drm: memory allocation patch

This removes some unnecessary macros for allocating DRM memory.
It doesn't change any functionality.

From: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>

drivers/char/drm/drmP.h

@@ -34,6 +34,8 @@
 #ifndef _DRM_P_H_
 #define _DRM_P_H_
 
+/* If you want the memory alloc debug functionality, change define below */
+/* #define DEBUG_MEMORY */
 
 #ifdef __KERNEL__
 #ifdef __alpha__
@@ -765,11 +767,9 @@ extern ssize_t       DRM(read)(struct file *filp, char __user *buf, size_t count
 extern void	     DRM(mem_init)(void);
 extern int	     DRM(mem_info)(char *buf, char **start, off_t offset,
 				   int request, int *eof, void *data);
-extern void	     *DRM(alloc)(size_t size, int area);
 extern void	     *DRM(calloc)(size_t nmemb, size_t size, int area);
 extern void	     *DRM(realloc)(void *oldpt, size_t oldsize, size_t size,
 				   int area);
-extern void	     DRM(free)(void *pt, size_t size, int area);
 extern unsigned long DRM(alloc_pages)(int order, int area);
 extern void	     DRM(free_pages)(unsigned long address, int order,
 				     int area);
@@ -984,6 +984,24 @@ static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev, unsig
 static __inline__ void drm_core_dropmap(struct drm_map *map)
 {
 }
+
+#ifndef DEBUG_MEMORY
+/** Wrapper around kmalloc() */
+static __inline__ void *DRM(alloc)(size_t size, int area)
+{
+	return kmalloc(size, GFP_KERNEL);
+}
+
+/** Wrapper around kfree() */
+static __inline__ void DRM(free)(void *pt, size_t size, int area)
+{
+	kfree(pt);
+}
+#else
+extern void *DRM(alloc)(size_t size, int area);
+extern void DRM(free)(void *pt, size_t size, int area);
+#endif
+
 /*@}*/
 
 extern unsigned long DRM(core_get_map_ofs)(drm_map_t *map);

drivers/char/drm/drm_irq.h

@@ -300,7 +300,7 @@ int DRM(wait_vblank)( DRM_IOCTL_ARGS )
 
 		spin_unlock_irqrestore( &dev->vbl_lock, irqflags );
 
-		if ( !( vbl_sig = DRM_MALLOC( sizeof( drm_vbl_sig_t ) ) ) ) {
+		if ( !( vbl_sig = DRM(alloc)( sizeof( drm_vbl_sig_t ), DRM_MEM_DRIVER ) ) ) {
 			return -ENOMEM;
 		}
 
@@ -356,7 +356,7 @@ void DRM(vbl_send_signals)( drm_device_t *dev )
 
 			list_del( list );
 
-			DRM_FREE( vbl_sig, sizeof(*vbl_sig) );
+			DRM(free)( vbl_sig, sizeof(*vbl_sig), DRM_MEM_DRIVER );
 
 			dev->vbl_pending--;
 		}

drivers/char/drm/drm_memory.h

@@ -39,10 +39,8 @@
 
 /**
  * Cut down version of drm_memory_debug.h, which used to be called
- * drm_memory.h.  If you want the debug functionality, change 0 to 1
- * below.
+ * drm_memory.h.  
  */
-#define DEBUG_MEMORY 0
 
 #if __OS_HAS_AGP
 
@@ -197,7 +195,7 @@ static inline void drm_ioremapfree(void *pt, unsigned long size, drm_device_t *d
 }
 
 
-#if DEBUG_MEMORY
+#ifdef DEBUG_MEMORY
 #include "drm_memory_debug.h"
 #else
 
@@ -226,13 +224,7 @@ int DRM(mem_info)(char *buf, char **start, off_t offset,
 }
 
 /** Wrapper around kmalloc() */
-void *DRM(alloc)(size_t size, int area)
-{
-	return kmalloc(size, GFP_KERNEL);
-}
-
-/** Wrapper around kmalloc() */
-void *DRM(calloc)(size_t size, size_t nmemb, int area)
+void *DRM(calloc)(size_t nmemb, size_t size, int area)
 {
 	void *addr;
 
@@ -256,12 +248,6 @@ void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size, int area)
 	return pt;
 }
 
