[PATCH 2/4] iommu: arm-smmu: split out register defines
From: Rob Clark
Date: Thu Aug 03 2017 - 06:48:32 EST
I want to re-use some of these for qcom_iommu, which has (roughly) the
same context-bank registers.
Signed-off-by: Rob Clark <robdclark@xxxxxxxxx>
Tested-by: Archit Taneja <architt@xxxxxxxxxxxxxx>
---
drivers/iommu/arm-smmu-regs.h | 220 ++++++++++++++++++++++++++++++++++++++++++
drivers/iommu/arm-smmu.c | 211 ++--------------------------------------
2 files changed, 229 insertions(+), 202 deletions(-)
create mode 100644 drivers/iommu/arm-smmu-regs.h
diff --git a/drivers/iommu/arm-smmu-regs.h b/drivers/iommu/arm-smmu-regs.h
new file mode 100644
index 000000000000..a1226e4ab5f8
--- /dev/null
+++ b/drivers/iommu/arm-smmu-regs.h
@@ -0,0 +1,220 @@
+/*
+ * IOMMU API for ARM architected SMMU implementations.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) 2013 ARM Limited
+ *
+ * Author: Will Deacon <will.deacon@xxxxxxx>
+ */
+
+#ifndef _ARM_SMMU_REGS_H
+#define _ARM_SMMU_REGS_H
+
+/* Configuration registers */
+#define ARM_SMMU_GR0_sCR0 0x0
+#define sCR0_CLIENTPD (1 << 0)
+#define sCR0_GFRE (1 << 1)
+#define sCR0_GFIE (1 << 2)
+#define sCR0_EXIDENABLE (1 << 3)
+#define sCR0_GCFGFRE (1 << 4)
+#define sCR0_GCFGFIE (1 << 5)
+#define sCR0_USFCFG (1 << 10)
+#define sCR0_VMIDPNE (1 << 11)
+#define sCR0_PTM (1 << 12)
+#define sCR0_FB (1 << 13)
+#define sCR0_VMID16EN (1 << 31)
+#define sCR0_BSU_SHIFT 14
+#define sCR0_BSU_MASK 0x3
+
+/* Auxiliary Configuration register */
+#define ARM_SMMU_GR0_sACR 0x10
+
+/* Identification registers */
+#define ARM_SMMU_GR0_ID0 0x20
+#define ARM_SMMU_GR0_ID1 0x24
+#define ARM_SMMU_GR0_ID2 0x28
+#define ARM_SMMU_GR0_ID3 0x2c
+#define ARM_SMMU_GR0_ID4 0x30
+#define ARM_SMMU_GR0_ID5 0x34
+#define ARM_SMMU_GR0_ID6 0x38
+#define ARM_SMMU_GR0_ID7 0x3c
+#define ARM_SMMU_GR0_sGFSR 0x48
+#define ARM_SMMU_GR0_sGFSYNR0 0x50
+#define ARM_SMMU_GR0_sGFSYNR1 0x54
+#define ARM_SMMU_GR0_sGFSYNR2 0x58
+
+#define ID0_S1TS (1 << 30)
+#define ID0_S2TS (1 << 29)
+#define ID0_NTS (1 << 28)
+#define ID0_SMS (1 << 27)
+#define ID0_ATOSNS (1 << 26)
+#define ID0_PTFS_NO_AARCH32 (1 << 25)
+#define ID0_PTFS_NO_AARCH32S (1 << 24)
