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

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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);