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drm/amdgpu: remove ring lru handling

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Not needed any more.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2018-07-16 15:23:15 +02:00
committed by Alex Deucher
parent 869a53d4d7
commit 86275d090f
2 changed files with 0 additions and 103 deletions
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98
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
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@@ -135,9 +135,6 @@ void amdgpu_ring_commit(struct amdgpu_ring *ring)
if (ring->funcs->end_use)
ring->funcs->end_use(ring);
if (ring->funcs->type != AMDGPU_RING_TYPE_KIQ)
amdgpu_ring_lru_touch(ring->adev, ring);
}
/**
@@ -320,8 +317,6 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
ring->max_dw = max_dw;
ring->priority = DRM_SCHED_PRIORITY_NORMAL;
mutex_init(&ring->priority_mutex);
INIT_LIST_HEAD(&ring->lru_list);
amdgpu_ring_lru_touch(adev, ring);
for (i = 0; i < DRM_SCHED_PRIORITY_MAX; ++i)
atomic_set(&ring->num_jobs[i], 0);
@@ -368,99 +363,6 @@ void amdgpu_ring_fini(struct amdgpu_ring *ring)
ring->adev->rings[ring->idx] = NULL;
}
static void amdgpu_ring_lru_touch_locked(struct amdgpu_device *adev,
struct amdgpu_ring *ring)
{
/* list_move_tail handles the case where ring isn't part of the list */
list_move_tail(&ring->lru_list, &adev->ring_lru_list);
}
static bool amdgpu_ring_is_blacklisted(struct amdgpu_ring *ring,
int *blacklist, int num_blacklist)
{
int i;
for (i = 0; i < num_blacklist; i++) {
if (ring->idx == blacklist[i])
return true;
}
return false;
}
/**
* amdgpu_ring_lru_get - get the least recently used ring for a HW IP block
*
* @adev: amdgpu_device pointer
* @type: amdgpu_ring_type enum
* @blacklist: blacklisted ring ids array
* @num_blacklist: number of entries in @blacklist
* @lru_pipe_order: find a ring from the least recently used pipe
* @ring: output ring
*
* Retrieve the amdgpu_ring structure for the least recently used ring of
* a specific IP block (all asics).
* Returns 0 on success, error on failure.
*/
int amdgpu_ring_lru_get(struct amdgpu_device *adev, int type,
int *blacklist, int num_blacklist,
bool lru_pipe_order, struct amdgpu_ring **ring)
{
struct amdgpu_ring *entry;
/* List is sorted in LRU order, find first entry corresponding
* to the desired HW IP */
*ring = NULL;
spin_lock(&adev->ring_lru_list_lock);
list_for_each_entry(entry, &adev->ring_lru_list, lru_list) {
if (entry->funcs->type != type)
continue;
if (amdgpu_ring_is_blacklisted(entry, blacklist, num_blacklist))
continue;
if (!*ring) {
*ring = entry;
/* We are done for ring LRU */
if (!lru_pipe_order)
break;
}
/* Move all rings on the same pipe to the end of the list */
if (entry->pipe == (*ring)->pipe)
amdgpu_ring_lru_touch_locked(adev, entry);
}
/* Move the ring we found to the end of the list */
if (*ring)
amdgpu_ring_lru_touch_locked(adev, *ring);
spin_unlock(&adev->ring_lru_list_lock);
if (!*ring) {
DRM_ERROR("Ring LRU contains no entries for ring type:%d\n", type);
return -EINVAL;
}
return 0;
}
/**
* amdgpu_ring_lru_touch - mark a ring as recently being used
*
* @adev: amdgpu_device pointer
* @ring: ring to touch
*
* Move @ring to the tail of the lru list
*/
void amdgpu_ring_lru_touch(struct amdgpu_device *adev, struct amdgpu_ring *ring)
{
spin_lock(&adev->ring_lru_list_lock);
amdgpu_ring_lru_touch_locked(adev, ring);
spin_unlock(&adev->ring_lru_list_lock);
}
/**
* amdgpu_ring_emit_reg_write_reg_wait_helper - ring helper
*