From patchwork Wed Nov 15 15:49:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Golani, Mitulkumar Ajitkumar" X-Patchwork-Id: 13457047 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8A3AAC2BB3F for ; Wed, 15 Nov 2023 15:54:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9893710E0AC; Wed, 15 Nov 2023 15:54:54 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2F17010E09B for ; Wed, 15 Nov 2023 15:54:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700063693; x=1731599693; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=tDyFjQ7sjnIAbD0XWOzf21O4bbiUkr8T6/tcf4ojevg=; b=JhQfllCqEcWZECV0s0EsPpeFb7sRDajtJ2LLFongmHT3lXzOTwCmR5t3 VPLtz0t2eIKSLGWVZr0/VRWPCHZA9oT3AP2r90BdjiW8ijK6hduem5mQ9 S09IcZzO7+uHguwHiEx2XPad7YPTk6PNcbvmaz5XkHnRCQwrBHjGNoG/Z 2KCXZAWeKGJk8xAlzotpap+5kNo0lhBn9J1jZRUqjZ5XUQE8VZJm8j9cw 82XEyQ/XSBme8BRAsXZAoOQcK52PG1PPMv5+B79I2vqKtkiqPOXL/VwJ8 6p/NSDCrcLjS1bGAYG1a55AB5bp4Zg1IJGKqT2QQ+Ukz+1s4wBRw53IXI g==; X-IronPort-AV: E=McAfee;i="6600,9927,10895"; a="9537387" X-IronPort-AV: E=Sophos;i="6.03,305,1694761200"; d="scan'208";a="9537387" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2023 07:54:52 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10895"; a="835426525" X-IronPort-AV: E=Sophos;i="6.03,305,1694761200"; d="scan'208";a="835426525" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmsmga004.fm.intel.com with ESMTP; 15 Nov 2023 07:54:49 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Wed, 15 Nov 2023 21:19:41 +0530 Message-Id: <20231115154943.3801663-2-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231115154943.3801663-1-mitulkumar.ajitkumar.golani@intel.com> References: <20231115154943.3801663-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [RFC 1/3] drm/i915: Define and compute Transcoder CMRR registers X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com, ville.syrjala@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Add register definitions for Transcoder Fixed Average Vtotal mode/CMRR function, with the necessary bitfields. Compute these registers when CMRR is enabled, extending Adaptive refresh rate capabilities. --v2: - Use intel_de_read64_2x32 in intel_vrr_get_config. [Jani] - Fix indent and order based on register offset. [Jani] Signed-off-by: Mitul Golani --- drivers/gpu/drm/i915/display/intel_display.c | 23 ++++++++++++++++++- .../drm/i915/display/intel_display_types.h | 6 +++++ drivers/gpu/drm/i915/display/intel_vrr.c | 22 ++++++++++++++++++ drivers/gpu/drm/i915/i915_reg.h | 10 ++++++++ 4 files changed, 60 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 125903007a29..f99d2de840bc 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -921,6 +921,13 @@ static bool vrr_params_changed(const struct intel_crtc_state *old_crtc_state, old_crtc_state->vrr.pipeline_full != new_crtc_state->vrr.pipeline_full; } +static bool cmrr_params_changed(const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + return old_crtc_state->cmrr.cmrr_m != new_crtc_state->cmrr.cmrr_m || + old_crtc_state->cmrr.cmrr_n != new_crtc_state->cmrr.cmrr_n; +} + static bool vrr_enabling(const struct intel_crtc_state *old_crtc_state, const struct intel_crtc_state *new_crtc_state) { @@ -5067,6 +5074,16 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, } \ } while (0) +#define PIPE_CONF_CHECK_LLI(name) do { \ + if (current_config->name != pipe_config->name) { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "(expected %lli, found %lli)", \ + current_config->name, \ + pipe_config->name); \ + ret = false; \ + } \ +} while (0) + #define