From: Robin Murphy <robin.murphy@arm.com>
To: will@kernel.org
Cc: bjorn.andersson@linaro.org, iommu@lists.linux-foundation.org,
gregory.clement@bootlin.com,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 05/17] iommu/arm-smmu: Convert context bank registers to bitfields
Date: Thu, 15 Aug 2019 19:37:25 +0100 [thread overview]
Message-ID: <30616d132784d6fb5a4f2ebefa3e55f004696332.1565892337.git.robin.murphy@arm.com> (raw)
In-Reply-To: <cover.1565892337.git.robin.murphy@arm.com>
Finish the final part of the job, once again updating some names to
match the current spec.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
drivers/iommu/arm-smmu-regs.h | 86 ++++++++++++++++++-----------------
drivers/iommu/arm-smmu.c | 16 +++----
drivers/iommu/qcom_iommu.c | 13 +++---
3 files changed, 59 insertions(+), 56 deletions(-)
diff --git a/drivers/iommu/arm-smmu-regs.h b/drivers/iommu/arm-smmu-regs.h
index 8522330ee624..a8e288192285 100644
--- a/drivers/iommu/arm-smmu-regs.h
+++ b/drivers/iommu/arm-smmu-regs.h
@@ -129,19 +129,59 @@ enum arm_smmu_cbar_type {
#define CBA2R_VA64 BIT(0)
#define ARM_SMMU_CB_SCTLR 0x0
+#define SCTLR_S1_ASIDPNE BIT(12)
+#define SCTLR_CFCFG BIT(7)
+#define SCTLR_CFIE BIT(6)
+#define SCTLR_CFRE BIT(5)
+#define SCTLR_E BIT(4)
+#define SCTLR_AFE BIT(2)
+#define SCTLR_TRE BIT(1)
+#define SCTLR_M BIT(0)
+
#define ARM_SMMU_CB_ACTLR 0x4
+
#define ARM_SMMU_CB_RESUME 0x8
-#define ARM_SMMU_CB_TTBCR2 0x10
+#define RESUME_TERMINATE BIT(0)
+
+#define ARM_SMMU_CB_TCR2 0x10
+#define TCR2_SEP GENMASK(17, 15)
+#define TCR2_SEP_UPSTREAM 0x7
+#define TCR2_AS BIT(4)
+
#define ARM_SMMU_CB_TTBR0 0x20
#define ARM_SMMU_CB_TTBR1 0x28
-#define ARM_SMMU_CB_TTBCR 0x30
+#define TTBRn_ASID GENMASK_ULL(63, 48)
+
+#define ARM_SMMU_CB_TCR 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 CB_PAR_F BIT(0)
+
#define ARM_SMMU_CB_FSR 0x58
+#define FSR_MULTI BIT(31)
+#define FSR_SS BIT(30)
+#define FSR_UUT BIT(8)
+#define FSR_ASF BIT(7)
+#define FSR_TLBLKF BIT(6)
+#define FSR_TLBMCF BIT(5)
+#define FSR_EF BIT(4)
+#define FSR_PF BIT(3)
+#define FSR_AFF BIT(2)
+#define FSR_TF BIT(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 ARM_SMMU_CB_FAR 0x60
+
#define ARM_SMMU_CB_FSYNR0 0x68
+#define FSYNR0_WNR BIT(4)
+
#define ARM_SMMU_CB_S1_TLBIVA 0x600
#define ARM_SMMU_CB_S1_TLBIASID 0x610
#define ARM_SMMU_CB_S1_TLBIVAL 0x620
@@ -150,46 +190,8 @@ enum arm_smmu_cbar_type {
#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)
+#define ATSR_ACTIVE BIT(0)
#endif /* _ARM_SMMU_REGS_H */
