From 36d25cc7440ef9d37d16ea95ee0d51e5e6e2c5e2 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 11 Jan 2012 14:59:47 +0100 Subject: [PATCH] tests: add drm_vma_limiter variants that only check gtt/cpu mmaps Suggested by Chris Wilson. Signed-off-by: Daniel Vetter --- tests/Makefile.am | 2 + tests/drm_vma_limiter_cpu.c | 100 +++++++++++++++++++++++++++++++++++ tests/drm_vma_limiter_gtt.c | 101 ++++++++++++++++++++++++++++++++++++ 3 files changed, 203 insertions(+) create mode 100644 tests/drm_vma_limiter_cpu.c create mode 100644 tests/drm_vma_limiter_gtt.c diff --git a/tests/Makefile.am b/tests/Makefile.am index 4f29e537..9a060448 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -57,6 +57,8 @@ TESTS_progs = \ gem_unref_active_buffers \ gem_reloc_vs_gpu \ drm_vma_limiter \ + drm_vma_limiter_cpu \ + drm_vma_limiter_gtt \ $(NULL) TESTS_scripts = \ diff --git a/tests/drm_vma_limiter_cpu.c b/tests/drm_vma_limiter_cpu.c new file mode 100644 index 00000000..24ce188e --- /dev/null +++ b/tests/drm_vma_limiter_cpu.c @@ -0,0 +1,100 @@ +/* + * Copyright © 2011 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 + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "drm.h" +#include "i915_drm.h" +#include "drmtest.h" +#include "intel_bufmgr.h" +#include "intel_batchbuffer.h" +#include "intel_gpu_tools.h" + +static drm_intel_bufmgr *bufmgr; +struct intel_batchbuffer *batch; + +/* Testcase: check whether the libdrm vma limiter works + * + * We've had reports of the X server exhausting the default rlimit of 64k vma's + * in the kernel. libdrm has grown facilities to limit the vma caching since, + * this checks whether they actually work. + * + * This one checks cpu mmaps only. + */ + +#define BO_ARRAY_SIZE 68000 +drm_intel_bo *bos[BO_ARRAY_SIZE]; + +int main(int argc, char **argv) +{ + int fd; + int i; + char *ptr; + + fd = drm_open_any(); + + bufmgr = drm_intel_bufmgr_gem_init(fd, 4096); + drm_intel_bufmgr_gem_enable_reuse(bufmgr); + batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd)); + + drm_intel_bufmgr_gem_set_vma_cache_size(bufmgr, 500); + + for (i = 0; i < BO_ARRAY_SIZE; i++) { + bos[i] = drm_intel_bo_alloc(bufmgr, "mmap bo", 4096, 4096); + assert(bos[i]); + + drm_intel_bo_map(bos[i], 1); + ptr = bos[i]->virtual; + assert(ptr); + *ptr = 'c'; + drm_intel_bo_unmap(bos[i]); + } + + /* and recheck whether a second map of the same still works */ + for (i = 0; i < BO_ARRAY_SIZE; i++) { + bos[i] = drm_intel_bo_alloc(bufmgr, "mmap bo", 4096, 4096); + assert(bos[i]); + + drm_intel_bo_map(bos[i], 1); + ptr = bos[i]->virtual; + assert(*ptr = 'c'); + drm_intel_bo_unmap(bos[i]); + } + + intel_batchbuffer_free(batch); + drm_intel_bufmgr_destroy(bufmgr); + + close(fd); + + return 0; +} diff --git a/tests/drm_vma_limiter_gtt.c b/tests/drm_vma_limiter_gtt.c new file mode 100644 index 00000000..540ea917 --- /dev/null +++ b/tests/drm_vma_limiter_gtt.c @@ -0,0 +1,101 @@ +/* + * Copyright © 2011 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 + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "drm.h" +#include "i915_drm.h" +#include "drmtest.h" +#include "intel_bufmgr.h" +#include "intel_batchbuffer.h" +#include "intel_gpu_tools.h" + +static drm_intel_bufmgr *bufmgr; +struct intel_batchbuffer *batch; + +/* Testcase: check whether the libdrm vma limiter works + * + * We've had reports of the X server exhausting the default rlimit of 64k vma's + * in the kernel. libdrm has grown facilities to limit the vma caching since, + * this checks whether they actually work. + * + * This one checks cpu mmaps only. + */ + +/* we do both cpu and gtt maps, so only need half of 64k to exhaust */ +#define BO_ARRAY_SIZE 68000 +drm_intel_bo *bos[BO_ARRAY_SIZE]; + +int main(int argc, char **argv) +{ + int fd; + int i; + char *ptr; + + fd = drm_open_any(); + + bufmgr = drm_intel_bufmgr_gem_init(fd, 4096); + drm_intel_bufmgr_gem_enable_reuse(bufmgr); + batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd)); + + drm_intel_bufmgr_gem_set_vma_cache_size(bufmgr, 500); + + for (i = 0; i < BO_ARRAY_SIZE; i++) { + bos[i] = drm_intel_bo_alloc(bufmgr, "mmap bo", 4096, 4096); + assert(bos[i]); + + drm_intel_gem_bo_map_gtt(bos[i]); + ptr = bos[i]->virtual; + assert(ptr); + *ptr = 'c'; + drm_intel_gem_bo_unmap_gtt(bos[i]); + } + + /* and recheck whether a second map of the same still works */ + for (i = 0; i < BO_ARRAY_SIZE; i++) { + bos[i] = drm_intel_bo_alloc(bufmgr, "mmap bo", 4096, 4096); + assert(bos[i]); + + drm_intel_gem_bo_map_gtt(bos[i]); + ptr = bos[i]->virtual; + assert(*ptr = 'c'); + drm_intel_gem_bo_unmap_gtt(bos[i]); + } + + intel_batchbuffer_free(batch); + drm_intel_bufmgr_destroy(bufmgr); + + close(fd); + + return 0; +}