PIPE_CONF_CHECK_BOOL(name) do { \ if (current_config->name != pipe_config->name) { \ pipe_config_mismatch(fastset, crtc, __stringify(name), \ @@ -5447,10 +5464,13 @@ 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_LLI(cmrr.cmrr_m); + PIPE_CONF_CHECK_LLI(cmrr.cmrr_n); } #undef PIPE_CONF_CHECK_X #undef PIPE_CONF_CHECK_I +#undef PIPE_CONF_CHECK_LLI #undef PIPE_CONF_CHECK_BOOL #undef PIPE_CONF_CHECK_BOOL_INCOMPLETE #undef PIPE_CONF_CHECK_P @@ -6790,7 +6810,8 @@ static void intel_pre_update_crtc(struct intel_atomic_state *state, intel_crtc_needs_fastset(new_crtc_state)) icl_set_pipe_chicken(new_crtc_state); - if (vrr_params_changed(old_crtc_state, new_crtc_state)) + if (vrr_params_changed(old_crtc_state, new_crtc_state) || + cmrr_params_changed(old_crtc_state, new_crtc_state)) intel_vrr_set_transcoder_timings(new_crtc_state); } diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 9a44350ba05d..e42a0807227b 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1406,6 +1406,12 @@ struct intel_crtc_state { u16 flipline, vmin, vmax, guardband; } vrr; + /* Content Match Refresh Rate state */ + struct { + bool enable; + u64 cmrr_n, cmrr_m; + } cmrr; + /* Stream Splitter for eDP MSO */ struct { bool enable; diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index 5d905f932cb4..c889b0aa69a4 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -199,6 +199,19 @@ void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state) return; } + if (crtc_state->cmrr.enable) { + intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder), + VRR_CTL_CMRR_ENABLE | trans_vrr_ctl(crtc_state)); + intel_de_write(dev_priv, TRANS_CMRR_M_HI(cpu_transcoder), + upper_32_bits(crtc_state->cmrr.cmrr_m)); + intel_de_write(dev_priv, TRANS_CMRR_M_LO(cpu_transcoder), + lower_32_bits(crtc_state->cmrr.cmrr_m)); + intel_de_write(dev_priv, TRANS_CMRR_N_HI(cpu_transcoder), + upper_32_bits(crtc_state->cmrr.cmrr_n)); + intel_de_write(dev_priv, TRANS_CMRR_N_LO(cpu_transcoder), + lower_32_bits(crtc_state->cmrr.cmrr_n)); + } + 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); intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder), trans_vrr_ctl(crtc_state)); @@ -269,6 +282,15 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state) crtc_state->vrr.enable = trans_vrr_ctl & VRR_CTL_VRR_ENABLE; + if (crtc_state->cmrr.enable) { + crtc_state->cmrr.cmrr_n = + intel_de_read64_2x32(dev_priv, TRANS_CMRR_N_LO(cpu_transcoder), + TRANS_CMRR_N_HI(cpu_transcoder)); + crtc_state->cmrr.cmrr_m = + intel_de_read64_2x32(dev_priv, TRANS_CMRR_M_LO(cpu_transcoder), + TRANS_CMRR_M_HI(cpu_transcoder)); + } + if (DISPLAY_VER(dev_priv) >= 13) crtc_state->vrr.guardband = REG_FIELD_GET(XELPD_VRR_CTL_VRR_GUARDBAND_MASK, trans_vrr_ctl); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 135e8d8dbdf0..2254fd12a8c0 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2013,6 +2013,7 @@ #define VRR_CTL_VRR_ENABLE REG_BIT(31) #define VRR_CTL_IGN_MAX_SHIFT REG_BIT(30) #define VRR_CTL_FLIP_LINE_EN REG_BIT(29) +#define VRR_CTL_CMRR_ENABLE REG_BIT(27) #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) @@ -2089,6 +2090,15 @@ #define TRANS_VRR_STATUS2(trans) _MMIO_TRANS2(trans, _TRANS_VRR_STATUS2_A) #define VRR_STATUS2_VERT_LN_CNT_MASK REG_GENMASK(19, 0) +#define _TRANS_CMRR_M_LO_A 0x604F0 +#define TRANS_CMRR_M_LO(trans) _MMIO_TRANS2(trans, _TRANS_CMRR_M_LO_A) +#define _TRANS_CMRR_M_HI_A 0x604F4 +#define TRANS_CMRR_M_HI(trans) _MMIO_TRANS2(trans, _TRANS_CMRR_M_HI_A) +#define _TRANS_CMRR_N_LO_A 0x604F8 +#define TRANS_CMRR_N_LO(trans) _MMIO_TRANS2(trans, _TRANS_CMRR_N_LO_A) +#define _TRANS_CMRR_N_HI_A 0x604FC +#define TRANS_CMRR_N_HI(trans) _MMIO_TRANS2(trans, _TRANS_CMRR_N_HI_A) + #define _TRANS_PUSH_A 0x60A70 #define _TRANS_PUSH_B 0x61A70 #define _TRANS_PUSH_C 0x62A70 From patchwork Wed Nov 15 15:49:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Golani, Mitulkumar Ajitkumar" X-Patchwork-Id: 13457049 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BC004C2BB3F for ; Wed, 15 Nov 2023 15:55:05 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E20FE10E0A5; Wed, 15 Nov 2023 15:55:04 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id 75ADE10E09B for ; Wed, 15 Nov 2023 15:55:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700063701; x=1731599701; 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15 Nov 2023 07:54:52 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Wed, 15 Nov 2023 21:19:42 +0530 Message-Id: <20231115154943.3801663-3-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231115154943.3801663-1-mitulkumar.ajitkumar.golani@intel.com> References: <20231115154943.3801663-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [RFC 2/3] drm/i915: Add Enable/Disable for CMRR based on VRR state X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com, ville.syrjala@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Add CMRR/Fixed Average Vtotal mode enable and disable functions based on change in VRR mode of operation. When Adaptive Sync Vtotal is enabled, Fixed Average Vtotal mode is disabled and vice versa. With this commit setting the stage for subsequent CMRR enablement. --v2: - Check pipe active state in cmrr enabling. [Jani] - Remove usage of bitwise OR on booleans. [Jani] - Revert unrelated changes. [Jani] - Update intel_vrr_enable, vrr and cmrr enable conditions. [Jani] - Simplify whole if-ladder in intel_vrr_enable. [Jani] - Revert patch restructuring mistakes in intel_vrr_get_config. [Jani] --v3: - Check pipe active state in cmrr disabling. (Similar to enable case).[Jani] - Correct messed up condition in intel_vrr_enable while fixing rev2. [Jani] Signed-off-by: Mitul Golani --- .../drm/i915/display/intel_crtc_state_dump.c | 4 ++- drivers/gpu/drm/i915/display/intel_display.c | 30 ++++++++++++++++--- drivers/gpu/drm/i915/display/intel_vrr.c | 28 ++++++++++++----- 3 files changed, 49 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c index 2d15e82c0b3d..908a4c4ccb00 100644 --- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c +++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c @@ -299,7 +299,9 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config, intel_dump_buffer(i915, "ELD: ", pipe_config->eld, drm_eld_size(pipe_config->eld)); - drm_dbg_kms(&i915->drm, "vrr: %s, vmin: %d, vmax: %d, pipeline full: %d, guardband: %d flipline: %d, vmin vblank: %d, vmax vblank: %d\n", + drm_dbg_kms(&i915->drm, + "cmrr: %s, vrr: %s, vmin: %d, vmax: %d, pipeline full: %d, guardband: %d, flipline: %d, vmin vblank: %d, vmax vblank: %d\n", + str_yes_no(pipe_config->cmrr.enable), str_yes_no(pipe_config->vrr.enable), pipe_config->vrr.vmin, pipe_config->vrr.vmax, pipe_config->vrr.pipeline_full, pipe_config->vrr.guardband, diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index f99d2de840bc..31ee7984a5fd 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -937,6 +937,15 @@ static bool vrr_enabling(const struct intel_crtc_state *old_crtc_state, vrr_params_changed(old_crtc_state, new_crtc_state))); } +static bool cmrr_enabling(const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + if (!new_crtc_state->hw.active) + return false; + + return