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drm/etnaviv: mmuv2: use memset32 to init scratch page

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Replace the open-coded scratch page initialization loop with memset32

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
This commit is contained in:
Philipp Zabel 2018-05-15 16:09:15 +02:00 committed by Lucas Stach
parent 9d3cce1e8b
commit 6ae9c84ff2
1 changed files with 4 additions and 5 deletions
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9
drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
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@ -119,8 +119,7 @@ static size_t etnaviv_iommuv2_unmap(struct etnaviv_iommu_domain *domain,
static int etnaviv_iommuv2_init(struct etnaviv_iommuv2_domain *etnaviv_domain)
{
u32 *p;
int ret, i;
int ret;
/* allocate scratch page */
etnaviv_domain->base.bad_page_cpu =
@ -131,9 +130,9 @@ static int etnaviv_iommuv2_init(struct etnaviv_iommuv2_domain *etnaviv_domain)
ret = -ENOMEM;
goto fail_mem;
}
p = etnaviv_domain->base.bad_page_cpu;
for (i = 0; i < SZ_4K / 4; i++)
*p++ = 0xdead55aa;
memset32(etnaviv_domain->base.bad_page_cpu, 0xdead55aa,
SZ_4K / sizeof(u32));
etnaviv_domain->pta_cpu = dma_alloc_wc(etnaviv_domain->base.dev,
SZ_4K, &etnaviv_domain->pta_dma,