From patchwork Thu Apr 23 07:58:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislav Lisovskiy X-Patchwork-Id: 11505239 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0072492A for ; Thu, 23 Apr 2020 08:02:39 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id DC52F20736 for ; Thu, 23 Apr 2020 08:02:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC52F20736 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8B64E6E3FC; Thu, 23 Apr 2020 08:02:37 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 07D7E6E35D for ; Thu, 23 Apr 2020 08:02:25 +0000 (UTC) IronPort-SDR: +SDDh1VZeMaH3IiSBFgp26R4eB85IzKy52dZlPT+xhSrRgXAt0+PbFPXW3EXIx2fhD9SBpBDRn BKiZP8gvytjw== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Apr 2020 01:02:25 -0700 IronPort-SDR: SvsH/8Es+cfdoRHame6fo1r3pvG9SMYSarZUVuAig/oSS1iA8Qj8cP5iW+FgiTUqQckKwkirNC 42u+rTB30+4A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,306,1583222400"; d="scan'208";a="259344445" Received: from unknown (HELO slisovsk-Lenovo-ideapad-720S-13IKB.fi.intel.com) ([10.237.72.89]) by orsmga006.jf.intel.com with ESMTP; 23 Apr 2020 01:02:24 -0700 From: Stanislav Lisovskiy To: intel-gfx@lists.freedesktop.org Date: Thu, 23 Apr 2020 10:58:58 +0300 Message-Id: <20200423075902.21892-6-stanislav.lisovskiy@intel.com> X-Mailer: git-send-email 2.24.1.485.gad05a3d8e5 In-Reply-To: <20200423075902.21892-1-stanislav.lisovskiy@intel.com> References: <20200423075902.21892-1-stanislav.lisovskiy@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v26 5/9] drm/i915: Add TGL+ SAGV support 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Starting from TGL we need to have a separate wm0 values for SAGV and non-SAGV which affects how calculations are done. v2: Remove long lines v3: Removed COLOR_PLANE enum references v4, v5: Fixed rebase conflict Signed-off-by: Stanislav Lisovskiy --- drivers/gpu/drm/i915/display/intel_display.c | 8 +- .../drm/i915/display/intel_display_types.h | 3 + drivers/gpu/drm/i915/intel_pm.c | 128 +++++++++++++++++- 3 files changed, 130 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index adb08a00bb57..0380a42b1d41 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -13948,7 +13948,9 @@ static void verify_wm_state(struct intel_crtc *crtc, /* Watermarks */ for (level = 0; level <= max_level; level++) { if (skl_wm_level_equals(&hw_plane_wm->wm[level], - &sw_plane_wm->wm[level])) + &sw_plane_wm->wm[level]) || + (level == 0 && skl_wm_level_equals(&hw_plane_wm->wm[level], + &sw_plane_wm->sagv_wm0))) continue; drm_err(&dev_priv->drm, @@ -14003,7 +14005,9 @@ static void verify_wm_state(struct intel_crtc *crtc, /* Watermarks */ for (level = 0; level <= max_level; level++) { if (skl_wm_level_equals(&hw_plane_wm->wm[level], - &sw_plane_wm->wm[level])) + &sw_plane_wm->wm[level]) || + (level == 0 && skl_wm_level_equals(&hw_plane_wm->wm[level], + &sw_plane_wm->sagv_wm0))) continue; drm_err(&dev_priv->drm, diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index ba8c08145c88..23a425e565a8 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -688,11 +688,14 @@ struct skl_plane_wm { struct skl_wm_level wm[8]; struct skl_wm_level uv_wm[8]; struct skl_wm_level trans_wm; + struct skl_wm_level sagv_wm0; + struct skl_wm_level uv_sagv_wm0; bool is_planar; }; struct skl_pipe_wm { struct skl_plane_wm planes[I915_MAX_PLANES]; + bool can_sagv; }; enum vlv_wm_level { diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 059bc312c9de..eeee4707d672 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3871,6 +3871,9 @@ static bool icl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state) return intel_crtc_can_enable_sagv(crtc_state); } +static bool +tgl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state); + bool intel_can_enable_sagv(const struct intel_bw_state *bw_state) { return bw_state->pipe_sagv_reject == 0; @@ -3881,7 +3884,7 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state) struct drm_i915_private *dev_priv = to_i915(state->base.dev); int ret; struct intel_crtc *crtc; - const struct intel_crtc_state *new_crtc_state; + struct intel_crtc_state *new_crtc_state; struct intel_bw_state *new_bw_state = NULL; const struct intel_bw_state *old_bw_state = NULL; int i; @@ -3903,7 +3906,9 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state) active_pipes_calculated = true; } - if (INTEL_GEN(dev_priv) >= 11) + if (INTEL_GEN(dev_priv) >= 12) + can_sagv = tgl_crtc_can_enable_sagv(new_crtc_state); + else if (INTEL_GEN(dev_priv) >= 11) can_sagv = icl_crtc_can_enable_sagv(new_crtc_state); else can_sagv = skl_crtc_can_enable_sagv(new_crtc_state); @@ -3917,6 +3922,24 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state) if (!new_bw_state) return 0; + for_each_new_intel_crtc_in_state(state, crtc, + new_crtc_state, i) { + struct skl_pipe_wm *pipe_wm = &new_crtc_state->wm.skl.optimal; + + /* + * Due to drm limitation at commit state, when + * changes are written the whole atomic state is + * zeroed away => which prevents from using it, + * so just sticking it into pipe wm state for + * keeping it simple - anyway this is related to wm. + * Proper way in ideal universe would be of course not + * to lose parent atomic state object from child crtc_state, + * and stick to OOP programming principles, which had been + * scientifically proven to work. + */ + pipe_wm->can_sagv = intel_can_enable_sagv(new_bw_state); + } + if (intel_can_enable_sagv(new_bw_state) != intel_can_enable_sagv(old_bw_state)) { ret = intel_atomic_lock_global_state(&new_bw_state->base); if (ret) @@ -4656,12 +4679,39 @@ skl_plane_wm_level(const struct intel_crtc_state *crtc_state, int level, int color_plane) { - const struct skl_plane_wm *wm = - &crtc_state->wm.skl.optimal.planes[plane_id]; + const struct skl_pipe_wm *pipe_wm = &crtc_state->wm.skl.optimal; + const struct skl_plane_wm *wm = &pipe_wm->planes[plane_id]; + + if (!level) { + if (pipe_wm->can_sagv) + return color_plane == 0 ? &wm->sagv_wm0 : &wm->uv_sagv_wm0; + } return color_plane == 0 ? &wm->wm[level] : &wm->uv_wm[level]; } +static bool +tgl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + enum plane_id plane_id; + + if (!crtc_state->hw.active) + return true; + + for_each_plane_id_on_crtc(crtc, plane_id) { + const struct skl_ddb_entry *plane_alloc = + &crtc_state->wm.skl.plane_ddb_y[plane_id]; + const struct skl_plane_wm *wm = + &crtc_state->wm.skl.optimal.planes[plane_id]; + + if (skl_ddb_entry_size(plane_alloc) < wm->sagv_wm0.min_ddb_alloc) + return false; + } + + return true; +} + static int skl_allocate_pipe_ddb(struct intel_crtc_state *crtc_state) { @@ -5243,10 +5293,17 @@ static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state, static void skl_compute_wm_levels(const struct intel_crtc_state *crtc_state, const struct skl_wm_params *wm_params, - struct skl_wm_level *levels) + struct skl_plane_wm *plane_wm, + int color_plane) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); int level, max_level = ilk_wm_max_level(dev_priv); + /* + * Check which kind of plane is it and based on that calculate + * correspondent WM levels. + */ + struct skl_wm_level *levels = color_plane == 1 ? + plane_wm->uv_wm : plane_wm->wm; struct skl_wm_level *result_prev = &levels[0]; for (level = 0; level <= max_level; level++) { @@ -5260,6 +5317,40 @@ skl_compute_wm_levels(const struct intel_crtc_state *crtc_state, } } +static