is_enabling(cmrr.enable, old_crtc_state, new_crtc_state); +} + static bool vrr_disabling(const struct intel_crtc_state *old_crtc_state, const struct intel_crtc_state *new_crtc_state) { @@ -946,6 +955,15 @@ static bool vrr_disabling(const struct intel_crtc_state *old_crtc_state, vrr_params_changed(old_crtc_state, new_crtc_state))); } +static bool cmrr_disabling(const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + if (!old_crtc_state->hw.active) + return false; + + return is_disabling(cmrr.enable, old_crtc_state, new_crtc_state); +} + #undef is_disabling #undef is_enabling @@ -1064,7 +1082,8 @@ static void intel_pre_plane_update(struct intel_atomic_state *state, intel_atomic_get_new_crtc_state(state, crtc); enum pipe pipe = crtc->pipe; - if (vrr_disabling(old_crtc_state, new_crtc_state)) { + if (vrr_disabling(old_crtc_state, new_crtc_state) || + cmrr_disabling(old_crtc_state, new_crtc_state)) { intel_vrr_disable(old_crtc_state); intel_crtc_update_active_timings(old_crtc_state, false); } @@ -6754,7 +6773,8 @@ static void commit_pipe_post_planes(struct intel_atomic_state *state, !intel_crtc_needs_modeset(new_crtc_state)) skl_detach_scalers(new_crtc_state); - if (vrr_enabling(old_crtc_state, new_crtc_state)) + if (vrr_enabling(old_crtc_state, new_crtc_state) || + cmrr_enabling(old_crtc_state, new_crtc_state)) intel_vrr_enable(new_crtc_state); } @@ -6851,9 +6871,11 @@ static void intel_update_crtc(struct intel_atomic_state *state, * FIXME Should be synchronized with the start of vblank somehow... */ if (vrr_enabling(old_crtc_state, new_crtc_state) || - new_crtc_state->update_m_n || new_crtc_state->update_lrr) + new_crtc_state->update_m_n || new_crtc_state->update_lrr || + cmrr_enabling(old_crtc_state, new_crtc_state)) intel_crtc_update_active_timings(new_crtc_state, - new_crtc_state->vrr.enable); + new_crtc_state->vrr.enable || + new_crtc_state->cmrr.enable); /* * We usually enable FIFO underrun interrupts as part of the diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index c889b0aa69a4..8f1d241e1f79 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -224,7 +224,7 @@ void intel_vrr_send_push(const struct intel_crtc_state *crtc_state) struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; - if (!crtc_state->vrr.enable) + if (!(crtc_state->vrr.enable || crtc_state->cmrr.enable)) return; intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), @@ -237,7 +237,7 @@ bool intel_vrr_is_push_sent(const struct intel_crtc_state *crtc_state) struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; - if (!crtc_state->vrr.enable) + if (!(crtc_state->vrr.enable || crtc_state->cmrr.enable)) return false; return intel_de_read(dev_priv, TRANS_PUSH(cpu_transcoder)) & TRANS_PUSH_SEND; @@ -248,12 +248,24 @@ void intel_vrr_enable(const 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; - if (!crtc_state->vrr.enable) + if (drm_WARN_ON(&dev_priv->drm, crtc_state->vrr.enable && + crtc_state->cmrr.enable)) return; - 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 (crtc_state->vrr.enable) { + 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 (crtc_state->cmrr.enable) { + 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 | VRR_CTL_CMRR_ENABLE | + trans_vrr_ctl(crtc_state)); + } } void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state) @@ -262,7 +274,7 @@ void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state) struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum transcoder cpu_transcoder = old_crtc_state->cpu_transcoder; - if (!old_crtc_state->vrr.enable) + if (!