diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubp.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubp.c new file mode 100644 index 000000000000..0a7d64306481 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubp.c @@ -0,0 +1,148 @@ +/* + * Copyright 2012-20 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_calcs.h" +#include "reg_helper.h" +#include "basics/conversion.h" +#include "dcn32_hubp.h" + +#define REG(reg)\ + hubp2->hubp_regs->reg + +#define CTX \ + hubp2->base.ctx + +#undef FN +#define FN(reg_name, field_name) \ + hubp2->hubp_shift->field_name, hubp2->hubp_mask->field_name + +void hubp32_update_force_pstate_disallow(struct hubp *hubp, bool pstate_disallow) +{ + struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp); + REG_UPDATE_2(UCLK_PSTATE_FORCE, + DATA_UCLK_PSTATE_FORCE_EN, pstate_disallow, + DATA_UCLK_PSTATE_FORCE_VALUE, 0); +} + +void hubp32_update_mall_sel(struct hubp *hubp, uint32_t mall_sel) +{ + struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp); + + // Also cache cursor in MALL if using MALL for SS + REG_UPDATE_2(DCHUBP_MALL_CONFIG, USE_MALL_SEL, mall_sel, + USE_MALL_FOR_CURSOR, mall_sel == 2 ? 1 : 0); +} + +void hubp32_prepare_subvp_buffering(struct hubp *hubp, bool enable) +{ + struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp); + REG_UPDATE(DCHUBP_VMPG_CONFIG, FORCE_ONE_ROW_FOR_FRAME, enable); + + /* Programming guide suggests CURSOR_REQ_MODE = 1 for SubVP: + * For Pstate change using the MALL with sub-viewport buffering, + * the cursor does not use the MALL (USE_MALL_FOR_CURSOR is ignored) + * and sub-viewport positioning by Display FW has to avoid the cursor + * requests to DRAM (set CURSOR_REQ_MODE = 1 to minimize this exclusion). + * + * CURSOR_REQ_MODE = 1 begins fetching cursor data at the beginning of display prefetch. + * Setting this should allow the sub-viewport position to always avoid the cursor because + * we do not allow the sub-viewport region to overlap with display prefetch (i.e. during blank). + */ + REG_UPDATE(CURSOR_CONTROL, CURSOR_REQ_MODE, enable); +} + +void hubp32_phantom_hubp_post_enable(struct hubp *hubp) +{ + uint32_t reg_val; + struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp); + + REG_UPDATE(DCHUBP_CNTL, HUBP_BLANK_EN, 1); + reg_val = REG_READ(DCHUBP_CNTL); + if (reg_val) { + /* init sequence workaround: in case HUBP is + * power gated, this wait would timeout. + * + * we just wrote reg_val to non-0, if it stay 0 + * it means HUBP is gated + */ + REG_WAIT(DCHUBP_CNTL, + HUBP_NO_OUTSTANDING_REQ, 1, + 1, 200); + } +} + +static struct hubp_funcs dcn32_hubp_funcs = { + .hubp_enable_tripleBuffer = hubp2_enable_triplebuffer, + .hubp_is_triplebuffer_enabled = hubp2_is_triplebuffer_enabled, + .hubp_program_surface_flip_and_addr = hubp3_program_surface_flip_and_addr, + .hubp_program_surface_config = hubp3_program_surface_config, + .hubp_is_flip_pending = hubp2_is_flip_pending, + .hubp_setup = hubp3_setup, + .hubp_setup_interdependent = hubp2_setup_interdependent, + .hubp_set_vm_system_aperture_settings = hubp3_set_vm_system_aperture_settings, + .set_blank = hubp2_set_blank, + .dcc_control = hubp3_dcc_control, + .mem_program_viewport = min_set_viewport, + .set_cursor_attributes = hubp2_cursor_set_attributes, + .set_cursor_position = hubp2_cursor_set_position, + .hubp_clk_cntl = hubp2_clk_cntl, + .hubp_vtg_sel = hubp2_vtg_sel, + .dmdata_set_attributes = hubp3_dmdata_set_attributes, + .dmdata_load = hubp2_dmdata_load, + .dmdata_status_done = hubp2_dmdata_status_done, + .hubp_read_state = hubp3_read_state, + .hubp_clear_underflow = hubp2_clear_underflow, + .hubp_set_flip_control_surface_gsl = hubp2_set_flip_control_surface_gsl, + .hubp_init = hubp3_init, + .set_unbounded_requesting = hubp31_set_unbounded_requesting, + .hubp_soft_reset = hubp31_soft_reset, + .hubp_in_blank = hubp1_in_blank, + .hubp_update_force_pstate_disallow = hubp32_update_force_pstate_disallow, + .phantom_hubp_post_enable = hubp32_phantom_hubp_post_enable, + .hubp_update_mall_sel = hubp32_update_mall_sel, + .hubp_prepare_subvp_buffering = hubp32_prepare_subvp_buffering, + .hubp_set_flip_int = hubp1_set_flip_int +}; + +bool hubp32_construct( + struct dcn20_hubp *hubp2, + struct dc_context *ctx, + uint32_t inst, + const struct dcn_hubp2_registers *hubp_regs, + const struct dcn_hubp2_shift *hubp_shift, + const struct dcn_hubp2_mask *hubp_mask) +{ + hubp2->base.funcs = &dcn32_hubp_funcs; + hubp2->base.ctx = ctx; + hubp2->hubp_regs = hubp_regs; + hubp2->hubp_shift = hubp_shift; + hubp2->hubp_mask = hubp_mask; + hubp2->base.inst = inst; + hubp2->base.opp_id = OPP_ID_INVALID; + hubp2->base.mpcc_id = 0xf; + + return true; +} |