From: Thierry Reding <treding@nvidia.com>
Date: Wed, 7 Feb 2018 18:45:55 +0100
Subject: drm/tegra: gem: Make __tegra_gem_mmap() available more widely
Git-commit: 04c0746663bd3ae3cce5e02d5b32c8ade2a833b8
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/tegra/gem.c | 7 +++----
drivers/gpu/drm/tegra/gem.h | 1 +
2 files changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -459,8 +459,7 @@ const struct vm_operations_struct tegra_
.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, st
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 d
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)
--- a/drivers/gpu/drm/tegra/gem.h
+++ b/drivers/gpu/drm/tegra/gem.h
@@ -70,6 +70,7 @@ int tegra_bo_dumb_create(struct drm_file
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,