(old_crtc_state->vrr.enable || old_crtc_state->cmrr.enable)) return; intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder), @@ -305,6 +317,6 @@ 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->cmrr.enable) crtc_state->mode_flags |= I915_MODE_FLAG_VRR; } From patchwork Wed Nov 15 15:49:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Golani, Mitulkumar Ajitkumar" X-Patchwork-Id: 13457048 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D4310C072A2 for ; Wed, 15 Nov 2023 15:55:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2943D10E09B; Wed, 15 Nov 2023 15:55:03 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id AA07F10E0A5 for ; 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a="835426538" X-IronPort-AV: E=Sophos;i="6.03,305,1694761200"; d="scan'208";a="835426538" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmsmga004.fm.intel.com with ESMTP; 15 Nov 2023 07:54:55 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Wed, 15 Nov 2023 21:19:43 +0530 Message-Id: <20231115154943.3801663-4-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231115154943.3801663-1-mitulkumar.ajitkumar.golani@intel.com> References: <20231115154943.3801663-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [RFC 3/3] drm/i915: Compute CMRR and calculate vtotal X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com, ville.syrjala@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Compute Fixed Average Vtotal/CMRR with resepect to userspace VRR enablement. Also calculate required parameters in case of CMRR is enabled. During intel_vrr_compute_config, CMRR is getting enabled based on userspace has enabled Adaptive Sync Vtotal mode (Legacy VRR) or not. --v2: - Update is_cmrr_frac_required function return as bool, not int. [Jani] - Use signed int math instead of unsigned in cmrr_get_vtotal2. [Jani] - Fix typo and usage of camel case in cmrr_get_vtotal. [Jani] - Use do_div in cmrr_get_vtotalwhile calculating cmrr_m. [ Jani] - Simplify cmrr and vrr compute config in intel_vrr_compute_config. [Jani] - Correct valiable name usage in is_cmrr_frac_required. [Ville] Signed-off-by: Mitul Golani --- drivers/gpu/drm/i915/display/intel_display.c | 1 + .../drm/i915/display/intel_display_device.h | 1 + drivers/gpu/drm/i915/display/intel_vrr.c | 76 +++++++++++++++++-- 3 files changed, 72 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 31ee7984a5fd..84990fffe90a 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -5485,6 +5485,7 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, PIPE_CONF_CHECK_I(vrr.guardband); PIPE_CONF_CHECK_LLI(cmrr.cmrr_m); PIPE_CONF_CHECK_LLI(cmrr.cmrr_n); + PIPE_CONF_CHECK_BOOL(cmrr.enable); } #undef PIPE_CONF_CHECK_X diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h index 4299cc452e05..66cbc3a6bbe8 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.h +++ b/drivers/gpu/drm/i915/display/intel_display_device.h @@ -68,6 +68,7 @@ struct drm_printer; #define HAS_TRANSCODER(i915, trans) ((DISPLAY_RUNTIME_INFO(i915)->cpu_transcoder_mask & \ BIT(trans)) != 0) #define HAS_VRR(i915) (DISPLAY_VER(i915) >= 11) +#define HAS_CMRR(i915) (DISPLAY_VER(i915) >= 20) #define INTEL_NUM_PIPES(i915) (hweight8(DISPLAY_RUNTIME_INFO(i915)->pipe_mask)) #define I915_HAS_HOTPLUG(i915) (DISPLAY_INFO(i915)->has_hotplug) #define OVERLAY_NEEDS_PHYSICAL(i915) (DISPLAY_INFO(i915)->overlay_needs_physical) diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index 8f1d241e1f79..554e39bb4d94 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -105,6 +105,52 @@ int intel_vrr_vmax_vblank_start(const