_up_spe: subi r4,r5,THREAD stw r4,last_task_used_spe@l(r3) #endif /* !CONFIG_SMP */ - /* restore registers and return */ -2: REST_4GPRS(3, r11) - lwz r10,_CCR(r11) - REST_GPR(1, r11) - mtcr r10 - lwz r10,_LINK(r11) - mtlr r10 - REST_GPR(10, r11) - mtspr SPRN_SRR1,r9 - mtspr SPRN_SRR0,r12 - REST_GPR(9, r11) - REST_GPR(12, r11) - lwz r11,GPR11(r11) - rfi + blr /* * SPE unavailable trap from kernel - print a message, but let -- 2.39.2