From: Grigori Goronzy greg@chown.ath.cx
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]
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100541 Cc: stable@vger.kernel.org Signed-off-by: Grigori Goronzy greg@chown.ath.cx Signed-off-by: Michel Dänzer michel.daenzer@amd.com --- drivers/gpu/drm/radeon/radeon_device.c | 36 ++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 12a18c8..5a075a9 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1593,6 +1593,20 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon) drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); }
+ /* unpin 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) { + radeon_bo_unpin(robj); + radeon_bo_unreserve(robj); + } + } + } + /* unpin the front buffers */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->primary->fb); @@ -1660,6 +1674,7 @@ 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) @@ -1699,6 +1714,27 @@ 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);