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igt/gem_shrink: Add pread/pwrite stress

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2016-04-02 16:37:20 +01:00
parent d081953e67
commit 88bfe6ac41
1 changed files with 22 additions and 2 deletions
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24
tests/gem_shrink.c
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@ -40,11 +40,29 @@ static void get_pages(int fd, uint64_t alloc)
gem_madvise(fd, handle, I915_MADV_DONTNEED); gem_madvise(fd, handle, I915_MADV_DONTNEED);
} }
static void pwrite_(int fd, uint64_t alloc)
{
uint32_t tmp;
uint32_t handle = gem_create(fd, alloc);
for (int page = 0; page < alloc>>12; page++)
gem_write(fd, handle, (page + page % 4095) & ~3, &tmp, 4);
gem_madvise(fd, handle, I915_MADV_DONTNEED);
}
static void pread_(int fd, uint64_t alloc)
{
uint32_t tmp;
uint32_t handle = gem_create(fd, alloc);
for (int page = 0; page < alloc>>12; page++)
gem_read(fd, handle, (page + page % 4095) & ~3, &tmp, 4);
gem_madvise(fd, handle, I915_MADV_DONTNEED);
}
static void mmap_gtt(int fd, uint64_t alloc) static void mmap_gtt(int fd, uint64_t alloc)
{ {
uint32_t handle = gem_create(fd, alloc); uint32_t handle = gem_create(fd, alloc);
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, alloc); munmap(ptr, alloc);
gem_madvise(fd, handle, I915_MADV_DONTNEED); gem_madvise(fd, handle, I915_MADV_DONTNEED);
@ -54,7 +72,7 @@ static void mmap_cpu(int fd, uint64_t alloc)
{ {
uint32_t handle = gem_create(fd, alloc); uint32_t handle = gem_create(fd, alloc);
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, alloc); munmap(ptr, alloc);
gem_madvise(fd, handle, I915_MADV_DONTNEED); gem_madvise(fd, handle, I915_MADV_DONTNEED);
@ -165,6 +183,8 @@ igt_main
void (*func)(int, uint64_t); void (*func)(int, uint64_t);
} tests[] = { } tests[] = {
{ "get-pages", get_pages }, { "get-pages", get_pages },
{ "pwrite", pwrite_ },
{ "pread", pread_ },
{ "mmap-gtt", mmap_gtt }, { "mmap-gtt", mmap_gtt },
{ "mmap-cpu", mmap_cpu }, { "mmap-cpu", mmap_cpu },
{ "execbuf1", execbuf1 }, { "execbuf1", execbuf1 },