drm/amdgpu: introduce an interface to get clock gating status dynamically (6cb2d4e4) · Commits · 戴 / test

drivers/gpu/drm/amd/amdgpu/amdgpu.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -194,6 +194,7 @@ int amdgpu_set_clockgating_state(struct amdgpu_device *adev,
		int amdgpu_set_powergating_state(struct amdgpu_device *adev,
		enum amd_ip_block_type block_type,
		enum amd_powergating_state state);
		void amdgpu_get_clockgating_state(struct amdgpu_device adev, u32 flags);
		int amdgpu_wait_for_idle(struct amdgpu_device *adev,
		enum amd_ip_block_type block_type);
		bool amdgpu_is_idle(struct amdgpu_device *adev,

+12 −0

Original line number	Diff line number	Diff line
		@@ -1131,6 +1131,18 @@ int amdgpu_set_powergating_state(struct amdgpu_device *adev,
		return r;
		}

		void amdgpu_get_clockgating_state(struct amdgpu_device adev, u32 flags)
		{
		int i;

		for (i = 0; i < adev->num_ip_blocks; i++) {
		if (!adev->ip_blocks[i].status.valid)
		continue;
		if (adev->ip_blocks[i].version->funcs->get_clockgating_state)
		adev->ip_blocks[i].version->funcs->get_clockgating_state((void *)adev, flags);
		}
		}

		int amdgpu_wait_for_idle(struct amdgpu_device *adev,
		enum amd_ip_block_type block_type)
		{

+4 −0

Original line number	Diff line number	Diff line
		@@ -1365,6 +1365,10 @@ static int amdgpu_debugfs_pm_info(struct seq_file m, void data)
		struct drm_device *dev = node->minor->dev;
		struct amdgpu_device *adev = dev->dev_private;
		struct drm_device *ddev = adev->ddev;
		u32 flags = 0;

		amdgpu_get_clockgating_state(adev, &flags);
		seq_printf(m, "Clock Gating Flags Mask: 0x%x\n", flags);

		if (!adev->pm.dpm_enabled) {
		seq_printf(m, "dpm not enabled\n");

+2 −0

Original line number	Diff line number	Diff line
		@@ -214,6 +214,8 @@ struct amd_ip_funcs {
		/* enable/disable pg for the IP block */
		int (set_powergating_state)(void handle,
		enum amd_powergating_state state);
		/* get current clockgating status */
		void (get_clockgating_state)(void handle, u32 *flags);
		};

		#endif /* __AMD_SHARED_H__ */