- Add DRM_GET_PRIV_WITH_RETURN macro. This can be used in shared code to

    get the drm_file_t * based on the filp passed in ioctl handlers.
- Use this macro on BSD for simplification and improve its error reporting.
    Make failure to find the drm_file_t * print as an error, not debug.
    This failure may be part of the problem with KDE.
- Make debug and error print macros include the pid on BSD.

12 files changed, 92 insertions, 60 deletions

diff --git a/bsd-core/drm_auth.c b/bsd-core/drm_auth.c
index 9e34b35c..537718c1 100644
--- a/bsd-core/drm_auth.c
+++ b/bsd-core/drm_auth.c
@@ -120,13 +120,7 @@ int DRM(getmagic)(DRM_IOCTL_ARGS)
 	drm_file_t *priv;
 	DRM_DEVICE;
 
-	DRM_LOCK();
-	priv = (drm_file_t *) DRM(find_file_by_proc)(dev, p);
-	DRM_UNLOCK();
-	if (priv == NULL) {
-		DRM_DEBUG("can't find authenticator\n");
-		return EINVAL;
-	}
+	DRM_GET_PRIV_WITH_RETURN(priv, filp);
 
 				/* Find unique magic */
 	if (priv->magic) {
diff --git a/bsd-core/drm_drv.c b/bsd-core/drm_drv.c
index 7d753836..582a4112 100644
--- a/bsd-core/drm_drv.c
+++ b/bsd-core/drm_drv.c
@@ -824,7 +824,7 @@ int DRM(close)(dev_t kdev, int flags, int fmt, DRM_STRUCTPROC *p)
 	priv = DRM(find_file_by_proc)(dev, p);
 	if (!priv) {
 		DRM_UNLOCK();
-		DRM_DEBUG("can't find authenticator\n");
+		DRM_ERROR("can't find authenticator\n");
 		return EINVAL;
 	}
 
@@ -938,13 +938,7 @@ int DRM(ioctl)(dev_t kdev, u_long cmd, caddr_t data, int flags,
 	int nr = DRM_IOCTL_NR(cmd);
 	drm_file_t *priv;
 
-	DRM_LOCK();
-	priv = (drm_file_t *) DRM(find_file_by_proc)(dev, p);
-	DRM_UNLOCK();
-	if (priv == NULL) {
-		DRM_DEBUG("can't find authenticator\n");
-		return EINVAL;
-	}
+	DRM_GET_PRIV_WITH_RETURN(priv, (DRMFILE)DRM_CURRENTPID);
 
 	atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] );
 	++priv->ioctl_count;
diff --git a/bsd-core/drm_os_freebsd.h b/bsd-core/drm_os_freebsd.h
index 42385137..89231ecd 100644
--- a/bsd-core/drm_os_freebsd.h
+++ b/bsd-core/drm_os_freebsd.h
@@ -173,6 +173,21 @@ typedef void			irqreturn_t;
 
 #define DRM_MTRR_WC	MDF_WRITECOMBINE
 
+#define DRM_GET_PRIV_WITH_RETURN(_priv, _filp)			\
+do {								\
+	if (_filp != (DRMFILE)DRM_CURRENTPID) {			\
+		DRM_ERROR("filp doesn't match curproc\n");	\
+		return EINVAL;					\
+	}							\
+	DRM_LOCK();						\
+	_priv = DRM(find_file_by_proc)(dev, DRM_CURPROC);	\
+	DRM_UNLOCK();						\
+	if (_priv == NULL) {					\
+		DRM_ERROR("can't find authenticator\n");	\
+		return EINVAL;					\
+	}							\
+} while (0)
+
 #define LOCK_TEST_WITH_RETURN(dev, filp)				\
 do {									\
 	if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ||		\
@@ -391,17 +406,21 @@ find_first_zero_bit(volatile void *p, int max)
 
 				/* Macros to make printf easier */
 #define DRM_ERROR(fmt, arg...) \
-	printf("error: " "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ## arg)
+	printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt,		\
+	    DRM_CURRENTPID, __func__ , ## arg)
+
 #define DRM_MEM_ERROR(area, fmt, arg...) \
-	printf("error: " "[" DRM_NAME ":%s:%s] *ERROR* " fmt , \
-		__func__, DRM(mem_stats)[area].name , ##arg)
-#define DRM_INFO(fmt, arg...)  printf("info: " "[" DRM_NAME "] " fmt , ## arg)
+	printf("error: [" DRM_NAME ":pid%d:%s:%s] *ERROR* " fmt,	\
+	    DRM_CURRENTPID , __func__, DRM(mem_stats)[area].name , ##arg)
+
+#define DRM_INFO(fmt, arg...)  printf("info: [" DRM_NAME "] " fmt , ## arg)
 
