forked from luck/tmp_suning_uos_patched
3b765c0b76
drm_vblank_count() has an u32 type returning what is a 64-bit vblank count.
The effect of this is when drm_wait_vblank_ioctl() tries to widen the user
space requested vblank sequence using this clipped 32-bit count(when the
value is >= 2^32) as reference, the requested sequence remains a 32-bit
value and gets queued like that. However, the code that checks if the
requested sequence has passed compares this against the 64-bit vblank
count.
With drm_vblank_count() returning all bits of the vblank count, update
drm_crtc_accurate_vblank_count() so that drm_crtc_arm_vblank_event() queues
the correct sequence. Otherwise, this leads to prolonged waits for a vblank
sequence when the current count is >=2^32.
Finally, fix drm_wait_one_vblank() too.
v2: Commit message fix (Keith)
Squash commits (Rodrigo)
Fixes:
|
||
|---|---|---|
| .. | ||
| bridge | ||
| i2c | ||
| tinydrm | ||
| ttm | ||
| amd_asic_type.h | ||
| ati_pcigart.h | ||
| drm_agpsupport.h | ||
| drm_atomic_helper.h | ||
| drm_atomic.h | ||
| drm_auth.h | ||
| drm_blend.h | ||
| drm_bridge.h | ||
| drm_cache.h | ||
| drm_color_mgmt.h | ||
| drm_connector.h | ||
| drm_crtc_helper.h | ||
| drm_crtc.h | ||
| drm_debugfs_crc.h | ||
| drm_debugfs.h | ||
| drm_device.h | ||
| drm_displayid.h | ||
| drm_dp_dual_mode_helper.h | ||
| drm_dp_helper.h | ||
| drm_dp_mst_helper.h | ||
| drm_drv.h | ||
| drm_edid.h | ||
| drm_encoder_slave.h | ||
| drm_encoder.h | ||
| drm_fb_cma_helper.h | ||
| drm_fb_helper.h | ||
| drm_file.h | ||
| drm_fixed.h | ||
| drm_flip_work.h | ||
| drm_fourcc.h | ||
| drm_framebuffer.h | ||
| drm_gem_cma_helper.h | ||
| drm_gem_framebuffer_helper.h | ||
| drm_gem.h | ||
| drm_global.h | ||
| drm_hashtab.h | ||
| drm_ioctl.h | ||
| drm_irq.h | ||
| drm_lease.h | ||
| drm_legacy.h | ||
| drm_mipi_dsi.h | ||
| drm_mm.h | ||
| drm_mode_config.h | ||
| drm_mode_object.h | ||
| drm_modes.h | ||
| drm_modeset_helper_vtables.h | ||
| drm_modeset_helper.h | ||
| drm_modeset_lock.h | ||
| drm_of.h | ||
| drm_os_linux.h | ||
| drm_panel.h | ||
| drm_pci.h | ||
| drm_pciids.h | ||
| drm_plane_helper.h | ||
| drm_plane.h | ||
| drm_prime.h | ||
| drm_print.h | ||
| drm_property.h | ||
| drm_rect.h | ||
| drm_scdc_helper.h | ||
| drm_simple_kms_helper.h | ||
| drm_syncobj.h | ||
| drm_sysfs.h | ||
| drm_utils.h | ||
| drm_vblank.h | ||
| drm_vma_manager.h | ||
| drmP.h | ||
| gma_drm.h | ||
| gpu_scheduler_trace.h | ||
| gpu_scheduler.h | ||
| i915_component.h | ||
| i915_drm.h | ||
| i915_pciids.h | ||
| intel_lpe_audio.h | ||
| intel-gtt.h | ||
| spsc_queue.h | ||