Commit f987c9e0 authored by Christian König's avatar Christian König
Browse files

drm/ttm: optimize ttm pool shrinker a bit 



Only initialize the DMA coherent pools if they are used.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/414957/
parent 56851768

drivers/gpu/drm/ttm/ttm_pool.c

+16 −7
Original line number Diff line number Diff line
@@ -505,11 +505,13 @@ void ttm_pool_init(struct ttm_pool *pool, struct device *dev, 
	pool->use_dma_alloc = use_dma_alloc;

	pool->use_dma32 = use_dma32;



	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);



/**
@@ -524,10 +526,12 @@ void ttm_pool_fini(struct ttm_pool *pool) 
{

	unsigned int i, 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);



/* As long as pages are available make sure to release at least one */
@@ -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);