 #if DRM_DEBUG_CODE
-#define DRM_DEBUG(fmt, arg...)						  \
-	do {								  \
-		if (DRM(flags) & DRM_FLAG_DEBUG)			  \
-			printf("[" DRM_NAME ":%s] " fmt , __func__ , ## arg); \
+#define DRM_DEBUG(fmt, arg...)						\
+	do {								\
+		if (DRM(flags) & DRM_FLAG_DEBUG)			\
+			printf("[" DRM_NAME ":pid%d:%s] " fmt,		\
+			    DRM_CURRENTPID, __func__ , ## arg);		\
 	} while (0)
 #else
 #define DRM_DEBUG(fmt, arg...)		 do { } while (0)
diff --git a/bsd-core/drm_os_netbsd.h b/bsd-core/drm_os_netbsd.h
index b03399d8..4c95c50f 100644
--- a/bsd-core/drm_os_netbsd.h
+++ b/bsd-core/drm_os_netbsd.h
@@ -140,6 +140,19 @@ extern const int DRM(M_DRM) = M_DEVBUF;
 
 #define DRM_AGP_FIND_DEVICE()	agp_find_device(0)
 
+#define DRM_GET_PRIV_WITH_RETURN(_priv, _filp)			\
+do {								\
+	if (_filp != (DRMFILE)DRM_CURRENTPID) {			\
+		DRM_ERROR("filp doesn't match curproc\n");	\
+		return EINVAL;					\
+	}							\
+	_priv = DRM(find_file_by_proc)(dev, DRM_CURPROC);	\
+	if (_priv == NULL) {					\
+		DRM_ERROR("can't find authenticator\n");	\
+		return EINVAL;					\
+	}							\
+} while (0)
+
 #define LOCK_TEST_WITH_RETURN(dev, filp)				\
 do {									\
 	if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ||		\
diff --git a/bsd-core/drm_vm.c b/bsd-core/drm_vm.c
index 9e9f1e14..e4ae8c7e 100644
--- a/bsd-core/drm_vm.c
+++ b/bsd-core/drm_vm.c
@@ -65,13 +65,7 @@ paddr_t DRM(mmap)(dev_t kdev, off_t offset, int prot)
 	drm_map_list_entry_t *listentry = NULL;
 	drm_file_t *priv;
 
-	DRM_LOCK();
-	priv = DRM(find_file_by_proc)(dev, DRM_CURPROC);
-	DRM_UNLOCK();
-	if (!priv) {
-		DRM_DEBUG("can't find authenticator\n");
-		return EINVAL;
-	}
+	DRM_GET_PRIV_WITH_RETURN(priv, (DRMFILE)DRM_CURRENTPID);
 
 	if (!priv->authenticated)
 		return DRM_ERR(EACCES);
diff --git a/bsd/drm_auth.h b/bsd/drm_auth.h
index 9e34b35c..537718c1 100644
--- a/bsd/drm_auth.h
+++ b/bsd/drm_auth.h
@@ -120,13 +120,7 @@ int DRM(getmagic)(DRM_IOCTL_ARGS)
 	drm_file_t *priv;
 	DRM_DEVICE;
 
-	DRM_LOCK();
-	priv = (drm_file_t *) DRM(find_file_by_proc)(dev, p);
-	DRM_UNLOCK();
-	if (priv == NULL) {
-		DRM_DEBUG("can't find authenticator\n");
-		return EINVAL;
-	}
+	DRM_GET_PRIV_WITH_RETURN(priv, filp);
 
 				/* Find unique magic */
 	if (priv->magic) {
diff --git a/bsd/drm_drv.h b/bsd/drm_drv.h
index 7d753836..582a4112 100644
--- a/bsd/drm_drv.h
+++ b/bsd/drm_drv.h
@@ -824,7 +824,7 @@ int DRM(close)(dev_t kdev, int flags, int fmt, DRM_STRUCTPROC *p)
 	priv = DRM(find_file_by_proc)(dev, p);
 	if (!priv) {
 		DRM_UNLOCK();
-		DRM_DEBUG("can't find authenticator\n");
+		DRM_ERROR("can't find authenticator\n");
 		return EINVAL;
 	}
 
@@ -938,13 +938,7 @@ int DRM(ioctl)(dev_t kdev, u_long cmd, caddr_t data, int flags,
 	int nr = DRM_IOCTL_NR(cmd);
 	drm_file_t *priv;
 
-	DRM_LOCK();
-	priv = (drm_file_t *) DRM(find_file_by_proc)(dev, p);
-	DRM_UNLOCK();
-	if (priv == NULL) {
-		DRM_DEBUG("can't find authenticator\n");
-		return EINVAL;
-	}
+	DRM_GET_PRIV_WITH_RETURN(priv, (DRMFILE)DRM_CURRENTPID);
 
 	atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] );
 	++priv->ioctl_count;
diff --git a/bsd/drm_os_freebsd.h b/bsd/drm_os_freebsd.h
index 42385137..89231ecd 100644
--- a/bsd/drm_os_freebsd.h
+++ b/bsd/drm_os_freebsd.h
@@ -173,6 +173,21 @@ typedef void			irqreturn_t;
 
 #define DRM_MTRR_WC	MDF_WRITECOMBINE
 
+#define DRM_GET_PRIV_WITH_RETURN(_priv, _filp)			\
+do {								\
+	if (_filp != (DRMFILE)DRM_CURRENTPID) {			\
+		DRM_ERROR("filp doesn't match curproc\n");	\
+		return EINVAL;					\
+	}							\
+	DRM_LOCK();						\
+	_priv = DRM(find_file_by_proc)(dev, DRM_CURPROC);	\
+	DRM_UNLOCK();						\
+	if (_priv == NULL) {					\
+		DRM_ERROR("can't find authenticator\n");	\
+		return EINVAL;					\
+	}							\
+} while (0)
+
 #define LOCK_TEST_WITH_RETURN(dev, filp)				\
 do {									\
 	if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ||		\
@@ -391,17 +406,21 @@ find_first_zero_bit(volatile void *p, int max)
 
 				/* Macros to make printf easier */
 #define DRM_ERROR(fmt, arg...) \
-	printf("error: " "[" DRM_NAME ":%s] *ERROR* " fmt , __func__ , ## arg)
+	printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt,		\
+	    DRM_CURRENTPID, __func__ , ## arg)
+
 #define DRM_MEM_ERROR(area, fmt, arg...) \
-	printf("error: " "[" DRM_NAME ":%s:%s] *ERROR* " fmt , \
-		__func__, DRM(mem_stats)[area].name , ##arg)
-#define DRM_INFO(fmt, arg...)  printf("info: " "[" DRM_NAME "] " fmt , ## arg)
+	printf("error: [" DRM_NAME ":pid%d:%s:%s] *ERROR* " fmt,	\
+	    DRM_CURRENTPID , __func__, DRM(mem_stats)[area].name , ##arg)
+
+#define DRM_INFO(fmt, arg...)  printf("info: [" DRM_NAME "] " fmt , ## arg)
 
 #if DRM_DEBUG_CODE
-#define DRM_DEBUG(fmt, arg...)						  \
-	do {								  \
-		if (DRM(flags) & DRM_FLAG_DEBUG)			  \
-			printf("[" DRM_NAME ":%s] " fmt , __func__ , ## arg); \
+#define DRM_DEBUG(fmt, arg...)						\
+	do {								\
+		if (DRM(flags) & DRM_FLAG_DEBUG)			\
+			printf("[" DRM_NAME ":pid%d:%s] " fmt,		\
+			    DRM_CURRENTPID, __func__ , ## arg);		\
 	} while (0)
 #else
 #define DRM_DEBUG(fmt, arg...)		 do { } while (0)
diff --git a/bsd/drm_os_netbsd.h b/bsd/drm_os_netbsd.h
index b03399d8..4c95c50f 100644
--- a/bsd/drm_os_netbsd.h
+++ b/bsd/drm_os_netbsd.h
@@ -140,6 +140,19 @@ extern const int DRM(M_DRM) = M_DEVBUF;
 
 #define DRM_AGP_FIND_DEVICE()	agp_find_device(0)
 
+#define DRM_GET_PRIV_WITH_RETURN(_priv, _filp)			\
+do {								\
+	if (_filp != (DRMFILE)DRM_CURRENTPID) {			\
+		DRM_ERROR("filp doesn't match curproc\n");	\
+		return EINVAL;					\
+	}							\
+	_priv = DRM(find_file_by_proc)(dev, DRM_CURPROC);	\
+	if (_priv == NULL) {					\
+		DRM_ERROR("can't find authenticator\n");	\
+		return EINVAL;					\
+	}							\
+} while (0)
+
 #define LOCK_TEST_WITH_RETURN(dev, filp)				\
 do {									\
 	if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ||		\
diff --git a/bsd/drm_vm.h b/bsd/drm_vm.h
index 9e9f1e14..e4ae8c7e 100644
--- a/bsd/drm_vm.h
+++ b/bsd/drm_vm.h
@@ -65,13 +65,7 @@ paddr_t DRM(mmap)(dev_t kdev, off_t offset, int prot)
 	drm_map_list_entry_t *listentry = NULL;
 	drm_file_t *priv;
 
-	DRM_LOCK();
-	priv = DRM(find_file_by_proc)(dev, DRM_CURPROC);
-	DRM_UNLOCK();
-	if (!priv) {
-		DRM_DEBUG("can't find authenticator\n");
-		return EINVAL;
-	}
+	DRM_GET_PRIV_WITH_RETURN(priv, (DRMFILE)DRM_CURRENTPID);
 
 	if (!priv->authenticated)
 		return DRM_ERR(EACCES);
diff --git a/linux-core/drm_os_linux.h b/linux-core/drm_os_linux.h
index 38a5769e..cf7d7c2d 100644
--- a/linux-core/drm_os_linux.h
+++ b/linux-core/drm_os_linux.h
@@ -83,6 +83,8 @@ typedef void irqreturn_t;
 /** '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
+
 /** 
  * Get the pointer to the SAREA.
  *
diff --git a/linux/drm_os_linux.h b/linux/drm_os_linux.h
index 38a5769e..cf7d7c2d 100644
--- a/linux/drm_os_linux.h
+++ b/linux/drm_os_linux.h
@@ -83,6 +83,8 @@ typedef void irqreturn_t;
 /** '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
+
 /** 
  * Get the pointer to the SAREA.
  *