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authorChristian König <christian.koenig@amd.com>2019-08-11 10:06:32 +0200
committerChristian König <christian.koenig@amd.com>2019-08-13 09:09:30 +0200
commit52791eeec1d9f4a7e7fe08aaba0b1553149d93bc (patch)
treeea1ff9cb7040e20e2cedad4ca8f7d2994ce3d0a8 /include
parent5d344f58da760b226562e7d5199fb73294eb93fa (diff)
dma-buf: rename reservation_object to dma_resv
Be more consistent with the naming of the other DMA-buf objects. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/323401/
Diffstat (limited to 'include')
-rw-r--r--include/drm/drmP.h2
-rw-r--r--include/drm/drm_gem.h8
-rw-r--r--include/drm/ttm/ttm_bo_api.h12
-rw-r--r--include/drm/ttm/ttm_bo_driver.h14
-rw-r--r--include/linux/dma-buf.h4
-rw-r--r--include/linux/dma-fence.h4
-rw-r--r--include/linux/dma-resv.h (renamed from include/linux/reservation.h)134
7 files changed, 79 insertions, 99 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 94aae87b1138..037b1f7a87a5 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -87,7 +87,7 @@ struct module;
struct device_node;
struct videomode;
-struct reservation_object;
+struct dma_resv;
struct dma_buf_attachment;
struct pci_dev;
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index ae693c0666cd..6aaba14f5972 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -35,7 +35,7 @@
*/
#include <linux/kref.h>
-#include <linux/reservation.h>
+#include <linux/dma-resv.h>
#include <drm/drm_vma_manager.h>
@@ -276,7 +276,7 @@ struct drm_gem_object {
*
* Normally (@resv == &@_resv) except for imported GEM objects.
*/
- struct reservation_object *resv;
+ struct dma_resv *resv;
/**
* @_resv:
@@ -285,7 +285,7 @@ struct drm_gem_object {
*
* This is unused for imported GEM objects.
*/
- struct reservation_object _resv;
+ struct dma_resv _resv;
/**
* @funcs:
@@ -390,7 +390,7 @@ void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
int drm_gem_objects_lookup(struct drm_file *filp, void __user *bo_handles,
int count, struct drm_gem_object ***objs_out);
struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle);
-long drm_gem_reservation_object_wait(struct drm_file *filep, u32 handle,
+long drm_gem_dma_resv_wait(struct drm_file *filep, u32 handle,
bool wait_all, unsigned long timeout);
int drm_gem_lock_reservations(struct drm_gem_object **objs, int count,
struct ww_acquire_ctx *acquire_ctx);
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 65ef5376de59..43c4929a2171 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -40,7 +40,7 @@
#include <linux/mutex.h>
#include <linux/mm.h>
#include <linux/bitmap.h>
-#include <linux/reservation.h>
+#include <linux/dma-resv.h>
struct ttm_bo_global;
@@ -273,7 +273,7 @@ struct ttm_bo_kmap_obj {
struct ttm_operation_ctx {
bool interruptible;
bool no_wait_gpu;
- struct reservation_object *resv;
+ struct dma_resv *resv;
uint64_t bytes_moved;
uint32_t flags;
};
@@ -493,7 +493,7 @@ size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
* @page_alignment: Data alignment in pages.
* @ctx: TTM operation context for memory allocation.
* @acc_size: Accounted size for this object.
- * @resv: Pointer to a reservation_object, or NULL to let ttm allocate one.
+ * @resv: Pointer to a dma_resv, or NULL to let ttm allocate one.
* @destroy: Destroy function. Use NULL for kfree().
*
* This function initializes a pre-allocated struct ttm_buffer_object.
@@ -526,7 +526,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
struct ttm_operation_ctx *ctx,
size_t acc_size,
struct sg_table *sg,
- struct reservation_object *resv,
+ struct dma_resv *resv,
void (*destroy) (struct ttm_buffer_object *));
/**
@@ -545,7 +545,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
* point to the shmem object backing a GEM object if TTM is used to back a
* GEM user interface.
* @acc_size: Accounted size for this object.
