From: Ville Syrjälä ville.syrjala@linux.intel.com
Another vblank series with the following features: - Plug a race between drm_vblank_off() and marking the crtc inactive - Don't send zeroed vblank evens to userspace at drm_vblank_off() - Have the user visible vblank counter account the entire time when the crtc was active, regardless of how long vblank interrupts were enabled - Avoid random jumps in the user visible vblank counter if the hardware counter gets reset - Allow disabling vblank interrupts immediately at drm_vblank_put() - Some polish via coccinelle
While setting drm_vblank_offdelay to 0 is now possible, I'm not sure if we should set it 0 automatically in the i915 driver. If there are multiple GPUs in the system that setting will affect them all, which might have bad consequences if the other GPU doesn't have a hardware frame counter, or if it's just buggy. So perhaps we should move that option to be per-driver?
Ville Syrjälä (9): drm: Always reject drm_vblank_get() after drm_vblank_off() drm/i915: Warn if drm_vblank_get() still works after drm_vblank_off() drm: Don't clear vblank timestamps when vblank interrupt is disabled drm: Move drm_update_vblank_count() drm: Have the vblank counter account for the time between vblank irq disable and drm_vblank_off() drm: Avoid random vblank counter jumps if the hardware counter has been reset drm: Disable vblank interrupt immediately when drm_vblank_offdelay==0 drm: Reduce the amount of dev->vblank[crtc] in the code drm/i915: Leave interrupts enabled while disabling crtcs during suspend
Documentation/DocBook/drm.tmpl | 1 + drivers/gpu/drm/drm_irq.c | 285 +++++++++++++++++++------------- drivers/gpu/drm/drm_stub.c | 4 +- drivers/gpu/drm/exynos/exynos_drm_drv.h | 2 +- drivers/gpu/drm/i915/i915_drv.c | 3 +- drivers/gpu/drm/i915/intel_display.c | 15 ++ include/drm/drmP.h | 2 +- 7 files changed, 192 insertions(+), 120 deletions(-)