summaryrefslogtreecommitdiffstats
path: root/plat/brcm/board/stingray/src/iommu.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--plat/brcm/board/stingray/src/iommu.c536
1 files changed, 536 insertions, 0 deletions
diff --git a/plat/brcm/board/stingray/src/iommu.c b/plat/brcm/board/stingray/src/iommu.c
new file mode 100644
index 0000000..de8b995
--- /dev/null
+++ b/plat/brcm/board/stingray/src/iommu.c
@@ -0,0 +1,536 @@
+/*
+ * Copyright (c) 2017 - 2020, Broadcom
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <lib/mmio.h>
+
+#include <iommu.h>
+#include <platform_def.h>
+
+#define SMMU_BASE 0x64000000
+#define ARM_SMMU_MAX_NUM_CNTXT_BANK 64
+#define SMMU_CTX_BANK_IDX_SECURE_CRMU 63
+#define ARM_SMMU_NUM_SECURE_MASTER 1
+#define ARM_SMMU_NSNUMCBO (ARM_SMMU_MAX_NUM_CNTXT_BANK - \
+ ARM_SMMU_NUM_SECURE_MASTER)
+#define ARM_SMMU_NSNUMSMRGO (ARM_SMMU_MAX_NUM_CNTXT_BANK - \
+ ARM_SMMU_NUM_SECURE_MASTER)
+/* Reserved Banks. */
+#define SMMU_CTX_BANK_IDX (SMMU_CTX_BANK_IDX_SECURE_CRMU - \
+ ARM_SMMU_NUM_SECURE_MASTER)
+#define NUM_OF_SMRS 1
+
+#define STG1_WITH_STG2_BYPASS 1
+#define ARM_LPAE_PGTBL_PHYS_CRMU 0x880000000
+#define ARM_LPAE_PGTBL_PHYS 0x880200000
+#define ARM_LPAE_PGTBL_PTE_CNT 512
+#define ARM_LPAE_PTE_L1_BLOCK_SIZE 0x40000000
+#define ARM_LPAE_PTE_L1_ADDR_MASK 0x0000FFFFC0000000UL
+#define ARM_LPAE_PTE_TABLE 0x2UL
+#define ARM_LPAE_PTE_VALID 0x1UL
+#define ARM_LPAE_PTE_ATTRINDX 2
+#define ARM_LPAE_PTE_NS 5
+#define ARM_LPAE_PTE_AP 6
+#define ARM_LPAE_PTE_AP_EL1_RW 0x0
+#define ARM_LPAE_PTE_AP_EL0_RW 0x1
+#define ARM_LPAE_PTE_SH 8
+#define ARM_LPAE_PTE_SH_NON 0x0
+#define ARM_LPAE_PTE_SH_OUTER 0x2
+#define ARM_LPAE_PTE_SH_INNER 0x3
+#define ARM_LPAE_PTE_AF 10
+#define ARM_SMMU_RES_SIZE 0x80000
+
+#define ARM_LPAE_PTE_NSTABLE 0x8000000000000000UL
+#define ARM_LPAE_PTE_L1_INDEX_SHIFT 30
+#define ARM_LPAE_PTE_L1_INDEX_MASK 0x1ff
+#define ARM_LPAE_PTE_L0_INDEX_SHIFT 39
+#define ARM_LPAE_PTE_L0_INDEX_MASK 0x1ff
+#define ARM_LPAE_PTE_TABLE_MASK ~(0xfffUL)
+/* 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_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
+#define ARM_SMMU_SMMU_SCR1 0x4
+#define SCR1_NSNUMCBO_MASK 0xFF
+#define SCR1_NSNUMCBO_SHIFT 0x0
+#define SCR1_NSNUMSMRGO_MASK 0xFF00
+#define SCR1_NSNUMSMRGO_SHIFT 0x8
+
+/* 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 ID1_PAGESIZE (1U << 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
+
+/* SMMU global address space */
+#define ARM_SMMU_GR0(smmu) ((smmu)->base)
+#define ARM_SMMU_GR1(smmu) ((smmu)->base + (1 << (smmu)->pgshift))
+
+/* Stream mapping registers */
+#define ARM_SMMU_GR0_SMR(n) (0x800 + (n << 2))
