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Message-Id: <1475202784-5653-3-git-send-email-wei.guo.simon@gmail.com>
Date: Fri, 30 Sep 2016 10:32:51 +0800
From: wei.guo.simon@...il.com
To: linuxppc-dev@...ts.ozlabs.org
Cc: Shuah Khan <shuah@...nel.org>,
Michael Ellerman <mpe@...erman.id.au>,
Cyril Bur <cyrilbur@...il.com>,
Chris Smart <chris@...troguy.com>,
Suraj Jitindar Singh <sjitindarsingh@...il.com>,
Michael Neuling <mikey@...ling.org>,
Anshuman Khandual <khandual@...ux.vnet.ibm.com>,
Simon Guo <wei.guo.simon@...il.com>,
Jack Miller <jack@...ezen.org>,
Rashmica Gupta <rashmicy@...il.com>,
linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH v15 02/15] selftests/powerpc: move shared utility files into new utility/ dir
From: Simon Guo <wei.guo.simon@...il.com>
There are some functions, especially register related, which can
be shared across multiple selftests/powerpc test directories.
This patch creates a new utility directory to store those shared
functionalities, so that the file layout becomes more neat.
Signed-off-by: Simon Guo <wei.guo.simon@...il.com>
---
tools/testing/selftests/powerpc/Makefile | 2 +-
tools/testing/selftests/powerpc/alignment/Makefile | 2 +-
tools/testing/selftests/powerpc/basic_asm.h | 70 -----------------
.../testing/selftests/powerpc/benchmarks/Makefile | 2 +-
.../selftests/powerpc/benchmarks/context_switch.c | 2 +-
.../selftests/powerpc/context_switch/Makefile | 2 +-
.../testing/selftests/powerpc/copyloops/validate.c | 2 +-
tools/testing/selftests/powerpc/instructions.h | 68 -----------------
tools/testing/selftests/powerpc/math/fpu_asm.S | 2 +-
tools/testing/selftests/powerpc/math/vmx_asm.S | 2 +-
tools/testing/selftests/powerpc/mm/Makefile | 2 +-
tools/testing/selftests/powerpc/pmu/Makefile | 4 +-
tools/testing/selftests/powerpc/pmu/ebb/Makefile | 2 +-
tools/testing/selftests/powerpc/reg.h | 89 ----------------------
.../testing/selftests/powerpc/stringloops/memcmp.c | 2 +-
tools/testing/selftests/powerpc/tm/Makefile | 2 +-
tools/testing/selftests/powerpc/tm/tm.h | 2 +-
.../testing/selftests/powerpc/utility/basic_asm.h | 73 ++++++++++++++++++
.../selftests/powerpc/utility/instructions.h | 68 +++++++++++++++++
tools/testing/selftests/powerpc/utility/reg.h | 89 ++++++++++++++++++++++
tools/testing/selftests/powerpc/utility/utils.c | 87 +++++++++++++++++++++
tools/testing/selftests/powerpc/utility/utils.h | 70 +++++++++++++++++
tools/testing/selftests/powerpc/utils.c | 87 ---------------------
tools/testing/selftests/powerpc/utils.h | 70 -----------------
24 files changed, 402 insertions(+), 399 deletions(-)
delete mode 100644 tools/testing/selftests/powerpc/basic_asm.h
delete mode 100644 tools/testing/selftests/powerpc/instructions.h
delete mode 100644 tools/testing/selftests/powerpc/reg.h
create mode 100644 tools/testing/selftests/powerpc/utility/basic_asm.h
create mode 100644 tools/testing/selftests/powerpc/utility/instructions.h
create mode 100644 tools/testing/selftests/powerpc/utility/reg.h
create mode 100644 tools/testing/selftests/powerpc/utility/utils.c
create mode 100644 tools/testing/selftests/powerpc/utility/utils.h
delete mode 100644 tools/testing/selftests/powerpc/utils.c
delete mode 100644 tools/testing/selftests/powerpc/utils.h
diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile
index 1cc6d64..b6eb817 100644
--- a/tools/testing/selftests/powerpc/Makefile
+++ b/tools/testing/selftests/powerpc/Makefile
@@ -8,7 +8,7 @@ ifeq ($(ARCH),powerpc)
GIT_VERSION = $(shell git describe --always --long --dirty || echo "unknown")
-CFLAGS := -std=gnu99 -Wall -O2 -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CURDIR) $(CFLAGS)
+CFLAGS := -std=gnu99 -Wall -O2 -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CURDIR) -I$(CURDIR)/utility $(CFLAGS)
export CFLAGS
diff --git a/tools/testing/selftests/powerpc/alignment/Makefile b/tools/testing/selftests/powerpc/alignment/Makefile
index ad6a4e4..b61e5e7 100644
--- a/tools/testing/selftests/powerpc/alignment/Makefile
+++ b/tools/testing/selftests/powerpc/alignment/Makefile
@@ -2,7 +2,7 @@ TEST_PROGS := copy_unaligned copy_first_unaligned paste_unaligned paste_last_una
all: $(TEST_PROGS)
-$(TEST_PROGS): ../harness.c ../utils.c copy_paste_unaligned_common.c
+$(TEST_PROGS): ../harness.c ../utility/utils.c copy_paste_unaligned_common.c
include ../../lib.mk
diff --git a/tools/testing/selftests/powerpc/basic_asm.h b/tools/testing/selftests/powerpc/basic_asm.h
deleted file mode 100644
index 3349a07..0000000
--- a/tools/testing/selftests/powerpc/basic_asm.h
+++ /dev/null
@@ -1,70 +0,0 @@
-#ifndef _SELFTESTS_POWERPC_BASIC_ASM_H
-#define _SELFTESTS_POWERPC_BASIC_ASM_H
-
-#include <ppc-asm.h>
-#include <asm/unistd.h>
-
-#define LOAD_REG_IMMEDIATE(reg,expr) \
- lis reg,(expr)@highest; \
- ori reg,reg,(expr)@higher; \
- rldicr reg,reg,32,31; \
- oris reg,reg,(expr)@high; \
- ori reg,reg,(expr)@l;
-
-/*
- * Note: These macros assume that variables being stored on the stack are
- * doublewords, while this is usually the case it may not always be the
- * case for each use case.