+#define ID0_CTTW (1 << 14)
+#define ID0_NUMIRPT_SHIFT 16
+#define ID0_NUMIRPT_MASK 0xff
+#define ID0_NUMSIDB_SHIFT 9
+#define ID0_NUMSIDB_MASK 0xf
+#define ID0_EXIDS (1 << 8)
+#define ID0_NUMSMRG_SHIFT 0
+#define ID0_NUMSMRG_MASK 0xff
+
+#define ID1_PAGESIZE (1 << 31)
+#define ID1_NUMPAGENDXB_SHIFT 28
+#define ID1_NUMPAGENDXB_MASK 7
+#define ID1_NUMS2CB_SHIFT 16
+#define ID1_NUMS2CB_MASK 0xff
+#define ID1_NUMCB_SHIFT 0
+#define ID1_NUMCB_MASK 0xff
+
+#define ID2_OAS_SHIFT 4
+#define ID2_OAS_MASK 0xf
+#define ID2_IAS_SHIFT 0
+#define ID2_IAS_MASK 0xf
+#define ID2_UBS_SHIFT 8
+#define ID2_UBS_MASK 0xf
+#define ID2_PTFS_4K (1 << 12)
+#define ID2_PTFS_16K (1 << 13)
+#define ID2_PTFS_64K (1 << 14)
+#define ID2_VMID16 (1 << 15)
+
+#define ID7_MAJOR_SHIFT 4
+#define ID7_MAJOR_MASK 0xf
+
+/* Global TLB invalidation */
+#define ARM_SMMU_GR0_TLBIVMID 0x64
+#define ARM_SMMU_GR0_TLBIALLNSNH 0x68
+#define ARM_SMMU_GR0_TLBIALLH 0x6c
+#define ARM_SMMU_GR0_sTLBGSYNC 0x70
+#define ARM_SMMU_GR0_sTLBGSTATUS 0x74
+#define sTLBGSTATUS_GSACTIVE (1 << 0)
+
+/* Stream mapping registers */
+#define ARM_SMMU_GR0_SMR(n) (0x800 + ((n) << 2))
+#define SMR_VALID (1 << 31)
+#define SMR_MASK_SHIFT 16
+#define SMR_ID_SHIFT 0
+
+#define ARM_SMMU_GR0_S2CR(n) (0xc00 + ((n) << 2))
+#define S2CR_CBNDX_SHIFT 0
+#define S2CR_CBNDX_MASK 0xff
+#define S2CR_EXIDVALID (1 << 10)
+#define S2CR_TYPE_SHIFT 16
+#define S2CR_TYPE_MASK 0x3
+enum arm_smmu_s2cr_type {
+ S2CR_TYPE_TRANS,
+ S2CR_TYPE_BYPASS,
+ S2CR_TYPE_FAULT,
+};
+
+#define S2CR_PRIVCFG_SHIFT 24
+#define S2CR_PRIVCFG_MASK 0x3
+enum arm_smmu_s2cr_privcfg {
+ S2CR_PRIVCFG_DEFAULT,
+ S2CR_PRIVCFG_DIPAN,
+ S2CR_PRIVCFG_UNPRIV,
+ S2CR_PRIVCFG_PRIV,
+};
+
+/* Context bank attribute registers */
+#define ARM_SMMU_GR1_CBAR(n) (0x0 + ((n) << 2))
+#define CBAR_VMID_SHIFT 0
+#define CBAR_VMID_MASK 0xff
+#define CBAR_S1_BPSHCFG_SHIFT 8
+#define CBAR_S1_BPSHCFG_MASK 3
+#define CBAR_S1_BPSHCFG_NSH 3
+#define CBAR_S1_MEMATTR_SHIFT 12
+#define CBAR_S1_MEMATTR_MASK 0xf
+#define CBAR_S1_MEMATTR_WB 0xf
+#define CBAR_TYPE_SHIFT 16
+#define CBAR_TYPE_MASK 0x3
+#define CBAR_TYPE_S2_TRANS (0 << CBAR_TYPE_SHIFT)
