/* * Copyright © 2014 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 "igt.h" #include #include #include #include #include IGT_TEST_DESCRIPTION( "Use the display CRC support to validate pwrite to an already uncached future scanout buffer."); typedef struct { int drm_fd; igt_display_t display; struct igt_fb fb[2]; igt_output_t *output; igt_plane_t *primary; enum pipe pipe; igt_crc_t ref_crc; igt_pipe_crc_t *pipe_crc; uint32_t devid; } data_t; static void test(data_t *data) { igt_output_t *output = data->output; struct igt_fb *fb = &data->fb[1]; drmModeModeInfo *mode; uint32_t caching; void *buf; igt_crc_t crc; mode = igt_output_get_mode(output); /* create a non-white fb where we can pwrite later */ igt_create_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay, DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, fb); /* flip to it to make it UC/WC and fully flushed */ drmModeSetPlane(data->drm_fd, data->primary->drm_plane->plane_id, output->config.crtc->crtc_id, fb->fb_id, 0, 0, 0, fb->width, fb->height, 0, 0, fb->width << 16, fb->height << 16); /* flip back the original white buffer */ drmModeSetPlane(data->drm_fd, data->primary->drm_plane->plane_id, output->config.crtc->crtc_id, data->fb[0].fb_id, 0, 0, 0, fb->width, fb->height, 0, 0, fb->width << 16, fb->height << 16); /* make sure caching mode has become UC/WT */ caching = gem_get_caching(data->drm_fd, fb->gem_handle); igt_assert(caching == I915_CACHING_NONE || caching == I915_CACHING_DISPLAY); /* use pwrite to make the other fb all white too */ buf = malloc(fb->size); igt_assert(buf != NULL); memset(buf, 0xff, fb->size); gem_write(data->drm_fd, fb->gem_handle, 0, buf, fb->size); free(buf); /* and flip to it */ drmModeSetPlane(data->drm_fd, data->primary->drm_plane->plane_id, output->config.crtc->crtc_id, fb->fb_id, 0, 0, 0, fb->width, fb->height, 0, 0, fb->width << 16, fb->height << 16); /* check that the crc is as expected, which requires that caches got flushed */ igt_pipe_crc_collect_crc(data->pipe_crc, &crc); igt_assert_crc_equal(&crc, &data->ref_crc); } static void prepare_crtc(data_t *data) { igt_display_t *display = &data->display; igt_output_t *output = data->output; drmModeModeInfo *mode; /* select the pipe we want to use */ igt_output_set_pipe(output, data->pipe); mode = igt_output_get_mode(output); /* create a white reference fb and flip to it */ igt_create_color_fb(data->drm_fd, mode->hdisplay, mode->vdisplay, DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, 1.0, 1.0, 1.0, &data->fb[0]); data->primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY); igt_plane_set_fb(data->primary, &data->fb[0]); igt_display_commit(display); if (data->pipe_crc) igt_pipe_crc_free(data->pipe_crc); data->pipe_crc = igt_pipe_crc_new(data->drm_fd, data->pipe, INTEL_PIPE_CRC_SOURCE_AUTO); /* get reference crc for the white fb */ igt_pipe_crc_collect_crc(data->pipe_crc, &data->ref_crc); } static void cleanup_crtc(data_t *data) { igt_display_t *display = &data->display; igt_output_t *output = data->output; igt_pipe_crc_free(data->pipe_crc); data->pipe_crc = NULL; igt_plane_set_fb(data->primary, NULL); igt_output_set_pipe(output, PIPE_ANY); igt_display_commit(display); igt_remove_fb(data->drm_fd, &data->fb[0]); igt_remove_fb(data->drm_fd, &data->fb[1]); } static void run_test(data_t *data) { igt_display_t *display = &data->display; igt_output_t *output; enum pipe pipe; for_each_pipe_with_valid_output(display, pipe, output) { data->output = output; data->pipe = pipe; prepare_crtc(data); test(data); cleanup_crtc(data); /* once is enough */ return; } igt_skip("no valid crtc/connector combinations found\n"); } static data_t data; igt_simple_main { igt_skip_on_simulation(); data.drm_fd = drm_open_driver_master(DRIVER_INTEL); data.devid = intel_get_drm_devid(data.drm_fd); kmstest_set_vt_graphics_mode(); igt_require_pipe_crc(data.drm_fd); igt_display_require(&data.display, data.drm_fd); run_test(&data); igt_display_fini(&data.display); }