- */
-#if defined(_CALL_ELF) && _CALL_ELF == 2
-#define STACK_FRAME_MIN_SIZE 32
-#define STACK_FRAME_TOC_POS 24
-#define __STACK_FRAME_PARAM(_param) (32 + ((_param)*8))
-#define __STACK_FRAME_LOCAL(_num_params,_var_num) ((STACK_FRAME_PARAM(_num_params)) + ((_var_num)*8))
-#else
-#define STACK_FRAME_MIN_SIZE 112
-#define STACK_FRAME_TOC_POS 40
-#define __STACK_FRAME_PARAM(i) (48 + ((i)*8))
-
-/*
- * Caveat: if a function passed more than 8 doublewords, the caller will have
- * made more space... which would render the 112 incorrect.
- */
-#define __STACK_FRAME_LOCAL(_num_params,_var_num) (112 + ((_var_num)*8))
-#endif
-
-/* Parameter x saved to the stack */
-#define STACK_FRAME_PARAM(var) __STACK_FRAME_PARAM(var)
-
-/* Local variable x saved to the stack after x parameters */
-#define STACK_FRAME_LOCAL(num_params,var) __STACK_FRAME_LOCAL(num_params,var)
-#define STACK_FRAME_LR_POS 16
-#define STACK_FRAME_CR_POS 8
-
-/*
- * It is very important to note here that _extra is the extra amount of
- * stack space needed. This space can be accessed using STACK_FRAME_PARAM()
- * or STACK_FRAME_LOCAL() macros.
- *
- * r1 and r2 are not defined in ppc-asm.h (instead they are defined as sp
- * and toc). Kernel programmers tend to prefer rX even for r1 and r2, hence
- * %1 and %r2. r0 is defined in ppc-asm.h and therefore %r0 gets
- * preprocessed incorrectly, hence r0.
- */
-#define PUSH_BASIC_STACK(_extra) \
- mflr r0; \
- std r0,STACK_FRAME_LR_POS(%r1); \
- stdu %r1,-(_extra + STACK_FRAME_MIN_SIZE)(%r1); \
- mfcr r0; \
- stw r0,STACK_FRAME_CR_POS(%r1); \
- std %r2,STACK_FRAME_TOC_POS(%r1);
-
-#define POP_BASIC_STACK(_extra) \
- ld %r2,STACK_FRAME_TOC_POS(%r1); \
- lwz r0,STACK_FRAME_CR_POS(%r1); \
- mtcr r0; \
- addi %r1,%r1,(_extra + STACK_FRAME_MIN_SIZE); \
- ld r0,STACK_FRAME_LR_POS(%r1); \
- mtlr r0;
-
-#endif /* _SELFTESTS_POWERPC_BASIC_ASM_H */
diff --git a/tools/testing/selftests/powerpc/benchmarks/Makefile b/tools/testing/selftests/powerpc/benchmarks/Makefile
index a9adfb7..fc55d2b 100644
--- a/tools/testing/selftests/powerpc/benchmarks/Makefile
+++ b/tools/testing/selftests/powerpc/benchmarks/Makefile
@@ -6,7 +6,7 @@ all: $(TEST_PROGS)
$(TEST_PROGS): ../harness.c
-context_switch: ../utils.c
+context_switch: ../utility/utils.c
context_switch: CFLAGS += -maltivec -mvsx -mabi=altivec
context_switch: LDLIBS += -lpthread
diff --git a/tools/testing/selftests/powerpc/benchmarks/context_switch.c b/tools/testing/selftests/powerpc/benchmarks/context_switch.c
index a36883a..778f5fb 100644
--- a/tools/testing/selftests/powerpc/benchmarks/context_switch.c
+++ b/tools/testing/selftests/powerpc/benchmarks/context_switch.c
@@ -28,7 +28,7 @@
#ifdef __powerpc__
#include <altivec.h>
#endif
-#include "../utils.h"
+#include "utils.h"
static unsigned int timeout = 30;
diff --git a/tools/testing/selftests/powerpc/context_switch/Makefile b/tools/testing/selftests/powerpc/context_switch/Makefile
index e164d14..48b558f 100644
--- a/tools/testing/selftests/powerpc/context_switch/Makefile
+++ b/tools/testing/selftests/powerpc/context_switch/Makefile
