From: Egbert Eich <eich@xxxxxxx>
Due to a missing initialization there was no way to map fbdev memory.
Thus for example using the Xserver with the fbdev driver failed.
This fix adds initialization for fix.smem_start and fix.smem_len
in the fb_info structure, which fixes this problem.
Signed-off-by: Egbert Eich <eich@xxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
drivers/gpu/drm/mgag200/mgag200_drv.h | 1 +
drivers/gpu/drm/mgag200/mgag200_fb.c | 7 +++++++
drivers/gpu/drm/mgag200/mgag200_mode.c | 3 ++-
3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index c88b6ec88dd2..a724e1931e87 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -250,6 +250,7 @@ void mgag200_modeset_fini(struct mga_device *mdev);
/* mgag200_fb.c */
int mgag200_fbdev_init(struct mga_device *mdev);
void mgag200_fbdev_fini(struct mga_device *mdev);
+void mgag200_fbdev_set_base(struct mga_device *mdev, unsigned long gpu_addr);
/* mgag200_main.c */
int mgag200_framebuffer_init(struct drm_device *dev,
diff --git a/drivers/gpu/drm/mgag200/mgag200_fb.c b/drivers/gpu/drm/mgag200/mgag200_fb.c
index 5d3b1fac906f..bb9a4c409dc0 100644
--- a/drivers/gpu/drm/mgag200/mgag200_fb.c
+++ b/drivers/gpu/drm/mgag200/mgag200_fb.c
@@ -315,3 +315,10 @@ void mgag200_fbdev_fini(struct mga_device *mdev)
mga_fbdev_destroy(mdev->dev, mdev->mfbdev);
}
+
+void mgag200_fbdev_set_base(struct mga_device *mdev, unsigned long gpu_addr)
+{
+ mdev->mfbdev->helper.fbdev->fix.smem_start =
+ mdev->mfbdev->helper.fbdev->apertures->ranges[0].base + gpu_addr;
+ mdev->mfbdev->helper.fbdev->fix.smem_len = mdev->mc.vram_size - gpu_addr;
+}
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index ca5a6df98fa3..afec8f190ee3 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -895,7 +895,8 @@ static int mga_crtc_do_set_base(struct drm_crtc *crtc,
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
if (ret)
DRM_ERROR("failed to kmap fbcon\n");
-
+ else
+ mgag200_fbdev_set_base(mdev, gpu_addr);
}
mgag200_bo_unreserve(bo);
--
2.13.2
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