[PATCH 2/3] tests/kms_psr_sink_crc: Create test to test PSR by checking panel CRC.

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v2: Wait psr enable with timeout and more subtest added.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
---
 tests/Android.mk         |   1 +
 tests/Makefile.sources   |   1 +
 tests/kms_psr_sink_crc.c | 508 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 510 insertions(+)
 create mode 100644 tests/kms_psr_sink_crc.c

diff --git a/tests/Android.mk b/tests/Android.mk
index fa9e9d7..81906be 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -95,6 +95,7 @@ skip_tests_list := \
     kms_cursor_crc \
     kms_flip \
     kms_pipe_crc_basic \
+    kms_psr_sink_crc \
     kms_fbc_crc \
     kms_render \
     kms_setmode \
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 5fe68ae..fdb1e41 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -58,6 +58,7 @@ TESTS_progs_M = \
 	kms_fbc_crc \
 	kms_flip \
 	kms_pipe_crc_basic \
+	kms_psr_sink_crc \
 	kms_render \
 	kms_setmode \
 	kms_sink_crc_basic \
diff --git a/tests/kms_psr_sink_crc.c b/tests/kms_psr_sink_crc.c
new file mode 100644
index 0000000..f9c650f
--- /dev/null
+++ b/tests/kms_psr_sink_crc.c
@@ -0,0 +1,508 @@
+/*
+ * Copyright © 2013 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.
+ *
+ */
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "drm_fourcc.h"
+
+#include "drmtest.h"
+#include "igt_debugfs.h"
+#include "igt_kms.h"
+#include "rendercopy.h"
+
+enum test_mode {
+	TEST_PAGE_FLIP,
+	TEST_MMAP_CPU,
+	TEST_MMAP_GTT,
+	TEST_BLT,
+	TEST_RENDER,
+	TEST_CONTEXT,
+	TEST_PAGE_FLIP_AND_MMAP_CPU,
+	TEST_PAGE_FLIP_AND_MMAP_GTT,
+	TEST_PAGE_FLIP_AND_BLT,
+	TEST_PAGE_FLIP_AND_RENDER,
+	TEST_PAGE_FLIP_AND_CONTEXT,
+	TEST_CURSOR_MOVE,
+};
+
+typedef struct {
+	struct kmstest_connector_config config;
+	drmModeModeInfo mode;
+	struct kmstest_fb fb[2];
+} connector_t;
+
+typedef struct {
+	int drm_fd;
+	igt_debugfs_t debugfs;
+	drmModeRes *resources;
+	drm_intel_bufmgr *bufmgr;
+	drm_intel_context *ctx[2];
+	uint32_t devid;
+	uint32_t handle[2];
+	uint32_t crtc_id;
+	uint32_t crtc_idx;
+	uint32_t fb_id[3];
+} data_t;
+
+static const char *test_mode_str(enum test_mode mode)
+{
+	static const char * const test_modes[] = {
+		[TEST_PAGE_FLIP] = "page_flip",
+		[TEST_MMAP_CPU] = "mmap_cpu",
+		[TEST_MMAP_GTT] = "mmap_gtt",
+		[TEST_BLT] = "blt",
+		[TEST_RENDER] = "render",
+		[TEST_CONTEXT] = "context",
+		[TEST_PAGE_FLIP_AND_MMAP_CPU] = "page_flip_and_mmap_cpu",
+		[TEST_PAGE_FLIP_AND_MMAP_GTT] = "page_flip_and_mmap_gtt",
+		[TEST_PAGE_FLIP_AND_BLT] = "page_flip_and_blt",
+		[TEST_PAGE_FLIP_AND_RENDER] = "page_flip_and_render",
+		[TEST_PAGE_FLIP_AND_CONTEXT] = "page_flip_and_context",
+		[TEST_CURSOR_MOVE] = "cursor_move",
+	};
+
+	return test_modes[mode];
+}
+
+static uint32_t create_fb(data_t *data,
+			  int w, int h,
+			  double r, double g, double b,
+			  struct kmstest_fb *fb)
+{
+	uint32_t fb_id;
+	cairo_t *cr;
+
+	fb_id = kmstest_create_fb2(data->drm_fd, w, h,
+				   DRM_FORMAT_XRGB8888, true, fb);
+	igt_assert(fb_id);
+
+	cr = kmstest_get_cairo_ctx(data->drm_fd, fb);
+	kmstest_paint_color(cr, 0, 0, w, h, r, g, b);
+	igt_assert(cairo_status(cr) == 0);
+	cairo_destroy(cr);
+
