From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 136C9C433F5 for ; Tue, 26 Oct 2021 19:26:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EA30D60EFF for ; Tue, 26 Oct 2021 19:26:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238723AbhJZT2Q (ORCPT ); Tue, 26 Oct 2021 15:28:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238693AbhJZT2H (ORCPT ); Tue, 26 Oct 2021 15:28:07 -0400 Received: from mail-lj1-x22a.google.com (mail-lj1-x22a.google.com [IPv6:2a00:1450:4864:20::22a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3251C061243 for ; Tue, 26 Oct 2021 12:25:41 -0700 (PDT) Received: by mail-lj1-x22a.google.com with SMTP id o26so661615ljj.2 for ; Tue, 26 Oct 2021 12:25:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Q1sNTRmvhkEvI5FmK7nviifWrglvInEpclo8SE5hIzU=; b=XTEoYlhIxpLauW3yVyQo5zD2pd/8FrRgQrzGIBZ73zwRopYZHnyTvFcIxF4HOoEziX 5O+546mkHYXs4TvIrvDl923VXdEP3R7JoH5Eb/+w59Dhia016p7DmkZB8SuArIb6y3Lz CMI6CBn3F7gw3ny9iBVtzyj6O2WRN2ZFKAz4w= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Q1sNTRmvhkEvI5FmK7nviifWrglvInEpclo8SE5hIzU=; b=dpvbEPelcp0E/dnWUDoZb4FF67xS5/xhhbTZanZ1TqJP5HAQeOYSMLngcP7lWrYsmk ylpLJEhMjfjCtM+AQj5dci/AqpptOm5QF+MbiGBcRH55W0+AXSAvvJKIied1Sah3bCg3 SAmOW+agyseuSMWNRHs+tE7llf3uJa4CwUjjNxDiNnO0W2kZcj2TNixpjQtHHFsUnclS wJfi+zLeIS6Fy/DP2mLwbcQl7AmA1gsyJdJAbN3gNvQJkFxJMDtSKYODoyo0erVvQnm8 NmdfXneCG79IyQDAA6jDP01jWPBAjVUcZl8P9vwjarHHQvjSrJY+SqqafbHUELL/D4mb kPuw== X-Gm-Message-State: AOAM533qgKSUqkcokXddv+AmhULZVzAExUcKhp++PyzA2f+ECMAHGDsX A1kv2MN1x6jta7XJ6bSOHYpfIggtui1hj7AJh0D9wQ== X-Google-Smtp-Source: ABdhPJxgYi3vwo8/SxRb0tGKPJyV3KuMYcas/eYkHLrPxEizrjdvqbUCJ8W3LjSPCDB/SKaif2yYSmM2dggSUjb/6hc= X-Received: by 2002:a05:651c:507:: with SMTP id o7mr26677802ljp.356.1635276340088; Tue, 26 Oct 2021 12:25:40 -0700 (PDT) MIME-Version: 1.0 References: <20210929194012.3433306-1-markyacoub@chromium.org> <20211013181228.1578201-1-markyacoub@chromium.org> <20211026012628.GG2515@art_vandelay> In-Reply-To: <20211026012628.GG2515@art_vandelay> From: Mark Yacoub Date: Tue, 26 Oct 2021 15:25:29 -0400 Message-ID: Subject: Re: [Intel-gfx] [PATCH 1/2] drm: Add Gamma and Degamma LUT sizes props to drm_crtc to validate. To: Sean Paul Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, seanpaul@chromium.org, harry.wentland@amd.com, Mark Yacoub , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Matthias Brugger , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 25, 2021 at 9:26 PM Sean Paul wrote: > > On Wed, Oct 13, 2021 at 02:12:20PM -0400, Mark Yacoub wrote: > > From: Mark Yacoub > > > > [Why] > > 1. drm_atomic_helper_check doesn't check for the LUT sizes of either Gamma > > or Degamma props in the new CRTC state, allowing any invalid size to > > be passed on. > > 2. Each driver has its own LUT size, which could also be different for > > legacy users. > > > > [How] > > 1. Create |degamma_lut_size| and |gamma_lut_size| to save the LUT sizes > > assigned by the driver when it's initializing its color and CTM > > management. > > 2. Create drm_atomic_helper_check_crtc which is called by > > drm_atomic_helper_check to check the LUT sizes saved in drm_crtc that > > they match the sizes in the new CRTC state. > > 3. Rename older lut checks that test for the color channels to indicate > > it's a channel check. It's not included in drm_atomic_helper_check_crtc > > as it's hardware specific and is to be called by the driver. > > 4. As the LUT size check now happens in drm_atomic_helper_check, remove > > the lut check in intel_color.c > > I'd probably split the rename out from the crtc check since they're only > tangentially related. done. > > > > > Fixes: igt@kms_color@pipe-A-invalid-gamma-lut-sizes on MTK > > Tested on Zork(amdgpu) and Jacuzzi(mediatek), volteer(TGL) > > > > v1: > > 1. Fix typos > > 2. Remove the LUT size check from intel driver > > 3. Rename old LUT check to indicate it's a channel change > > > > Signed-off-by: Mark Yacoub > > --- > > drivers/gpu/drm/drm_atomic_helper.c | 60 ++++++++++++++++++++++ > > drivers/gpu/drm/drm_color_mgmt.c | 14 ++--- > > drivers/gpu/drm/i915/display/intel_color.c | 14 ++--- > > include/drm/drm_atomic_helper.h | 1 + > > include/drm/drm_color_mgmt.h | 7 +-- > > include/drm/drm_crtc.h | 11 ++++ > > 6 files changed, 89 insertions(+), 18 deletions(-) > > > > diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c > > index bc3487964fb5e..5feb2ad0209c3 100644 > > --- a/drivers/gpu/drm/drm_atomic_helper.c > > +++ b/drivers/gpu/drm/drm_atomic_helper.c > > @@ -929,6 +929,62 @@ drm_atomic_helper_check_planes(struct drm_device *dev, > > } > > EXPORT_SYMBOL(drm_atomic_helper_check_planes); > > > > +/** > > + * drm_atomic_helper_check_crtcs - validate state object for CRTC changes > > + * @state: the driver state object > > + * > > + * Check the CRTC state object such as the Gamma/Degamma LUT sizes if the new > > + * state holds them. > > + * > > + * RETURNS: > > + * Zero for success or -errno > > + */ > > +int drm_atomic_helper_check_crtcs(struct drm_atomic_state *state) > > +{ > > + struct drm_crtc *crtc; > > + struct drm_crtc_state *new_crtc_state; > > + int i; > > + > > + for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) { > > + if (new_crtc_state->color_mgmt_changed && > > + new_crtc_state->gamma_lut) { > > + uint64_t supported_lut_size = crtc->gamma_lut_size; > > + uint32_t supported_legacy_lut_size = crtc->gamma_size; > > + uint32_t new_state_lut_size = > > + drm_color_lut_size(new_crtc_state->gamma_lut); > > + > > + if (new_state_lut_size != supported_lut_size && > > + new_state_lut_size != supported_legacy_lut_size) { > > + drm_dbg_state( > > + state->dev, > > + "Invalid Gamma LUT size. Should be %u (or %u for legacy) but got %u.