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-rw-r--r--tools/testing/selftests/powerpc/pmu/ebb/Makefile2
-rw-r--r--tools/testing/selftests/powerpc/pmu/ebb/busy_loop.S271
-rw-r--r--tools/testing/selftests/powerpc/pmu/ebb/ebb.c251
-rw-r--r--tools/testing/selftests/powerpc/pmu/ebb/ebb.h1
4 files changed, 272 insertions, 253 deletions
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
index edbba2affc2c..251447eafe49 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
@@ -17,7 +17,7 @@ PROGS := reg_access_test event_attributes_test cycles_test \
all: $(PROGS)
-$(PROGS): ../../harness.c ../event.c ../lib.c ebb.c ebb_handler.S trace.c
+$(PROGS): ../../harness.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/pmu/ebb/busy_loop.S b/tools/testing/selftests/powerpc/pmu/ebb/busy_loop.S
new file mode 100644
index 000000000000..c7e4093f1cd3
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/ebb/busy_loop.S
@@ -0,0 +1,271 @@
+/*
+ * Copyright 2014, Michael Ellerman, IBM Corp.
+ * Licensed under GPLv2.
+ */
+
+#include <ppc-asm.h>
+
+ .text
+
+FUNC_START(core_busy_loop)
+ stdu %r1, -168(%r1)
+ std r14, 160(%r1)
+ std r15, 152(%r1)
+ std r16, 144(%r1)
+ std r17, 136(%r1)
+ std r18, 128(%r1)
+ std r19, 120(%r1)
+ std r20, 112(%r1)
+ std r21, 104(%r1)
+ std r22, 96(%r1)
+ std r23, 88(%r1)
+ std r24, 80(%r1)
+ std r25, 72(%r1)
+ std r26, 64(%r1)
+ std r27, 56(%r1)
+ std r28, 48(%r1)
+ std r29, 40(%r1)
+ std r30, 32(%r1)
+ std r31, 24(%r1)
+
+ li r3, 0x3030
+ std r3, -96(%r1)
+ li r4, 0x4040
+ std r4, -104(%r1)
+ li r5, 0x5050
+ std r5, -112(%r1)
+ li r6, 0x6060
+ std r6, -120(%r1)
+ li r7, 0x7070
+ std r7, -128(%r1)
+ li r8, 0x0808
+ std r8, -136(%r1)
+ li r9, 0x0909
+ std r9, -144(%r1)
+ li r10, 0x1010
+ std r10, -152(%r1)
+ li r11, 0x1111
+ std r11, -160(%r1)
+ li r14, 0x1414
+ std r14, -168(%r1)
+ li r15, 0x1515
+ std r15, -176(%r1)
+ li r16, 0x1616
+ std r16, -184(%r1)
+ li r17, 0x1717
+ std r17, -192(%r1)
+ li r18, 0x1818
+ std r18, -200(%r1)
+ li r19, 0x1919
+ std r19, -208(%r1)
+ li r20, 0x2020
+ std r20, -216(%r1)
+ li r21, 0x2121
+ std r21, -224(%r1)
+ li r22, 0x2222
+ std r22, -232(%r1)
+ li r23, 0x2323
+ std r23, -240(%r1)
+ li r24, 0x2424
+ std r24, -248(%r1)
+ li r25, 0x2525
+ std r25, -256(%r1)
+ li r26, 0x2626
+ std r26, -264(%r1)
+ li r27, 0x2727
+ std r27, -272(%r1)
+ li r28, 0x2828
+ std r28, -280(%r1)
+ li r29, 0x2929
+ std r29, -288(%r1)
+ li r30, 0x3030
+ li r31, 0x3131
+
+ li r3, 0
+0: addi r3, r3, 1
+ cmpwi r3, 100
+ blt 0b
+
+ /* Return 1 (fail) unless we get through all the checks */
+ li r3, 1
+
+ /* Check none of our registers have been corrupted */
+ cmpwi r4, 0x4040
+ bne 1f
+ cmpwi r5, 0x5050
+ bne 1f
+ cmpwi r6, 0x6060
+ bne 1f
+ cmpwi r7, 0x7070
+ bne 1f
+ cmpwi r8, 0x0808