+	return fb_id;
+}
+
+static void create_cursor_fb(data_t *data, struct kmstest_fb *fb)
+{
+	cairo_t *cr;
+
+	data->fb_id[2] = kmstest_create_fb2(data->drm_fd, 64, 64,
+					    DRM_FORMAT_ARGB8888, false,
+					    fb);
+	igt_assert(data->fb_id[2]);
+
+	cr = kmstest_get_cairo_ctx(data->drm_fd, fb);
+	kmstest_paint_color_alpha(cr, 0, 0, 64, 64, 1.0, 1.0, 1.0, 1.0);
+	igt_assert(cairo_status(cr) == 0);
+}
+
+static bool
+connector_set_mode(data_t *data, connector_t *connector,
+		   drmModeModeInfo *mode, uint32_t fb_id)
+{
+	struct kmstest_connector_config *config = &connector->config;
+	int ret;
+
+#if 0
+	fprintf(stdout, "Using pipe %c, %dx%d\n", pipe_name(config->pipe),
+		mode->hdisplay, mode->vdisplay);
+#endif
+
+	ret = drmModeSetCrtc(data->drm_fd,
+			     config->crtc->crtc_id,
+			     fb_id,
+			     0, 0, /* x, y */
+			     &config->connector->connector_id,
+			     1,
+			     mode);
+	igt_assert(ret == 0);
+
+	return 0;
+}
+
+static void display_init(data_t *data)
+{
+	data->resources = drmModeGetResources(data->drm_fd);
+	igt_assert(data->resources);
+}
+
+static void display_fini(data_t *data)
+{
+	drmModeSetCursor(data->drm_fd, data->crtc_id, 0, 0, 0);
+	drmModeFreeResources(data->resources);
+}
+
+static void fill_blt(data_t *data, uint32_t handle, unsigned char color)
+{
+	drm_intel_bo *dst = gem_handle_to_libdrm_bo(data->bufmgr,
+						    data->drm_fd,
+						    "", handle);
+	struct intel_batchbuffer *batch;
+
+	batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
+	igt_assert(batch);
+
+	BEGIN_BATCH(5);
+	OUT_BATCH(COLOR_BLT_CMD);
+	OUT_BATCH((1 << 24) | (0xf0 << 16) | 0);
+	OUT_BATCH(1 << 16 | 4);
+	OUT_RELOC(dst, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
+	OUT_BATCH(color);
+	ADVANCE_BATCH();
+
+	intel_batchbuffer_flush(batch);
+	intel_batchbuffer_free(batch);
+
+	gem_bo_busy(data->drm_fd, handle);
+}
+
+static void scratch_buf_init(struct scratch_buf *buf, drm_intel_bo *bo)
+{
+	buf->bo = bo;
+	buf->stride = 4096;
+	buf->tiling = I915_TILING_X;
+	buf->size = 4096;
+}
+
+static void exec_nop(data_t *data, uint32_t handle, drm_intel_context *context)
+{
+	drm_intel_bo *dst;
+	struct intel_batchbuffer *batch;
+
+	dst = gem_handle_to_libdrm_bo(data->bufmgr, data->drm_fd, "", handle);
+	igt_assert(dst);
+
+	batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
+	igt_assert(batch);
+
+	/* add the reloc to make sure the kernel will think we write to dst */
+	BEGIN_BATCH(4);
+	OUT_BATCH(MI_BATCH_BUFFER_END);
+	OUT_BATCH(MI_NOOP);
+	OUT_RELOC(dst, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
+	OUT_BATCH(MI_NOOP);
+	ADVANCE_BATCH();
+
+	intel_batchbuffer_flush_with_context(batch, context);
+	intel_batchbuffer_free(batch);
+}
+
+static void fill_render(data_t *data, uint32_t handle,
+			drm_intel_context *context, unsigned char color)
+{
+	drm_intel_bo *src, *dst;
+	struct intel_batchbuffer *batch;
+	struct scratch_buf src_buf, dst_buf;
+	const uint8_t buf[4] = { color, color, color, color };
+	render_copyfunc_t rendercopy = get_render_copyfunc(data->devid);
+
+	igt_skip_on(!rendercopy);
+
+	dst = gem_handle_to_libdrm_bo(data->bufmgr, data->drm_fd, "", handle);
+	igt_assert(dst);
+
+	src = drm_intel_bo_alloc(data->bufmgr, "", 4096, 4096);
