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Subject[PATCH v2 08/15] drm/msm: Pass the MMU domain index in struct msm_file_private
Date
Pass the index of the MMU domain in struct msm_file_private instead
of assuming gpu->id throughout the submit path. This clears the way
to change ctx->aspace to a per-instance pagetable.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---

drivers/gpu/drm/msm/msm_drv.c | 2 ++
drivers/gpu/drm/msm/msm_drv.h | 1 +
drivers/gpu/drm/msm/msm_gem.h | 1 +
drivers/gpu/drm/msm/msm_gem_submit.c | 13 ++++++++-----
drivers/gpu/drm/msm/msm_gpu.c | 5 ++---
5 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 31deb87..4c51063 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -611,6 +611,7 @@ static void load_gpu(struct drm_device *dev)

static int context_init(struct drm_device *dev, struct drm_file *file)
{
+ struct msm_drm_private *priv = dev->dev_private;
struct msm_file_private *ctx;

ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
@@ -619,6 +620,7 @@ static int context_init(struct drm_device *dev, struct drm_file *file)

msm_submitqueue_init(dev, ctx);

+ ctx->aspace = priv->gpu->aspace;
file->driver_priv = ctx;

return 0;
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index e20e6b4..d9aa7ba 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -68,6 +68,7 @@ struct msm_file_private {
rwlock_t queuelock;
struct list_head submitqueues;
int queueid;
+ struct msm_gem_address_space *aspace;
};

enum msm_mdp_plane_property {
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index 812d1b1..36aeb58 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -141,6 +141,7 @@ void msm_gem_free_work(struct work_struct *work);
struct msm_gem_submit {
struct drm_device *dev;
struct msm_gpu *gpu;
+ struct msm_gem_address_space *aspace;
struct list_head node; /* node in ring submit list */
struct list_head bo_list;
struct ww_acquire_ctx ticket;
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 1b68130..d3801bf 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -32,8 +32,9 @@
#define BO_PINNED 0x2000

static struct msm_gem_submit *submit_create(struct drm_device *dev,
- struct msm_gpu *gpu, struct msm_gpu_submitqueue *queue,
- uint32_t nr_bos, uint32_t nr_cmds)
+ struct msm_gpu *gpu, struct msm_gem_address_space *aspace,
+ struct msm_gpu_submitqueue *queue, uint32_t nr_bos,
+ uint32_t nr_cmds)
{
struct msm_gem_submit *submit;
uint64_t sz = sizeof(*submit) + ((u64)nr_bos * sizeof(submit->bos[0])) +
@@ -47,6 +48,7 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev,
return NULL;

submit->dev = dev;
+ submit->aspace = aspace;
submit->gpu = gpu;
submit->fence = NULL;
submit->cmd = (void *)&submit->bos[nr_bos];
@@ -160,7 +162,7 @@ static void submit_unlock_unpin_bo(struct msm_gem_submit *submit,
struct msm_gem_object *msm_obj = submit->bos[i].obj;

if (submit->bos[i].flags & BO_PINNED)
- msm_gem_unpin_iova(&msm_obj->base, submit->gpu->aspace);
+ msm_gem_unpin_iova(&msm_obj->base, submit->aspace);

if (submit->bos[i].flags & BO_LOCKED)
ww_mutex_unlock(&msm_obj->base.resv->lock);
@@ -264,7 +266,7 @@ static int submit_pin_objects(struct msm_gem_submit *submit)

/* if locking succeeded, pin bo: */
ret = msm_gem_get_and_pin_iova(&msm_obj->base,
- submit->gpu->aspace, &iova);
+ submit->aspace, &iova);

if (ret)
break;
@@ -477,7 +479,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
}
}

- submit = submit_create(dev, gpu, queue, args->nr_bos, args->nr_cmds);
+ submit = submit_create(dev, gpu, ctx->aspace, queue, args->nr_bos,
+ args->nr_cmds);
if (!submit) {
ret = -ENOMEM;
goto out_unlock;
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index bf4ee27..0a4c77f 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -684,7 +684,7 @@ static void retire_submit(struct msm_gpu *gpu, struct msm_ringbuffer *ring,
struct msm_gem_object *msm_obj = submit->bos[i].obj;
/* move to inactive: */
msm_gem_move_to_inactive(&msm_obj->base);
- msm_gem_unpin_iova(&msm_obj->base, gpu->aspace);
+ msm_gem_unpin_iova(&msm_obj->base, submit->aspace);
drm_gem_object_put(&msm_obj->base);
}

@@ -768,8 +768,7 @@ void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,

/* submit takes a reference to the bo and iova until retired: */
drm_gem_object_get(&msm_obj->base);
- msm_gem_get_and_pin_iova(&msm_obj->base,
- submit->gpu->aspace, &iova);
+ msm_gem_get_and_pin_iova(&msm_obj->base, submit->aspace, &iova);

if (submit->bos[i].flags & MSM_SUBMIT_BO_WRITE)
msm_gem_move_to_active(&msm_obj->base, gpu, true, submit->fence);
--
2.7.4
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