From: Matt Roper <matthew.d.roper@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH v4 05/23] drm/i915/xelpd: Add VRR guardband for VRR CTL
Date: Fri, 14 May 2021 20:10:17 -0700 [thread overview]
Message-ID: <20210515031035.2561658-6-matthew.d.roper@intel.com> (raw)
In-Reply-To: <20210515031035.2561658-1-matthew.d.roper@intel.com>
From: Manasi Navare <manasi.d.navare@intel.com>
On XE_LPD, VRR CTL register adds a new VRR Guardband bitfield
replacing the pipeline full and deprecating the pipeline override
bit.
This patch adds this corresponding bitfield in the register defs,
crtc state vrr structure and populates this in vrr compute
config and vrr enable functions. It also adds the corresponding
HW state readout for this field.
Cc: Aditya Swarup <aditya.swarup@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 8 ++-
.../drm/i915/display/intel_display_types.h | 2 +-
drivers/gpu/drm/i915/display/intel_vrr.c | 58 +++++++++++++------
drivers/gpu/drm/i915/i915_drv.h | 3 +
drivers/gpu/drm/i915/i915_reg.h | 2 +
5 files changed, 53 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 422b59ebf6dc..ce44f18340ee 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -7631,10 +7631,11 @@ static void intel_dump_pipe_config(const struct intel_crtc_state *pipe_config,
intel_hdmi_infoframe_enable(DP_SDP_VSC))
intel_dump_dp_vsc_sdp(dev_priv, &pipe_config->infoframes.vsc);
- drm_dbg_kms(&dev_priv->drm, "vrr: %s, vmin: %d, vmax: %d, pipeline full: %d, flipline: %d, vmin vblank: %d, vmax vblank: %d\n",
+ drm_dbg_kms(&dev_priv->drm, "vrr: %s, vmin: %d, vmax: %d, pipeline full: %d, guardband: %d flipline: %d, vmin vblank: %d, vmax vblank: %d\n",
yesno(pipe_config->vrr.enable),
pipe_config->vrr.vmin, pipe_config->vrr.vmax,
- pipe_config->vrr.pipeline_full, pipe_config->vrr.flipline,
+ pipe_config->vrr.pipeline_full, pipe_config->vrr.guardband,
+ pipe_config->vrr.flipline,
intel_vrr_vmin_vblank_start(pipe_config),
intel_vrr_vmax_vblank_start(pipe_config));
@@ -8640,6 +8641,7 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
PIPE_CONF_CHECK_I(vrr.vmax);
PIPE_CONF_CHECK_I(vrr.flipline);
PIPE_CONF_CHECK_I(vrr.pipeline_full);
+ PIPE_CONF_CHECK_I(vrr.guardband);
PIPE_CONF_CHECK_BOOL(has_psr);
PIPE_CONF_CHECK_BOOL(has_psr2);
@@ -12200,6 +12202,8 @@ int intel_modeset_init_noirq(struct drm_i915_private *i915)
i915->framestart_delay = 1; /* 1-4 */
+ i915->window2_delay = 0; /* No DSB so no window2 delay */
+
intel_mode_config_init(i915);
ret = intel_cdclk_init(i915);
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 9c0adfc60c6f..9e9f768e2d7f 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1202,7 +1202,7 @@ struct intel_crtc_state {
struct {
bool enable;
u8 pipeline_full;
- u16 flipline, vmin, vmax;
+ u16 flipline, vmin, vmax, guardband;
} 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 046210ae1de0..c335b1dbafcf 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.c
+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
@@ -68,7 +68,10 @@ static int intel_vrr_vblank_exit_length(const struct intel_crtc_state *crtc_stat
struct drm_i915_private *i915 = to_i915(crtc->base.dev);
/* The hw imposes the extra scanline before frame start */
- return crtc_state->vrr.pipeline_full + i915->framestart_delay + 1;
+ if (DISPLAY_VER(i915) >= 13)
+ return crtc_state->vrr.guardband + i915->framestart_delay + 1;
+ else
+ return crtc_state->vrr.pipeline_full + i915->framestart_delay + 1;
}
int intel_vrr_vmin_vblank_start(const struct intel_crtc_state *crtc_state)
@@ -86,6 +89,8 @@ void
intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *i915 = to_i915(crtc->base.dev);
struct intel_connector *connector =
to_intel_connector(conn_state->connector);
struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
@@ -124,17 +129,26 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
crtc_state->vrr.flipline = crtc_state->vrr.vmin + 1;
/*
- * FIXME: s/4/framestart_delay+1/ to get consistent
- * earliest/latest points for register latching regardless
- * of the framestart_delay used?
- *
- * FIXME: this really needs the extra scanline to provide consistent
- * behaviour for all framestart_delay values. Otherwise with
- * framestart_delay==3 we will end up extending the min vblank by
- * one extra line.