- * @resv: Pointer to a reservation_object, or NULL to let ttm allocate one.
+ * @resv: Pointer to a dma_resv, or NULL to let ttm allocate one.
* @destroy: Destroy function. Use NULL for kfree().
*
* This function initializes a pre-allocated struct ttm_buffer_object.
@@ -570,7 +570,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev, struct ttm_buffer_object *bo,
unsigned long size, enum ttm_bo_type type,
struct ttm_placement *placement,
uint32_t page_alignment, bool interrubtible, size_t acc_size,
- struct sg_table *sg, struct reservation_object *resv,
+ struct sg_table *sg, struct dma_resv *resv,
void (*destroy) (struct ttm_buffer_object *));
/**
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 3f1935c19a66..e88e00c6cbf2 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -35,7 +35,7 @@
#include <linux/workqueue.h>
#include <linux/fs.h>
#include <linux/spinlock.h>
-#include <linux/reservation.h>
+#include <linux/dma-resv.h>
#include "ttm_bo_api.h"
#include "ttm_memory.h"
@@ -654,14 +654,14 @@ static inline int __ttm_bo_reserve(struct ttm_buffer_object *bo,
if (WARN_ON(ticket))
return -EBUSY;
- success = reservation_object_trylock(bo->base.resv);
+ success = dma_resv_trylock(bo->base.resv);
return success ? 0 : -EBUSY;
}
if (interruptible)
- ret = reservation_object_lock_interruptible(bo->base.resv, ticket);
+ ret = dma_resv_lock_interruptible(bo->base.resv, ticket);
else
- ret = reservation_object_lock(bo->base.resv, ticket);
+ ret = dma_resv_lock(bo->base.resv, ticket);
if (ret == -EINTR)
return -ERESTARTSYS;
return ret;
@@ -745,10 +745,10 @@ static inline int ttm_bo_reserve_slowpath(struct ttm_buffer_object *bo,
WARN_ON(!kref_read(&bo->kref));
if (interruptible)
- ret = reservation_object_lock_slow_interruptible(bo->base.resv,
+ ret = dma_resv_lock_slow_interruptible(bo->base.resv,
ticket);
else
- reservation_object_lock_slow(bo->base.resv, ticket);
+ dma_resv_lock_slow(bo->base.resv, ticket);
if (likely(ret == 0))
ttm_bo_del_sub_from_lru(bo);
@@ -773,7 +773,7 @@ static inline void ttm_bo_unreserve(struct ttm_buffer_object *bo)
else
ttm_bo_move_to_lru_tail(bo, NULL);
spin_unlock(&bo->bdev->glob->lru_lock);
- reservation_object_unlock(bo->base.resv);
+ dma_resv_unlock(bo->base.resv);
}
/*
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
index bae060fae862..ec212cb27fdc 100644
--- a/include/linux/dma-buf.h
+++ b/include/linux/dma-buf.h
@@ -306,7 +306,7 @@ struct dma_buf {
struct module *owner;
struct list_head list_node;
void *priv;
- struct reservation_object *resv;
+ struct dma_resv *resv;
/* poll support */
wait_queue_head_t poll;
@@ -365,7 +365,7 @@ struct dma_buf_export_info {
const struct dma_buf_ops *ops;
size_t size;
int flags;
- struct reservation_object *resv;
+ struct dma_resv *resv;
void *priv;
};
diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h
index bea1d05cf51e..404aa748eda6 100644
--- a/include/linux/dma-fence.h
+++ b/include/linux/dma-fence.h
@@ -279,7 +279,7 @@ static inline struct dma_fence *dma_fence_get(struct dma_fence *fence)
}
/**
- * dma_fence_get_rcu - get a fence from a reservation_object_list with
+ * dma_fence_get_rcu - get a fence from a dma_resv_list with
* rcu read lock
* @fence: fence to increase refcount of
*
@@ -303,7 +303,7 @@ static inline struct dma_fence *dma_fence_get_rcu(struct dma_fence *fence)
* so long as the caller is using RCU on the pointer to the fence.