+#define SMR_VALID (1U << 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_TYPE_SHIFT 16
+#define S2CR_TYPE_MASK 0x3
+
+#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_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
+
+/* Translation context bank */
+#define ARM_SMMU_CB_BASE(smmu) ((smmu)->base + ((smmu)->size >> 1))
+#define ARM_SMMU_CB(smmu, n) ((n) * (1 << (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_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)
+
+/* ARM LPAE configuration. */
+/**************************************************************/
+/* Register bits */
+#define ARM_32_LPAE_TCR_EAE (1 << 31)
+#define ARM_64_LPAE_S2_TCR_RES1 (1 << 31)
+
+#define ARM_LPAE_TCR_EPD1 (1 << 23)
+
+#define ARM_LPAE_TCR_TG0_4K (0 << 14)
+#define ARM_LPAE_TCR_TG0_64K (1 << 14)
+#define ARM_LPAE_TCR_TG0_16K (2 << 14)
+
+#define ARM_LPAE_TCR_SH0_SHIFT 12
+#define ARM_LPAE_TCR_SH0_MASK 0x3
+#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_ORGN0_SHIFT 10
+#define ARM_LPAE_TCR_IRGN0_SHIFT 8
+#define ARM_LPAE_TCR_RGN_MASK 0x3
+#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_SL0_SHIFT 6
+#define ARM_LPAE_TCR_SL0_MASK 0x3
+
+#define ARM_LPAE_TCR_T0SZ_SHIFT 0
+#define ARM_LPAE_TCR_SZ_MASK 0xf
+
+#define ARM_LPAE_TCR_PS_SHIFT 16
+#define ARM_LPAE_TCR_PS_MASK 0x7
+
+#define ARM_LPAE_TCR_IPS_SHIFT 32
+#define ARM_LPAE_TCR_IPS_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_MAIR_ATTR_SHIFT(n) ((n) << 3)
+#define ARM_LPAE_MAIR_ATTR_MASK 0xff
+#define ARM_LPAE_MAIR_ATTR_DEVICE 0x04
+#define ARM_LPAE_MAIR_ATTR_NC 0x44
+#define ARM_LPAE_MAIR_ATTR_WBRWA 0xff
+#define ARM_LPAE_MAIR_ATTR_IDX_NC 0
+#define ARM_LPAE_MAIR_ATTR_IDX_CACHE 1
+#define ARM_LPAE_MAIR_ATTR_IDX_DEV 2
+
+#define TTBRn_ASID_SHIFT 48
+#define TTBCR2_SEP_SHIFT 15
+#define TTBCR2_SEP_UPSTREAM (0x7 << TTBCR2_SEP_SHIFT)
+#define TTBCR2_AS (1 << 4)
+#define TTBCR_T0SZ(ia_bits) (64 - (ia_bits))
+
+#define S2CR_PRIVCFG_SHIFT 24
+#define S2CR_PRIVCFG_MASK 0x3
+
+/**************************************************************/
+
+uint16_t paxc_stream_ids[] = { 0x2000 };
+
+uint16_t paxc_stream_ids_mask[] = { 0x1fff };
+uint16_t crmu_stream_ids[] = { CRMU_STREAM_ID };
+uint16_t crmu_stream_ids_mask[] = { 0x0 };
+
+enum arm_smmu_s2cr_type {
+ S2CR_TYPE_TRANS,
+ S2CR_TYPE_BYPASS,
+ S2CR_TYPE_FAULT,
+};
+
+enum arm_smmu_s2cr_privcfg {
+ S2CR_PRIVCFG_DEFAULT,
+ S2CR_PRIVCFG_DIPAN,
+ S2CR_PRIVCFG_UNPRIV,
+ S2CR_PRIVCFG_PRIV,
+};
+
+struct arm_smmu_smr {
+ uint16_t mask;
+ uint16_t id;
+ uint32_t valid;
+};
+
+struct arm_smmu_s2cr {
+ int count;
+ enum arm_smmu_s2cr_type type;