@@ -2,7 +2,7 @@ TEST_PROGS := cp_abort
all: $(TEST_PROGS)
-$(TEST_PROGS): ../harness.c ../utils.c
+$(TEST_PROGS): ../harness.c ../utility/utils.c
include ../../lib.mk
diff --git a/tools/testing/selftests/powerpc/copyloops/validate.c b/tools/testing/selftests/powerpc/copyloops/validate.c
index 1750ff5..7fb436f 100644
--- a/tools/testing/selftests/powerpc/copyloops/validate.c
+++ b/tools/testing/selftests/powerpc/copyloops/validate.c
@@ -3,7 +3,7 @@
#include <stdlib.h>
#include <stdbool.h>
-#include "../utils.h"
+#include "utils.h"
#define MAX_LEN 8192
#define MAX_OFFSET 16
diff --git a/tools/testing/selftests/powerpc/instructions.h b/tools/testing/selftests/powerpc/instructions.h
deleted file mode 100644
index 0fb0bd3..0000000
--- a/tools/testing/selftests/powerpc/instructions.h
+++ /dev/null
@@ -1,68 +0,0 @@
-#ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H
-#define _SELFTESTS_POWERPC_INSTRUCTIONS_H
-
-#include <stdio.h>
-#include <stdlib.h>
-
-/* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */
-#define __COPY(RA, RB, L) \
- (0x7c00060c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10))
-#define COPY(RA, RB, L) \
- .long __COPY((RA), (RB), (L))
-
-static inline void copy(void *i)
-{
- asm volatile(str(COPY(0, %0, 0))";"
- :
- : "b" (i)
- : "memory"
- );
-}
-
-static inline void copy_first(void *i)
-{
- asm volatile(str(COPY(0, %0, 1))";"
- :
- : "b" (i)
- : "memory"
- );
-}
-
-/* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */
-#define __PASTE(RA, RB, L, RC) \
- (0x7c00070c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10) | (RC) << (31-31))
-#define PASTE(RA, RB, L, RC) \
- .long __PASTE((RA), (RB), (L), (RC))
-
-static inline int paste(void *i)
-{
- int cr;
-
- asm volatile(str(PASTE(0, %1, 0, 0))";"
- "mfcr %0;"
- : "=r" (cr)
- : "b" (i)
- : "memory"
- );
- return cr;
-}
-
-static inline int paste_last(void *i)
-{
- int cr;
-
- asm volatile(str(PASTE(0, %1, 1, 1))";"
- "mfcr %0;"
- : "=r" (cr)
- : "b" (i)
- : "memory"
- );
- return cr;
-}
-
-#define PPC_INST_COPY __COPY(0, 0, 0)
-#define PPC_INST_COPY_FIRST __COPY(0, 0, 1)
-#define PPC_INST_PASTE __PASTE(0, 0, 0, 0)
-#define PPC_INST_PASTE_LAST __PASTE(0, 0, 1, 1)
-
-#endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */
diff --git a/tools/testing/selftests/powerpc/math/fpu_asm.S b/tools/testing/selftests/powerpc/math/fpu_asm.S
index f3711d8..8d4eb96 100644
--- a/tools/testing/selftests/powerpc/math/fpu_asm.S
+++ b/tools/testing/selftests/powerpc/math/fpu_asm.S
@@ -7,7 +7,7 @@
* 2 of the License, or (at your option) any later version.
*/
-#include "../basic_asm.h"
+#include "basic_asm.h"
#define PUSH_FPU(pos) \
stfd f14,pos(sp); \
diff --git a/tools/testing/selftests/powerpc/math/vmx_asm.S b/tools/testing/selftests/powerpc/math/vmx_asm.S
index 1b8c248..1b6fd53 100644
--- a/tools/testing/selftests/powerpc/math/vmx_asm.S
+++ b/tools/testing/selftests/powerpc/math/vmx_asm.S
@@ -7,7 +7,7 @@
* 2 of the License, or (at your option) any later version.
*/
-#include "../basic_asm.h"
+#include "basic_asm.h"