\n", > > + supported_lut_size, > > + supported_legacy_lut_size, > > + new_state_lut_size); > > + return -EINVAL; > > + } > > + } > > + > > + if (new_crtc_state->color_mgmt_changed && > > + new_crtc_state->degamma_lut) { > > + uint32_t new_state_lut_size = > > + drm_color_lut_size(new_crtc_state->degamma_lut); > > + uint64_t supported_lut_size = crtc->degamma_lut_size; > > + > > + if (new_state_lut_size != supported_lut_size) { > > + drm_dbg_state( > > + state->dev, > > + "Invalid Degamma LUT size. Should be %u but got %u.\n", > > + supported_lut_size, new_state_lut_size); > > + return -EINVAL; > > + } > > + } > > + } > > + > > + return 0; > > +} > > +EXPORT_SYMBOL(drm_atomic_helper_check_crtcs); > > + > > /** > > * drm_atomic_helper_check - validate state object > > * @dev: DRM device > > @@ -974,6 +1030,10 @@ int drm_atomic_helper_check(struct drm_device *dev, > > if (ret) > > return ret; > > > > + ret = drm_atomic_helper_check_crtcs(state); > > + if (ret) > > + return ret; > > + > > if (state->legacy_cursor_update) > > state->async_update = !drm_atomic_helper_async_check(dev, state); > > > > diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c > > index bb14f488c8f6c..e5b820ce823bf 100644 > > --- a/drivers/gpu/drm/drm_color_mgmt.c > > +++ b/drivers/gpu/drm/drm_color_mgmt.c > > @@ -166,6 +166,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, > > struct drm_mode_config *config = &dev->mode_config; > > > > if (degamma_lut_size) { > > + crtc->degamma_lut_size = degamma_lut_size; > > drm_object_attach_property(&crtc->base, > > config->degamma_lut_property, 0); > > drm_object_attach_property(&crtc->base, > > @@ -178,6 +179,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, > > config->ctm_property, 0); > > > > if (gamma_lut_size) { > > + crtc->gamma_lut_size = gamma_lut_size; > > drm_object_attach_property(&crtc->base, > > config->gamma_lut_property, 0); > > drm_object_attach_property(&crtc->base, > > @@ -585,17 +587,17 @@ int drm_plane_create_color_properties(struct drm_plane *plane, > > EXPORT_SYMBOL(drm_plane_create_color_properties); > > > > /** > > - * drm_color_lut_check - check validity of lookup table > > + * drm_color_lut_channels_check - check validity of the channels in the lookup table > > * @lut: property blob containing LUT to check > > * @tests: bitmask of tests to run > > * > > - * Helper to check whether a userspace-provided lookup table is valid and > > - * satisfies hardware requirements. Drivers pass a bitmask indicating which of > > - * the tests in &drm_color_lut_tests should be performed. > > + * Helper to check whether each color channel of userspace-provided lookup table is valid and > > + * satisfies hardware requirements. Drivers pass a bitmask indicating which of in > > + * &drm_color_lut_channels_tests should be performed. > > * > > * Returns 0 on success, -EINVAL on failure. > > */ > > -int drm_color_lut_check(const struct drm_property_blob *lut, u32 tests) > > +int drm_color_lut_channels_check(const struct drm_property_blob *lut, u32 tests) > > { > > const struct drm_color_lut *entry; > > int i; > > @@ -625,4 +627,4 @@ int drm_color_lut_check(const struct drm_property_blob *lut, u32 tests) > > > > return 0; > > } > > -EXPORT_SYMBOL(drm_color_lut_check); > > +EXPORT_SYMBOL(drm_color_lut_channels_check); > > diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c > > index dab892d2251ba..a308fe52746ac 100644 > > --- a/drivers/gpu/drm/i915/display/intel_color.c > > +++ b/drivers/gpu/drm/i915/display/intel_color.c > > @@ -1285,7 +1285,7 @@ static int check_luts(const struct intel_crtc_state *crtc_state) > > const struct drm_property_blob *gamma_lut = crtc_state->hw.gamma_lut; > > const struct drm_property_blob *degamma_lut = crtc_state->hw.degamma_lut; > > int gamma_length, degamma_length; > > - u32 gamma_tests, degamma_tests; > > + u32 gamma_channels_tests, degamma_channels_tests; > > > > /* Always allow legacy gamma LUT with no further checking. */ > > if (crtc_state_is_legacy_gamma(crtc_state)) > > @@ -1300,15 +1300,11 @@ static int check_luts(const struct intel_crtc_state *crtc_state) > > > > degamma_length = INTEL_INFO(dev_priv)->color.degamma_lut_size; > > gamma_length = INTEL_INFO(dev_priv)->color.gamma_lut_size; > > - degamma_tests = INTEL_INFO(dev_priv)->color.degamma_lut_tests; > > - gamma_tests = INTEL_INFO(dev_priv)->color.gamma_lut_tests; > > + degamma_channels_tests = INTEL_INFO(dev_priv)->color.degamma_lut_tests; > > + gamma_channels_tests = INTEL_INFO(dev_priv)->color.gamma_lut_tests; > > > > - if (check_lut_size(degamma_lut, degamma_length) || > > - check_lut_size(gamma_lut, gamma_length)) > > - return -EINVAL; > > Can you remove check_lut_size() now? > replace by drm_ check_lut_size still gotta keep it cause you reach this both using set prop, not necessarily through an atomic commit only. > > - > > - if (drm_color_lut_check(degamma_lut, degamma_tests) || > > - drm_color_lut_check(gamma_lut, gamma_tests)) > > + if (drm_color_lut_channels_check(degamma_lut, degamma_channels_tests) || > > + drm_color_lut_channels_check(gamma_lut, gamma_channels_tests)) > > return -EINVAL; > > > > return 0; > > diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h > > index 4045e2507e11c..a22d32a7a8719 100644 > > --- a/include/drm/drm_atomic_helper.h > > +++ b/include/drm/drm_atomic_helper.h > > @@ -38,6 +38,7 @@ struct drm_atomic_state; > > struct drm_private_obj; > > struct drm_private_state; > > > > +int drm_atomic_helper_check_crtcs(struct drm_atomic_state *state); > > int drm_atomic_helper_check_modeset(struct drm_device *dev, > > struct drm_atomic_state *state); > > int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, > > diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h > > index 81c298488b0c8..cb1bf361ad3e3 100644 > > --- a/include/drm/drm_color_mgmt.h > > +++ b/include/drm/drm_color_mgmt.h > > @@ -94,12 +94,12 @@ int drm_plane_create_color_properties(struct drm_plane *plane, > > enum drm_color_range default_range); > > > > /** > > - * enum drm_color_lut_tests - hw-specific LUT tests to perform > > + * enum drm_color_lut_channels_tests - hw-specific LUT tests to perform > > * > > * The drm_color_lut_check() function takes a bitmask of the values here to > > * determine which tests to apply to a userspace-provided LUT. > > */ > > -enum drm_color_lut_tests { > > +enum drm_color_lut_channels_tests { > > /** > > * @DRM_COLOR_LUT_EQUAL_CHANNELS: > > * > > @@ -119,5 +119,6 @@ enum drm_color_lut_tests { > > DRM_COLOR_LUT_NON_DECREASING = BIT(1), > > }; > > > > -int drm_color_lut_check(const struct drm_property_blob *lut, u32 tests); > > +int drm_color_lut_channels_check(const struct drm_property_blob *lut, > > + u32 tests); > > #endif > > diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h > > index 2deb15d7e1610..cabd3ef1a6e32 100644 > > --- a/include/drm/drm_crtc.h > > +++ b/include/drm/drm_crtc.h > > @@ -1072,6 +1072,17 @@ struct drm_crtc { > > /** @funcs: CRTC control functions */ > > const struct drm_crtc_funcs *funcs; > > > > + /** > > + * @degamma_lut_size: Size of degamma LUT. > > + */ > > + uint32_t degamma_lut_size; > > + > > + /** > > + * @gamma_lut_size: Size of Gamma LUT. Not used by legacy userspace such as > > + * X, which doesn't support large lut sizes. > > + */ > > + uint32_t gamma_lut_size; > > + > > /** > > * @gamma_size: Size of legacy gamma ramp reported to userspace. Set up > > * by calling drm_mode_crtc_set_gamma_size(). > > -- > > 2.33.0.882.g93a45727a2-goog > > > > -- > Sean Paul, Software Engineer, Google / Chromium OS From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38330C433F5 for ; Tue, 26 Oct 2021 19:25:57 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 F28B160C49 for ; Tue, 26 Oct 2021 19:25:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org F28B160C49 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ZKorRMuQWMcj2Td20x1db3mEyjsyHstUd6wJLcTDC6s=; b=YcwA4U82bdeqR+ tU7QCHvdztEWXEzPBLEorX5mpq0LDX1LNFK7sddOUhoElFJhler0mvZKvscy4JY1v2EYA6pGM3bOz OBwa4F0a7vugVEIJHedSOqpBUSMuCmBHvqQX+7uuCPgnzXVZL904QzpsxfTUPsoJFJFKOsi9Krs3V OorhFQijOqGjrGXOOrgL0K1LpxXEouPshkY2UsFDB0HGc9rXaYqlOw5uJqLyahuNgJRkQF9qVJSp9 in/XIOjsjdKAm5K8UZ7ZD82gQZzEdQyPmwdfBlH59J5bDf2f00reuortIHYfmc2OotvmIeHeehFXq RIWD9K41wnuXIlciJ9IA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mfS4u-002tbk-CX; Tue, 26 Oct 2021 19:25:44 +0000 Received: from mail-lj1-x231.google.com ([2a00:1450:4864:20::231]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mfS4r-002tZl-KW for linux-mediatek@lists.infradead.org; Tue, 26 Oct 2021 19:25:43 +0000 Received: by mail-lj1-x231.google.com with SMTP id n7so629281ljp.5 for ; Tue, 26 Oct 2021 12:25:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Q1sNTRmvhkEvI5FmK7nviifWrglvInEpclo8SE5hIzU=; b=XTEoYlhIxpLauW3yVyQo5zD2pd/8FrRgQrzGIBZ73zwRopYZHnyTvFcIxF4HOoEziX 5O+546mkHYXs4TvIrvDl923VXdEP3R7JoH5Eb/+w59Dhia016p7DmkZB8SuArIb6y3Lz CMI6CBn3F7gw3ny9iBVtzyj6O2WRN2ZFKAz4w= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Q1sNTRmvhkEvI5FmK7nviifWrglvInEpclo8SE5hIzU=; b=VNz7SnNeo/sz5sO8pZHF+/GP2XVLoquR+/WHvssR7hAxLtLOJ1Ij/Dg61ydHjPJ4XM Z/+BbXr+uzuIZYuB884bBbUgcBl3i37qP8AIbczI1tSauHuy7i1Sz6MiKTYvKWCzIFgs TT2dBoKn5q2LLGOI59ipsD17snqjGJdL43ghQeLSsz3DWTQPA8q6p8feN2++ropTiYe6 QHchjiVPN7NdgFjHLADT4/Utsgq2tO9SHuCa0AOmBNWiga3RfjBcdZ7F5LvW7yxjjsWW sQbGX+BfYnzWdKvOCopoCJ7piS31kjsEH90skg7yuzONe0z27PJ8HSVyJpS4v/OgivsO 4qKA== X-Gm-Message-State: AOAM532hvCG70i/RuYJynCS4YhBTr2Hm/h61S0yBt4cQCZZfvW6xa3pH mHYIgtZhOdwHVQOqiJKEskvBMMVCbvc5yjeup2jOzQ== X-Google-Smtp-Source: ABdhPJxgYi3vwo8/SxRb0tGKPJyV3KuMYcas/eYkHLrPxEizrjdvqbUCJ8W3LjSPCDB/SKaif2yYSmM2dggSUjb/6hc= X-Received: