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Diffstat (limited to 'tests/gem_set_tiling_vs_pwrite.c')
-rw-r--r-- | tests/gem_set_tiling_vs_pwrite.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/tests/gem_set_tiling_vs_pwrite.c b/tests/gem_set_tiling_vs_pwrite.c new file mode 100644 index 00000000..217cbea1 --- /dev/null +++ b/tests/gem_set_tiling_vs_pwrite.c @@ -0,0 +1,101 @@ +/* + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Daniel Vetter <daniel.vetter@ffwll.ch> + * + */ + +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <fcntl.h> +#include <inttypes.h> +#include <errno.h> +#include <sys/stat.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include "drm.h" +#include "i915_drm.h" +#include "drmtest.h" +#include "intel_gpu_tools.h" + +#define OBJECT_SIZE (1024*1024) +#define TEST_STRIDE (1024*4) + +/** + * Testcase: Check set_tiling vs pwrite coherency + */ + +int main(int argc, char **argv) +{ + int fd; + uint32_t *ptr; + uint32_t data[OBJECT_SIZE/4]; + int i; + uint32_t handle; + + fd = drm_open_any(); + + for (i = 0; i < OBJECT_SIZE/4; i++) + data[i] = i; + + handle = gem_create(fd, OBJECT_SIZE); + ptr = gem_mmap(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE); + assert(ptr); + + gem_set_tiling(fd, handle, I915_TILING_X, TEST_STRIDE); + +#if 0 + /* touch it */ + gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); + *ptr = 0xdeadbeef; + + printf("testing pwrite on tiled buffer\n"); + gem_write(fd, handle, 0, data, OBJECT_SIZE); + memset(data, 0, OBJECT_SIZE); + gem_read(fd, handle, 0, data, OBJECT_SIZE); + for (i = 0; i < OBJECT_SIZE/4; i++) + assert(i == data[i]); +#endif + + /* touch it before changing the tiling, so that the fence sticks around */ + gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); + *ptr = 0xdeadbeef; + + gem_set_tiling(fd, handle, I915_TILING_NONE, 0); + + printf("testing pwrite on untiled, but still fenced buffer\n"); + gem_write(fd, handle, 0, data, OBJECT_SIZE); + memset(data, 0, OBJECT_SIZE); + gem_read(fd, handle, 0, data, OBJECT_SIZE); + for (i = 0; i < OBJECT_SIZE/4; i++) + assert(i == data[i]); + + munmap(ptr, OBJECT_SIZE); + + close(fd); + + return 0; +} |