[PATCH 7/9] drm/amdgpu: add bo_list iterators
Huang Rui
ray.huang at amd.com
Tue Jul 31 06:12:43 UTC 2018
On Mon, Jul 30, 2018 at 04:51:57PM +0200, Christian König wrote:
> Add helpers to iterate over all entries in a bo_list.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
Nice wrapper.
Acked-by: Huang Rui <ray.huang at amd.com>
Thanks,
Ray
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c | 21 ++++++------
> drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h | 10 ++++++
> drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 51 +++++++++++++----------------
> 3 files changed, 43 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
> index 5335f1b5459f..096bcf4a6334 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
> @@ -43,12 +43,12 @@ static int amdgpu_bo_list_set(struct amdgpu_device *adev,
>
> static void amdgpu_bo_list_release_rcu(struct kref *ref)
> {
> - unsigned i;
> struct amdgpu_bo_list *list = container_of(ref, struct amdgpu_bo_list,
> refcount);
> + struct amdgpu_bo_list_entry *e;
>
> - for (i = 0; i < list->num_entries; ++i)
> - amdgpu_bo_unref(&list->array[i].robj);
> + amdgpu_bo_list_for_each_entry(e, list)
> + amdgpu_bo_unref(&e->robj);
>
> kvfree(list->array);
> kfree_rcu(list, rhead);
> @@ -103,6 +103,7 @@ static int amdgpu_bo_list_set(struct amdgpu_device *adev,
> struct amdgpu_bo *oa_obj = adev->gds.oa_gfx_bo;
>
> unsigned last_entry = 0, first_userptr = num_entries;
> + struct amdgpu_bo_list_entry *e;
> uint64_t total_size = 0;
> unsigned i;
> int r;
> @@ -156,7 +157,7 @@ static int amdgpu_bo_list_set(struct amdgpu_device *adev,
> trace_amdgpu_bo_list_set(list, entry->robj);
> }
>
> - for (i = 0; i < list->num_entries; ++i)
> + amdgpu_bo_list_for_each_entry(e, list)
> amdgpu_bo_unref(&list->array[i].robj);
>
> kvfree(list->array);
> @@ -201,6 +202,7 @@ void amdgpu_bo_list_get_list(struct amdgpu_bo_list *list,
> * concatenated in descending order.
> */
> struct list_head bucket[AMDGPU_BO_LIST_NUM_BUCKETS];
> + struct amdgpu_bo_list_entry *e;
> unsigned i;
>
> for (i = 0; i < AMDGPU_BO_LIST_NUM_BUCKETS; i++)
> @@ -211,14 +213,13 @@ void amdgpu_bo_list_get_list(struct amdgpu_bo_list *list,
> * in the list, the sort mustn't change the ordering of buffers
> * with the same priority, i.e. it must be stable.
> */
> - for (i = 0; i < list->num_entries; i++) {
> - unsigned priority = list->array[i].priority;
> + amdgpu_bo_list_for_each_entry(e, list) {
> + unsigned priority = e->priority;
>
> - if (!list->array[i].robj->parent)
> - list_add_tail(&list->array[i].tv.head,
> - &bucket[priority]);
> + if (!e->robj->parent)
> + list_add_tail(&e->tv.head, &bucket[priority]);
>
> - list->array[i].user_pages = NULL;
> + e->user_pages = NULL;
> }
>
> /* Connect the sorted buckets in the output list. */
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h
> index 0ce540203db1..3d77abfcd4a6 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h
> @@ -65,4 +65,14 @@ int amdgpu_bo_list_create(struct amdgpu_device *adev,
> unsigned num_entries,
> struct amdgpu_bo_list **list);
>
> +#define amdgpu_bo_list_for_each_entry(e, list) \
> + for (e = &(list)->array[0]; \
> + e != &(list)->array[(list)->num_entries]; \
> + ++e)
> +
> +#define amdgpu_bo_list_for_each_userptr_entry(e, list) \
> + for (e = &(list)->array[(list)->first_userptr]; \
> + e != &(list)->array[(list)->num_entries]; \
> + ++e)
> +
> #endif
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> index f7154f3ed807..1d7292ab2b62 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> @@ -563,10 +563,10 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
> struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
> struct amdgpu_bo_list_entry *e;
> struct list_head duplicates;
> - unsigned i, tries = 10;
