[RFC v4 16/25] drm: Make ioctls available for in-kernel clients
Noralf Trønnes
noralf at tronnes.org
Thu Apr 12 16:12:28 UTC 2018
Make ioctl wrappers for functions that will be used by the in-kernel API.
The following functions are touched:
- drm_mode_create_dumb_ioctl()
- drm_mode_destroy_dumb_ioctl()
- drm_mode_addfb2()
- drm_mode_rmfb()
- drm_prime_handle_to_fd_ioctl()
drm_mode_addfb2() also gets the ability to override the debug name.
Signed-off-by: Noralf Trønnes <noralf at tronnes.org>
---
drivers/gpu/drm/drm_crtc_internal.h | 18 ++++++++++---
drivers/gpu/drm/drm_dumb_buffers.c | 33 ++++++++++++++++--------
drivers/gpu/drm/drm_framebuffer.c | 50 ++++++++++++++++++++++++-------------
drivers/gpu/drm/drm_internal.h | 3 +++
drivers/gpu/drm/drm_ioc32.c | 2 +-
drivers/gpu/drm/drm_ioctl.c | 4 +--
drivers/gpu/drm/drm_prime.c | 13 +++++++---
7 files changed, 84 insertions(+), 39 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index 3c2b82865ad2..8f8886ac0e4d 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -62,6 +62,12 @@ int drm_mode_getresources(struct drm_device *dev,
/* drm_dumb_buffers.c */
+int drm_mode_create_dumb(struct drm_device *dev,
+ struct drm_mode_create_dumb *args,
+ struct drm_file *file_priv);
+int drm_mode_destroy_dumb(struct drm_device *dev, u32 handle,
+ struct drm_file *file_priv);
+
/* IOCTLs */
int drm_mode_create_dumb_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
@@ -163,14 +169,18 @@ int drm_framebuffer_check_src_coords(uint32_t src_x, uint32_t src_y,
const struct drm_framebuffer *fb);
void drm_fb_release(struct drm_file *file_priv);
+int drm_mode_addfb2(struct drm_device *dev, struct drm_mode_fb_cmd2 *r,
+ struct drm_file *file_priv, const char *comm);
+int drm_mode_rmfb(struct drm_device *dev, u32 fb_id,
+ struct drm_file *file_priv);
/* IOCTL */
int drm_mode_addfb(struct drm_device *dev,
void *data, struct drm_file *file_priv);
-int drm_mode_addfb2(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
-int drm_mode_rmfb(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
+int drm_mode_addfb2_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv);
+int drm_mode_rmfb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv);
int drm_mode_getfb(struct drm_device *dev,
void *data, struct drm_file *file_priv);
int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
diff --git a/drivers/gpu/drm/drm_dumb_buffers.c b/drivers/gpu/drm/drm_dumb_buffers.c
index 39ac15ce4702..eed9687b8698 100644
--- a/drivers/gpu/drm/drm_dumb_buffers.c
+++ b/drivers/gpu/drm/drm_dumb_buffers.c
@@ -53,10 +53,10 @@
* a hardware-specific ioctl to allocate suitable buffer objects.
*/
-int drm_mode_create_dumb_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
+int drm_mode_create_dumb(struct drm_device *dev,
+ struct drm_mode_create_dumb *args,
+ struct drm_file *file_priv)
{
- struct drm_mode_create_dumb *args = data;
u32 cpp, stride, size;
if (!dev->driver->dumb_create)
@@ -91,6 +91,12 @@ int drm_mode_create_dumb_ioctl(struct drm_device *dev,
return dev->driver->dumb_create(file_priv, dev, args);
}
+int drm_mode_create_dumb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ return drm_mode_create_dumb(dev, data, file_priv);
+}
+
/**
* drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer
* @dev: DRM device
@@ -122,17 +128,22 @@ int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
&args->offset);
}
+int drm_mode_destroy_dumb(struct drm_device *dev, u32 handle,
+ struct drm_file *file_priv)
+{
+ if (!dev->driver->dumb_create)
+ return -ENOSYS;
+
+ if (dev->driver->dumb_destroy)
+ return dev->driver->dumb_destroy(file_priv, dev, handle);
+ else
+ return drm_gem_dumb_destroy(file_priv, dev, handle);
+}
+
int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
struct drm_mode_destroy_dumb *args = data;
- if (!dev->driver->dumb_create)
- return -ENOSYS;
-
- if (dev->driver->dumb_destroy)
- return dev->driver->dumb_destroy(file_priv, dev, args->handle);
- else
- return drm_gem_dumb_destroy(file_priv, dev, args->handle);
+ return drm_mode_destroy_dumb(dev, args->handle, file_priv);
}
-
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index 8c4d32adcc17..16769e4db5c0 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -125,7 +125,7 @@ int drm_mode_addfb(struct drm_device *dev,
dev->driver->driver_features & DRIVER_PREFER_XBGR_30BPP)
r.pixel_format = DRM_FORMAT_XBGR2101010;
- ret = drm_mode_addfb2(dev, &r, file_priv);
+ ret = drm_mode_addfb2_ioctl(dev, &r, file_priv);
if (ret)
return ret;
@@ -310,23 +310,23 @@ drm_internal_framebuffer_create(struct drm_device *dev,
/**
* drm_mode_addfb2 - add an FB to the graphics configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
+ * @dev: drm device
+ * @r: pointer to request structure
+ * @file_priv: drm file
+ * @comm: optionally override the allocator name used for debug output
*
* Add a new FB to the specified CRTC, given a user request with format. This is
* the 2nd version of the addfb ioctl, which supports multi-planar framebuffers
* and uses fourcc codes as pixel format specifiers.
