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igt/gem_shrink: Include a shrinker vs GPU hang

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2016-03-23 09:53:34 +00:00
parent 54ec3782dc
commit a9436e6693
1 changed files with 37 additions and 2 deletions
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39
tests/gem_shrink.c
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@ -52,7 +52,7 @@ static void mmap_gtt(uint64_t alloc, int timeout)
uint32_t *ptr = gem_mmap__gtt(fd, handle, alloc, PROT_WRITE); uint32_t *ptr = gem_mmap__gtt(fd, handle, alloc, PROT_WRITE);
for (int page = 0; page < alloc >>12; page++) for (int page = 0; page < alloc >>12; page++)
ptr[page<<10] = 0; ptr[page<<10] = 0;
munmap(ptr, handle); munmap(ptr, alloc);
gem_close(fd, handle); gem_close(fd, handle);
} }
close(fd); close(fd);
@ -66,7 +66,7 @@ static void mmap_cpu(uint64_t alloc, int timeout)
uint32_t *ptr = gem_mmap__cpu(fd, handle, 0, alloc, PROT_WRITE); uint32_t *ptr = gem_mmap__cpu(fd, handle, 0, alloc, PROT_WRITE);
for (int page = 0; page < alloc >>12; page++) for (int page = 0; page < alloc >>12; page++)
ptr[page<<10] = 0; ptr[page<<10] = 0;
munmap(ptr, handle); munmap(ptr, alloc);
gem_close(fd, handle); gem_close(fd, handle);
} }
close(fd); close(fd);
@ -126,6 +126,40 @@ static void execbufN(uint64_t alloc, int timeout)
close(fd); close(fd);
} }
static void hang(uint64_t alloc, int timeout)
{
const uint32_t bbe = MI_BATCH_BUFFER_END;
struct drm_i915_gem_exec_object2 *obj;
struct drm_i915_gem_execbuffer2 execbuf;
int count = alloc >> 20;
int fd;
obj = calloc(alloc + 1, sizeof(&obj));
memset(&execbuf, 0, sizeof(execbuf));
fd = drm_open_driver(DRIVER_INTEL);
obj[count].handle = gem_create(fd, 4096);
gem_write(fd, obj[count].handle, 0, &bbe, sizeof(bbe));
igt_timeout(timeout) {
for (int i = 0; i < count; i++) {
int j = count - i - 1;
obj[j].handle = gem_create(fd, alloc >> 20);
execbuf.buffers_ptr = (uintptr_t)&obj[j];
execbuf.buffer_count = i + 1;
gem_execbuf(fd, &execbuf);
}
gem_close(fd, igt_hang_ring(fd, 0).handle);
for (int i = 0; i < count; i++)
gem_close(fd, obj[i].handle);
}
close(fd);
}
#define SOLO 1 #define SOLO 1
#define PURGEABLE 2 #define PURGEABLE 2
@ -171,6 +205,7 @@ igt_main
{ "mmap-cpu", mmap_cpu }, { "mmap-cpu", mmap_cpu },
{ "execbuf1", execbuf1 }, { "execbuf1", execbuf1 },
{ "execbufN", execbufN }, { "execbufN", execbufN },
{ "hang", hang },
{ NULL }, { NULL },
}; };
const struct mode { const struct mode {