*
* An alternative mechanism is to employ a seqlock to protect a bunch of
- * fences, such as used by struct reservation_object. When using a seqlock,
+ * fences, such as used by struct dma_resv. When using a seqlock,
* the seqlock must be taken before and checked after a reference to the
* fence is acquired (as shown here).
*
diff --git a/include/linux/reservation.h b/include/linux/dma-resv.h
index acddefea694f..38f2802afabb 100644
--- a/include/linux/reservation.h
+++ b/include/linux/dma-resv.h
@@ -48,38 +48,37 @@
extern struct ww_class reservation_ww_class;
/**
- * struct reservation_object_list - a list of shared fences
+ * struct dma_resv_list - a list of shared fences
* @rcu: for internal use
* @shared_count: table of shared fences
* @shared_max: for growing shared fence table
* @shared: shared fence table
*/
-struct reservation_object_list {
+struct dma_resv_list {
struct rcu_head rcu;
u32 shared_count, shared_max;
struct dma_fence __rcu *shared[];
};
/**
- * struct reservation_object - a reservation object manages fences for a buffer
+ * struct dma_resv - a reservation object manages fences for a buffer
* @lock: update side lock
* @seq: sequence count for managing RCU read-side synchronization
* @fence_excl: the exclusive fence, if there is one currently
* @fence: list of current shared fences
*/
-struct reservation_object {
+struct dma_resv {
struct ww_mutex lock;
struct dma_fence __rcu *fence_excl;
- struct reservation_object_list __rcu *fence;
+ struct dma_resv_list __rcu *fence;
};
-#define reservation_object_held(obj) lockdep_is_held(&(obj)->lock.base)
-#define reservation_object_assert_held(obj) \
- lockdep_assert_held(&(obj)->lock.base)
+#define dma_resv_held(obj) lockdep_is_held(&(obj)->lock.base)
+#define dma_resv_assert_held(obj) lockdep_assert_held(&(obj)->lock.base)
/**
- * reservation_object_get_excl - get the reservation object's
+ * dma_resv_get_excl - get the reservation object's
* exclusive fence, with update-side lock held
* @obj: the reservation object
*
@@ -90,30 +89,28 @@ struct reservation_object {
* RETURNS
* The exclusive fence or NULL
*/
-static inline struct dma_fence *
-reservation_object_get_excl(struct reservation_object *obj)
+static inline struct dma_fence *dma_resv_get_excl(struct dma_resv *obj)
{
return rcu_dereference_protected(obj->fence_excl,
- reservation_object_held(obj));
+ dma_resv_held(obj));
}
/**
- * reservation_object_get_list - get the reservation object's
+ * dma_resv_get_list - get the reservation object's
* shared fence list, with update-side lock held
* @obj: the reservation object
*
* Returns the shared fence list. Does NOT take references to
* the fence. The obj->lock must be held.
*/
-static inline struct reservation_object_list *
-reservation_object_get_list(struct reservation_object *obj)
+static inline struct dma_resv_list *dma_resv_get_list(struct dma_resv *obj)
{
return rcu_dereference_protected(obj->fence,
- reservation_object_held(obj));
+ dma_resv_held(obj));
}
/**
- * reservation_object_fences - read consistent fence pointers
+ * dma_resv_fences - read consistent fence pointers
* @obj: reservation object where we get the fences from
* @excl: pointer for the exclusive fence
* @list: pointer for the shared fence list
@@ -121,22 +118,21 @@ reservation_object_get_list(struct reservation_object *obj)
* Make sure we have a consisten exclusive fence and shared fence list.
* Must be called with rcu read side lock held.
*/
-static inline void
-reservation_object_fences(struct reservation_object *obj,
- struct dma_fence **excl,
- struct reservation_object_list **list,
- u32 *shared_count)
+static inline void dma_resv_fences(struct dma_resv *obj,
+ struct dma_fence **excl,
+ struct dma_resv_list **list,
+ u32 *shared_count)
{
do {
*excl = rcu_dereference(obj->fence_excl);
*list = rcu_dereference(obj->fence);
*shared_count = *list ? (*list)->shared_count : 0;
- smp_rmb(); /* See reservation_object_add_excl_fence */
+ smp_rmb(); /* See dma_resv_add_excl_fence */
} while (rcu_access_pointer(obj->fence_excl) != *excl);
}
/**
- * reservation_object_get_excl_rcu - get the reservation object's
+ * dma_resv_get_excl_rcu - get the reservation object's
* exclusive fence, without lock held.
