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Message-Id: <3940194b67ab7069d5e878a6a8b28242ab8ddcad.1574803684.git.msuchanek@suse.de>
Date:   Wed, 27 Nov 2019 11:38:43 +0100
From:   Michal Suchanek <msuchanek@...e.de>
To:     linuxppc-dev@...ts.ozlabs.org
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Oleg Nesterov <oleg@...hat.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <christian@...uner.io>,
        Nicholas Piggin <npiggin@...il.com>,
        Allison Randal <allison@...utok.net>,
        "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>,
        Michal Suchanek <msuchanek@...e.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Breno Leitao <leitao@...ian.org>,
        Christophe Leroy <christophe.leroy@....fr>,
        Claudio Carvalho <cclaudio@...ux.ibm.com>,
        Russell Currey <ruscur@...sell.cc>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>,
        Arnd Bergmann <arnd@...db.de>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Firoz Khan <firoz.khan@...aro.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Hari Bathini <hbathini@...ux.ibm.com>,
        Andrew Donnellan <andrew.donnellan@....ibm.com>,
        Nicolai Stange <nstange@...e.de>,
        Valentin Schneider <valentin.schneider@....com>,
        Diana Craciun <diana.craciun@....com>,
        Daniel Axtens <dja@...ens.net>,
        Michael Neuling <mikey@...ling.org>,
        Gustavo Romero <gromero@...ux.ibm.com>,
        Mathieu Malaterre <malat@...ian.org>,
        "Steven Rostedt" <rostedt@...dmis.org>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        David Howells <dhowells@...hat.com>,
        Brajeswar Ghosh <brajeswar.linux@...il.com>,
        Jagadeesh Pagadala <jagdsh.linux@...il.com>,
        David Hildenbrand <david@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 rebase 07/34] powerpc/64s/exception: Remove old INT_COMMON macro

From: Nicholas Piggin <npiggin@...il.com>

Signed-off-by: Nicholas Piggin <npiggin@...il.com>
---
 arch/powerpc/kernel/exceptions-64s.S | 51 +++++++++++++---------------
 1 file changed, 24 insertions(+), 27 deletions(-)

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 17e4aaf6ed42..f318869607db 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -591,8 +591,8 @@ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948)
  * If stack=0, then the stack is already set in r1, and r1 is saved in r10.
  * PPR save and CPU accounting is not done for the !stack case (XXX why not?)
  */
-.macro INT_COMMON vec, area, stack, kuap, reconcile, dar, dsisr
-	.if \stack
+.macro GEN_COMMON name
+	.if ISTACK
 	andi.	r10,r12,MSR_PR		/* See if coming from user	*/
 	mr	r10,r1			/* Save r1			*/
 	subi	r1,r1,INT_FRAME_SIZE	/* alloc frame on kernel stack	*/
@@ -609,54 +609,54 @@ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948)
 	std	r0,GPR0(r1)		/* save r0 in stackframe	*/
 	std	r10,GPR1(r1)		/* save r1 in stackframe	*/
 
-	.if \stack
-	.if \kuap
+	.if ISTACK
+	.if IKUAP
 	kuap_save_amr_and_lock r9, r10, cr1, cr0
 	.endif
 	beq	101f			/* if from kernel mode		*/
 	ACCOUNT_CPU_USER_ENTRY(r13, r9, r10)
-	SAVE_PPR(\area, r9)
+	SAVE_PPR(IAREA, r9)
 101:
 	.else
-	.if \kuap
+	.if IKUAP
 	kuap_save_amr_and_lock r9, r10, cr1
 	.endif
 	.endif
 
 	/* Save original regs values from save area to stack frame. */
-	ld	r9,\area+EX_R9(r13)	/* move r9, r10 to stackframe	*/
-	ld	r10,\area+EX_R10(r13)
+	ld	r9,IAREA+EX_R9(r13)	/* move r9, r10 to stackframe	*/
+	ld	r10,IAREA+EX_R10(r13)
 	std	r9,GPR9(r1)
 	std	r10,GPR10(r1)
-	ld	r9,\area+EX_R11(r13)	/* move r11 - r13 to stackframe	*/
-	ld	r10,\area+EX_R12(r13)
-	ld	r11,\area+EX_R13(r13)
+	ld	r9,IAREA+EX_R11(r13)	/* move r11 - r13 to stackframe	*/
+	ld	r10,IAREA+EX_R12(r13)
+	ld	r11,IAREA+EX_R13(r13)
 	std	r9,GPR11(r1)
 	std	r10,GPR12(r1)
 	std	r11,GPR13(r1)
-	.if \dar
-	.if \dar == 2
+	.if IDAR
+	.if IDAR == 2
 	ld	r10,_NIP(r1)
 	.else
-	ld	r10,\area+EX_DAR(r13)
+	ld	r10,IAREA+EX_DAR(r13)
 	.endif
 	std	r10,_DAR(r1)
 	.endif
-	.if \dsisr
-	.if \dsisr == 2
+	.if IDSISR
+	.if IDSISR == 2
 	ld	r10,_MSR(r1)
 	lis	r11,DSISR_SRR1_MATCH_64S@h
 	and	r10,r10,r11
 	.else
-	lwz	r10,\area+EX_DSISR(r13)
+	lwz	r10,IAREA+EX_DSISR(r13)
 	.endif
 	std	r10,_DSISR(r1)
 	.endif
 BEGIN_FTR_SECTION_NESTED(66)
-	ld	r10,\area+EX_CFAR(r13)
+	ld	r10,IAREA+EX_CFAR(r13)
 	std	r10,ORIG_GPR3(r1)
 END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66)
-	GET_CTR(r10, \area)
+	GET_CTR(r10, IAREA)
 	std	r10,_CTR(r1)
 	std	r2,GPR2(r1)		/* save r2 in stackframe	*/
 	SAVE_4GPRS(3, r1)		/* save r3 - r6 in stackframe   */
@@ -668,26 +668,22 @@ END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66)
 	mfspr	r11,SPRN_XER		/* save XER in stackframe	*/
 	std	r10,SOFTE(r1)
 	std	r11,_XER(r1)
-	li	r9,(\vec)+1
+	li	r9,(IVEC)+1
 	std	r9,_TRAP(r1)		/* set trap number		*/
 	li	r10,0
 	ld	r11,exception_marker@toc(r2)
 	std	r10,RESULT(r1)		/* clear regs->result		*/
 	std	r11,STACK_FRAME_OVERHEAD-16(r1) /* mark the frame	*/
 
-	.if \stack
+	.if ISTACK
 	ACCOUNT_STOLEN_TIME
 	.endif
 
-	.if \reconcile
+	.if IRECONCILE
 	RECONCILE_IRQ_STATE(r10, r11)
 	.endif
 .endm
 
-.macro GEN_COMMON name
-	INT_COMMON IVEC, IAREA, ISTACK, IKUAP, IRECONCILE, IDAR, IDSISR
-.endm
-
 /*
  * Restore all registers including H/SRR0/1 saved in a stack frame of a
  * standard exception.
@@ -2400,7 +2396,8 @@ EXC_COMMON_BEGIN(soft_nmi_common)
 	mr	r10,r1
 	ld	r1,PACAEMERGSP(r13)
 	subi	r1,r1,INT_FRAME_SIZE
-	INT_COMMON 0x900, PACA_EXGEN, 0, 1, 1, 0, 0
+	__ISTACK(decrementer)=0
+	GEN_COMMON decrementer
 	bl	save_nvgprs
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	soft_nmi_interrupt
-- 
2.23.0

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