diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mmhubbub.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mmhubbub.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mmhubbub.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mmhubbub.c new file mode 100644 index 000000000000..1c4b171c68ad --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_mmhubbub.c @@ -0,0 +1,239 @@ +/* + * Copyright 2020 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 "reg_helper.h" +#include "resource.h" +#include "mcif_wb.h" +#include "dcn30_mmhubbub.h" + + +#define REG(reg)\ + mcif_wb30->mcif_wb_regs->reg + +#define CTX \ + mcif_wb30->base.ctx + +#undef FN +#define FN(reg_name, field_name) \ + mcif_wb30->mcif_wb_shift->field_name, mcif_wb30->mcif_wb_mask->field_name + +#define MCIF_ADDR(addr) (((unsigned long long)addr & 0xffffffffff) + 0xFE) >> 8 +#define MCIF_ADDR_HIGH(addr) (unsigned long long)addr >> 40 + +/* wbif programming guide: + * 1. set up wbif parameter: + * unsigned long long luma_address[4]; //4 frame buffer + * unsigned long long chroma_address[4]; + * unsigned int luma_pitch; + * unsigned int chroma_pitch; + * unsigned int warmup_pitch=0x10; //256B align, the page size is 4KB when it is 0x10 + * unsigned int slice_lines; //slice size + * unsigned int time_per_pixel; // time per pixel, in ns + * unsigned int arbitration_slice; // 0: 2048 bytes 1: 4096 bytes 2: 8192 Bytes + * unsigned int max_scaled_time; // used for QOS generation + * unsigned int swlock=0x0; + * unsigned int cli_watermark[4]; //4 group urgent watermark + * unsigned int pstate_watermark[4]; //4 group pstate watermark + * unsigned int sw_int_en; // Software interrupt enable, frame end and overflow + * unsigned int sw_slice_int_en; // slice end interrupt enable + * unsigned int sw_overrun_int_en; // overrun error interrupt enable + * unsigned int vce_int_en; // VCE interrupt enable, frame end and overflow + * unsigned int vce_slice_int_en; // VCE slice end interrupt enable, frame end and overflow + * + * 2. configure wbif register + * a. call mmhubbub_config_wbif() + * + * 3. Enable wbif + * call set_wbif_bufmgr_enable(); + * + * 4. wbif_dump_status(), option, for debug purpose + * the bufmgr status can show the progress of write back, can be used for debug purpose + */ + +static void mmhubbub3_warmup_mcif(struct mcif_wb *mcif_wb, + struct mcif_warmup_params *params) +{ + struct dcn30_mmhubbub *mcif_wb30 = TO_DCN30_MMHUBBUB(mcif_wb); + union large_integer start_address_shift = {.quad_part = params->start_address.quad_part >> 5}; + + /* Set base address and region size for warmup */ + REG_SET(MMHUBBUB_WARMUP_BASE_ADDR_HIGH, 0, MMHUBBUB_WARMUP_BASE_ADDR_HIGH, start_address_shift.high_part); + REG_SET(MMHUBBUB_WARMUP_BASE_ADDR_LOW, 0, MMHUBBUB_WARMUP_BASE_ADDR_LOW, start_address_shift.low_part); + REG_SET(MMHUBBUB_WARMUP_ADDR_REGION, 0, MMHUBBUB_WARMUP_ADDR_REGION, params->region_size >> 5); +// REG_SET(MMHUBBUB_WARMUP_P_VMID, 0, MMHUBBUB_WARMUP_P_VMID, params->p_vmid); + + /* Set address increment and enable warmup */ + REG_SET_3(MMHUBBUB_WARMUP_CONTROL_STATUS, 0, MMHUBBUB_WARMUP_EN, true, + MMHUBBUB_WARMUP_SW_INT_EN, true, + MMHUBBUB_WARMUP_INC_ADDR, params->address_increment >> 5); + + /* Wait for an interrupt to signal warmup is completed */ + REG_WAIT(MMHUBBUB_WARMUP_CONTROL_STATUS, MMHUBBUB_WARMUP_SW_INT_STATUS, 1, 20, 100); + + /* Acknowledge interrupt */ + REG_UPDATE(MMHUBBUB_WARMUP_CONTROL_STATUS, MMHUBBUB_WARMUP_SW_INT_ACK, 1); + + /* Disable warmup */ + REG_UPDATE(MMHUBBUB_WARMUP_CONTROL_STATUS, MMHUBBUB_WARMUP_EN, false); +} + +void mmhubbub3_config_mcif_buf(struct mcif_wb *mcif_wb, + struct mcif_buf_params *params, + unsigned int dest_height) +{ + struct dcn30_mmhubbub *mcif_wb30 = TO_DCN30_MMHUBBUB(mcif_wb); + + /* buffer address for packing mode or Luma in planar mode */ + REG_UPDATE(MCIF_WB_BUF_1_ADDR_Y, MCIF_WB_BUF_1_ADDR_Y, MCIF_ADDR(params->luma_address[0])); + REG_UPDATE(MCIF_WB_BUF_1_ADDR_Y_HIGH, MCIF_WB_BUF_1_ADDR_Y_HIGH, MCIF_ADDR_HIGH(params->luma_address[0])); + + /* buffer address for Chroma in planar mode (unused in packing mode) */ + REG_UPDATE(MCIF_WB_BUF_1_ADDR_C, MCIF_WB_BUF_1_ADDR_C, MCIF_ADDR(params->chroma_address[0])); + REG_UPDATE(MCIF_WB_BUF_1_ADDR_C_HIGH, MCIF_WB_BUF_1_ADDR_C_HIGH, MCIF_ADDR_HIGH(params->chroma_address[0])); + + /* buffer address for packing mode or Luma in planar mode */ + REG_UPDATE(MCIF_WB_BUF_2_ADDR_Y, MCIF_WB_BUF_2_ADDR_Y, MCIF_ADDR(params->luma_address[1])); + REG_UPDATE(MCIF_WB_BUF_2_ADDR_Y_HIGH, MCIF_WB_BUF_2_ADDR_Y_HIGH, MCIF_ADDR_HIGH(params->luma_address[1])); + + /* buffer address for Chroma in planar mode (unused in packing mode) */ + REG_UPDATE(MCIF_WB_BUF_2_ADDR_C, MCIF_WB_BUF_2_ADDR_C, MCIF_ADDR(params->chroma_address[1])); + REG_UPDATE(MCIF_WB_BUF_2_ADDR_C_HIGH, MCIF_WB_BUF_2_ADDR_C_HIGH, MCIF_ADDR_HIGH(params->chroma_address[1])); + + /* buffer address for packing mode or Luma in planar mode */ + REG_UPDATE(MCIF_WB_BUF_3_ADDR_Y, MCIF_WB_BUF_3_ADDR_Y, MCIF_ADDR(params->luma_address[2])); + REG_UPDATE(MCIF_WB_BUF_3_ADDR_Y_HIGH, MCIF_WB_BUF_3_ADDR_Y_HIGH, MCIF_ADDR_HIGH(params->luma_address[2])); + + /* buffer address for Chroma in planar mode (unused in packing mode) */ + REG_UPDATE(MCIF_WB_BUF_3_ADDR_C, MCIF_WB_BUF_3_ADDR_C, MCIF_ADDR(params->chroma_address[2])); + REG_UPDATE(MCIF_WB_BUF_3_ADDR_C_HIGH, MCIF_WB_BUF_3_ADDR_C_HIGH, MCIF_ADDR_HIGH(params->chroma_address[2])); + + /* buffer address for packing mode or Luma in planar mode */ + REG_UPDATE(MCIF_WB_BUF_4_ADDR_Y, MCIF_WB_BUF_4_ADDR_Y, MCIF_ADDR(params->luma_address[3])); + REG_UPDATE(MCIF_WB_BUF_4_ADDR_Y_HIGH, MCIF_WB_BUF_4_ADDR_Y_HIGH, MCIF_ADDR_HIGH(params->luma_address[3])); + + /* buffer address for Chroma in planar mode (unused in packing mode) */ + REG_UPDATE(MCIF_WB_BUF_4_ADDR_C, MCIF_WB_BUF_4_ADDR_C, MCIF_ADDR(params->chroma_address[3])); + REG_UPDATE(MCIF_WB_BUF_4_ADDR_C_HIGH, MCIF_WB_BUF_4_ADDR_C_HIGH, MCIF_ADDR_HIGH(params->chroma_address[3])); + + /* setup luma & chroma size + * should be enough to contain a whole frame Luma data, + * the programmed value is frame buffer size [27:8], 256-byte aligned + */ + REG_UPDATE(MCIF_WB_BUF_LUMA_SIZE, MCIF_WB_BUF_LUMA_SIZE, (params->luma_pitch>>8) * dest_height); + REG_UPDATE(MCIF_WB_BUF_CHROMA_SIZE, MCIF_WB_BUF_CHROMA_SIZE, (params->chroma_pitch>>8) * dest_height); + + /* enable address fence */ + REG_UPDATE(MCIF_WB_BUFMGR_SW_CONTROL, MCIF_WB_BUF_ADDR_FENCE_EN, 1); + + /* setup pitch, the programmed value is [15:8], 256B align */ + REG_UPDATE_2(MCIF_WB_BUF_PITCH, MCIF_WB_BUF_LUMA_PITCH, params->luma_pitch >> 8, + MCIF_WB_BUF_CHROMA_PITCH, params->chroma_pitch >> 8); +} + +static void mmhubbub3_config_mcif_arb(struct mcif_wb *mcif_wb, + struct mcif_arb_params *params) +{ + struct dcn30_mmhubbub *mcif_wb30 = TO_DCN30_MMHUBBUB(mcif_wb); + + /* Programmed by the video driver based on the CRTC timing (for DWB) */ + REG_UPDATE(MCIF_WB_ARBITRATION_CONTROL, MCIF_WB_TIME_PER_PIXEL, params->time_per_pixel); + + /* Programming dwb watermark */ + /* Watermark to generate urgent