by 2002:a05:651c:507:: with SMTP id o7mr26677802ljp.356.1635276340088; Tue, 26 Oct 2021 12:25:40 -0700 (PDT) MIME-Version: 1.0 References: <20210929194012.3433306-1-markyacoub@chromium.org> <20211013181228.1578201-1-markyacoub@chromium.org> <20211026012628.GG2515@art_vandelay> In-Reply-To: <20211026012628.GG2515@art_vandelay> From: Mark Yacoub Date: Tue, 26 Oct 2021 15:25:29 -0400 Message-ID: Subject: Re: [Intel-gfx] [PATCH 1/2] drm: Add Gamma and Degamma LUT sizes props to drm_crtc to validate. To: Sean Paul Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, seanpaul@chromium.org, harry.wentland@amd.com, Mark Yacoub , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Matthias Brugger , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211026_122541_763278_0769F168 X-CRM114-Status: GOOD ( 42.90 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Mon, Oct 25, 2021 at 9:26 PM Sean Paul wrote: > > On Wed, Oct 13, 2021 at 02:12:20PM -0400, Mark Yacoub wrote: > > From: Mark Yacoub > > > > [Why] > > 1. drm_atomic_helper_check doesn't check for the LUT sizes of either Gamma > > or Degamma props in the new CRTC state, allowing any invalid size to > > be passed on. > > 2. Each driver has its own LUT size, which could also be different for > > legacy users. > > > > [How] > > 1. Create |degamma_lut_size| and |gamma_lut_size| to save the LUT sizes > > assigned by the driver when it's initializing its color and CTM > > management. > > 2. Create drm_atomic_helper_check_crtc which is called by > > drm_atomic_helper_check to check the LUT sizes saved in drm_crtc that > > they match the sizes in the new CRTC state. > > 3. Rename older lut checks that test for the color channels to indicate > > it's a channel check. It's not included in drm_atomic_helper_check_crtc > > as it's hardware specific and is to be called by the driver. > > 4. As the LUT size check now happens in drm_atomic_helper_check, remove > > the lut check in intel_color.c > > I'd probably split the rename out from the crtc check since they're only > tangentially related. done. > > > > > Fixes: igt@kms_color@pipe-A-invalid-gamma-lut-sizes on MTK > > Tested on Zork(amdgpu) and Jacuzzi(mediatek), volteer(TGL) > > > > v1: > > 1. Fix typos > > 2. Remove the LUT size check from intel driver > > 3. Rename old LUT check to indicate it's a channel change > > > > Signed-off-by: Mark Yacoub > > --- > > drivers/gpu/drm/drm_atomic_helper.c | 60 ++++++++++++++++++++++ > > drivers/gpu/drm/drm_color_mgmt.c | 14 ++--- > > drivers/gpu/drm/i915/display/intel_color.c | 14 ++--- > > include/drm/drm_atomic_helper.h | 1 + > > include/drm/drm_color_mgmt.h | 7 +-- > > include/drm/drm_crtc.h | 11 ++++ > > 6 files changed, 89 insertions(+), 18 deletions(-) > > > > diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c > > index bc3487964fb5e..5feb2ad0209c3 100644 > > --- a/drivers/gpu/drm/drm_atomic_helper.c > > +++ b/drivers/gpu/drm/drm_atomic_helper.c > > @@ -929,6 +929,62 @@ drm_atomic_helper_check_planes(struct drm_device *dev, > > } > > EXPORT_SYMBOL(drm_atomic_helper_check_planes); > > > > +/** > > + * drm_atomic_helper_check_crtcs - validate state object for CRTC changes > > + * @state: the driver state object > > + * > > + * Check the CRTC state object such as the Gamma/Degamma LUT sizes if the new > > + * state holds them. > > + * > > + * RETURNS: > > + * Zero for success or -errno > > + */ > > +int drm_atomic_helper_check_crtcs(struct drm_atomic_state *state) > > +{ > > + struct drm_crtc *crtc; > > + struct drm_crtc_state *new_crtc_state; > > + int i; > > + > > + for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) { > > + if (new_crtc_state->color_mgmt_changed && > > + new_crtc_state->gamma_lut) { > > + uint64_t supported_lut_size = crtc->gamma_lut_size; > > + uint32_t supported_legacy_lut_size = crtc->gamma_size; > > + uint32_t new_state_lut_size = > > + drm_color_lut_size(new_crtc_state->gamma_lut); > > + > > + if (new_state_lut_size != supported_lut_size && > > + new_state_lut_size != supported_legacy_lut_size) { > > + drm_dbg_state( > > + state->dev, > > + "Invalid Gamma LUT size. Should be %u (or %u for legacy) but got %u.\n", > > + supported_lut_size, > > + supported_legacy_lut_size, > > + new_state_lut_size); > > + return -EINVAL; > > + } > > + } > > + > > + if (new_crtc_state->color_mgmt_changed && > > + new_crtc_state->degamma_lut) { > > + uint32_t new_state_lut_size = > > + drm_color_lut_size(new_crtc_state->degamma_lut); > > + uint64_t supported_lut_size = crtc->degamma_lut_size; > > + > > + if (new_state_lut_size != supported_lut_size) { > > + drm_dbg_state( > > + state->dev, > > + "Invalid Degamma LUT size. Should be %u but got %u.