2 files changed, 70 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
index bd5b0c132368..96da4fc9c998 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
@@ -1871,6 +1871,33 @@ static int cz_read_sensor(struct pp_hwmgr *hwmgr, int idx,
 	}
 }
 
+static int cz_notify_cac_buffer_info(struct pp_hwmgr *hwmgr,
+					uint32_t virtual_addr_low,
+					uint32_t virtual_addr_hi,
+					uint32_t mc_addr_low,
+					uint32_t mc_addr_hi,
+					uint32_t size)
+{
+	smum_send_msg_to_smc_with_parameter(hwmgr,
+					PPSMC_MSG_DramAddrHiVirtual,
+					mc_addr_hi);
+	smum_send_msg_to_smc_with_parameter(hwmgr,
+					PPSMC_MSG_DramAddrLoVirtual,
+					mc_addr_low);
+	smum_send_msg_to_smc_with_parameter(hwmgr,
+					PPSMC_MSG_DramAddrHiPhysical,
+					virtual_addr_hi);
+	smum_send_msg_to_smc_with_parameter(hwmgr,
+					PPSMC_MSG_DramAddrLoPhysical,
+					virtual_addr_low);
+
+	smum_send_msg_to_smc_with_parameter(hwmgr,
+					PPSMC_MSG_DramBufferSize,
+					size);
+	return 0;
+}
+
+
 static const struct pp_hwmgr_func cz_hwmgr_funcs = {
 	.backend_init = cz_hwmgr_backend_init,
 	.backend_fini = cz_hwmgr_backend_fini,
@@ -1901,6 +1928,7 @@ static const struct pp_hwmgr_func cz_hwmgr_funcs = {
 	.dynamic_state_management_enable = cz_enable_dpm_tasks,
 	.power_state_set = cz_set_power_state_tasks,
 	.dynamic_state_management_disable = cz_disable_dpm_tasks,
+	.notify_cac_buffer_info = cz_notify_cac_buffer_info,
 };
 
 int cz_init_function_pointers(struct pp_hwmgr *hwmgr)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index 4826b2991b7e..e32f18a99074 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -4645,6 +4645,47 @@ static int smu7_avfs_control(struct pp_hwmgr *hwmgr, bool enable)
 	return 0;
 }
 
+static int smu7_notify_cac_buffer_info(struct pp_hwmgr *hwmgr,
+					uint32_t virtual_addr_low,
+					uint32_t virtual_addr_hi,
+					uint32_t mc_addr_low,
+					uint32_t mc_addr_hi,
+					uint32_t size)
+{
+	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
+
+	cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
+					data->soft_regs_start +
+					smum_get_offsetof(hwmgr,
+					SMU_SoftRegisters, DRAM_LOG_ADDR_H),
+					mc_addr_hi);
+
+	cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
+					data->soft_regs_start +
+					smum_get_offsetof(hwmgr,
+					SMU_SoftRegisters, DRAM_LOG_ADDR_L),
+					mc_addr_low);
+
+	cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
+					data->soft_regs_start +
+					smum_get_offsetof(hwmgr,
+					SMU_SoftRegisters, DRAM_LOG_PHY_ADDR_H),
+					virtual_addr_hi);
+
+	cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
+					data->soft_regs_start +
+					smum_get_offsetof(hwmgr,
+					SMU_SoftRegisters, DRAM_LOG_PHY_ADDR_L),
+					virtual_addr_low);
+
+	cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC,
+					data->soft_regs_start +
+					smum_get_offsetof(hwmgr,
+					SMU_SoftRegisters, DRAM_LOG_BUFF_SIZE),
+					size);
+	return 0;
+}
+
 static const struct pp_hwmgr_func smu7_hwmgr_funcs = {
 	.backend_init = &smu7_hwmgr_backend_init,
 	.backend_fini = &smu7_hwmgr_backend_fini,
@@ -4696,6 +4737,7 @@ static const struct pp_hwmgr_func smu7_hwmgr_funcs = {
 	.avfs_control = smu7_avfs_control,
 	.disable_smc_firmware_ctf = smu7_thermal_disable_alert,
 	.start_thermal_controller = smu7_start_thermal_controller,
+	.notify_cac_buffer_info = smu7_notify_cac_buffer_info,
 };
 
 uint8_t smu7_get_sleep_divider_id_from_clock(uint32_t clock,