# POS MUST BE 16 ALIGNED!
#define PUSH_VMX(pos,reg) \
diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile
index 3bdb96e..813797b 100644
--- a/tools/testing/selftests/powerpc/mm/Makefile
+++ b/tools/testing/selftests/powerpc/mm/Makefile
@@ -8,7 +8,7 @@ all: $(TEST_PROGS) $(TEST_FILES)
$(TEST_PROGS): ../harness.c
-prot_sao: ../utils.c
+prot_sao: ../utility/utils.c
include ../../lib.mk
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile
index ac41a71..5ca77af 100644
--- a/tools/testing/selftests/powerpc/pmu/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/Makefile
@@ -2,7 +2,7 @@ noarg:
$(MAKE) -C ../
TEST_PROGS := count_instructions l3_bank_test per_event_excludes
-EXTRA_SOURCES := ../harness.c event.c lib.c ../utils.c
+EXTRA_SOURCES := ../harness.c event.c lib.c ../utility/utils.c
all: $(TEST_PROGS) ebb
@@ -12,7 +12,7 @@ $(TEST_PROGS): $(EXTRA_SOURCES)
count_instructions: loop.S count_instructions.c $(EXTRA_SOURCES)
$(CC) $(CFLAGS) -m64 -o $@ $^
-per_event_excludes: ../utils.c
+per_event_excludes: ../utility/utils.c
include ../../lib.mk
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
index 6b0453e..db4a64f 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
@@ -18,7 +18,7 @@ TEST_PROGS := reg_access_test event_attributes_test cycles_test \
all: $(TEST_PROGS)
-$(TEST_PROGS): ../../harness.c ../../utils.c ../event.c ../lib.c \
+$(TEST_PROGS): ../../harness.c ../../utility/utils.c ../event.c ../lib.c \
ebb.c ebb_handler.S trace.c busy_loop.S
instruction_count_test: ../loop.S
diff --git a/tools/testing/selftests/powerpc/reg.h b/tools/testing/selftests/powerpc/reg.h
deleted file mode 100644
index f5d33db..0000000
--- a/tools/testing/selftests/powerpc/reg.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
- */
-
-#ifndef _SELFTESTS_POWERPC_REG_H
-#define _SELFTESTS_POWERPC_REG_H
-
-#define __stringify_1(x) #x
-#define __stringify(x) __stringify_1(x)
-
-#define mfspr(rn) ({unsigned long rval; \
- asm volatile("mfspr %0," _str(rn) \
- : "=r" (rval)); rval; })
-#define mtspr(rn, v) asm volatile("mtspr " _str(rn) ",%0" : \
- : "r" ((unsigned long)(v)) \
- : "memory")
-
-#define mb() asm volatile("sync" : : : "memory");
-
-#define SPRN_MMCR2 769
-#define SPRN_MMCRA 770
-#define SPRN_MMCR0 779
-#define MMCR0_PMAO 0x00000080
-#define MMCR0_PMAE 0x04000000
-#define MMCR0_FC 0x80000000
-#define SPRN_EBBHR 804
-#define SPRN_EBBRR 805
-#define SPRN_BESCR 806 /* Branch event status & control register */
-#define SPRN_BESCRS 800 /* Branch event status & control set (1 bits set to 1) */
-#define SPRN_BESCRSU 801 /* Branch event status & control set upper */
-#define SPRN_BESCRR 802 /* Branch event status & control REset (1 bits set to 0) */
-#define SPRN_BESCRRU 803 /* Branch event status & control REset upper */
-
-#define BESCR_PMEO 0x1 /* PMU Event-based exception Occurred */
-#define BESCR_PME (0x1ul << 32) /* PMU Event-based exception Enable */
-#define BESCR_LME (0x1ul << 34) /* Load Monitor Enable */
-#define BESCR_LMEO (0x1ul << 2) /* Load Monitor Exception Occurred */
-
-#define SPRN_LMRR 813 /* Load Monitor Region Register */
-#define SPRN_LMSER 814 /* Load Monitor Section Enable Register */
-
-#define SPRN_PMC1 771
-#define SPRN_PMC2 772
-#define SPRN_PMC3 773
-#define SPRN_PMC4 774
-#define SPRN_PMC5 775
-#define SPRN_PMC6 776
-
-#define SPRN_SIAR 780
-#define SPRN_SDAR 781
-#define SPRN_SIER 768
-
-#define SPRN_TEXASR 0x82 /* Transaction Exception and Status Register */
-#define SPRN_TFIAR 0x81 /* Transaction Failure Inst Addr */
-#define SPRN_TFHAR 0x80 /* Transaction Failure Handler Addr */
-#define SPRN_TAR 0x32f /* Target Address Register */
-
-#define SPRN_DSCR_PRIV 0x11 /* Privilege State DSCR */
-#define SPRN_DSCR 0x03 /* Data Stream Control Register */
-#define SPRN_PPR 896 /* Program Priority Register */
-
-/* TEXASR register bits */
-#define TEXASR_FC 0xFE00000000000000
-#define TEXASR_FP 0x0100000000000000
-#define TEXASR_DA 0x0080000000000000
-#define TEXASR_NO 0x0040000000000000
-#define TEXASR_FO 0x0020000000000000
-#define TEXASR_SIC 0x0010000000000000