-/** Wrapper around kfree() */
-void DRM(free)(void *pt, size_t size, int area)
-{
-	kfree(pt);
-}
-
 /**
  * Allocate pages.
  *

drivers/char/drm/drm_memory_debug.h

@@ -167,7 +167,7 @@ void *DRM(alloc)(size_t size, int area)
 	return pt;
 }
 
-void *DRM(calloc)(size_t size, size_t nmemb, int area)
+void *DRM(calloc)(size_t nmemb, size_t size, int area)
 {
 	void *addr;
 

drivers/char/drm/drm_os_linux.h

@@ -100,11 +100,6 @@ static __inline__ int mtrr_del (int reg, unsigned long base,
 	__put_user(val, uaddr)
 
 
-/** 'malloc' without the overhead of DRM(alloc)() */
-#define DRM_MALLOC(x) kmalloc(x, GFP_KERNEL)
-/** 'free' without the overhead of DRM(free)() */
-#define DRM_FREE(x,size) kfree(x)
-
 #define DRM_GET_PRIV_WITH_RETURN(_priv, _filp) _priv = _filp->private_data
 
 /** 

drivers/char/drm/i915_mem.c

@@ -75,7 +75,7 @@ static struct mem_block *split_block(struct mem_block *p, int start, int size,
 {
 	/* Maybe cut off the start of an existing block */
 	if (start > p->start) {
-		struct mem_block *newblock = DRM_MALLOC(sizeof(*newblock));
+		struct mem_block *newblock = DRM(alloc)(sizeof(*newblock), DRM_MEM_BUFLISTS);
 		if (!newblock)
 			goto out;
 		newblock->start = start;
@@ -91,7 +91,7 @@ static struct mem_block *split_block(struct mem_block *p, int start, int size,
 
 	/* Maybe cut off the end of an existing block */
 	if (size < p->size) {
-		struct mem_block *newblock = DRM_MALLOC(sizeof(*newblock));
+		struct mem_block *newblock = DRM(alloc)(sizeof(*newblock), DRM_MEM_BUFLISTS);
 		if (!newblock)
 			goto out;
 		newblock->start = start + size;
@@ -148,7 +148,7 @@ static void free_block(struct mem_block *p)
 		p->size += q->size;
 		p->next = q->next;
 		p->next->prev = p;
-		DRM_FREE(q, sizeof(*q));
+		DRM(free)(q, sizeof(*q), DRM_MEM_BUFLISTS);
 	}
 
 	if (p->prev->filp == NULL) {
@@ -156,7 +156,7 @@ static void free_block(struct mem_block *p)
 		q->size += p->size;
 		q->next = p->next;
 		q->next->prev = q;
-		DRM_FREE(p, sizeof(*q));
+		DRM(free)(p, sizeof(*q), DRM_MEM_BUFLISTS);
 	}
 }
 
@@ -164,14 +164,14 @@ static void free_block(struct mem_block *p)
  */
 static int init_heap(struct mem_block **heap, int start, int size)
 {
-	struct mem_block *blocks = DRM_MALLOC(sizeof(*blocks));
+	struct mem_block *blocks = DRM(alloc)(sizeof(*blocks), DRM_MEM_BUFLISTS);
 
 	if (!blocks)
 		return -ENOMEM;
 
-	*heap = DRM_MALLOC(sizeof(**heap));
+	*heap = DRM(alloc)(sizeof(**heap), DRM_MEM_BUFLISTS);
 	if (!*heap) {
-		DRM_FREE(blocks, sizeof(*blocks));
+		DRM(free)(blocks, sizeof(*blocks), DRM_MEM_BUFLISTS);
 		return -ENOMEM;
 	}
 
@@ -211,7 +211,7 @@ void i915_mem_release(drm_device_t * dev, DRMFILE filp, struct mem_block *heap)
 			p->size += q->size;
 			p->next = q->next;
 			p->next->prev = p;
-			DRM_FREE(q, sizeof(*q));
+			DRM(free)(q, sizeof(*q), DRM_MEM_BUFLISTS);
 		}
 	}
 }
@@ -228,10 +228,10 @@ void i915_mem_takedown(struct mem_block **heap)
 	for (p = (*heap)->next; p != *heap;) {
 		struct mem_block *q = p;
 		p = p->next;
-		DRM_FREE(q, sizeof(*q));
+		DRM(free)(q, sizeof(*q), DRM_MEM_BUFLISTS);
 	}
 