+ bne 1f
+ cmpwi r9, 0x0909
+ bne 1f
+ cmpwi r10, 0x1010
+ bne 1f
+ cmpwi r11, 0x1111
+ bne 1f
+ cmpwi r14, 0x1414
+ bne 1f
+ cmpwi r15, 0x1515
+ bne 1f
+ cmpwi r16, 0x1616
+ bne 1f
+ cmpwi r17, 0x1717
+ bne 1f
+ cmpwi r18, 0x1818
+ bne 1f
+ cmpwi r19, 0x1919
+ bne 1f
+ cmpwi r20, 0x2020
+ bne 1f
+ cmpwi r21, 0x2121
+ bne 1f
+ cmpwi r22, 0x2222
+ bne 1f
+ cmpwi r23, 0x2323
+ bne 1f
+ cmpwi r24, 0x2424
+ bne 1f
+ cmpwi r25, 0x2525
+ bne 1f
+ cmpwi r26, 0x2626
+ bne 1f
+ cmpwi r27, 0x2727
+ bne 1f
+ cmpwi r28, 0x2828
+ bne 1f
+ cmpwi r29, 0x2929
+ bne 1f
+ cmpwi r30, 0x3030
+ bne 1f
+ cmpwi r31, 0x3131
+ bne 1f
+
+ /* Load junk into all our registers before we reload them from the stack. */
+ li r3, 0xde
+ li r4, 0xad
+ li r5, 0xbe
+ li r6, 0xef
+ li r7, 0xde
+ li r8, 0xad
+ li r9, 0xbe
+ li r10, 0xef
+ li r11, 0xde
+ li r14, 0xad
+ li r15, 0xbe
+ li r16, 0xef
+ li r17, 0xde
+ li r18, 0xad
+ li r19, 0xbe
+ li r20, 0xef
+ li r21, 0xde
+ li r22, 0xad
+ li r23, 0xbe
+ li r24, 0xef
+ li r25, 0xde
+ li r26, 0xad
+ li r27, 0xbe
+ li r28, 0xef
+ li r29, 0xdd
+
+ ld r3, -96(%r1)
+ cmpwi r3, 0x3030
+ bne 1f
+ ld r4, -104(%r1)
+ cmpwi r4, 0x4040
+ bne 1f
+ ld r5, -112(%r1)
+ cmpwi r5, 0x5050
+ bne 1f
+ ld r6, -120(%r1)
+ cmpwi r6, 0x6060
+ bne 1f
+ ld r7, -128(%r1)
+ cmpwi r7, 0x7070
+ bne 1f
+ ld r8, -136(%r1)
+ cmpwi r8, 0x0808
+ bne 1f
+ ld r9, -144(%r1)
+ cmpwi r9, 0x0909
+ bne 1f
+ ld r10, -152(%r1)
+ cmpwi r10, 0x1010
+ bne 1f
+ ld r11, -160(%r1)
+ cmpwi r11, 0x1111
+ bne 1f
+ ld r14, -168(%r1)
+ cmpwi r14, 0x1414
+ bne 1f
+ ld r15, -176(%r1)
+ cmpwi r15, 0x1515
+ bne 1f
+ ld r16, -184(%r1)
+ cmpwi r16, 0x1616
+ bne 1f
+ ld r17, -192(%r1)
+ cmpwi r17, 0x1717
+ bne 1f
+ ld r18, -200(%r1)
+ cmpwi r18, 0x1818
+ bne 1f
+ ld r19, -208(%r1)
+ cmpwi r19, 0x1919
+ bne 1f
+ ld r20, -216(%r1)
+ cmpwi r20, 0x2020
+ bne 1f
+ ld r21, -224(%r1)
+ cmpwi r21, 0x2121
+ bne 1f
+ ld r22, -232(%r1)
+ cmpwi r22, 0x2222
+ bne 1f
+ ld r23, -240(%r1)
+ cmpwi r23, 0x2323
+ bne 1f
+ ld r24, -248(%r1)
+ cmpwi r24, 0x2424
+ bne 1f
+ ld r25, -256(%r1)
+ cmpwi r25, 0x2525
+ bne 1f
+ ld r26, -264(%r1)
+ cmpwi r26, 0x2626
+ bne 1f
+ ld r27, -272(%r1)
+ cmpwi r27, 0x2727
+ bne 1f
+ ld r28, -280(%r1)
+ cmpwi r28, 0x2828
+ bne 1f
+ ld r29, -288(%r1)
+ cmpwi r29, 0x2929
+ bne 1f
+
+ /* Load 0 (success) to return */
+ li r3, 0
+
+1: ld r14, 160(%r1)
+ ld r15, 152(%r1)
+ ld r16, 144(%r1)
+ ld r17, 136(%r1)
+ ld r18, 128(%r1)
+ ld r19, 120(%r1)
+ ld r20, 112(%r1)
+ ld r21, 104(%r1)
+ ld r22, 96(%r1)
+ ld r23, 88(%r1)
+ ld r24, 80(%r1)
+ ld r25, 72(%r1)
+ ld r26, 64(%r1)
+ ld r27, 56(%r1)
+ ld r28, 48(%r1)
+ ld r29, 40(%r1)
+ ld r30, 32(%r1)
+ ld r31, 24(%r1)
+ addi %r1, %r1, 168
+ blr
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
