diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_ipp.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_ipp.c | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_ipp.c b/drivers/gpu/drm/amd/display/dc/dce/dce_ipp.c new file mode 100644 index 0000000000..34bff9aef6 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_ipp.c @@ -0,0 +1,311 @@ +/* + * 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 + * + */ + +#include "dce_ipp.h" +#include "reg_helper.h" +#include "dm_services.h" + +#define REG(reg) \ + (ipp_dce->regs->reg) + +#undef FN +#define FN(reg_name, field_name) \ + ipp_dce->ipp_shift->field_name, ipp_dce->ipp_mask->field_name + +#define CTX \ + ipp_dce->base.ctx + + +static void dce_ipp_cursor_set_position( + struct input_pixel_processor *ipp, + const struct dc_cursor_position *position, + const struct dc_cursor_mi_param *param) +{ + struct dce_ipp *ipp_dce = TO_DCE_IPP(ipp); + + /* lock cursor registers */ + REG_UPDATE(CUR_UPDATE, CURSOR_UPDATE_LOCK, true); + + /* Flag passed in structure differentiates cursor enable/disable. */ + /* Update if it differs from cached state. */ + REG_UPDATE(CUR_CONTROL, CURSOR_EN, position->enable); + + REG_SET_2(CUR_POSITION, 0, + CURSOR_X_POSITION, position->x, + CURSOR_Y_POSITION, position->y); + + REG_SET_2(CUR_HOT_SPOT, 0, + CURSOR_HOT_SPOT_X, position->x_hotspot, + CURSOR_HOT_SPOT_Y, position->y_hotspot); + + /* unlock cursor registers */ + REG_UPDATE(CUR_UPDATE, CURSOR_UPDATE_LOCK, false); +} + +static void dce_ipp_cursor_set_attributes( + struct input_pixel_processor *ipp, + const struct dc_cursor_attributes *attributes) +{ + struct dce_ipp *ipp_dce = TO_DCE_IPP(ipp); + int mode; + + /* Lock cursor registers */ + REG_UPDATE(CUR_UPDATE, CURSOR_UPDATE_LOCK, true); + + /* Program cursor control */ + switch (attributes->color_format) { + case CURSOR_MODE_MONO: + mode = 0; + break; + case CURSOR_MODE_COLOR_1BIT_AND: + mode = 1; + break; + case CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA: + mode = 2; + break; + case CURSOR_MODE_COLOR_UN_PRE_MULTIPLIED_ALPHA: + mode = 3; + break; + default: + BREAK_TO_DEBUGGER(); /* unsupported */ + mode = 0; + } + + REG_UPDATE_3(CUR_CONTROL, + CURSOR_MODE, mode, + CURSOR_2X_MAGNIFY, attributes->attribute_flags.bits.ENABLE_MAGNIFICATION, + CUR_INV_TRANS_CLAMP, attributes->attribute_flags.bits.INVERSE_TRANSPARENT_CLAMPING); + + if (attributes->color_format == CURSOR_MODE_MONO) { + REG_SET_3(CUR_COLOR1, 0, + CUR_COLOR1_BLUE, 0, + CUR_COLOR1_GREEN, 0, + CUR_COLOR1_RED, 0); + + REG_SET_3(CUR_COLOR2, 0, + CUR_COLOR2_BLUE, 0xff, + CUR_COLOR2_GREEN, 0xff, + CUR_COLOR2_RED, 0xff); + } + + /* + * Program cursor size -- NOTE: HW spec specifies that HW register + * stores size as (height - 1, width - 1) + */ + REG_SET_2(CUR_SIZE, 