-	DRM_FREE(*heap, sizeof(**heap));
+	DRM(free)(*heap, sizeof(**heap), DRM_MEM_BUFLISTS);
 	*heap = NULL;
 }
 

drivers/char/drm/r128_state.c

@@ -926,24 +926,24 @@ static int r128_cce_dispatch_write_span( drm_device_t *dev,
 	}
 
 	buffer_size = depth->n * sizeof(u32);
-	buffer = DRM_MALLOC( buffer_size );
+	buffer = DRM(alloc)( buffer_size, DRM_MEM_BUFS );
 	if ( buffer == NULL )
 		return DRM_ERR(ENOMEM);
 	if ( DRM_COPY_FROM_USER( buffer, depth->buffer, buffer_size ) ) {
-		DRM_FREE( buffer, buffer_size);
+		DRM(free)( buffer, buffer_size, DRM_MEM_BUFS);
 		return DRM_ERR(EFAULT);
 	}
 
 	mask_size = depth->n * sizeof(u8);
 	if ( depth->mask ) {
-		mask = DRM_MALLOC( mask_size );
+		mask = DRM(alloc)( mask_size, DRM_MEM_BUFS );
 		if ( mask == NULL ) {
-			DRM_FREE( buffer, buffer_size );
+			DRM(free)( buffer, buffer_size, DRM_MEM_BUFS );
 			return DRM_ERR(ENOMEM);
 		}
 		if ( DRM_COPY_FROM_USER( mask, depth->mask, mask_size ) ) {
-			DRM_FREE( buffer, buffer_size );
-			DRM_FREE( mask, mask_size );
+			DRM(free)( buffer, buffer_size, DRM_MEM_BUFS );
+			DRM(free)( mask, mask_size, DRM_MEM_BUFS );
 			return DRM_ERR(EFAULT);
 		}
 
@@ -970,7 +970,7 @@ static int r128_cce_dispatch_write_span( drm_device_t *dev,
 			}
 		}
 
-		DRM_FREE( mask, mask_size );
+		DRM(free)( mask, mask_size, DRM_MEM_BUFS );
 	} else {
 		for ( i = 0 ; i < count ; i++, x++ ) {
 			BEGIN_RING( 6 );
@@ -994,7 +994,7 @@ static int r128_cce_dispatch_write_span( drm_device_t *dev,
 		}
 	}
 
-	DRM_FREE( buffer, buffer_size );
+	DRM(free)( buffer, buffer_size, DRM_MEM_BUFS );
 
 	return 0;
 }
@@ -1016,54 +1016,54 @@ static int r128_cce_dispatch_write_pixels( drm_device_t *dev,
 
 	xbuf_size = count * sizeof(*x);
 	ybuf_size = count * sizeof(*y);
-	x = DRM_MALLOC( xbuf_size );
+	x = DRM(alloc)( xbuf_size, DRM_MEM_BUFS );
 	if ( x == NULL ) {
 		return DRM_ERR(ENOMEM);
 	}
-	y = DRM_MALLOC( ybuf_size );
+	y = DRM(alloc)( ybuf_size, DRM_MEM_BUFS );
 	if ( y == NULL ) {
-		DRM_FREE( x, xbuf_size );
+		DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
 		return DRM_ERR(ENOMEM);
 	}
 	if ( DRM_COPY_FROM_USER( x, depth->x, xbuf_size ) ) {
-		DRM_FREE( x, xbuf_size );
-		DRM_FREE( y, ybuf_size );
+		DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
+		DRM(free)( y, ybuf_size, DRM_MEM_BUFS );
 		return DRM_ERR(EFAULT);
 	}
 	if ( DRM_COPY_FROM_USER( y, depth->y, xbuf_size ) ) {
-		DRM_FREE( x, xbuf_size );
-		DRM_FREE( y, ybuf_size );
+		DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
+		DRM(free)( y, ybuf_size, DRM_MEM_BUFS );
 		return DRM_ERR(EFAULT);
 	}
 