-#define TEXASR_NTC 0x0008000000000000
-#define TEXASR_TC 0x0004000000000000
-#define TEXASR_TIC 0x0002000000000000
-#define TEXASR_IC 0x0001000000000000
-#define TEXASR_IFC 0x0000800000000000
-#define TEXASR_ABT 0x0000000100000000
-#define TEXASR_SPD 0x0000000080000000
-#define TEXASR_HV 0x0000000020000000
-#define TEXASR_PR 0x0000000010000000
-#define TEXASR_FS 0x0000000008000000
-#define TEXASR_TE 0x0000000004000000
-#define TEXASR_ROT 0x0000000002000000
-
-/* Vector Instructions */
-#define VSX_XX1(xs, ra, rb) (((xs) & 0x1f) << 21 | ((ra) << 16) | \
- ((rb) << 11) | (((xs) >> 5)))
-#define STXVD2X(xs, ra, rb) .long (0x7c000798 | VSX_XX1((xs), (ra), (rb)))
-#define LXVD2X(xs, ra, rb) .long (0x7c000698 | VSX_XX1((xs), (ra), (rb)))
-
-#endif /* _SELFTESTS_POWERPC_REG_H */
diff --git a/tools/testing/selftests/powerpc/stringloops/memcmp.c b/tools/testing/selftests/powerpc/stringloops/memcmp.c
index 17417dd..30b1222 100644
--- a/tools/testing/selftests/powerpc/stringloops/memcmp.c
+++ b/tools/testing/selftests/powerpc/stringloops/memcmp.c
@@ -1,7 +1,7 @@
#include <malloc.h>
#include <stdlib.h>
#include <string.h>
-#include "../utils.h"
+#include "utils.h"
#define SIZE 256
#define ITERATIONS 10000
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
index 9d301d7..8b69f1f 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -3,7 +3,7 @@ TEST_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack \
all: $(TEST_PROGS)
-$(TEST_PROGS): ../harness.c ../utils.c
+$(TEST_PROGS): ../harness.c ../utility/utils.c
CFLAGS += -mhtm
diff --git a/tools/testing/selftests/powerpc/tm/tm.h b/tools/testing/selftests/powerpc/tm/tm.h
index 60318ba..5cafbc3 100644
--- a/tools/testing/selftests/powerpc/tm/tm.h
+++ b/tools/testing/selftests/powerpc/tm/tm.h
@@ -10,7 +10,7 @@
#include <asm/cputable.h>
#include <stdbool.h>
-#include "../utils.h"
+#include "utils.h"
static inline bool have_htm(void)
{
diff --git a/tools/testing/selftests/powerpc/utility/basic_asm.h b/tools/testing/selftests/powerpc/utility/basic_asm.h
new file mode 100644
index 0000000..12eaddf
--- /dev/null
+++ b/tools/testing/selftests/powerpc/utility/basic_asm.h
@@ -0,0 +1,73 @@
+#ifndef _SELFTESTS_POWERPC_BASIC_ASM_H
+#define _SELFTESTS_POWERPC_BASIC_ASM_H
+
+#include <ppc-asm.h>
+#include <asm/unistd.h>
+
+#define LOAD_REG_IMMEDIATE(reg, expr) \
+ lis reg, (expr)@highest; \
+ ori reg, reg, (expr)@higher; \
+ rldicr reg, reg, 32, 31; \
+ oris reg, reg, (expr)@high; \
+ ori reg, reg, (expr)@l;
+
+/*
+ * Note: These macros assume that variables being stored on the stack are
+ * doublewords, while this is usually the case it may not always be the
+ * case for each use case.
+ */
+#if defined(_CALL_ELF) && _CALL_ELF == 2
+#define STACK_FRAME_MIN_SIZE 32
+#define STACK_FRAME_TOC_POS 24
+#define __STACK_FRAME_PARAM(_param) (32 + ((_param)*8))
+#define __STACK_FRAME_LOCAL(_num_params, _var_num) \
+ ((STACK_FRAME_PARAM(_num_params)) + ((_var_num)*8))
+#else
+#define STACK_FRAME_MIN_SIZE 112
+#define STACK_FRAME_TOC_POS 40
+#define __STACK_FRAME_PARAM(i) (48 + ((i)*8))
+
+/*
+ * Caveat: if a function passed more than 8 doublewords, the caller will have
+ * made more space... which would render the 112 incorrect.
+ */
+#define __STACK_FRAME_LOCAL(_num_params, _var_num) \
+ (112 + ((_var_num)*8))
+#endif
+
+/* Parameter x saved to the stack */
+#define STACK_FRAME_PARAM(var) __STACK_FRAME_PARAM(var)
+
+/* Local variable x saved to the stack after x parameters */
+#define STACK_FRAME_LOCAL(num_params, var) \
+ __STACK_FRAME_LOCAL(num_params, var)
+#define STACK_FRAME_LR_POS 16
+#define STACK_FRAME_CR_POS 8
+
+/*
+ * It is very important to note here that _extra is the extra amount of
+ * stack space needed. This space can be accessed using STACK_FRAME_PARAM()
+ * or STACK_FRAME_LOCAL() macros.
+ *
+ * r1 and r2 are not defined in ppc-asm.h (instead they are defined as sp
+ * and toc). Kernel programmers tend to prefer rX even for r1 and r2, hence
+ * %1 and %r2. r0 is defined in ppc-asm.h and therefore %r0 gets
+ * preprocessed incorrectly, hence r0.