\n", > > + supported_lut_size, new_state_lut_size); > > + return -EINVAL; > > + } > > + } > > + } > > + > > + return 0; > > +} > > +EXPORT_SYMBOL(drm_atomic_helper_check_crtcs); > > + > > /** > > * drm_atomic_helper_check - validate state object > > * @dev: DRM device > > @@ -974,6 +1030,10 @@ int drm_atomic_helper_check(struct drm_device *dev, > > if (ret) > > return ret; > > > > + ret = drm_atomic_helper_check_crtcs(state); > > + if (ret) > > + return ret; > > + > > if (state->legacy_cursor_update) > > state->async_update = !drm_atomic_helper_async_check(dev, state); > > > > diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c > > index bb14f488c8f6c..e5b820ce823bf 100644 > > --- a/drivers/gpu/drm/drm_color_mgmt.c > > +++ b/drivers/gpu/drm/drm_color_mgmt.c > > @@ -166,6 +166,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, > > struct drm_mode_config *config = &dev->mode_config; > > > > if (degamma_lut_size) { > > + crtc->degamma_lut_size = degamma_lut_size; > > drm_object_attach_property(&crtc->base, > > config->degamma_lut_property, 0); > > drm_object_attach_property(&crtc->base, > > @@ -178,6 +179,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, > > config->ctm_property, 0); > > > > if (gamma_lut_size) { > > + crtc->gamma_lut_size = gamma_lut_size; > > drm_object_attach_property(&crtc->base, > > config->gamma_lut_property, 0); > > drm_object_attach_property(&crtc->base, > > @@ -585,17 +587,17 @@ int drm_plane_create_color_properties(struct drm_plane *plane, > > EXPORT_SYMBOL(drm_plane_create_color_properties); > > > > /** > > - * drm_color_lut_check - check validity of lookup table > > + * drm_color_lut_channels_check - check validity of the channels in the lookup table > > * @lut: property blob containing LUT to check > > * @tests: bitmask of tests to run > > * > > - * Helper to check whether a userspace-provided lookup table is valid and > > - * satisfies hardware requirements. Drivers pass a bitmask indicating which of > > - * the tests in &drm_color_lut_tests should be performed. > > + * Helper to check whether each color channel of userspace-provided lookup table is valid and > > + * satisfies hardware requirements. Drivers pass a bitmask indicating which of in > > + * &drm_color_lut_channels_tests should be performed. > > * > > * Returns 0 on success, -EINVAL on failure. > > */ > > -int drm_color_lut_check(const struct drm_property_blob *lut, u32 tests) > > +int drm_color_lut_channels_check(const struct drm_property_blob *lut, u32 tests) > > { > > const struct drm_color_lut *entry; > > int i; > > @@ -625,4 +627,4 @@ int drm_color_lut_check(const struct drm_property_blob *lut, u32 tests) > > > > return 0; > > } > > -EXPORT_SYMBOL(drm_color_lut_check); > > +EXPORT_SYMBOL(drm_color_lut_channels_check); > > diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c > > index dab892d2251ba..a308fe52746ac 100644 > > --- a/drivers/gpu/drm/i915/display/intel_color.c > > +++ b/drivers/gpu/drm/i915/display/intel_color.c > > @@ -1285,7 +1285,7 @@ static int check_luts(const struct intel_crtc_state *crtc_state) > > const struct drm_property_blob *gamma_lut = crtc_state->hw.gamma_lut; > > const struct drm_property_blob *degamma_lut = crtc_state->hw.degamma_lut; > > int gamma_length, degamma_length; > > - u32 gamma_tests, degamma_tests; > > + u32 gamma_channels_tests, degamma_channels_tests; > > > > /* Always allow legacy gamma LUT with no further checking. */ > > if (crtc_state_is_legacy_gamma(crtc_state)) > > @@ -1300,15 +1300,11 @@ static int check_luts(const struct intel_crtc_state *crtc_state) > > > > degamma_length = INTEL_INFO(dev_priv)->color.degamma_lut_size; > > gamma_length = INTEL_INFO(dev_priv)->color.gamma_lut_size; > > - degamma_tests = INTEL_INFO(dev_priv)->color.degamma_lut_tests; > > - gamma_tests = INTEL_INFO(dev_priv)->color.gamma_lut_tests; > > + degamma_channels_tests = INTEL_INFO(dev_priv)->color.degamma_lut_tests; > > + gamma_channels_tests = INTEL_INFO(dev_priv)->color.gamma_lut_tests; > > > > - if (check_lut_size(degamma_lut, degamma_length) || > > - check_lut_size(gamma_lut, gamma_length)) > > - return -EINVAL; > > Can you remove check_lut_size() now? > replace by drm_ check_lut_size still gotta keep it cause you reach this both using set prop, not necessarily through an atomic commit only. > > - > > - if (drm_color_lut_check(degamma_lut, degamma_tests) || > > - drm_color_lut_check(gamma_lut, gamma_tests)) > > + if (drm_color_lut_channels_check(degamma_lut, degamma_channels_tests) || > > + drm_color_lut_channels_check(gamma_lut, gamma_channels_tests)) > > return -EINVAL; > > > > return 0; > > diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h > > index 4045e2507e11c..a22d32a7a8719 100644 > > --- a/include/drm/drm_atomic_helper.h > > +++ b/include/drm/drm_atomic_helper.h > > @@ -38,6 +38,7 @@ struct drm_atomic_state; > > struct drm_private_obj; > > struct drm_private_state; > > > > +int drm_atomic_helper_check_crtcs(struct drm_atomic_state *state); > > int drm_atomic_helper_check_modeset(struct drm_device *dev, > > struct drm_atomic_state *state); > > int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, > > diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h > > index 81c298488b0c8..cb1bf361ad3e3 100644 > > --- a/include/drm/drm_color_mgmt.h > > +++ b/include/drm/drm_color_mgmt.h > > @@ -94,12 +94,12 @@ int drm_plane_create_color_properties(struct drm_plane *plane, > > enum drm_color_range default_range); > > > > /** > > - * enum drm_color_lut_tests - hw-specific LUT tests to