 	buffer_size = depth->n * sizeof(u32);
-	buffer = DRM_MALLOC( buffer_size );
+	buffer = DRM(alloc)( buffer_size, DRM_MEM_BUFS );
 	if ( buffer == NULL ) {
-		DRM_FREE( x, xbuf_size );
-		DRM_FREE( y, ybuf_size );
+		DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
+		DRM(free)( y, ybuf_size, DRM_MEM_BUFS );
 		return DRM_ERR(ENOMEM);
 	}
 	if ( DRM_COPY_FROM_USER( buffer, depth->buffer, buffer_size ) ) {
-		DRM_FREE( x, xbuf_size );
-		DRM_FREE( y, ybuf_size );
-		DRM_FREE( buffer, buffer_size );
+		DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
+		DRM(free)( y, ybuf_size, DRM_MEM_BUFS );
+		DRM(free)( buffer, buffer_size, DRM_MEM_BUFS );
 		return DRM_ERR(EFAULT);
 	}
 
 	if ( depth->mask ) {
 		mask_size = depth->n * sizeof(u8);
-		mask = DRM_MALLOC( mask_size );
+		mask = DRM(alloc)( mask_size, DRM_MEM_BUFS );
 		if ( mask == NULL ) {
-			DRM_FREE( x, xbuf_size );
-			DRM_FREE( y, ybuf_size );
-			DRM_FREE( buffer, buffer_size );
+			DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
+			DRM(free)( y, ybuf_size, DRM_MEM_BUFS );
+			DRM(free)( buffer, buffer_size, DRM_MEM_BUFS );
 			return DRM_ERR(ENOMEM);
 		}
 		if ( DRM_COPY_FROM_USER( mask, depth->mask, mask_size ) ) {
-			DRM_FREE( x, xbuf_size );
-			DRM_FREE( y, ybuf_size );
-			DRM_FREE( buffer, buffer_size );
-			DRM_FREE( mask, mask_size );
+			DRM(free)( x, xbuf_size, DRM_MEM_BUFS  );
+			DRM(free)( y, ybuf_size, DRM_MEM_BUFS  );
+			DRM(free)( buffer, buffer_size, DRM_MEM_BUFS  );
+			DRM(free)( mask, mask_size, DRM_MEM_BUFS  );
 			return DRM_ERR(EFAULT);
 		}
 
@@ -1090,7 +1090,7 @@ static int r128_cce_dispatch_write_pixels( drm_device_t *dev,
 			}
 		}
 
-		DRM_FREE( mask, mask_size );
+		DRM(free)( mask, mask_size, DRM_MEM_BUFS );
 	} else {
 		for ( i = 0 ; i < count ; i++ ) {
 			BEGIN_RING( 6 );
@@ -1114,9 +1114,9 @@ static int r128_cce_dispatch_write_pixels( drm_device_t *dev,
 		}
 	}
 
-	DRM_FREE( x, xbuf_size );
-	DRM_FREE( y, ybuf_size );
-	DRM_FREE( buffer, buffer_size );
+	DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
+	DRM(free)( y, ybuf_size, DRM_MEM_BUFS );
+	DRM(free)( buffer, buffer_size, DRM_MEM_BUFS );
 
 	return 0;
 }
@@ -1184,23 +1184,23 @@ static int r128_cce_dispatch_read_pixels( drm_device_t *dev,
 
 	xbuf_size = count * sizeof(*x);
 	ybuf_size = count * sizeof(*y);
-	x = DRM_MALLOC( xbuf_size );
+	x = DRM(alloc)( xbuf_size, DRM_MEM_BUFS );
 	if ( x == NULL ) {
 		return DRM_ERR(ENOMEM);
 	}
-	y = DRM_MALLOC( ybuf_size );
+	y = DRM(alloc)( ybuf_size, DRM_MEM_BUFS );
 	if ( y == NULL ) {
-		DRM_FREE( x, xbuf_size );
+		DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
 		return DRM_ERR(ENOMEM);
 	}
 	if ( DRM_COPY_FROM_USER( x, depth->x, xbuf_size ) ) {
-		DRM_FREE( x, xbuf_size );
-		DRM_FREE( y, ybuf_size );
+		DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
+		DRM(free)( y, ybuf_size, DRM_MEM_BUFS );
 		return DRM_ERR(EFAULT);
 	}
 	if ( DRM_COPY_FROM_USER( y, depth->y, ybuf_size ) ) {
-		DRM_FREE( x, xbuf_size );
-		DRM_FREE( y, ybuf_size );
+		DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
+		DRM(free)( y, ybuf_size, DRM_MEM_BUFS );
 		return DRM_ERR(EFAULT);
 	}
 
@@ -1228,8 +1228,8 @@ static int r128_cce_dispatch_read_pixels( drm_device_t *dev,
 		ADVANCE_RING();
 	}
 
