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From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: iommu@lists.linux-foundation.org,
	linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org
Cc: fenghua.yu@intel.com,
	Jean-Philippe Brucker <jean-philippe@linaro.org>,
	catalin.marinas@arm.com, robin.murphy@arm.com,
	zhengxiang9@huawei.com, zhangfei.gao@linaro.org, will@kernel.org
Subject: [PATCH RESEND v9 05/13] iommu/io-pgtable-arm: Move some definitions to a header
Date: Mon, 17 Aug 2020 19:15:51 +0200	[thread overview]
Message-ID: <20200817171558.325917-6-jean-philippe@linaro.org> (raw)
In-Reply-To: <20200817171558.325917-1-jean-philippe@linaro.org>

Extract some of the most generic TCR defines, so they can be reused by
the page table sharing code.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
---
 drivers/iommu/io-pgtable-arm.h | 30 ++++++++++++++++++++++++++++++
 drivers/iommu/io-pgtable-arm.c | 27 ++-------------------------
 MAINTAINERS                    |  3 +--
 3 files changed, 33 insertions(+), 27 deletions(-)
 create mode 100644 drivers/iommu/io-pgtable-arm.h

diff --git a/drivers/iommu/io-pgtable-arm.h b/drivers/iommu/io-pgtable-arm.h
new file mode 100644
index 000000000000..ba7cfdf7afa0
--- /dev/null
+++ b/drivers/iommu/io-pgtable-arm.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef IO_PGTABLE_ARM_H_
+#define IO_PGTABLE_ARM_H_
+
+#define ARM_LPAE_TCR_TG0_4K		0
+#define ARM_LPAE_TCR_TG0_64K		1
+#define ARM_LPAE_TCR_TG0_16K		2
+
+#define ARM_LPAE_TCR_TG1_16K		1
+#define ARM_LPAE_TCR_TG1_4K		2
+#define ARM_LPAE_TCR_TG1_64K		3
+
+#define ARM_LPAE_TCR_SH_NS		0
+#define ARM_LPAE_TCR_SH_OS		2
+#define ARM_LPAE_TCR_SH_IS		3
+
+#define ARM_LPAE_TCR_RGN_NC		0
+#define ARM_LPAE_TCR_RGN_WBWA		1
+#define ARM_LPAE_TCR_RGN_WT		2
+#define ARM_LPAE_TCR_RGN_WB		3
+
+#define ARM_LPAE_TCR_PS_32_BIT		0x0ULL
+#define ARM_LPAE_TCR_PS_36_BIT		0x1ULL
+#define ARM_LPAE_TCR_PS_40_BIT		0x2ULL
+#define ARM_LPAE_TCR_PS_42_BIT		0x3ULL
+#define ARM_LPAE_TCR_PS_44_BIT		0x4ULL
+#define ARM_LPAE_TCR_PS_48_BIT		0x5ULL
+#define ARM_LPAE_TCR_PS_52_BIT		0x6ULL
+
+#endif /* IO_PGTABLE_ARM_H_ */
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index dc7bcf858b6d..534810b6be77 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -20,6 +20,8 @@
 
 #include <asm/barrier.h>
 
+#include "io-pgtable-arm.h"
+
 #define ARM_LPAE_MAX_ADDR_BITS		52
 #define ARM_LPAE_S2_MAX_CONCAT_PAGES	16
 #define ARM_LPAE_MAX_LEVELS		4
@@ -100,23 +102,6 @@
 #define ARM_LPAE_PTE_MEMATTR_DEV	(((arm_lpae_iopte)0x1) << 2)
 
 /* Register bits */
-#define ARM_LPAE_TCR_TG0_4K		0
-#define ARM_LPAE_TCR_TG0_64K		1
-#define ARM_LPAE_TCR_TG0_16K		2
-
-#define ARM_LPAE_TCR_TG1_16K		1
-#define ARM_LPAE_TCR_TG1_4K		2
-#define ARM_LPAE_TCR_TG1_64K		3
-
-#define ARM_LPAE_TCR_SH_NS		0
-#define ARM_LPAE_TCR_SH_OS		2
-#define ARM_LPAE_TCR_SH_IS		3
-
-#define ARM_LPAE_TCR_RGN_NC		0
-#define ARM_LPAE_TCR_RGN_WBWA		1
-#define ARM_LPAE_TCR_RGN_WT		2
-#define ARM_LPAE_TCR_RGN_WB		3
-
 #define ARM_LPAE_VTCR_SL0_MASK		0x3
 
