diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_aux.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_aux.h | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h new file mode 100644 index 0000000000..c850ed4928 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h @@ -0,0 +1,321 @@ +/* + * 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 + * + */ + +#ifndef __DAL_AUX_ENGINE_DCE110_H__ +#define __DAL_AUX_ENGINE_DCE110_H__ + +#include "gpio_service_interface.h" +#include "inc/hw/aux_engine.h" + +enum aux_return_code_type; + +#define AUX_COMMON_REG_LIST0(id)\ + SRI(AUX_CONTROL, DP_AUX, id), \ + SRI(AUX_ARB_CONTROL, DP_AUX, id), \ + SRI(AUX_SW_DATA, DP_AUX, id), \ + SRI(AUX_SW_CONTROL, DP_AUX, id), \ + SRI(AUX_INTERRUPT_CONTROL, DP_AUX, id), \ + SRI(AUX_DPHY_RX_CONTROL1, DP_AUX, id), \ + SRI(AUX_SW_STATUS, DP_AUX, id) + +#define AUX_COMMON_REG_LIST(id)\ + SRI(AUX_CONTROL, DP_AUX, id), \ + SRI(AUX_ARB_CONTROL, DP_AUX, id), \ + SRI(AUX_SW_DATA, DP_AUX, id), \ + SRI(AUX_SW_CONTROL, DP_AUX, id), \ + SRI(AUX_INTERRUPT_CONTROL, DP_AUX, id), \ + SRI(AUX_SW_STATUS, DP_AUX, id), \ + SR(AUXN_IMPCAL), \ + SR(AUXP_IMPCAL) + +struct dce110_aux_registers { + uint32_t AUX_CONTROL; + uint32_t AUX_ARB_CONTROL; + uint32_t AUX_SW_DATA; + uint32_t AUX_SW_CONTROL; + uint32_t AUX_INTERRUPT_CONTROL; + uint32_t AUX_DPHY_RX_CONTROL1; + uint32_t AUX_SW_STATUS; + uint32_t AUXN_IMPCAL; + uint32_t AUXP_IMPCAL; + + uint32_t AUX_RESET_MASK; +}; + +#define DCE_AUX_REG_FIELD_LIST(type)\ + type AUX_EN;\ + type AUX_RESET;\ + type AUX_RESET_DONE;\ + type AUX_REG_RW_CNTL_STATUS;\ + type AUX_SW_USE_AUX_REG_REQ;\ + type AUX_SW_DONE_USING_AUX_REG;\ + type AUX_SW_AUTOINCREMENT_DISABLE;\ + type AUX_SW_DATA_RW;\ + type AUX_SW_INDEX;\ + type AUX_SW_GO;\ + type AUX_SW_DATA;\ + type AUX_SW_REPLY_BYTE_COUNT;\ + type AUX_SW_DONE;\ + type AUX_SW_DONE_ACK;\ + type AUXN_IMPCAL_ENABLE;\ + type AUXP_IMPCAL_ENABLE;\ + type AUXN_IMPCAL_OVERRIDE_ENABLE;\ + type AUXP_IMPCAL_OVERRIDE_ENABLE;\ + type AUX_RX_TIMEOUT_LEN;\ + type AUX_RX_TIMEOUT_LEN_MUL;\ + type AUXN_CALOUT_ERROR_AK;\ + type AUXP_CALOUT_ERROR_AK;\ + type AUX_SW_START_DELAY;\ + type AUX_SW_WR_BYTES + +#define DCE10_AUX_MASK_SH_LIST(mask_sh)\ + AUX_SF(AUX_CONTROL, AUX_EN, mask_sh),\ + AUX_SF(AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ + AUX_SF(AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ + AUX_SF(AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ + AUX_SF(AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ + AUX_SF(AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ + AUX_SF(AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ + AUX_SF(AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ + AUX_SF(AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ + AUX_SF(AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ + AUX_SF(AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ + AUX_SF(AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ + AUX_SF(AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ + AUX_SF(AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_ENABLE, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_ENABLE, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_OVERRIDE_ENABLE, mask_sh) + +#define DCE_AUX_MASK_SH_LIST(mask_sh)\ + AUX_SF(AUX_CONTROL, AUX_EN, mask_sh),\ + AUX_SF(AUX_CONTROL, AUX_RESET, mask_sh),\ + AUX_SF(AUX_CONTROL, AUX_RESET_DONE, mask_sh),\ + AUX_SF(AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ + AUX_SF(AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ + AUX_SF(AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ + AUX_SF(AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ + AUX_SF(AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ + AUX_SF(AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ + AUX_SF(AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ + AUX_SF(AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ + AUX_SF(AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ + AUX_SF(AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ + AUX_SF(AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ + AUX_SF(AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ + AUX_SF(AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_ENABLE, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_ENABLE, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_OVERRIDE_ENABLE, mask_sh) + +#define DCE12_AUX_MASK_SH_LIST(mask_sh)\ + AUX_SF(DP_AUX0_AUX_CONTROL, AUX_EN, mask_sh),\ + AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET, mask_sh),\ + AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET_DONE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ + AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ + AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_ENABLE, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_ENABLE, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_OVERRIDE_ENABLE, mask_sh) + +/* DCN10 MASK */ +#define DCN10_AUX_MASK_SH_LIST(mask_sh)\ + AUX_SF(DP_AUX0_AUX_CONTROL, AUX_EN, mask_sh),\ + AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET, mask_sh),\ + AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET_DONE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ + AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ + AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_ENABLE, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_ENABLE, mask_sh),\ + AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, mask_sh),\ + AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_OVERRIDE_ENABLE, mask_sh) + +/* for all other DCN */ +#define DCN_AUX_MASK_SH_LIST(mask_sh)\ + AUX_SF(DP_AUX0_AUX_CONTROL, AUX_EN, mask_sh),\ + AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET, mask_sh),\ + AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET_DONE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ + AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ + AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ + AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ + AUX_SF(DP_AUX0_AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ + AUX_SF(DP_AUX0_AUX_DPHY_RX_CONTROL1, AUX_RX_TIMEOUT_LEN, mask_sh),\ + AUX_SF(DP_AUX0_AUX_DPHY_RX_CONTROL1, AUX_RX_TIMEOUT_LEN_MUL, mask_sh) + +#define AUX_SF(reg_name, field_name, post_fix)\ + .field_name = reg_name ## __ ## field_name ## post_fix + +enum { /* This is the timeout as defined in DP 1.2a, + * 2.3.4 "Detailed uPacket TX AUX CH State Description". + */ + AUX_TIMEOUT_PERIOD = 400, + + /* Ideally, the SW timeout should be just above 550usec + * which is programmed in HW. + * But the SW timeout of 600usec is not reliable, + * because on some systems, delay_in_microseconds() + * returns faster than it should. + * EPR #379763: by trial-and-error on different systems, + * 700usec is the minimum reliable SW timeout for polling + * the AUX_SW_STATUS.AUX_SW_DONE bit. + * This timeout expires *only* when there is + * AUX Error or AUX Timeout conditions - not during normal operation. + * During normal operation, AUX_SW_STATUS.AUX_SW_DONE bit is set + * at most within ~240usec. That means, + * increasing this timeout will not affect normal operation, + * and we'll timeout after + * SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD = 2400usec. + * This timeout is especially important for + * converters, resume from S3, and CTS. + */ + SW_AUX_TIMEOUT_PERIOD_MULTIPLIER = 6 +}; + +struct dce_aux { + uint32_t inst; + struct ddc *ddc; + struct dc_context *ctx; + /* following values are expressed in milliseconds */ + uint32_t delay; + uint32_t max_defer_write_retry; + + bool acquire_reset; + struct dce_aux_funcs *funcs; +}; + +struct dce110_aux_registers_mask { + DCE_AUX_REG_FIELD_LIST(uint32_t); +}; + +struct dce110_aux_registers_shift { + DCE_AUX_REG_FIELD_LIST(uint8_t); +}; + + +struct aux_engine_dce110 { + struct dce_aux base; + const struct dce110_aux_registers *regs; + const struct dce110_aux_registers_mask *mask; + const struct dce110_aux_registers_shift *shift; + struct { + uint32_t aux_control; + uint32_t aux_arb_control; + uint32_t aux_sw_data; + uint32_t aux_sw_control; + uint32_t aux_interrupt_control; + uint32_t aux_dphy_rx_control1; + uint32_t aux_dphy_rx_control0; + uint32_t aux_sw_status; + } addr; + uint32_t polling_timeout_period; +}; + +struct aux_engine_dce110_init_data { + uint32_t engine_id; + uint32_t timeout_period; + struct dc_context *ctx; + const struct dce110_aux_registers *regs; +}; + +struct dce_aux *dce110_aux_engine_construct(struct aux_engine_dce110 *aux_engine110, + struct dc_context *ctx, + uint32_t inst, + uint32_t timeout_period, + const struct dce110_aux_registers *regs, + + const struct dce110_aux_registers_mask *mask, + const struct dce110_aux_registers_shift *shift, + bool is_ext_aux_timeout_configurable); + +void dce110_engine_destroy(struct dce_aux **engine); + +bool dce110_aux_engine_acquire( + struct dce_aux *aux_engine, + struct ddc *ddc); + +int dce_aux_transfer_raw(struct ddc_service *ddc, + struct aux_payload *cmd, + enum aux_return_code_type *operation_result); + +int dce_aux_transfer_dmub_raw(struct ddc_service *ddc, + struct aux_payload *payload, + enum aux_return_code_type *operation_result); +bool dce_aux_transfer_with_retries(struct ddc_service *ddc, + struct aux_payload *cmd); + +struct dce_aux_funcs { + uint32_t (*configure_timeout) + (struct ddc_service *ddc, + uint32_t timeout); + void (*destroy) + (struct aux_engine **ptr); +}; + +#endif |