mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
0c4aaeae44
v2: fix typo noticed by Dan Carpenter Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
115 lines
3.1 KiB
C
115 lines
3.1 KiB
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"
|
|
|
|
struct trinity_ps *trinity_get_ps(struct radeon_ps *rps);
|
|
struct trinity_power_info *trinity_get_pi(struct radeon_device *rdev);
|
|
|
|
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_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_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);
|
|
}
|