 #define ARM_LPAE_TCR_T0SZ_SHIFT		0
@@ -124,14 +109,6 @@
 #define ARM_LPAE_VTCR_PS_SHIFT		16
 #define ARM_LPAE_VTCR_PS_MASK		0x7
 
-#define ARM_LPAE_TCR_PS_32_BIT		0x0ULL
-#define ARM_LPAE_TCR_PS_36_BIT		0x1ULL
-#define ARM_LPAE_TCR_PS_40_BIT		0x2ULL
-#define ARM_LPAE_TCR_PS_42_BIT		0x3ULL
-#define ARM_LPAE_TCR_PS_44_BIT		0x4ULL
-#define ARM_LPAE_TCR_PS_48_BIT		0x5ULL
-#define ARM_LPAE_TCR_PS_52_BIT		0x6ULL
-
 #define ARM_LPAE_MAIR_ATTR_SHIFT(n)	((n) << 3)
 #define ARM_LPAE_MAIR_ATTR_MASK		0xff
 #define ARM_LPAE_MAIR_ATTR_DEVICE	0x04
diff --git a/MAINTAINERS b/MAINTAINERS
index deaafb617361..4470769a9833 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1506,8 +1506,7 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/iommu/arm,smmu*
 F:	drivers/iommu/arm/
-F:	drivers/iommu/io-pgtable-arm-v7s.c
-F:	drivers/iommu/io-pgtable-arm.c
+F:	drivers/iommu/io-pgtable-arm*
 
 ARM SUB-ARCHITECTURES
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-- 
2.28.0

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iommu@lists.linux-foundation.org
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  parent reply	other threads:[~2020-08-17 17:18 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-17 17:15 [PATCH RESEND v9 00/13] iommu: Shared Virtual Addressing for SMMUv3 (PT sharing part) Jean-Philippe Brucker
2020-08-17 17:15 ` [PATCH RESEND v9 01/13] mm: Define pasid in mm Jean-Philippe Brucker
2020-08-17 17:15 ` [PATCH RESEND v9 02/13] iommu/ioasid: Add ioasid references Jean-Philippe Brucker
2020-09-08  9:52   ` Auger Eric
2020-08-17 17:15 ` [PATCH RESEND v9 03/13] iommu/sva: Add PASID helpers Jean-Philippe Brucker
2020-09-08  7:45   ` Auger Eric
2020-09-17 14:36     ` Jean-Philippe Brucker
2020-08-17 17:15 ` [PATCH RESEND v9 04/13] arm64: mm: Pin down ASIDs for sharing mm with devices Jean-Philippe Brucker
2020-08-17 17:15 ` Jean-Philippe Brucker [this message]
2020-08-17 17:15 ` [PATCH RESEND v9 06/13] arm64: cpufeature: Export symbol read_sanitised_ftr_reg() Jean-Philippe Brucker
2020-08-17 17:15 ` [PATCH RESEND v9 07/13] iommu/arm-smmu-v3: Move definitions to a header Jean-Philippe Brucker
2020-09-08  9:16   ` Auger Eric
2020-08-17 17:15 ` [PATCH RESEND v9 08/13] iommu/arm-smmu-v3: Share process page tables Jean-Philippe Brucker
2020-09-08  7:41   ` Auger Eric
2020-09-17 14:37     ` Jean-Philippe Brucker
2020-08-17 17:15 ` [PATCH RESEND v9 09/13] iommu/arm-smmu-v3: Seize private ASID Jean-Philippe Brucker
2020-09-07 16:41   ` Auger Eric
2020-09-17 14:38     ` Jean-Philippe Brucker
2020-08-17 17:15 ` [PATCH RESEND v9 10/13] iommu/arm-smmu-v3: Check for SVA features Jean-Philippe Brucker
2020-09-08  9:38   ` Auger Eric
2020-09-17 14:39     ` Jean-Philippe Brucker
2020-08-17 17:15 ` [PATCH RESEND v9 11/13] iommu/arm-smmu-v3: Add SVA device feature Jean-Philippe Brucker
2020-09-08  9:46   ` Auger Eric
2020-09-17 14:40     ` Jean-Philippe Brucker
2020-08-17 17:15 ` [PATCH RESEND v9 12/13] iommu/arm-smmu-v3: Implement iommu_sva_bind/unbind() Jean-Philippe Brucker
2020-08-17 17:15 ` [PATCH RESEND v9 13/13] iommu/arm-smmu-v3: Hook up ATC invalidation to mm ops Jean-Philippe Brucker
2020-09-04  9:08 ` [PATCH RESEND v9 00/13] iommu: Shared Virtual Addressing for SMMUv3 (PT sharing part) Joerg Roedel
2020-09-17 14:36   ` Jean-Philippe Brucker

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