diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce80/dce80_compressor.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce80/dce80_compressor.c | 839 |
1 files changed, 839 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce80/dce80_compressor.c b/drivers/gpu/drm/amd/display/dc/dce80/dce80_compressor.c new file mode 100644 index 000000000000..eeedb7c4fe53 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dce80/dce80_compressor.c @@ -0,0 +1,839 @@ +/* + * Copyright 2012-15 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 "dm_services.h" + +#include "dce/dce_8_0_d.h" +#include "dce/dce_8_0_sh_mask.h" +#include "gmc/gmc_7_1_sh_mask.h" +#include "gmc/gmc_7_1_d.h" + +#include "include/logger_interface.h" +#include "dce80_compressor.h" + +#define DCP_REG(reg)\ + (reg + cp80->offsets.dcp_offset) +#define DMIF_REG(reg)\ + (reg + cp80->offsets.dmif_offset) + +static const struct dce80_compressor_reg_offsets reg_offsets[] = { +{ + .dcp_offset = (mmDCP0_GRPH_CONTROL - mmDCP0_GRPH_CONTROL), + .dmif_offset = (mmDMIF_PG0_DPG_PIPE_DPM_CONTROL + - mmDMIF_PG0_DPG_PIPE_DPM_CONTROL), +}, +{ + .dcp_offset = (mmDCP1_GRPH_CONTROL - mmDCP0_GRPH_CONTROL), + .dmif_offset = (mmDMIF_PG1_DPG_PIPE_DPM_CONTROL + - mmDMIF_PG0_DPG_PIPE_DPM_CONTROL), +}, +{ + .dcp_offset = (mmDCP2_GRPH_CONTROL - mmDCP0_GRPH_CONTROL), + .dmif_offset = (mmDMIF_PG2_DPG_PIPE_DPM_CONTROL + - mmDMIF_PG0_DPG_PIPE_DPM_CONTROL), +}, +{ + .dcp_offset = (mmDCP3_GRPH_CONTROL - mmDCP0_GRPH_CONTROL), + .dmif_offset = (mmDMIF_PG3_DPG_PIPE_DPM_CONTROL + - mmDMIF_PG0_DPG_PIPE_DPM_CONTROL), +}, +{ + .dcp_offset = (mmDCP4_GRPH_CONTROL - mmDCP0_GRPH_CONTROL), + .dmif_offset = (mmDMIF_PG4_DPG_PIPE_DPM_CONTROL + - mmDMIF_PG0_DPG_PIPE_DPM_CONTROL), +}, +{ + .dcp_offset = (mmDCP5_GRPH_CONTROL - mmDCP0_GRPH_CONTROL), + .dmif_offset = (mmDMIF_PG5_DPG_PIPE_DPM_CONTROL + - mmDMIF_PG0_DPG_PIPE_DPM_CONTROL), +} +}; + +static const uint32_t dce8_one_lpt_channel_max_resolution = 2048 * 1200; + +enum fbc_idle_force { + /* Bit 0 - Display registers updated */ + FBC_IDLE_FORCE_DISPLAY_REGISTER_UPDATE = 0x00000001, + + /* Bit 2 - FBC_GRPH_COMP_EN register updated */ + FBC_IDLE_FORCE_GRPH_COMP_EN = 0x00000002, + /* Bit 3 - FBC_SRC_SEL register updated */ + FBC_IDLE_FORCE_SRC_SEL_CHANGE = 0x00000004, + /* Bit 4 - FBC_MIN_COMPRESSION register updated */ + FBC_IDLE_FORCE_MIN_COMPRESSION_CHANGE = 0x00000008, + /* Bit 5 - FBC_ALPHA_COMP_EN register updated */ + FBC_IDLE_FORCE_ALPHA_COMP_EN = 0x00000010, + /* Bit 6 - FBC_ZERO_ALPHA_CHUNK_SKIP_EN register updated */ + FBC_IDLE_FORCE_ZERO_ALPHA_CHUNK_SKIP_EN = 0x00000020, + /* Bit 7 - FBC_FORCE_COPY_TO_COMP_BUF register updated */ + FBC_IDLE_FORCE_FORCE_COPY_TO_COMP_BUF = 0x00000040, + + /* Bit 24 - Memory write to region 0 defined by MC registers. */ + FBC_IDLE_FORCE_MEMORY_WRITE_TO_REGION0 = 0x01000000, + /* Bit 25 - Memory write to region 1 defined by MC registers */ + FBC_IDLE_FORCE_MEMORY_WRITE_TO_REGION1 = 0x02000000, + /* Bit 26 - Memory write to region 2 defined by MC registers */ + FBC_IDLE_FORCE_MEMORY_WRITE_TO_REGION2 = 0x04000000, + /* Bit 27 - Memory write to region 3 defined by MC registers. */ + FBC_IDLE_FORCE_MEMORY_WRITE_TO_REGION3 = 0x08000000, + + /* Bit 28 - Memory write from any client other than MCIF */ + FBC_IDLE_FORCE_MEMORY_WRITE_OTHER_THAN_MCIF = 0x10000000, + /* Bit 29 - CG statics screen signal is inactive */ + FBC_IDLE_FORCE_CG_STATIC_SCREEN_IS_INACTIVE = 0x20000000, +}; + +static uint32_t