diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_crtc.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_fifo_underrun.c | 20 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_fifo_underrun.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_modeset_setup.c | 24 |
4 files changed, 32 insertions, 18 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c index 82be0fbe9934..b79a8834559f 100644 --- a/drivers/gpu/drm/i915/display/intel_crtc.c +++ b/drivers/gpu/drm/i915/display/intel_crtc.c @@ -25,6 +25,7 @@ #include "intel_display_types.h" #include "intel_drrs.h" #include "intel_dsi.h" +#include "intel_fifo_underrun.h" #include "intel_pipe_crc.h" #include "intel_psr.h" #include "intel_sprite.h" @@ -314,6 +315,8 @@ int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe) } crtc->plane_ids_mask |= BIT(primary->id); + intel_init_fifo_underrun_reporting(dev_priv, crtc, false); + for_each_sprite(dev_priv, pipe, sprite) { struct intel_plane *plane; diff --git a/drivers/gpu/drm/i915/display/intel_fifo_underrun.c b/drivers/gpu/drm/i915/display/intel_fifo_underrun.c index d636d21fa9ce..b708a62e509a 100644 --- a/drivers/gpu/drm/i915/display/intel_fifo_underrun.c +++ b/drivers/gpu/drm/i915/display/intel_fifo_underrun.c @@ -31,6 +31,7 @@ #include "intel_display_types.h" #include "intel_fbc.h" #include "intel_fifo_underrun.h" +#include "intel_pch_display.h" /** * DOC: fifo underrun handling @@ -509,3 +510,22 @@ void intel_check_pch_fifo_underruns(struct drm_i915_private *dev_priv) spin_unlock_irq(&dev_priv->irq_lock); } + +void intel_init_fifo_underrun_reporting(struct drm_i915_private *i915, + struct intel_crtc *crtc, + bool enable) +{ + crtc->cpu_fifo_underrun_disabled = !enable; + + /* + * We track the PCH trancoder underrun reporting state + * within the crtc. With crtc for pipe A housing the underrun + * reporting state for PCH transcoder A, crtc for pipe B housing + * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A, + * and marking underrun reporting as disabled for the non-existing + * PCH transcoders B and C would prevent enabling the south + * error interrupt (see cpt_can_enable_serr_int()). + */ + if (intel_has_pch_trancoder(i915, crtc->pipe)) + crtc->pch_fifo_underrun_disabled = !enable; +} diff --git a/drivers/gpu/drm/i915/display/intel_fifo_underrun.h b/drivers/gpu/drm/i915/display/intel_fifo_underrun.h index 2e47d7d3c101..b00d8abebcf9 100644 --- a/drivers/gpu/drm/i915/display/intel_fifo_underrun.h +++ b/drivers/gpu/drm/i915/display/intel_fifo_underrun.h @@ -9,8 +9,11 @@ #include <linux/types.h> struct drm_i915_private; +struct intel_crtc; enum pipe; +void intel_init_fifo_underrun_reporting(struct drm_i915_private *i915, + struct intel_crtc *crtc, bool enable); bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv, enum pipe pipe, bool enable); bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv, diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c index 2d3c42ad597a..60f71e6f0491 100644 --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c @@ -22,6 +22,7 @@ #include "intel_display.h" #include "intel_display_power.h" #include "intel_display_types.h" +#include "intel_fifo_underrun.h" #include "intel_modeset_setup.h" #include "intel_pch_display.h" #include "intel_pm.h" @@ -236,12 +237,9 @@ static void intel_sanitize_fifo_underrun_reporting(const struct intel_crtc_state struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *i915 = to_i915(crtc->base.dev); - if (!crtc_state->hw.active && !HAS_GMCH(i915)) - return; - /* - * We start out with underrun reporting disabled to avoid races. - * For correct bookkeeping mark this on active crtcs. + * We start out with underrun reporting disabled on active + * pipes to avoid races. * * Also on gmch platforms we dont have any hardware bits to * disable the underrun reporting. Which means we need to start @@ -252,19 +250,9 @@ static void intel_sanitize_fifo_underrun_reporting(const struct intel_crtc_state * No protection against concurrent access is required - at * worst a fifo underrun happens which also sets this to false. */ - crtc->cpu_fifo_underrun_disabled = true; - - /* - * We track the PCH trancoder underrun reporting state - * within the crtc. With crtc for pipe A housing the underrun - * reporting state for PCH transcoder A, crtc for pipe B housing - * it for PCH transcoder B, etc. LPT-H has only PCH transcoder A, - * and marking underrun reporting as disabled for the non-existing - * PCH transcoders B and C would prevent enabling the south - * error interrupt (see cpt_can_enable_serr_int()). - */ - if (intel_has_pch_trancoder(i915, crtc->pipe)) - crtc->pch_fifo_underrun_disabled = true; + intel_init_fifo_underrun_reporting(i915, crtc, + !crtc_state->hw.active && + !HAS_GMCH(i915)); } static void intel_sanitize_crtc(struct intel_crtc *crtc, |