test: Exercise gen3 render copies
gem_stress is unhappy with tiled render copies on gen3. This is a simple
little test to ensure that a set of pure copies with a working set
larger than the aperture are handled correctly.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/tests/gen3_render_linear_blits.c b/tests/gen3_render_linear_blits.c
new file mode 100644
index 0000000..2d5e26e
--- /dev/null
+++ b/tests/gen3_render_linear_blits.c
@@ -0,0 +1,454 @@
+/*
+ * 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:
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ *
+ */
+
+/** @file gen3_linear_render_blits.c
+ *
+ * This is a test of doing many blits, with a working set
+ * larger than the aperture size.
+ *
+ * The goal is to simply ensure the basics work.
+ */
+
+#include <stdlib.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/time.h>
+#include "drm.h"
+#include "i915_drm.h"
+#include "drmtest.h"
+#include "intel_gpu_tools.h"
+
+#include "i915_reg.h"
+#include "i915_3d.h"
+
+#define WIDTH 512
+#define HEIGHT 512
+
+static uint32_t linear[WIDTH*HEIGHT];
+
+static inline uint32_t pack_float(float f)
+{
+ union {
+ uint32_t dw;
+ float f;
+ } u;
+ u.f = f;
+ return u.dw;
+}
+
+static uint32_t gem_create(int fd, int size)
+{
+ struct drm_i915_gem_create create;
+
+ create.handle = 0;
+ create.size = size;
+ (void)drmIoctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
+ assert(create.handle);
+
+ return create.handle;
+}
+
+static void gem_close(int fd, uint32_t handle)
+{
+ struct drm_gem_close close;
+ int ret;
+
+ close.handle = handle;
+ ret = drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &close);
+ assert(ret == 0);
+}
+
+static uint64_t
+gem_aperture_size(int fd)
+{
+ struct drm_i915_gem_get_aperture aperture;
+
+ aperture.aper_size = 512*1024*1024;
+ (void)drmIoctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture);
+ return aperture.aper_size;
+}
+
+static void
+gem_write(int fd, uint32_t handle, int offset, int size, const void *buf)
+{
+ struct drm_i915_gem_pwrite pwrite;
+ int ret;
+
+ pwrite.handle = handle;
+ pwrite.offset = offset;
+ pwrite.size = size;
+ pwrite.data_ptr = (uintptr_t)buf;
+ ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &pwrite);
+ assert(ret == 0);
+}
+
+static void
+gem_read(int fd, uint32_t handle, int offset, int size, void *buf)
+{
+ struct drm_i915_gem_pread pread;
+ int ret;
+
+ pread.handle = handle;
+ pread.offset = offset;
+ pread.size = size;
+ pread.data_ptr = (uintptr_t)buf;
+ ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_PREAD, &pread);
+ assert(ret == 0);
+}
+
+static uint32_t fill_reloc(struct drm_i915_gem_relocation_entry *reloc,
+ uint32_t offset,
+ uint32_t handle,
+ uint32_t read_domain,
+ uint32_t write_domain)
+{
+ reloc->target_handle = handle;
+ reloc->delta = 0;
+ reloc->offset = offset * sizeof(uint32_t);
+ reloc->presumed_offset = 0;
+ reloc->read_domains = read_domain;