+ enum arm_smmu_s2cr_privcfg privcfg;
+ uint8_t cbndx;
+};
+
+struct arm_smmu_cfg {
+ uint8_t cbndx;
+ uint8_t irptndx;
+ uint32_t cbar;
+};
+
+struct arm_smmu_device {
+ uint8_t *base;
+ uint32_t streams;
+ unsigned long size;
+ unsigned long pgshift;
+ unsigned long va_size;
+ unsigned long ipa_size;
+ unsigned long pa_size;
+ struct arm_smmu_smr smr[NUM_OF_SMRS];
+ struct arm_smmu_s2cr s2cr[NUM_OF_SMRS];
+ struct arm_smmu_cfg cfg[NUM_OF_SMRS];
+ uint16_t *stream_ids;
+ uint16_t *stream_ids_mask;
+};
+
+void arm_smmu_enable_secure_client_port(void)
+{
+ uintptr_t smmu_base = SMMU_BASE;
+
+ mmio_clrbits_32(smmu_base, sCR0_CLIENTPD);
+}
+
+void arm_smmu_reserve_secure_cntxt(void)
+{
+ uintptr_t smmu_base = SMMU_BASE;
+
+ mmio_clrsetbits_32(smmu_base + ARM_SMMU_SMMU_SCR1,
+ (SCR1_NSNUMSMRGO_MASK | SCR1_NSNUMCBO_MASK),
+ ((ARM_SMMU_NSNUMCBO << SCR1_NSNUMCBO_SHIFT) |
+ (ARM_SMMU_NSNUMSMRGO << SCR1_NSNUMSMRGO_SHIFT)));
+}
+
+static void arm_smmu_smr_cfg(struct arm_smmu_device *smmu, uint32_t index)
+{
+ uint32_t idx = smmu->cfg[index].cbndx;
+ struct arm_smmu_smr *smr = &smmu->smr[index];
+ uint32_t reg = smr->id << SMR_ID_SHIFT | smr->mask << SMR_MASK_SHIFT;
+
+ if (smr->valid)
+ reg |= SMR_VALID;
+
+ mmio_write_32((uintptr_t) (ARM_SMMU_GR0(smmu) +
+ ARM_SMMU_GR0_SMR(idx)), reg);
+}
+
+static void arm_smmu_s2cr_cfg(struct arm_smmu_device *smmu, uint32_t index)
+{
+ uint32_t idx = smmu->cfg[index].cbndx;
+ struct arm_smmu_s2cr *s2cr = &smmu->s2cr[index];
+
+ uint32_t reg = (s2cr->type & S2CR_TYPE_MASK) << S2CR_TYPE_SHIFT |
+ (s2cr->cbndx & S2CR_CBNDX_MASK) << S2CR_CBNDX_SHIFT |
+ (s2cr->privcfg & S2CR_PRIVCFG_MASK) << S2CR_PRIVCFG_SHIFT;
+
+ mmio_write_32((uintptr_t) (ARM_SMMU_GR0(smmu) +
+ ARM_SMMU_GR0_S2CR(idx)), reg);
+}
+
+static void smmu_set_pgtbl(struct arm_smmu_device *smmu,
+ enum iommu_domain dom,
+ uint64_t *pg_table_base)
+{
+ int i, l0_index, l1_index;
+ uint64_t addr, *pte, *l0_base, *l1_base;
+ uint64_t addr_space_limit;
+
+ if (dom == PCIE_PAXC) {
+ addr_space_limit = 0xffffffffff;
+ } else if (dom == DOMAIN_CRMU) {
+ addr_space_limit = 0xffffffff;
+ } else {
+ ERROR("dom is not supported\n");
+ return;
+ }
+
+ l0_base = pg_table_base;
+ /* clear L0 descriptors. */
+ for (i = 0; i < ARM_LPAE_PGTBL_PTE_CNT; i++)
+ l0_base[i] = 0x0;
+
+ addr = 0x0;
+ while (addr < addr_space_limit) {
+ /* find L0 pte */
+ l0_index = ((addr >> ARM_LPAE_PTE_L0_INDEX_SHIFT) &
+ ARM_LPAE_PTE_L0_INDEX_MASK);
+ l1_base = l0_base + ((l0_index + 1) * ARM_LPAE_PGTBL_PTE_CNT);
+
+ /* setup L0 pte if required */
+ pte = l0_base + l0_index;
+ if (*pte == 0x0) {
+ *pte |= ((uint64_t)l1_base & ARM_LPAE_PTE_TABLE_MASK);