+#define CBAR_TYPE_S1_TRANS_S2_BYPASS (1 << CBAR_TYPE_SHIFT)
+#define CBAR_TYPE_S1_TRANS_S2_FAULT (2 << CBAR_TYPE_SHIFT)
+#define CBAR_TYPE_S1_TRANS_S2_TRANS (3 << CBAR_TYPE_SHIFT)
+#define CBAR_IRPTNDX_SHIFT 24
+#define CBAR_IRPTNDX_MASK 0xff
+
+#define ARM_SMMU_GR1_CBA2R(n) (0x800 + ((n) << 2))
+#define CBA2R_RW64_32BIT (0 << 0)
+#define CBA2R_RW64_64BIT (1 << 0)
+#define CBA2R_VMID_SHIFT 16
+#define CBA2R_VMID_MASK 0xffff
+
+#define ARM_SMMU_CB_SCTLR 0x0
+#define ARM_SMMU_CB_ACTLR 0x4
+#define ARM_SMMU_CB_RESUME 0x8
+#define ARM_SMMU_CB_TTBCR2 0x10
+#define ARM_SMMU_CB_TTBR0 0x20
+#define ARM_SMMU_CB_TTBR1 0x28
+#define ARM_SMMU_CB_TTBCR 0x30
+#define ARM_SMMU_CB_CONTEXTIDR 0x34
+#define ARM_SMMU_CB_S1_MAIR0 0x38
+#define ARM_SMMU_CB_S1_MAIR1 0x3c
+#define ARM_SMMU_CB_PAR 0x50
+#define ARM_SMMU_CB_FSR 0x58
+#define ARM_SMMU_CB_FAR 0x60
+#define ARM_SMMU_CB_FSYNR0 0x68
+#define ARM_SMMU_CB_S1_TLBIVA 0x600
+#define ARM_SMMU_CB_S1_TLBIASID 0x610
+#define ARM_SMMU_CB_S1_TLBIVAL 0x620
+#define ARM_SMMU_CB_S2_TLBIIPAS2 0x630
+#define ARM_SMMU_CB_S2_TLBIIPAS2L 0x638
+#define ARM_SMMU_CB_TLBSYNC 0x7f0
+#define ARM_SMMU_CB_TLBSTATUS 0x7f4
+#define ARM_SMMU_CB_ATS1PR 0x800
+#define ARM_SMMU_CB_ATSR 0x8f0
+
+#define SCTLR_S1_ASIDPNE (1 << 12)
+#define SCTLR_CFCFG (1 << 7)
+#define SCTLR_CFIE (1 << 6)
+#define SCTLR_CFRE (1 << 5)
+#define SCTLR_E (1 << 4)
+#define SCTLR_AFE (1 << 2)
+#define SCTLR_TRE (1 << 1)
+#define SCTLR_M (1 << 0)
+
+#define CB_PAR_F (1 << 0)
+
+#define ATSR_ACTIVE (1 << 0)
+
+#define RESUME_RETRY (0 << 0)
+#define RESUME_TERMINATE (1 << 0)
+
+#define TTBCR2_SEP_SHIFT 15
+#define TTBCR2_SEP_UPSTREAM (0x7 << TTBCR2_SEP_SHIFT)
+#define TTBCR2_AS (1 << 4)
+
+#define TTBRn_ASID_SHIFT 48
+
+#define FSR_MULTI (1 << 31)
+#define FSR_SS (1 << 30)
+#define FSR_UUT (1 << 8)
+#define FSR_ASF (1 << 7)
+#define FSR_TLBLKF (1 << 6)
+#define FSR_TLBMCF (1 << 5)
+#define FSR_EF (1 << 4)
+#define FSR_PF (1 << 3)
+#define FSR_AFF (1 << 2)
+#define FSR_TF (1 << 1)
+
+#define FSR_IGN (FSR_AFF | FSR_ASF | \
+ FSR_TLBMCF | FSR_TLBLKF)
+#define FSR_FAULT (FSR_MULTI | FSR_SS | FSR_UUT | \
+ FSR_EF | FSR_PF | FSR_TF | FSR_IGN)
+
+#define FSYNR0_WNR (1 << 4)
+