struct intel_crtc_state *crtc_state) return crtc_state->vrr.vmax - intel_vrr_vblank_exit_length(crtc_state); } +static bool +is_cmrr_frac_required(struct intel_crtc_state *crtc_state) +{ + int calculated_refresh_k, actual_refresh_k; + struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; + + actual_refresh_k = drm_mode_vrefresh(adjusted_mode) * 1000; + calculated_refresh_k = DIV_ROUND_UP(adjusted_mode->crtc_clock * 1000, + adjusted_mode->crtc_htotal) * 1000; + calculated_refresh_k /= adjusted_mode->crtc_vtotal; + + if (calculated_refresh_k == actual_refresh_k) + return false; + + return true; +} + +static unsigned int +cmrr_get_vtotal(struct intel_crtc_state *crtc_state) +{ + int multiplier_m = 1, multiplier_n = 1, vtotal; + int actual_refresh_rate, desired_refresh_rate; + long long actual_pixel_rate, adjusted_pixel_rate; + struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; + + actual_refresh_rate = DIV_ROUND_UP(adjusted_mode->crtc_clock * 1000, + adjusted_mode->crtc_htotal) * 1000; + actual_refresh_rate /= adjusted_mode->crtc_vtotal; + desired_refresh_rate = drm_mode_vrefresh(adjusted_mode); + actual_pixel_rate = actual_refresh_rate * adjusted_mode->crtc_vtotal; + actual_pixel_rate = (actual_pixel_rate * adjusted_mode->crtc_htotal) / 1000; + + if (is_cmrr_frac_required(crtc_state)) { + multiplier_m = 1001; + multiplier_n = 1000; + } + + crtc_state->cmrr.cmrr_n = DIV_ROUND_UP(desired_refresh_rate * + adjusted_mode->crtc_htotal * multiplier_n, multiplier_m) * multiplier_n; + vtotal = DIV_ROUND_UP(actual_pixel_rate * multiplier_n, crtc_state->cmrr.cmrr_n); + adjusted_pixel_rate = actual_pixel_rate * multiplier_m; + crtc_state->cmrr.cmrr_m = do_div(adjusted_pixel_rate, crtc_state->cmrr.cmrr_n); + + return vtotal; +} + void intel_vrr_compute_config(struct intel_crtc_state *crtc_state, struct drm_connector_state *conn_state) @@ -149,6 +195,22 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, crtc_state->vrr.flipline = crtc_state->vrr.vmin + 1; + /* + * When panel is VRR capable and userspace has + * not enabled adaptive sync mode then Fixed Average + * Vtotal mode should be enabled. + */ + if (crtc_state->uapi.vrr_enabled) { + crtc_state->vrr.enable = true; + crtc_state->mode_flags |= I915_MODE_FLAG_VRR; + } else if (HAS_CMRR(i915)) { + crtc_state->cmrr.enable = true; + crtc_state->vrr.vmax = cmrr_get_vtotal(crtc_state); + crtc_state->vrr.vmin = crtc_state->vrr.vmax; + crtc_state->vrr.flipline = crtc_state->vrr.vmin; + crtc_state->mode_flags |= I915_MODE_FLAG_VRR; + } + /* * For XE_LPD+, we use guardband and pipeline override * is deprecated. @@ -161,11 +223,6 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, min(255, crtc_state->vrr.vmin - adjusted_mode->crtc_vblank_start - crtc_state->framestart_delay - 1); } - - if (crtc_state->uapi.vrr_enabled) { - crtc_state->vrr.enable = true; - crtc_state->mode_flags |= I915_MODE_FLAG_VRR; - } } static u32 trans_vrr_ctl(const struct intel_crtc_state *crtc_state) @@ -292,7 +349,14 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state) trans_vrr_ctl = intel_de_read(dev_priv, TRANS_VRR_CTL(cpu_transcoder)); - crtc_state->vrr.enable = trans_vrr_ctl & VRR_CTL_VRR_ENABLE; + if (HAS_CMRR(dev_priv)) { + crtc_state->cmrr.enable = (trans_vrr_ctl & VRR_CTL_CMRR_ENABLE) && + (trans_vrr_ctl & VRR_CTL_VRR_ENABLE); + crtc_state->vrr.enable = trans_vrr_ctl & VRR_CTL_VRR_ENABLE && + !(trans_vrr_ctl & VRR_CTL_CMRR_ENABLE); + } else { + crtc_state->vrr.enable = trans_vrr_ctl & VRR_CTL_VRR_ENABLE; + } if (crtc_state->cmrr.enable) { crtc_state->cmrr.cmrr_n =