diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_types.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.c | 29 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.h | 1 |
3 files changed, 30 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 17fc21f6ae36..e0ec21266047 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1358,6 +1358,8 @@ struct intel_crtc { /* armed event for async flip */ struct drm_pending_vblank_event *flip_done_event; + /* armed event for DSB based updates */ + struct drm_pending_vblank_event *dsb_event; /* Access to these should be protected by dev_priv->irq_lock. */ bool cpu_fifo_underrun_disabled; diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index 1a574c9300b1..8514d7219140 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -4,6 +4,8 @@ * */ +#include <drm/drm_vblank.h> + #include "i915_drv.h" #include "i915_irq.h" #include "i915_reg.h" @@ -379,6 +381,12 @@ void intel_dsb_nonpost_end(struct intel_dsb *dsb) intel_dsb_noop(dsb, 4); } +void intel_dsb_interrupt(struct intel_dsb *dsb) +{ + intel_dsb_emit(dsb, 0, + DSB_OPCODE_INTERRUPT << DSB_OPCODE_SHIFT); +} + static void intel_dsb_emit_wait_dsl(struct intel_dsb *dsb, u32 opcode, int lower, int upper) { @@ -544,7 +552,7 @@ static void _intel_dsb_chain(struct intel_atomic_state *state, intel_dsb_reg_write(dsb, DSB_INTERRUPT(pipe, chained_dsb->id), dsb_error_int_status(display) | DSB_PROG_INT_STATUS | - dsb_error_int_en(display)); + dsb_error_int_en(display) | DSB_PROG_INT_EN); if (ctrl & DSB_WAIT_FOR_VBLANK) { int dewake_scanline = dsb_dewake_scanline_start(state, crtc); @@ -612,7 +620,7 @@ static void _intel_dsb_commit(struct intel_dsb *dsb, u32 ctrl, intel_de_write_fw(display, DSB_INTERRUPT(pipe, dsb->id), dsb_error_int_status(display) | DSB_PROG_INT_STATUS | - dsb_error_int_en(display)); + dsb_error_int_en(display) | DSB_PROG_INT_EN); intel_de_write_fw(display, DSB_HEAD(pipe, dsb->id), intel_dsb_buffer_ggtt_offset(&dsb->dsb_buf)); @@ -779,6 +787,23 @@ void intel_dsb_irq_handler(struct intel_display *display, tmp = intel_de_read_fw(display, DSB_INTERRUPT(pipe, dsb_id)); intel_de_write_fw(display, DSB_INTERRUPT(pipe, dsb_id), tmp); + if (tmp & DSB_PROG_INT_STATUS) { + spin_lock(&display->drm->event_lock); + + if (crtc->dsb_event) { + /* + * Update vblank counter/timestmap in case it + * hasn't been done yet for this frame. + */ + drm_crtc_accurate_vblank_count(&crtc->base); + + drm_crtc_send_vblank_event(&crtc->base, crtc->dsb_event); + crtc->dsb_event = NULL; + } + + spin_unlock(&display->drm->event_lock); + } + errors = tmp & dsb_error_int_status(display); if (errors) drm_err(display->drm, "[CRTC:%d:%s] DSB %d error interrupt: 0x%x\n", diff --git a/drivers/gpu/drm/i915/display/intel_dsb.h b/drivers/gpu/drm/i915/display/intel_dsb.h index c352c12aa59f..ff3b89dfffc1 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.h +++ b/drivers/gpu/drm/i915/display/intel_dsb.h @@ -39,6 +39,7 @@ void intel_dsb_reg_write_masked(struct intel_dsb *dsb, void intel_dsb_noop(struct intel_dsb *dsb, int count); void intel_dsb_nonpost_start(struct intel_dsb *dsb); void intel_dsb_nonpost_end(struct intel_dsb *dsb); +void intel_dsb_interrupt(struct intel_dsb *dsb); void intel_dsb_wait_scanline_in(struct intel_atomic_state *state, struct intel_dsb *dsb, int lower, int upper); |