+ reloc->write_domain = write_domain;
+
+ return reloc->presumed_offset + reloc->delta;
+}
+
+static void
+copy(int fd, uint32_t dst, uint32_t src)
+{
+ uint32_t batch[1024], *b = batch;
+ struct drm_i915_gem_relocation_entry reloc[2], *r = reloc;
+ struct drm_i915_gem_exec_object2 obj[3];
+ struct drm_i915_gem_execbuffer2 exec;
+ uint32_t handle;
+ int ret;
+
+ /* invariant state */
+ *b++ = (_3DSTATE_AA_CMD |
+ AA_LINE_ECAAR_WIDTH_ENABLE |
+ AA_LINE_ECAAR_WIDTH_1_0 |
+ AA_LINE_REGION_WIDTH_ENABLE | AA_LINE_REGION_WIDTH_1_0);
+ *b++ = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD |
+ IAB_MODIFY_ENABLE |
+ IAB_MODIFY_FUNC | (BLENDFUNC_ADD << IAB_FUNC_SHIFT) |
+ IAB_MODIFY_SRC_FACTOR | (BLENDFACT_ONE <<
+ IAB_SRC_FACTOR_SHIFT) |
+ IAB_MODIFY_DST_FACTOR | (BLENDFACT_ZERO <<
+ IAB_DST_FACTOR_SHIFT));
+ *b++ = (_3DSTATE_DFLT_DIFFUSE_CMD);
+ *b++ = (0);
+ *b++ = (_3DSTATE_DFLT_SPEC_CMD);
+ *b++ = (0);
+ *b++ = (_3DSTATE_DFLT_Z_CMD);
+ *b++ = (0);
+ *b++ = (_3DSTATE_COORD_SET_BINDINGS |
+ CSB_TCB(0, 0) |
+ CSB_TCB(1, 1) |
+ CSB_TCB(2, 2) |
+ CSB_TCB(3, 3) |
+ CSB_TCB(4, 4) |
+ CSB_TCB(5, 5) | CSB_TCB(6, 6) | CSB_TCB(7, 7));
+ *b++ = (_3DSTATE_RASTER_RULES_CMD |
+ ENABLE_POINT_RASTER_RULE |
+ OGL_POINT_RASTER_RULE |
+ ENABLE_LINE_STRIP_PROVOKE_VRTX |
+ ENABLE_TRI_FAN_PROVOKE_VRTX |
+ LINE_STRIP_PROVOKE_VRTX(1) |
+ TRI_FAN_PROVOKE_VRTX(2) | ENABLE_TEXKILL_3D_4D | TEXKILL_4D);
+ *b++ = (_3DSTATE_MODES_4_CMD |
+ ENABLE_LOGIC_OP_FUNC | LOGIC_OP_FUNC(LOGICOP_COPY) |
+ ENABLE_STENCIL_WRITE_MASK | STENCIL_WRITE_MASK(0xff) |
+ ENABLE_STENCIL_TEST_MASK | STENCIL_TEST_MASK(0xff));
+ *b++ = (_3DSTATE_LOAD_STATE_IMMEDIATE_1 | I1_LOAD_S(3) | I1_LOAD_S(4) | I1_LOAD_S(5) | 2);
+ *b++ = (0x00000000); /* Disable texture coordinate wrap-shortest */
+ *b++ = ((1 << S4_POINT_WIDTH_SHIFT) |
+ S4_LINE_WIDTH_ONE |
+ S4_CULLMODE_NONE |
+ S4_VFMT_XY);
+ *b++ = (0x00000000); /* Stencil. */
+ *b++ = (_3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT);
+ *b++ = (_3DSTATE_SCISSOR_RECT_0_CMD);
+ *b++ = (0);
+ *b++ = (0);
+ *b++ = (_3DSTATE_DEPTH_SUBRECT_DISABLE);
+ *b++ = (_3DSTATE_LOAD_INDIRECT | 0); /* disable indirect state */
+ *b++ = (0);
+ *b++ = (_3DSTATE_STIPPLE);
+ *b++ = (0x00000000);
+ *b++ = (_3DSTATE_BACKFACE_STENCIL_OPS | BFO_ENABLE_STENCIL_TWO_SIDE | 0);
+
+ /* samler state */
+#define TEX_COUNT 1
+ *b++ = (_3DSTATE_MAP_STATE | (3 * TEX_COUNT));
+ *b++ = ((1 << TEX_COUNT) - 1);
+ *b = fill_reloc(r++, b-batch, src, I915_GEM_DOMAIN_SAMPLER, 0); b++;
+ *b++ = (MAPSURF_32BIT | MT_32BIT_ARGB8888 |
+ (HEIGHT - 1) << MS3_HEIGHT_SHIFT |
+ (WIDTH - 1) << MS3_WIDTH_SHIFT);
+ *b++ = ((WIDTH-1) << MS4_PITCH_SHIFT);
+
+ *b++ = (_3DSTATE_SAMPLER_STATE | (3 * TEX_COUNT));
+ *b++ = ((1 << TEX_COUNT) - 1);
+ *b++ = (MIPFILTER_NONE << SS2_MIP_FILTER_SHIFT |
+ FILTER_NEAREST << SS2_MAG_FILTER_SHIFT |
+ FILTER_NEAREST << SS2_MIN_FILTER_SHIFT);
+ *b++ = (TEXCOORDMODE_WRAP << SS3_TCX_ADDR_MODE_SHIFT |
