From: Samuel Li <Samuel.Li@amd.com>
Date: Thu, 4 Jan 2018 16:12:14 -0500
Subject: drm: export gem dmabuf_ops for drivers to reuse
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Git-commit: c308279f87988a1582a52f25fa7903974f0f4a12
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Samuel Li <Samuel.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1515100334-6845-1-git-send-email-Samuel.Li@amd.com
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/drm_prime.c | 53 +++++++++++++++++++++++++-------------------
include/drm/drm_prime.h | 22 ++++++++++++++++++
2 files changed, 53 insertions(+), 22 deletions(-)
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -180,9 +180,8 @@ static int drm_prime_lookup_buf_handle(s
return -ENOENT;
}
-static int drm_gem_map_attach(struct dma_buf *dma_buf,
- struct device *target_dev,
- struct dma_buf_attachment *attach)
+int drm_gem_map_attach(struct dma_buf *dma_buf, struct device *target_dev,
+ struct dma_buf_attachment *attach)
{
struct drm_prime_attachment *prime_attach;
struct drm_gem_object *obj = dma_buf->priv;
@@ -200,9 +199,10 @@ static int drm_gem_map_attach(struct dma
return dev->driver->gem_prime_pin(obj);
}
+EXPORT_SYMBOL(drm_gem_map_attach);
-static void drm_gem_map_detach(struct dma_buf *dma_buf,
- struct dma_buf_attachment *attach)
+void drm_gem_map_detach(struct dma_buf *dma_buf,
+ struct dma_buf_attachment *attach)
{
struct drm_prime_attachment *prime_attach = attach->priv;
struct drm_gem_object *obj = dma_buf->priv;
@@ -228,6 +228,7 @@ static void drm_gem_map_detach(struct dm
kfree(prime_attach);
attach->priv = NULL;
}
+EXPORT_SYMBOL(drm_gem_map_detach);
void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv,
struct dma_buf *dma_buf)
@@ -254,8 +255,8 @@ void drm_prime_remove_buf_handle_locked(
}
}
-static struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
- enum dma_data_direction dir)
+struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
+ enum dma_data_direction dir)
{
struct drm_prime_attachment *prime_attach = attach->priv;
struct drm_gem_object *obj = attach->dmabuf->priv;
@@ -291,13 +292,15 @@ static struct sg_table *drm_gem_map_dma_
return sgt;
}
+EXPORT_SYMBOL(drm_gem_map_dma_buf);
-static void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
- struct sg_table *sgt,
- enum dma_data_direction dir)
+void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
+ struct sg_table *sgt,
+ enum dma_data_direction dir)
{
/* nothing to be done here */
}
+EXPORT_SYMBOL(drm_gem_unmap_dma_buf);
/**
* drm_gem_dmabuf_export - dma_buf export implementation for GEM
@@ -348,47 +351,52 @@ void drm_gem_dmabuf_release(struct dma_b
}
EXPORT_SYMBOL(drm_gem_dmabuf_release);
-static void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf)
+void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf)
{
struct drm_gem_object *obj = dma_buf->priv;
struct drm_device *dev = obj->dev;
return dev->driver->gem_prime_vmap(obj);
}
+EXPORT_SYMBOL(drm_gem_dmabuf_vmap);
-static void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
+void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
{
struct drm_gem_object *obj = dma_buf->priv;
struct drm_device *dev = obj->dev;
dev->driver->gem_prime_vunmap(obj, vaddr);
}
+EXPORT_SYMBOL(drm_gem_dmabuf_vunmap);
-static void *drm_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
- unsigned long page_num)
+void *drm_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
+ unsigned long page_num)
{
return NULL;
}
+EXPORT_SYMBOL(drm_gem_dmabuf_kmap_atomic);
-static void drm_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
- unsigned long page_num, void *addr)
+void drm_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
+ unsigned long page_num, void *addr)
{
}
-static void *drm_gem_dmabuf_kmap(struct dma_buf *dma_buf,
- unsigned long page_num)
+EXPORT_SYMBOL(drm_gem_dmabuf_kunmap_atomic);
+
+void *drm_gem_dmabuf_kmap(struct dma_buf *dma_buf, unsigned long page_num)
{
return NULL;
}
+EXPORT_SYMBOL(drm_gem_dmabuf_kmap);
-static void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf,
- unsigned long page_num, void *addr)
+void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf, unsigned long page_num,
+ void *addr)
{
}
+EXPORT_SYMBOL(drm_gem_dmabuf_kunmap);
-static int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf,
- struct vm_area_struct *vma)
+int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma)
{
struct drm_gem_object *obj = dma_buf->priv;
struct drm_device *dev = obj->dev;
@@ -398,6 +406,7 @@ static int drm_gem_dmabuf_mmap(struct dm
return dev->driver->gem_prime_mmap(obj, vma);
}
+EXPORT_SYMBOL(drm_gem_dmabuf_mmap);
static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
.attach = drm_gem_map_attach,
--- a/include/drm/drm_prime.h
+++ b/include/drm/drm_prime.h
@@ -54,6 +54,9 @@ struct device;
struct dma_buf_export_info;
struct dma_buf;
+struct dma_buf_attachment;
+
+enum dma_data_direction;
struct drm_device;
struct drm_gem_object;
@@ -79,6 +82,25 @@ int drm_gem_prime_fd_to_handle(struct dr
struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
struct dma_buf_export_info *exp_info);
void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
+int drm_gem_map_attach(struct dma_buf *dma_buf, struct device *target_dev,
+ struct dma_buf_attachment *attach);
+void drm_gem_map_detach(struct dma_buf *dma_buf,
+ struct dma_buf_attachment *attach);
+struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
+ enum dma_data_direction dir);
+void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
+ struct sg_table *sgt,
+ enum dma_data_direction dir);
+void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf);
+void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr);
+void *drm_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
+ unsigned long page_num);
+void drm_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
+ unsigned long page_num, void *addr);
+void *drm_gem_dmabuf_kmap(struct dma_buf *dma_buf, unsigned long page_num);
+void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf, unsigned long page_num,
+ void *addr);
+int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma);
int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
dma_addr_t *addrs, int max_pages);