[v14,08/13] drm/i915/dp: Modify VDSC helpers to configure DSC for Bigjoiner slave

Message ID	20201103001932.11286-9-manasi.d.navare@intel.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=aXtb=EJ=lists.freedesktop.org=intel-gfx-bounces@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0047522384 IronPort-SDR: /wPmzWHCTU6l+b9p5Oq7XaJey5WbWYJeYhyg6zm4WuKHaShT56p3ir6Rh4XMuKIF6riUht4Jtm UrVE3Mj1Jmgg== IronPort-SDR: HLUx4SahXxuq3Sns6x2SUYxnEzI0IVV/swuF9aOx/FuPAmST/FDS2PX6Q8+w78DrSLIEHjNFAf 0YyqEzm5QbpA== From: Manasi Navare <manasi.d.navare@intel.com> To: intel-gfx@lists.freedesktop.org Date: Mon, 2 Nov 2020 16:19:27 -0800 Message-Id: <20201103001932.11286-9-manasi.d.navare@intel.com> In-Reply-To: <20201103001932.11286-1-manasi.d.navare@intel.com> References: <20201103001932.11286-1-manasi.d.navare@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v14 08/13] drm/i915/dp: Modify VDSC helpers to configure DSC for Bigjoiner slave Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
Series	End to end Big Joiner enabling \| expand [v14,00/13] End to end Big Joiner enabling [v14,01/13] drm/i915/dp: Some reshuffling in mode_valid as prep for bigjoiner modes [v14,02/13] drm/i915: Move encoder->get_config to a new function [v14,03/13] drm/i915: Add hw.pipe_mode to allow bigjoiner pipe/transcoder split [v14,04/13] drm/i915: Pass intel_atomic_state instead of drm_atomic_state [v14,05/13] drm/i915/dp: Prep for bigjoiner atomic check [v14,06/13] drm/i915/dp: Allow big joiner modes in intel_dp_mode_valid(), v3. [v14,07/13] drm/i915: Try to make bigjoiner work in atomic check [v14,08/13] drm/i915/dp: Modify VDSC helpers to configure DSC for Bigjoiner slave [v14,09/13] drm/i915/dp: Master/Slave enable/disable sequence for bigjoiner [v14,10/13] drm/i915: HW state readout for Bigjoiner case [v14,11/13] drm/i915: Link planes in a bigjoiner configuration, v3. [v14,12/13] drm/i915: Add bigjoiner aware plane clipping checks [v14,13/13] drm/i915: Add debugfs dumping for bigjoiner, v3.

diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c index 096652921453..0fecf372be11 100644 --- a/drivers/gpu/drm/i915/display/icl_dsi.c +++ b/drivers/gpu/drm/i915/display/icl_dsi.c @@ -1492,7 +1492,7 @@ static void gen11_dsi_get_config(struct intel_encoder *encoder, struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc); struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); - intel_dsc_get_config(encoder, pipe_config); + intel_dsc_get_config(pipe_config); /* FIXME: adapt icl_ddi_clock_get() for DSI and use that? */ pipe_config->port_clock = intel_dpll_get_freq(i915, diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 19b16517a502..fbfb8935f10f 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -2216,13 +2216,6 @@ static void intel_ddi_get_power_domains(struct intel_encoder *encoder, intel_phy_is_tc(dev_priv, phy)) intel_display_power_get(dev_priv, intel_ddi_main_link_aux_domain(dig_port)); - - /* - * VDSC power is needed when DSC is enabled - */ - if (crtc_state->dsc.compression_enable) - intel_display_power_get(dev_priv, - intel_dsc_power_domain(crtc_state)); } void intel_ddi_enable_pipe_clock(struct intel_encoder *encoder, @@ -4408,7 +4401,7 @@ void intel_ddi_get_config(struct intel_encoder *encoder, if (drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder))) return; - intel_dsc_get_config(encoder, pipe_config); + intel_dsc_get_config(pipe_config); temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder)); if (temp & TRANS_DDI_PHSYNC) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 01838679071a..93a367d915e8 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -7602,6 +7602,9 @@ static u64 get_crtc_power_domains(struct intel_crtc_state *crtc_state) if (crtc_state->shared_dpll) mask |= BIT_ULL(POWER_DOMAIN_DISPLAY_CORE); + if (crtc_state->dsc.compression_enable) + mask |= BIT_ULL(intel_dsc_power_domain(crtc_state)); + return mask; } diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 7add88103cfc..0bcb3e352109 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2099,12 +2099,10 @@ static bool intel_dp_supports_fec(struct intel_dp *intel_dp, static bool intel_dp_supports_dsc(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state) { - struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; - - if (!intel_dp_is_edp(intel_dp) && !crtc_state->fec_enable) + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP) && !crtc_state->fec_enable) return false; - return intel_dsc_source_support(encoder, crtc_state) && + return intel_dsc_source_support(crtc_state) && drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd); } diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c index c5735c365659..e2716a67b281 100644 --- a/drivers/gpu/drm/i915/display/intel_vdsc.c +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c @@ -332,11 +332,10 @@ static const struct rc_parameters *get_rc_params(u16 compressed_bpp, return &rc_parameters[row_index][column_index]; } -bool intel_dsc_source_support(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state) +bool intel_dsc_source_support(const struct intel_crtc_state *crtc_state) { const struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct drm_i915_private *i915 = to_i915(crtc->base.dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; enum pipe pipe = crtc->pipe; @@ -490,11 +489,10 @@ intel_dsc_power_domain(const struct intel_crtc_state *crtc_state) return POWER_DOMAIN_TRANSCODER_VDSC_PW2; } -static void intel_dsc_pps_configure(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state) +static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); const struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; enum pipe pipe = crtc->pipe; u32 pps_val = 0; @@ -503,6 +501,9 @@ static void intel_dsc_pps_configure(struct intel_encoder *encoder, u8 num_vdsc_instances = (crtc_state->dsc.dsc_split) ? 2 : 1; int i = 0; + if (crtc_state->bigjoiner) + num_vdsc_instances *= 2; + /* Populate PICTURE_PARAMETER_SET_0 registers */ pps_val = DSC_VER_MAJ | vdsc_cfg->dsc_version_minor << DSC_VER_MIN_SHIFT | @@ -973,55 +974,6 @@ static void intel_dsc_pps_configure(struct intel_encoder *encoder, } } -void intel_dsc_get_config(struct intel_encoder *encoder, - struct intel_crtc_state *crtc_state) -{ - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; - struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - enum pipe pipe = crtc->pipe; - enum intel_display_power_domain power_domain; - intel_wakeref_t wakeref; - u32 dss_ctl1, dss_ctl2, val; - - if (!intel_dsc_source_support(encoder, crtc_state)) - return; - - power_domain = intel_dsc_power_domain(crtc_state); - - wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain); - if (!wakeref) - return; - - if (!is_pipe_dsc(crtc_state)) { - dss_ctl1 = intel_de_read(dev_priv, DSS_CTL1); - dss_ctl2 = intel_de_read(dev_priv, DSS_CTL2); - } else { - dss_ctl1 = intel_de_read(dev_priv, ICL_PIPE_DSS_CTL1(pipe)); - dss_ctl2 = intel_de_read(dev_priv, ICL_PIPE_DSS_CTL2(pipe)); - } - - crtc_state->dsc.compression_enable = dss_ctl2 & LEFT_BRANCH_VDSC_ENABLE; - if (!crtc_state->dsc.compression_enable) - goto out; - - crtc_state->dsc.dsc_split = (dss_ctl2 & RIGHT_BRANCH_VDSC_ENABLE) && - (dss_ctl1 & JOINER_ENABLE); - - /* FIXME: add more state readout as needed */ - - /* PPS1 */ - if (!is_pipe_dsc(crtc_state)) - val = intel_de_read(dev_priv, DSCA_PICTURE_PARAMETER_SET_1); - else - val = intel_de_read(dev_priv, - ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe)); - vdsc_cfg->bits_per_pixel = val; - crtc_state->dsc.compressed_bpp = vdsc_cfg->bits_per_pixel >> 4; -out: - intel_display_power_put(dev_priv, power_domain, wakeref); -} - static void intel_dsc_dsi_pps_write(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { @@ -1060,77 +1012,126 @@ static void intel_dsc_dp_pps_write(struct intel_encoder *encoder, sizeof(dp_dsc_pps_sdp)); } +static i915_reg_t dss_ctl1_reg(const struct intel_crtc_state *crtc_state) +{ + enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe; + + if (crtc_state->cpu_transcoder == TRANSCODER_EDP) + return DSS_CTL1; + + return ICL_PIPE_DSS_CTL1(pipe); +} + +static i915_reg_t dss_ctl2_reg(const struct intel_crtc_state *crtc_state) +{ + enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe; + + if (crtc_state->cpu_transcoder == TRANSCODER_EDP) + return DSS_CTL2; + + return ICL_PIPE_DSS_CTL2(pipe); +} + void intel_dsc_enable(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - enum pipe pipe = crtc->pipe; - i915_reg_t dss_ctl1_reg, dss_ctl2_reg; + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); u32 dss_ctl1_val = 0; u32 dss_ctl2_val = 0; if (!crtc_state->dsc.compression_enable) return; - /* Enable Power wells for VDSC/joining */ - intel_display_power_get(dev_priv, - intel_dsc_power_domain(crtc_state)); - - intel_dsc_pps_configure(encoder, crtc_state); + intel_dsc_pps_configure(crtc_state); - if (encoder->type == INTEL_OUTPUT_DSI) - intel_dsc_dsi_pps_write(encoder, crtc_state); - else - intel_dsc_dp_pps_write(encoder, crtc_state); - - if (!is_pipe_dsc(crtc_state)) { - dss_ctl1_reg = DSS_CTL1; - dss_ctl2_reg = DSS_CTL2; - } else { - dss_ctl1_reg = ICL_PIPE_DSS_CTL1(pipe); - dss_ctl2_reg = ICL_PIPE_DSS_CTL2(pipe); + if (!crtc_state->bigjoiner_slave) { + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI)) + intel_dsc_dsi_pps_write(encoder, crtc_state); + else + intel_dsc_dp_pps_write(encoder, crtc_state); } + dss_ctl2_val |= LEFT_BRANCH_VDSC_ENABLE; if (crtc_state->dsc.dsc_split) { dss_ctl2_val |= RIGHT_BRANCH_VDSC_ENABLE; dss_ctl1_val |= JOINER_ENABLE; } - intel_de_write(dev_priv, dss_ctl1_reg, dss_ctl1_val); - intel_de_write(dev_priv, dss_ctl2_reg, dss_ctl2_val); + if (crtc_state->bigjoiner) { + dss_ctl1_val |= BIG_JOINER_ENABLE; + if (!crtc_state->bigjoiner_slave) + dss_ctl1_val |= MASTER_BIG_JOINER_ENABLE; + } + intel_de_write(dev_priv, dss_ctl1_reg(crtc_state), dss_ctl1_val); + intel_de_write(dev_priv, dss_ctl2_reg(crtc_state), dss_ctl2_val); } void intel_dsc_disable(const struct intel_crtc_state *old_crtc_state) { struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - enum pipe pipe = crtc->pipe; - i915_reg_t dss_ctl1_reg, dss_ctl2_reg; - u32 dss_ctl1_val = 0, dss_ctl2_val = 0; if (!old_crtc_state->dsc.compression_enable) return; - if (!is_pipe_dsc(old_crtc_state)) { - dss_ctl1_reg = DSS_CTL1; - dss_ctl2_reg = DSS_CTL2; - } else { - dss_ctl1_reg = ICL_PIPE_DSS_CTL1(pipe); - dss_ctl2_reg = ICL_PIPE_DSS_CTL2(pipe); + intel_de_write(dev_priv, dss_ctl1_reg(old_crtc_state), 