+	igt_assert(src);
+
+	gem_write(data->drm_fd, src->handle, 0, buf, 4);
+
+	scratch_buf_init(&src_buf, src);
+	scratch_buf_init(&dst_buf, dst);
+
+	batch = intel_batchbuffer_alloc(data->bufmgr, data->devid);
+	igt_assert(batch);
+
+	rendercopy(batch, context,
+		   &src_buf, 0, 0, 1, 1,
+		   &dst_buf, 0, 0);
+
+	intel_batchbuffer_free(batch);
+
+	gem_bo_busy(data->drm_fd, handle);
+}
+
+static bool psr_sink_support(data_t *data)
+{
+	int ret;
+	FILE *file;
+	char str[4];
+
+	file = igt_debugfs_fopen(&data->debugfs, "i915_edp_psr_status", "r");
+	igt_require(file);
+
+	ret = fscanf(file, "Sink_Support: %s\n", str);
+	if (ret == 0)
+	    igt_skip("i915_edp_psr_status format not supported by this test case\n");
+
+	fclose(file);
+	return strcmp(str, "yes") == 0;
+}
+
+static bool psr_enabled(data_t *data)
+{
+	int ret;
+	FILE *file;
+	char str[4];
+
+	file = igt_debugfs_fopen(&data->debugfs, "i915_edp_psr_status", "r");
+	igt_require(file);
+
+	ret = fscanf(file, "Sink_Support: %s\n", str);
+	igt_assert(ret != 0);
+
+	ret = fscanf(file, "Source_OK: %s\n", str);
+	igt_assert(ret != 0);
+
+	ret = fscanf(file, "Enabled: %s\n", str);
+	igt_assert(ret != 0);
+
+	fclose(file);
+	return strcmp(str, "yes") == 0;
+}
+
+static bool wait_psr_entry(data_t *data, int timeout)
+{
+	while (timeout--) {
+		if (psr_enabled(data))
+			return true;
+		sleep(1);
+	}
+	return false;
+}
+
+static void get_sink_crc(data_t *data, char *crc) {
+	int ret;
+	FILE *file;
+
+	file = igt_debugfs_fopen(&data->debugfs, "i915_sink_crc_eDP1", "r");
+	igt_require(file);
+
+	ret = fscanf(file, "%s\n", crc);
+	igt_require(ret > 0);
+
+	fclose(file);
+}
+
+static void test_crc(data_t *data, enum test_mode mode)
+{
+	uint32_t handle = data->handle[0];
+	char ref_crc[12];
+	char crc[12];
+
+	if (mode == TEST_CURSOR_MOVE) {
+		igt_assert(drmModeSetCursor(data->drm_fd, data->crtc_id,
+					    handle, 64, 64) == 0);
+		igt_assert(drmModeMoveCursor(data->drm_fd, data->crtc_id,
+					     1, 1) == 0);
+	}
+
+	usleep(300000);
+	igt_assert(wait_psr_entry(data, 10));
+	get_sink_crc(data, ref_crc);
+
+	switch (mode) {
+		void *ptr;
+	case TEST_PAGE_FLIP:
+		igt_assert(drmModePageFlip(data->drm_fd, data->crtc_id,
+					   data->fb_id[1], 0, NULL) == 0);
+		break;
+	case TEST_MMAP_CPU:
+	case TEST_PAGE_FLIP_AND_MMAP_CPU:
+		ptr = gem_mmap__cpu(data->drm_fd, handle, 4096, PROT_WRITE);
+		gem_set_domain(data->drm_fd, handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
+		memset(ptr, 0xff, 4);
+		munmap(ptr, 4096);
+		gem_sw_finish(data->drm_fd, handle);
+		break;
+	case TEST_PAGE_FLIP_AND_MMAP_GTT:
+		handle = data->handle[1];
+		igt_assert(drmModePageFlip(data->drm_fd, data->crtc_id,
+					   data->fb_id[1], 0, NULL) == 0);
+	case TEST_MMAP_GTT:
+		ptr = gem_mmap__gtt(data->drm_fd, handle, 4096, PROT_WRITE);
+		gem_set_domain(data->drm_fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
+		memset(ptr, 0xff, 4);
+		munmap(ptr, 4096);
+		break;
+	case TEST_BLT:
+	case TEST_PAGE_FLIP_AND_BLT:
+		fill_blt(data, handle, 0xff);
+		break;
+	case TEST_RENDER:
+	case TEST_CONTEXT:
+	case TEST_PAGE_FLIP_AND_RENDER:
+	case TEST_PAGE_FLIP_AND_CONTEXT:
+		fill_render(data, handle,
+			    (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) ?