* @obj: the reservation object
*
@@ -146,8 +142,7 @@ reservation_object_fences(struct reservation_object *obj,
* RETURNS
* The exclusive fence or NULL if none
*/
-static inline struct dma_fence *
-reservation_object_get_excl_rcu(struct reservation_object *obj)
+static inline struct dma_fence *dma_resv_get_excl_rcu(struct dma_resv *obj)
{
struct dma_fence *fence;
@@ -162,7 +157,7 @@ reservation_object_get_excl_rcu(struct reservation_object *obj)
}
/**
- * reservation_object_lock - lock the reservation object
+ * dma_resv_lock - lock the reservation object
* @obj: the reservation object
* @ctx: the locking context
*
@@ -176,15 +171,14 @@ reservation_object_get_excl_rcu(struct reservation_object *obj)
* is detected. See ww_mutex_lock() and ww_acquire_init(). A reservation
* object may be locked by itself by passing NULL as @ctx.
*/
-static inline int
-reservation_object_lock(struct reservation_object *obj,
- struct ww_acquire_ctx *ctx)
+static inline int dma_resv_lock(struct dma_resv *obj,
+ struct ww_acquire_ctx *ctx)
{
return ww_mutex_lock(&obj->lock, ctx);
}
/**
- * reservation_object_lock_interruptible - lock the reservation object
+ * dma_resv_lock_interruptible - lock the reservation object
* @obj: the reservation object
* @ctx: the locking context
*
@@ -198,48 +192,45 @@ reservation_object_lock(struct reservation_object *obj,
* is detected. See ww_mutex_lock() and ww_acquire_init(). A reservation
* object may be locked by itself by passing NULL as @ctx.
*/
-static inline int
-reservation_object_lock_interruptible(struct reservation_object *obj,
- struct ww_acquire_ctx *ctx)
+static inline int dma_resv_lock_interruptible(struct dma_resv *obj,
+ struct ww_acquire_ctx *ctx)
{
return ww_mutex_lock_interruptible(&obj->lock, ctx);
}
/**
- * reservation_object_lock_slow - slowpath lock the reservation object
+ * dma_resv_lock_slow - slowpath lock the reservation object
* @obj: the reservation object
* @ctx: the locking context
*
* Acquires the reservation object after a die case. This function
- * will sleep until the lock becomes available. See reservation_object_lock() as
+ * will sleep until the lock becomes available. See dma_resv_lock() as
* well.
*/
-static inline void
-reservation_object_lock_slow(struct reservation_object *obj,
- struct ww_acquire_ctx *ctx)
+static inline void dma_resv_lock_slow(struct dma_resv *obj,
+ struct ww_acquire_ctx *ctx)
{
ww_mutex_lock_slow(&obj->lock, ctx);
}
/**
- * reservation_object_lock_slow_interruptible - slowpath lock the reservation
+ * dma_resv_lock_slow_interruptible - slowpath lock the reservation
* object, interruptible
* @obj: the reservation object
* @ctx: the locking context
*
* Acquires the reservation object interruptible after a die case. This function
* will sleep until the lock becomes available. See
- * reservation_object_lock_interruptible() as well.
+ * dma_resv_lock_interruptible() as well.
*/
-static inline int
-reservation_object_lock_slow_interruptible(struct reservation_object *obj,
- struct ww_acquire_ctx *ctx)
+static inline int dma_resv_lock_slow_interruptible(struct dma_resv *obj,
+ struct ww_acquire_ctx *ctx)
{
return ww_mutex_lock_slow_interruptible(&obj->lock, ctx);
}
/**
- * reservation_object_trylock - trylock the reservation object
+ * dma_resv_trylock - trylock the reservation object
* @obj: the reservation object
*
* Tries to lock the reservation object for exclusive access and modification.
