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/*
* 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.
*
* Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
*
*/
#include "igt.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
static bool supports_lpsp(uint32_t devid)
{
return IS_HASWELL(devid) || IS_BROADWELL(devid);
}
static bool lpsp_is_enabled(int drm_fd)
{
uint32_t val;
val = INREG(HSW_PWR_WELL_CTL2);
return !(val & HSW_PWR_WELL_STATE_ENABLED);
}
/* The LPSP mode is all about an enabled pipe, but we expect to also be in the
* low power mode when no pipes are enabled, so do this check anyway. */
static void screens_disabled_subtest(int drm_fd, drmModeResPtr drm_res)
{
kmstest_unset_all_crtcs(drm_fd, drm_res);
igt_assert(lpsp_is_enabled(drm_fd));
}
static uint32_t create_fb(int drm_fd, int width, int height)
{
struct igt_fb fb;
return igt_create_pattern_fb(drm_fd, width, height, DRM_FORMAT_XRGB8888,
LOCAL_DRM_FORMAT_MOD_NONE, &fb);
}
static void edp_subtest(int drm_fd, drmModeResPtr drm_res,
drmModeConnectorPtr *drm_connectors, uint32_t devid,
bool use_panel_fitter)
{
int i, rc;
uint32_t crtc_id = 0, buffer_id = 0;
drmModeConnectorPtr connector = NULL;
drmModeModeInfoPtr mode = NULL;
drmModeModeInfo std_1024_mode = {
.clock = 65000,
.hdisplay = 1024,
.hsync_start = 1048,
.hsync_end = 1184,
.htotal = 1344,
.hskew = 0,
.vdisplay = 768,
.vsync_start = 771,
.vsync_end = 777,
.vtotal = 806,
.vscan = 0,
.vrefresh = 60,
.flags = 0xA,
.type = 0x40,
.name = "Custom 1024x768",
};
kmstest_unset_all_crtcs(drm_fd, drm_res);
for (i = 0; i < drm_res->count_connectors; i++) {
drmModeConnectorPtr c = drm_connectors[i];
if (c->connector_type != DRM_MODE_CONNECTOR_eDP)
continue;
if (c->connection != DRM_MODE_CONNECTED)
continue;
if (!use_panel_fitter && c->count_modes) {
connector = c;
mode = &c->modes[0];
break;
}
if (use_panel_fitter) {
connector = c;
/* This is one of the modes Xorg creates for panels, so
* it should work just fine. Notice that Gens that
* support LPSP are too new for panels with native
* 1024x768 resolution, so this should force the panel
* fitter. */
igt_assert(c->count_modes &&
c->modes[0].hdisplay > 1024);
igt_assert(c->count_modes &&
c->modes[0].vdisplay > 768);
mode = &std_1024_mode;
break;
}
}
igt_require(connector);
crtc_id = kmstest_find_crtc_for_connector(drm_fd, drm_res, connector,
0);
buffer_id = create_fb(drm_fd, mode->hdisplay, mode->vdisplay);
igt_assert(buffer_id);
igt_assert(connector);
igt_assert(mode);
rc = drmModeSetCrtc(drm_fd, crtc_id, buffer_id, 0, 0,
&connector->connector_id, 1, mode);
igt_assert_eq(rc, 0);
if (use_panel_fitter) {
if (IS_HASWELL(devid))
igt_assert(!lpsp_is_enabled(drm_fd));
else
igt_assert(lpsp_is_enabled(drm_fd));
} else {
igt_assert(lpsp_is_enabled(drm_fd));
}
}
static void non_edp_subtest(int drm_fd, drmModeResPtr drm_res,
drmModeConnectorPtr *drm_connectors)
{
int i, rc;
uint32_t crtc_id = 0, buffer_id = 0;
drmModeConnectorPtr connector = NULL;
drmModeModeInfoPtr mode = NULL;
kmstest_unset_all_crtcs(drm_fd, drm_res);
for (i = 0; i < drm_res->count_connectors; i++) {
drmModeConnectorPtr c = drm_connectors[i];
if (c->connector_type == DRM_MODE_CONNECTOR_eDP)
continue;
if (c->connection != DRM_MODE_CONNECTED)
continue;
if (c->count_modes) {
connector = c;
mode = &c->modes[0];
break;
}
}
igt_require(connector);
crtc_id = kmstest_find_crtc_for_connector(drm_fd, drm_res, connector,
0);
buffer_id = create_fb(drm_fd, mode->hdisplay, mode->vdisplay);
igt_assert(buffer_id);
igt_assert(mode);
rc = drmModeSetCrtc(drm_fd, crtc_id, buffer_id, 0, 0,
&connector->connector_id, 1, mode);
igt_assert_eq(rc, 0);
igt_assert(!lpsp_is_enabled(drm_fd));
}
#define MAX_CONNECTORS 32
int drm_fd;
uint32_t devid;
drmModeResPtr drm_res;
drmModeConnectorPtr drm_connectors[MAX_CONNECTORS];
igt_main
{
igt_fixture {
int i;
drm_fd = drm_open_driver_master(DRIVER_INTEL);
igt_require(drm_fd >= 0);
devid = intel_get_drm_devid(drm_fd);
drm_res = drmModeGetResources(drm_fd);
igt_assert(drm_res->count_connectors <= MAX_CONNECTORS);
for (i = 0; i < drm_res->count_connectors; i++)
drm_connectors[i] = drmModeGetConnectorCurrent(drm_fd,
drm_res->connectors[i]);
igt_pm_enable_audio_runtime_pm();
igt_require(supports_lpsp(devid));
intel_register_access_init(intel_get_pci_device(), 0);
kmstest_set_vt_graphics_mode();
}
igt_subtest("screens-disabled")
screens_disabled_subtest(drm_fd, drm_res);
igt_subtest("edp-native")
edp_subtest(drm_fd, drm_res, drm_connectors, devid, false);
igt_subtest("edp-panel-fitter")
edp_subtest(drm_fd, drm_res, drm_connectors, devid, true);
igt_subtest("non-edp")
non_edp_subtest(drm_fd, drm_res, drm_connectors);
igt_fixture {
int i;
intel_register_access_fini();
for (i = 0; i < drm_res->count_connectors; i++)
drmModeFreeConnector(drm_connectors[i]);
drmModeFreeResources(drm_res);
close(drm_fd);
}
}
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