diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce112/dce112_hw_sequencer.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce112/dce112_hw_sequencer.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce112/dce112_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce112/dce112_hw_sequencer.c new file mode 100644 index 000000000000..1e4a7c13f0ed --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dce112/dce112_hw_sequencer.c @@ -0,0 +1,163 @@ +/* + * Copyright 2015 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 "dc.h" +#include "core_types.h" +#include "dce112_hw_sequencer.h" + +#include "dce110/dce110_hw_sequencer.h" + +/* include DCE11.2 register header files */ +#include "dce/dce_11_2_d.h" +#include "dce/dce_11_2_sh_mask.h" + +struct dce112_hw_seq_reg_offsets { + uint32_t crtc; +}; + + +static const struct dce112_hw_seq_reg_offsets reg_offsets[] = { +{ + .crtc = (mmCRTC0_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL), +}, +{ + .crtc = (mmCRTC1_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL), +}, +{ + .crtc = (mmCRTC2_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL), +}, +{ + .crtc = (mmCRTC3_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL), +}, +{ + .crtc = (mmCRTC4_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL), +}, +{ + .crtc = (mmCRTC5_CRTC_GSL_CONTROL - mmCRTC_GSL_CONTROL), +} +}; +#define HW_REG_CRTC(reg, id)\ + (reg + reg_offsets[id].crtc) + +/******************************************************************************* + * Private definitions + ******************************************************************************/ + +static void dce112_init_pte(struct dc_context *ctx) +{ + uint32_t addr; + uint32_t value = 0; + uint32_t chunk_int = 0; + uint32_t chunk_mul = 0; + + addr = mmDVMM_PTE_REQ; + value = dm_read_reg(ctx, addr); + + chunk_int = get_reg_field_value( + value, + DVMM_PTE_REQ, + HFLIP_PTEREQ_PER_CHUNK_INT); + + chunk_mul = get_reg_field_value( + value, + DVMM_PTE_REQ, + HFLIP_PTEREQ_PER_CHUNK_MULTIPLIER); + + if (chunk_int != 0x4 || chunk_mul != 0x4) { + + set_reg_field_value( + value, + 255, + DVMM_PTE_REQ, + MAX_PTEREQ_TO_ISSUE); + + set_reg_field_value( + value, + 4, + DVMM_PTE_REQ, + HFLIP_PTEREQ_PER_CHUNK_INT); + + set_reg_field_value( + value, + 4, + DVMM_PTE_REQ, + HFLIP_PTEREQ_PER_CHUNK_MULTIPLIER); + + dm_write_reg(ctx, addr, value); + } +} + +static bool dce112_enable_display_power_gating( + struct dc *dc, + uint8_t controller_id, + struct dc_bios *dcb, + enum pipe_gating_control power_gating) +{ + enum bp_result bp_result = BP_RESULT_OK; + enum bp_pipe_control_action cntl; + struct dc_context *ctx = dc->ctx; + + if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) + return true; + + if (power_gating == PIPE_GATING_CONTROL_INIT) + cntl = ASIC_PIPE_INIT; + else if (power_gating == PIPE_GATING_CONTROL_ENABLE) + cntl = ASIC_PIPE_ENABLE; + else + cntl = ASIC_PIPE_DISABLE; + + if (power_gating != PIPE_GATING_CONTROL_INIT || controller_id == 0){ + + bp_result = dcb->funcs->enable_disp_power_gating( + dcb, controller_id + 1, cntl); + + /* Revert MASTER_UPDATE_MODE to 0 because bios sets it 2 + * by default when command table is called + */ + dm_write_reg(ctx, + HW_REG_CRTC(mmCRTC_MASTER_UPDATE_MODE, controller_id), + 0); + } + + if (power_gating != PIPE_GATING_CONTROL_ENABLE) + dce112_init_pte(ctx); + + if (bp_result == BP_RESULT_OK) + return true; + else + return false; +} + +void dce112_hw_sequencer_construct(struct dc *dc) +{ + /* All registers used by dce11.2 match those in dce11 in offset and + * structure + */ + dce110_hw_sequencer_construct(dc); + dc->hwss.enable_display_power_gating = dce112_enable_display_power_gating; +} + |