+#endif /* _ARM_SMMU_REGS_H */
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index bc89b4d6c043..e5f008596998 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -54,6 +54,15 @@
#include <linux/amba/bus.h>
#include "io-pgtable.h"
+#include "arm-smmu-regs.h"
+
+#define ARM_MMU500_ACTLR_CPRE (1 << 1)
+
+#define ARM_MMU500_ACR_CACHE_LOCK (1 << 26)
+#define ARM_MMU500_ACR_SMTNMB_TLBEN (1 << 8)
+
+#define TLB_LOOP_TIMEOUT 1000000 /* 1s! */
+#define TLB_SPIN_COUNT 10
/* Maximum number of context banks per SMMU */
#define ARM_SMMU_MAX_CBS 128
@@ -83,211 +92,9 @@
#define smmu_write_atomic_lq writel_relaxed
#endif
-/* Configuration registers */
-#define ARM_SMMU_GR0_sCR0 0x0
-#define sCR0_CLIENTPD (1 << 0)
-#define sCR0_GFRE (1 << 1)
-#define sCR0_GFIE (1 << 2)
-#define sCR0_EXIDENABLE (1 << 3)
-#define sCR0_GCFGFRE (1 << 4)
-#define sCR0_GCFGFIE (1 << 5)
-#define sCR0_USFCFG (1 << 10)
-#define sCR0_VMIDPNE (1 << 11)
-#define sCR0_PTM (1 << 12)
-#define sCR0_FB (1 << 13)
-#define sCR0_VMID16EN (1 << 31)
-#define sCR0_BSU_SHIFT 14
-#define sCR0_BSU_MASK 0x3
-
-/* Auxiliary Configuration register */
-#define ARM_SMMU_GR0_sACR 0x10
-
-/* Identification registers */
-#define ARM_SMMU_GR0_ID0 0x20
-#define ARM_SMMU_GR0_ID1 0x24
-#define ARM_SMMU_GR0_ID2 0x28
-#define ARM_SMMU_GR0_ID3 0x2c
-#define ARM_SMMU_GR0_ID4 0x30
-#define ARM_SMMU_GR0_ID5 0x34
-#define ARM_SMMU_GR0_ID6 0x38
-#define ARM_SMMU_GR0_ID7 0x3c
-#define ARM_SMMU_GR0_sGFSR 0x48
-#define ARM_SMMU_GR0_sGFSYNR0 0x50
-#define ARM_SMMU_GR0_sGFSYNR1 0x54
-#define ARM_SMMU_GR0_sGFSYNR2 0x58
-
-#define ID0_S1TS (1 << 30)
-#define ID0_S2TS (1 << 29)
-#define ID0_NTS (1 << 28)
-#define ID0_SMS (1 << 27)
-#define ID0_ATOSNS (1 << 26)
-#define ID0_PTFS_NO_AARCH32 (1 << 25)
-#define ID0_PTFS_NO_AARCH32S (1 << 24)
-#define ID0_CTTW (1 << 14)
-#define ID0_NUMIRPT_SHIFT 16
-#define ID0_NUMIRPT_MASK 0xff
-#define ID0_NUMSIDB_SHIFT 9
-#define ID0_NUMSIDB_MASK 0xf
-#define ID0_EXIDS (1 << 8)
-#define ID0_NUMSMRG_SHIFT 0
-#define ID0_NUMSMRG_MASK 0xff
-
-#define ID1_PAGESIZE (1 << 31)
-#define ID1_NUMPAGENDXB_SHIFT 28
-#define ID1_NUMPAGENDXB_MASK 7
-#define ID1_NUMS2CB_SHIFT 16
