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151 lines
4.0 KiB
151 lines
4.0 KiB
/*
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* Copyright © 2016 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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*/
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#include "igt.h"
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#include <stdbool.h>
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IGT_TEST_DESCRIPTION("Make sure all modesets are rejected when the requested dotclock is too high");
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typedef struct {
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int drm_fd;
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igt_display_t display;
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igt_output_t *output;
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drmModeResPtr res;
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int max_dotclock;
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} data_t;
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static bool has_scaling_mode_prop(data_t *data)
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{
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return kmstest_get_property(data->drm_fd,
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data->output->id,
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DRM_MODE_OBJECT_CONNECTOR,
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"scaling mode",
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NULL, NULL, NULL);
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}
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static int
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test_output(data_t *data)
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{
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igt_output_t *output = data->output;
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drmModeModeInfo mode;
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struct igt_fb fb;
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int i;
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/*
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* FIXME When we have a fixed mode, the kernel will ignore
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* the user timings apart from hdisplay/vdisplay. Should
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* fix the kernel to at least make sure the requested
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* refresh rate as specified by the user timings will
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* roughly match the user will get. For now skip the
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* test on any connector with a fixed mode.
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*/
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if (has_scaling_mode_prop(data))
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return 0;
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/*
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* FIXME test every mode we have to be more
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* sure everything is really getting rejected?
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*/
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mode = *igt_output_get_mode(output);
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mode.clock = data->max_dotclock + 1;
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igt_create_fb(data->drm_fd,
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mode.hdisplay, mode.vdisplay,
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DRM_FORMAT_XRGB8888,
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LOCAL_DRM_FORMAT_MOD_NONE,
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&fb);
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for (i = 0; i < data->res->count_crtcs; i++) {
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int ret;
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igt_info("Checking pipe %c connector %s with mode %s\n",
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'A'+i, output->name, mode.name);
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ret = drmModeSetCrtc(data->drm_fd, data->res->crtcs[i],
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fb.fb_id, 0, 0,
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&output->id, 1, &mode);
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igt_assert_lt(ret, 0);
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}
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igt_remove_fb(data->drm_fd, &fb);
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return 1;
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}
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static void test(data_t *data)
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{
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int valid_connectors = 0;
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for_each_connected_output(&data->display, data->output) {
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valid_connectors += test_output(data);
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}
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igt_require_f(valid_connectors, "No suitable connectors found\n");
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}
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static int i915_max_dotclock(data_t *data)
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{
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char buf[4096];
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char *s;
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int max_dotclock = 0;
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igt_debugfs_read(data->drm_fd, "i915_frequency_info", buf);
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s = strstr(buf, "Max pixel clock frequency:");
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igt_assert(s);
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igt_assert_eq(sscanf(s, "Max pixel clock frequency: %d kHz", &max_dotclock), 1);
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/* 100 Mhz to 5 GHz seem like reasonable values to expect */
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igt_assert_lt(max_dotclock, 5000000);
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igt_assert_lt(100000, max_dotclock);
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return max_dotclock;
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}
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static data_t data;
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igt_simple_main
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{
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igt_skip_on_simulation();
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data.drm_fd = drm_open_driver_master(DRIVER_INTEL);
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igt_require_intel(data.drm_fd);
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kmstest_set_vt_graphics_mode();
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igt_display_require(&data.display, data.drm_fd);
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data.res = drmModeGetResources(data.drm_fd);
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igt_assert(data.res);
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kmstest_unset_all_crtcs(data.drm_fd, data.res);
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data.max_dotclock = i915_max_dotclock(&data);
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igt_info("Max dotclock: %d kHz\n", data.max_dotclock);
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test(&data);
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igt_display_fini(&data.display);
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igt_reset_connectors();
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drmModeFreeResources(data.res);
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}
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