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| author | Lucas Stach <l.stach@pengutronix.de> | 2017-09-07 15:36:57 +0200 |
|---|---|---|
| committer | Lucas Stach <l.stach@pengutronix.de> | 2017-10-10 11:35:29 +0200 |
| commit | 1a540490e919bd64a9be35fca5147bbb7b2ac166 (patch) | |
| tree | 25c5e06ceaab195dc8f6f563d6d2c11eeeb1f16e | |
| parent | 87ceb3756030d284c1e8424877a34b5452906549 (diff) | |
| download | linux-stable-1a540490e919bd64a9be35fca5147bbb7b2ac166.tar.gz linux-stable-1a540490e919bd64a9be35fca5147bbb7b2ac166.tar.bz2 linux-stable-1a540490e919bd64a9be35fca5147bbb7b2ac166.zip | |
drm/etnaviv: iommuv1: fold pagetable alloc and free into caller
Those functions are simple enough to fold them into the calling
function. This also fixes a correctness issue, as the alloc/free
functions didn't specifiy the device the memory was allocated for.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-By: Wladimir J. van der Laan <laanwj@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_iommu.c | 31 |
1 files changed, 10 insertions, 21 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu.c b/drivers/gpu/drm/etnaviv/etnaviv_iommu.c index f804c0aaa7a2..522f6822abee 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu.c @@ -50,22 +50,6 @@ static struct etnaviv_iommu_domain *to_etnaviv_domain(struct iommu_domain *domai return container_of(domain, struct etnaviv_iommu_domain, domain); } -static int pgtable_alloc(struct etnaviv_iommu_domain_pgtable *pgtable, - size_t size) -{ - pgtable->pgtable = dma_alloc_coherent(NULL, size, &pgtable->paddr, GFP_KERNEL); - if (!pgtable->pgtable) - return -ENOMEM; - - return 0; -} - -static void pgtable_free(struct etnaviv_iommu_domain_pgtable *pgtable, - size_t size) -{ - dma_free_coherent(NULL, size, pgtable->pgtable, pgtable->paddr); -} - static void pgtable_write(struct etnaviv_iommu_domain_pgtable *pgtable, unsigned long iova, phys_addr_t paddr) { @@ -78,7 +62,7 @@ static void pgtable_write(struct etnaviv_iommu_domain_pgtable *pgtable, static int __etnaviv_iommu_init(struct etnaviv_iommu_domain *etnaviv_domain) { u32 *p; - int ret, i; + int i; etnaviv_domain->bad_page_cpu = dma_alloc_coherent(etnaviv_domain->dev, SZ_4K, @@ -91,12 +75,15 @@ static int __etnaviv_iommu_init(struct etnaviv_iommu_domain *etnaviv_domain) for (i = 0; i < SZ_4K / 4; i++) *p++ = 0xdead55aa; - ret = pgtable_alloc(&etnaviv_domain->pgtable, PT_SIZE); - if (ret < 0) { + etnaviv_domain->pgtable.pgtable = + dma_alloc_coherent(etnaviv_domain->dev, PT_SIZE, + &etnaviv_domain->pgtable.paddr, + GFP_KERNEL); + if (!etnaviv_domain->pgtable.pgtable) { dma_free_coherent(etnaviv_domain->dev, SZ_4K, etnaviv_domain->bad_page_cpu, etnaviv_domain->bad_page_dma); - return ret; + return -ENOMEM; } for (i = 0; i < PT_ENTRIES; i++) @@ -112,7 +99,9 @@ static void etnaviv_domain_free(struct iommu_domain *domain) { struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain); - pgtable_free(&etnaviv_domain->pgtable, PT_SIZE); + dma_free_coherent(etnaviv_domain->dev, PT_SIZE, + etnaviv_domain->pgtable.pgtable, + etnaviv_domain->pgtable.paddr); dma_free_coherent(etnaviv_domain->dev, SZ_4K, etnaviv_domain->bad_page_cpu, |