perform > > + * enum drm_color_lut_channels_tests - hw-specific LUT tests to perform > > * > > * The drm_color_lut_check() function takes a bitmask of the values here to > > * determine which tests to apply to a userspace-provided LUT. > > */ > > -enum drm_color_lut_tests { > > +enum drm_color_lut_channels_tests { > > /** > > * @DRM_COLOR_LUT_EQUAL_CHANNELS: > > * > > @@ -119,5 +119,6 @@ enum drm_color_lut_tests { > > DRM_COLOR_LUT_NON_DECREASING = BIT(1), > > }; > > > > -int drm_color_lut_check(const struct drm_property_blob *lut, u32 tests); > > +int drm_color_lut_channels_check(const struct drm_property_blob *lut, > > + u32 tests); > > #endif > > diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h > > index 2deb15d7e1610..cabd3ef1a6e32 100644 > > --- a/include/drm/drm_crtc.h > > +++ b/include/drm/drm_crtc.h > > @@ -1072,6 +1072,17 @@ struct drm_crtc { > > /** @funcs: CRTC control functions */ > > const struct drm_crtc_funcs *funcs; > > > > + /** > > + * @degamma_lut_size: Size of degamma LUT. > > + */ > > + uint32_t degamma_lut_size; > > + > > + /** > > + * @gamma_lut_size: Size of Gamma LUT. Not used by legacy userspace such as > > + * X, which doesn't support large lut sizes. > > + */ > > + uint32_t gamma_lut_size; > > + > > /** > > * @gamma_size: Size of legacy gamma ramp reported to userspace. Set up > > * by calling drm_mode_crtc_set_gamma_size(). > > -- > > 2.33.0.882.g93a45727a2-goog > > > > -- > Sean Paul, Software Engineer, Google / Chromium OS _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 526FDC433F5 for ; Tue, 26 Oct 2021 19:27:08 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 20001603E5 for ; Tue, 26 Oct 2021 19:27:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 20001603E5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=93XH/riyzpUO1bufwRdjuauWmMkG3ZDkZf8KM0ne6Wo=; b=m7NBAbgJHI60cO YfQwF5StqbgNRgEl7+abxbiKTi032TlI2rwga7Zg31iHYzhsuCQ5nneM10KrawLM/HcoIQNK2TrOv FIOVwlPmmRDvvrO+Ah0EDbdJau0J3X6j3gPTTMMb0SUl1I7iMYxfCoCwRrD/MmaavkTEQ20AbwJhO 62luEgRXLsHF/EyrxfZdusOdOYDOeksniZGZxyi1QA8cI77hVlF2bOdNvi5xtnUlhDfbau3dBoL8U ZdCpbUNa8sxP82lCtOFK81jlLGHK0+X55uVdZgIfzbLmRYKUUdYIHt5FY9noFZkd9hjyHlz9WMX/k OjFOC7uu2Zd2hy6Xw0OQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mfS50-002tdW-De; Tue, 26 Oct 2021 19:25:51 +0000 Received: from mail-lj1-x232.google.com ([2a00:1450:4864:20::232]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mfS4r-002tZm-Qd for linux-arm-kernel@lists.infradead.org; Tue, 26 Oct 2021 19:25:44 +0000 Received: by mail-lj1-x232.google.com with SMTP id o11so583010ljg.10 for ; Tue, 26 Oct 2021 12:25:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Q1sNTRmvhkEvI5FmK7nviifWrglvInEpclo8SE5hIzU=; b=XTEoYlhIxpLauW3yVyQo5zD2pd/8FrRgQrzGIBZ73zwRopYZHnyTvFcIxF4HOoEziX 5O+546mkHYXs4TvIrvDl923VXdEP3R7JoH5Eb/+w59Dhia016p7DmkZB8SuArIb6y3Lz CMI6CBn3F7gw3ny9iBVtzyj6O2WRN2ZFKAz4w= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Q1sNTRmvhkEvI5FmK7nviifWrglvInEpclo8SE5hIzU=; b=lKUDp7iDsguY11h9gZ1j2lN72CO67rekL92ajhsM+lotPTgnSBXrVhLw+Dc70igQnw TD9coOzyVJjjpF29t6/LIgYPqI2iiqZao3soS2he2spx5lO89sV8WMtNwOeAuycomntB oJvO5WdQw7YlrvmObK6HaEbCx20MOHf7Gl9DkIC/yR6gQtAkUvuo4DJ0yPsepmP3XmW0 VJtD2FtKvtPaDjkAN3PUuLLOajmppPJB9kMb4IRSJXXswQBoPKZydZeLMvIqwRm9O/BR o4pc0ALxrtwZhEGbfSerp+khEO0Oyh2xWGxMZMRatS8v2FRRRg6mImUiTXM+hUzntjVI dP6A== X-Gm-Message-State: AOAM5310C3K4mbCMLdf6ogpDtbtwQ0Pq/jH8UWRNN0y3ox5dtSHqZRzD rh2gslD9Q+KrA/NL8wW27Fpt9OPdAUIat1jy2p8Rwg== X-Google-Smtp-Source: ABdhPJxgYi3vwo8/SxRb0tGKPJyV3KuMYcas/eYkHLrPxEizrjdvqbUCJ8W3LjSPCDB/SKaif2yYSmM2dggSUjb/6hc= X-Received: by 2002:a05:651c:507:: with SMTP id o7mr26677802ljp.356.1635276340088; Tue, 26 Oct 2021 12:25:40 -0700 (PDT) MIME-Version: 1.0 References: <20210929194012.3433306-1-markyacoub@chromium.org> <20211013181228.1578201-1-markyacoub@chromium.org> <20211026012628.GG2515@art_vandelay> In-Reply-To: <20211026012628.GG2515@art_vandelay> From: Mark Yacoub Date: Tue, 26 Oct 2021 15:25:29 -0400 Message-ID: Subject: Re: [Intel-gfx] [PATCH 1/2] drm: Add Gamma and Degamma LUT sizes props to drm_crtc to validate. To: Sean Paul Cc: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, seanpaul@chromium.org, harry.wentland@amd.com, Mark Yacoub , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Matthias Brugger , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211026_122541_884274_4E1CE1E4 X-CRM114-Status: GOOD ( 44.