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>

diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index 9febfb7..5cb2608 100644 (file)
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -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);
 }