diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_hw_cdm.c')
-rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_hw_cdm.c | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_cdm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_cdm.c new file mode 100644 index 0000000000..9016b3ade6 --- /dev/null +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_cdm.c @@ -0,0 +1,247 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2023, The Linux Foundation. All rights reserved. + */ + +#include <linux/bitfield.h> + +#include <drm/drm_managed.h> + +#include "dpu_hw_mdss.h" +#include "dpu_hw_util.h" +#include "dpu_hw_catalog.h" +#include "dpu_hw_cdm.h" +#include "dpu_kms.h" + +#define CDM_CSC_10_OPMODE 0x000 +#define CDM_CSC_10_BASE 0x004 + +#define CDM_CDWN2_OP_MODE 0x100 +#define CDM_CDWN2_CLAMP_OUT 0x104 +#define CDM_CDWN2_PARAMS_3D_0 0x108 +#define CDM_CDWN2_PARAMS_3D_1 0x10C +#define CDM_CDWN2_COEFF_COSITE_H_0 0x110 +#define CDM_CDWN2_COEFF_COSITE_H_1 0x114 +#define CDM_CDWN2_COEFF_COSITE_H_2 0x118 +#define CDM_CDWN2_COEFF_OFFSITE_H_0 0x11C +#define CDM_CDWN2_COEFF_OFFSITE_H_1 0x120 +#define CDM_CDWN2_COEFF_OFFSITE_H_2 0x124 +#define CDM_CDWN2_COEFF_COSITE_V 0x128 +#define CDM_CDWN2_COEFF_OFFSITE_V 0x12C +#define CDM_CDWN2_OUT_SIZE 0x130 + +#define CDM_HDMI_PACK_OP_MODE 0x200 +#define CDM_CSC_10_MATRIX_COEFF_0 0x004 + +#define CDM_MUX 0x224 + +/* CDM CDWN2 sub-block bit definitions */ +#define CDM_CDWN2_OP_MODE_EN BIT(0) +#define CDM_CDWN2_OP_MODE_ENABLE_H BIT(1) +#define CDM_CDWN2_OP_MODE_ENABLE_V BIT(2) +#define CDM_CDWN2_OP_MODE_BITS_OUT_8BIT BIT(7) +#define CDM_CDWN2_V_PIXEL_METHOD_MASK GENMASK(6, 5) +#define CDM_CDWN2_H_PIXEL_METHOD_MASK GENMASK(4, 3) + +/* CDM CSC10 sub-block bit definitions */ +#define CDM_CSC10_OP_MODE_EN BIT(0) +#define CDM_CSC10_OP_MODE_SRC_FMT_YUV BIT(1) +#define CDM_CSC10_OP_MODE_DST_FMT_YUV BIT(2) + +/* CDM HDMI pack sub-block bit definitions */ +#define CDM_HDMI_PACK_OP_MODE_EN BIT(0) + +/* + * Horizontal coefficients for cosite chroma downscale + * s13 representation of coefficients + */ +static u32 cosite_h_coeff[] = {0x00000016, 0x000001cc, 0x0100009e}; + +/* + * Horizontal coefficients for offsite chroma downscale + */ +static u32 offsite_h_coeff[] = {0x000b0005, 0x01db01eb, 0x00e40046}; + +/* + * Vertical coefficients for cosite chroma downscale + */ +static u32 cosite_v_coeff[] = {0x00080004}; +/* + * Vertical coefficients for offsite chroma downscale + */ +static u32 offsite_v_coeff[] = {0x00060002}; + +static int dpu_hw_cdm_setup_cdwn(struct dpu_hw_cdm *ctx, struct dpu_hw_cdm_cfg *cfg) +{ + struct dpu_hw_blk_reg_map *c = &ctx->hw; + u32 opmode; + u32 out_size; + + switch (cfg->h_cdwn_type) { + case CDM_CDWN_DISABLE: + opmode = 0; + break; + case CDM_CDWN_PIXEL_DROP: + opmode = CDM_CDWN2_OP_MODE_ENABLE_H | + FIELD_PREP(CDM_CDWN2_H_PIXEL_METHOD_MASK, + CDM_CDWN2_METHOD_PIXEL_DROP); + break; + case CDM_CDWN_AVG: + opmode = CDM_CDWN2_OP_MODE_ENABLE_H | + FIELD_PREP(CDM_CDWN2_H_PIXEL_METHOD_MASK, + CDM_CDWN2_METHOD_AVG); + break; + case CDM_CDWN_COSITE: + opmode = CDM_CDWN2_OP_MODE_ENABLE_H | + FIELD_PREP(CDM_CDWN2_H_PIXEL_METHOD_MASK, + CDM_CDWN2_METHOD_COSITE); + DPU_REG_WRITE(c, CDM_CDWN2_COEFF_COSITE_H_0, + cosite_h_coeff[0]); + DPU_REG_WRITE(c, CDM_CDWN2_COEFF_COSITE_H_1, + cosite_h_coeff[1]); + DPU_REG_WRITE(c, CDM_CDWN2_COEFF_COSITE_H_2, + cosite_h_coeff[2]); + break; + case CDM_CDWN_OFFSITE: + opmode = CDM_CDWN2_OP_MODE_ENABLE_H | + FIELD_PREP(CDM_CDWN2_H_PIXEL_METHOD_MASK, CDM_CDWN2_METHOD_OFFSITE); + DPU_REG_WRITE(c, CDM_CDWN2_COEFF_OFFSITE_H_0, + offsite_h_coeff[0]); + DPU_REG_WRITE(c, CDM_CDWN2_COEFF_OFFSITE_H_1, + offsite_h_coeff[1]); + DPU_REG_WRITE(c, CDM_CDWN2_COEFF_OFFSITE_H_2, + offsite_h_coeff[2]); + break; + default: + DPU_ERROR("%s invalid horz down sampling type\n", __func__); + return -EINVAL; + } + + switch (cfg->v_cdwn_type) { + case CDM_CDWN_DISABLE: + /* if its only Horizontal downsample, we dont need to do anything here */ + break; + case CDM_CDWN_PIXEL_DROP: + opmode |= CDM_CDWN2_OP_MODE_ENABLE_V | + FIELD_PREP(CDM_CDWN2_V_PIXEL_METHOD_MASK, + CDM_CDWN2_METHOD_PIXEL_DROP); + break; + case CDM_CDWN_AVG: + opmode |= CDM_CDWN2_OP_MODE_ENABLE_V | + FIELD_PREP(CDM_CDWN2_V_PIXEL_METHOD_MASK, + CDM_CDWN2_METHOD_AVG); + break; + case CDM_CDWN_COSITE: + opmode |= CDM_CDWN2_OP_MODE_ENABLE_V | + FIELD_PREP(CDM_CDWN2_V_PIXEL_METHOD_MASK, + CDM_CDWN2_METHOD_COSITE); + DPU_REG_WRITE(c, + CDM_CDWN2_COEFF_COSITE_V, + cosite_v_coeff[0]); + break; + case CDM_CDWN_OFFSITE: + opmode |= CDM_CDWN2_OP_MODE_ENABLE_V | + FIELD_PREP(CDM_CDWN2_V_PIXEL_METHOD_MASK, + CDM_CDWN2_METHOD_OFFSITE); + DPU_REG_WRITE(c, + CDM_CDWN2_COEFF_OFFSITE_V, + offsite_v_coeff[0]); + break; + default: + return -EINVAL; + } + + if (cfg->output_bit_depth != CDM_CDWN_OUTPUT_10BIT) + opmode |= CDM_CDWN2_OP_MODE_BITS_OUT_8BIT; + + if (cfg->v_cdwn_type || cfg->h_cdwn_type) + opmode |= CDM_CDWN2_OP_MODE_EN; /* EN CDWN module */ + else + opmode &= ~CDM_CDWN2_OP_MODE_EN; + + out_size = (cfg->output_width & 0xFFFF) | ((cfg->output_height & 0xFFFF) << 16); + DPU_REG_WRITE(c, CDM_CDWN2_OUT_SIZE, out_size); + DPU_REG_WRITE(c, CDM_CDWN2_OP_MODE, opmode); + DPU_REG_WRITE(c, CDM_CDWN2_CLAMP_OUT, ((0x3FF << 16) | 0x0)); + + return 0; +} + +static int dpu_hw_cdm_enable(struct dpu_hw_cdm *ctx, struct dpu_hw_cdm_cfg *cdm) +{ + struct dpu_hw_blk_reg_map *c = &ctx->hw; + const struct dpu_format *fmt; + u32 opmode = 0; + u32 csc = 0; + + if (!ctx || !cdm) + return -EINVAL; + + fmt = cdm->output_fmt; + + if (!DPU_FORMAT_IS_YUV(fmt)) + return -EINVAL; + + dpu_hw_csc_setup(&ctx->hw, CDM_CSC_10_MATRIX_COEFF_0, cdm->csc_cfg, true); + dpu_hw_cdm_setup_cdwn(ctx, cdm); + + if (cdm->output_type == CDM_CDWN_OUTPUT_HDMI) { + if (fmt->chroma_sample == DPU_CHROMA_H1V2) + return -EINVAL; /*unsupported format */ + opmode = CDM_HDMI_PACK_OP_MODE_EN; + opmode |= (fmt->chroma_sample << 1); + } + + csc |= CDM_CSC10_OP_MODE_DST_FMT_YUV; + csc &= ~CDM_CSC10_OP_MODE_SRC_FMT_YUV; + csc |= CDM_CSC10_OP_MODE_EN; + + if (ctx && ctx->ops.bind_pingpong_blk) + ctx->ops.bind_pingpong_blk(ctx, cdm->pp_id); + + DPU_REG_WRITE(c, CDM_CSC_10_OPMODE, csc); + DPU_REG_WRITE(c, CDM_HDMI_PACK_OP_MODE, opmode); + return 0; +} + +static void dpu_hw_cdm_bind_pingpong_blk(struct dpu_hw_cdm *ctx, const enum dpu_pingpong pp) +{ + struct dpu_hw_blk_reg_map *c; + int mux_cfg; + + c = &ctx->hw; + + mux_cfg = DPU_REG_READ(c, CDM_MUX); + mux_cfg &= ~0xf; + + if (pp) + mux_cfg |= (pp - PINGPONG_0) & 0x7; + else + mux_cfg |= 0xf; + + DPU_REG_WRITE(c, CDM_MUX, mux_cfg); +} + +struct dpu_hw_cdm *dpu_hw_cdm_init(struct drm_device *dev, + const struct dpu_cdm_cfg *cfg, void __iomem *addr, + const struct dpu_mdss_version *mdss_rev) +{ + struct dpu_hw_cdm *c; + + c = drmm_kzalloc(dev, sizeof(*c), GFP_KERNEL); + if (!c) + return ERR_PTR(-ENOMEM); + + c->hw.blk_addr = addr + cfg->base; + c->hw.log_mask = DPU_DBG_MASK_CDM; + + /* Assign ops */ + c->idx = cfg->id; + c->caps = cfg; + + c->ops.enable = dpu_hw_cdm_enable; + if (mdss_rev->core_major_ver >= 5) + c->ops.bind_pingpong_blk = dpu_hw_cdm_bind_pingpong_blk; + + return c; +} |