tests/gem_exec_faulting_reloc.c - platform/external/igt-gpu-tools - Gitiles

 /*
  * 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 "igt.h"
 #include <unistd.h>
 #include <stdlib.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
 #include <fcntl.h>
 #include <inttypes.h>
 #include <errno.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include "drm.h"

 /* Testcase: Submit patches with relocations in memory that will fault
  *
  * To be really evil, use a gtt mmap for them.
  */

 IGT_TEST_DESCRIPTION("Submit patches with relocations in memory that will"
 		     " fault.");

 #define OBJECT_SIZE 16384

 #define COPY_BLT_CMD_NOLEN	(2<<29|0x53<<22)
 #define BLT_WRITE_ALPHA		(1<<21)
 #define BLT_WRITE_RGB		(1<<20)
 #define BLT_SRC_TILED		(1<<15)
 #define BLT_DST_TILED		(1<<11)

 uint32_t devid;

 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);

 	igt_assert_lte(height, 1 << 16);

 	if (height) {
 		int i = 0;
 		b[i++] = COPY_BLT_CMD_NOLEN | BLT_WRITE_ALPHA | BLT_WRITE_RGB;
 		if (intel_gen(devid) >= 8)
 			b[i-1] |= 8;
 		else
 			b[i-1] |= 6;
 		b[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024);
 		b[i++] = 0;
 		b[i++] = height << 16 | (4*1024);
 		b[i++] = 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++;

 		if (intel_gen(devid) >= 8)
 			b[i++] = 0; /* FIXME: use real high dword */

 		b[i++] = 0;
 		b[i++] = 16*1024;
 		b[i++] = 0;
 		reloc->offset = (b-batch+7) * sizeof(uint32_t);
 		if (intel_gen(devid) >= 8) {
 			reloc->offset += sizeof(uint32_t);
 			b[i++] = 0; /* FIXME: use real high dword */
 		}
 		reloc->delta = 0;
 		reloc->target_handle = src;
 		reloc->read_domains = I915_GEM_DOMAIN_RENDER;
 		reloc->write_domain = 0;
 		reloc->presumed_offset = 0;
 		reloc++;

 		if (intel_gen(devid) >= 8)
 			b += 10;
 		else
 			b += 8;
 		length -= height * 16*1024;
 	}

 	if (length) {
 		int i = 0;
 		b[i++] = COPY_BLT_CMD_NOLEN | BLT_WRITE_ALPHA | BLT_WRITE_RGB;
 		if (intel_gen(devid) >= 8)
 			b[i-1] |= 8;
 		else
 			b[i-1] |= 6;
 		b[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024);
 		b[i++] = height << 16;
 		b[i++] = (1+height) << 16 | (length / 4);
 		b[i++] = 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++;
 		if (intel_gen(devid) >= 8)
 			b[i++] = 0; /* FIXME: use real high dword */

 		b[i++] = height << 16;
 		b[i++] = 16*1024;
 		b[i++] = 0;
 		reloc->offset = (b-batch+7) * sizeof(uint32_t);
 		if (intel_gen(devid) >= 8) {
 			reloc->offset += sizeof(uint32_t);
 			b[i++] = 0; /* FIXME: use real high dword */
 		}
 		reloc->delta = 0;
 		reloc->target_handle = src;
 		reloc->read_domains = I915_GEM_DOMAIN_RENDER;
 		reloc->write_domain = 0;
 		reloc->presumed_offset = 0;
 		reloc++;

 		if (intel_gen(devid) >= 8)
 			b += 10;
 		else
 			b += 8;
 	}

 	b[0] = MI_BATCH_BUFFER_END;
 	b[1] = 0;

 	return (b+2 - batch) * sizeof(uint32_t);
 }

 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[40];
 	uint32_t handle, handle_relocs, src, dst;
 	void *gtt_relocs;
 	int fd, len;
 	int ring;

 	fd = drm_open_driver(DRIVER_INTEL);
 	devid = intel_get_drm_devid(fd);
 	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);
 	gem_write(fd, handle_relocs, 0, reloc, sizeof(reloc));
 	gtt_relocs = gem_mmap(fd, handle_relocs, 4096,
 			      PROT_READ | PROT_WRITE);
 	igt_assert(gtt_relocs);

 	exec[2].handle = handle;
 	if (intel_gen(devid) >= 8)
 		exec[2].relocation_count = len > 56 ? 4 : 2;
 	else
 		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(devid))
 		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;
 	i915_execbuffer2_set_context_id(execbuf, 0);
 	execbuf.rsvd2 = 0;

 	gem_execbuf(fd, &execbuf);
 	gem_sync(fd, handle);

 	gem_close(fd, handle);

 	close(fd);
 }

 igt_main
 {
 	igt_subtest("normal")
 		run(OBJECT_SIZE);
 	igt_subtest("no-prefault") {
 		igt_disable_prefault();
 		run(OBJECT_SIZE);
 		igt_enable_prefault();
 	}
 }
	/*
	* 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 "igt.h"
	#include <unistd.h>
	#include <stdlib.h>
	#include <stdint.h>
	#include <stdio.h>
	#include <string.h>
	#include <fcntl.h>
	#include <inttypes.h>
	#include <errno.h>
	#include <sys/stat.h>
	#include <sys/ioctl.h>
	#include <sys/time.h>
	#include "drm.h"

