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Commit 0a4fef55 authored by Rex Zhu's avatar Rex Zhu Committed by Alex Deucher
Browse files

drm/amd/powerplay: need to notify system bios pcie device ready 



before request performance state.

Signed-off-by: default avatarRex Zhu <Rex.Zhu@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarKen Wang <Qingqing.Wang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 576b4401

drivers/gpu/drm/amd/powerplay/hwmgr/pp_acpi.c

+15 −1
Original line number Original line Diff line number Diff line
@@ -44,6 +44,20 @@ bool acpi_atcs_functions_supported(void *device, uint32_t index) 
	return result == 0 ? (output_buf.function_bits & (1 << (index - 1))) != 0 : false;

	return result == 0 ? (output_buf.function_bits & (1 << (index - 1))) != 0 : false;

}

}





bool acpi_atcs_notify_pcie_device_ready(void *device)

{

	int32_t temp_buffer = 1;



	return cgs_call_acpi_method(device, CGS_ACPI_METHOD_ATCS,

				ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION,

						&temp_buffer,

						NULL,

						0,

						sizeof(temp_buffer),

						0);

}





int acpi_pcie_perf_request(void *device, uint8_t perf_req, bool advertise)

int acpi_pcie_perf_request(void *device, uint8_t perf_req, bool advertise)

{

{

	struct atcs_pref_req_input atcs_input;

	struct atcs_pref_req_input atcs_input;
@@ -52,7 +66,7 @@ int acpi_pcie_perf_request(void *device, uint8_t perf_req, bool advertise) 
	int result;

	int result;

	struct cgs_system_info info = {0};

	struct cgs_system_info info = {0};





	if (!acpi_atcs_functions_supported(device, ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST))

	if( 0 != acpi_atcs_notify_pcie_device_ready(device))

		return -EINVAL;

		return -EINVAL;





	info.size = sizeof(struct cgs_system_info);

	info.size = sizeof(struct cgs_system_info);

drivers/gpu/drm/amd/powerplay/inc/pp_acpi.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -26,3 +26,4 @@ extern bool acpi_atcs_functions_supported(void *device, 
extern int acpi_pcie_perf_request(void *device,

extern int acpi_pcie_perf_request(void *device,

						uint8_t perf_req,

						uint8_t perf_req,

						bool advertise);

						bool advertise);

extern bool acpi_atcs_notify_pcie_device_ready(void *device);