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iommu/rockchip: Drop IOVA cookie management 

The core code bakes its own cookies now.

Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/aff51e2da1e431987ae5fdafa62a6a7c4bd042dc.1628682048.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Robin Murphy 2021-08-11 13:21:22 +01:00 committed by Joerg Roedel
parent a88a42be04
commit b811a45151
1 changed files with 1 additions and 11 deletions
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12
drivers/iommu/rockchip-iommu.c
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@ -10,7 +10,6 @@
#include <linux/compiler.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dma-iommu.h>
#include <linux/dma-mapping.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
@ -1074,10 +1073,6 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type)
if (!rk_domain)
return NULL;
if (type == IOMMU_DOMAIN_DMA &&
iommu_get_dma_cookie(&rk_domain->domain))
goto err_free_domain;
/*
* rk32xx iommus use a 2 level pagetable.
* Each level1 (dt) and level2 (pt) table has 1024 4-byte entries.
@ -1085,7 +1080,7 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type)
*/
rk_domain->dt = (u32 *)get_zeroed_page(GFP_KERNEL | GFP_DMA32);
if (!rk_domain->dt)
goto err_put_cookie;
goto err_free_domain;
rk_domain->dt_dma = dma_map_single(dma_dev, rk_domain->dt,
SPAGE_SIZE, DMA_TO_DEVICE);
@ -1106,9 +1101,6 @@ static struct iommu_domain *rk_iommu_domain_alloc(unsigned type)
err_free_dt:
free_page((unsigned long)rk_domain->dt);
err_put_cookie:
if (type == IOMMU_DOMAIN_DMA)
iommu_put_dma_cookie(&rk_domain->domain);
err_free_domain:
kfree(rk_domain);
@ -1137,8 +1129,6 @@ static void rk_iommu_domain_free(struct iommu_domain *domain)
SPAGE_SIZE, DMA_TO_DEVICE);
free_page((unsigned long)rk_domain->dt);
if (domain->type == IOMMU_DOMAIN_DMA)
iommu_put_dma_cookie(&rk_domain->domain);
kfree(rk_domain);
}