-#define ID1_NUMS2CB_MASK 0xff
-#define ID1_NUMCB_SHIFT 0
-#define ID1_NUMCB_MASK 0xff
-
-#define ID2_OAS_SHIFT 4
-#define ID2_OAS_MASK 0xf
-#define ID2_IAS_SHIFT 0
-#define ID2_IAS_MASK 0xf
-#define ID2_UBS_SHIFT 8
-#define ID2_UBS_MASK 0xf
-#define ID2_PTFS_4K (1 << 12)
-#define ID2_PTFS_16K (1 << 13)
-#define ID2_PTFS_64K (1 << 14)
-#define ID2_VMID16 (1 << 15)
-
-#define ID7_MAJOR_SHIFT 4
-#define ID7_MAJOR_MASK 0xf
-
-/* Global TLB invalidation */
-#define ARM_SMMU_GR0_TLBIVMID 0x64
-#define ARM_SMMU_GR0_TLBIALLNSNH 0x68
-#define ARM_SMMU_GR0_TLBIALLH 0x6c
-#define ARM_SMMU_GR0_sTLBGSYNC 0x70
-#define ARM_SMMU_GR0_sTLBGSTATUS 0x74
-#define sTLBGSTATUS_GSACTIVE (1 << 0)
-#define TLB_LOOP_TIMEOUT 1000000 /* 1s! */
-#define TLB_SPIN_COUNT 10
-
-/* Stream mapping registers */
-#define ARM_SMMU_GR0_SMR(n) (0x800 + ((n) << 2))
-#define SMR_VALID (1 << 31)
-#define SMR_MASK_SHIFT 16
-#define SMR_ID_SHIFT 0
-
-#define ARM_SMMU_GR0_S2CR(n) (0xc00 + ((n) << 2))
-#define S2CR_CBNDX_SHIFT 0
-#define S2CR_CBNDX_MASK 0xff
-#define S2CR_EXIDVALID (1 << 10)
-#define S2CR_TYPE_SHIFT 16
-#define S2CR_TYPE_MASK 0x3
-enum arm_smmu_s2cr_type {
- S2CR_TYPE_TRANS,
- S2CR_TYPE_BYPASS,
- S2CR_TYPE_FAULT,
-};
-
-#define S2CR_PRIVCFG_SHIFT 24
-#define S2CR_PRIVCFG_MASK 0x3
-enum arm_smmu_s2cr_privcfg {
- S2CR_PRIVCFG_DEFAULT,
- S2CR_PRIVCFG_DIPAN,
- S2CR_PRIVCFG_UNPRIV,
- S2CR_PRIVCFG_PRIV,
-};
-
-/* Context bank attribute registers */
-#define ARM_SMMU_GR1_CBAR(n) (0x0 + ((n) << 2))
-#define CBAR_VMID_SHIFT 0
-#define CBAR_VMID_MASK 0xff
-#define CBAR_S1_BPSHCFG_SHIFT 8
-#define CBAR_S1_BPSHCFG_MASK 3
-#define CBAR_S1_BPSHCFG_NSH 3
-#define CBAR_S1_MEMATTR_SHIFT 12
-#define CBAR_S1_MEMATTR_MASK 0xf
-#define CBAR_S1_MEMATTR_WB 0xf
-#define CBAR_TYPE_SHIFT 16
-#define CBAR_TYPE_MASK 0x3
-#define CBAR_TYPE_S2_TRANS (0 << CBAR_TYPE_SHIFT)
-#define CBAR_TYPE_S1_TRANS_S2_BYPASS (1 << CBAR_TYPE_SHIFT)
-#define CBAR_TYPE_S1_TRANS_S2_FAULT (2 << CBAR_TYPE_SHIFT)
-#define CBAR_TYPE_S1_TRANS_S2_TRANS (3 << CBAR_TYPE_SHIFT)
-#define CBAR_IRPTNDX_SHIFT 24
-#define CBAR_IRPTNDX_MASK 0xff
-
-#define ARM_SMMU_GR1_CBA2R(n) (0x800 + ((n) << 2))
-#define CBA2R_RW64_32BIT (0 << 0)
