From ca4971292cf99e0063416cd1c3467af94637bf2b Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Thu, 10 Nov 2011 16:47:10 -0500 Subject: tests/radeon: radeon specific test Initial test only include ttm test for stressing ttm memory allocations. Signed-off-by: Jerome Glisse --- tests/radeon/radeon_ttm.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 tests/radeon/radeon_ttm.c (limited to 'tests/radeon/radeon_ttm.c') diff --git a/tests/radeon/radeon_ttm.c b/tests/radeon/radeon_ttm.c new file mode 100644 index 00000000..246fd993 --- /dev/null +++ b/tests/radeon/radeon_ttm.c @@ -0,0 +1,75 @@ +/* + * Copyright © 2011 Red Hat + * + * 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: + * Jerome Glisse + */ +#include +#include +#include "rbo.h" + +/* allocate as many single page bo to try to starve the kernel + * memory zone (below highmem) + */ +void ttm_starve_kernel_private_memory(int fd) +{ + struct list_head list; + struct rbo *bo, *tmp; + unsigned nbo = 0; + + printf("\n[%s]\n", __func__); + list_inithead(&list); + while (1) { + bo = rbo(fd, 0, 4096, 0, NULL); + if (bo == NULL) { + printf("failing after %d bo\n", nbo); + break; + } + nbo++; + list_add(&bo->list, &list); + } + LIST_FOR_EACH_ENTRY_SAFE(bo, tmp, &list, list) { + list_del(&bo->list); + rbo_decref(bo); + } +} + +int radeon_open_fd(void) +{ + return drmOpen("radeon", NULL); +} + +int main(void) +{ + int radeonfd; + + radeonfd = radeon_open_fd(); + if (radeonfd < 0) { + fprintf(stderr, "failed to open radeon fd\n"); + return -1; + } + + ttm_starve_kernel_private_memory(radeonfd); + + close(radeonfd); + return 0; +} -- cgit v1.2.3