lpt_size_alignment(struct dce80_compressor *cp80) +{ + /*LPT_ALIGNMENT (in bytes) = ROW_SIZE * #BANKS * # DRAM CHANNELS. */ + return cp80->base.raw_size * cp80->base.banks_num * + cp80->base.dram_channels_num; +} + +static uint32_t lpt_memory_control_config(struct dce80_compressor *cp80, + uint32_t lpt_control) +{ + /*LPT MC Config */ + if (cp80->base.options.bits.LPT_MC_CONFIG == 1) { + /* POSSIBLE VALUES for LPT NUM_PIPES (DRAM CHANNELS): + * 00 - 1 CHANNEL + * 01 - 2 CHANNELS + * 02 - 4 OR 6 CHANNELS + * (Only for discrete GPU, N/A for CZ) + * 03 - 8 OR 12 CHANNELS + * (Only for discrete GPU, N/A for CZ) */ + switch (cp80->base.dram_channels_num) { + case 2: + set_reg_field_value( + lpt_control, + 1, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_NUM_PIPES); + break; + case 1: + set_reg_field_value( + lpt_control, + 0, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_NUM_PIPES); + break; + default: + dm_logger_write( + cp80->base.ctx->logger, LOG_WARNING, + "%s: Invalid LPT NUM_PIPES!!!", + __func__); + break; + } + + /* The mapping for LPT NUM_BANKS is in + * GRPH_CONTROL.GRPH_NUM_BANKS register field + * Specifies the number of memory banks for tiling + * purposes. Only applies to 2D and 3D tiling modes. + * POSSIBLE VALUES: + * 00 - DCP_GRPH_NUM_BANKS_2BANK: ADDR_SURF_2_BANK + * 01 - DCP_GRPH_NUM_BANKS_4BANK: ADDR_SURF_4_BANK + * 02 - DCP_GRPH_NUM_BANKS_8BANK: ADDR_SURF_8_BANK + * 03 - DCP_GRPH_NUM_BANKS_16BANK: ADDR_SURF_16_BANK */ + switch (cp80->base.banks_num) { + case 16: + set_reg_field_value( + lpt_control, + 3, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_NUM_BANKS); + break; + case 8: + set_reg_field_value( + lpt_control, + 2, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_NUM_BANKS); + break; + case 4: + set_reg_field_value( + lpt_control, + 1, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_NUM_BANKS); + break; + case 2: + set_reg_field_value( + lpt_control, + 0, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_NUM_BANKS); + break; + default: + dm_logger_write( + cp80->base.ctx->logger, LOG_WARNING, + "%s: Invalid LPT NUM_BANKS!!!", + __func__); + break; + } + + /* The mapping is in DMIF_ADDR_CALC. + * ADDR_CONFIG_PIPE_INTERLEAVE_SIZE register field for + * Carrizo specifies the memory interleave per pipe. + * It effectively specifies the location of pipe bits in + * the memory address. + * POSSIBLE VALUES: + * 00 - ADDR_CONFIG_PIPE_INTERLEAVE_256B: 256 byte + * interleave + * 01 - ADDR_CONFIG_PIPE_INTERLEAVE_512B: 512 byte + * interleave + */ + switch (cp80->base.channel_interleave_size) { + case 256: /*256B */ + set_reg_field_value( + lpt_control, + 0, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_PIPE_INTERLEAVE_SIZE); + break; + case 512: /*512B */ + set_reg_field_value( + lpt_control, + 1, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_PIPE_INTERLEAVE_SIZE); + break; + default: + dm_logger_write( + cp80->base.ctx->logger, LOG_WARNING, + "%s: Invalid LPT INTERLEAVE_SIZE!!!", + __func__); + break; + } + + /* The mapping for LOW_POWER_TILING_ROW_SIZE is in + * DMIF_ADDR_CALC.ADDR_CONFIG_ROW_SIZE register field + * for Carrizo. Specifies the size of dram row in bytes. + * This should match up with NOOFCOLS field in + * MC_ARB_RAMCFG (ROW_SIZE = 4 * 2 ^^ columns). + * This register DMIF_ADDR_CALC is not used by the + * hardware as it is only used for addrlib assertions. + * POSSIBLE VALUES: + * 00 - ADDR_CONFIG_1KB_ROW: Treat 1KB as DRAM row + * boundary + * 01 - ADDR_CONFIG_2KB_ROW: Treat 2KB as DRAM row + * boundary + * 02 - ADDR_CONFIG_4KB_ROW: Treat 4KB as DRAM row + * boundary */ + switch (cp80->base.raw_size) { + case 4096: /*4 KB */ + set_reg_field_value( + lpt_control, + 2, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_ROW_SIZE); + break; + case 2048: + set_reg_field_value( + lpt_control, + 1, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_ROW_SIZE); + break; + case 1024: + set_reg_field_value( + lpt_control, + 0, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_ROW_SIZE); + break; + default: + dm_logger_write( + cp80->base.ctx->logger, LOG_WARNING, + "%s: Invalid LPT ROW_SIZE!!!", + __func__); + break; + } + } else { + dm_logger_write( + cp80->base.ctx->logger, LOG_WARNING, + "%s: LPT MC Configuration is not provided", + __func__); + } + + return lpt_control; +} + +static bool is_source_bigger_than_epanel_size( + struct dce80_compressor *cp80, + uint32_t source_view_width, + uint32_t source_view_height) +{ + if (cp80->base.embedded_panel_h_size != 0 && + cp80->base.embedded_panel_v_size != 0 && + ((source_view_width * source_view_height) > + (cp80->base.embedded_panel_h_size * + cp80->base.embedded_panel_v_size))) + return true; + + return false; +} + +static uint32_t align_to_chunks_number_per_line( + struct dce80_compressor *cp80, + uint32_t pixels) +{ + return 256 * ((pixels + 255) / 256); +} + +static void wait_for_fbc_state_changed( + struct dce80_compressor *cp80, + bool enabled) +{ + uint8_t counter = 0; + uint32_t addr = mmFBC_STATUS; + uint32_t value; + + while (counter < 10) { + value = dm_read_reg(cp80->base.ctx, addr); + if (get_reg_field_value( + value, + FBC_STATUS, + FBC_ENABLE_STATUS) == enabled) + break; + udelay(10); + counter++; + } + + if (counter == 10) { + dm_logger_write( + cp80->base.ctx->logger, LOG_WARNING, + "%s: wait counter exceeded, changes to HW not applied", + __func__); + } +} + +void dce80_compressor_power_up_fbc(struct compressor *compressor) +{ + uint32_t value; + uint32_t addr; + + addr = mmFBC_CNTL; + value = dm_read_reg(compressor->ctx, addr); + set_reg_field_value(value, 0, FBC_CNTL, FBC_GRPH_COMP_EN); + set_reg_field_value(value, 1, FBC_CNTL, FBC_EN); + set_reg_field_value(value, 2, FBC_CNTL, FBC_COHERENCY_MODE); + dm_write_reg(compressor->ctx, addr, value); + + addr = mmFBC_COMP_MODE; + value = dm_read_reg(compressor->ctx, addr); + set_reg_field_value(value, 1, FBC_COMP_MODE, FBC_RLE_EN); + set_reg_field_value(value, 1, FBC_COMP_MODE, FBC_DPCM4_RGB_EN); + set_reg_field_value(value, 1, FBC_COMP_MODE, FBC_IND_EN); + dm_write_reg(compressor->ctx, addr, value); + + addr = mmFBC_COMP_CNTL; + value = dm_read_reg(compressor->ctx, addr); + set_reg_field_value(value, 1, FBC_COMP_CNTL, FBC_DEPTH_RGB08_EN); + dm_write_reg(compressor->ctx, addr, value); + /*FBC_MIN_COMPRESSION 0 ==> 2:1 */ + /* 1 ==> 4:1 */ + /* 2 ==> 8:1 */ + /* 0xF ==> 1:1 */ + set_reg_field_value(value, 0xF, FBC_COMP_CNTL, FBC_MIN_COMPRESSION); + dm_write_reg(compressor->ctx, addr, value); + compressor->min_compress_ratio = FBC_COMPRESS_RATIO_1TO1; + + value = 0; + dm_write_reg(compressor->ctx, mmFBC_IND_LUT0, value); + + value = 0xFFFFFF; + dm_write_reg(compressor->ctx, mmFBC_IND_LUT1, value); +} + +void dce80_compressor_enable_fbc( + struct compressor *compressor, + uint32_t paths_num, + struct compr_addr_and_pitch_params *params) +{ + struct dce80_compressor *cp80 = TO_DCE80_COMPRESSOR(compressor); + + if (compressor->options.bits.FBC_SUPPORT && + (compressor->options.bits.DUMMY_BACKEND == 0) && + (!dce80_compressor_is_fbc_enabled_in_hw(compressor, NULL)) && + (!is_source_bigger_than_epanel_size( + cp80, + params->source_view_width, + params->source_view_height))) { + + uint32_t addr; + uint32_t value; + + /* Before enabling FBC first need to enable LPT if applicable + * LPT state should always be changed (enable/disable) while FBC + * is disabled */ + if (compressor->options.bits.LPT_SUPPORT && (paths_num < 2) && + (params->source_view_width * + params->source_view_height <= + dce8_one_lpt_channel_max_resolution)) { + dce80_compressor_enable_lpt(compressor); + } + + addr = mmFBC_CNTL; + value = dm_read_reg(compressor->ctx, addr); + set_reg_field_value(value, 1, FBC_CNTL, FBC_GRPH_COMP_EN); + set_reg_field_value( + value, + params->inst, + FBC_CNTL, FBC_SRC_SEL); + dm_write_reg(compressor->ctx, addr, value); + + /* Keep track of enum controller_id FBC is attached to */ + compressor->is_enabled = true; + compressor->attached_inst = params->inst; + cp80->offsets = reg_offsets[params->inst - 1]; + + /*Toggle it as there is bug in HW */ + set_reg_field_value(value, 0, FBC_CNTL, FBC_GRPH_COMP_EN); + dm_write_reg(compressor->ctx, addr, value); + set_reg_field_value(value, 1, FBC_CNTL, FBC_GRPH_COMP_EN); + dm_write_reg(compressor->ctx, addr, value); + + wait_for_fbc_state_changed(cp80, true); + } +} + +void dce80_compressor_disable_fbc(struct compressor *compressor) +{ + struct dce80_compressor *cp80 = TO_DCE80_COMPRESSOR(compressor); + + if (compressor->options.bits.FBC_SUPPORT && + dce80_compressor_is_fbc_enabled_in_hw(compressor, NULL)) { + uint32_t reg_data; + /* Turn off compression */ + reg_data = dm_read_reg(compressor->ctx, mmFBC_CNTL); + set_reg_field_value(reg_data, 0, FBC_CNTL, FBC_GRPH_COMP_EN); + dm_write_reg(compressor->ctx, mmFBC_CNTL, reg_data); + + /* Reset enum controller_id to undefined */ + compressor->attached_inst = 0; + compressor->is_enabled = false; + + /* Whenever disabling FBC make sure LPT is disabled if LPT + * supported */ + if (compressor->options.bits.LPT_SUPPORT) + dce80_compressor_disable_lpt(compressor); + + wait_for_fbc_state_changed(cp80, false); + } +} + +bool dce80_compressor_is_fbc_enabled_in_hw( + struct compressor *compressor, + uint32_t *inst) +{ + /* Check the hardware register */ + uint32_t value; + + value = dm_read_reg(compressor->ctx, mmFBC_STATUS); + if (get_reg_field_value(value, FBC_STATUS, FBC_ENABLE_STATUS)) { + if (inst != NULL) + *inst = compressor->attached_inst; + return true; + } + + value = dm_read_reg(compressor->ctx, mmFBC_CNTL); + if (get_reg_field_value(value, FBC_CNTL, FBC_GRPH_COMP_EN)) { + if (inst != NULL) + *inst = compressor->attached_inst; + return true; + } + + return false; +} + +bool dce80_compressor_is_lpt_enabled_in_hw(struct compressor *compressor) +{ + /* Check the hardware register */ + uint32_t value = dm_read_reg(compressor->ctx, + mmLOW_POWER_TILING_CONTROL); + + return get_reg_field_value( + value, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_ENABLE); +} + +void dce80_compressor_program_compressed_surface_address_and_pitch( + struct compressor *compressor, + struct compr_addr_and_pitch_params *params) +{ + struct dce80_compressor *cp80 = TO_DCE80_COMPRESSOR(compressor); + uint32_t value = 0; + uint32_t fbc_pitch = 0; + uint32_t compressed_surf_address_low_part = + compressor->compr_surface_address.addr.low_part; + + /* Clear