| Message ID | 20200814024114.1177553-12-robdclark@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | iommu/arm-smmu: Add Adreno SMMU specific implementation | expand |
On Thu 13 Aug 21:41 CDT 2020, Rob Clark wrote: > From: Jordan Crouse <jcrouse@codeaurora.org> > > Each submitqueue is attached to a context. Add a pointer to the > context to the submitqueue at create time and refcount it so > that it stays around through the life of the queue. > Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> > Co-developed-by: Rob Clark <robdclark@chromium.org> > Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> > Signed-off-by: Rob Clark <robdclark@chromium.org> > --- > drivers/gpu/drm/msm/msm_drv.c | 3 ++- > drivers/gpu/drm/msm/msm_drv.h | 20 ++++++++++++++++++++ > drivers/gpu/drm/msm/msm_gem.h | 1 + > drivers/gpu/drm/msm/msm_gem_submit.c | 6 +++--- > drivers/gpu/drm/msm/msm_gpu.h | 1 + > drivers/gpu/drm/msm/msm_submitqueue.c | 3 +++ > 6 files changed, 30 insertions(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c > index 7d641c7e3514..01845a3b8d52 100644 > --- a/drivers/gpu/drm/msm/msm_drv.c > +++ b/drivers/gpu/drm/msm/msm_drv.c > @@ -594,6 +594,7 @@ static int context_init(struct drm_device *dev, struct drm_file *file) > if (!ctx) > return -ENOMEM; > > + kref_init(&ctx->ref); > msm_submitqueue_init(dev, ctx); > > ctx->aspace = priv->gpu ? priv->gpu->aspace : NULL; > @@ -615,7 +616,7 @@ static int msm_open(struct drm_device *dev, struct drm_file *file) > static void context_close(struct msm_file_private *ctx) > { > msm_submitqueue_close(ctx); > - kfree(ctx); > + msm_file_private_put(ctx); > } > > static void msm_postclose(struct drm_device *dev, struct drm_file *file) > diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h > index af259b0573ea..4561bfb5e745 100644 > --- a/drivers/gpu/drm/msm/msm_drv.h > +++ b/drivers/gpu/drm/msm/msm_drv.h > @@ -57,6 +57,7 @@ struct msm_file_private { > struct list_head submitqueues; > int queueid; > struct msm_gem_address_space *aspace; > + struct kref ref; > }; > > enum msm_mdp_plane_property { > @@ -428,6 +429,25 @@ void msm_submitqueue_close(struct msm_file_private *ctx); > > void msm_submitqueue_destroy(struct kref *kref); > > +static inline void __msm_file_private_destroy(struct kref *kref) > +{ > + struct msm_file_private *ctx = container_of(kref, > + struct msm_file_private, ref); > + > + kfree(ctx); > +} > + > +static inline void msm_file_private_put(struct msm_file_private *ctx) > +{ > + kref_put(&ctx->ref, __msm_file_private_destroy); > +} > + > +static inline struct msm_file_private *msm_file_private_get( > + struct msm_file_private *ctx) > +{ > + kref_get(&ctx->ref); > + return ctx; > +} > > #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__) > #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__) > diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h > index 972490b14ba5..9c573c4269cb 100644 > --- a/drivers/gpu/drm/msm/msm_gem.h > +++ b/drivers/gpu/drm/msm/msm_gem.h > @@ -142,6 +142,7 @@ struct msm_gem_submit { > bool valid; /* true if no cmdstream patching needed */ > bool in_rb; /* "sudo" mode, copy cmds into RB */ > struct msm_ringbuffer *ring; > + struct msm_file_private *ctx; > unsigned int nr_cmds; > unsigned int nr_bos; > u32 ident; /* A "identifier" for the submit for logging */ > diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c > index 8cb9aa15ff90..1464b04d25d3 100644 > --- a/drivers/gpu/drm/msm/msm_gem_submit.c > +++ b/drivers/gpu/drm/msm/msm_gem_submit.c > @@ -27,7 +27,7 @@ > #define BO_PINNED 0x2000 > > static struct msm_gem_submit *submit_create(struct drm_device *dev, > - struct msm_gpu *gpu, struct msm_gem_address_space *aspace, > + struct msm_gpu *gpu, > struct msm_gpu_submitqueue *queue, uint32_t nr_bos, > uint32_t nr_cmds) > { > @@ -43,7 +43,7 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev, > return NULL; > > submit->dev = dev; > - submit->aspace = aspace; > + submit->aspace = queue->ctx->aspace; > submit->gpu = gpu; > submit->fence = NULL; > submit->cmd = (void *)&submit->bos[nr_bos]; > @@ -677,7 +677,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, > } > } > > - submit = submit_create(dev, gpu, ctx->aspace, queue, args->nr_bos, > + submit = submit_create(dev, gpu, queue, args->nr_bos, > args->nr_cmds); > if (!submit) { > ret = -ENOMEM; > diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h > index f91b141add75..97c527e98391 100644 > --- a/drivers/gpu/drm/msm/msm_gpu.h > +++ b/drivers/gpu/drm/msm/msm_gpu.h > @@ -190,6 +190,7 @@ struct msm_gpu_submitqueue { > u32 flags; > u32 prio; > int faults; > + struct msm_file_private *ctx; > struct list_head