	/* Testcase: Submit patches with relocations in memory that will fault
	*
	* To be really evil, use a gtt mmap for them.
	*/

	IGT_TEST_DESCRIPTION("Submit patches with relocations in memory that will"
	" fault.");

	#define OBJECT_SIZE 16384

	#define COPY_BLT_CMD_NOLEN (2<<29\|0x53<<22)
	#define BLT_WRITE_ALPHA (1<<21)
	#define BLT_WRITE_RGB (1<<20)
	#define BLT_SRC_TILED (1<<15)
	#define BLT_DST_TILED (1<<11)

	uint32_t devid;

	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);

	igt_assert_lte(height, 1 << 16);

	if (height) {
	int i = 0;
	b[i++] = COPY_BLT_CMD_NOLEN \| BLT_WRITE_ALPHA \| BLT_WRITE_RGB;
	if (intel_gen(devid) >= 8)
	b[i-1] \|= 8;
	else
	b[i-1] \|= 6;
	b[i++] = 0xcc << 16 \| 1 << 25 \| 1 << 24 \| (16*1024);
	b[i++] = 0;
	b[i++] = height << 16 \| (4*1024);
	b[i++] = 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++;

	if (intel_gen(devid) >= 8)
	b[i++] = 0; /* FIXME: use real high dword */

	b[i++] = 0;
	b[i++] = 16*1024;
	b[i++] = 0;
	reloc->offset = (b-batch+7) * sizeof(uint32_t);
	if (intel_gen(devid) >= 8) {
	reloc->offset += sizeof(uint32_t);
	b[i++] = 0; /* FIXME: use real high dword */
	}
	reloc->delta = 0;
	reloc->target_handle = src;
	reloc->read_domains = I915_GEM_DOMAIN_RENDER;
	reloc->write_domain = 0;
	reloc->presumed_offset = 0;
	reloc++;

	if (intel_gen(devid) >= 8)
	b += 10;
	else
	b += 8;
	length -= height * 16*1024;
	}

	if (length) {
	int i = 0;
	b[i++] = COPY_BLT_CMD_NOLEN \| BLT_WRITE_ALPHA \| BLT_WRITE_RGB;
	if (intel_gen(devid) >= 8)
	b[i-1] \|= 8;
	else
	b[i-1] \|= 6;
	b[i++] = 0xcc << 16 \| 1 << 25 \| 1 << 24 \| (16*1024);
	b[i++] = height << 16;
	b[i++] = (1+height) << 16 \| (length / 4);
	b[i++] = 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++;
	if (intel_gen(devid) >= 8)
	b[i++] = 0; /* FIXME: use real high dword */

	b[i++] = height << 16;
	b[i++] = 16*1024;
	b[i++] = 0;
	reloc->offset = (b-batch+7) * sizeof(uint32_t);
	if (intel_gen(devid) >= 8) {
	reloc->offset += sizeof(uint32_t);
	b[i++] = 0; /* FIXME: use real high dword */
	}
	reloc->delta = 0;
	reloc->target_handle = src;
	reloc->read_domains = I915_GEM_DOMAIN_RENDER;
	reloc->write_domain = 0;
	reloc->presumed_offset = 0;
	reloc++;

	if (intel_gen(devid) >= 8)
	b += 10;
	else
	b += 8;
	}

	b[0] = MI_BATCH_BUFFER_END;
	b[1] = 0;

	return (b+2 - batch) * sizeof(uint32_t);
	}

	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[40];
	uint32_t handle, handle_relocs, src, dst;
	void *gtt_relocs;
	int fd, len;
	int ring;

	fd = drm_open_driver(DRIVER_INTEL);
	devid = intel_get_drm_devid(fd);
	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);
	gem_write(fd, handle_relocs, 0, reloc, sizeof(reloc));
	gtt_relocs = gem_mmap(fd, handle_relocs, 4096,
	PROT_READ \| PROT_WRITE);
	igt_assert(gtt_relocs);

	exec[2].handle = handle;
	if (intel_gen(devid) >= 8)
	exec[2].relocation_count = len > 56 ? 4 : 2;
	else
	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(devid))
	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;
	i915_execbuffer2_set_context_id(execbuf, 0);
	execbuf.rsvd2 = 0;

	gem_execbuf(fd, &execbuf);
	gem_sync(fd, handle);

	gem_close(fd, handle);

	close(fd);
	}

	igt_main
	{
	igt_subtest("normal")
	run(OBJECT_SIZE);
	igt_subtest("no-prefault") {
	igt_disable_prefault();
	run(OBJECT_SIZE);
	igt_enable_prefault();
	}
	}