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Mon, 7 Jun 2021 08:47:56 +0200 (CEST) Subject: Re: [PATCH 4/4] drm/i915/display: Add handling for new "active bpc" property To: =?UTF-8?B?VmlsbGUgU3lyasOkbMOk?= References: <20210604171723.10276-1-wse@tuxedocomputers.com> <20210604171723.10276-5-wse@tuxedocomputers.com> From: Werner Sembach Message-ID: Date: Mon, 7 Jun 2021 08:47:55 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sunpeng.li@amd.com, intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, airlied@linux.ie, amd-gfx@lists.freedesktop.org, tzimmermann@suse.de, rodrigo.vivi@intel.com, alexander.deucher@amd.com, christian.koenig@amd.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Am 04.06.21 um 19:30 schrieb Ville Syrjälä: > On Fri, Jun 04, 2021 at 07:17:23PM +0200, Werner Sembach wrote: >> This commits implements the "active bpc" drm property for the Intel GPU driver. >> >> Signed-off-by: Werner Sembach >> --- >> drivers/gpu/drm/i915/display/intel_display.c | 13 +++++++++++++ >> drivers/gpu/drm/i915/display/intel_dp.c | 8 ++++++-- >> drivers/gpu/drm/i915/display/intel_dp_mst.c | 4 +++- >> drivers/gpu/drm/i915/display/intel_hdmi.c | 4 +++- >> 4 files changed, 25 insertions(+), 4 deletions(-) >> >> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c >> index 64e9107d70f7..f7898d9d7438 100644 >> --- a/drivers/gpu/drm/i915/display/intel_display.c >> +++ b/drivers/gpu/drm/i915/display/intel_display.c >> @@ -10164,6 +10164,8 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) >> struct drm_i915_private *dev_priv = to_i915(dev); >> struct intel_crtc_state *new_crtc_state, *old_crtc_state; >> struct intel_crtc *crtc; >> + struct drm_connector *connector; >> + struct drm_connector_state *new_conn_state; >> u64 put_domains[I915_MAX_PIPES] = {}; >> intel_wakeref_t wakeref = 0; >> int i; >> @@ -10324,6 +10326,17 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) >> } >> intel_runtime_pm_put(&dev_priv->runtime_pm, state->wakeref); >> >> + /* Extract information from crtc to communicate it to userspace as connector properties */ >> + for_each_new_connector_in_state(&state->base, connector, new_conn_state, i) { >> + struct drm_crtc *crtc = new_conn_state->crtc; >> + if (crtc) { >> + new_crtc_state = to_intel_crtc_state(drm_atomic_get_new_crtc_state(&state->base, crtc)); > intel_atomic_get_new_crtc_state() Thanks, will use that. > >> + new_conn_state->active_bpc = new_crtc_state->pipe_bpp / 3; >> + } >> + else >> + new_conn_state->active_bpc = 0; >> + } > This also seems too late. I think the whole thing should be > done somewhere around the normal swap_state() stuff. Ok, will look into it. > >> + >> /* >> * Defer the cleanup of the old state to a separate worker to not >> * impede the current task (userspace for blocking modesets) that >> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c >> index 642c60f3d9b1..67826ba976ed 100644 >> --- a/drivers/gpu/drm/i915/display/intel_dp.c >> +++ b/drivers/gpu/drm/i915/display/intel_dp.c >> @@ -4671,10 +4671,14 @@ intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connect >> intel_attach_force_audio_property(connector); >> >> intel_attach_broadcast_rgb_property(connector); >> - if (HAS_GMCH(dev_priv)) >> + if (HAS_GMCH(dev_priv)) { >> drm_connector_attach_max_bpc_property(connector, 6, 10); >> - else if (DISPLAY_VER(dev_priv) >= 5) >> + drm_connector_attach_active_bpc_property(connector, 6, 10); >> + } >> + else if (DISPLAY_VER(dev_priv) >= 5) { >> drm_connector_attach_max_bpc_property(connector, 6, 12); >> + drm_connector_attach_active_bpc_property(connector, 6, 12); >> + } >> >> /* Register HDMI colorspace for case of lspcon */ >> if (intel_bios_is_lspcon_present(dev_priv, port)) { >> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c >> index 2daa3f67791e..5a1869dc2210 100644 >> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c >> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c >> @@ -844,8 +844,10 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo >> */ >> connector->max_bpc_property = >> intel_dp->attached_connector->base.max_bpc_property; >> - if (connector->max_bpc_property) >> + if (connector->max_bpc_property) { >> drm_connector_attach_max_bpc_property(connector, 6, 12); >> + drm_connector_attach_active_bpc_property(connector, 6, 12); >> + } >> >> return connector; >> >> diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c >> index d69f0a6dc26d..8af78b27b6ce 100644 >> --- a/drivers/gpu/drm/i915/display/intel_hdmi.c >> +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c >> @@ -2463,8 +2463,10 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c >> drm_object_attach_property(&connector->base, >> connector->dev->mode_config.hdr_output_metadata_property, 0); >> >> - if (!HAS_GMCH(dev_priv)) >> + if (!HAS_GMCH(dev_priv)) { >> drm_connector_attach_max_bpc_property(connector, 8, 12); >> + drm_connector_attach_active_bpc_property(connector, 8, 12); >> + } >> } >> >> /* >> -- >> 2.25.1