0, + CURSOR_WIDTH, attributes->width-1, + CURSOR_HEIGHT, attributes->height-1); + + /* Program cursor surface address */ + /* SURFACE_ADDRESS_HIGH: Higher order bits (39:32) of hardware cursor + * surface base address in byte. It is 4K byte aligned. + * The correct way to program cursor surface address is to first write + * to CUR_SURFACE_ADDRESS_HIGH, and then write to CUR_SURFACE_ADDRESS + */ + REG_SET(CUR_SURFACE_ADDRESS_HIGH, 0, + CURSOR_SURFACE_ADDRESS_HIGH, attributes->address.high_part); + + REG_SET(CUR_SURFACE_ADDRESS, 0, + CURSOR_SURFACE_ADDRESS, attributes->address.low_part); + + /* Unlock Cursor registers. */ + REG_UPDATE(CUR_UPDATE, CURSOR_UPDATE_LOCK, false); +} + + +static void dce_ipp_program_prescale(struct input_pixel_processor *ipp, + struct ipp_prescale_params *params) +{ + struct dce_ipp *ipp_dce = TO_DCE_IPP(ipp); + + /* set to bypass mode first before change */ + REG_UPDATE(PRESCALE_GRPH_CONTROL, + GRPH_PRESCALE_BYPASS, 1); + + REG_SET_2(PRESCALE_VALUES_GRPH_R, 0, + GRPH_PRESCALE_SCALE_R, params->scale, + GRPH_PRESCALE_BIAS_R, params->bias); + + REG_SET_2(PRESCALE_VALUES_GRPH_G, 0, + GRPH_PRESCALE_SCALE_G, params->scale, + GRPH_PRESCALE_BIAS_G, params->bias); + + REG_SET_2(PRESCALE_VALUES_GRPH_B, 0, + GRPH_PRESCALE_SCALE_B, params->scale, + GRPH_PRESCALE_BIAS_B, params->bias); + + if (params->mode != IPP_PRESCALE_MODE_BYPASS) { + REG_UPDATE(PRESCALE_GRPH_CONTROL, + GRPH_PRESCALE_BYPASS, 0); + + /* If prescale is in use, then legacy lut should be bypassed */ + REG_UPDATE(INPUT_GAMMA_CONTROL, + GRPH_INPUT_GAMMA_MODE, 1); + } +} + +static void dce_ipp_program_input_lut( + struct input_pixel_processor *ipp, + const struct dc_gamma *gamma) +{ + int i; + struct dce_ipp *ipp_dce = TO_DCE_IPP(ipp); + + /* power on LUT memory */ + if (REG(DCFE_MEM_PWR_CTRL)) + REG_SET(DCFE_MEM_PWR_CTRL, 0, DCP_LUT_MEM_PWR_DIS, 1); + + /* enable all */ + REG_SET(DC_LUT_WRITE_EN_MASK, 0, DC_LUT_WRITE_EN_MASK, 0x7); + + /* 256 entry mode */ + REG_UPDATE(DC_LUT_RW_MODE, DC_LUT_RW_MODE, 0); + + /* LUT-256, unsigned, integer, new u0.12 format */ + REG_SET_3(DC_LUT_CONTROL, 0, + DC_LUT_DATA_R_FORMAT, 3, + DC_LUT_DATA_G_FORMAT, 3, + DC_LUT_DATA_B_FORMAT, 3); + + /* start from index 0 */ + REG_SET(DC_LUT_RW_INDEX, 0, + DC_LUT_RW_INDEX, 0); + + for (i = 0; i < gamma->num_entries; i++) { + REG_SET(DC_LUT_SEQ_COLOR, 0, DC_LUT_SEQ_COLOR, + dc_fixpt_round( + gamma->entries.red[i])); + REG_SET(DC_LUT_SEQ_COLOR, 0, DC_LUT_SEQ_COLOR, + dc_fixpt_round( + gamma->entries.green[i])); + REG_SET(DC_LUT_SEQ_COLOR, 0, DC_LUT_SEQ_COLOR, + dc_fixpt_round( + gamma->entries.blue[i])); + } + + /* power off LUT memory */ + if (REG(DCFE_MEM_PWR_CTRL)) + REG_SET(DCFE_MEM_PWR_CTRL, 0, DCP_LUT_MEM_PWR_DIS, 0); + + /* bypass prescale, enable legacy LUT */ + REG_UPDATE(PRESCALE_GRPH_CONTROL, GRPH_PRESCALE_BYPASS, 1); + REG_UPDATE(INPUT_GAMMA_CONTROL, GRPH_INPUT_GAMMA_MODE, 0); +} + +static void dce_ipp_set_degamma( + struct input_pixel_processor *ipp, + enum ipp_degamma_mode mode) +{ + struct dce_ipp *ipp_dce = TO_DCE_IPP(ipp); + uint32_t degamma_type = (mode == IPP_DEGAMMA_MODE_HW_sRGB) ? 