@@ -252,51 +243,46 @@ reservation_object_lock_slow_interruptible(struct reservation_object *obj,
*
* Returns true if the lock was acquired, false otherwise.
*/
-static inline bool __must_check
-reservation_object_trylock(struct reservation_object *obj)
+static inline bool __must_check dma_resv_trylock(struct dma_resv *obj)
{
return ww_mutex_trylock(&obj->lock);
}
/**
- * reservation_object_is_locked - is the reservation object locked
+ * dma_resv_is_locked - is the reservation object locked
* @obj: the reservation object
*
* Returns true if the mutex is locked, false if unlocked.
*/
-static inline bool
-reservation_object_is_locked(struct reservation_object *obj)
+static inline bool dma_resv_is_locked(struct dma_resv *obj)
{
return ww_mutex_is_locked(&obj->lock);
}
/**
- * reservation_object_locking_ctx - returns the context used to lock the object
+ * dma_resv_locking_ctx - returns the context used to lock the object
* @obj: the reservation object
*
* Returns the context used to lock a reservation object or NULL if no context
* was used or the object is not locked at all.
*/
-static inline struct ww_acquire_ctx *
-reservation_object_locking_ctx(struct reservation_object *obj)
+static inline struct ww_acquire_ctx *dma_resv_locking_ctx(struct dma_resv *obj)
{
return READ_ONCE(obj->lock.ctx);
}
/**
- * reservation_object_unlock - unlock the reservation object
+ * dma_resv_unlock - unlock the reservation object
* @obj: the reservation object
*
* Unlocks the reservation object following exclusive access.
*/
-static inline void
-reservation_object_unlock(struct reservation_object *obj)
+static inline void dma_resv_unlock(struct dma_resv *obj)
{
#ifdef CONFIG_DEBUG_MUTEXES
/* Test shared fence slot reservation */
if (rcu_access_pointer(obj->fence)) {
- struct reservation_object_list *fence =
- reservation_object_get_list(obj);
+ struct dma_resv_list *fence = dma_resv_get_list(obj);
fence->shared_max = fence->shared_count;
}
@@ -304,29 +290,23 @@ reservation_object_unlock(struct reservation_object *obj)
ww_mutex_unlock(&obj->lock);
}
-void reservation_object_init(struct reservation_object *obj);
-void reservation_object_fini(struct reservation_object *obj);
-int reservation_object_reserve_shared(struct reservation_object *obj,
- unsigned int num_fences);
-void reservation_object_add_shared_fence(struct reservation_object *obj,
- struct dma_fence *fence);
+void dma_resv_init(struct dma_resv *obj);
+void dma_resv_fini(struct dma_resv *obj);
+int dma_resv_reserve_shared(struct dma_resv *obj, unsigned int num_fences);
+void dma_resv_add_shared_fence(struct dma_resv *obj, struct dma_fence *fence);
-void reservation_object_add_excl_fence(struct reservation_object *obj,
- struct dma_fence *fence);
+void dma_resv_add_excl_fence(struct dma_resv *obj, struct dma_fence *fence);
-int reservation_object_get_fences_rcu(struct reservation_object *obj,
- struct dma_fence **pfence_excl,
- unsigned *pshared_count,
- struct dma_fence ***pshared);
+int dma_resv_get_fences_rcu(struct dma_resv *obj,
+ struct dma_fence **pfence_excl,
+ unsigned *pshared_count,
+ struct dma_fence ***pshared);
-int reservation_object_copy_fences(struct reservation_object *dst,
- struct reservation_object *src);
+int dma_resv_copy_fences(struct dma_resv *dst, struct dma_resv *src);
-long reservation_object_wait_timeout_rcu(struct reservation_object *obj,
- bool wait_all, bool intr,
- unsigned long timeout);
+long dma_resv_wait_timeout_rcu(struct dma_resv *obj, bool wait_all, bool intr,
+ unsigned long timeout);
-bool reservation_object_test_signaled_rcu(struct reservation_object *obj,
- bool test_all);
+bool dma_resv_test_signaled_rcu(struct dma_resv *obj, bool test_all);
#endif /* _LINUX_RESERVATION_H */