xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dma-buf: Rename struct fence to dma_fence

Browse Source 
I plan to usurp the short name of struct fence for a core kernel struct,
and so I need to rename the specialised fence/timeline for DMA
operations to make room.

A consensus was reached in
https://lists.freedesktop.org/archives/dri-devel/2016-July/113083.html
that making clear this fence applies to DMA operations was a good thing.
Since then the patch has grown a bit as usage increases, so hopefully it
remains a good thing!

(v2...: rebase, rerun spatch)
v3: Compile on msm, spotted a manual fixup that I broke.
v4: Try again for msm, sorry Daniel

coccinelle script:
@@

@@
- struct fence
+ struct dma_fence
@@

@@
- struct fence_ops
+ struct dma_fence_ops
@@

@@
- struct fence_cb
+ struct dma_fence_cb
@@

@@
- struct fence_array
+ struct dma_fence_array
@@

@@
- enum fence_flag_bits
+ enum dma_fence_flag_bits
@@

@@
(
- fence_init
+ dma_fence_init
|
- fence_release
+ dma_fence_release
|
- fence_free
+ dma_fence_free
|
- fence_get
+ dma_fence_get
|
- fence_get_rcu
+ dma_fence_get_rcu
|
- fence_put
+ dma_fence_put
|
- fence_signal
+ dma_fence_signal
|
- fence_signal_locked
+ dma_fence_signal_locked
|
- fence_default_wait
+ dma_fence_default_wait
|
- fence_add_callback
+ dma_fence_add_callback
|
- fence_remove_callback
+ dma_fence_remove_callback
|
- fence_enable_sw_signaling
+ dma_fence_enable_sw_signaling
|
- fence_is_signaled_locked
+ dma_fence_is_signaled_locked
|
- fence_is_signaled
+ dma_fence_is_signaled
|
- fence_is_later
+ dma_fence_is_later
|
- fence_later
+ dma_fence_later
|
- fence_wait_timeout
+ dma_fence_wait_timeout
|
- fence_wait_any_timeout
+ dma_fence_wait_any_timeout
|
- fence_wait
+ dma_fence_wait
|
- fence_context_alloc
+ dma_fence_context_alloc
|
- fence_array_create
+ dma_fence_array_create
|
- to_fence_array
+ to_dma_fence_array
|
- fence_is_array
+ dma_fence_is_array
|
- trace_fence_emit
+ trace_dma_fence_emit
|
- FENCE_TRACE
+ DMA_FENCE_TRACE
|
- FENCE_WARN
+ DMA_FENCE_WARN
|
- FENCE_ERR
+ DMA_FENCE_ERR
)
 (
 ...
 )

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161025120045.28839-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2016-10-25 13:00:45 +01:00
committed by Daniel Vetter
parent 0fc4f78f44
commit f54d186700
110 changed files with 1251 additions and 1213 deletions
Download Patch File Download Diff File Expand all files Collapse all files

