korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 16:24:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

iommu/exynos: Make driver independent of the system page size

Browse Source 
PAGE_{SIZE,SHIFT} macros depend on the configured kernel's page size, but
the driver expects values calculated as for 4KB pages. Fix this.

Reported-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220623093629.32178-1-m.szyprowski@samsung.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Marek Szyprowski 2022-06-23 11:36:29 +02:00 committed by Joerg Roedel
parent a111daf0c5
commit 32977242f8
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/iommu/exynos-iommu.c
View File

@ -340,8 +340,7 @@ static void __sysmmu_set_ptbase(struct sysmmu_drvdata *data, phys_addr_t pgd)
if (MMU_MAJ_VER(data->version) < 5)
writel(pgd, data->sfrbase + REG_PT_BASE_ADDR);
else
writel(pgd >> PAGE_SHIFT,
data->sfrbase + REG_V5_PT_BASE_PFN);
writel(pgd / SZ_4K, data->sfrbase + REG_V5_PT_BASE_PFN);
__sysmmu_tlb_invalidate(data);
}
@ -551,7 +550,7 @@ static void sysmmu_tlb_invalidate_entry(struct sysmmu_drvdata *data,
* 64KB page can be one of 16 consecutive sets.
*/
if (MMU_MAJ_VER(data->version) == 2)
num_inv = min_t(unsigned int, size / PAGE_SIZE, 64);
num_inv = min_t(unsigned int, size / SZ_4K, 64);
if (sysmmu_block(data)) {
__sysmmu_tlb_invalidate_entry(data, iova, num_inv);