Displaying 7 results from an estimated 7 matches for "use_cpt".
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use_cpu
2015 Nov 09
2
[PATCH] instmem/gk20a: fix race conditions
...stmem/gk20a.c
index fc419bb8eab7..681b2541229a 100644
--- a/drm/nouveau/nvkm/subdev/instmem/gk20a.c
+++ b/drm/nouveau/nvkm/subdev/instmem/gk20a.c
@@ -57,6 +57,8 @@ struct gk20a_instobj {
/* CPU mapping */
u32 *vaddr;
struct list_head vaddr_node;
+ /* How many clients are using vaddr? */
+ u32 use_cpt;
};
#define gk20a_instobj(p) container_of((p), struct gk20a_instobj, memory)
@@ -158,27 +160,35 @@ gk20a_instobj_cpu_map_iommu(struct nvkm_memory *memory)
}
/*
- * Must be called while holding gk20a_instmem_lock
+ * Recycle the vaddr of obj. Must be called with gk20a_instmem::lock held.
+ *...
2015 Nov 11
0
[PATCH] instmem/gk20a: fix race conditions
...41229a 100644
> --- a/drm/nouveau/nvkm/subdev/instmem/gk20a.c
> +++ b/drm/nouveau/nvkm/subdev/instmem/gk20a.c
> @@ -57,6 +57,8 @@ struct gk20a_instobj {
> /* CPU mapping */
> u32 *vaddr;
> struct list_head vaddr_node;
> + /* How many clients are using vaddr? */
> + u32 use_cpt;
> };
> #define gk20a_instobj(p) container_of((p), struct gk20a_instobj, memory)
>
> @@ -158,27 +160,35 @@ gk20a_instobj_cpu_map_iommu(struct nvkm_memory *memory)
> }
>
> /*
> - * Must be called while holding gk20a_instmem_lock
> + * Recycle the vaddr of obj. Must...
2017 Jan 30
2
[PATCH] drm/nouveau: gk20a: Turn instmem lock into mutex
...t;base.imem;
struct nvkm_ltc *ltc = imem->base.subdev.device->ltc;
const u64 size = nvkm_memory_size(memory);
- unsigned long flags;
nvkm_ltc_flush(ltc);
- spin_lock_irqsave(&imem->lock, flags);
+ mutex_lock(&imem->lock);
if (node->base.vaddr) {
if (!node->use_cpt) {
@@ -216,7 +215,7 @@ gk20a_instobj_acquire_iommu(struct nvkm_memory *memory)
out:
node->use_cpt++;
- spin_unlock_irqrestore(&imem->lock, flags);
+ mutex_unlock(&imem->lock);
return node->base.vaddr;
}
@@ -239,9 +238,8 @@ gk20a_instobj_release_iommu(struct nvkm_memory...
2015 Nov 11
2
[PATCH] instmem/gk20a: use DMA API CPU mapping
...mem/gk20a.c
index 681b2541229a..4c20fec64d96 100644
--- a/drm/nouveau/nvkm/subdev/instmem/gk20a.c
+++ b/drm/nouveau/nvkm/subdev/instmem/gk20a.c
@@ -56,9 +56,6 @@ struct gk20a_instobj {
/* CPU mapping */
u32 *vaddr;
- struct list_head vaddr_node;
- /* How many clients are using vaddr? */
- u32 use_cpt;
};
#define gk20a_instobj(p) container_of((p), struct gk20a_instobj, memory)
@@ -68,7 +65,6 @@ struct gk20a_instobj {
struct gk20a_instobj_dma {
struct gk20a_instobj base;
- u32 *cpuaddr;
dma_addr_t handle;
struct nvkm_mm_node r;
};
@@ -81,6 +77,11 @@ struct gk20a_instobj_dma {
struc...
2017 Feb 24
1
[PATCH] drm/nouveau: gk20a: Turn instmem lock into mutex
...const u64 size = nvkm_memory_size(memory);
>> - unsigned long flags;
>>
>> nvkm_ltc_flush(ltc);
>>
>> - spin_lock_irqsave(&imem->lock, flags);
>> + mutex_lock(&imem->lock);
>>
>> if (node->base.vaddr) {
>> if (!node->use_cpt) {
>> @@ -216,7 +215,7 @@ gk20a_instobj_acquire_iommu(struct nvkm_memory *memory)
>>
>> out:
>> node->use_cpt++;
>> - spin_unlock_irqrestore(&imem->lock, flags);
>> + mutex_unlock(&imem->lock);
>>
>> return node->base.vaddr;
&...
2015 Nov 11
0
[PATCH] instmem/gk20a: use DMA API CPU mapping
...100644
> --- a/drm/nouveau/nvkm/subdev/instmem/gk20a.c
> +++ b/drm/nouveau/nvkm/subdev/instmem/gk20a.c
> @@ -56,9 +56,6 @@ struct gk20a_instobj {
>
> /* CPU mapping */
> u32 *vaddr;
> - struct list_head vaddr_node;
> - /* How many clients are using vaddr? */
> - u32 use_cpt;
> };
> #define gk20a_instobj(p) container_of((p), struct gk20a_instobj, memory)
>
> @@ -68,7 +65,6 @@ struct gk20a_instobj {
> struct gk20a_instobj_dma {
> struct gk20a_instobj base;
>
> - u32 *cpuaddr;
> dma_addr_t handle;
> struct nvkm_mm_node r;
>...
2017 Feb 23
0
[PATCH] drm/nouveau: gk20a: Turn instmem lock into mutex
...e.subdev.device->ltc;
> const u64 size = nvkm_memory_size(memory);
> - unsigned long flags;
>
> nvkm_ltc_flush(ltc);
>
> - spin_lock_irqsave(&imem->lock, flags);
> + mutex_lock(&imem->lock);
>
> if (node->base.vaddr) {
> if (!node->use_cpt) {
> @@ -216,7 +215,7 @@ gk20a_instobj_acquire_iommu(struct nvkm_memory *memory)
>
> out:
> node->use_cpt++;
> - spin_unlock_irqrestore(&imem->lock, flags);
> + mutex_unlock(&imem->lock);
>
> return node->base.vaddr;
> }
> @@ -239,9 +238,8...