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Oct 25, 2021 at 9:26 PM Sean Paul wrote: > > On Wed, Oct 13, 2021 at 02:12:20PM -0400, Mark Yacoub wrote: > > From: Mark Yacoub > > > > [Why] > > 1. drm_atomic_helper_check doesn't check for the LUT sizes of either Gamma > > or Degamma props in the new CRTC state, allowing any invalid size to > > be passed on. > > 2. Each driver has its own LUT size, which could also be different for > > legacy users. > > > > [How] > > 1. Create |degamma_lut_size| and |gamma_lut_size| to save the LUT sizes > > assigned by the driver when it's initializing its color and CTM > > management. > > 2. Create drm_atomic_helper_check_crtc which is called by > > drm_atomic_helper_check to check the LUT sizes saved in drm_crtc that > > they match the sizes in the new CRTC state. > > 3. Rename older lut checks that test for the color channels to indicate > > it's a channel check. It's not included in drm_atomic_helper_check_crtc > > as it's hardware specific and is to be called by the driver. > > 4. As the LUT size check now happens in drm_atomic_helper_check, remove > > the lut check in intel_color.c > > I'd probably split the rename out from the crtc check since they're only > tangentially related. done. > > > > > Fixes: igt@kms_color@pipe-A-invalid-gamma-lut-sizes on MTK > > Tested on Zork(amdgpu) and Jacuzzi(mediatek), volteer(TGL) > > > > v1: > > 1. Fix typos > > 2. Remove the LUT size check from intel driver > > 3. Rename old LUT check to indicate it's a channel change > > > > Signed-off-by: Mark Yacoub > > --- > > drivers/gpu/drm/drm_atomic_helper.c | 60 ++++++++++++++++++++++ > > drivers/gpu/drm/drm_color_mgmt.c | 14 ++--- > > drivers/gpu/drm/i915/display/intel_color.c | 14 ++--- > > include/drm/drm_atomic_helper.h | 1 + > > include/drm/drm_color_mgmt.h | 7 +-- > > include/drm/drm_crtc.h | 11 ++++ > > 6 files changed, 89 insertions(+), 18 deletions(-) > > > > diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c > > index bc3487964fb5e..5feb2ad0209c3 100644 > > --- a/drivers/gpu/drm/drm_atomic_helper.c > > +++ b/drivers/gpu/drm/drm_atomic_helper.c > > @@ -929,6 +929,62 @@ drm_atomic_helper_check_planes(struct drm_device *dev, > > } > > EXPORT_SYMBOL(drm_atomic_helper_check_planes); > > > > +/** > > + * drm_atomic_helper_check_crtcs - validate state object for CRTC changes > > + * @state: the driver state object > > + * > > + * Check the CRTC state object such as the Gamma/Degamma LUT sizes if the new > > + * state holds them. > > + * > > + * RETURNS: > > + * Zero for success or -errno > > + */ > > +int drm_atomic_helper_check_crtcs(struct drm_atomic_state *state) > > +{ > > + struct drm_crtc *crtc; > > + struct drm_crtc_state *new_crtc_state; > > + int i; > > + > > + for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) { > > + if (new_crtc_state->color_mgmt_changed && > > + new_crtc_state->gamma_lut) { > > + uint64_t supported_lut_size = crtc->gamma_lut_size; > > + uint32_t supported_legacy_lut_size = crtc->gamma_size; > > + uint32_t new_state_lut_size = > > + drm_color_lut_size(new_crtc_state->gamma_lut); > > + > > + if (new_state_lut_size != supported_lut_size && > > + new_state_lut_size != supported_legacy_lut_size) { > > + drm_dbg_state( > > + state->dev, > > + "Invalid Gamma LUT size. Should be %u (or %u for legacy) but got %u.\n", > > + supported_lut_size, > > + supported_legacy_lut_size, > > + new_state_lut_size); > > + return -EINVAL; > > + } > > + } > > + > > + if (new_crtc_state->color_mgmt_changed && > > + new_crtc_state->degamma_lut) { > > + uint32_t new_state_lut_size = > > + drm_color_lut_size(new_crtc_state->degamma_lut); > > + uint64_t supported_lut_size = crtc->degamma_lut_size; > > + > > + if (new_state_lut_size != supported_lut_size) { > > + drm_dbg_state( > > + state->dev, > > + "Invalid Degamma LUT size. Should be %u but got %u.\n", > > + supported_lut_size, new_state_lut_size); > > + return -EINVAL; > > + } > > + } > > + } > > + > > + return 0; > > +} > > +EXPORT_SYMBOL(drm_atomic_helper_check_crtcs); > > + > > /** > > * drm_atomic_helper_check - validate state object > > * @dev: DRM device > > @@ -974,6 +1030,10 @@ int drm_atomic_helper_check(struct drm_device *dev, > > if (ret) > > return ret; > > > > + ret = drm_atomic_helper_check_crtcs(state); > > + if (ret) > > + return ret; > > + > > if (state->legacy_cursor_update) > > state->async_update = !drm_atomic_helper_async_check(dev, state); > > > > diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c > > index bb14f488c8f6c..e5b820ce823bf 100644 > > --- a/drivers/gpu/drm/drm_color_mgmt.c > > +++ b/drivers/gpu/drm/drm_color_mgmt.c > > @@ -166,6 +166,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, > > struct drm_mode_config *config = &dev->mode_config; > > > > if (degamma_lut_size) { > > + crtc->degamma_lut_size = degamma_lut_size; > > drm_object_attach_property(&crtc->base, > > config->degamma_lut_property, 0); > > drm_object_attach_property(&crtc->base, > > @@ -178,6 +179,7 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, > > config->ctm_property, 0); > > > > if (gamma_lut_size) { > > + crtc->gamma_lut_size = gamma_lut_size; > > drm_object_attach_property(&crtc->base, > > config->gamma_lut_property, 0); > > drm_object_attach_property(&crtc->base, > > @@ -585,17 +587,17 @@ int drm_plane_create_color_properties(struct drm_plane *plane, > > EXPORT_SYMBOL(drm_plane_create_color_properties); > > > > /** > > - * drm_color_lut_check - check validity of lookup table > > + * drm_color_lut_channels_check - check validity of the channels in the lookup table > > * @lut: property blob containing LUT to check > > * @tests: bitmask of tests to run > > * > > - * Helper to check whether a userspace-provided lookup table is valid and > > - * satisfies hardware requirements. Drivers pass a bitmask indicating