From 8e4c7ddecab727321426e8d4a66596af917a9625 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 28 Oct 2019 14:47:38 -0400
Subject: drm/amdgpu: add a amdgpu_device_supports_baco helper
Git-commit: a69cba42b11ae5e8cede2ee6a61d9faf5187df9b
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
BACO - Bus Active, Chip Off
To check if a device supports BACO or not. This will be
used in determining when to enable runtime pm.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 15 +++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 31fe210a3380..cfa0c0a0bba3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1143,6 +1143,7 @@ void amdgpu_device_program_register_sequence(struct amdgpu_device *adev,
const u32 array_size);
bool amdgpu_device_is_px(struct drm_device *dev);
+bool amdgpu_device_supports_baco(struct drm_device *dev);
bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev,
struct amdgpu_device *peer_adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index c79409d32c6d..e02d2bb6334a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -153,6 +153,21 @@ bool amdgpu_device_is_px(struct drm_device *dev)
return false;
}
+/**
+ * amdgpu_device_supports_baco - Does the device support BACO
+ *
+ * @dev: drm_device pointer
+ *
+ * Returns true if the device supporte BACO,
+ * otherwise return false.
+ */
+bool amdgpu_device_supports_baco(struct drm_device *dev)
+{
+ struct amdgpu_device *adev = dev->dev_private;
+
+ return amdgpu_asic_supports_baco(adev);
+}
+
/**
* VRAM access helper functions.
*
--
2.28.0