From b1b1c74e36b369dceaa0ea98ac543e8c13c720ee Mon Sep 17 00:00:00 2001 From: Beeresh Gopal Date: Mon, 8 Dec 2014 10:48:59 -0500 Subject: [PATCH] drm/msm/mdp4: add YUV format support The patch add support for YUV frame format for MDP4 platform. Signed-off-by: Beeresh Gopal Signed-off-by: Stephane Viau Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c | 104 ++++++++++++++++++++-- 1 file changed, 95 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c index 1e5ebe83647d..cde25009203a 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c @@ -17,6 +17,8 @@ #include "mdp4_kms.h" +#define DOWN_SCALE_MAX 8 +#define UP_SCALE_MAX 8 struct mdp4_plane { struct drm_plane base; @@ -136,10 +138,6 @@ static void mdp4_plane_set_scanout(struct drm_plane *plane, struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane); struct mdp4_kms *mdp4_kms = get_kms(plane); enum mdp4_pipe pipe = mdp4_plane->pipe; - uint32_t iova = msm_framebuffer_iova(fb, mdp4_kms->id, 0); - - DBG("%s: set_scanout: %08x (%u)", mdp4_plane->name, - iova, fb->pitches[0]); mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_A(pipe), MDP4_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) | @@ -149,11 +147,45 @@ static void mdp4_plane_set_scanout(struct drm_plane *plane, MDP4_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) | MDP4_PIPE_SRC_STRIDE_B_P3(fb->pitches[3])); - mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP0_BASE(pipe), iova); + mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP0_BASE(pipe), + msm_framebuffer_iova(fb, mdp4_kms->id, 0)); + mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP1_BASE(pipe), + msm_framebuffer_iova(fb, mdp4_kms->id, 1)); + mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP2_BASE(pipe), + msm_framebuffer_iova(fb, mdp4_kms->id, 2)); + mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP3_BASE(pipe), + msm_framebuffer_iova(fb, mdp4_kms->id, 3)); plane->fb = fb; } +static void mdp4_write_csc_config(struct mdp4_kms *mdp4_kms, + enum mdp4_pipe pipe, struct csc_cfg *csc) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(csc->matrix); i++) { + mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_MV(pipe, i), + csc->matrix[i]); + } + + for (i = 0; i < ARRAY_SIZE(csc->post_bias) ; i++) { + mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_PRE_BV(pipe, i), + csc->pre_bias[i]); + + mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_POST_BV(pipe, i), + csc->post_bias[i]); + } + + for (i = 0; i < ARRAY_SIZE(csc->post_clamp) ; i++) { + mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_PRE_LV(pipe, i), + csc->pre_clamp[i]); + + mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_POST_LV(pipe, i), + csc->post_clamp[i]); + } +} + #define MDP4_VG_PHASE_STEP_DEFAULT 0x20000000 static int mdp4_plane_mode_set(struct drm_plane *plane, @@ -163,6 +195,7 @@ static int mdp4_plane_mode_set(struct drm_plane *plane, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h) { + struct drm_device *dev = plane->dev; struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane); struct mdp4_kms *mdp4_kms = get_kms(plane); enum mdp4_pipe pipe = mdp4_plane->pipe; @@ -186,14 +219,59 @@ static int mdp4_plane_mode_set(struct drm_plane *plane, fb->base.id, src_x, src_y, src_w, src_h, crtc->base.id, crtc_x, crtc_y, crtc_w, crtc_h); + format = to_mdp_format(msm_framebuffer_format(fb)); + + if (src_w > (crtc_w * DOWN_SCALE_MAX)) { + dev_err(dev->dev, "Width down scaling exceeds limits!\n"); + return -ERANGE; + } + + if (src_h > (crtc_h * DOWN_SCALE_MAX)) { + dev_err(dev->dev, "Height down scaling exceeds limits!\n"); + return -ERANGE; + } + + if (crtc_w > (src_w * UP_SCALE_MAX)) { + dev_err(dev->dev, "Width up scaling exceeds limits!\n"); + return -ERANGE; + } + + if (crtc_h > (src_h * UP_SCALE_MAX)) { + dev_err(dev->dev, "Height up scaling exceeds limits!\n"); + return -ERANGE; + } + if (src_w != crtc_w) { + uint32_t sel_unit = SCALE_FIR; op_mode |= MDP4_PIPE_OP_MODE_SCALEX_EN; - /* TODO calc phasex_step */ + + if (MDP_FORMAT_IS_YUV(format)) { + if (crtc_w > src_w) + sel_unit = SCALE_PIXEL_RPT; + else if (crtc_w <= (src_w / 4)) + sel_unit = SCALE_MN_PHASE; + + op_mode |= MDP4_PIPE_OP_MODE_SCALEX_UNIT_SEL(sel_unit); + phasex_step = mult_frac(MDP4_VG_PHASE_STEP_DEFAULT, + src_w, crtc_w); + } } if (src_h != crtc_h) { + uint32_t sel_unit = SCALE_FIR; op_mode |= MDP4_PIPE_OP_MODE_SCALEY_EN; - /* TODO calc phasey_step */ + + if (MDP_FORMAT_IS_YUV(format)) { + + if (crtc_h > src_h) + sel_unit = SCALE_PIXEL_RPT; + else if (crtc_h <= (src_h / 4)) + sel_unit = SCALE_MN_PHASE; + + op_mode |= MDP4_PIPE_OP_MODE_SCALEY_UNIT_SEL(sel_unit); + phasey_step = mult_frac(MDP4_VG_PHASE_STEP_DEFAULT, + src_h, crtc_h); + } } mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_SIZE(pipe), @@ -214,8 +292,6 @@ static int mdp4_plane_mode_set(struct drm_plane *plane, mdp4_plane_set_scanout(plane, fb); - format = to_mdp_format(msm_framebuffer_format(fb)); - mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_FORMAT(pipe), MDP4_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) | MDP4_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) | @@ -224,6 +300,8 @@ static int mdp4_plane_mode_set(struct drm_plane *plane, COND(format->alpha_enable, MDP4_PIPE_SRC_FORMAT_ALPHA_ENABLE) | MDP4_PIPE_SRC_FORMAT_CPP(format->cpp - 1) | MDP4_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) | + MDP4_PIPE_SRC_FORMAT_FETCH_PLANES(format->fetch_type) | + MDP4_PIPE_SRC_FORMAT_CHROMA_SAMP(format->chroma_sample) | COND(format->unpack_tight, MDP4_PIPE_SRC_FORMAT_UNPACK_TIGHT)); mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_UNPACK(pipe), @@ -232,6 +310,14 @@ static int mdp4_plane_mode_set(struct drm_plane *plane, MDP4_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) | MDP4_PIPE_SRC_UNPACK_ELEM3(format->unpack[3])); + if (MDP_FORMAT_IS_YUV(format)) { + struct csc_cfg *csc = mdp_get_default_csc_cfg(CSC_YUV2RGB); + + op_mode |= MDP4_PIPE_OP_MODE_SRC_YCBCR; + op_mode |= MDP4_PIPE_OP_MODE_CSC_EN; + mdp4_write_csc_config(mdp4_kms, pipe, csc); + } + mdp4_write(mdp4_kms, REG_MDP4_PIPE_OP_MODE(pipe), op_mode); mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEX_STEP(pipe), phasex_step); mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEY_STEP(pipe), phasey_step); -- 2.34.1