cregit-Linux how code gets into the kernel

Release 4.15 drivers/gpu/drm/amd/display/dc/dce80/dce80_hw_sequencer.c

/*
 * 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 "dce80_hw_sequencer.h"

#include "dce/dce_hwseq.h"
#include "dce110/dce110_hw_sequencer.h"
#include "dce100/dce100_hw_sequencer.h"

/* include DCE8 register header files */
#include "dce/dce_8_0_d.h"
#include "dce/dce_8_0_sh_mask.h"


struct dce80_hw_seq_reg_offsets {
	
uint32_t crtc;
};


static const struct dce80_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
 ******************************************************************************/

/***************************PIPE_CONTROL***********************************/


static bool dce80_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 (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(mmMASTER_UPDATE_MODE, controller_id), 0); } if (bp_result == BP_RESULT_OK) return true; else return false; }

Contributors

PersonTokensPropCommitsCommitProp
Harry Wentland12799.22%150.00%
Bhawanpreet Lakha10.78%150.00%
Total128100.00%2100.00%


void dce80_hw_sequencer_construct(struct dc *dc) { dce110_hw_sequencer_construct(dc); dc->hwss.enable_display_power_gating = dce80_enable_display_power_gating; dc->hwss.pipe_control_lock = dce_pipe_control_lock; dc->hwss.set_bandwidth = dce100_set_bandwidth; }

Contributors

PersonTokensPropCommitsCommitProp
Harry Wentland3692.31%125.00%
Bhawanpreet Lakha12.56%125.00%
Dmytro Laktyushkin12.56%125.00%
Dave Airlie12.56%125.00%
Total39100.00%4100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Harry Wentland28497.59%120.00%
Jordan Lazare31.03%120.00%
Bhawanpreet Lakha20.69%120.00%
Dave Airlie10.34%120.00%
Dmytro Laktyushkin10.34%120.00%
Total291100.00%5100.00%
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