--- /dev/null
+# The loops are all 64-bit code
+CFLAGS += -m64
+CFLAGS += -I$(CURDIR)
+CFLAGS += -D SELFTEST
+
+# Use our CFLAGS for the implicit .S rule
+ASFLAGS = $(CFLAGS)
+
+PROGS := copyuser_64 copyuser_power7 memcpy_64 memcpy_power7
+EXTRA_SOURCES := validate.c ../harness.c
+
+all: $(PROGS)
+
+copyuser_64: CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_base
+copyuser_power7: CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_power7
+memcpy_64: CPPFLAGS += -D COPY_LOOP=test_memcpy
+memcpy_power7: CPPFLAGS += -D COPY_LOOP=test_memcpy_power7
+
+$(PROGS): $(EXTRA_SOURCES)
+
+run_tests: all
+ @-for PROG in $(PROGS); do \
+ ./$$PROG; \
+ done;
+
+clean:
+ rm -f $(PROGS) *.o
+
+.PHONY: all run_tests clean
--- /dev/null
+#include <ppc-asm.h>
+
+#define CONFIG_ALTIVEC
+
+#define r1 1
+
+#define vr0 0
+#define vr1 1
+#define vr2 2
+#define vr3 3
+#define vr4 4
+#define vr5 5
+#define vr6 6
+#define vr7 7
+#define vr8 8
+#define vr9 9
+#define vr10 10
+#define vr11 11
+#define vr12 12
+#define vr13 13
+#define vr14 14
+#define vr15 15
+#define vr16 16
+#define vr17 17
+#define vr18 18
+#define vr19 19
+#define vr20 20
+#define vr21 21
+#define vr22 22
+#define vr23 23
+#define vr24 24
+#define vr25 25
+#define vr26 26
+#define vr27 27
+#define vr28 28
+#define vr29 29
+#define vr30 30
+#define vr31 31
+
+#define R14 r14
+#define R15 r15
+#define R16 r16
+#define R17 r17
+#define R18 r18
+#define R19 r19
+#define R20 r20
+#define R21 r21
+#define R22 r22
+
+#define STACKFRAMESIZE 256
+#define STK_PARAM(i) (48 + ((i)-3)*8)
+#define STK_REG(i) (112 + ((i)-14)*8)
+
+#define _GLOBAL(A) FUNC_START(test_ ## A)
+
+#define PPC_MTOCRF(A, B) mtocrf A, B
+
+FUNC_START(enter_vmx_usercopy)
+ li r3,1
+ blr
+
+FUNC_START(exit_vmx_usercopy)
+ li r3,0
+ blr
+
+FUNC_START(enter_vmx_copy)
+ li r3,1
+ blr
+
+FUNC_START(exit_vmx_copy)
+ blr
+
+FUNC_START(memcpy_power7)
+ blr
+
+FUNC_START(__copy_tofrom_user_power7)
+ blr
+
+FUNC_START(__copy_tofrom_user_base)
+ blr
+
+#define BEGIN_FTR_SECTION
+#define FTR_SECTION_ELSE
+#define ALT_FTR_SECTION_END_IFCLR(x)
+#define ALT_FTR_SECTION_END(x, y)
+#define END_FTR_SECTION_IFCLR(x)
--- /dev/null
+#include <malloc.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include "../utils.h"
+
+#define MAX_LEN 8192
+#define MAX_OFFSET 16
+#define MIN_REDZONE 128
+#define BUFLEN (MAX_LEN+MAX_OFFSET+2*MIN_REDZONE)
+#define POISON 0xa5
+
+unsigned long COPY_LOOP(void *to, const void *from, unsigned long size);
+
+static void do_one(char *src, char *dst, unsigned long src_off,
+ unsigned long dst_off, unsigned long len, void *redzone,
+ void *fill)
+{
+ char *srcp, *dstp;
+ unsigned long ret;
+ unsigned long i;
+
+ srcp = src + MIN_REDZONE + src_off;
+ dstp = dst + MIN_REDZONE + dst_off;
+
+ memset(src, POISON, BUFLEN);
+ memset(dst, POISON, BUFLEN);
+ memcpy(srcp, fill, len);
+
+ ret = COPY_LOOP(dstp, srcp, len);
+ if (ret && ret != (unsigned long)dstp) {
+ printf("(%p,%p,%ld) returned %ld\n", dstp, srcp, len, ret);
+ abort();
+ }
+
+ if (memcmp(dstp, srcp, len)) {
+ printf("(%p,%p,%ld) miscompare\n", dstp, srcp, len);
+ printf("src: ");
+ for (i = 0; i < len; i++)
+ printf("%02x ", srcp[i]);
+ printf("\ndst: ");
+ for (i = 0; i < len; i++)
+ printf("%02x ", dstp[i]);
+ printf("\n");
+ abort();
+ }
+
+ if (memcmp(dst, redzone, dstp - dst)) {
+ printf("(%p,%p,%ld) redzone before corrupted\n",
+ dstp, srcp, len);
+ abort();
+ }
+
+ if (memcmp(dstp+len, redzone, dst+BUFLEN-(dstp+len))) {
+ printf("(%p,%p,%ld) redzone after corrupted\n",
+ dstp, srcp, len);
+ abort();
+ }
+}
+
+int test_copy_loop(void)
+{
+ char *src, *dst, *redzone, *fill;
+ unsigned long len, src_off, dst_off;
+ unsigned long i;
+
+ src = memalign(BUFLEN, BUFLEN);
+ dst = memalign(BUFLEN, BUFLEN);
+ redzone = malloc(BUFLEN);
+ fill = malloc(BUFLEN);
+
+ if (!src || !dst || !redzone || !fill) {
+ fprintf(stderr, "malloc failed\n");
+ exit(1);
+ }
+
+ memset(redzone, POISON, BUFLEN);
+
+ /* Fill with sequential bytes */
+ for (i = 0; i < BUFLEN; i++)
+ fill[i] = i & 0xff;
+
+ for (len = 1; len < MAX_LEN; len++) {
+ for (src_off = 0; src_off < MAX_OFFSET; src_off++) {
+ for (dst_off = 0; dst_off < MAX_OFFSET; dst_off++) {
+ do_one(src, dst, src_off, dst_off, len,
+ redzone, fill);
+ }
+ }
+ }
+
+ return 0;
+}
+
+int main(void)
+{
+ return test_harness(test_copy_loop, str(COPY_LOOP));
+}
projects / linux.git / commitdiff