-	DRM_FREE( x, xbuf_size );
-	DRM_FREE( y, ybuf_size );
+	DRM(free)( x, xbuf_size, DRM_MEM_BUFS );
+	DRM(free)( y, ybuf_size, DRM_MEM_BUFS );
 
 	return 0;
 }

drivers/char/drm/radeon_mem.c

@@ -44,7 +44,7 @@ static struct mem_block *split_block(struct mem_block *p, int start, int size,
 {
 	/* Maybe cut off the start of an existing block */
 	if (start > p->start) {
-		struct mem_block *newblock = DRM_MALLOC(sizeof(*newblock));
+		struct mem_block *newblock = DRM(alloc)(sizeof(*newblock), DRM_MEM_BUFS );
 		if (!newblock) 
 			goto out;
 		newblock->start = start;
@@ -60,7 +60,7 @@ static struct mem_block *split_block(struct mem_block *p, int start, int size,
    
 	/* Maybe cut off the end of an existing block */
 	if (size < p->size) {
-		struct mem_block *newblock = DRM_MALLOC(sizeof(*newblock));
+		struct mem_block *newblock = DRM(alloc)(sizeof(*newblock), DRM_MEM_BUFS );
 		if (!newblock)
 			goto out;
 		newblock->start = start + size;
@@ -118,7 +118,7 @@ static void free_block( struct mem_block *p )
 		p->size += q->size;
 		p->next = q->next;
 		p->next->prev = p;
-		DRM_FREE(q, sizeof(*q));
+		DRM(free)(q, sizeof(*q), DRM_MEM_BUFS );
 	}
 
 	if (p->prev->filp == 0) {
@@ -126,7 +126,7 @@ static void free_block( struct mem_block *p )
 		q->size += p->size;
 		q->next = p->next;
 		q->next->prev = q;
-		DRM_FREE(p, sizeof(*q));
+		DRM(free)(p, sizeof(*q), DRM_MEM_BUFS );
 	}
 }
 
@@ -134,14 +134,14 @@ static void free_block( struct mem_block *p )
  */
 static int init_heap(struct mem_block **heap, int start, int size)
 {
-	struct mem_block *blocks = DRM_MALLOC(sizeof(*blocks));
+	struct mem_block *blocks = DRM(alloc)(sizeof(*blocks), DRM_MEM_BUFS );
 
 	if (!blocks) 
 		return DRM_ERR(ENOMEM);
 	
-	*heap = DRM_MALLOC(sizeof(**heap));
+	*heap = DRM(alloc)(sizeof(**heap), DRM_MEM_BUFS );
 	if (!*heap) {
-		DRM_FREE( blocks, sizeof(*blocks) );
+		DRM(free)( blocks, sizeof(*blocks), DRM_MEM_BUFS );
 		return DRM_ERR(ENOMEM);
 	}
 
@@ -180,7 +180,7 @@ void radeon_mem_release( DRMFILE filp, struct mem_block *heap )
 			p->size += q->size;
 			p->next = q->next;
 			p->next->prev = p;
-			DRM_FREE(q, sizeof(*q));
+			DRM(free)(q, sizeof(*q),DRM_MEM_DRIVER);
 		}
 	}
 }
@@ -197,10 +197,10 @@ void radeon_mem_takedown( struct mem_block **heap )
 	for (p = (*heap)->next ; p != *heap ; ) {
 		struct mem_block *q = p;
 		p = p->next;
-		DRM_FREE(q, sizeof(*q));
+		DRM(free)(q, sizeof(*q),DRM_MEM_DRIVER);
 	}
 
-	DRM_FREE( *heap, sizeof(**heap) );
+	DRM(free)( *heap, sizeof(**heap),DRM_MEM_DRIVER );
 	*heap = NULL;
 }
 

drivers/char/drm/radeon_state.c

@@ -1440,7 +1440,8 @@ static int radeon_cp_dispatch_texture( DRMFILE filp,
 		}
 		if ( !buf ) {
 			DRM_DEBUG("radeon_cp_dispatch_texture: EAGAIN\n");
-			DRM_COPY_TO_USER( tex->image, image, sizeof(*image) );
+			if (DRM_COPY_TO_USER( tex->image, image, sizeof(*image) ))
+				return DRM_ERR(EFAULT);
 			return DRM_ERR(EAGAIN);
 		}