/*
* Copyright 2018 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 "smumgr.h"
#include "smu9_smumgr.h"
#include "vega10_inc.h"
#include "soc15_common.h"
#include "pp_debug.h"
/* MP Apertures */
#define MP0_Public 0 x03800000
#define MP0_SRAM 0 x03900000
#define MP1_Public 0 x03b00000
#define MP1_SRAM 0 x03c00004
#define smnMP1_FIRMWARE_FLAGS 0 x3010028
bool smu9_is_smc_ram_running(struct pp_hwmgr *hwmgr)
{
struct amdgpu_device *adev = hwmgr->adev;
uint32_t mp1_fw_flags;
mp1_fw_flags = RREG32_PCIE(MP1_Public |
(smnMP1_FIRMWARE_FLAGS & 0 xffffffff));
if (mp1_fw_flags & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK)
return true ;
return false ;
}
/*
* Check if SMC has responded to previous message .
*
* @ param smumgr the address of the powerplay hardware manager .
* @ return TRUE SMC has responded , FALSE otherwise .
*/
static uint32_t smu9_wait_for_response(struct pp_hwmgr *hwmgr)
{
struct amdgpu_device *adev = hwmgr->adev;
uint32_t reg;
uint32_t ret;
if (hwmgr->pp_one_vf) {
reg = SOC15_REG_OFFSET(MP1, 0 , mmMP1_SMN_C2PMSG_103);
ret = phm_wait_for_register_unequal(hwmgr, reg,
0 , MP1_C2PMSG_103__CONTENT_MASK);
if (ret)
pr_err("No response from smu\n" );
return RREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_103);
} else {
reg = SOC15_REG_OFFSET(MP1, 0 , mmMP1_SMN_C2PMSG_90);
ret = phm_wait_for_register_unequal(hwmgr, reg,
0 , MP1_C2PMSG_90__CONTENT_MASK);
if (ret)
pr_err("No response from smu\n" );
return RREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_90);
}
}
/*
* Send a message to the SMC , and do not wait for its response .
* @ param smumgr the address of the powerplay hardware manager .
* @ param msg the message to send .
* @ return Always return 0 .
*/
static int smu9_send_msg_to_smc_without_waiting(struct pp_hwmgr *hwmgr,
uint16_t msg)
{
struct amdgpu_device *adev = hwmgr->adev;
if (hwmgr->pp_one_vf) {
WREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_101, msg);
} else {
WREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_66, msg);
}
return 0 ;
}
/*
* Send a message to the SMC , and wait for its response .
* @ param hwmgr the address of the powerplay hardware manager .
* @ param msg the message to send .
* @ return Always return 0 .
*/
int smu9_send_msg_to_smc(struct pp_hwmgr *hwmgr, uint16_t msg)
{
struct amdgpu_device *adev = hwmgr->adev;
uint32_t ret;
smu9_wait_for_response(hwmgr);
if (hwmgr->pp_one_vf)
WREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_103, 0 );
else
WREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_90, 0 );
smu9_send_msg_to_smc_without_waiting(hwmgr, msg);
ret = smu9_wait_for_response(hwmgr);
if (ret != 1 )
dev_err(adev->dev, "Failed to send message: 0x%x, ret value: 0x%x\n" , msg, ret);
return 0 ;
}
/*
* Send a message to the SMC with parameter
* @ param hwmgr : the address of the powerplay hardware manager .
* @ param msg : the message to send .
* @ param parameter : the parameter to send
* @ return Always return 0 .
*/
int smu9_send_msg_to_smc_with_parameter(struct pp_hwmgr *hwmgr,
uint16_t msg, uint32_t parameter)
{
struct amdgpu_device *adev = hwmgr->adev;
uint32_t ret;
smu9_wait_for_response(hwmgr);
if (hwmgr->pp_one_vf) {
WREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_103, 0 );
WREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_102, parameter);
} else {
WREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_90, 0 );
WREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_82, parameter);
}
smu9_send_msg_to_smc_without_waiting(hwmgr, msg);
ret = smu9_wait_for_response(hwmgr);
if (ret != 1 )
pr_err("Failed message: 0x%x, input parameter: 0x%x, error code: 0x%x\n" , msg, parameter, ret);
return 0 ;
}
uint32_t smu9_get_argument(struct pp_hwmgr *hwmgr)
{
struct amdgpu_device *adev = hwmgr->adev;
if (hwmgr->pp_one_vf)
return RREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_102);
else
return RREG32_SOC15(MP1, 0 , mmMP1_SMN_C2PMSG_82);
}
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