cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/radeon/trinity_smc.c

/*
 * Copyright 2012 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.
 *
 */

#include "drmP.h"
#include "radeon.h"
#include "trinityd.h"
#include "trinity_dpm.h"
#include "ppsmc.h"


static int trinity_notify_message_to_smu(struct radeon_device *rdev, u32 id) { int i; u32 v = 0; WREG32(SMC_MESSAGE_0, id); for (i = 0; i < rdev->usec_timeout; i++) { if (RREG32(SMC_RESP_0) != 0) break; udelay(1); } v = RREG32(SMC_RESP_0); if (v != 1) { if (v == 0xFF) { DRM_ERROR("SMC failed to handle the message!\n"); return -EINVAL; } else if (v == 0xFE) { DRM_ERROR("Unknown SMC message!\n"); return -EINVAL; } } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher114100.00%1100.00%
Total114100.00%1100.00%


int trinity_dpm_bapm_enable(struct radeon_device *rdev, bool enable) { if (enable) return trinity_notify_message_to_smu(rdev, PPSMC_MSG_EnableBAPM); else return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DisableBAPM); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher34100.00%1100.00%
Total34100.00%1100.00%


int trinity_dpm_config(struct radeon_device *rdev, bool enable) { if (enable) WREG32_SMC(SMU_SCRATCH0, 1); else WREG32_SMC(SMU_SCRATCH0, 0); return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_Config); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher40100.00%1100.00%
Total40100.00%1100.00%


int trinity_dpm_force_state(struct radeon_device *rdev, u32 n) { WREG32_SMC(SMU_SCRATCH0, n); return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher28100.00%1100.00%
Total28100.00%1100.00%


int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n) { WREG32_SMC(SMU_SCRATCH0, n); return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_N_LevelsDisabled); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher28100.00%1100.00%
Total28100.00%1100.00%


int trinity_uvd_dpm_config(struct radeon_device *rdev) { return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config); }

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PersonTokensPropCommitsCommitProp
Alex Deucher18100.00%1100.00%
Total18100.00%1100.00%


int trinity_dpm_no_forced_level(struct radeon_device *rdev) { return trinity_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher18100.00%1100.00%
Total18100.00%1100.00%


int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev, bool enable) { if (enable) return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_AllowVoltageAdjustment); else return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_RemoveVoltageAdjustment); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher34100.00%1100.00%
Total34100.00%1100.00%


int trinity_gfx_dynamic_mgpg_config(struct radeon_device *rdev) { return trinity_notify_message_to_smu(rdev, PPSMC_MSG_PG_SIMD_Config); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher18100.00%1100.00%
Total18100.00%1100.00%


void trinity_acquire_mutex(struct radeon_device *rdev) { int i; WREG32(SMC_INT_REQ, 1); for (i = 0; i < rdev->usec_timeout; i++) { if ((RREG32(SMC_INT_REQ) & 0xffff) == 1) break; udelay(1); } }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher56100.00%1100.00%
Total56100.00%1100.00%


void trinity_release_mutex(struct radeon_device *rdev) { WREG32(SMC_INT_REQ, 0); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher17100.00%1100.00%
Total17100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher421100.00%4100.00%
Total421100.00%4100.00%
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