From 5fa6b6bd7adf347f2989560e7a3b7f806be0187f Mon Sep 17 00:00:00 2001 From: "Shreyas B. Prabhu" Date: Fri, 8 Jul 2016 11:50:46 +0530 Subject: [PATCH] powerpc/powernv: Rename reusable idle functions to hardware agnostic names Functions like power7_wakeup_loss, power7_wakeup_noloss, power7_wakeup_tb_loss are used by POWER7 and POWER8 hardware. They can also be used by POWER9. Hence rename these functions hardware agnostic names. Suggested-by: Gautham R. Shenoy Signed-off-by: Shreyas B. Prabhu Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/exceptions-64s.S | 8 +++--- arch/powerpc/kernel/idle_book3s.S | 33 +++++++++++++------------ arch/powerpc/kvm/book3s_hv_rmhandlers.S | 4 +-- 3 files changed, 23 insertions(+), 22 deletions(-) diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 612a65b2b99e..5c009c5c895d 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -108,7 +108,7 @@ BEGIN_FTR_SECTION cmpwi cr3,r13,2 GET_PACA(r13) - bl power7_restore_hyp_resource + bl pnv_restore_hyp_resource li r0,PNV_THREAD_RUNNING stb r0,PACA_THREAD_IDLE_STATE(r13) /* Clear thread state */ @@ -128,8 +128,8 @@ BEGIN_FTR_SECTION /* Return SRR1 from power7_nap() */ mfspr r3,SPRN_SRR1 blt cr3,2f - b power7_wakeup_loss -2: b power7_wakeup_noloss + b pnv_wakeup_loss +2: b pnv_wakeup_noloss 9: END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206) @@ -1269,7 +1269,7 @@ machine_check_handle_early: GET_PACA(r13) ld r1,PACAR1(r13) li r3,PNV_THREAD_NAP - b power7_enter_nap_mode + b pnv_enter_arch207_idle_mode 4: #endif /* diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S index d5def062a544..34dbfc925707 100644 --- a/arch/powerpc/kernel/idle_book3s.S +++ b/arch/powerpc/kernel/idle_book3s.S @@ -1,5 +1,6 @@ /* - * This file contains the power_save function for Power7 CPUs. + * This file contains idle entry/exit functions for POWER7 and + * POWER8 CPUs. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -75,7 +76,7 @@ core_idle_lock_held: * 0 - don't check * 1 - check */ -_GLOBAL(power7_powersave_common) +_GLOBAL(pnv_powersave_common) /* Use r3 to pass state nap/sleep/winkle */ /* NAP is a state loss, we create a regs frame on the * stack, fill it up with the state we care about and @@ -135,14 +136,14 @@ _GLOBAL(power7_powersave_common) LOAD_REG_IMMEDIATE(r5, MSR_IDLE) li r6, MSR_RI andc r6, r9, r6 - LOAD_REG_ADDR(r7, power7_enter_nap_mode) + LOAD_REG_ADDR(r7, pnv_enter_arch207_idle_mode) mtmsrd r6, 1 /* clear RI before setting SRR0/1 */ mtspr SPRN_SRR0, r7 mtspr SPRN_SRR1, r5 rfid - .globl power7_enter_nap_mode -power7_enter_nap_mode: + .globl pnv_enter_arch207_idle_mode +pnv_enter_arch207_idle_mode: #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE /* Tell KVM we're napping */ li r4,KVM_HWTHREAD_IN_NAP @@ -242,19 +243,19 @@ _GLOBAL(power7_idle) _GLOBAL(power7_nap) mr r4,r3 li r3,PNV_THREAD_NAP - b power7_powersave_common + b pnv_powersave_common /* No return */ _GLOBAL(power7_sleep) li r3,PNV_THREAD_SLEEP li r4,1 - b power7_powersave_common + b pnv_powersave_common /* No return */ _GLOBAL(power7_winkle) li r3,PNV_THREAD_WINKLE li r4,1 - b power7_powersave_common + b pnv_powersave_common /* No return */ #define CHECK_HMI_INTERRUPT \ @@ -284,7 +285,7 @@ ALT_FTR_SECTION_END_NESTED_IFSET(CPU_FTR_ARCH_207S, 66); \ * r13 - Contents of HSPRG0 * cr3 - set to gt if waking up with partial/complete hypervisor state loss */ -_GLOBAL(power7_restore_hyp_resource) +_GLOBAL(pnv_restore_hyp_resource) /* * Check if last bit of HSPGR0 is set. This indicates whether we are * waking up from winkle. @@ -296,7 +297,7 @@ _GLOBAL(power7_restore_hyp_resource) lbz r0,PACA_THREAD_IDLE_STATE(r13) cmpwi cr2,r0,PNV_THREAD_NAP - bgt cr2,power7_wakeup_tb_loss /* Either sleep or Winkle */ + bgt cr2,pnv_wakeup_tb_loss /* Either sleep or Winkle */ /* * We fall through here if PACA_THREAD_IDLE_STATE shows we are waking @@ -306,10 +307,10 @@ _GLOBAL(power7_restore_hyp_resource) bgt cr3,. blr /* Return back to System Reset vector from where - power7_restore_hyp_resource was invoked */ + pnv_restore_hyp_resource was invoked */ -_GLOBAL(power7_wakeup_tb_loss) +_GLOBAL(pnv_wakeup_tb_loss) ld r2,PACATOC(r13); ld r1,PACAR1(r13) /* @@ -476,7 +477,7 @@ hypervisor_state_restored: mtspr SPRN_SRR1,r16 mtlr r17 blr /* Return back to System Reset vector from where - power7_restore_hyp_resource was invoked */ + pnv_restore_hyp_resource was invoked */ fastsleep_workaround_at_exit: li r3,1 @@ -489,7 +490,7 @@ fastsleep_workaround_at_exit: * R3 here contains the value that will be returned to the caller * of power7_nap. */ -_GLOBAL(power7_wakeup_loss) +_GLOBAL(pnv_wakeup_loss) ld r1,PACAR1(r13) BEGIN_FTR_SECTION CHECK_HMI_INTERRUPT @@ -509,10 +510,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE) * R3 here contains the value that will be returned to the caller * of power7_nap. */ -_GLOBAL(power7_wakeup_noloss) +_GLOBAL(pnv_wakeup_noloss) lbz r0,PACA_NAPSTATELOST(r13) cmpwi r0,0 - bne power7_wakeup_loss + bne pnv_wakeup_loss BEGIN_FTR_SECTION CHECK_HMI_INTERRUPT END_FTR_SECTION_IFSET(CPU_FTR_HVMODE) diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index e571ad277398..86f0cae37a85 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -392,7 +392,7 @@ kvm_no_guest: cmpwi r3, 0 bne 54f /* - * We jump to power7_wakeup_loss, which will return to the caller + * We jump to pnv_wakeup_loss, which will return to the caller * of power7_nap in the powernv cpu offline loop. The value we * put in r3 becomes the return value for power7_nap. */ @@ -401,7 +401,7 @@ kvm_no_guest: rlwimi r4, r3, 0, LPCR_PECE0 | LPCR_PECE1 mtspr SPRN_LPCR, r4 li r3, 0 - b power7_wakeup_loss + b pnv_wakeup_loss 53: HMT_LOW ld r5, HSTATE_KVM_VCORE(r13) -- 2.20.1