diff options
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/smumgr/smu9_smumgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/smumgr/smu9_smumgr.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu9_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smu9_smumgr.c new file mode 100644 index 000000000000..079fc8e8f709 --- /dev/null +++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu9_smumgr.c @@ -0,0 +1,150 @@ +/* + * 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 "vega10_inc.h" +#include "soc15_common.h" +#include "pp_debug.h" + + +/* MP Apertures */ +#define MP0_Public 0x03800000 +#define MP0_SRAM 0x03900000 +#define MP1_Public 0x03b00000 +#define MP1_SRAM 0x03c00004 + +#define smnMP1_FIRMWARE_FLAGS 0x3010028 + +bool smu9_is_smc_ram_running(struct pp_hwmgr *hwmgr) +{ + struct amdgpu_device *adev = hwmgr->adev; + uint32_t mp1_fw_flags; + + WREG32_SOC15(NBIF, 0, mmPCIE_INDEX2, + (MP1_Public | (smnMP1_FIRMWARE_FLAGS & 0xffffffff))); + + mp1_fw_flags = RREG32_SOC15(NBIF, 0, mmPCIE_DATA2); + + 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; + + 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; + + 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); + + 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) + pr_err("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); + + 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; + + return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_82); +} |