Re: [PATCH 1/6] drm: Inline AGP wrappers into their only callers

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Hi

Am 12.01.21 um 09:59 schrieb Daniel Vetter:
On Tue, Jan 12, 2021 at 09:10:30AM +0100, Thomas Zimmermann wrote:
The AGP wrapper functions serve no purpose.

Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>

They do, without them we fail compiling (I think at least) when agp isn't

I thought so. But the only callers are in drm_agpsupport.c, which depends on CONFIG_AGP in the Makefile. So I expected this to work.

Best regards
Thomas

enabled. Did you check for that? I should all work if we have the dummy
inlines for relevant agp functions in linux/agp_backend.h.
-Daniel

---
  drivers/gpu/drm/drm_agpsupport.c | 12 ++++++------
  drivers/gpu/drm/drm_memory.c     | 18 ------------------
  include/drm/drm_agpsupport.h     | 18 ------------------
  3 files changed, 6 insertions(+), 42 deletions(-)

diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c
index 4c7ad46fdd21..8b690ef306de 100644
--- a/drivers/gpu/drm/drm_agpsupport.c
+++ b/drivers/gpu/drm/drm_agpsupport.c
@@ -285,7 +285,7 @@ int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request)
  	entry = drm_agp_lookup_entry(dev, request->handle);
  	if (!entry || !entry->bound)
  		return -EINVAL;
-	ret = drm_unbind_agp(entry->memory);
+	ret = agp_unbind_memory(entry->memory);
  	if (ret == 0)
  		entry->bound = 0;
  	return ret;
@@ -326,7 +326,7 @@ int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
  	if (!entry || entry->bound)
  		return -EINVAL;
  	page = DIV_ROUND_UP(request->offset, PAGE_SIZE);
-	retcode = drm_bind_agp(entry->memory, page);
+	retcode = agp_bind_memory(entry->memory, page);
  	if (retcode)
  		return retcode;
  	entry->bound = dev->agp->base + (page << PAGE_SHIFT);
@@ -369,11 +369,11 @@ int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
  	if (!entry)
  		return -EINVAL;
  	if (entry->bound)
-		drm_unbind_agp(entry->memory);
+		agp_unbind_memory(entry->memory);
list_del(&entry->head); - drm_free_agp(entry->memory, entry->pages);
+	agp_free_memory(entry->memory);
  	kfree(entry);
  	return 0;
  }
@@ -453,8 +453,8 @@ void drm_legacy_agp_clear(struct drm_device *dev)
list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
  		if (entry->bound)
-			drm_unbind_agp(entry->memory);
-		drm_free_agp(entry->memory, entry->pages);
+			agp_unbind_memory(entry->memory);
+		agp_free_memory(entry->memory);
  		kfree(entry);
  	}
  	INIT_LIST_HEAD(&dev->agp->memory);
diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c
index fbea69d6f909..f4f2bffdd5bd 100644
--- a/drivers/gpu/drm/drm_memory.c
+++ b/drivers/gpu/drm/drm_memory.c
@@ -100,24 +100,6 @@ static void *agp_remap(unsigned long offset, unsigned long size,
  	return addr;
  }
-/** Wrapper around agp_free_memory() */
-void drm_free_agp(struct agp_memory *handle, int pages)
-{
-	agp_free_memory(handle);
-}
-
-/** Wrapper around agp_bind_memory() */
-int drm_bind_agp(struct agp_memory *handle, unsigned int start)
-{
-	return agp_bind_memory(handle, start);
-}
-
-/** Wrapper around agp_unbind_memory() */
-int drm_unbind_agp(struct agp_memory *handle)
-{
-	return agp_unbind_memory(handle);
-}
-
  #else /*  CONFIG_AGP  */
  static inline void *agp_remap(unsigned long offset, unsigned long size,
  			      struct drm_device *dev)
diff --git a/include/drm/drm_agpsupport.h b/include/drm/drm_agpsupport.h
index 664e120b93e6..f3136750c490 100644
--- a/include/drm/drm_agpsupport.h
+++ b/include/drm/drm_agpsupport.h
@@ -28,10 +28,6 @@ struct drm_agp_head {
#if IS_ENABLED(CONFIG_AGP) -void drm_free_agp(struct agp_memory * handle, int pages);
-int drm_bind_agp(struct agp_memory * handle, unsigned int start);
-int drm_unbind_agp(struct agp_memory * handle);
-
  struct drm_agp_head *drm_agp_init(struct drm_device *dev);
  void drm_legacy_agp_clear(struct drm_device *dev);
  int drm_agp_acquire(struct drm_device *dev);
@@ -61,20 +57,6 @@ int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
#else /* CONFIG_AGP */ -static inline void drm_free_agp(struct agp_memory * handle, int pages)
-{
-}
-
-static inline int drm_bind_agp(struct agp_memory * handle, unsigned int start)
-{
-	return -ENODEV;
-}
-
-static inline int drm_unbind_agp(struct agp_memory * handle)
-{
-	return -ENODEV;
-}
-
  static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev)
  {
  	return NULL;
--
2.29.2



--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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