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drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2) 

Everything is evicted from VRAM before suspend, so we need to make
sure all BOs are unpinned and re-pinned after resume. Fixes broken
mouse cursor after resume introduced by commit b9729b17.

[Michel Dänzer: Add pinning BOs on resume]

v2:
[Alex Deucher: merge cursor unpin into fb unpin loop]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100541
Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com> (v1)
Signed-off-by: Grigori Goronzy <greg@chown.ath.cx>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Grigori Goronzy 2015-07-07 16:27:29 +09:00 committed by Alex Deucher
parent cd404af0c9
commit f3cbb17bcf
1 changed files with 33 additions and 1 deletions
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34
drivers/gpu/drm/radeon/radeon_device.c
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@ -1578,11 +1578,21 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon)
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
}
/* unpin the front buffers */
/* unpin the front buffers and cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->primary->fb);
struct radeon_bo *robj;
if (radeon_crtc->cursor_bo) {
struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
r = radeon_bo_reserve(robj, false);
if (r == 0) {
radeon_bo_unpin(robj);
radeon_bo_unreserve(robj);
}
}
if (rfb == NULL || rfb->obj == NULL) {
continue;
}
@ -1645,6 +1655,7 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
{
struct drm_connector *connector;
struct radeon_device *rdev = dev->dev_private;
struct drm_crtc *crtc;
int r;
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
@ -1684,6 +1695,27 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
radeon_restore_bios_scratch_regs(rdev);
/* pin cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
if (radeon_crtc->cursor_bo) {
struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
r = radeon_bo_reserve(robj, false);
if (r == 0) {
/* Only 27 bit offset for legacy cursor */
r = radeon_bo_pin_restricted(robj,
RADEON_GEM_DOMAIN_VRAM,
ASIC_IS_AVIVO(rdev) ?
0 : 1 << 27,
&radeon_crtc->cursor_addr);
if (r != 0)
DRM_ERROR("Failed to pin cursor BO (%d)\n", r);
radeon_bo_unreserve(robj);
}
}
}
/* init dig PHYs, disp eng pll */
if (rdev->is_atom_bios) {
radeon_atom_encoder_init(rdev);