From patchwork Wed Mar 16 10:57:17 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lionel Landwerlin X-Patchwork-Id: 8597861 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A92BCC0553 for ; Wed, 16 Mar 2016 10:58:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 65D20202BE for ; Wed, 16 Mar 2016 10:58:32 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 16DFB2026C for ; Wed, 16 Mar 2016 10:58:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8D6BB6E2A8; Wed, 16 Mar 2016 10:58:29 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 2AB576E184 for ; Wed, 16 Mar 2016 10:57:45 +0000 (UTC) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP; 16 Mar 2016 03:57:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,344,1455004800"; d="scan'208";a="935019371" Received: from ekagiann-mobl.ger.corp.intel.com (HELO ivy.ger.corp.intel.com) ([10.252.52.96]) by orsmga002.jf.intel.com with ESMTP; 16 Mar 2016 03:57:29 -0700 From: Lionel Landwerlin To: intel-gfx@lists.freedesktop.org Date: Wed, 16 Mar 2016 10:57:17 +0000 Message-Id: <1458125837-2576-5-git-send-email-lionel.g.landwerlin@intel.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1458125837-2576-1-git-send-email-lionel.g.landwerlin@intel.com> References: <1458125837-2576-1-git-send-email-lionel.g.landwerlin@intel.com> Cc: Kumar@freedesktop.org, daniel.vetter@ffwll.ch, Kausal Malladi Subject: [Intel-gfx] [PATCH 4/4] drm/i915: Implement color management on chv X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Patch based on a previous series by Shashank Sharma. v2: Update contributors v3: Refactor degamma/gamma LUTs load into a single function v4: Remove unused variable Signed-off-by: Shashank Sharma Signed-off-by: Kumar, Kiran S Signed-off-by: Kausal Malladi Signed-off-by: Lionel Landwerlin Reviewed-by: Matt Roper --- drivers/gpu/drm/i915/i915_drv.c | 3 + drivers/gpu/drm/i915/i915_reg.h | 31 +++++++++ drivers/gpu/drm/i915/intel_color.c | 133 +++++++++++++++++++++++++++++++++++-- 3 files changed, 161 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 3807b73..8a2aaa7 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -68,6 +68,8 @@ static struct drm_driver driver; #define BDW_COLORS \ .color = { .degamma_lut_size = 512, .gamma_lut_size = 512 } +#define CHV_COLORS \ + .color = { .degamma_lut_size = 65, .gamma_lut_size = 257 } static const struct intel_device_info intel_i830_info = { .gen = 2, .is_mobile = 1, .cursor_needs_physical = 1, .num_pipes = 2, @@ -325,6 +327,7 @@ static const struct intel_device_info intel_cherryview_info = { .display_mmio_offset = VLV_DISPLAY_BASE, GEN_CHV_PIPEOFFSETS, CURSOR_OFFSETS, + CHV_COLORS, }; static const struct intel_device_info intel_skylake_info = { diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index d9defd3..95f56a0 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7678,6 +7678,37 @@ enum skl_disp_power_wells { #define PREC_PAL_GC_MAX(pipe, i) _MMIO(_PIPE(pipe, _PAL_PREC_GC_MAX_A, _PAL_PREC_GC_MAX_B) + (i) * 4) #define PREC_PAL_EXT_GC_MAX(pipe, i) _MMIO(_PIPE(pipe, _PAL_PREC_EXT_GC_MAX_A, _PAL_PREC_EXT_GC_MAX_B) + (i) * 4) +/* pipe CSC & degamma/gamma LUTs on CHV */ +#define _CGM_PIPE_A_CSC_COEFF01 (VLV_DISPLAY_BASE + 0x67900) +#define _CGM_PIPE_A_CSC_COEFF23 (VLV_DISPLAY_BASE + 0x67904) +#define _CGM_PIPE_A_CSC_COEFF45 (VLV_DISPLAY_BASE + 0x67908) +#define _CGM_PIPE_A_CSC_COEFF67 (VLV_DISPLAY_BASE + 0x6790C) +#define _CGM_PIPE_A_CSC_COEFF8 (VLV_DISPLAY_BASE + 0x67910) +#define _CGM_PIPE_A_DEGAMMA (VLV_DISPLAY_BASE + 0x66000) +#define _CGM_PIPE_A_GAMMA (VLV_DISPLAY_BASE + 0x67000) +#define _CGM_PIPE_A_MODE (VLV_DISPLAY_BASE + 0x67A00) +#define CGM_PIPE_MODE_GAMMA (1 << 2) +#define CGM_PIPE_MODE_CSC (1 << 1) +#define CGM_PIPE_MODE_DEGAMMA (1 << 0) + +#define _CGM_PIPE_B_CSC_COEFF01 (VLV_DISPLAY_BASE + 0x69900) +#define _CGM_PIPE_B_CSC_COEFF23 (VLV_DISPLAY_BASE + 0x69904) +#define _CGM_PIPE_B_CSC_COEFF45 (VLV_DISPLAY_BASE + 0x69908) +#define _CGM_PIPE_B_CSC_COEFF67 (VLV_DISPLAY_BASE + 0x6990C) +#define _CGM_PIPE_B_CSC_COEFF8 (VLV_DISPLAY_BASE + 0x69910) +#define _CGM_PIPE_B_DEGAMMA (VLV_DISPLAY_BASE + 0x68000) +#define _CGM_PIPE_B_GAMMA (VLV_DISPLAY_BASE + 0x69000) +#define _CGM_PIPE_B_MODE (VLV_DISPLAY_BASE + 0x69A00) + +#define CGM_PIPE_CSC_COEFF01(pipe) _MMIO_PIPE(pipe, _CGM_PIPE_A_CSC_COEFF01, _CGM_PIPE_B_CSC_COEFF01) +#define CGM_PIPE_CSC_COEFF23(pipe) _MMIO_PIPE(pipe, _CGM_PIPE_A_CSC_COEFF23, _CGM_PIPE_B_CSC_COEFF23) +#define CGM_PIPE_CSC_COEFF45(pipe) _MMIO_PIPE(pipe, _CGM_PIPE_A_CSC_COEFF45, _CGM_PIPE_B_CSC_COEFF45) +#define CGM_PIPE_CSC_COEFF67(pipe) _MMIO_PIPE(pipe, _CGM_PIPE_A_CSC_COEFF67, _CGM_PIPE_B_CSC_COEFF67) +#define CGM_PIPE_CSC_COEFF8(pipe) _MMIO_PIPE(pipe, _CGM_PIPE_A_CSC_COEFF8, _CGM_PIPE_B_CSC_COEFF8) +#define CGM_PIPE_DEGAMMA(pipe, i, w) _MMIO(_PIPE(pipe, _CGM_PIPE_A_DEGAMMA, _CGM_PIPE_B_DEGAMMA) + (i) * 8 + (w) * 4) +#define CGM_PIPE_GAMMA(pipe, i, w) _MMIO(_PIPE(pipe, _CGM_PIPE_A_GAMMA, _CGM_PIPE_B_GAMMA) + (i) * 8 + (w) * 4) +#define CGM_PIPE_MODE(pipe) _MMIO_PIPE(pipe, _CGM_PIPE_A_MODE, _CGM_PIPE_B_MODE) + /* MIPI DSI registers */ #define _MIPI_PORT(port, a, c) _PORT3(port, a, 0, c) /* ports A and C only */ diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c index c6340d8..aa0b20d 100644 --- a/drivers/gpu/drm/i915/intel_color.c +++ b/drivers/gpu/drm/i915/intel_color.c @@ -29,6 +29,7 @@ #define CTM_COEFF_1_0 (1ULL << 32) #define CTM_COEFF_2_0 (CTM_COEFF_1_0 << 1) #define CTM_COEFF_4_0 (CTM_COEFF_2_0 << 1) +#define CTM_COEFF_8_0 (CTM_COEFF_4_0 << 1) #define CTM_COEFF_0_5 (CTM_COEFF_1_0 >> 1) #define CTM_COEFF_0_25 (CTM_COEFF_0_5 >> 1) #define CTM_COEFF_0_125 (CTM_COEFF_0_25 >> 1) @@ -199,6 +200,58 @@ static void i9xx_load_csc_matrix(struct drm_crtc *crtc) } } +/* + * Set up the pipe CSC unit on CherryView. + */ +static void cherryview_load_csc_matrix(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_crtc_state *state = crtc->state; + struct drm_i915_private *dev_priv = dev->dev_private; + int pipe = to_intel_crtc(crtc)->pipe; + uint32_t mode; + + if (state->ctm) { + struct drm_color_ctm *ctm = + (struct drm_color_ctm *) state->ctm->data; + uint16_t coeffs[9] = { 0, }; + int i; + + for (i = 0; i < ARRAY_SIZE(coeffs); i++) { + uint64_t abs_coeff = + ((1ULL << 63) - 1) & ctm->matrix[i]; + + /* Round coefficient. */ + abs_coeff += 1 << (32 - 13); + /* Clamp to hardware limits. */ + abs_coeff = clamp_val(abs_coeff, 0, CTM_COEFF_8_0 - 1); + + /* Write coefficients in S3.12 format. */ + if (ctm->matrix[i] & (1ULL << 63)) + coeffs[i] = 1 << 15; + coeffs[i] |= ((abs_coeff >> 32) & 7) << 12; + coeffs[i] |= (abs_coeff >> 20) & 0xfff; + } + + I915_WRITE(CGM_PIPE_CSC_COEFF01(pipe), + coeffs[1] << 16 | coeffs[0]); + I915_WRITE(CGM_PIPE_CSC_COEFF23(pipe), + coeffs[3] << 16 | coeffs[2]); + I915_WRITE(CGM_PIPE_CSC_COEFF45(pipe), + coeffs[5] << 16 | coeffs[4]); + I915_WRITE(CGM_PIPE_CSC_COEFF67(pipe), + coeffs[7] << 16 | coeffs[6]); + I915_WRITE(CGM_PIPE_CSC_COEFF8(pipe), coeffs[8]); + } + + mode = (state->ctm ? CGM_PIPE_MODE_CSC : 0); + if (!crtc_state_is_legacy(state)) { + mode |= (state->degamma_lut ? CGM_PIPE_MODE_DEGAMMA : 0) | + (state->gamma_lut ? CGM_PIPE_MODE_GAMMA : 0); + } + I915_WRITE(CGM_PIPE_MODE(pipe), mode); +} + void intel_color_set_csc(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; @@ -209,10 +262,10 @@ void