+ */
+#define PUSH_BASIC_STACK(_extra) \
+ mflr r0; \
+ std r0, STACK_FRAME_LR_POS(%r1); \
+ stdu %r1, -(_extra + STACK_FRAME_MIN_SIZE)(%r1); \
+ mfcr r0; \
+ stw r0, STACK_FRAME_CR_POS(%r1); \
+ std %r2, STACK_FRAME_TOC_POS(%r1);
+
+#define POP_BASIC_STACK(_extra) \
+ ld %r2, STACK_FRAME_TOC_POS(%r1); \
+ lwz r0, STACK_FRAME_CR_POS(%r1); \
+ mtcr r0; \
+ addi %r1, %r1, (_extra + STACK_FRAME_MIN_SIZE); \
+ ld r0, STACK_FRAME_LR_POS(%r1); \
+ mtlr r0;
+
+#endif /* _SELFTESTS_POWERPC_BASIC_ASM_H */
diff --git a/tools/testing/selftests/powerpc/utility/instructions.h b/tools/testing/selftests/powerpc/utility/instructions.h
new file mode 100644
index 0000000..0fb0bd3
--- /dev/null
+++ b/tools/testing/selftests/powerpc/utility/instructions.h
@@ -0,0 +1,68 @@
+#ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H
+#define _SELFTESTS_POWERPC_INSTRUCTIONS_H
+
+#include <stdio.h>
+#include <stdlib.h>
+
+/* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */
+#define __COPY(RA, RB, L) \
+ (0x7c00060c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10))
+#define COPY(RA, RB, L) \
+ .long __COPY((RA), (RB), (L))
+
+static inline void copy(void *i)
+{
+ asm volatile(str(COPY(0, %0, 0))";"
+ :
+ : "b" (i)
+ : "memory"
+ );
+}
+
+static inline void copy_first(void *i)
+{
+ asm volatile(str(COPY(0, %0, 1))";"
+ :
+ : "b" (i)
+ : "memory"
+ );
+}
+
+/* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */
+#define __PASTE(RA, RB, L, RC) \
+ (0x7c00070c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10) | (RC) << (31-31))
+#define PASTE(RA, RB, L, RC) \
+ .long __PASTE((RA), (RB), (L), (RC))
+
+static inline int paste(void *i)
+{
+ int cr;
+
+ asm volatile(str(PASTE(0, %1, 0, 0))";"
+ "mfcr %0;"
+ : "=r" (cr)
+ : "b" (i)
+ : "memory"
+ );
+ return cr;
+}
+
+static inline int paste_last(void *i)
+{
+ int cr;
+
+ asm volatile(str(PASTE(0, %1, 1, 1))";"
+ "mfcr %0;"
+ : "=r" (cr)
+ : "b" (i)
+ : "memory"
+ );
+ return cr;
+}
+
+#define PPC_INST_COPY __COPY(0, 0, 0)
+#define PPC_INST_COPY_FIRST __COPY(0, 0, 1)
+#define PPC_INST_PASTE __PASTE(0, 0, 0, 0)
+#define PPC_INST_PASTE_LAST __PASTE(0, 0, 1, 1)
+
+#endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */
diff --git a/tools/testing/selftests/powerpc/utility/reg.h b/tools/testing/selftests/powerpc/utility/reg.h
new file mode 100644
index 0000000..f5d33db
--- /dev/null
+++ b/tools/testing/selftests/powerpc/utility/reg.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2014, Michael Ellerman, IBM Corp.
+ * Licensed under GPLv2.
+ */
+
+#ifndef _SELFTESTS_POWERPC_REG_H
+#define _SELFTESTS_POWERPC_REG_H
+
+#define __stringify_1(x) #x
+#define __stringify(x) __stringify_1(x)
+
+#define mfspr(rn) ({unsigned long rval; \
+ asm volatile("mfspr %0," _str(rn) \
+ : "=r" (rval)); rval; })
+#define mtspr(rn, v) asm volatile("mtspr " _str(rn) ",%0" : \
+ : "r" ((unsigned long)(v)) \
+ : "memory")
+
+#define mb() asm volatile("sync" : : : "memory");
+
+#define SPRN_MMCR2 769
+#define SPRN_MMCRA 770
+#define SPRN_MMCR0 779
+#define MMCR0_PMAO 0x00000080
+#define MMCR0_PMAE 0x04000000
+#define MMCR0_FC 0x80000000
+#define SPRN_EBBHR 804
+#define SPRN_EBBRR 805
+#define SPRN_BESCR 806 /* Branch event status & control register */
+#define SPRN_BESCRS 800 /* Branch event status & control set (1 bits set to 1) */
+#define SPRN_BESCRSU 801 /* Branch event status & control set upper */
+#define SPRN_BESCRR 802 /* Branch event status & control REset (1 bits set to 0) */
+#define SPRN_BESCRRU 803 /* Branch event status & control REset upper */
+
+#define BESCR_PMEO 0x1 /* PMU Event-based exception Occurred */
+#define BESCR_PME (0x1ul << 32) /* PMU Event-based exception Enable */
+#define BESCR_LME (0x1ul << 34) /* Load Monitor Enable */
+#define BESCR_LMEO (0x1ul << 2) /* Load Monitor Exception Occurred */
