drm/amdgpu: add cgs_interface for pg and cg

v3: check whether ip_blocks is enable
v2: add break in the for loop.
Signed-off-by: Rex zhu <rezhu@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c

@@ -614,6 +614,49 @@ static int amdgpu_cgs_irq_put(void *cgs_device, unsigned src_id, unsigned type)
 	return amdgpu_irq_put(adev, adev->irq.sources[src_id], type);
 }
 
+int amdgpu_cgs_set_clockgating_state(void *cgs_device,
+				  enum amd_ip_block_type block_type,
+				  enum amd_clockgating_state state)
+{
+	CGS_FUNC_ADEV;
+	int i, r = -1;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_block_status[i].valid)
+			continue;
+
+		if (adev->ip_blocks[i].type == block_type) {
+			r = adev->ip_blocks[i].funcs->set_clockgating_state(
+								(void *)adev,
+									state);
+			break;
+		}
+	}
+	return r;
+}
+
+int amdgpu_cgs_set_powergating_state(void *cgs_device,
+				  enum amd_ip_block_type block_type,
+				  enum amd_powergating_state state)
+{
+	CGS_FUNC_ADEV;
+	int i, r = -1;
+
+	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_block_status[i].valid)
+			continue;
+
+		if (adev->ip_blocks[i].type == block_type) {
+			r = adev->ip_blocks[i].funcs->set_powergating_state(
+								(void *)adev,
+									state);
+			break;
+		}
+	}
+	return r;
+}
+
+
 static uint32_t fw_type_convert(void *cgs_device, uint32_t fw_type)
 {
 	CGS_FUNC_ADEV;
@@ -760,7 +803,9 @@ static const struct cgs_ops amdgpu_cgs_ops = {
 	amdgpu_cgs_pm_request_engine,
 	amdgpu_cgs_pm_query_clock_limits,
 	amdgpu_cgs_set_camera_voltages,
-	amdgpu_cgs_get_firmware_info
+	amdgpu_cgs_get_firmware_info,
+	amdgpu_cgs_set_powergating_state,
+	amdgpu_cgs_set_clockgating_state
 };
 
 static const struct cgs_os_ops amdgpu_cgs_os_ops = {

drivers/gpu/drm/amd/include/cgs_common.h

@@ -24,6 +24,7 @@
 #ifndef _CGS_COMMON_H
 #define _CGS_COMMON_H
 
+#include "amd_shared.h"
 
 /**
  * enum cgs_gpu_mem_type - GPU memory types
@@ -484,6 +485,13 @@ typedef int (*cgs_get_firmware_info)(void *cgs_device,
 				     enum cgs_ucode_id type,
 				     struct cgs_firmware_info *info);
 
+typedef int(*cgs_set_powergating_state)(void *cgs_device,
+				  enum amd_ip_block_type block_type,
+				  enum amd_powergating_state state);
+
+typedef int(*cgs_set_clockgating_state)(void *cgs_device,
+				  enum amd_ip_block_type block_type,
+				  enum amd_clockgating_state state);
 
 struct cgs_ops {
 	/* memory management calls (similar to KFD interface) */
@@ -522,6 +530,9 @@ struct cgs_ops {
 	cgs_set_camera_voltages_t set_camera_voltages;
 	/* Firmware Info */
 	cgs_get_firmware_info get_firmware_info;
+	/* cg pg interface*/
+	cgs_set_powergating_state set_powergating_state;
+	cgs_set_clockgating_state set_clockgating_state;
 	/* ACPI (TODO) */
 };
 
@@ -605,5 +616,9 @@ struct cgs_device
 	CGS_CALL(set_camera_voltages,dev,mask,voltages)
 #define cgs_get_firmware_info(dev, type, info)	\
 	CGS_CALL(get_firmware_info, dev, type, info)
+#define cgs_set_powergating_state(dev, block_type, state)	\
+	CGS_CALL(set_powergating_state, dev, block_type, state)
+#define cgs_set_clockgating_state(dev, block_type, state)	\
+	CGS_CALL(set_clockgating_state, dev, block_type, state)
 
 #endif /* _CGS_COMMON_H */