intel_color_set_csc(struct drm_crtc *crtc) } /* Loads the legacy palette/gamma unit for the CRTC. */ -static void i9xx_load_luts(struct drm_crtc *crtc) +static void i9xx_load_luts_internal(struct drm_crtc *crtc, + struct drm_property_blob *blob) { struct drm_device *dev = crtc->dev; - struct drm_crtc_state *state = crtc->state; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); enum pipe pipe = intel_crtc->pipe; @@ -225,9 +278,8 @@ static void i9xx_load_luts(struct drm_crtc *crtc) assert_pll_enabled(dev_priv, pipe); } - if (state->gamma_lut) { - struct drm_color_lut *lut = - (struct drm_color_lut *) state->gamma_lut->data; + if (blob) { + struct drm_color_lut *lut = (struct drm_color_lut *) blob->data; for (i = 0; i < 256; i++) { uint32_t word = (drm_color_lut_extract(lut[i].red, 8) << 16) | @@ -251,6 +303,11 @@ static void i9xx_load_luts(struct drm_crtc *crtc) } } +static void i9xx_load_luts(struct drm_crtc *crtc) +{ + i9xx_load_luts_internal(crtc, crtc->state->gamma_lut); +} + /* Loads the legacy palette/gamma unit for the CRTC on Haswell. */ static void haswell_load_luts(struct drm_crtc *crtc) { @@ -363,6 +420,67 @@ static void broadwell_load_luts(struct drm_crtc *crtc) I915_WRITE(PREC_PAL_INDEX(pipe), 0); } +/* Loads the palette/gamma unit for the CRTC on CherryView. */ +static void cherryview_load_luts(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_crtc_state *state = crtc->state; + enum pipe pipe = to_intel_crtc(crtc)->pipe; + struct drm_color_lut *lut; + uint32_t i, lut_size; + uint32_t word0, word1; + + if (crtc_state_is_legacy(state)) { + /* Turn off degamma/gamma on CGM block. */ + I915_WRITE(CGM_PIPE_MODE(pipe), + (state->ctm ? CGM_PIPE_MODE_CSC : 0)); + i9xx_load_luts_internal(crtc, state->gamma_lut); + return; + } + + if (state->degamma_lut) { + lut = (struct drm_color_lut *) state->degamma_lut->data; + lut_size = INTEL_INFO(dev)->color.degamma_lut_size; + for (i = 0; i < lut_size; i++) { + /* Write LUT in U0.14 format. */ + word0 = + (drm_color_lut_extract(lut[i].green, 14) << 16) | + drm_color_lut_extract(lut[i].blue, 14); + word1 = drm_color_lut_extract(lut[i].red, 14); + + I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 0), word0); + I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 1), word1); + } + } + + if (state->gamma_lut) { + lut = (struct drm_color_lut *) state->gamma_lut->data; + lut_size = INTEL_INFO(dev)->color.gamma_lut_size; + for (i = 0; i < lut_size; i++) { + /* Write LUT in U0.10 format. */ + word0 = + (drm_color_lut_extract(lut[i].green, 10) << 16) | + drm_color_lut_extract(lut[i].blue, 10); + word1 = drm_color_lut_extract(lut[i].red, 10); + + I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 0), word0); + I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 1), word1); + } + } + + I915_WRITE(CGM_PIPE_MODE(pipe), + (state->ctm ? CGM_PIPE_MODE_CSC : 0) | + (state->degamma_lut ? CGM_PIPE_MODE_DEGAMMA : 0) | + (state->gamma_lut ? CGM_PIPE_MODE_GAMMA : 0)); + + /* + * Also program a linear LUT in the legacy block (behind the + * CGM block). + */ + i9xx_load_luts_internal(crtc, NULL); +} + void intel_color_load_luts(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; @@ -415,7 +533,10 @@ void intel_color_init(struct drm_crtc *crtc) drm_mode_crtc_set_gamma_size(crtc, 256); - if (IS_HASWELL(dev)) { + if (IS_CHERRYVIEW(dev)) { + dev_priv->display.load_csc_matrix = cherryview_load_csc_matrix; + dev_priv->display.load_luts = cherryview_load_luts; + } else if (IS_HASWELL(dev)) { dev_priv->display.load_csc_matrix = i9xx_load_csc_matrix; dev_priv->display.load_luts = haswell_load_luts; } else if (IS_BROADWELL(dev) || IS_SKYLAKE(dev) ||