1 : 0; + + ASSERT(mode == IPP_DEGAMMA_MODE_BYPASS || mode == IPP_DEGAMMA_MODE_HW_sRGB); + + REG_SET_3(DEGAMMA_CONTROL, 0, + GRPH_DEGAMMA_MODE, degamma_type, + CURSOR_DEGAMMA_MODE, degamma_type, + CURSOR2_DEGAMMA_MODE, degamma_type); +} + +#if defined(CONFIG_DRM_AMD_DC_SI) +static void dce60_ipp_set_degamma( + struct input_pixel_processor *ipp, + enum ipp_degamma_mode mode) +{ + struct dce_ipp *ipp_dce = TO_DCE_IPP(ipp); + uint32_t degamma_type = (mode == IPP_DEGAMMA_MODE_HW_sRGB) ? 1 : 0; + + ASSERT(mode == IPP_DEGAMMA_MODE_BYPASS || mode == IPP_DEGAMMA_MODE_HW_sRGB); + /* DCE6 does not have CURSOR2_DEGAMMA_MODE bit in DEGAMMA_CONTROL reg */ + REG_SET_2(DEGAMMA_CONTROL, 0, + GRPH_DEGAMMA_MODE, degamma_type, + CURSOR_DEGAMMA_MODE, degamma_type); +} +#endif + +static const struct ipp_funcs dce_ipp_funcs = { + .ipp_cursor_set_attributes = dce_ipp_cursor_set_attributes, + .ipp_cursor_set_position = dce_ipp_cursor_set_position, + .ipp_program_prescale = dce_ipp_program_prescale, + .ipp_program_input_lut = dce_ipp_program_input_lut, + .ipp_set_degamma = dce_ipp_set_degamma +}; + +#if defined(CONFIG_DRM_AMD_DC_SI) +static const struct ipp_funcs dce60_ipp_funcs = { + .ipp_cursor_set_attributes = dce_ipp_cursor_set_attributes, + .ipp_cursor_set_position = dce_ipp_cursor_set_position, + .ipp_program_prescale = dce_ipp_program_prescale, + .ipp_program_input_lut = dce_ipp_program_input_lut, + .ipp_set_degamma = dce60_ipp_set_degamma +}; +#endif + + +/*****************************************/ +/* Constructor, Destructor */ +/*****************************************/ + +void dce_ipp_construct( + struct dce_ipp *ipp_dce, + struct dc_context *ctx, + int inst, + const struct dce_ipp_registers *regs, + const struct dce_ipp_shift *ipp_shift, + const struct dce_ipp_mask *ipp_mask) +{ + ipp_dce->base.ctx = ctx; + ipp_dce->base.inst = inst; + ipp_dce->base.funcs = &dce_ipp_funcs; + + ipp_dce->regs = regs; + ipp_dce->ipp_shift = ipp_shift; + ipp_dce->ipp_mask = ipp_mask; +} + +#if defined(CONFIG_DRM_AMD_DC_SI) +void dce60_ipp_construct( + struct dce_ipp *ipp_dce, + struct dc_context *ctx, + int inst, + const struct dce_ipp_registers *regs, + const struct dce_ipp_shift *ipp_shift, + const struct dce_ipp_mask *ipp_mask) +{ + ipp_dce->base.ctx = ctx; + ipp_dce->base.inst = inst; + ipp_dce->base.funcs = &dce60_ipp_funcs; + + ipp_dce->regs = regs; + ipp_dce->ipp_shift = ipp_shift; + ipp_dce->ipp_mask = ipp_mask; +} +#endif + +void dce_ipp_destroy(struct input_pixel_processor **ipp) +{ + kfree(TO_DCE_IPP(*ipp)); + *ipp = NULL; +} |