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drm/tegra: gem: Make __tegra_gem_mmap() available more widely

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This function allows mapping a GEM object into a virtual memory address
space, which makes it useful outside of the GEM code.

While at it, rename the function so it doesn't clash with the function
that implements the DRM_TEGRA_GEM_MMAP IOCTL.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2018-02-07 18:45:55 +01:00
parent b6d7974d10
commit 04c0746663
2 changed files with 4 additions and 4 deletions
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7
drivers/gpu/drm/tegra/gem.c
View File

@ -459,8 +459,7 @@ const struct vm_operations_struct tegra_bo_vm_ops = {
.close = drm_gem_vm_close,
};
static int tegra_gem_mmap(struct drm_gem_object *gem,
struct vm_area_struct *vma)
int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma)
{
struct tegra_bo *bo = to_tegra_bo(gem);
@ -507,7 +506,7 @@ int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma)
gem = vma->vm_private_data;
return tegra_gem_mmap(gem, vma);
return __tegra_gem_mmap(gem, vma);
}
static struct sg_table *
@ -600,7 +599,7 @@ static int tegra_gem_prime_mmap(struct dma_buf *buf, struct vm_area_struct *vma)
if (err < 0)
return err;
return tegra_gem_mmap(gem, vma);
return __tegra_gem_mmap(gem, vma);
}
static void *tegra_gem_prime_vmap(struct dma_buf *buf)

1
drivers/gpu/drm/tegra/gem.h
View File

@ -70,6 +70,7 @@ int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
extern const struct vm_operations_struct tegra_bo_vm_ops;
int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma);
int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);
struct dma_buf *tegra_gem_prime_export(struct drm_device *drm,