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drm/msm: split out vram initialization 

We'll want to extend this a bit to handle also a reserved-memory
("stolen") region, so that drm/msm can take-over bootloader splash
screen.  First split it out into it's own fxn to reduce noise in
the following patch.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2015-03-03 15:04:24 -05:00
parent 564b687b03
commit 5bf9c0b614
1 changed files with 34 additions and 24 deletions
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58
drivers/gpu/drm/msm/msm_drv.c
View File

@ -182,29 +182,9 @@ static int get_mdp_ver(struct platform_device *pdev)
return 4;
}
static int msm_load(struct drm_device *dev, unsigned long flags)
static int msm_init_vram(struct drm_device *dev)
{
struct platform_device *pdev = dev->platformdev;
struct msm_drm_private *priv;
struct msm_kms *kms;
int ret;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
dev_err(dev->dev, "failed to allocate private data\n");
return -ENOMEM;
}
dev->dev_private = priv;
priv->wq = alloc_ordered_workqueue("msm", 0);
init_waitqueue_head(&priv->fence_event);
init_waitqueue_head(&priv->pending_crtcs_event);
INIT_LIST_HEAD(&priv->inactive_list);
INIT_LIST_HEAD(&priv->fence_cbs);
drm_mode_config_init(dev);
struct msm_drm_private *priv = dev->dev_private;
/* if we have no IOMMU, then we need to use carveout allocator.
* Grab the entire CMA chunk carved out in early startup in
@ -232,8 +212,7 @@ static int msm_load(struct drm_device *dev, unsigned long flags)
if (!p) {
dev_err(dev->dev, "failed to allocate VRAM\n");
priv->vram.paddr = 0;
ret = -ENOMEM;
goto fail;
return -ENOMEM;
}
dev_info(dev->dev, "VRAM: %08x->%08x\n",
@ -241,6 +220,37 @@ static int msm_load(struct drm_device *dev, unsigned long flags)
(uint32_t)(priv->vram.paddr + size));
}
return 0;
}
static int msm_load(struct drm_device *dev, unsigned long flags)
{
struct platform_device *pdev = dev->platformdev;
struct msm_drm_private *priv;
struct msm_kms *kms;
int ret;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
dev_err(dev->dev, "failed to allocate private data\n");
return -ENOMEM;
}
dev->dev_private = priv;
priv->wq = alloc_ordered_workqueue("msm", 0);
init_waitqueue_head(&priv->fence_event);
init_waitqueue_head(&priv->pending_crtcs_event);
INIT_LIST_HEAD(&priv->inactive_list);
INIT_LIST_HEAD(&priv->fence_cbs);
drm_mode_config_init(dev);
ret = msm_init_vram(dev);
if (ret)
goto fail;
platform_set_drvdata(pdev, dev);
/* Bind all our sub-components: */