which of > > - * the tests in &drm_color_lut_tests should be performed. > > + * Helper to check whether each color channel of userspace-provided lookup table is valid and > > + * satisfies hardware requirements. Drivers pass a bitmask indicating which of in > > + * &drm_color_lut_channels_tests should be performed. > > * > > * Returns 0 on success, -EINVAL on failure. > > */ > > -int drm_color_lut_check(const struct drm_property_blob *lut, u32 tests) > > +int drm_color_lut_channels_check(const struct drm_property_blob *lut, u32 tests) > > { > > const struct drm_color_lut *entry; > > int i; > > @@ -625,4 +627,4 @@ int drm_color_lut_check(const struct drm_property_blob *lut, u32 tests) > > > > return 0; > > } > > -EXPORT_SYMBOL(drm_color_lut_check); > > +EXPORT_SYMBOL(drm_color_lut_channels_check); > > diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c > > index dab892d2251ba..a308fe52746ac 100644 > > --- a/drivers/gpu/drm/i915/display/intel_color.c > > +++ b/drivers/gpu/drm/i915/display/intel_color.c > > @@ -1285,7 +1285,7 @@ static int check_luts(const struct intel_crtc_state *crtc_state) > > const struct drm_property_blob *gamma_lut = crtc_state->hw.gamma_lut; > > const struct drm_property_blob *degamma_lut = crtc_state->hw.degamma_lut; > > int gamma_length, degamma_length; > > - u32 gamma_tests, degamma_tests; > > + u32 gamma_channels_tests, degamma_channels_tests; > > > > /* Always allow legacy gamma LUT with no further checking. */ > > if (crtc_state_is_legacy_gamma(crtc_state)) > > @@ -1300,15 +1300,11 @@ static int check_luts(const struct intel_crtc_state *crtc_state) > > > > degamma_length = INTEL_INFO(dev_priv)->color.degamma_lut_size; > > gamma_length = INTEL_INFO(dev_priv)->color.gamma_lut_size; > > - degamma_tests = INTEL_INFO(dev_priv)->color.degamma_lut_tests; > > - gamma_tests = INTEL_INFO(dev_priv)->color.gamma_lut_tests; > > + degamma_channels_tests = INTEL_INFO(dev_priv)->color.degamma_lut_tests; > > + gamma_channels_tests = INTEL_INFO(dev_priv)->color.gamma_lut_tests; > > > > - if (check_lut_size(degamma_lut, degamma_length) || > > - check_lut_size(gamma_lut, gamma_length)) > > - return -EINVAL; > > Can you remove check_lut_size() now? > replace by drm_ check_lut_size still gotta keep it cause you reach this both using set prop, not necessarily through an atomic commit only. > > - > > - if (drm_color_lut_check(degamma_lut, degamma_tests) || > > - drm_color_lut_check(gamma_lut, gamma_tests)) > > + if (drm_color_lut_channels_check(degamma_lut, degamma_channels_tests) || > > + drm_color_lut_channels_check(gamma_lut, gamma_channels_tests)) > > return -EINVAL; > > > > return 0; > > diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h > > index 4045e2507e11c..a22d32a7a8719 100644 > > --- a/include/drm/drm_atomic_helper.h > > +++ b/include/drm/drm_atomic_helper.h > > @@ -38,6 +38,7 @@ struct drm_atomic_state; > > struct drm_private_obj; > > struct drm_private_state; > > > > +int drm_atomic_helper_check_crtcs(struct drm_atomic_state *state); > > int drm_atomic_helper_check_modeset(struct drm_device *dev, > > struct drm_atomic_state *state); > > int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state, > > diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h > > index 81c298488b0c8..cb1bf361ad3e3 100644 > > --- a/include/drm/drm_color_mgmt.h > > +++ b/include/drm/drm_color_mgmt.h > > @@ -94,12 +94,12 @@ int drm_plane_create_color_properties(struct drm_plane *plane, > > enum drm_color_range default_range); > > > > /** > > - * enum drm_color_lut_tests - hw-specific LUT tests to perform > > + * enum drm_color_lut_channels_tests - hw-specific LUT tests to perform > > * > > * The drm_color_lut_check() function takes a bitmask of the values here to > > * determine which tests to apply to a userspace-provided LUT. > > */ > > -enum drm_color_lut_tests { > > +enum drm_color_lut_channels_tests { > > /** > > * @DRM_COLOR_LUT_EQUAL_CHANNELS: > > * > > @@ -119,5 +119,6 @@ enum drm_color_lut_tests { > > DRM_COLOR_LUT_NON_DECREASING = BIT(1), > > }; > > > > -int drm_color_lut_check(const struct drm_property_blob *lut, u32 tests); > > +int drm_color_lut_channels_check(const struct drm_property_blob *lut, > > + u32 tests); > > #endif > > diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h > > index 2deb15d7e1610..cabd3ef1a6e32 100644 > > --- a/include/drm/drm_crtc.h > > +++ b/include/drm/drm_crtc.h > > @@ -1072,6 +1072,17 @@ struct drm_crtc { > > /** @funcs: CRTC control functions */ > > const struct drm_crtc_funcs *funcs; > > > > + /** > > + * @degamma_lut_size: Size of degamma LUT. > > + */ > > + uint32_t degamma_lut_size; > > + > > + /** > > + * @gamma_lut_size: Size of Gamma LUT. Not used by legacy userspace such as > > + * X, which doesn't support large lut sizes. > > + */ > > + uint32_t gamma_lut_size; > > + > > /** > > * @gamma_size: Size of legacy gamma ramp reported to userspace. Set up > > * by calling drm_mode_crtc_set_gamma_size(). > > -- > > 2.33.0.882.g93a45727a2-goog > > > > -- > Sean Paul, Software Engineer, Google / Chromium OS _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel