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drm/amdgpu: clean up non-DC suspend/resume handling

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Move the non-DC specific code into the DCE IP blocks similar
to how we handle DC.  This cleans up the common suspend
and resume pathes.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2021-03-19 16:34:45 -04:00
parent 48ccbf730c
commit a2e15b0e6c
8 changed files with 139 additions and 89 deletions
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89
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
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@@ -1354,3 +1354,92 @@ bool amdgpu_crtc_get_scanout_position(struct drm_crtc *crtc,
return amdgpu_display_get_crtc_scanoutpos(dev, pipe, 0, vpos, hpos,
stime, etime, mode);
}
int amdgpu_display_suspend_helper(struct amdgpu_device *adev)
{
struct drm_device *dev = adev_to_drm(adev);
struct drm_crtc *crtc;
struct drm_connector *connector;
struct drm_connector_list_iter iter;
int r;
/* turn off display hw */
drm_modeset_lock_all(dev);
drm_connector_list_iter_begin(dev, &iter);
drm_for_each_connector_iter(connector, &iter)
drm_helper_connector_dpms(connector,
DRM_MODE_DPMS_OFF);
drm_connector_list_iter_end(&iter);
drm_modeset_unlock_all(dev);
/* unpin the front buffers and cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
struct drm_framebuffer *fb = crtc->primary->fb;
struct amdgpu_bo *robj;
if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) {
struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
r = amdgpu_bo_reserve(aobj, true);
if (r == 0) {
amdgpu_bo_unpin(aobj);
amdgpu_bo_unreserve(aobj);
}
}
if (fb == NULL || fb->obj[0] == NULL) {
continue;
}
robj = gem_to_amdgpu_bo(fb->obj[0]);
/* don't unpin kernel fb objects */
if (!amdgpu_fbdev_robj_is_fb(adev, robj)) {
r = amdgpu_bo_reserve(robj, true);
if (r == 0) {
amdgpu_bo_unpin(robj);
amdgpu_bo_unreserve(robj);
}
}
}
return r;
}
int amdgpu_display_resume_helper(struct amdgpu_device *adev)
{
struct drm_device *dev = adev_to_drm(adev);
struct drm_connector *connector;
struct drm_connector_list_iter iter;
struct drm_crtc *crtc;
int r;
/* pin cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) {
struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
r = amdgpu_bo_reserve(aobj, true);
if (r == 0) {
r = amdgpu_bo_pin(aobj, AMDGPU_GEM_DOMAIN_VRAM);
if (r != 0)
dev_err(adev->dev, "Failed to pin cursor BO (%d)\n", r);
amdgpu_crtc->cursor_addr = amdgpu_bo_gpu_offset(aobj);
amdgpu_bo_unreserve(aobj);
}
}
}
drm_helper_resume_force_mode(dev);
/* turn on display hw */
drm_modeset_lock_all(dev);
drm_connector_list_iter_begin(dev, &iter);
drm_for_each_connector_iter(connector, &iter)
drm_helper_connector_dpms(connector,
DRM_MODE_DPMS_ON);
drm_connector_list_iter_end(&iter);
drm_modeset_unlock_all(dev);
return 0;
}