node; > struct kref ref; > }; > diff --git a/drivers/gpu/drm/msm/msm_submitqueue.c b/drivers/gpu/drm/msm/msm_submitqueue.c > index 90c9d84e6155..c3d206105d28 100644 > --- a/drivers/gpu/drm/msm/msm_submitqueue.c > +++ b/drivers/gpu/drm/msm/msm_submitqueue.c > @@ -12,6 +12,8 @@ void msm_submitqueue_destroy(struct kref *kref) > struct msm_gpu_submitqueue *queue = container_of(kref, > struct msm_gpu_submitqueue, ref); > > + msm_file_private_put(queue->ctx); > + > kfree(queue); > } > > @@ -83,6 +85,7 @@ int msm_submitqueue_create(struct drm_device *drm, struct msm_file_private *ctx, > > write_lock(&ctx->queuelock); > > + queue->ctx = msm_file_private_get(ctx); > queue->id = ctx->queueid++; > > if (id) > -- > 2.26.2 >
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 7d641c7e3514..01845a3b8d52 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -594,6 +594,7 @@ static int context_init(struct drm_device *dev, struct drm_file *file) if (!ctx) return -ENOMEM; + kref_init(&ctx->ref); msm_submitqueue_init(dev, ctx); ctx->aspace = priv->gpu ? priv->gpu->aspace : NULL; @@ -615,7 +616,7 @@ static int msm_open(struct drm_device *dev, struct drm_file *file) static void context_close(struct msm_file_private *ctx) { msm_submitqueue_close(ctx); - kfree(ctx); + msm_file_private_put(ctx); } static void msm_postclose(struct drm_device *dev, struct drm_file *file) diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index af259b0573ea..4561bfb5e745 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -57,6 +57,7 @@ struct msm_file_private { struct list_head submitqueues; int queueid; struct msm_gem_address_space *aspace; + struct kref ref; }; enum msm_mdp_plane_property { @@ -428,6 +429,25 @@ void msm_submitqueue_close(struct msm_file_private *ctx); void msm_submitqueue_destroy(struct kref *kref); +static inline void __msm_file_private_destroy(struct kref *kref) +{ + struct msm_file_private *ctx = container_of(kref, + struct msm_file_private, ref); + + kfree(ctx); +} + +static inline void msm_file_private_put(struct msm_file_private *ctx) +{ + kref_put(&ctx->ref, __msm_file_private_destroy); +} + +static inline struct msm_file_private *msm_file_private_get( + struct msm_file_private *ctx) +{ + kref_get(&ctx->ref); + return ctx; +} #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__) #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__) diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index 972490b14ba5..9c573c4269cb 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -142,6 +142,7 @@ struct msm_gem_submit { bool valid; /* true if no cmdstream patching needed */ bool in_rb; /* "sudo" mode, copy cmds into RB */ struct msm_ringbuffer *ring; + struct msm_file_private *ctx; unsigned int nr_cmds; unsigned int nr_bos; u32 ident; /* A "identifier" for the submit for logging */ diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 8cb9aa15ff90..1464b04d25d3 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -27,7 +27,7 @@ #define BO_PINNED 0x2000 static struct msm_gem_submit *submit_create(struct drm_device *dev, - struct msm_gpu *gpu, struct msm_gem_address_space *aspace, + struct msm_gpu *gpu, struct msm_gpu_submitqueue *queue, uint32_t nr_bos, uint32_t nr_cmds) { @@ -43,7 +43,7 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev, return NULL; submit->dev = dev; - submit->aspace = aspace; + submit->aspace = queue->ctx->aspace; submit->gpu = gpu; submit->fence = NULL; submit->cmd = (void *)&submit->bos[nr_bos]; @@ -677,7 +677,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, } } - submit = submit_create(dev, gpu, ctx->aspace, queue, args->nr_bos, + submit = submit_create(dev, gpu, queue, args->nr_bos, args->nr_cmds); if (!submit) { ret = -ENOMEM; diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index f91b141add75..97c527e98391 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -190,6 +190,7 @@ struct msm_gpu_submitqueue { u32 flags; u32 prio; int faults; + struct msm_file_private *ctx; struct list_head node; struct kref ref; }; diff --git a/drivers/gpu/drm/msm/msm_submitqueue.c b/drivers/gpu/drm/msm/msm_submitqueue.c index 90c9d84e6155..c3d206105d28 100644 --- a/drivers/gpu/drm/msm/msm_submitqueue.c +++ b/drivers/gpu/drm/msm/msm_submitqueue.c @@ -12,6 +12,8 @@ void msm_submitqueue_destroy(struct kref *kref) struct msm_gpu_submitqueue *queue = container_of(kref, struct msm_gpu_submitqueue, ref); + msm_file_private_put(queue->ctx); + kfree(queue); } @@ -83,6 +85,7 @@ int msm_submitqueue_create(struct drm_device *drm, struct msm_file_private *ctx, write_lock(&ctx->queuelock); + queue->ctx = msm_file_private_get(ctx); queue->id = ctx->queueid++; if (id)