+			    data->ctx[1] : NULL, 0xff);
+		break;
+	case TEST_CURSOR_MOVE:
+		igt_assert(drmModeMoveCursor(data->drm_fd, data->crtc_id, 1, 2) == 0);
+		break;
+	}
+
+	get_sink_crc(data, crc);
+	igt_assert(strcmp(ref_crc, crc) != 0);
+}
+
+static bool prepare_crtc(data_t *data, uint32_t connector_id, enum test_mode mode)
+{
+	connector_t connector;
+	int ret;
+
+	ret = kmstest_get_connector_config(data->drm_fd,
+					   connector_id,
+					   1 << data->crtc_idx,
+					   &connector.config);
+	if (ret)
+		return false;
+
+	data->fb_id[0] = create_fb(data,
+				   connector.config.default_mode.hdisplay,
+				   connector.config.default_mode.vdisplay,
+				   0.0, 0.0, 0.0, &connector.fb[0]);
+	igt_assert(data->fb_id[0]);
+
+	if (mode == TEST_CURSOR_MOVE)
+		create_cursor_fb(data, &connector.fb[0]);
+
+	data->fb_id[1] = create_fb(data,
+				   connector.config.default_mode.hdisplay,
+				   connector.config.default_mode.vdisplay,
+				   0.1, 0.1, 0.1, &connector.fb[1]);
+	igt_assert(data->fb_id[1]);
+
+	data->handle[0] = connector.fb[0].gem_handle;
+	data->handle[1] = connector.fb[1].gem_handle;
+
+	/* scanout = fb[1] */
+	connector_set_mode(data, &connector, &connector.config.default_mode,
+			   data->fb_id[1]);
+
+	if (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) {
+		data->ctx[0] = drm_intel_gem_context_create(data->bufmgr);
+		igt_require(data->ctx[0]);
+		data->ctx[1] = drm_intel_gem_context_create(data->bufmgr);
+		igt_require(data->ctx[1]);
+
+		/*
+		 * Disable FBC RT address for both contexts
+		 * (by "rendering" to a non-scanout buffer).
+		 */
+		exec_nop(data, data->handle[0], data->ctx[1]);
+		exec_nop(data, data->handle[0], data->ctx[0]);
+		exec_nop(data, data->handle[0], data->ctx[1]);
+		exec_nop(data, data->handle[0], data->ctx[0]);
+	}
+
+	/* scanout = fb[0] */
+	connector_set_mode(data, &connector, &connector.config.default_mode,
+			   data->fb_id[0]);
+
+	if (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) {
+		/*
+		 * make ctx[0] FBC RT address point to fb[0], ctx[1]
+		 * FBC RT address is left as disabled.
+		 */
+		exec_nop(data, connector.fb[0].gem_handle, data->ctx[0]);
+	}
+
+	kmstest_free_connector_config(&connector.config);
+
+	return true;
+}
+
+static void finish_crtc(data_t *data, enum test_mode mode)
+{
+	if (mode == TEST_CONTEXT || mode == TEST_PAGE_FLIP_AND_CONTEXT) {
+		drm_intel_gem_context_destroy(data->ctx[0]);
+		drm_intel_gem_context_destroy(data->ctx[1]);
+	}
+}
+
+static void run_test(data_t *data, enum test_mode mode)
+{
+	int i;
+	drmModeConnectorPtr c;
+
+	for (i = 0; i < data->resources->count_connectors; i++) {
+		uint32_t connector_id = data->resources->connectors[i];
+		c = drmModeGetConnector(data->drm_fd, connector_id);
+
+		if (c->connector_type != DRM_MODE_CONNECTOR_eDP ||
+		    c->connection != DRM_MODE_CONNECTED)
+			continue;
+
+		data->crtc_idx = 0;
+		data->crtc_id = data->resources->crtcs[0];
+
+		if (!prepare_crtc(data, connector_id, mode))
+			continue;
+
+		test_crc(data, mode);
+
+		finish_crtc(data, mode);
+	}
+}
+
+igt_main
+{
+	data_t data = {};
+	enum test_mode mode;
+
+	igt_skip_on_simulation();
+
+	igt_fixture {
+		data.drm_fd = drm_open_any();
+		igt_set_vt_graphics_mode();
+
+		data.devid = intel_get_drm_devid(data.drm_fd);
+
+		igt_debugfs_init(&data.debugfs);
+
+		igt_assert(psr_sink_support(&data));
+
+		data.bufmgr = drm_intel_bufmgr_gem_init(data.drm_fd, 4096);
+		igt_assert(data.bufmgr);
+		drm_intel_bufmgr_gem_enable_reuse(data.bufmgr);
+
+		display_init(&data);
+	}
+
+	for (mode = TEST_PAGE_FLIP; mode <= TEST_CURSOR_MOVE; mode++) {
+		igt_subtest_f("%s", test_mode_str(mode)) {
+			run_test(&data, mode);
+		}
+	}
+
+	igt_fixture {
+		drm_intel_bufmgr_destroy(data.bufmgr);
+		display_fini(&data);
+	}
+}
-- 
1.8.1.2

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