0); + intel_de_write(dev_priv, dss_ctl2_reg(old_crtc_state), 0); +} + +void intel_dsc_get_config(struct intel_crtc_state *crtc_state) +{ + struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + enum intel_display_power_domain power_domain; + intel_wakeref_t wakeref; + u32 dss_ctl1, dss_ctl2, val; + + if (!intel_dsc_source_support(crtc_state)) + return; + + power_domain = intel_dsc_power_domain(crtc_state); + + wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain); + if (!wakeref) + return; + + dss_ctl1 = intel_de_read(dev_priv, dss_ctl1_reg(crtc_state)); + dss_ctl2 = intel_de_read(dev_priv, dss_ctl2_reg(crtc_state)); + + crtc_state->dsc.compression_enable = dss_ctl2 & LEFT_BRANCH_VDSC_ENABLE; + if (!crtc_state->dsc.compression_enable) + goto out; + + crtc_state->dsc.dsc_split = (dss_ctl2 & RIGHT_BRANCH_VDSC_ENABLE) && + (dss_ctl1 & JOINER_ENABLE); + + if (dss_ctl1 & BIG_JOINER_ENABLE) { + crtc_state->bigjoiner = true; + + if (!(dss_ctl1 & MASTER_BIG_JOINER_ENABLE)) { + crtc_state->bigjoiner_slave = true; + if (!WARN_ON(crtc->pipe == PIPE_A)) + crtc_state->bigjoiner_linked_crtc = + intel_get_crtc_for_pipe(dev_priv, crtc->pipe - 1); + } else { + if (!WARN_ON(INTEL_NUM_PIPES(dev_priv) == crtc->pipe + 1)) + crtc_state->bigjoiner_linked_crtc = + intel_get_crtc_for_pipe(dev_priv, crtc->pipe + 1); + } } - dss_ctl1_val = intel_de_read(dev_priv, dss_ctl1_reg); - if (dss_ctl1_val & JOINER_ENABLE) - dss_ctl1_val &= ~JOINER_ENABLE; - intel_de_write(dev_priv, dss_ctl1_reg, dss_ctl1_val); - - dss_ctl2_val = intel_de_read(dev_priv, dss_ctl2_reg); - if (dss_ctl2_val & LEFT_BRANCH_VDSC_ENABLE || - dss_ctl2_val & RIGHT_BRANCH_VDSC_ENABLE) - dss_ctl2_val &= ~(LEFT_BRANCH_VDSC_ENABLE | - RIGHT_BRANCH_VDSC_ENABLE); - intel_de_write(dev_priv, dss_ctl2_reg, dss_ctl2_val); - - /* Disable Power wells for VDSC/joining */ - intel_display_power_put_unchecked(dev_priv, - intel_dsc_power_domain(old_crtc_state)); + + /* FIXME: add more state readout as needed */ + + /* PPS1 */ + if (!is_pipe_dsc(crtc_state)) + val = intel_de_read(dev_priv, DSCA_PICTURE_PARAMETER_SET_1); + else + val = intel_de_read(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe)); + vdsc_cfg->bits_per_pixel = val; + crtc_state->dsc.compressed_bpp = vdsc_cfg->bits_per_pixel >> 4; +out: + intel_display_power_put(dev_priv, power_domain, wakeref); } diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.h b/drivers/gpu/drm/i915/display/intel_vdsc.h index e56a3254c214..65d301c23580 100644 --- a/drivers/gpu/drm/i915/display/intel_vdsc.h +++ b/drivers/gpu/drm/i915/display/intel_vdsc.h @@ -11,15 +11,13 @@ struct intel_encoder; struct intel_crtc_state; -bool intel_dsc_source_support(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state); +bool intel_dsc_source_support(const struct intel_crtc_state *crtc_state); void intel_dsc_enable(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); void intel_dsc_disable(const struct intel_crtc_state *crtc_state); int intel_dsc_compute_params(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config); -void intel_dsc_get_config(struct intel_encoder *encoder, - struct intel_crtc_state *crtc_state); +void intel_dsc_get_config(struct intel_crtc_state *crtc_state); enum intel_display_power_domain intel_dsc_power_domain(const struct intel_crtc_state *crtc_state);

[v14,08/13] drm/i915/dp: Modify VDSC helpers to configure DSC for Bigjoiner slave

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