content first. */ + dm_write_reg( + compressor->ctx, + DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS_HIGH), + 0); + dm_write_reg(compressor->ctx, + DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS), 0); + + if (compressor->options.bits.LPT_SUPPORT) { + uint32_t lpt_alignment = lpt_size_alignment(cp80); + + if (lpt_alignment != 0) { + compressed_surf_address_low_part = + ((compressed_surf_address_low_part + + (lpt_alignment - 1)) / lpt_alignment) + * lpt_alignment; + } + } + + /* Write address, HIGH has to be first. */ + dm_write_reg(compressor->ctx, + DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS_HIGH), + compressor->compr_surface_address.addr.high_part); + dm_write_reg(compressor->ctx, + DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS), + compressed_surf_address_low_part); + + fbc_pitch = align_to_chunks_number_per_line( + cp80, + params->source_view_width); + + if (compressor->min_compress_ratio == FBC_COMPRESS_RATIO_1TO1) + fbc_pitch = fbc_pitch / 8; + else + dm_logger_write( + compressor->ctx->logger, LOG_WARNING, + "%s: Unexpected DCE8 compression ratio", + __func__); + + /* Clear content first. */ + dm_write_reg(compressor->ctx, DCP_REG(mmGRPH_COMPRESS_PITCH), 0); + + /* Write FBC Pitch. */ + set_reg_field_value( + value, + fbc_pitch, + GRPH_COMPRESS_PITCH, + GRPH_COMPRESS_PITCH); + dm_write_reg(compressor->ctx, DCP_REG(mmGRPH_COMPRESS_PITCH), value); + +} + +void dce80_compressor_disable_lpt(struct compressor *compressor) +{ + struct dce80_compressor *cp80 = TO_DCE80_COMPRESSOR(compressor); + uint32_t value; + uint32_t addr; + uint32_t inx; + + /* Disable all pipes LPT Stutter */ + for (inx = 0; inx < 3; inx++) { + value = + dm_read_reg( + compressor->ctx, + DMIF_REG(mmDPG_PIPE_STUTTER_CONTROL_NONLPTCH)); + set_reg_field_value( + value, + 0, + DPG_PIPE_STUTTER_CONTROL_NONLPTCH, + STUTTER_ENABLE_NONLPTCH); + dm_write_reg( + compressor->ctx, + DMIF_REG(mmDPG_PIPE_STUTTER_CONTROL_NONLPTCH), + value); + } + + /* Disable LPT */ + addr = mmLOW_POWER_TILING_CONTROL; + value = dm_read_reg(compressor->ctx, addr); + set_reg_field_value( + value, + 0, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_ENABLE); + dm_write_reg(compressor->ctx, addr, value); + + /* Clear selection of Channel(s) containing Compressed Surface */ + addr = mmGMCON_LPT_TARGET; + value = dm_read_reg(compressor->ctx, addr); + set_reg_field_value( + value, + 0xFFFFFFFF, + GMCON_LPT_TARGET, + STCTRL_LPT_TARGET); + dm_write_reg(compressor->ctx, mmGMCON_LPT_TARGET, value); +} + +void dce80_compressor_enable_lpt(struct compressor *compressor) +{ + struct dce80_compressor *cp80 = TO_DCE80_COMPRESSOR(compressor); + uint32_t value; + uint32_t addr; + uint32_t value_control; + uint32_t channels; + + /* Enable LPT Stutter from Display pipe */ + value = dm_read_reg(compressor->ctx, + DMIF_REG(mmDPG_PIPE_STUTTER_CONTROL_NONLPTCH)); + set_reg_field_value( + value, + 1, + DPG_PIPE_STUTTER_CONTROL_NONLPTCH, + STUTTER_ENABLE_NONLPTCH); + dm_write_reg(compressor->ctx, + DMIF_REG(mmDPG_PIPE_STUTTER_CONTROL_NONLPTCH), value); + + /* Selection of Channel(s) containing Compressed Surface: 0xfffffff + * will disable LPT. + * STCTRL_LPT_TARGETn corresponds to channel n. */ + addr = mmLOW_POWER_TILING_CONTROL; + value_control = dm_read_reg(compressor->ctx, addr); + channels = get_reg_field_value(value_control, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_MODE); + + addr = mmGMCON_LPT_TARGET; + value = dm_read_reg(compressor->ctx, addr); + set_reg_field_value( + value, + channels + 1, /* not mentioned in programming guide, + but follow DCE8.1 */ + GMCON_LPT_TARGET, + STCTRL_LPT_TARGET); + dm_write_reg(compressor->ctx, addr, value); + + /* Enable LPT */ + addr = mmLOW_POWER_TILING_CONTROL; + value = dm_read_reg(compressor->ctx, addr); + set_reg_field_value( + value, + 1, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_ENABLE); + dm_write_reg(compressor->ctx, addr, value); +} + +void dce80_compressor_program_lpt_control( + struct compressor *compressor, + struct compr_addr_and_pitch_params *params) +{ + struct dce80_compressor *cp80 = TO_DCE80_COMPRESSOR(compressor); + uint32_t rows_per_channel; + uint32_t lpt_alignment; + uint32_t source_view_width; + uint32_t source_view_height; + uint32_t lpt_control = 0; + + if (!compressor->options.bits.LPT_SUPPORT) + return; + + lpt_control = dm_read_reg(compressor->ctx, + mmLOW_POWER_TILING_CONTROL); + + /* POSSIBLE VALUES for Low Power Tiling Mode: + * 00 - Use channel 0 + * 01 - Use Channel 0 and 1 + * 02 - Use Channel 0,1,2,3 + * 03 - reserved */ + switch (compressor->lpt_channels_num) { + /* case 2: + * Use Channel 0 & 1 / Not used for DCE 11 */ + case 1: + /*Use Channel 0 for LPT for DCE 11 */ + set_reg_field_value( + lpt_control, + 0, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_MODE); + break; + default: + dm_logger_write( + compressor->ctx->logger, LOG_WARNING, + "%s: Invalid selected DRAM channels for LPT!!!", + __func__); + break; + } + + lpt_control = lpt_memory_control_config(cp80, lpt_control); + + /* Program LOW_POWER_TILING_ROWS_PER_CHAN field which depends on + * FBC compressed surface pitch. + * LOW_POWER_TILING_ROWS_PER_CHAN = Roundup ((Surface Height * + * Surface Pitch) / (Row Size * Number of Channels * + * Number of Banks)). */ + rows_per_channel = 0; + lpt_alignment = lpt_size_alignment(cp80); + source_view_width = + align_to_chunks_number_per_line( + cp80, + params->source_view_width); + source_view_height = (params->source_view_height + 1) & (~0x1); + + if (lpt_alignment != 0) { + rows_per_channel = source_view_width * source_view_height * 4; + rows_per_channel = + (rows_per_channel % lpt_alignment) ? + (rows_per_channel / lpt_alignment + 1) : + rows_per_channel / lpt_alignment; + } + + set_reg_field_value( + lpt_control, + rows_per_channel, + LOW_POWER_TILING_CONTROL, + LOW_POWER_TILING_ROWS_PER_CHAN); + + dm_write_reg(compressor->ctx, + mmLOW_POWER_TILING_CONTROL, lpt_control); +} + +/* + * DCE 11 Frame Buffer Compression Implementation + */ + +void dce80_compressor_set_fbc_invalidation_triggers( + struct compressor *compressor, + uint32_t fbc_trigger) +{ + /* Disable region hit event, FBC_MEMORY_REGION_MASK = 0 (bits 16-19) + * for DCE 11 regions cannot be used - does not work with S/G + */ + uint32_t addr = mmFBC_CLIENT_REGION_MASK; + uint32_t value = dm_read_reg(compressor->ctx, addr); + + set_reg_field_value( + value, + 0, + FBC_CLIENT_REGION_MASK, + FBC_MEMORY_REGION_MASK); + dm_write_reg(compressor->ctx, addr, value); + + /* Setup events when to clear all CSM entries (effectively marking + * current compressed data invalid) + * For DCE 11 CSM metadata 11111 means - "Not Compressed" + * Used as the initial value of the metadata sent to the compressor + * after invalidation, to indicate that the compressor should attempt + * to compress all chunks on the current pass. Also used when the chunk + * is not successfully written