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drm: rename null fence to stub fence in syncobj v2 

moved to front of file.
stub fence will be used by timeline syncobj as well.

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/246539/
hifive-unleashed-5.1
Chunming Zhou 2018-08-30 14:48:28 +08:00 committed by Christian König
parent 94e4c5305a
commit e28bd101ae
1 changed files with 29 additions and 24 deletions
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53
drivers/gpu/drm/drm_syncobj.c
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@ -56,6 +56,33 @@
#include "drm_internal.h"
#include <drm/drm_syncobj.h>
struct drm_syncobj_stub_fence {
struct dma_fence base;
spinlock_t lock;
};
static const char *drm_syncobj_stub_fence_get_name(struct dma_fence *fence)
{
return "syncobjstub";
}
static bool drm_syncobj_stub_fence_enable_signaling(struct dma_fence *fence)
{
return !dma_fence_is_signaled(fence);
}
static void drm_syncobj_stub_fence_release(struct dma_fence *f)
{
kfree(f);
}
static const struct dma_fence_ops drm_syncobj_stub_fence_ops = {
.get_driver_name = drm_syncobj_stub_fence_get_name,
.get_timeline_name = drm_syncobj_stub_fence_get_name,
.enable_signaling = drm_syncobj_stub_fence_enable_signaling,
.release = drm_syncobj_stub_fence_release,
};
/**
* drm_syncobj_find - lookup and reference a sync object.
* @file_private: drm file private pointer
@ -172,37 +199,15 @@ void drm_syncobj_replace_fence(struct drm_syncobj *syncobj,
}
EXPORT_SYMBOL(drm_syncobj_replace_fence);
struct drm_syncobj_null_fence {
struct dma_fence base;
spinlock_t lock;
};
static const char *drm_syncobj_null_fence_get_name(struct dma_fence *fence)
{
return "syncobjnull";
}
static bool drm_syncobj_null_fence_enable_signaling(struct dma_fence *fence)
{
return !dma_fence_is_signaled(fence);
}
static const struct dma_fence_ops drm_syncobj_null_fence_ops = {
.get_driver_name = drm_syncobj_null_fence_get_name,
.get_timeline_name = drm_syncobj_null_fence_get_name,
.enable_signaling = drm_syncobj_null_fence_enable_signaling,
.release = NULL,
};
static int drm_syncobj_assign_null_handle(struct drm_syncobj *syncobj)
{
struct drm_syncobj_null_fence *fence;
struct drm_syncobj_stub_fence *fence;
fence = kzalloc(sizeof(*fence), GFP_KERNEL);
if (fence == NULL)
return -ENOMEM;
spin_lock_init(&fence->lock);
dma_fence_init(&fence->base, &drm_syncobj_null_fence_ops,
dma_fence_init(&fence->base, &drm_syncobj_stub_fence_ops,
&fence->lock, 0, 0);
dma_fence_signal(&fence->base);