| Message ID | 20240318111216.3715694-1-mitulkumar.ajitkumar.golani@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | None | expand |
> -----Original Message----- > From: Intel-gfx <intel-gfx-bounces@lists.freedesktop.org> On Behalf Of Mitul > Golani > Sent: Monday, March 18, 2024 4:42 PM > To: intel-gfx@lists.freedesktop.org > Cc: Golani, Mitulkumar Ajitkumar <mitulkumar.ajitkumar.golani@intel.com> > Subject: [PATCH v19 8/9] drm/i915/display: Compute vrr_vsync params > > Compute vrr_vsync_start/end, which sets the position for hardware to send the > Vsync at a fixed position relative to the end of the Vblank. > > --v2: > - Updated VSYNC_START/END macros to VRR_VSYNC_START/END. (Ankit) > - Updated bit fields of VRR_VSYNC_START/END. (Ankit) > > --v3: > - Add PIPE_CONF_CHECK_I(vrr.vsync_start/end). > - Read/write vrr_vsync params only when we intend to send adaptive_sync sdp. > > --v4: > - Use VRR_SYNC_START/END macros correctly. > > --v5: > - Send AS SDP only when VRR is enabled. > Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com> Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com> Thanks and Regards, Arun R Murthy -------------------- > --- > drivers/gpu/drm/i915/display/intel_display.c | 2 ++ > .../drm/i915/display/intel_display_types.h | 1 + > drivers/gpu/drm/i915/display/intel_vrr.c | 33 +++++++++++++++++-- > drivers/gpu/drm/i915/i915_reg.h | 7 ++++ > 4 files changed, 41 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_display.c > b/drivers/gpu/drm/i915/display/intel_display.c > index 8f1d948408d3..fed4ed18d53b 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.c > +++ b/drivers/gpu/drm/i915/display/intel_display.c > @@ -5377,6 +5377,8 @@ intel_pipe_config_compare(const struct > intel_crtc_state *current_config, > PIPE_CONF_CHECK_I(vrr.flipline); > PIPE_CONF_CHECK_I(vrr.pipeline_full); > PIPE_CONF_CHECK_I(vrr.guardband); > + PIPE_CONF_CHECK_I(vrr.vsync_start); > + PIPE_CONF_CHECK_I(vrr.vsync_end); > } > > #undef PIPE_CONF_CHECK_X > diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h > b/drivers/gpu/drm/i915/display/intel_display_types.h > index 8a286751dc39..c2e08f641989 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_types.h > +++ b/drivers/gpu/drm/i915/display/intel_display_types.h > @@ -1430,6 +1430,7 @@ struct intel_crtc_state { > bool enable, in_range; > u8 pipeline_full; > u16 flipline, vmin, vmax, guardband; > + u32 vsync_end, vsync_start; > } vrr; > > /* Stream Splitter for eDP MSO */ > diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c > b/drivers/gpu/drm/i915/display/intel_vrr.c > index eb5bd0743902..1d53623e7e0b 100644 > --- a/drivers/gpu/drm/i915/display/intel_vrr.c > +++ b/drivers/gpu/drm/i915/display/intel_vrr.c > @@ -9,6 +9,7 @@ > #include "intel_de.h" > #include "intel_display_types.h" > #include "intel_vrr.h" > +#include "intel_dp.h" > > bool intel_vrr_is_capable(struct intel_connector *connector) { @@ -113,6 > +114,7 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, > struct drm_i915_private *i915 = to_i915(crtc->base.dev); > struct intel_connector *connector = > to_intel_connector(conn_state->connector); > + struct intel_dp *intel_dp = intel_attached_dp(connector); > struct drm_display_mode *adjusted_mode = &crtc_state- > >hw.adjusted_mode; > const struct drm_display_info *info = &connector->base.display_info; > int vmin, vmax; > @@ -165,6 +167,14 @@ intel_vrr_compute_config(struct intel_crtc_state > *crtc_state, > if (crtc_state->uapi.vrr_enabled) { > crtc_state->vrr.enable = true; > crtc_state->mode_flags |= I915_MODE_FLAG_VRR; > + if (intel_dp_as_sdp_supported(intel_dp)) { > + crtc_state->vrr.vsync_start = > + (crtc_state->hw.adjusted_mode.crtc_vtotal - > + crtc_state- > >hw.adjusted_mode.vsync_start); > + crtc_state->vrr.vsync_end = > + (crtc_state->hw.adjusted_mode.crtc_vtotal - > + crtc_state- > >hw.adjusted_mode.vsync_end); > + } > } > } > > @@ -242,6 +252,12 @@ void intel_vrr_enable(const struct intel_crtc_state > *crtc_state) > intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), > TRANS_PUSH_EN); > intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder), > VRR_CTL_VRR_ENABLE | trans_vrr_ctl(crtc_state)); > + > + if (HAS_AS_SDP(dev_priv)) { > + intel_de_write(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder), > + VRR_VSYNC_END(crtc_state->vrr.vsync_end) | > + VRR_VSYNC_START(crtc_state->vrr.vsync_start)); > + } > } > > void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state) @@ - > 258,13 +274,16 @@ void intel_vrr_disable(const struct intel_crtc_state > *old_crtc_state) > intel_de_wait_for_clear(dev_priv, > TRANS_VRR_STATUS(cpu_transcoder), > VRR_STATUS_VRR_EN_LIVE, 1000); > intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), 0); > + > + if (HAS_AS_SDP(dev_priv)) > + intel_de_write(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder), > 0); > } > > void intel_vrr_get_config(struct intel_crtc_state *crtc_state) { > struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc- > >dev); > enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; > - u32 trans_vrr_ctl; > + u32 trans_vrr_ctl, trans_vrr_vsync; > > trans_vrr_ctl = intel_de_read(dev_priv, > TRANS_VRR_CTL(cpu_transcoder)); > > @@ -284,6 +303,16 @@ void intel_vrr_get_config(struct intel_crtc_state > *crtc_state) > crtc_state->vrr.vmin = intel_de_read(dev_priv, > TRANS_VRR_VMIN(cpu_transcoder)) + 1; > } > > - if (crtc_state->vrr.enable) > + if (crtc_state->vrr.enable) { > crtc_state->mode_flags |= I915_MODE_FLAG_VRR; > + > + if (HAS_AS_SDP(dev_priv)) { > + trans_vrr_vsync = > + intel_de_read(dev_priv, > TRANS_VRR_VSYNC(cpu_transcoder)); > + crtc_state->vrr.vsync_start = > + REG_FIELD_GET(VRR_VSYNC_START_MASK, > trans_vrr_vsync); > + crtc_state->vrr.vsync_end = > + REG_FIELD_GET(VRR_VSYNC_END_MASK, > trans_vrr_vsync); > + } > + } > } > diff --git a/drivers/gpu/drm/i915/i915_reg.h > b/drivers/gpu/drm/i915/i915_reg.h index 3ff6a38826cb..2ede6982175c > 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -2095,6 +2095,13 @@ > #define TRANS_PUSH_EN REG_BIT(31) > #define TRANS_PUSH_SEND REG_BIT(30) > > +#define _TRANS_VRR_VSYNC_A 0x60078 > +#define TRANS_VRR_VSYNC(trans) _MMIO_TRANS2(trans, > _TRANS_VRR_VSYNC_A) > +#define VRR_VSYNC_END_MASK REG_GENMASK(28, 16) > +#define VRR_VSYNC_END(vsync_end) > REG_FIELD_PREP(VRR_VSYNC_END_MASK, (vsync_end)) > +#define VRR_VSYNC_START_MASK REG_GENMASK(12, 0) > +#define VRR_VSYNC_START(vsync_start) > REG_FIELD_PREP(VRR_VSYNC_START_MASK, (vsync_start)) > + > /* VGA port control */ > #define ADPA _MMIO(0x61100) > #define PCH_ADPA _MMIO(0xe1100) > -- > 2.25.1
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 8f1d948408d3..fed4ed18d53b 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -5377,6 +5377,8 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, PIPE_CONF_CHECK_I(vrr.flipline); PIPE_CONF_CHECK_I(vrr.pipeline_full); PIPE_CONF_CHECK_I(vrr.guardband); + PIPE_CONF_CHECK_I(vrr.vsync_start); + PIPE_CONF_CHECK_I(vrr.vsync_end); } #undef PIPE_CONF_CHECK_X diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 8a286751dc39..c2e08f641989 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1430,6 +1430,7 @@ struct intel_crtc_state { bool enable, in_range; u8 pipeline_full; u16 flipline, vmin, vmax, guardband; + u32 vsync_end, vsync_start; } vrr; /* Stream Splitter for eDP MSO */ diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index eb5bd0743902..1d53623e7e0b 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -9,6 +9,7 @@ #include "intel_de.h" #include "intel_display_types.h" #include "intel_vrr.h" +#include "intel_dp.h" bool intel_vrr_is_capable(struct intel_connector *connector) { @@ -113,6 +114,7 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, struct drm_i915_private *i915 = to_i915(crtc->base.dev); struct intel_connector *connector = to_intel_connector(conn_state->connector); + struct intel_dp *intel_dp = intel_attached_dp(connector); struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; const struct drm_display_info *info = &connector->base.display_info; int vmin, vmax; @@ -165,6 +167,14 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, if (crtc_state->uapi.vrr_enabled) { crtc_state->vrr.enable = true; crtc_state->mode_flags |= I915_MODE_FLAG_VRR; + if (intel_dp_as_sdp_supported(intel_dp)) { + crtc_state->vrr.vsync_start = + (crtc_state->hw.adjusted_mode.crtc_vtotal - + crtc_state->hw.adjusted_mode.vsync_start); + crtc_state->vrr.vsync_end = + (crtc_state->hw.adjusted_mode.crtc_vtotal - + crtc_state->hw.adjusted_mode.vsync_end); + } } } @@ -242,6 +252,12 @@ void intel_vrr_enable(const struct intel_crtc_state *crtc_state) intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), TRANS_PUSH_EN); intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder), VRR_CTL_VRR_ENABLE | trans_vrr_ctl(crtc_state)); + + if (HAS_AS_SDP(dev_priv)) { + intel_de_write(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder), + VRR_VSYNC_END(crtc_state->vrr.vsync_end) | + VRR_VSYNC_START(crtc_state->vrr.vsync_start)); + } } void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state) @@ -258,13 +274,16 @@ void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state) intel_de_wait_for_clear(dev_priv, TRANS_VRR_STATUS(cpu_transcoder), VRR_STATUS_VRR_EN_LIVE, 1000); intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), 0); + + if (HAS_AS_SDP(dev_priv)) + intel_de_write(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder), 0); } void intel_vrr_get_config(struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; - u32 trans_vrr_ctl; + u32 trans_vrr_ctl, trans_vrr_vsync; trans_vrr_ctl = intel_de_read(dev_priv, TRANS_VRR_CTL(cpu_transcoder)); @@ -284,6 +303,16 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state) crtc_state->vrr.vmin = intel_de_read(dev_priv, TRANS_VRR_VMIN(cpu_transcoder)) + 1; } - if (crtc_state->vrr.enable) + if (crtc_state->vrr.enable) { crtc_state->mode_flags |= I915_MODE_FLAG_VRR; + + if (HAS_AS_SDP(dev_priv)) { + trans_vrr_vsync = + intel_de_read(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder)); + crtc_state->vrr.vsync_start = + REG_FIELD_GET(VRR_VSYNC_START_MASK, trans_vrr_vsync); + crtc_state->vrr.vsync_end = + REG_FIELD_GET(VRR_VSYNC_END_MASK, trans_vrr_vsync); + } + } } diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 3ff6a38826cb..2ede6982175c 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2095,6 +2095,13 @@ #define TRANS_PUSH_EN REG_BIT(31) #define TRANS_PUSH_SEND REG_BIT(30) +#define _TRANS_VRR_VSYNC_A 0x60078 +#define TRANS_VRR_VSYNC(trans) _MMIO_TRANS2(trans, _TRANS_VRR_VSYNC_A) +#define VRR_VSYNC_END_MASK REG_GENMASK(28, 16) +#define VRR_VSYNC_END(vsync_end) REG_FIELD_PREP(VRR_VSYNC_END_MASK, (vsync_end)) +#define VRR_VSYNC_START_MASK REG_GENMASK(12, 0) +#define VRR_VSYNC_START(vsync_start) REG_FIELD_PREP(VRR_VSYNC_START_MASK, (vsync_start)) + /* VGA port control */ #define ADPA _MMIO(0x61100) #define PCH_ADPA _MMIO(0xe1100)
Compute vrr_vsync_start/end, which sets the position for hardware to send the Vsync at a fixed position relative to the end of the Vblank. --v2: - Updated VSYNC_START/END macros to VRR_VSYNC_START/END. (Ankit) - Updated bit fields of VRR_VSYNC_START/END. (Ankit) --v3: - Add PIPE_CONF_CHECK_I(vrr.vsync_start/end). - Read/write vrr_vsync params only when we intend to send adaptive_sync sdp. --v4: - Use VRR_SYNC_START/END macros correctly. --v5: - Send AS SDP only when VRR is enabled. Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com> --- drivers/gpu/drm/i915/display/intel_display.c | 2 ++ .../drm/i915/display/intel_display_types.h | 1 + drivers/gpu/drm/i915/display/intel_vrr.c | 33 +++++++++++++++++-- drivers/gpu/drm/i915/i915_reg.h | 7 ++++ 4 files changed, 41 insertions(+), 2 deletions(-)