diff options
| author | Egbert Eich <eich@suse.de> | 2014-06-11 14:59:55 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2015-11-11 12:27:31 +1000 |
| commit | 28fb4cb7fa6f63dc2fbdb5f2564dcbead8e3eee0 (patch) | |
| tree | 178c61d4b4f2fa3a56af57163a979d11c65d691b /drivers/gpu | |
| parent | 2565df91a2a834046024a9baed479dc97dcfc712 (diff) | |
| download | lwn-28fb4cb7fa6f63dc2fbdb5f2564dcbead8e3eee0.tar.gz lwn-28fb4cb7fa6f63dc2fbdb5f2564dcbead8e3eee0.zip | |
drm/ast: Initialized data needed to map fbdev memory
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.
Requested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: stable@vger.kernel.org
Signed-off-by: Egbert Eich <eich@suse.de>
[pulled from SuSE tree by me - airlied]
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/ast/ast_fb.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/ast/ast_main.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/ast/ast_mode.c | 2 |
4 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h index 86205a28e56b..05f6522c0457 100644 --- a/drivers/gpu/drm/ast/ast_drv.h +++ b/drivers/gpu/drm/ast/ast_drv.h @@ -315,6 +315,7 @@ int ast_framebuffer_init(struct drm_device *dev, int ast_fbdev_init(struct drm_device *dev); void ast_fbdev_fini(struct drm_device *dev); void ast_fbdev_set_suspend(struct drm_device *dev, int state); +void ast_fbdev_set_base(struct ast_private *ast, unsigned long gpu_addr); struct ast_bo { struct ttm_buffer_object bo; diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c index f31db28a684b..a37e7ea4a00c 100644 --- a/drivers/gpu/drm/ast/ast_fb.c +++ b/drivers/gpu/drm/ast/ast_fb.c @@ -365,3 +365,10 @@ void ast_fbdev_set_suspend(struct drm_device *dev, int state) drm_fb_helper_set_suspend(&ast->fbdev->helper, state); } + +void ast_fbdev_set_base(struct ast_private *ast, unsigned long gpu_addr) +{ + ast->fbdev->helper.fbdev->fix.smem_start = + ast->fbdev->helper.fbdev->apertures->ranges[0].base + gpu_addr; + ast->fbdev->helper.fbdev->fix.smem_len = ast->vram_size - gpu_addr; +} diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index 838217f8ce7d..541a610667ad 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -448,6 +448,7 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags) dev->mode_config.min_height = 0; dev->mode_config.preferred_depth = 24; dev->mode_config.prefer_shadow = 1; + dev->mode_config.fb_base = pci_resource_start(ast->dev->pdev, 0); if (ast->chip == AST2100 || ast->chip == AST2200 || diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index b7ee2634e47c..69d19f3304a5 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -547,6 +547,8 @@ static int ast_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 + ast_fbdev_set_base(ast, gpu_addr); } ast_bo_unreserve(bo); |