-#define CBA2R_RW64_64BIT (1 << 0)
-#define CBA2R_VMID_SHIFT 16
-#define CBA2R_VMID_MASK 0xffff
-
/* Translation context bank */
#define ARM_SMMU_CB(smmu, n) ((smmu)->cb_base + ((n) << (smmu)->pgshift))
-#define ARM_SMMU_CB_SCTLR 0x0
-#define ARM_SMMU_CB_ACTLR 0x4
-#define ARM_SMMU_CB_RESUME 0x8
-#define ARM_SMMU_CB_TTBCR2 0x10
-#define ARM_SMMU_CB_TTBR0 0x20
-#define ARM_SMMU_CB_TTBR1 0x28
-#define ARM_SMMU_CB_TTBCR 0x30
-#define ARM_SMMU_CB_CONTEXTIDR 0x34
-#define ARM_SMMU_CB_S1_MAIR0 0x38
-#define ARM_SMMU_CB_S1_MAIR1 0x3c
-#define ARM_SMMU_CB_PAR 0x50
-#define ARM_SMMU_CB_FSR 0x58
-#define ARM_SMMU_CB_FAR 0x60
-#define ARM_SMMU_CB_FSYNR0 0x68
-#define ARM_SMMU_CB_S1_TLBIVA 0x600
-#define ARM_SMMU_CB_S1_TLBIASID 0x610
-#define ARM_SMMU_CB_S1_TLBIVAL 0x620
-#define ARM_SMMU_CB_S2_TLBIIPAS2 0x630
-#define ARM_SMMU_CB_S2_TLBIIPAS2L 0x638
-#define ARM_SMMU_CB_TLBSYNC 0x7f0
-#define ARM_SMMU_CB_TLBSTATUS 0x7f4
-#define ARM_SMMU_CB_ATS1PR 0x800
-#define ARM_SMMU_CB_ATSR 0x8f0
-
-#define SCTLR_S1_ASIDPNE (1 << 12)
-#define SCTLR_CFCFG (1 << 7)
-#define SCTLR_CFIE (1 << 6)
-#define SCTLR_CFRE (1 << 5)
-#define SCTLR_E (1 << 4)
-#define SCTLR_AFE (1 << 2)
-#define SCTLR_TRE (1 << 1)
-#define SCTLR_M (1 << 0)
-
-#define ARM_MMU500_ACTLR_CPRE (1 << 1)
-
-#define ARM_MMU500_ACR_CACHE_LOCK (1 << 26)
-#define ARM_MMU500_ACR_SMTNMB_TLBEN (1 << 8)
-
-#define CB_PAR_F (1 << 0)
-
-#define ATSR_ACTIVE (1 << 0)
-
-#define RESUME_RETRY (0 << 0)
-#define RESUME_TERMINATE (1 << 0)
-
-#define TTBCR2_SEP_SHIFT 15
-#define TTBCR2_SEP_UPSTREAM (0x7 << TTBCR2_SEP_SHIFT)
-#define TTBCR2_AS (1 << 4)
-
-#define TTBRn_ASID_SHIFT 48
-
-#define FSR_MULTI (1 << 31)
-#define FSR_SS (1 << 30)
-#define FSR_UUT (1 << 8)
-#define FSR_ASF (1 << 7)
-#define FSR_TLBLKF (1 << 6)
-#define FSR_TLBMCF (1 << 5)
-#define FSR_EF (1 << 4)
-#define FSR_PF (1 << 3)
-#define FSR_AFF (1 << 2)
-#define FSR_TF (1 << 1)
-
-#define FSR_IGN (FSR_AFF | FSR_ASF | \
- FSR_TLBMCF | FSR_TLBLKF)
-#define FSR_FAULT (FSR_MULTI | FSR_SS | FSR_UUT | \
- FSR_EF | FSR_PF | FSR_TF | FSR_IGN)
-
-#define FSYNR0_WNR (1 << 4)
-
#define MSI_IOVA_BASE 0x8000000
#define MSI_IOVA_LENGTH 0x100000
--
2.13.0