*
- * Called by the user via ioctl.
+ * Called by the user via ioctl, or by an in-kernel client.
*
* Returns:
* Zero on success, negative errno on failure.
*/
-int drm_mode_addfb2(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
+int drm_mode_addfb2(struct drm_device *dev, struct drm_mode_fb_cmd2 *r,
+ struct drm_file *file_priv, const char *comm)
{
- struct drm_mode_fb_cmd2 *r = data;
struct drm_framebuffer *fb;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
@@ -336,6 +336,9 @@ int drm_mode_addfb2(struct drm_device *dev,
if (IS_ERR(fb))
return PTR_ERR(fb);
+ if (comm)
+ strscpy(fb->comm, comm, TASK_COMM_LEN);
+
DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
r->fb_id = fb->base.id;
@@ -347,6 +350,12 @@ int drm_mode_addfb2(struct drm_device *dev,
return 0;
}
+int drm_mode_addfb2_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ return drm_mode_addfb2(dev, data, file_priv, NULL);
+}
+
struct drm_mode_rmfb_work {
struct work_struct work;
struct list_head fbs;
@@ -367,29 +376,28 @@ static void drm_mode_rmfb_work_fn(struct work_struct *w)
/**
* drm_mode_rmfb - remove an FB from the configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
+ * @dev: drm device
+ * @fb_id: id of framebuffer to remove
+ * @file_priv: drm file
*
- * Remove the FB specified by the user.
+ * Remove the specified FB.
*
- * Called by the user via ioctl.
+ * Called by the user via ioctl, or by an in-kernel client.
*
* Returns:
* Zero on success, negative errno on failure.
*/
-int drm_mode_rmfb(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
+int drm_mode_rmfb(struct drm_device *dev, u32 fb_id,
+ struct drm_file *file_priv)
{
struct drm_framebuffer *fb = NULL;
struct drm_framebuffer *fbl = NULL;
- uint32_t *id = data;
int found = 0;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
- fb = drm_framebuffer_lookup(dev, file_priv, *id);
+ fb = drm_framebuffer_lookup(dev, file_priv, fb_id);
if (!fb)
return -ENOENT;
@@ -435,6 +443,14 @@ int drm_mode_rmfb(struct drm_device *dev,
return -ENOENT;
}
+int drm_mode_rmfb_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ uint32_t *fb_id = data;
+
+ return drm_mode_rmfb(dev, *fb_id, file_priv);
+}
+
/**
* drm_mode_getfb - get FB info
* @dev: drm device for the ioctl
diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h
index 40179c5fc6b8..3f5d7706bcc9 100644
--- a/drivers/gpu/drm/drm_internal.h
+++ b/drivers/gpu/drm/drm_internal.h
@@ -37,6 +37,9 @@ void drm_pci_agp_destroy(struct drm_device *dev);
int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
/* drm_prime.c */
+int drm_prime_handle_to_fd(struct drm_device *dev,
+ struct drm_prime_handle *args,
+ struct drm_file *file_priv);
int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index f8e96e648acf..576d00b7dad5 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -884,7 +884,7 @@ static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd,
sizeof(req64.modifier)))
return -EFAULT;
- err = drm_ioctl_kernel(file, drm_mode_addfb2, &req64,
+ err = drm_ioctl_kernel(file, drm_mode_addfb2_ioctl, &req64,
DRM_CONTROL_ALLOW|DRM_UNLOCKED);
if (err)
return err;
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index af782911c505..c69fda5d3875 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -635,8 +635,8 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
- DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index caf675e3e692..e6052ab2bec4 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -866,11 +866,10 @@ int drm_gem_prime_fd_to_handle(struct drm_device *dev,
}
EXPORT_SYMBOL(drm_gem_prime_fd_to_handle);
-int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
+int drm_prime_handle_to_fd(struct drm_device *dev,
+ struct drm_prime_handle *args,
+ struct drm_file *file_priv)
{
- struct drm_prime_handle *args = data;
-
if (!drm_core_check_feature(dev, DRIVER_PRIME))
return -EINVAL;
@@ -885,6 +884,12 @@ int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
args->handle, args->flags, &args->fd);
}
+int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return drm_prime_handle_to_fd(dev, data, file_priv);
+}
+
int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
--
2.15.1
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