Orange Pi5 kernel

/*
 * 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 "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;
}
 
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);
}
 
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);
}
 
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);
}
 
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);
}
 
int trinity_uvd_dpm_config(struct radeon_device *rdev)
{
<------>return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config);
}
 
int trinity_dpm_no_forced_level(struct radeon_device *rdev)
{
<------>return trinity_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel);
}
 
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);
}
 
int trinity_gfx_dynamic_mgpg_config(struct radeon_device *rdev)
{
<------>return trinity_notify_message_to_smu(rdev, PPSMC_MSG_PG_SIMD_Config);
}
 
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);
<------>}
}
 
void trinity_release_mutex(struct radeon_device *rdev)
{
<------>WREG32(SMC_INT_REQ, 0);
}