> struct amdgpu_bo *gds;
> struct amdgpu_bo *gws;
> struct amdgpu_bo *oa;
> + unsigned tries = 10;
> int r;
>
> INIT_LIST_HEAD(&p->validated);
> @@ -596,7 +596,6 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
>
> while (1) {
> struct list_head need_pages;
> - unsigned i;
>
> r = ttm_eu_reserve_buffers(&p->ticket, &p->validated, true,
> &duplicates);
> @@ -611,12 +610,8 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
> break;
>
> INIT_LIST_HEAD(&need_pages);
> - for (i = p->bo_list->first_userptr;
> - i < p->bo_list->num_entries; ++i) {
> - struct amdgpu_bo *bo;
> -
> - e = &p->bo_list->array[i];
> - bo = e->robj;
> + amdgpu_bo_list_for_each_userptr_entry(e, p->bo_list) {
> + struct amdgpu_bo *bo = e->robj;
>
> if (amdgpu_ttm_tt_userptr_invalidated(bo->tbo.ttm,
> &e->user_invalidated) && e->user_pages) {
> @@ -710,16 +705,14 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
>
> if (p->bo_list) {
> struct amdgpu_vm *vm = &fpriv->vm;
> - unsigned i;
> + struct amdgpu_bo_list_entry *e;
>
> gds = p->bo_list->gds_obj;
> gws = p->bo_list->gws_obj;
> oa = p->bo_list->oa_obj;
> - for (i = 0; i < p->bo_list->num_entries; i++) {
> - struct amdgpu_bo *bo = p->bo_list->array[i].robj;
>
> - p->bo_list->array[i].bo_va = amdgpu_vm_bo_find(vm, bo);
> - }
> + amdgpu_bo_list_for_each_entry(e, p->bo_list)
> + e->bo_va = amdgpu_vm_bo_find(vm, e->robj);
> } else {
> gds = p->adev->gds.gds_gfx_bo;
> gws = p->adev->gds.gws_gfx_bo;
> @@ -753,10 +746,7 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
> error_free_pages:
>
> if (p->bo_list) {
> - for (i = p->bo_list->first_userptr;
> - i < p->bo_list->num_entries; ++i) {
> - e = &p->bo_list->array[i];
> -
> + amdgpu_bo_list_for_each_userptr_entry(e, p->bo_list) {
> if (!e->user_pages)
> continue;
>
> @@ -830,7 +820,7 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p)
> struct amdgpu_vm *vm = &fpriv->vm;
> struct amdgpu_bo_va *bo_va;
> struct amdgpu_bo *bo;
> - int i, r;
> + int r;
>
> r = amdgpu_vm_clear_freed(adev, vm, NULL);
> if (r)
> @@ -861,15 +851,17 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p)
> }
>
> if (p->bo_list) {
> - for (i = 0; i < p->bo_list->num_entries; i++) {
> + struct amdgpu_bo_list_entry *e;
> +
> + amdgpu_bo_list_for_each_entry(e, p->bo_list) {
> struct dma_fence *f;
>
> /* ignore duplicates */
> - bo = p->bo_list->array[i].robj;
> + bo = e->robj;
> if (!bo)
> continue;
>
> - bo_va = p->bo_list->array[i].bo_va;
> + bo_va = e->bo_va;
> if (bo_va == NULL)
> continue;
>
> @@ -898,14 +890,15 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p)
> return r;
>
> if (amdgpu_vm_debug && p->bo_list) {
> + struct amdgpu_bo_list_entry *e;
> +
> /* Invalidate all BOs to test for userspace bugs */
> - for (i = 0; i < p->bo_list->num_entries; i++) {
> + amdgpu_bo_list_for_each_entry(e, p->bo_list) {
> /* ignore duplicates */
> - bo = p->bo_list->array[i].robj;
> - if (!bo)
> + if (!e->robj)
> continue;
>
> - amdgpu_vm_bo_invalidate(adev, bo, false);
> + amdgpu_vm_bo_invalidate(adev, e->robj, false);
> }
> }
>
> @@ -1225,16 +1218,16 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
> struct drm_sched_entity *entity = &p->ctx->rings[ring->idx].entity;
> enum drm_sched_priority priority;
> struct amdgpu_job *job;
> - unsigned i;
> uint64_t seq;
>
> int r;
>
> amdgpu_mn_lock(p->mn);
> if (p->bo_list) {
> - for (i = p->bo_list->first_userptr;
> - i < p->bo_list->num_entries; ++i) {
> - struct amdgpu_bo *bo = p->bo_list->array[i].robj;
> + struct amdgpu_bo_list_entry *e;
> +
> + amdgpu_bo_list_for_each_userptr_entry(e, p->bo_list) {
> + struct amdgpu_bo *bo = e->robj;
>
> if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm)) {
> amdgpu_mn_unlock(p->mn);
> --
> 2.14.1
>
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