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Code Issues Releases Wiki Activity

igt/gem_exec_whisper: Check for inconsistent reloc offset vs object offset

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2016-03-26 09:48:16 +00:00
parent 3fd9b910d2
commit 5dcb026348
1 changed files with 17 additions and 6 deletions
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23
tests/gem_exec_whisper.c
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@ -129,9 +129,11 @@ static void whisper(int fd, unsigned engine, unsigned flags)
unsigned nengine; unsigned nengine;
uint32_t batch[16]; uint32_t batch[16];
int i, n, pass, loc; int i, n, pass, loc;
unsigned int relocations = 0;
unsigned int reloc_migrations = 0; unsigned int reloc_migrations = 0;
unsigned int reloc_interruptions = 0; unsigned int reloc_interruptions = 0;
unsigned int eb_migrations = 0; unsigned int eb_migrations = 0;
uint64_t old_offset;
nengine = 0; nengine = 0;
if (engine == -1) { if (engine == -1) {
@ -252,7 +254,6 @@ static void whisper(int fd, unsigned engine, unsigned flags)
verify_reloc(fd, store.handle, &reloc); verify_reloc(fd, store.handle, &reloc);
execbuf.buffers_ptr = (uintptr_t)tmp; execbuf.buffers_ptr = (uintptr_t)tmp;
gem_execbuf(fd, &execbuf); gem_execbuf(fd, &execbuf);
reloc_interruptions += reloc.presumed_offset == -1;
igt_assert_eq_u64(reloc.presumed_offset, tmp[0].offset); igt_assert_eq_u64(reloc.presumed_offset, tmp[0].offset);
scratch = tmp[0]; scratch = tmp[0];
@ -264,6 +265,7 @@ static void whisper(int fd, unsigned engine, unsigned flags)
execbuf.buffers_ptr = (uintptr_t)&batches[n-1]; execbuf.buffers_ptr = (uintptr_t)&batches[n-1];
reloc_migrations += batches[n-1].offset != inter[n].presumed_offset; reloc_migrations += batches[n-1].offset != inter[n].presumed_offset;
batches[n-1].offset = inter[n].presumed_offset; batches[n-1].offset = inter[n].presumed_offset;
old_offset = inter[n].presumed_offset;
batches[n-1].relocation_count = 0; batches[n-1].relocation_count = 0;
batches[n-1].flags |= EXEC_OBJECT_WRITE; batches[n-1].flags |= EXEC_OBJECT_WRITE;
verify_reloc(fd, batches[n].handle, &inter[n]); verify_reloc(fd, batches[n].handle, &inter[n]);
@ -285,8 +287,12 @@ static void whisper(int fd, unsigned engine, unsigned flags)
if (flags & CONTEXTS) if (flags & CONTEXTS)
execbuf.rsvd1 = contexts[rand() % 64]; execbuf.rsvd1 = contexts[rand() % 64];
gem_execbuf(this_fd, &execbuf); gem_execbuf(this_fd, &execbuf);
reloc_interruptions += inter[n].presumed_offset == -1; if (inter[n].presumed_offset == -1) {
inter[n].presumed_offset = batches[n-1].offset; reloc_interruptions++;
inter[n].presumed_offset = batches[n-1].offset;
}
igt_assert_eq_u64(inter[n].presumed_offset, batches[n-1].offset);
relocations += inter[n].presumed_offset != old_offset;
batches[n-1].relocation_count = 1; batches[n-1].relocation_count = 1;
batches[n-1].flags &= ~EXEC_OBJECT_WRITE; batches[n-1].flags &= ~EXEC_OBJECT_WRITE;
@ -308,10 +314,16 @@ static void whisper(int fd, unsigned engine, unsigned flags)
tmp[0].flags = EXEC_OBJECT_WRITE; tmp[0].flags = EXEC_OBJECT_WRITE;
reloc_migrations += tmp[0].offset != inter[0].presumed_offset; reloc_migrations += tmp[0].offset != inter[0].presumed_offset;
tmp[0].offset = inter[0].presumed_offset; tmp[0].offset = inter[0].presumed_offset;
old_offset = tmp[0].offset;
tmp[1] = batches[0]; tmp[1] = batches[0];
verify_reloc(fd, batches[0].handle, &inter[0]); verify_reloc(fd, batches[0].handle, &inter[0]);
gem_execbuf(fd, &execbuf); gem_execbuf(fd, &execbuf);
reloc_interruptions += inter[0].presumed_offset == -1; if (inter[0].presumed_offset == -1) {
reloc_interruptions++;
inter[0].presumed_offset = tmp[0].offset;
}
igt_assert_eq_u64(inter[0].presumed_offset, tmp[0].offset);
relocations += inter[0].presumed_offset != old_offset;
batches[0] = tmp[1]; batches[0] = tmp[1];
tmp[1] = tmp[0]; tmp[1] = tmp[0];
@ -325,14 +337,13 @@ static void whisper(int fd, unsigned engine, unsigned flags)
gem_execbuf(fd, &execbuf); gem_execbuf(fd, &execbuf);
eb_migrations += tmp[0].offset != scratch.offset; eb_migrations += tmp[0].offset != scratch.offset;
eb_migrations += tmp[1].offset != store.offset; eb_migrations += tmp[1].offset != store.offset;
reloc_interruptions += reloc.presumed_offset == -1;
igt_assert_eq_u64(reloc.presumed_offset, tmp[0].offset); igt_assert_eq_u64(reloc.presumed_offset, tmp[0].offset);
store = tmp[1]; store = tmp[1];
scratch = tmp[0]; scratch = tmp[0];
} }
} }
igt_info("Number of migrations for execbuf: %d\n", eb_migrations); igt_info("Number of migrations for execbuf: %d\n", eb_migrations);
igt_info("Number of migrations for reloc: %d, interrupted %d\n", reloc_migrations, reloc_interruptions); igt_info("Number of migrations for reloc: %d, interrupted %d, patched %d\n", reloc_migrations, reloc_interruptions, relocations);
check_bo(fd, scratch.handle); check_bo(fd, scratch.handle);
gem_close(fd, scratch.handle); gem_close(fd, scratch.handle);