+ * For XE_LPD+, we use guardband and pipeline override
+ * is deprecated.
*/
- crtc_state->vrr.pipeline_full =
- min(255, crtc_state->vrr.vmin - adjusted_mode->crtc_vdisplay - 4 - 1);
+ if (DISPLAY_VER(i915) >= 13)
+ crtc_state->vrr.guardband =
+ crtc_state->vrr.vmin - adjusted_mode->crtc_vdisplay -
+ i915->window2_delay;
+ else
+ /*
+ * FIXME: s/4/framestart_delay+1/ to get consistent
+ * earliest/latest points for register latching regardless
+ * of the framestart_delay used?
+ *
+ * FIXME: this really needs the extra scanline to provide consistent
+ * behaviour for all framestart_delay values. Otherwise with
+ * framestart_delay==3 we will end up extending the min vblank by
+ * one extra line.
+ */
+ crtc_state->vrr.pipeline_full =
+ min(255, crtc_state->vrr.vmin - adjusted_mode->crtc_vdisplay - 4 - 1);
crtc_state->mode_flags |= I915_MODE_FLAG_VRR;
}
@@ -149,10 +163,15 @@ void intel_vrr_enable(struct intel_encoder *encoder,
if (!crtc_state->vrr.enable)
return;
- trans_vrr_ctl = VRR_CTL_VRR_ENABLE |
- VRR_CTL_IGN_MAX_SHIFT | VRR_CTL_FLIP_LINE_EN |
- VRR_CTL_PIPELINE_FULL(crtc_state->vrr.pipeline_full) |
- VRR_CTL_PIPELINE_FULL_OVERRIDE;
+ if (DISPLAY_VER(dev_priv) >= 13)
+ trans_vrr_ctl = VRR_CTL_VRR_ENABLE |
+ VRR_CTL_IGN_MAX_SHIFT | VRR_CTL_FLIP_LINE_EN |
+ XELPD_VRR_CTL_VRR_GUARDBAND(crtc_state->vrr.guardband);
+ else
+ trans_vrr_ctl = VRR_CTL_VRR_ENABLE |
+ VRR_CTL_IGN_MAX_SHIFT | VRR_CTL_FLIP_LINE_EN |
+ VRR_CTL_PIPELINE_FULL(crtc_state->vrr.pipeline_full) |
+ VRR_CTL_PIPELINE_FULL_OVERRIDE;
intel_de_write(dev_priv, TRANS_VRR_VMIN(cpu_transcoder), crtc_state->vrr.vmin - 1);
intel_de_write(dev_priv, TRANS_VRR_VMAX(cpu_transcoder), crtc_state->vrr.vmax - 1);
@@ -199,8 +218,13 @@ void intel_vrr_get_config(struct intel_crtc *crtc,
if (!crtc_state->vrr.enable)
return;
- if (trans_vrr_ctl & VRR_CTL_PIPELINE_FULL_OVERRIDE)
- crtc_state->vrr.pipeline_full = REG_FIELD_GET(VRR_CTL_PIPELINE_FULL_MASK, trans_vrr_ctl);
+ if (DISPLAY_VER(dev_priv) >= 13)
+ crtc_state->vrr.guardband =
+ REG_FIELD_GET(XELPD_VRR_CTL_VRR_GUARDBAND_MASK, trans_vrr_ctl);
+ else
+ if (trans_vrr_ctl & VRR_CTL_PIPELINE_FULL_OVERRIDE)
+ crtc_state->vrr.pipeline_full =
+ REG_FIELD_GET(VRR_CTL_PIPELINE_FULL_MASK, trans_vrr_ctl);
if (trans_vrr_ctl & VRR_CTL_FLIP_LINE_EN)
crtc_state->vrr.flipline = intel_de_read(dev_priv, TRANS_VRR_FLIPLINE(cpu_transcoder)) + 1;
crtc_state->vrr.vmax = intel_de_read(dev_priv, TRANS_VRR_VMAX(cpu_transcoder)) + 1;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 39b5e019c1a5..6eb6c6acd81e 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1139,6 +1139,9 @@ struct drm_i915_private {
u8 framestart_delay;
+ /* Window2 specifies time required to program DSB (Window2) in number of scan lines */
+ u8 window2_delay;
+
u8 pch_ssc_use;
/* For i915gm/i945gm vblank irq workaround */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 506a5aa0646b..dbb75cd087d3 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4376,6 +4376,8 @@ enum {
#define VRR_CTL_PIPELINE_FULL_MASK REG_GENMASK(10, 3)
#define VRR_CTL_PIPELINE_FULL(x) REG_FIELD_PREP(VRR_CTL_PIPELINE_FULL_MASK, (x))
#define VRR_CTL_PIPELINE_FULL_OVERRIDE REG_BIT(0)
+#define XELPD_VRR_CTL_VRR_GUARDBAND_MASK REG_GENMASK(15, 0)
+#define XELPD_VRR_CTL_VRR_GUARDBAND(x) REG_FIELD_PREP(XELPD_VRR_CTL_VRR_GUARDBAND_MASK, (x))
#define _TRANS_VRR_VMAX_A 0x60424
#define _TRANS_VRR_VMAX_B 0x61424
--
2.25.4
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next prev parent reply other threads:[~2021-05-15 3:10 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-15 3:10 [Intel-gfx] [PATCH v4 00/23] Alder Lake-P Support Matt Roper
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 01/23] drm/i915/xelpd: Enhanced pipe underrun reporting Matt Roper
2021-05-17 6:52 ` Lisovskiy, Stanislav
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 02/23] drm/i915/xelpd: Support DP1.4 compression BPPs Matt Roper
2021-05-17 15:18 ` Jani Nikula