void skl_compute_sagv_wm(const struct intel_crtc_state *crtc_state, + const struct skl_wm_params *wm_params, + struct skl_plane_wm *plane_wm, + int color_plane) +{ + struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); + struct skl_wm_level *sagv_wm = color_plane == 1 ? + &plane_wm->uv_sagv_wm0 : &plane_wm->sagv_wm0; + struct skl_wm_level *levels = color_plane == 1 ? + plane_wm->uv_wm : plane_wm->wm; + + /* + * For Gen12 if it is an L0 we need to also + * consider sagv_block_time when calculating + * L0 watermark - we will need that when making + * a decision whether enable SAGV or not. + * For older gens we agreed to copy L0 value for + * compatibility. + */ + if ((INTEL_GEN(dev_priv) >= 12)) { + u32 latency = dev_priv->wm.skl_latency[0]; + + latency += dev_priv->sagv_block_time_us; + skl_compute_plane_wm(crtc_state, 0, latency, + wm_params, &levels[0], + sagv_wm); + DRM_DEBUG_KMS("%d L0 blocks required for SAGV vs %d for non-SAGV\n", + sagv_wm->min_ddb_alloc, levels[0].min_ddb_alloc); + } else { + /* Since all members are POD */ + *sagv_wm = levels[0]; + } +} + static void skl_compute_transition_wm(const struct intel_crtc_state *crtc_state, const struct skl_wm_params *wp, struct skl_plane_wm *wm) @@ -5340,7 +5431,8 @@ static int skl_build_plane_wm_single(struct intel_crtc_state *crtc_state, if (ret) return ret; - skl_compute_wm_levels(crtc_state, &wm_params, wm->wm); + skl_compute_wm_levels(crtc_state, &wm_params, wm, 0); + skl_compute_sagv_wm(crtc_state, &wm_params, wm, 0); skl_compute_transition_wm(crtc_state, &wm_params, wm); return 0; @@ -5362,7 +5454,8 @@ static int skl_build_plane_wm_uv(struct intel_crtc_state *crtc_state, if (ret) return ret; - skl_compute_wm_levels(crtc_state, &wm_params, wm->uv_wm); + skl_compute_wm_levels(crtc_state, &wm_params, wm, 1); + skl_compute_sagv_wm(crtc_state, &wm_params, wm, 1); return 0; } @@ -5747,6 +5840,12 @@ skl_print_wm_changes(struct intel_atomic_state *state) enast(new_wm->wm[7].ignore_lines), new_wm->wm[7].plane_res_l, enast(new_wm->trans_wm.ignore_lines), new_wm->trans_wm.plane_res_l); + drm_dbg_kms(&dev_priv->drm, + "[PLANE:%d:%s] sagv wm0 lines %4d -> %4d\n", + plane->base.base.id, plane->base.name, + old_wm->sagv_wm0.plane_res_l, + new_wm->sagv_wm0.plane_res_l); + drm_dbg_kms(&dev_priv->drm, "[PLANE:%d:%s] blocks %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d" " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d\n", @@ -5762,6 +5861,12 @@ skl_print_wm_changes(struct intel_atomic_state *state) new_wm->wm[6].plane_res_b, new_wm->wm[7].plane_res_b, new_wm->trans_wm.plane_res_b); + drm_dbg_kms(&dev_priv->drm, + "[PLANE:%d:%s] sagv wm0 blocks %4d -> %4d\n", + plane->base.base.id, plane->base.name, + old_wm->sagv_wm0.plane_res_b, + new_wm->sagv_wm0.plane_res_b); + drm_dbg_kms(&dev_priv->drm, "[PLANE:%d:%s] min_ddb %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d" " -> %4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d,%4d\n", @@ -5776,6 +5881,12 @@ skl_print_wm_changes(struct intel_atomic_state *state) new_wm->wm[4].min_ddb_alloc, new_wm->wm[5].min_ddb_alloc, new_wm->wm[6].min_ddb_alloc, new_wm->wm[7].min_ddb_alloc, new_wm->trans_wm.min_ddb_alloc); + + drm_dbg_kms(&dev_priv->drm, + "[PLANE:%d:%s] sagv wm0 min ddb %4d -> %4d\n", + plane->base.base.id, plane->base.name, + old_wm->sagv_wm0.min_ddb_alloc, + new_wm->sagv_wm0.min_ddb_alloc); } } } @@ -6068,6 +6179,9 @@ void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc, skl_wm_level_from_reg_val(val, &wm->wm[level]); } + memcpy(&wm->sagv_wm0, &wm->wm[0], + sizeof(struct skl_wm_level)); + if (plane_id != PLANE_CURSOR) val = I915_READ(PLANE_WM_TRANS(pipe, plane_id)); else