From: Geetha <[email protected]> When large memory is being unmapped, huge no of tlb invalidation cmds are submitted followed by a SYNC command. This sometimes hits CMD queue full and poll on queue drain is being timedout throwing error message 'CMD_SYNC timeout'.
Although there is no functional issue, error message confuses user. Hence increased poll timeout to 500us Signed-off-by: Geetha <[email protected]> --- drivers/iommu/arm-smmu-v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 591bb96..1dcd154 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -407,7 +407,7 @@ #define PRIQ_1_ADDR_MASK 0xfffffffffffffUL /* High-level queue structures */ -#define ARM_SMMU_POLL_TIMEOUT_US 100 +#define ARM_SMMU_POLL_TIMEOUT_US 500 #define MSI_IOVA_BASE 0x8000000 #define MSI_IOVA_LENGTH 0x100000 -- 1.9.1
