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 + */ + +#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 2d80fa8a0634..262e1a3bbeeb 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -54,6 +54,15 @@ #include #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