+ TEXCOORDMODE_WRAP << SS3_TCY_ADDR_MODE_SHIFT |
+ 0 << SS3_TEXTUREMAP_INDEX_SHIFT);
+ *b++ = (0x00000000);
+
+ /* render target state */
+ *b++ = (_3DSTATE_BUF_INFO_CMD);
+ *b++ = (BUF_3D_ID_COLOR_BACK | WIDTH*4);
+ *b = fill_reloc(r++, b-batch, dst,
+ I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER);
+ b++;
+
+ *b++ = (_3DSTATE_DST_BUF_VARS_CMD);
+ *b++ = (COLR_BUF_ARGB8888 |
+ DSTORG_HORT_BIAS(0x8) |
+ DSTORG_VERT_BIAS(0x8));
+
+ /* draw rect is unconditional */
+ *b++ = (_3DSTATE_DRAW_RECT_CMD);
+ *b++ = (0x00000000);
+ *b++ = (0x00000000); /* ymin, xmin */
+ *b++ = (DRAW_YMAX(HEIGHT - 1) |
+ DRAW_XMAX(WIDTH - 1));
+ /* yorig, xorig (relate to color buffer?) */
+ *b++ = (0x00000000);
+
+ /* texfmt */
+ *b++ = (_3DSTATE_LOAD_STATE_IMMEDIATE_1 | I1_LOAD_S(1) | I1_LOAD_S(2) | I1_LOAD_S(6) | 2);
+ *b++ = ((4 << S1_VERTEX_WIDTH_SHIFT) | (4 << S1_VERTEX_PITCH_SHIFT));
+ *b++ = (~S2_TEXCOORD_FMT(0, TEXCOORDFMT_NOT_PRESENT) |
+ S2_TEXCOORD_FMT(0, TEXCOORDFMT_2D));
+ *b++ = (S6_CBUF_BLEND_ENABLE | S6_COLOR_WRITE_ENABLE |
+ BLENDFUNC_ADD << S6_CBUF_BLEND_FUNC_SHIFT |
+ BLENDFACT_ONE << S6_CBUF_SRC_BLEND_FACT_SHIFT |
+ BLENDFACT_ZERO << S6_CBUF_DST_BLEND_FACT_SHIFT);
+
+ /* pixel shader */
+ *b++ = (_3DSTATE_PIXEL_SHADER_PROGRAM | (1 + 3*3 - 2));
+ /* decl FS_T0 */
+ *b++ = (D0_DCL |
+ REG_TYPE(FS_T0) << D0_TYPE_SHIFT |
+ REG_NR(FS_T0) << D0_NR_SHIFT |
+ ((REG_TYPE(FS_T0) != REG_TYPE_S) ? D0_CHANNEL_ALL : 0));
+ *b++ = (0);
+ *b++ = (0);
+ /* decl FS_S0 */
+ *b++ = (D0_DCL |
+ (REG_TYPE(FS_S0) << D0_TYPE_SHIFT) |
+ (REG_NR(FS_S0) << D0_NR_SHIFT) |
+ ((REG_TYPE(FS_S0) != REG_TYPE_S) ? D0_CHANNEL_ALL : 0));
+ *b++ = (0);
+ *b++ = (0);
+ /* texld(FS_OC, FS_S0, FS_T0 */
+ *b++ = (T0_TEXLD |
+ (REG_TYPE(FS_OC) << T0_DEST_TYPE_SHIFT) |
+ (REG_NR(FS_OC) << T0_DEST_NR_SHIFT) |
+ (REG_NR(FS_S0) << T0_SAMPLER_NR_SHIFT));
+ *b++ = ((REG_TYPE(FS_T0) << T1_ADDRESS_REG_TYPE_SHIFT) |
+ (REG_NR(FS_T0) << T1_ADDRESS_REG_NR_SHIFT));
+ *b++ = (0);
+
+ *b++ = (PRIM3D_RECTLIST | (3*4 - 1));
+ *b++ = pack_float(WIDTH);
+ *b++ = pack_float(HEIGHT);
+ *b++ = pack_float(WIDTH);
+ *b++ = pack_float(HEIGHT);
+
+ *b++ = pack_float(0);
+ *b++ = pack_float(HEIGHT);
+ *b++ = pack_float(0);
+ *b++ = pack_float(HEIGHT);
+
+ *b++ = pack_float(0);
+ *b++ = pack_float(0);
+ *b++ = pack_float(0);
+ *b++ = pack_float(0);
+
+ *b++ = MI_BATCH_BUFFER_END;
+ if ((b - batch) & 1)
+ *b++ = 0;
+
+ assert(b - batch <= 1024);
+ handle = gem_create(fd, 4096);
+ gem_write(fd, handle, 0, (b-batch)*sizeof(batch[0]), batch);
+
+ assert(r-reloc == 2);
+
+ obj[0].handle = dst;
+ obj[0].relocation_count = 0;
+ obj[0].relocs_ptr = 0;
+ obj[0].alignment = 0;
+ obj[0].offset = 0;
+ obj[0].flags = 0;
+ obj[0].rsvd1 = 0;
+ obj[0].rsvd2 = 0;
+
+ obj[1].handle = src;
+ obj[1].relocation_count = 0;
+ obj[1].relocs_ptr = 0;
+ obj[1].alignment = 0;
+ obj[1].offset = 0;
+ obj[1].flags = 0;
+ obj[1].rsvd1 = 0;
