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https://github.com/tiagovignatti/intel-gpu-tools.git
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b8a77dd6c8
Rename the current gem_mmap__{cpu,gtt,wc}() functions into
__gem_mmap__{cpu,gtt,wc}(), and add back wrappers with the original name
that assert that the pointer is valid. Most callers will expect a valid
pointer and shouldn't have to bother with failures.
To avoid changing anything (yet), sed 's/gem_mmap__/__gem_mmap__/g'
over the entire codebase.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Stochastically-reviwewed-by: Chris Wilson <chris@chris-wilson.co.uk>
159 lines
3.9 KiB
C
159 lines
3.9 KiB
C
/*
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* Copyright © 2014 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Chris Wilson <chris@chris-wilson.co.uk>
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*
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*/
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#include "igt.h"
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <errno.h>
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#include <setjmp.h>
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#include <signal.h>
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#include "drm.h"
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IGT_TEST_DESCRIPTION("Checks that the kernel reports EFAULT when trying to use"
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" purged bo.");
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#define OBJECT_SIZE (1024*1024)
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/* Testcase: checks that the kernel reports EFAULT when trying to use purged bo
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*
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*/
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static jmp_buf jmp;
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static void sigtrap(int sig)
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{
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longjmp(jmp, sig);
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}
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static void
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dontneed_before_mmap(void)
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{
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int fd = drm_open_driver(DRIVER_INTEL);
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uint32_t handle;
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char *ptr;
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handle = gem_create(fd, OBJECT_SIZE);
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gem_madvise(fd, handle, I915_MADV_DONTNEED);
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ptr = __gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
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igt_assert(ptr == NULL);
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igt_assert(errno == EFAULT);
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close(fd);
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}
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static void
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dontneed_after_mmap(void)
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{
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int fd = drm_open_driver(DRIVER_INTEL);
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uint32_t handle;
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char *ptr;
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handle = gem_create(fd, OBJECT_SIZE);
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ptr = __gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
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igt_assert(ptr);
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gem_madvise(fd, handle, I915_MADV_DONTNEED);
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close(fd);
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signal(SIGBUS, sigtrap);
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switch (setjmp(jmp)) {
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case SIGBUS:
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break;
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case 0:
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*ptr = 0;
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default:
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igt_assert(!"reached");
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break;
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}
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munmap(ptr, OBJECT_SIZE);
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signal(SIGBUS, SIG_DFL);
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}
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static void
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dontneed_before_pwrite(void)
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{
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int fd = drm_open_driver(DRIVER_INTEL);
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uint32_t buf[] = { MI_BATCH_BUFFER_END, 0 };
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struct drm_i915_gem_pwrite gem_pwrite;
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gem_pwrite.handle = gem_create(fd, OBJECT_SIZE);
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gem_pwrite.offset = 0;
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gem_pwrite.size = sizeof(buf);
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gem_pwrite.data_ptr = (uintptr_t)buf;
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gem_madvise(fd, gem_pwrite.handle, I915_MADV_DONTNEED);
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igt_assert(drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &gem_pwrite));
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igt_assert(errno == EFAULT);
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gem_close(fd, gem_pwrite.handle);
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close(fd);
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}
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static void
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dontneed_before_exec(void)
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{
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int fd = drm_open_driver(DRIVER_INTEL);
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struct drm_i915_gem_execbuffer2 execbuf;
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struct drm_i915_gem_exec_object2 exec;
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uint32_t buf[] = { MI_BATCH_BUFFER_END, 0 };
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memset(&execbuf, 0, sizeof(execbuf));
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memset(&exec, 0, sizeof(exec));
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exec.handle = gem_create(fd, OBJECT_SIZE);
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gem_write(fd, exec.handle, 0, buf, sizeof(buf));
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gem_madvise(fd, exec.handle, I915_MADV_DONTNEED);
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execbuf.buffers_ptr = (uintptr_t)&exec;
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execbuf.buffer_count = 1;
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execbuf.batch_len = sizeof(buf);
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gem_execbuf(fd, &execbuf);
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gem_close(fd, exec.handle);
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close(fd);
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}
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igt_main
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{
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igt_skip_on_simulation();
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igt_subtest("dontneed-before-mmap")
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dontneed_before_mmap();
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igt_subtest("dontneed-after-mmap")
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dontneed_after_mmap();
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igt_subtest("dontneed-before-pwrite")
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dontneed_before_pwrite();
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igt_subtest("dontneed-before-exec")
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dontneed_before_exec();
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}
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