to memory. + * When this CSM value is detected, FBC reads from the uncompressed + * buffer. Set events according to passed in value, these events are + * valid for DCE8: + * - bit 0 - display register updated + * - bit 28 - memory write from any client except from MCIF + * - bit 29 - CG static screen signal is inactive + * In addition, DCE8.1 also needs to set new DCE8.1 specific events + * that are used to trigger invalidation on certain register changes, + * for example enabling of Alpha Compression may trigger invalidation of + * FBC once bit is set. These events are as follows: + * - Bit 2 - FBC_GRPH_COMP_EN register updated + * - Bit 3 - FBC_SRC_SEL register updated + * - Bit 4 - FBC_MIN_COMPRESSION register updated + * - Bit 5 - FBC_ALPHA_COMP_EN register updated + * - Bit 6 - FBC_ZERO_ALPHA_CHUNK_SKIP_EN register updated + * - Bit 7 - FBC_FORCE_COPY_TO_COMP_BUF register updated + */ + addr = mmFBC_IDLE_FORCE_CLEAR_MASK; + value = dm_read_reg(compressor->ctx, addr); + set_reg_field_value( + value, + fbc_trigger | + FBC_IDLE_FORCE_GRPH_COMP_EN | + FBC_IDLE_FORCE_SRC_SEL_CHANGE | + FBC_IDLE_FORCE_MIN_COMPRESSION_CHANGE | + FBC_IDLE_FORCE_ALPHA_COMP_EN | + FBC_IDLE_FORCE_ZERO_ALPHA_CHUNK_SKIP_EN | + FBC_IDLE_FORCE_FORCE_COPY_TO_COMP_BUF, + FBC_IDLE_FORCE_CLEAR_MASK, + FBC_IDLE_FORCE_CLEAR_MASK); + dm_write_reg(compressor->ctx, addr, value); +} + +bool dce80_compressor_construct(struct dce80_compressor *compressor, + struct dc_context *ctx) +{ + struct dc_bios *bp = ctx->dc_bios; + struct embedded_panel_info panel_info; + + compressor->base.options.bits.FBC_SUPPORT = true; + compressor->base.options.bits.LPT_SUPPORT = true; + /* For DCE 11 always use one DRAM channel for LPT */ + compressor->base.lpt_channels_num = 1; + compressor->base.options.bits.DUMMY_BACKEND = false; + + /* Check if this system has more than 1 DRAM channel; if only 1 then LPT + * should not be supported */ + if (compressor->base.memory_bus_width == 64) + compressor->base.options.bits.LPT_SUPPORT = false; + + compressor->base.options.bits.CLK_GATING_DISABLED = false; + + compressor->base.ctx = ctx; + compressor->base.embedded_panel_h_size = 0; + compressor->base.embedded_panel_v_size = 0; + compressor->base.memory_bus_width = ctx->asic_id.vram_width; + compressor->base.allocated_size = 0; + compressor->base.preferred_requested_size = 0; + compressor->base.min_compress_ratio = FBC_COMPRESS_RATIO_INVALID; + compressor->base.options.raw = 0; + compressor->base.banks_num = 0; + compressor->base.raw_size = 0; + compressor->base.channel_interleave_size = 0; + compressor->base.dram_channels_num = 0; + compressor->base.lpt_channels_num = 0; + compressor->base.attached_inst = 0; + compressor->base.is_enabled = false; + + if (BP_RESULT_OK == + bp->funcs->get_embedded_panel_info(bp, &panel_info)) { + compressor->base.embedded_panel_h_size = + panel_info.lcd_timing.horizontal_addressable; + compressor->base.embedded_panel_v_size = + panel_info.lcd_timing.vertical_addressable; + } + return true; +} + +struct compressor *dce80_compressor_create(struct dc_context *ctx) +{ + struct dce80_compressor *cp80 = + dm_alloc(sizeof(struct dce80_compressor)); + + if (!cp80) + return NULL; + + if (dce80_compressor_construct(cp80, ctx)) + return &cp80->base; + + BREAK_TO_DEBUGGER(); + dm_free(cp80); + return NULL; +} + +void dce80_compressor_destroy(struct compressor **compressor) +{ + dm_free(TO_DCE80_COMPRESSOR(*compressor)); + *compressor = NULL; +} |