+ obj[1].rsvd2 = 0;
+
+ obj[2].handle = handle;
+ obj[2].relocation_count = 2;
+ obj[2].relocs_ptr = (uintptr_t)reloc;
+ obj[2].alignment = 0;
+ obj[2].offset = 0;
+ obj[2].flags = 0;
+ obj[2].rsvd1 = obj[2].rsvd2 = 0;
+
+ exec.buffers_ptr = (uintptr_t)obj;
+ exec.buffer_count = 3;
+ exec.batch_start_offset = 0;
+ exec.batch_len = (b-batch)*sizeof(batch[0]);
+ exec.DR1 = exec.DR4 = 0;
+ exec.num_cliprects = 0;
+ exec.cliprects_ptr = 0;
+ exec.flags = 0;
+ exec.rsvd1 = exec.rsvd2 = 0;
+
+ ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &exec);
+ while (ret && errno == EBUSY) {
+ drmCommandNone(fd, DRM_I915_GEM_THROTTLE);
+ ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &exec);
+ }
+ assert(ret == 0);
+
+ gem_close(fd, handle);
+}
+
+static uint32_t
+create_bo(int fd, uint32_t val)
+{
+ uint32_t handle;
+ int i;
+
+ handle = gem_create(fd, sizeof(linear));
+
+ /* Fill the BO with dwords starting at val */
+ for (i = 0; i < WIDTH*HEIGHT; i++)
+ linear[i] = val++;
+ gem_write(fd, handle, 0, sizeof(linear), linear);
+
+ return handle;
+}
+
+static void
+check_bo(int fd, uint32_t handle, uint32_t val)
+{
+ int i;
+
+ gem_read(fd, handle, 0, sizeof(linear), linear);
+ for (i = 0; i < WIDTH*HEIGHT; i++) {
+ if (linear[i] != val) {
+ fprintf(stderr, "Expected 0x%08x, found 0x%08x "
+ "at offset 0x%08x\n",
+ val, linear[i], i * 4);
+ abort();
+ }
+ val++;
+ }
+}
+
+int main(int argc, char **argv)
+{
+ uint32_t *handle, *start_val;
+ uint32_t start = 0;
+ int i, fd, count;
+
+ fd = drm_open_any();
+
+ count = 0;
+ if (argc > 1)
+ count = atoi(argv[1]);
+ if (count == 0)
+ count = 3 * gem_aperture_size(fd) / (1024*1024) / 2;
+ printf("Using %d 1MiB buffers\n", count);
+
+ handle = malloc(sizeof(uint32_t)*count*2);
+ start_val = handle + count;
+
+ for (i = 0; i < count; i++) {
+ handle[i] = create_bo(fd, start);
+ start_val[i] = start;
+ start += 1024 * 1024 / 4;
+ }
+
+ printf("Verifying initialisation...\n");
+ for (i = 0; i < count; i++)
+ check_bo(fd, handle[i], start_val[i]);
+
+ printf("Cyclic blits, forward...\n");
+ for (i = 0; i < count * 4; i++) {
+ int src = i % count;
+ int dst = (i + 1) % count;
+
+ copy(fd, handle[dst], handle[src]);
+ start_val[dst] = start_val[src];
+ }
+ for (i = 0; i < count; i++)
+ check_bo(fd, handle[i], start_val[i]);
+
+ printf("Cyclic blits, backward...\n");
+ for (i = 0; i < count * 4; i++) {
+ int src = (i + 1) % count;
+ int dst = i % count;
+
+ copy(fd, handle[dst], handle[src]);
+ start_val[dst] = start_val[src];
+ }
+ for (i = 0; i < count; i++)
+ check_bo(fd, handle[i], start_val[i]);
+
+ printf("Random blits...\n");
+ for (i = 0; i < count * 4; i++) {
+ int src = random() % count;
+ int dst = random() % count;
+
+ if (src == dst)
+ continue;
+
+ copy(fd, handle[dst], handle[src]);
+ start_val[dst] = start_val[src];
+ }
+ for (i = 0; i < count; i++)
+ check_bo(fd, handle[i], start_val[i]);
+
+ return 0;
+}