diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | tests/Makefile.am | 1 | ||||
| -rw-r--r-- | tests/gem_exec_faulting_reloc.c | 289 |
3 files changed, 291 insertions, 0 deletions
@@ -41,6 +41,7 @@ tests/gem_dummy_reloc_loop tests/gem_exec_blt tests/gem_exec_nop tests/gem_exec_bad_domains +tests/gem_exec_faulting_reloc tests/gem_fence_thrash tests/gem_fenced_exec_thrash tests/gem_flink diff --git a/tests/Makefile.am b/tests/Makefile.am index ec87cc72..c38a2cd2 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -21,6 +21,7 @@ TESTS_progs = \ gem_exec_nop \ gem_exec_blt \ gem_exec_bad_domains \ + gem_exec_faulting_reloc \ gem_flink \ gem_readwrite \ gem_ringfill \ diff --git a/tests/gem_exec_faulting_reloc.c b/tests/gem_exec_faulting_reloc.c new file mode 100644 index 00000000..b1ce0504 --- /dev/null +++ b/tests/gem_exec_faulting_reloc.c @@ -0,0 +1,289 @@ +/* + * 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 <daniel.vetter@ffwll.ch> + * + */ + +#include <unistd.h> +#include <stdlib.h> +#include <stdint.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 <sys/time.h> +#include "drm.h" +#include "i915_drm.h" +#include "drmtest.h" +#include "intel_chipset.h" +#include "intel_gpu_tools.h" + +/* Testcase: Submit patches with relocations in memory that will fault + * + * To be really evil, use a gtt mmap for them. + */ + +#define OBJECT_SIZE 16384 + +#define COPY_BLT_CMD (2<<29|0x53<<22|0x6) +#define BLT_WRITE_ALPHA (1<<21) +#define BLT_WRITE_RGB (1<<20) +#define BLT_SRC_TILED (1<<15) +#define BLT_DST_TILED (1<<11) + +static void * +mmap_bo(int fd, uint32_t handle) +{ + struct drm_i915_gem_mmap_gtt arg; + void *ptr; + int ret; + + memset(&arg, 0, sizeof(arg)); + + arg.handle = handle; + ret = ioctl(fd, DRM_IOCTL_I915_GEM_MMAP_GTT, &arg); + assert(ret == 0); + + ptr = mmap(0, 4096, PROT_READ | PROT_WRITE, + MAP_SHARED, fd, arg.offset); + assert(ptr != MAP_FAILED); + + return ptr; +} + +static uint32_t gem_create(int fd, int size) +{ + struct drm_i915_gem_create create; + + create.handle = 0; + create.size = (size + 4095) & -4096; + (void)drmIoctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create); + + return create.handle; +} + +static int gem_write(int fd, + uint32_t handle, uint32_t offset, + const void *src, int length) +{ + struct drm_i915_gem_pwrite pwrite; + + pwrite.handle = handle; + pwrite.offset = offset; + pwrite.size = length; + pwrite.data_ptr = (uintptr_t)src; + return drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite); +} + +static int gem_linear_blt(uint32_t *batch, + uint32_t src, + uint32_t dst, + uint32_t length, + struct drm_i915_gem_relocation_entry *reloc) +{ + uint32_t *b = batch; + int height = length / (16 * 1024); + + assert(height <= 1<<16); + + if (height) { + b[0] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB; + b[1] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024); + b[2] = 0; + b[3] = height << 16 | (4*1024); + b[4] = 0; + reloc->offset = (b-batch+4) * sizeof(uint32_t); + reloc->delta = 0; + reloc->target_handle = dst; + reloc->read_domains = I915_GEM_DOMAIN_RENDER; + reloc->write_domain = I915_GEM_DOMAIN_RENDER; + reloc->presumed_offset = 0; + reloc++; + + b[5] = 0; + b[6] = 16*1024; + b[7] = 0; + reloc->offset = (b-batch+7) * sizeof(uint32_t); + reloc->delta = 0; + reloc->target_handle = src; + reloc->read_domains = I915_GEM_DOMAIN_RENDER; + reloc->write_domain = 0; + reloc->presumed_offset = 0; + reloc++; + + b += 8; + length -= height * 16*1024; + } + + if (length) { + b[0] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB; + b[1] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024); + b[2] = height << 16; + b[3] = (1+height) << 16 | (length / 4); + b[4] = 0; + reloc->offset = (b-batch+4) * sizeof(uint32_t); + reloc->delta = 0; + reloc->target_handle = dst; + reloc->read_domains = I915_GEM_DOMAIN_RENDER; + reloc->write_domain = I915_GEM_DOMAIN_RENDER; + reloc->presumed_offset = 0; + reloc++; + + b[5] = height << 16; + b[6] = 16*1024; + b[7] = 0; + reloc->offset = (b-batch+7) * sizeof(uint32_t); + reloc->delta = 0; + reloc->target_handle = src; + reloc->read_domains = I915_GEM_DOMAIN_RENDER; + reloc->write_domain = 0; + reloc->presumed_offset = 0; + reloc++; + + b += 8; + } + + b[0] = MI_BATCH_BUFFER_END; + b[1] = 0; + + return (b+2 - batch) * sizeof(uint32_t); +} + +static void gem_close(int fd, uint32_t handle) +{ + struct drm_gem_close close; + + close.handle = handle; + (void)drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &close); +} + +static void gem_sync(int fd, uint32_t handle) +{ + struct drm_i915_gem_set_domain set_domain; + + set_domain.handle = handle; + set_domain.read_domains = I915_GEM_DOMAIN_GTT; + set_domain.write_domain = I915_GEM_DOMAIN_GTT; + + drmIoctl(fd, DRM_IOCTL_I915_GEM_SET_DOMAIN, &set_domain); +} + +static void gem_exec(int fd, struct drm_i915_gem_execbuffer2 *execbuf) +{ + int ret; + + ret = drmIoctl(fd, + DRM_IOCTL_I915_GEM_EXECBUFFER2, + execbuf); + assert(ret == 0); +} + +static void run(int object_size) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 exec[3]; + struct drm_i915_gem_relocation_entry reloc[4]; + uint32_t buf[20]; + uint32_t handle, handle_relocs, src, dst; + void *gtt_relocs; + int fd, len; + int ring, ret; + + fd = drm_open_any(); + handle = gem_create(fd, 4096); + src = gem_create(fd, object_size); + dst = gem_create(fd, object_size); + + len = gem_linear_blt(buf, src, dst, object_size, reloc); + gem_write(fd, handle, 0, buf, len); + + exec[0].handle = src; + exec[0].relocation_count = 0; + exec[0].relocs_ptr = 0; + exec[0].alignment = 0; + exec[0].offset = 0; + exec[0].flags = 0; + exec[0].rsvd1 = 0; + exec[0].rsvd2 = 0; + + exec[1].handle = dst; + exec[1].relocation_count = 0; + exec[1].relocs_ptr = 0; + exec[1].alignment = 0; + exec[1].offset = 0; + exec[1].flags = 0; + exec[1].rsvd1 = 0; + exec[1].rsvd2 = 0; + + handle_relocs = gem_create(fd, 4096); + ret = gem_write(fd, handle_relocs, 0, reloc, sizeof(reloc)); + assert(ret == 0); + gtt_relocs = mmap_bo(fd, handle_relocs); + assert(gtt_relocs); + + exec[2].handle = handle; + exec[2].relocation_count = len > 40 ? 4 : 2; + /* A newly mmap gtt bo will fault on first access. */ + exec[2].relocs_ptr = (uintptr_t)gtt_relocs; + exec[2].alignment = 0; + exec[2].offset = 0; + exec[2].flags = 0; + exec[2].rsvd1 = 0; + exec[2].rsvd2 = 0; + + ring = 0; + if (HAS_BLT_RING(intel_get_drm_devid(fd))) + ring = I915_EXEC_BLT; + + execbuf.buffers_ptr = (uintptr_t)exec; + execbuf.buffer_count = 3; + execbuf.batch_start_offset = 0; + execbuf.batch_len = len; + execbuf.cliprects_ptr = 0; + execbuf.num_cliprects = 0; + execbuf.DR1 = 0; + execbuf.DR4 = 0; + execbuf.flags = ring; + execbuf.rsvd1 = 0; + execbuf.rsvd2 = 0; + + gem_exec(fd, &execbuf); + gem_sync(fd, handle); + + gem_close(fd, handle); + + close(fd); +} + +int main(int argc, char **argv) +{ + run(OBJECT_SIZE); + + return 0; +} |