index 1b46be94b64c..b7ee607c0fca 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
@@ -335,257 +335,6 @@ void event_leader_ebb_init(struct event *e)
e->attr.pinned = 1;
}
-int core_busy_loop(void)
-{
- int rc;
-
- asm volatile (
- "li 3, 0x3030\n"
- "std 3, -96(1)\n"
- "li 4, 0x4040\n"
- "std 4, -104(1)\n"
- "li 5, 0x5050\n"
- "std 5, -112(1)\n"
- "li 6, 0x6060\n"
- "std 6, -120(1)\n"
- "li 7, 0x7070\n"
- "std 7, -128(1)\n"
- "li 8, 0x0808\n"
- "std 8, -136(1)\n"
- "li 9, 0x0909\n"
- "std 9, -144(1)\n"
- "li 10, 0x1010\n"
- "std 10, -152(1)\n"
- "li 11, 0x1111\n"
- "std 11, -160(1)\n"
- "li 14, 0x1414\n"
- "std 14, -168(1)\n"
- "li 15, 0x1515\n"
- "std 15, -176(1)\n"
- "li 16, 0x1616\n"
- "std 16, -184(1)\n"
- "li 17, 0x1717\n"
- "std 17, -192(1)\n"
- "li 18, 0x1818\n"
- "std 18, -200(1)\n"
- "li 19, 0x1919\n"
- "std 19, -208(1)\n"
- "li 20, 0x2020\n"
- "std 20, -216(1)\n"
- "li 21, 0x2121\n"
- "std 21, -224(1)\n"
- "li 22, 0x2222\n"
- "std 22, -232(1)\n"
- "li 23, 0x2323\n"
- "std 23, -240(1)\n"
- "li 24, 0x2424\n"
- "std 24, -248(1)\n"
- "li 25, 0x2525\n"
- "std 25, -256(1)\n"
- "li 26, 0x2626\n"
- "std 26, -264(1)\n"
- "li 27, 0x2727\n"
- "std 27, -272(1)\n"
- "li 28, 0x2828\n"
- "std 28, -280(1)\n"
- "li 29, 0x2929\n"
- "std 29, -288(1)\n"
- "li 30, 0x3030\n"
- "li 31, 0x3131\n"
-
- "li 3, 0\n"
- "0: "
- "addi 3, 3, 1\n"
- "cmpwi 3, 100\n"
- "blt 0b\n"
-
- /* Return 1 (fail) unless we get through all the checks */
- "li 0, 1\n"
-
- /* Check none of our registers have been corrupted */
- "cmpwi 4, 0x4040\n"
- "bne 1f\n"
- "cmpwi 5, 0x5050\n"
- "bne 1f\n"
- "cmpwi 6, 0x6060\n"
- "bne 1f\n"
- "cmpwi 7, 0x7070\n"
- "bne 1f\n"
- "cmpwi 8, 0x0808\n"
- "bne 1f\n"
- "cmpwi 9, 0x0909\n"
- "bne 1f\n"
- "cmpwi 10, 0x1010\n"
- "bne 1f\n"
- "cmpwi 11, 0x1111\n"
- "bne 1f\n"
- "cmpwi 14, 0x1414\n"
- "bne 1f\n"
- "cmpwi 15, 0x1515\n"
- "bne 1f\n"
- "cmpwi 16, 0x1616\n"
- "bne 1f\n"
- "cmpwi 17, 0x1717\n"
- "bne 1f\n"
- "cmpwi 18, 0x1818\n"
- "bne 1f\n"
- "cmpwi 19, 0x1919\n"
- "bne 1f\n"
- "cmpwi 20, 0x2020\n"
- "bne 1f\n"
- "cmpwi 21, 0x2121\n"
- "bne 1f\n"
- "cmpwi 22, 0x2222\n"
- "bne 1f\n"
- "cmpwi 23, 0x2323\n"
- "bne 1f\n"
- "cmpwi 24, 0x2424\n"
- "bne 1f\n"
- "cmpwi 25, 0x2525\n"
- "bne 1f\n"
- "cmpwi 26, 0x2626\n"
- "bne 1f\n"
- "cmpwi 27, 0x2727\n"
- "bne 1f\n"
- "cmpwi 28, 0x2828\n"
- "bne 1f\n"
- "cmpwi 29, 0x2929\n"
- "bne 1f\n"
- "cmpwi 30, 0x3030\n"
- "bne 1f\n"
- "cmpwi 31, 0x3131\n"
- "bne 1f\n"
-
- /* Load junk into all our registers before we reload them from the stack. */
- "li 3, 0xde\n"
- "li 4, 0xad\n"
- "li 5, 0xbe\n"
- "li 6, 0xef\n"
- "li 7, 0xde\n"
- "li 8, 0xad\n"
- "li 9, 0xbe\n"
- "li 10, 0xef\n"
- "li 11, 0xde\n"
- "li 14, 0xad\n"
- "li 15, 0xbe\n"
- "li 16, 0xef\n"
- "li 17, 0xde\n"
