From patchwork Thu Nov 1 18:33:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Shankar, Uma" X-Patchwork-Id: 10664425 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E3FC613BF for ; Thu, 1 Nov 2018 18:12:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D7D622C307 for ; Thu, 1 Nov 2018 18:12:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CAC042C32B; Thu, 1 Nov 2018 18:12:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 36B632C307 for ; Thu, 1 Nov 2018 18:12:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7709B6E464; Thu, 1 Nov 2018 18:12:54 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id EB6F46E464 for ; Thu, 1 Nov 2018 18:12:52 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Nov 2018 11:12:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,453,1534834800"; d="scan'208";a="105179861" Received: from linuxpresi1-desktop.iind.intel.com ([10.223.25.28]) by orsmga002.jf.intel.com with ESMTP; 01 Nov 2018 11:12:50 -0700 From: Uma Shankar To: intel-gfx@lists.freedesktop.org Date: Fri, 2 Nov 2018 00:03:12 +0530 Message-Id: <1541097192-12300-3-git-send-email-uma.shankar@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1541097192-12300-1-git-send-email-uma.shankar@intel.com> References: <1541097192-12300-1-git-send-email-uma.shankar@intel.com> Subject: [Intel-gfx] [v8 2/2] drm/i915/icl: Enable Plane Input CSC for YUV to RGB Conversion X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ville.syrjala@intel.com, maarten.lankhorst@intel.com MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Plane input CSC needs to be enabled to convert frambuffers from YUV to RGB. This is needed for bottom 3 planes on ICL, rest of the planes have hardcoded conversion and taken care by the legacy code. This patch defines the co-efficient values for YUV to RGB conversion in BT709 and BT601 formats. It programs the coefficients and enables the plane input csc unit in hardware. This has been verified and tested by Maarten and the change is working as expecpted. v2: Addressed Maarten's and Ville's review comments and added the coefficients in a 2D array instead of independent Macros. v3: Added individual coefficient matrix (9 values) instead of 6 register values as per Maarten's comment. Also addresed a shift issue with B channel coefficient. v4: Added support for Limited Range Color Handling v5: Fixed Matt and Maarten's review comments. v6: Added human readable matrix values for YUV to RGB Conversion along with just the bspec register values, as per Matt's suggestion. v7: Refactored the code, move csc coefficient programming function to intel_sprite.c and made it static as per Ville's review comment. v8: Addressed Ville's review comment. Called the coefficient programming from within the skl_program_plane and used I915_WRITE_FW instead of I915_WRITE. Signed-off-by: Uma Shankar Reviewed-by: Matt Roper Reviewed-by: Maarten Lankhorst --- drivers/gpu/drm/i915/intel_display.c | 17 ++++-- drivers/gpu/drm/i915/intel_sprite.c | 108 +++++++++++++++++++++++++++++++++++ 2 files changed, 120 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index fe045ab..daec1fd 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3666,6 +3666,7 @@ u32 glk_plane_color_ctl(const struct intel_crtc_state *crtc_state, struct drm_i915_private *dev_priv = to_i915(plane_state->base.plane->dev); const struct drm_framebuffer *fb = plane_state->base.fb; + struct intel_plane *plane = to_intel_plane(plane_state->base.plane); u32 plane_color_ctl = 0; if (INTEL_GEN(dev_priv) < 11) { @@ -3675,14 +3676,20 @@ u32 glk_plane_color_ctl(const struct intel_crtc_state *crtc_state, plane_color_ctl |= PLANE_COLOR_PLANE_GAMMA_DISABLE; plane_color_ctl |= glk_plane_color_ctl_alpha(plane_state); - if (fb->format->is_yuv) { - if (plane_state->base.color_encoding == DRM_COLOR_YCBCR_BT709) - plane_color_ctl |= PLANE_COLOR_CSC_MODE_YUV709_TO_RGB709; + if (fb->format->is_yuv && !icl_is_hdr_plane(plane)) { + if (plane_state->base.color_encoding == + DRM_COLOR_YCBCR_BT709) + plane_color_ctl |= + PLANE_COLOR_CSC_MODE_YUV709_TO_RGB709; else - plane_color_ctl |= PLANE_COLOR_CSC_MODE_YUV601_TO_RGB709; + plane_color_ctl |= + PLANE_COLOR_CSC_MODE_YUV601_TO_RGB709; if (plane_state->base.color_range == DRM_COLOR_YCBCR_FULL_RANGE) - plane_color_ctl |= PLANE_COLOR_YUV_RANGE_CORRECTION_DISABLE; + plane_color_ctl |= + PLANE_COLOR_YUV_RANGE_CORRECTION_DISABLE; + } else if (fb->format->is_yuv) { + plane_color_ctl |= PLANE_COLOR_INPUT_CSC_ENABLE; } return plane_color_ctl; diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index c604f6b..0b9cf29 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -40,6 +40,7 @@ #include "intel_frontbuffer.h" #include #include "i915_drv.h" +#include int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode, int usecs) @@ -361,6 +362,109 @@ int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state) ((crtc_w + 1) << 16)|(crtc_h + 1)); } +/* Preoffset values for YUV to RGB Conversion */ +#define PREOFF_YUV_TO_RGB_HI 0x1800 +#define PREOFF_YUV_TO_RGB_ME 0x1F00 +#define PREOFF_YUV_TO_RGB_LO 0x1800 + +#define ROFF(x) (((x) & 0xffff) << 16) +#define GOFF(x) (((x) & 0xffff) << 0) +#define BOFF(x) (((x) & 0xffff) << 16) + +static void +icl_program_input_csc_coeff(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state) +{ + struct drm_i915_private *dev_priv = + to_i915(plane_state->base.plane->dev); + struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); + enum pipe pipe = crtc->pipe; + struct intel_plane *intel_plane = + to_intel_plane(plane_state->base.plane); + enum plane_id plane = intel_plane->id; + + static const u16 input_csc_matrix[][9] = { + /* + * BT.601 full range YCbCr -> full range RGB + * The matrix required is : + * [1.000, 0.000, 1.371, + * 1.000, -0.336, -0.698, + * 1.000, 1.732, 0.0000] + */ + [DRM_COLOR_YCBCR_BT601] = { + 0x7AF8, 0x7800, 0x0, + 0x8B28, 0x7800, 0x9AC0, + 0x0, 0x7800, 0x7DD8, + }, + /* + * BT.709 full range YCbCr -> full range RGB + * The matrix required is : + * [1.000, 0.000, 1.574, + * 1.000, -0.187, -0.468, + * 1.000, 1.855, 0.0000] + */ + [DRM_COLOR_YCBCR_BT709] = { + 0x7C98, 0x7800, 0x0, + 0x9EF8, 0x7800, 0xABF8, + 0x0, 0x7800, 0x7ED8, + }, + }; + + /* Matrix for Limited Range to Full Range Conversion */ + static const u16 input_csc_matrix_lr[][9] = { + /* + * BT.601 Limted range YCbCr -> full range RGB + * The matrix required is : + * [1.164384, 0.000, 1.596370, + * 1.138393, -0.382500, -0.794598, + * 1.138393, 1.971696, 0.0000] + */ + [DRM_COLOR_YCBCR_BT601] = { + 0x7CC8, 0x7950, 0x0, + 0x8CB8, 0x7918, 0x9C40, + 0x0, 0x7918, 0x7FC8, + }, + /* + * BT.709 Limited range YCbCr -> full range RGB + * The matrix required is : + * [1.164, 0.000, 1.833671, + * 1.138393, -0.213249, -0.532909, + * 1.138393, 2.112402, 0.0000] + */ + [DRM_COLOR_YCBCR_BT709] = { + 0x7EA8, 0x7950, 0x0, + 0x8888, 0x7918, 0xADA8, + 0x0, 0x7918, 0x6870, + }, + }; + const u16 *csc; + + if (plane_state->base.color_range == DRM_COLOR_YCBCR_FULL_RANGE) + csc = input_csc_matrix[plane_state->base.color_encoding]; + else + csc = input_csc_matrix_lr[plane_state->base.color_encoding]; + + I915_WRITE_FW(PLANE_INPUT_CSC_COEFF(pipe, plane, 0), ROFF(csc[0]) | + GOFF(csc[1])); + I915_WRITE_FW(PLANE_INPUT_CSC_COEFF(pipe, plane, 1), BOFF(csc[2])); + I915_WRITE_FW(PLANE_INPUT_CSC_COEFF(pipe, plane, 2), ROFF(csc[3]) | + GOFF(csc[4])); + I915_WRITE_FW(PLANE_INPUT_CSC_COEFF(pipe, plane, 3), BOFF(csc[5])); + I915_WRITE_FW(PLANE_INPUT_CSC_COEFF(pipe, plane, 4), ROFF(csc[6]) | + GOFF(csc[7])); + I915_WRITE_FW(PLANE_INPUT_CSC_COEFF(pipe, plane, 5), BOFF(csc[8])); + + I915_WRITE_FW(PLANE_INPUT_CSC_PREOFF(pipe, plane, 0), + PREOFF_YUV_TO_RGB_HI); + I915_WRITE_FW(PLANE_INPUT_CSC_PREOFF(pipe, plane, 1), + PREOFF_YUV_TO_RGB_ME); + I915_WRITE_FW(PLANE_INPUT_CSC_PREOFF(pipe, plane, 2), + PREOFF_YUV_TO_RGB_LO); + I915_WRITE_FW(PLANE_INPUT_CSC_POSTOFF(pipe, plane, 0), 0x0); + I915_WRITE_FW(PLANE_INPUT_CSC_POSTOFF(pipe, plane, 1), 0x0); + I915_WRITE_FW(PLANE_INPUT_CSC_POSTOFF(pipe, plane, 2), 0x0); +} + static void skl_program_plane(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, @@ -381,6 +485,7 @@ int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state) uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16; uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16; struct intel_plane *linked = plane_state->linked_plane; + const struct drm_framebuffer *fb = plane_state->base.fb; unsigned long irqflags; u32 keymsk = 0, keymax = 0; @@ -394,6 +499,9 @@ int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state) I915_WRITE_FW(PLANE_COLOR_CTL(pipe, plane_id), plane_state->color_ctl); + if (fb->format->is_yuv && icl_is_hdr_plane(plane)) + icl_program_input_csc_coeff(crtc_state, plane_state); + if (key->flags) { I915_WRITE_FW(PLANE_KEYVAL(pipe, plane_id), key->min_value);