2021-05-18 6:33 ` Kulkarni, Vandita
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 03/23] drm/i915/xelpd: Calculate VDSC RC parameters Matt Roper
2021-05-18 18:06 ` Navare, Manasi
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 04/23] drm/i915/xelpd: Add rc_qp_table for rcparams calculation Matt Roper
2021-05-15 3:10 ` Matt Roper [this message]
2021-05-24 13:40 ` [Intel-gfx] [PATCH v4 05/23] drm/i915/xelpd: Add VRR guardband for VRR CTL Aditya Swarup
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 06/23] drm/i915/adl_p: Add dedicated SAGV watermarks Matt Roper
2021-05-17 6:49 ` Lisovskiy, Stanislav
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 07/23] drm/i915/adl_p: Setup ports/phys Matt Roper
2021-05-17 18:01 ` Imre Deak
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 08/23] drm/i915/adl_p: Handle TC cold Matt Roper
2021-05-17 14:53 ` Imre Deak
2021-05-17 23:15 ` Souza, Jose
2021-05-17 23:22 ` Souza, Jose
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 09/23] drm/i915/adl_p: Implement TC sequences Matt Roper
2021-05-17 15:12 ` Imre Deak
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 10/23] drm/i915/adl_p: Don't config MBUS and DBUF during display initialization Matt Roper
2021-05-18 11:58 ` Lisovskiy, Stanislav
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 11/23] drm/i915/adl_p: Add ddb allocation support Matt Roper
2021-05-18 12:22 ` Lisovskiy, Stanislav
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 12/23] drm/i915: Introduce MBUS relative dbuf offsets Matt Roper
2021-05-17 6:38 ` Lisovskiy, Stanislav
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 13/23] drm/i915/adl_p: MBUS programming Matt Roper
2023-07-17 10:32 ` Tvrtko Ursulin
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 14/23] drm/i915/adl_p: Tx escape clock with DSI Matt Roper
2021-05-17 7:36 ` Kulkarni, Vandita
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 15/23] drm/i915/display: Replace dc3co_enabled with dc3co_exitline on intel_psr struct Matt Roper
2021-05-17 6:39 ` Gupta, Anshuman
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 16/23] drm/i915/display: Remove a redundant function argument from intel_psr_enable_source() Matt Roper
2021-05-19 6:49 ` Anshuman Gupta
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 17/23] drm/i915/display: Add PSR interrupt error check function Matt Roper
2021-05-17 17:03 ` Souza, Jose
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 18/23] drm/i915/display: Introduce new intel_psr_pause/resume function Matt Roper
2021-05-17 16:58 ` Souza, Jose
2021-05-18 9:33 ` Mun, Gwan-gyeong
2021-05-18 11:06 ` Ville Syrjälä
2021-05-21 10:58 ` Mun, Gwan-gyeong
2021-05-21 21:52 ` Souza, Jose
2021-06-01 10:23 ` Mun, Gwan-gyeong
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 19/23] drm/i915/adl_p: Define and use ADL-P specific DP translation tables Matt Roper
2021-05-17 23:02 ` Clint Taylor
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 20/23] drm/i915/adl_p: Add PLL Support Matt Roper
2021-05-17 21:55 ` Clint Taylor
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 21/23] drm/i915/adl_p: Program DP/HDMI link rate to DDI_BUF_CTL Matt Roper
2021-05-17 17:01 ` Souza, Jose
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 22/23] drm/i915/adlp: Add PIPE_MISC2 programming Matt Roper
2021-05-17 21:46 ` Clint Taylor
2021-05-15 3:10 ` [Intel-gfx] [PATCH v4 23/23] drm/i915/adl_p: Update memory bandwidth parameters Matt Roper
2021-05-17 17:02 ` Souza, Jose
2021-05-15 4:51 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Alder Lake-P Support (rev3) Patchwork
2021-05-15 4:53 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-05-15 5:22 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2021-05-17 23:41 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Alder Lake-P Support (rev4) Patchwork
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