+ if (dom == PCIE_PAXC)
+ *pte |= ARM_LPAE_PTE_NSTABLE;
+ *pte |= ARM_LPAE_PTE_TABLE;
+ *pte |= ARM_LPAE_PTE_VALID;
+ }
+
+ /* find L1 pte */
+ l1_index = ((addr >> ARM_LPAE_PTE_L1_INDEX_SHIFT) &
+ ARM_LPAE_PTE_L1_INDEX_MASK);
+ pte = l1_base + l1_index;
+
+ /* setup L1 pte */
+ *pte = 0x0;
+ *pte |= (addr & ARM_LPAE_PTE_L1_ADDR_MASK);
+ if (addr < 0x80000000) {
+ *pte |= (ARM_LPAE_MAIR_ATTR_IDX_DEV <<
+ ARM_LPAE_PTE_ATTRINDX);
+ if (dom == PCIE_PAXC)
+ *pte |= (1 << ARM_LPAE_PTE_NS);
+ } else {
+ *pte |= (ARM_LPAE_MAIR_ATTR_IDX_CACHE <<
+ ARM_LPAE_PTE_ATTRINDX);
+ *pte |= (1 << ARM_LPAE_PTE_NS);
+ }
+ *pte |= (ARM_LPAE_PTE_AP_EL0_RW << ARM_LPAE_PTE_AP);
+ *pte |= (ARM_LPAE_PTE_SH_INNER << ARM_LPAE_PTE_SH);
+ *pte |= (1 << ARM_LPAE_PTE_AF);
+ *pte |= ARM_LPAE_PTE_VALID;
+
+ addr += ARM_LPAE_PTE_L1_BLOCK_SIZE;
+ }
+}
+
+void arm_smmu_create_identity_map(enum iommu_domain dom)
+{
+ struct arm_smmu_device iommu;
+ struct arm_smmu_device *smmu = &iommu;
+ uint32_t reg, reg2;
+ unsigned long long reg64;
+ uint32_t idx;
+ uint16_t asid;
+ unsigned int context_bank_index;
+ unsigned long long pg_table_base;
+
+ smmu->base = (uint8_t *) SMMU_BASE;
+ reg = mmio_read_32((uintptr_t) (ARM_SMMU_GR0(smmu) + ARM_SMMU_GR0_ID1));
+ smmu->pgshift = (reg & ID1_PAGESIZE) ? 16 : 12;
+ smmu->size = ARM_SMMU_RES_SIZE;
+ smmu->stream_ids = NULL;
+
+ switch (dom) {
+ case PCIE_PAXC:
+ smmu->stream_ids = &paxc_stream_ids[0];
+ smmu->stream_ids_mask = &paxc_stream_ids_mask[0];
+ smmu->streams = ARRAY_SIZE(paxc_stream_ids);
+ context_bank_index = SMMU_CTX_BANK_IDX;
+ pg_table_base = ARM_LPAE_PGTBL_PHYS;
+ break;
+ case DOMAIN_CRMU:
+ smmu->stream_ids = &crmu_stream_ids[0];
+ smmu->stream_ids_mask = &crmu_stream_ids_mask[0];
+ smmu->streams = ARRAY_SIZE(crmu_stream_ids);
+ context_bank_index = SMMU_CTX_BANK_IDX_SECURE_CRMU;
+ pg_table_base = ARM_LPAE_PGTBL_PHYS_CRMU;
+ break;
+ default:
+ ERROR("domain not supported\n");
+ return;
+ }
+
+ if (smmu->streams > NUM_OF_SMRS) {
+ INFO("can not support more than %d sids\n", NUM_OF_SMRS);
+ return;
+ }
+
+ /* set up iommu dev. */
+ for (idx = 0; idx < smmu->streams; idx++) {
+ /* S2CR. */
+ smmu->s2cr[idx].type = S2CR_TYPE_TRANS;
+ smmu->s2cr[idx].privcfg = S2CR_PRIVCFG_DEFAULT;
+ smmu->s2cr[idx].cbndx = context_bank_index;
+ smmu->cfg[idx].cbndx = context_bank_index;
+ smmu->cfg[idx].cbar = STG1_WITH_STG2_BYPASS << CBAR_TYPE_SHIFT;
+ arm_smmu_s2cr_cfg(smmu, idx);
+
+ /* SMR. */
+ smmu->smr[idx].mask = smmu->stream_ids_mask[idx];
+ smmu->smr[idx].id = smmu->stream_ids[idx];
+ smmu->smr[idx].valid = 1;
+ arm_smmu_smr_cfg(smmu, idx);
+
+ /* CBA2R. 64-bit Translation */
