Use module parameter passed from user to initialize zfb start
address and size.
Change-Id: Idd0ae02ef8010ec36baa4b03b01981e97b3e748a
Signed-off-by: Feifei Xu <feifei...@amd.com>
Signed-off-by: Hawking Zhang <hawking.zh...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index dc8f221..519f09f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -859,6 +859,18 @@ static void amdgpu_device_check_arguments(struct
amdgpu_device *adev)
dev_warn(adev->dev, "lockup_timeout msut be > 0, adjusting to
10000\n");
amdgpu_lockup_timeout = 10000;
}
+
+ if (amdgpu_zfb[0] > 0) {
+ dev_warn(adev->dev,
+ "Zero Frame Buffer is enabled\n");
+ adev->gmc.enable_zfb = true;
+ adev->gmc.zfb_phys_addr = amdgpu_zfb[1] << 20;
+ adev->gmc.zfb_size = amdgpu_zfb[0] << 20;
+ } else {
+ adev->gmc.enable_zfb = false;
+ adev->gmc.zfb_phys_addr = 0;
+ adev->gmc.zfb_size = 0;
+ }
}
/**
--
2.7.4
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
