lkml.org 
[lkml]   [2019]   [May]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v6 2/6] iommu: io-pgtable: fix sanity check for non 48-bit mali iommu
Date
Allwinner H6 SoC has a Mali T720MP2 with a 33-bit iommu which
trig the sanity check during the alloc of the pgtable.

Change the sanity check to allow non 48-bit configuration.

Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
---
drivers/iommu/io-pgtable-arm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 4e21efbc4459..74f2ce802e6f 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -1016,7 +1016,7 @@ arm_mali_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg, void *cookie)
{
struct io_pgtable *iop;

- if (cfg->ias != 48 || cfg->oas > 40)
+ if (cfg->ias > 48 || cfg->oas > 40)
return NULL;

cfg->pgsize_bitmap &= (SZ_4K | SZ_2M | SZ_1G);
--
2.17.1
\
 
 \ /
  Last update: 2019-05-21 18:12    [W:0.131 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site