diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/hw/dsc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/dsc.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dsc.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dsc.h new file mode 100644 index 000000000000..c905d020b59e --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dsc.h @@ -0,0 +1,101 @@ +/* + * Copyright 2017 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ +#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT +#ifndef __DAL_DSC_H__ +#define __DAL_DSC_H__ + +#include "dc_dsc.h" +#include "dc_hw_types.h" +#include "dc_dp_types.h" + +/* Input parameters for configuring DSC from the outside of DSC */ +struct dsc_config { + uint32_t pic_width; + uint32_t pic_height; + enum dc_pixel_encoding pixel_encoding; + enum dc_color_depth color_depth; /* Bits per component */ + struct dc_dsc_config dc_dsc_cfg; +}; + + +/* Output parameters for configuring DSC-related part of OPTC */ +struct dsc_optc_config { + uint32_t slice_width; /* Slice width in pixels */ + uint32_t bytes_per_pixel; /* Bytes per pixel in u3.28 format */ + bool is_pixel_format_444; /* 'true' if pixel format is 'RGB 444' or 'Simple YCbCr 4:2:2' (4:2:2 upsampled to 4:4:4)' */ +}; + + +struct dcn_dsc_state { + uint32_t dsc_clock_en; + uint32_t dsc_slice_width; + uint32_t dsc_bytes_per_pixel; +}; + + +/* DSC encoder capabilities + * They differ from the DPCD DSC caps because they are based on AMD DSC encoder caps. + */ +union dsc_enc_slice_caps { + struct { + uint8_t NUM_SLICES_1 : 1; + uint8_t NUM_SLICES_2 : 1; + uint8_t NUM_SLICES_3 : 1; /* This one is not per DSC spec, but our encoder supports it */ + uint8_t NUM_SLICES_4 : 1; + uint8_t NUM_SLICES_8 : 1; + } bits; + uint8_t raw; +}; + +struct dsc_enc_caps { + uint8_t dsc_version; + union dsc_enc_slice_caps slice_caps; + int32_t lb_bit_depth; + bool is_block_pred_supported; + union dsc_color_formats color_formats; + union dsc_color_depth color_depth; + int32_t max_total_throughput_mps; /* Maximum total throughput with all the slices combined */ + int32_t max_slice_width; + uint32_t bpp_increment_div; /* bpp increment divisor, e.g. if 16, it's 1/16th of a bit */ +}; + +struct display_stream_compressor { + const struct dsc_funcs *funcs; + struct dc_context *ctx; + int inst; +}; + +struct dsc_funcs { + void (*dsc_get_enc_caps)(struct dsc_enc_caps *dsc_enc_caps, int pixel_clock_100Hz); + void (*dsc_read_state)(struct display_stream_compressor *dsc, struct dcn_dsc_state *s); + bool (*dsc_validate_stream)(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg); + void (*dsc_set_config)(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, + struct dsc_optc_config *dsc_optc_cfg, uint8_t *dsc_packed_pps); + void (*dsc_enable)(struct display_stream_compressor *dsc, int opp_pipe); + void (*dsc_disable)(struct display_stream_compressor *dsc); +}; + +#endif +#endif |