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drm/ttm: optimize ttm pool shrinker a bit 

Only initialize the DMA coherent pools if they are used.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/414957/
This commit is contained in:
Christian König 2020-11-17 16:35:24 +01:00
parent 568517686f
commit f987c9e0f5
1 changed files with 16 additions and 7 deletions
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23
drivers/gpu/drm/ttm/ttm_pool.c
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@ -505,10 +505,12 @@ void ttm_pool_init(struct ttm_pool *pool, struct device *dev,
pool->use_dma_alloc = use_dma_alloc;
pool->use_dma32 = use_dma32;
for (i = 0; i < TTM_NUM_CACHING_TYPES; ++i)
for (j = 0; j < MAX_ORDER; ++j)
ttm_pool_type_init(&pool->caching[i].orders[j],
pool, i, j);
if (use_dma_alloc) {
for (i = 0; i < TTM_NUM_CACHING_TYPES; ++i)
for (j = 0; j < MAX_ORDER; ++j)
ttm_pool_type_init(&pool->caching[i].orders[j],
pool, i, j);
}
}
EXPORT_SYMBOL(ttm_pool_init);
@ -524,9 +526,11 @@ void ttm_pool_fini(struct ttm_pool *pool)
{
unsigned int i, j;
for (i = 0; i < TTM_NUM_CACHING_TYPES; ++i)
for (j = 0; j < MAX_ORDER; ++j)
ttm_pool_type_fini(&pool->caching[i].orders[j]);
if (pool->use_dma_alloc) {
for (i = 0; i < TTM_NUM_CACHING_TYPES; ++i)
for (j = 0; j < MAX_ORDER; ++j)
ttm_pool_type_fini(&pool->caching[i].orders[j]);
}
}
EXPORT_SYMBOL(ttm_pool_fini);
@ -631,6 +635,11 @@ int ttm_pool_debugfs(struct ttm_pool *pool, struct seq_file *m)
{
unsigned int i;
if (!pool->use_dma_alloc) {
seq_puts(m, "unused\n");
return 0;
}
ttm_pool_debugfs_header(m);
spin_lock(&shrinker_lock);