linux/include/drm/drm_agpsupport.h
David Herrmann 00fd78e527 drm: provide agp dummies for CONFIG_AGP=n
We currently rely on gcc dead-code elimination so the drm_agp_* helpers
are not called if drm_core_has_AGP() is false. That's ugly as hell so
provide "static inline" dummies for the case that AGP is disabled.

Fixes a build-regression introduced by:

  commit 28ec711cd4
  Author: David Herrmann <dh.herrmann@gmail.com>
  Date:   Sat Jul 27 16:37:00 2013 +0200

      drm/agp: move AGP cleanup paths to drm_agpsupport.c

v2: switch #ifdef -> #if (spotted by Stephen)

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-08-09 07:22:11 +10:00

195 lines
4.7 KiB
C

#ifndef _DRM_AGPSUPPORT_H_
#define _DRM_AGPSUPPORT_H_
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/mutex.h>
#include <linux/types.h>
#include <linux/agp_backend.h>
#include <drm/drmP.h>
#if __OS_HAS_AGP
void drm_free_agp(DRM_AGP_MEM * handle, int pages);
int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
int drm_unbind_agp(DRM_AGP_MEM * handle);
DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
struct page **pages,
unsigned long num_pages,
uint32_t gtt_offset,
uint32_t type);
struct drm_agp_head *drm_agp_init(struct drm_device *dev);
void drm_agp_destroy(struct drm_agp_head *agp);
void drm_agp_clear(struct drm_device *dev);
int drm_agp_acquire(struct drm_device *dev);
int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_release(struct drm_device *dev);
int drm_agp_release_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
int drm_agp_info_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
int drm_agp_free_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
static inline int drm_core_has_AGP(struct drm_device *dev)
{
return drm_core_check_feature(dev, DRIVER_USE_AGP);
}
#else /* __OS_HAS_AGP */
static inline void drm_free_agp(DRM_AGP_MEM * handle, int pages)
{
}
static inline int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start)
{
return -ENODEV;
}
static inline int drm_unbind_agp(DRM_AGP_MEM * handle)
{
return -ENODEV;
}
static inline DRM_AGP_MEM *drm_agp_bind_pages(struct drm_device *dev,
struct page **pages,
unsigned long num_pages,
uint32_t gtt_offset,
uint32_t type)
{
return NULL;
}
static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev)
{
return NULL;
}
static inline void drm_agp_destroy(struct drm_agp_head *agp)
{
}
static inline void drm_agp_clear(struct drm_device *dev)
{
}
static inline int drm_agp_acquire(struct drm_device *dev)
{
return -ENODEV;
}
static inline int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return -ENODEV;
}
static inline int drm_agp_release(struct drm_device *dev)
{
return -ENODEV;
}
static inline int drm_agp_release_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return -ENODEV;
}
static inline int drm_agp_enable(struct drm_device *dev,
struct drm_agp_mode mode)
{
return -ENODEV;
}
static inline int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return -ENODEV;
}
static inline int drm_agp_info(struct drm_device *dev,
struct drm_agp_info *info)
{
return -ENODEV;
}
static inline int drm_agp_info_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return -ENODEV;
}
static inline int drm_agp_alloc(struct drm_device *dev,
struct drm_agp_buffer *request)
{
return -ENODEV;
}
static inline int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return -ENODEV;
}
static inline int drm_agp_free(struct drm_device *dev,
struct drm_agp_buffer *request)
{
return -ENODEV;
}
static inline int drm_agp_free_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return -ENODEV;
}
static inline int drm_agp_unbind(struct drm_device *dev,
struct drm_agp_binding *request)
{
return -ENODEV;
}
static inline int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return -ENODEV;
}
static inline int drm_agp_bind(struct drm_device *dev,
struct drm_agp_binding *request)
{
return -ENODEV;
}
static inline int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
return -ENODEV;
}
static inline int drm_core_has_AGP(struct drm_device *dev)
{
return 0;
}
#endif /* __OS_HAS_AGP */
#endif /* _DRM_AGPSUPPORT_H_ */