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254 lines
6.4 KiB
254 lines
6.4 KiB
/*
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* Copyright © 2011 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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* Daniel Vetter <daniel.vetter@ffwll.ch>
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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 <stdint.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 <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include "drm.h"
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/* Testcase: Submit patches with relocations in memory that will fault
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*
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* To be really evil, use a gtt mmap for them.
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*/
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IGT_TEST_DESCRIPTION("Submit patches with relocations in memory that will"
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" fault.");
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#define OBJECT_SIZE 16384
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#define COPY_BLT_CMD_NOLEN (2<<29|0x53<<22)
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#define BLT_WRITE_ALPHA (1<<21)
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#define BLT_WRITE_RGB (1<<20)
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#define BLT_SRC_TILED (1<<15)
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#define BLT_DST_TILED (1<<11)
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uint32_t devid;
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static int gem_linear_blt(uint32_t *batch,
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uint32_t src,
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uint32_t dst,
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uint32_t length,
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struct drm_i915_gem_relocation_entry *reloc)
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{
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uint32_t *b = batch;
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int height = length / (16 * 1024);
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igt_assert_lte(height, 1 << 16);
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if (height) {
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int i = 0;
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b[i++] = COPY_BLT_CMD_NOLEN | BLT_WRITE_ALPHA | BLT_WRITE_RGB;
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if (intel_gen(devid) >= 8)
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b[i-1] |= 8;
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else
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b[i-1] |= 6;
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b[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024);
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b[i++] = 0;
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b[i++] = height << 16 | (4*1024);
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b[i++] = 0;
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reloc->offset = (b-batch+4) * sizeof(uint32_t);
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reloc->delta = 0;
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reloc->target_handle = dst;
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reloc->read_domains = I915_GEM_DOMAIN_RENDER;
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reloc->write_domain = I915_GEM_DOMAIN_RENDER;
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reloc->presumed_offset = 0;
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reloc++;
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if (intel_gen(devid) >= 8)
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b[i++] = 0; /* FIXME: use real high dword */
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b[i++] = 0;
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b[i++] = 16*1024;
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b[i++] = 0;
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reloc->offset = (b-batch+7) * sizeof(uint32_t);
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if (intel_gen(devid) >= 8) {
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reloc->offset += sizeof(uint32_t);
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b[i++] = 0; /* FIXME: use real high dword */
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}
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reloc->delta = 0;
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reloc->target_handle = src;
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reloc->read_domains = I915_GEM_DOMAIN_RENDER;
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reloc->write_domain = 0;
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reloc->presumed_offset = 0;
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reloc++;
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if (intel_gen(devid) >= 8)
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b += 10;
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else
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b += 8;
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length -= height * 16*1024;
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}
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if (length) {
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int i = 0;
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b[i++] = COPY_BLT_CMD_NOLEN | BLT_WRITE_ALPHA | BLT_WRITE_RGB;
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if (intel_gen(devid) >= 8)
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b[i-1] |= 8;
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else
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b[i-1] |= 6;
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b[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024);
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b[i++] = height << 16;
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b[i++] = (1+height) << 16 | (length / 4);
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b[i++] = 0;
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reloc->offset = (b-batch+4) * sizeof(uint32_t);
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reloc->delta = 0;
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reloc->target_handle = dst;
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reloc->read_domains = I915_GEM_DOMAIN_RENDER;
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reloc->write_domain = I915_GEM_DOMAIN_RENDER;
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reloc->presumed_offset = 0;
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reloc++;
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if (intel_gen(devid) >= 8)
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b[i++] = 0; /* FIXME: use real high dword */
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b[i++] = height << 16;
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b[i++] = 16*1024;
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b[i++] = 0;
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reloc->offset = (b-batch+7) * sizeof(uint32_t);
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if (intel_gen(devid) >= 8) {
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reloc->offset += sizeof(uint32_t);
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b[i++] = 0; /* FIXME: use real high dword */
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}
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reloc->delta = 0;
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reloc->target_handle = src;
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reloc->read_domains = I915_GEM_DOMAIN_RENDER;
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reloc->write_domain = 0;
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reloc->presumed_offset = 0;
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reloc++;
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if (intel_gen(devid) >= 8)
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b += 10;
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else
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b += 8;
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}
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b[0] = MI_BATCH_BUFFER_END;
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b[1] = 0;
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return (b+2 - batch) * sizeof(uint32_t);
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}
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static void run(int object_size)
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{
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struct drm_i915_gem_execbuffer2 execbuf;
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struct drm_i915_gem_exec_object2 exec[3];
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struct drm_i915_gem_relocation_entry reloc[4];
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uint32_t buf[40];
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uint32_t handle, handle_relocs, src, dst;
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void *gtt_relocs;
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int fd, len;
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int ring;
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fd = drm_open_driver(DRIVER_INTEL);
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igt_require_gem(fd);
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devid = intel_get_drm_devid(fd);
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handle = gem_create(fd, 4096);
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src = gem_create(fd, object_size);
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dst = gem_create(fd, object_size);
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len = gem_linear_blt(buf, src, dst, object_size, reloc);
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gem_write(fd, handle, 0, buf, len);
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exec[0].handle = src;
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exec[0].relocation_count = 0;
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exec[0].relocs_ptr = 0;
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exec[0].alignment = 0;
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exec[0].offset = 0;
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exec[0].flags = 0;
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exec[0].rsvd1 = 0;
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exec[0].rsvd2 = 0;
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exec[1].handle = dst;
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exec[1].relocation_count = 0;
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exec[1].relocs_ptr = 0;
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exec[1].alignment = 0;
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exec[1].offset = 0;
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exec[1].flags = 0;
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exec[1].rsvd1 = 0;
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exec[1].rsvd2 = 0;
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handle_relocs = gem_create(fd, 4096);
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gem_write(fd, handle_relocs, 0, reloc, sizeof(reloc));
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gtt_relocs = gem_mmap__gtt(fd, handle_relocs, 4096,
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PROT_READ | PROT_WRITE);
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exec[2].handle = handle;
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if (intel_gen(devid) >= 8)
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exec[2].relocation_count = len > 56 ? 4 : 2;
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else
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exec[2].relocation_count = len > 40 ? 4 : 2;
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/* A newly mmap gtt bo will fault on first access. */
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exec[2].relocs_ptr = to_user_pointer(gtt_relocs);
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exec[2].alignment = 0;
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exec[2].offset = 0;
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exec[2].flags = 0;
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exec[2].rsvd1 = 0;
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exec[2].rsvd2 = 0;
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ring = 0;
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if (HAS_BLT_RING(devid))
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ring = I915_EXEC_BLT;
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execbuf.buffers_ptr = to_user_pointer(exec);
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execbuf.buffer_count = 3;
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execbuf.batch_start_offset = 0;
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execbuf.batch_len = len;
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execbuf.cliprects_ptr = 0;
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execbuf.num_cliprects = 0;
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execbuf.DR1 = 0;
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execbuf.DR4 = 0;
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execbuf.flags = ring;
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i915_execbuffer2_set_context_id(execbuf, 0);
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execbuf.rsvd2 = 0;
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gem_execbuf(fd, &execbuf);
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gem_sync(fd, handle);
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gem_close(fd, 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_subtest("normal")
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run(OBJECT_SIZE);
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igt_subtest("no-prefault") {
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igt_disable_prefault();
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run(OBJECT_SIZE);
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igt_enable_prefault();
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}
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}
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