in MCIF_WB_CLI, value is determined by MCIF_WB_CLI_WATERMARK_MASK. */ + /* Program in ns. A formula will be provided in the pseudo code to calculate the value. */ + REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK_MASK, 0x0); + /* urgent_watermarkA */ + REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK, params->cli_watermark[0]); + REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK_MASK, 0x1); + /* urgent_watermarkB */ + REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK, params->cli_watermark[1]); + REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK_MASK, 0x2); + /* urgent_watermarkC */ + REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK, params->cli_watermark[2]); + REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK_MASK, 0x3); + /* urgent_watermarkD */ + REG_UPDATE(MCIF_WB_WATERMARK, MCIF_WB_CLI_WATERMARK, params->cli_watermark[3]); + + /* Programming nb pstate watermark */ + /* nbp_state_change_watermarkA */ + REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK, NB_PSTATE_CHANGE_WATERMARK_MASK, 0x0); + REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK, + NB_PSTATE_CHANGE_REFRESH_WATERMARK, params->pstate_watermark[0]); + /* nbp_state_change_watermarkB */ + REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK, NB_PSTATE_CHANGE_WATERMARK_MASK, 0x1); + REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK, + NB_PSTATE_CHANGE_REFRESH_WATERMARK, params->pstate_watermark[1]); + /* nbp_state_change_watermarkC */ + REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK, NB_PSTATE_CHANGE_WATERMARK_MASK, 0x2); + REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK, + NB_PSTATE_CHANGE_REFRESH_WATERMARK, params->pstate_watermark[2]); + /* nbp_state_change_watermarkD */ + REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK, NB_PSTATE_CHANGE_WATERMARK_MASK, 0x3); + REG_UPDATE(MCIF_WB_NB_PSTATE_LATENCY_WATERMARK, + NB_PSTATE_CHANGE_REFRESH_WATERMARK, params->pstate_watermark[3]); + + /* dram_speed_change_duration */ + REG_UPDATE(MCIF_WB_DRAM_SPEED_CHANGE_DURATION_VBI, + MCIF_WB_DRAM_SPEED_CHANGE_DURATION_VBI, params->dram_speed_change_duration); + + /* max_scaled_time */ + REG_UPDATE(MULTI_LEVEL_QOS_CTRL, MAX_SCALED_TIME_TO_URGENT, params->max_scaled_time); + + /* slice_lines */ + REG_UPDATE(MCIF_WB_BUFMGR_VCE_CONTROL, MCIF_WB_BUFMGR_SLICE_SIZE, params->slice_lines-1); + + /* Set arbitration unit for Luma/Chroma */ + /* arb_unit=2 should be chosen for more efficiency */ + /* Arbitration size, 0: 2048 bytes 1: 4096 bytes 2: 8192 Bytes */ + REG_UPDATE(MCIF_WB_ARBITRATION_CONTROL, MCIF_WB_CLIENT_ARBITRATION_SLICE, params->arbitration_slice); +} + +const struct mcif_wb_funcs dcn30_mmhubbub_funcs = { + .warmup_mcif = mmhubbub3_warmup_mcif, + .enable_mcif = mmhubbub2_enable_mcif, + .disable_mcif = mmhubbub2_disable_mcif, + .config_mcif_buf = mmhubbub3_config_mcif_buf, + .config_mcif_arb = mmhubbub3_config_mcif_arb, + .config_mcif_irq = mmhubbub2_config_mcif_irq, + .dump_frame = mcifwb2_dump_frame, +}; + +void dcn30_mmhubbub_construct(struct dcn30_mmhubbub *mcif_wb30, + struct dc_context *ctx, + const struct dcn30_mmhubbub_registers *mcif_wb_regs, + const struct dcn30_mmhubbub_shift *mcif_wb_shift, + const struct dcn30_mmhubbub_mask *mcif_wb_mask, + int inst) +{ + mcif_wb30->base.ctx = ctx; + + mcif_wb30->base.inst = inst; + mcif_wb30->base.funcs = &dcn30_mmhubbub_funcs; + + mcif_wb30->mcif_wb_regs = mcif_wb_regs; + mcif_wb30->mcif_wb_shift = mcif_wb_shift; + mcif_wb30->mcif_wb_mask = mcif_wb_mask; +} |