- "li 18, 0xad\n"
- "li 19, 0xbe\n"
- "li 20, 0xef\n"
- "li 21, 0xde\n"
- "li 22, 0xad\n"
- "li 23, 0xbe\n"
- "li 24, 0xef\n"
- "li 25, 0xde\n"
- "li 26, 0xad\n"
- "li 27, 0xbe\n"
- "li 28, 0xef\n"
- "li 29, 0xdd\n"
-
- "ld 3, -96(1)\n"
- "cmpwi 3, 0x3030\n"
- "bne 1f\n"
- "ld 4, -104(1)\n"
- "cmpwi 4, 0x4040\n"
- "bne 1f\n"
- "ld 5, -112(1)\n"
- "cmpwi 5, 0x5050\n"
- "bne 1f\n"
- "ld 6, -120(1)\n"
- "cmpwi 6, 0x6060\n"
- "bne 1f\n"
- "ld 7, -128(1)\n"
- "cmpwi 7, 0x7070\n"
- "bne 1f\n"
- "ld 8, -136(1)\n"
- "cmpwi 8, 0x0808\n"
- "bne 1f\n"
- "ld 9, -144(1)\n"
- "cmpwi 9, 0x0909\n"
- "bne 1f\n"
- "ld 10, -152(1)\n"
- "cmpwi 10, 0x1010\n"
- "bne 1f\n"
- "ld 11, -160(1)\n"
- "cmpwi 11, 0x1111\n"
- "bne 1f\n"
- "ld 14, -168(1)\n"
- "cmpwi 14, 0x1414\n"
- "bne 1f\n"
- "ld 15, -176(1)\n"
- "cmpwi 15, 0x1515\n"
- "bne 1f\n"
- "ld 16, -184(1)\n"
- "cmpwi 16, 0x1616\n"
- "bne 1f\n"
- "ld 17, -192(1)\n"
- "cmpwi 17, 0x1717\n"
- "bne 1f\n"
- "ld 18, -200(1)\n"
- "cmpwi 18, 0x1818\n"
- "bne 1f\n"
- "ld 19, -208(1)\n"
- "cmpwi 19, 0x1919\n"
- "bne 1f\n"
- "ld 20, -216(1)\n"
- "cmpwi 20, 0x2020\n"
- "bne 1f\n"
- "ld 21, -224(1)\n"
- "cmpwi 21, 0x2121\n"
- "bne 1f\n"
- "ld 22, -232(1)\n"
- "cmpwi 22, 0x2222\n"
- "bne 1f\n"
- "ld 23, -240(1)\n"
- "cmpwi 23, 0x2323\n"
- "bne 1f\n"
- "ld 24, -248(1)\n"
- "cmpwi 24, 0x2424\n"
- "bne 1f\n"
- "ld 25, -256(1)\n"
- "cmpwi 25, 0x2525\n"
- "bne 1f\n"
- "ld 26, -264(1)\n"
- "cmpwi 26, 0x2626\n"
- "bne 1f\n"
- "ld 27, -272(1)\n"
- "cmpwi 27, 0x2727\n"
- "bne 1f\n"
- "ld 28, -280(1)\n"
- "cmpwi 28, 0x2828\n"
- "bne 1f\n"
- "ld 29, -288(1)\n"
- "cmpwi 29, 0x2929\n"
- "bne 1f\n"
-
- /* Load 0 (success) to return */
- "li 0, 0\n"
-
- "1: mr %0, 0\n"
-
- : "=r" (rc)
- : /* no inputs */
- : "3", "4", "5", "6", "7", "8", "9", "10", "11", "14",
- "15", "16", "17", "18", "19", "20", "21", "22", "23",
- "24", "25", "26", "27", "28", "29", "30", "31",
- "memory"
- );
-
- return rc;
-}
-
-int core_busy_loop_with_freeze(void)
-{
- int rc;
-
- mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~MMCR0_FC);
- rc = core_busy_loop();
- mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) | MMCR0_FC);
-
- return rc;
-}
-
int ebb_child(union pipe read_pipe, union pipe write_pipe)
{
struct event event;
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb.h b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
index e62bde05bf78..e44eee5d97ca 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
@@ -70,7 +70,6 @@ int ebb_check_mmcr0(void);
extern u64 sample_period;
int core_busy_loop(void);
-int core_busy_loop_with_freeze(void);
int ebb_child(union pipe read_pipe, union pipe write_pipe);
int catch_sigill(void (*func)(void));
void write_pmc1(void);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.