linux-kernel - [PATCH v9 1/4] iommu/arm-smmu: move TLB timeout and spin count macros

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Message-ID: <20200630235752.8737-2-vdumpa@nvidia.com>
Date:   Tue, 30 Jun 2020 16:57:49 -0700
From:   Krishna Reddy <vdumpa@...dia.com>
To:     <joro@...tes.org>, <will@...nel.org>, <robin.murphy@....com>,
        <robh+dt@...nel.org>, <treding@...dia.com>, <jonathanh@...dia.com>
CC:     <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <iommu@...ts.linux-foundation.org>, <linux-kernel@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, <yhsu@...dia.com>,
        <snikam@...dia.com>, <praithatha@...dia.com>, <talho@...dia.com>,
        <bbiswas@...dia.com>, <mperttunen@...dia.com>,
        <nicolinc@...dia.com>, <bhuntsman@...dia.com>,
        <nicoleotsuka@...il.com>, Krishna Reddy <vdumpa@...dia.com>
Subject: [PATCH v9 1/4] iommu/arm-smmu: move TLB timeout and spin count macros

Move TLB timeout and spin count macros to header file to
allow using the same values from vendor specific implementations.

Signed-off-by: Krishna Reddy <vdumpa@...dia.com>
---
 drivers/iommu/arm-smmu.c | 3 ---
 drivers/iommu/arm-smmu.h | 2 ++
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 243bc4cb2705b..d2054178df357 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -52,9 +52,6 @@
  */
 #define QCOM_DUMMY_VAL -1
 
-#define TLB_LOOP_TIMEOUT		1000000	/* 1s! */
-#define TLB_SPIN_COUNT			10
-
 #define MSI_IOVA_BASE			0x8000000
 #define MSI_IOVA_LENGTH			0x100000
 
diff --git a/drivers/iommu/arm-smmu.h b/drivers/iommu/arm-smmu.h
index d172c024be618..c7d0122a7c6ca 100644
--- a/drivers/iommu/arm-smmu.h
+++ b/drivers/iommu/arm-smmu.h
@@ -236,6 +236,8 @@ enum arm_smmu_cbar_type {
 /* Maximum number of context banks per SMMU */
 #define ARM_SMMU_MAX_CBS		128
 
+#define TLB_LOOP_TIMEOUT		1000000	/* 1s! */
+#define TLB_SPIN_COUNT			10
 
 /* Shared driver definitions */
 enum arm_smmu_arch_version {
-- 
2.26.2