+
+#define SPRN_LMRR 813 /* Load Monitor Region Register */
+#define SPRN_LMSER 814 /* Load Monitor Section Enable Register */
+
+#define SPRN_PMC1 771
+#define SPRN_PMC2 772
+#define SPRN_PMC3 773
+#define SPRN_PMC4 774
+#define SPRN_PMC5 775
+#define SPRN_PMC6 776
+
+#define SPRN_SIAR 780
+#define SPRN_SDAR 781
+#define SPRN_SIER 768
+
+#define SPRN_TEXASR 0x82 /* Transaction Exception and Status Register */
+#define SPRN_TFIAR 0x81 /* Transaction Failure Inst Addr */
+#define SPRN_TFHAR 0x80 /* Transaction Failure Handler Addr */
+#define SPRN_TAR 0x32f /* Target Address Register */
+
+#define SPRN_DSCR_PRIV 0x11 /* Privilege State DSCR */
+#define SPRN_DSCR 0x03 /* Data Stream Control Register */
+#define SPRN_PPR 896 /* Program Priority Register */
+
+/* TEXASR register bits */
+#define TEXASR_FC 0xFE00000000000000
+#define TEXASR_FP 0x0100000000000000
+#define TEXASR_DA 0x0080000000000000
+#define TEXASR_NO 0x0040000000000000
+#define TEXASR_FO 0x0020000000000000
+#define TEXASR_SIC 0x0010000000000000
+#define TEXASR_NTC 0x0008000000000000
+#define TEXASR_TC 0x0004000000000000
+#define TEXASR_TIC 0x0002000000000000
+#define TEXASR_IC 0x0001000000000000
+#define TEXASR_IFC 0x0000800000000000
+#define TEXASR_ABT 0x0000000100000000
+#define TEXASR_SPD 0x0000000080000000
+#define TEXASR_HV 0x0000000020000000
+#define TEXASR_PR 0x0000000010000000
+#define TEXASR_FS 0x0000000008000000
+#define TEXASR_TE 0x0000000004000000
+#define TEXASR_ROT 0x0000000002000000
+
+/* Vector Instructions */
+#define VSX_XX1(xs, ra, rb) (((xs) & 0x1f) << 21 | ((ra) << 16) | \
+ ((rb) << 11) | (((xs) >> 5)))
+#define STXVD2X(xs, ra, rb) .long (0x7c000798 | VSX_XX1((xs), (ra), (rb)))
+#define LXVD2X(xs, ra, rb) .long (0x7c000698 | VSX_XX1((xs), (ra), (rb)))
+
+#endif /* _SELFTESTS_POWERPC_REG_H */
diff --git a/tools/testing/selftests/powerpc/utility/utils.c b/tools/testing/selftests/powerpc/utility/utils.c
new file mode 100644
index 0000000..dcf7418
--- /dev/null
+++ b/tools/testing/selftests/powerpc/utility/utils.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2013-2015, Michael Ellerman, IBM Corp.
+ * Licensed under GPLv2.
+ */
+
+#define _GNU_SOURCE /* For CPU_ZERO etc. */
+
+#include <elf.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <link.h>
+#include <sched.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+static char auxv[4096];
+
+void *get_auxv_entry(int type)
+{
+ ElfW(auxv_t) *p;
+ void *result;
+ ssize_t num;
+ int fd;
+
+ fd = open("/proc/self/auxv", O_RDONLY);
+ if (fd == -1) {
+ perror("open");
+ return NULL;
+ }
+
+ result = NULL;
+
+ num = read(fd, auxv, sizeof(auxv));
+ if (num < 0) {
+ perror("read");
+ goto out;
+ }
+
+ if (num > sizeof(auxv)) {
+ printf("Overflowed auxv buffer\n");
+ goto out;
+ }
+
+ p = (ElfW(auxv_t) *)auxv;
+
+ while (p->a_type != AT_NULL) {
+ if (p->a_type == type) {
+ result = (void *)p->a_un.a_val;
+ break;
+ }
+
+ p++;
+ }
+out:
+ close(fd);
+ return result;
+}
+
+int pick_online_cpu(void)
+{
+ cpu_set_t mask;
+ int cpu;
+
+ CPU_ZERO(&mask);
+
+ if (sched_getaffinity(0, sizeof(mask), &mask)) {
+ perror("sched_getaffinity");
+ return -1;
+ }
+
+ /* We prefer a primary thread, but skip 0 */
+ for (cpu = 8; cpu < CPU_SETSIZE; cpu += 8)
+ if (CPU_ISSET(cpu, &mask))
+ return cpu;
+
+ /* Search for anything, but in reverse */
+ for (cpu = CPU_SETSIZE - 1; cpu >= 0; cpu--)
+ if (CPU_ISSET(cpu, &mask))
+ return cpu;
+
+ printf("No cpus in affinity mask?!\n");
+ return -1;
+}
diff --git a/tools/testing/selftests/powerpc/utility/utils.h b/tools/testing/selftests/powerpc/utility/utils.h
new file mode 100644
index 0000000..fbd33e5
--- /dev/null
+++ b/tools/testing/selftests/powerpc/utility/utils.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2013, Michael Ellerman, IBM Corp.
+ * Licensed under GPLv2.