94
drivers/dma-buf/reservation.c
View File

@@ -102,17 +102,17 @@ EXPORT_SYMBOL(reservation_object_reserve_shared);
static void
reservation_object_add_shared_inplace(struct reservation_object *obj,
struct reservation_object_list *fobj,
struct fence *fence)
struct dma_fence *fence)
{
u32 i;
fence_get(fence);
dma_fence_get(fence);
preempt_disable();
write_seqcount_begin(&obj->seq);
for (i = 0; i < fobj->shared_count; ++i) {
struct fence *old_fence;
struct dma_fence *old_fence;
old_fence = rcu_dereference_protected(fobj->shared[i],
reservation_object_held(obj));
@@ -123,7 +123,7 @@ reservation_object_add_shared_inplace(struct reservation_object *obj,
write_seqcount_end(&obj->seq);
preempt_enable();
fence_put(old_fence);
dma_fence_put(old_fence);
return;
}
}
@@ -143,12 +143,12 @@ static void
reservation_object_add_shared_replace(struct reservation_object *obj,
struct reservation_object_list *old,
struct reservation_object_list *fobj,
struct fence *fence)
struct dma_fence *fence)
{
unsigned i;
struct fence *old_fence = NULL;
struct dma_fence *old_fence = NULL;
fence_get(fence);
dma_fence_get(fence);
if (!old) {
RCU_INIT_POINTER(fobj->shared[0], fence);
@@ -165,7 +165,7 @@ reservation_object_add_shared_replace(struct reservation_object *obj,
fobj->shared_count = old->shared_count;
for (i = 0; i < old->shared_count; ++i) {
struct fence *check;
struct dma_fence *check;
check = rcu_dereference_protected(old->shared[i],
reservation_object_held(obj));
@@ -196,7 +196,7 @@ done:
kfree_rcu(old, rcu);
if (old_fence)
fence_put(old_fence);
dma_fence_put(old_fence);
}
/**
@@ -208,7 +208,7 @@ done:
* reservation_object_reserve_shared() has been called.
*/
void reservation_object_add_shared_fence(struct reservation_object *obj,
struct fence *fence)
struct dma_fence *fence)
{
struct reservation_object_list *old, *fobj = obj->staged;
@@ -231,9 +231,9 @@ EXPORT_SYMBOL(reservation_object_add_shared_fence);
* Add a fence to the exclusive slot. The obj->lock must be held.
*/
void reservation_object_add_excl_fence(struct reservation_object *obj,
struct fence *fence)
struct dma_fence *fence)
{
struct fence *old_fence = reservation_object_get_excl(obj);
struct dma_fence *old_fence = reservation_object_get_excl(obj);
struct reservation_object_list *old;
u32 i = 0;
@@ -242,7 +242,7 @@ void reservation_object_add_excl_fence(struct reservation_object *obj,
i = old->shared_count;
if (fence)
fence_get(fence);
dma_fence_get(fence);
preempt_disable();
write_seqcount_begin(&obj->seq);
@@ -255,11 +255,11 @@ void reservation_object_add_excl_fence(struct reservation_object *obj,
/* inplace update, no shared fences */
while (i--)
fence_put(rcu_dereference_protected(old->shared[i],
dma_fence_put(rcu_dereference_protected(old->shared[i],
reservation_object_held(obj)));
if (old_fence)
fence_put(old_fence);
dma_fence_put(old_fence);
}
EXPORT_SYMBOL(reservation_object_add_excl_fence);
@@ -276,12 +276,12 @@ EXPORT_SYMBOL(reservation_object_add_excl_fence);
* Zero or -errno
*/
int reservation_object_get_fences_rcu(struct reservation_object *obj,
struct fence **pfence_excl,
struct dma_fence **pfence_excl,
unsigned *pshared_count,
struct fence ***pshared)
struct dma_fence ***pshared)
{
struct fence **shared = NULL;
struct fence *fence_excl;
struct dma_fence **shared = NULL;
struct dma_fence *fence_excl;
unsigned int shared_count;
int ret = 1;
@@ -296,12 +296,12 @@ int reservation_object_get_fences_rcu(struct reservation_object *obj,
seq = read_seqcount_begin(&obj->seq);
fence_excl = rcu_dereference(obj->fence_excl);
if (fence_excl && !fence_get_rcu(fence_excl))
if (fence_excl && !dma_fence_get_rcu(fence_excl))