+ mmio_write_32((uintptr_t) (ARM_SMMU_GR1(smmu) +
+ ARM_SMMU_GR1_CBA2R(smmu->cfg[idx].cbndx)),
+ 0x1);
+ /* CBAR.*/
+ reg = smmu->cfg[idx].cbar;
+ reg |= (CBAR_S1_BPSHCFG_NSH << CBAR_S1_BPSHCFG_SHIFT) |
+ (CBAR_S1_MEMATTR_WB << CBAR_S1_MEMATTR_SHIFT);
+
+ mmio_write_32((uintptr_t) (ARM_SMMU_GR1(smmu) +
+ ARM_SMMU_GR1_CBAR(smmu->cfg[idx].cbndx)),
+ reg);
+
+ /* TTBCR. */
+ reg64 = (ARM_LPAE_TCR_SH_IS << ARM_LPAE_TCR_SH0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_WBWA << ARM_LPAE_TCR_IRGN0_SHIFT) |
+ (ARM_LPAE_TCR_RGN_WBWA << ARM_LPAE_TCR_ORGN0_SHIFT);
+ reg64 |= ARM_LPAE_TCR_TG0_4K;
+ reg64 |= (ARM_LPAE_TCR_PS_40_BIT << ARM_LPAE_TCR_IPS_SHIFT);
+ /* ias 40 bits.*/
+ reg64 |= TTBCR_T0SZ(40) << ARM_LPAE_TCR_T0SZ_SHIFT;
+ /* Disable speculative walks through TTBR1 */
+ reg64 |= ARM_LPAE_TCR_EPD1;
+ reg = (uint32_t) reg64;
+ reg2 = (uint32_t) (reg64 >> 32);
+ reg2 |= TTBCR2_SEP_UPSTREAM;
+ reg2 |= TTBCR2_AS;
+
+ mmio_write_32((uintptr_t) (ARM_SMMU_CB_BASE(smmu) +
+ ARM_SMMU_CB(smmu, smmu->cfg[idx].cbndx) +
+ ARM_SMMU_CB_TTBCR2), reg2);
+
+ mmio_write_32((uintptr_t) (ARM_SMMU_CB_BASE(smmu) +
+ ARM_SMMU_CB(smmu, smmu->cfg[idx].cbndx) +
+ ARM_SMMU_CB_TTBCR), reg);
+
+ /* TTBR0. */
+ asid = smmu->cfg[idx].cbndx;
+ reg64 = pg_table_base;
+ reg64 |= (unsigned long long) asid << TTBRn_ASID_SHIFT;
+
+ mmio_write_64((uintptr_t) (ARM_SMMU_CB_BASE(smmu) +
+ ARM_SMMU_CB(smmu, smmu->cfg[idx].cbndx) +
+ ARM_SMMU_CB_TTBR0), reg64);
+ /* TTBR1. */
+ reg64 = 0;
+ reg64 |= (unsigned long long) asid << TTBRn_ASID_SHIFT;
+
+ mmio_write_64((uintptr_t) (ARM_SMMU_CB_BASE(smmu) +
+ ARM_SMMU_CB(smmu, smmu->cfg[idx].cbndx) +
+ ARM_SMMU_CB_TTBR1), reg64);
+ /* MAIR. */
+ reg = (ARM_LPAE_MAIR_ATTR_NC
+ << ARM_LPAE_MAIR_ATTR_SHIFT
+ (ARM_LPAE_MAIR_ATTR_IDX_NC)) |
+ (ARM_LPAE_MAIR_ATTR_WBRWA <<
+ ARM_LPAE_MAIR_ATTR_SHIFT
+ (ARM_LPAE_MAIR_ATTR_IDX_CACHE)) |
+ (ARM_LPAE_MAIR_ATTR_DEVICE <<
+ ARM_LPAE_MAIR_ATTR_SHIFT
+ (ARM_LPAE_MAIR_ATTR_IDX_DEV));
+
+ mmio_write_32((uintptr_t) (ARM_SMMU_CB_BASE(smmu) +
+ ARM_SMMU_CB(smmu, smmu->cfg[idx].cbndx) +
+ ARM_SMMU_CB_S1_MAIR0), reg);
+
+ /* MAIR1. */
+ reg = 0;
+ mmio_write_32((uintptr_t) (ARM_SMMU_CB_BASE(smmu) +
+ ARM_SMMU_CB(smmu, smmu->cfg[idx].cbndx) +
+ ARM_SMMU_CB_S1_MAIR1), reg);
+ /* SCTLR. */
+ reg = SCTLR_CFIE | SCTLR_CFRE | SCTLR_AFE | SCTLR_TRE | SCTLR_M;
+ /* stage 1.*/
+ reg |= SCTLR_S1_ASIDPNE;
+ mmio_write_32((uintptr_t) (ARM_SMMU_CB_BASE(smmu) +
+ ARM_SMMU_CB(smmu, smmu->cfg[idx].cbndx) +
+ ARM_SMMU_CB_SCTLR), reg);
+ }
+ smmu_set_pgtbl(smmu, dom, (uint64_t *)pg_table_base);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-12 12:31:45 +0000