+ */
+
+#ifndef _SELFTESTS_POWERPC_UTILS_H
+#define _SELFTESTS_POWERPC_UTILS_H
+
+#define __cacheline_aligned __attribute__((aligned(128)))
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <linux/auxvec.h>
+#include "reg.h"
+
+/* Avoid headaches with PRI?64 - just use %ll? always */
+typedef unsigned long long u64;
+typedef signed long long s64;
+
+/* Just for familiarity */
+typedef uint32_t u32;
+typedef uint16_t u16;
+typedef uint8_t u8;
+
+
+int test_harness(int (test_function)(void), char *name);
+extern void *get_auxv_entry(int type);
+int pick_online_cpu(void);
+
+static inline bool have_hwcap(unsigned long ftr)
+{
+ return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr;
+}
+
+static inline bool have_hwcap2(unsigned long ftr2)
+{
+ return ((unsigned long)get_auxv_entry(AT_HWCAP2) & ftr2) == ftr2;
+}
+
+/* Yes, this is evil */
+#define FAIL_IF(x) \
+do { \
+ if ((x)) { \
+ fprintf(stderr, \
+ "[FAIL] Test FAILED on line %d\n", __LINE__); \
+ return 1; \
+ } \
+} while (0)
+
+/* The test harness uses this, yes it's gross */
+#define MAGIC_SKIP_RETURN_VALUE 99
+
+#define SKIP_IF(x) \
+do { \
+ if ((x)) { \
+ fprintf(stderr, \
+ "[SKIP] Test skipped on line %d\n", __LINE__); \
+ return MAGIC_SKIP_RETURN_VALUE; \
+ } \
+} while (0)
+
+#define _str(s) #s
+#define str(s) _str(s)
+
+/* POWER9 feature */
+#ifndef PPC_FEATURE2_ARCH_3_00
+#define PPC_FEATURE2_ARCH_3_00 0x00800000
+#endif
+
+#endif /* _SELFTESTS_POWERPC_UTILS_H */
diff --git a/tools/testing/selftests/powerpc/utils.c b/tools/testing/selftests/powerpc/utils.c
deleted file mode 100644
index dcf7418..0000000
--- a/tools/testing/selftests/powerpc/utils.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright 2013-2015, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
- */
-
-#define _GNU_SOURCE /* For CPU_ZERO etc. */
-
-#include <elf.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <link.h>
-#include <sched.h>
-#include <stdio.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "utils.h"
-
-static char auxv[4096];
-
-void *get_auxv_entry(int type)
-{
- ElfW(auxv_t) *p;
- void *result;
- ssize_t num;
- int fd;
-
- fd = open("/proc/self/auxv", O_RDONLY);
- if (fd == -1) {
- perror("open");
- return NULL;
- }
-
- result = NULL;
-
- num = read(fd, auxv, sizeof(auxv));
- if (num < 0) {
- perror("read");
- goto out;
- }
-
- if (num > sizeof(auxv)) {
- printf("Overflowed auxv buffer\n");
- goto out;
- }
-
- p = (ElfW(auxv_t) *)auxv;
-
- while (p->a_type != AT_NULL) {
- if (p->a_type == type) {
- result = (void *)p->a_un.a_val;
- break;
- }
-
- p++;
- }
-out:
- close(fd);
- return result;
-}
-
-int pick_online_cpu(void)
-{
- cpu_set_t mask;
- int cpu;
-
- CPU_ZERO(&mask);
-
- if (sched_getaffinity(0, sizeof(mask), &mask)) {
- perror("sched_getaffinity");
- return -1;
- }
-
- /* We prefer a primary thread, but skip 0 */
- for (cpu = 8; cpu < CPU_SETSIZE; cpu += 8)
- if (CPU_ISSET(cpu, &mask))
- return cpu;
-
- /* Search for anything, but in reverse */
- for (cpu = CPU_SETSIZE - 1; cpu >= 0; cpu--)
- if (CPU_ISSET(cpu, &mask))
- return cpu;
-
- printf("No cpus in affinity mask?!\n");
- return -1;
-}
diff --git a/tools/testing/selftests/powerpc/utils.h b/tools/testing/selftests/powerpc/utils.h
deleted file mode 100644
index fbd33e5..0000000
--- a/tools/testing/selftests/powerpc/utils.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright 2013, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
- */
-
-#ifndef _SELFTESTS_POWERPC_UTILS_H
-#define _SELFTESTS_POWERPC_UTILS_H
-
-#define __cacheline_aligned __attribute__((aligned(128)))
-
-#include <stdint.h>
-#include <stdbool.h>
-#include <linux/auxvec.h>
-#include "reg.h"
-
-/* Avoid headaches with PRI?64 - just use %ll? always */
-typedef unsigned long long u64;
-typedef signed long long s64;
-
-/* Just for familiarity */
-typedef uint32_t u32;
-typedef uint16_t u16;
-typedef uint8_t u8;
-
-
-int test_harness(int (test_function)(void), char *name);
-extern void *get_auxv_entry(int type);
-int pick_online_cpu(void);
-
-static inline bool have_hwcap(unsigned long ftr)
-{
- return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr;
-}
-
-static inline bool have_hwcap2(unsigned long ftr2)
-{
- return ((unsigned long)get_auxv_entry(AT_HWCAP2) & ftr2) == ftr2;
-}
-
-/* Yes, this is evil */
-#define FAIL_IF(x) \
-do { \
- if ((x)) { \
- fprintf(stderr, \
- "[FAIL] Test FAILED on line %d\n", __LINE__); \
- return 1; \
- } \
-} while (0)
-
-/* The test harness uses this, yes it's gross */
-#define MAGIC_SKIP_RETURN_VALUE 99
-
-#define SKIP_IF(x) \
-do { \
- if ((x)) { \
- fprintf(stderr, \
- "[SKIP] Test skipped on line %d\n", __LINE__); \
- return MAGIC_SKIP_RETURN_VALUE; \
- } \
-} while (0)
-
-#define _str(s) #s
-#define str(s) _str(s)
-
-/* POWER9 feature */
-#ifndef PPC_FEATURE2_ARCH_3_00
-#define PPC_FEATURE2_ARCH_3_00 0x00800000
-#endif
-
-#endif /* _SELFTESTS_POWERPC_UTILS_H */
--
1.8.3.1
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