goto unlock;
fobj = rcu_dereference(obj->fence);
if (fobj) {
struct fence **nshared;
struct dma_fence **nshared;
size_t sz = sizeof(*shared) * fobj->shared_max;
nshared = krealloc(shared, sz,
@@ -322,15 +322,15 @@ int reservation_object_get_fences_rcu(struct reservation_object *obj,
for (i = 0; i < shared_count; ++i) {
shared[i] = rcu_dereference(fobj->shared[i]);
if (!fence_get_rcu(shared[i]))
if (!dma_fence_get_rcu(shared[i]))
break;
}
}
if (i != shared_count || read_seqcount_retry(&obj->seq, seq)) {
while (i--)
fence_put(shared[i]);
fence_put(fence_excl);
dma_fence_put(shared[i]);
dma_fence_put(fence_excl);
goto unlock;
}
@@ -368,7 +368,7 @@ long reservation_object_wait_timeout_rcu(struct reservation_object *obj,
bool wait_all, bool intr,
unsigned long timeout)
{
struct fence *fence;
struct dma_fence *fence;
unsigned seq, shared_count, i = 0;
long ret = timeout;
@@ -389,16 +389,17 @@ retry:
shared_count = fobj->shared_count;
for (i = 0; i < shared_count; ++i) {
struct fence *lfence = rcu_dereference(fobj->shared[i]);
struct dma_fence *lfence = rcu_dereference(fobj->shared[i]);
if (test_bit(FENCE_FLAG_SIGNALED_BIT, &lfence->flags))
if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT,
&lfence->flags))
continue;
if (!fence_get_rcu(lfence))
if (!dma_fence_get_rcu(lfence))
goto unlock_retry;
if (fence_is_signaled(lfence)) {
fence_put(lfence);
if (dma_fence_is_signaled(lfence)) {
dma_fence_put(lfence);
continue;
}
@@ -408,15 +409,16 @@ retry:
}
if (!shared_count) {
struct fence *fence_excl = rcu_dereference(obj->fence_excl);
struct dma_fence *fence_excl = rcu_dereference(obj->fence_excl);
if (fence_excl &&
!test_bit(FENCE_FLAG_SIGNALED_BIT, &fence_excl->flags)) {
if (!fence_get_rcu(fence_excl))
!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT,
&fence_excl->flags)) {
if (!dma_fence_get_rcu(fence_excl))
goto unlock_retry;
if (fence_is_signaled(fence_excl))
fence_put(fence_excl);
if (dma_fence_is_signaled(fence_excl))
dma_fence_put(fence_excl);
else
fence = fence_excl;
}
@@ -425,12 +427,12 @@ retry:
rcu_read_unlock();
if (fence) {
if (read_seqcount_retry(&obj->seq, seq)) {
fence_put(fence);
dma_fence_put(fence);
goto retry;
}
ret = fence_wait_timeout(fence, intr, ret);
fence_put(fence);
ret = dma_fence_wait_timeout(fence, intr, ret);
dma_fence_put(fence);
if (ret > 0 && wait_all && (i + 1 < shared_count))
goto retry;
}
@@ -444,18 +446,18 @@ EXPORT_SYMBOL_GPL(reservation_object_wait_timeout_rcu);
static inline int
reservation_object_test_signaled_single(struct fence *passed_fence)
reservation_object_test_signaled_single(struct dma_fence *passed_fence)
{
struct fence *fence, *lfence = passed_fence;
struct dma_fence *fence, *lfence = passed_fence;
int ret = 1;
if (!test_bit(FENCE_FLAG_SIGNALED_BIT, &lfence->flags)) {
fence = fence_get_rcu(lfence);
if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &lfence->flags)) {
fence = dma_fence_get_rcu(lfence);
if (!fence)
return -1;
ret = !!fence_is_signaled(fence);
fence_put(fence);
ret = !!dma_fence_is_signaled(fence);
dma_fence_put(fence);
}
return ret;
}
@@ -492,7 +494,7 @@ retry:
shared_count = fobj->shared_count;
for (i = 0; i < shared_count; ++i) {
struct fence *fence = rcu_dereference(fobj->shared[i]);
struct dma_fence *fence = rcu_dereference(fobj->shared[i]);
ret = reservation_object_test_signaled_single(fence);
if (ret < 0)
@@ -506,7 +508,7 @@ retry:
}
if (!shared_count) {
struct fence *fence_excl = rcu_dereference(obj->fence_excl);
struct dma_fence *fence_excl = rcu_dereference(obj->fence_excl);
if (fence_excl) {
ret = reservation_object_test_signaled_single(