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 293a95b0d682..a877de006d02 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -628,16 +628,16 @@ static void arm_smmu_init_context_bank(struct arm_smmu_domain *smmu_domain,
cb->cfg = cfg;
- /* TTBCR */
+ /* TCR */
if (stage1) {
if (cfg->fmt == ARM_SMMU_CTX_FMT_AARCH32_S) {
cb->tcr[0] = pgtbl_cfg->arm_v7s_cfg.tcr;
} else {
cb->tcr[0] = pgtbl_cfg->arm_lpae_s1_cfg.tcr;
cb->tcr[1] = pgtbl_cfg->arm_lpae_s1_cfg.tcr >> 32;
- cb->tcr[1] |= TTBCR2_SEP_UPSTREAM;
+ cb->tcr[1] |= FIELD_PREP(TCR2_SEP, TCR2_SEP_UPSTREAM);
if (cfg->fmt == ARM_SMMU_CTX_FMT_AARCH64)
- cb->tcr[1] |= TTBCR2_AS;
+ cb->tcr[1] |= TCR2_AS;
}
} else {
cb->tcr[0] = pgtbl_cfg->arm_lpae_s2_cfg.vtcr;
@@ -650,9 +650,9 @@ static void arm_smmu_init_context_bank(struct arm_smmu_domain *smmu_domain,
cb->ttbr[1] = pgtbl_cfg->arm_v7s_cfg.ttbr[1];
} else {
cb->ttbr[0] = pgtbl_cfg->arm_lpae_s1_cfg.ttbr[0];
- cb->ttbr[0] |= (u64)cfg->asid << TTBRn_ASID_SHIFT;
+ cb->ttbr[0] |= FIELD_PREP(TTBRn_ASID, cfg->asid);
cb->ttbr[1] = pgtbl_cfg->arm_lpae_s1_cfg.ttbr[1];
- cb->ttbr[1] |= (u64)cfg->asid << TTBRn_ASID_SHIFT;
+ cb->ttbr[1] |= FIELD_PREP(TTBRn_ASID, cfg->asid);
}
} else {
cb->ttbr[0] = pgtbl_cfg->arm_lpae_s2_cfg.vttbr;
@@ -721,13 +721,13 @@ static void arm_smmu_write_context_bank(struct arm_smmu_device *smmu, int idx)
writel_relaxed(reg, gr1_base + ARM_SMMU_GR1_CBAR(idx));
/*
- * TTBCR
+ * TCR
* We must write this before the TTBRs, since it determines the
* access behaviour of some fields (in particular, ASID[15:8]).
*/
if (stage1 && smmu->version > ARM_SMMU_V1)
- writel_relaxed(cb->tcr[1], cb_base + ARM_SMMU_CB_TTBCR2);
- writel_relaxed(cb->tcr[0], cb_base + ARM_SMMU_CB_TTBCR);
+ writel_relaxed(cb->tcr[1], cb_base + ARM_SMMU_CB_TCR2);
+ writel_relaxed(cb->tcr[0], cb_base + ARM_SMMU_CB_TCR);
/* TTBRs */
if (cfg->fmt == ARM_SMMU_CTX_FMT_AARCH32_S) {
diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c
index bed948c3058a..60a125dd7300 100644
--- a/drivers/iommu/qcom_iommu.c
+++ b/drivers/iommu/qcom_iommu.c
@@ -7,6 +7,7 @@
*/
#include <linux/atomic.h>
+#include <linux/bitfield.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/dma-iommu.h>
@@ -247,16 +248,16 @@ static int qcom_iommu_init_domain(struct iommu_domain *domain,
/* TTBRs */
iommu_writeq(ctx, ARM_SMMU_CB_TTBR0,
pgtbl_cfg.arm_lpae_s1_cfg.ttbr[0] |
- ((u64)ctx->asid << TTBRn_ASID_SHIFT));
+ FIELD_PREP(TTBRn_ASID, ctx->asid));
iommu_writeq(ctx, ARM_SMMU_CB_TTBR1,
pgtbl_cfg.arm_lpae_s1_cfg.ttbr[1] |
- ((u64)ctx->asid << TTBRn_ASID_SHIFT));
+ FIELD_PREP(TTBRn_ASID, ctx->asid));
- /* TTBCR */
- iommu_writel(ctx, ARM_SMMU_CB_TTBCR2,
+ /* TCR */
+ iommu_writel(ctx, ARM_SMMU_CB_TCR2,
(pgtbl_cfg.arm_lpae_s1_cfg.tcr >> 32) |
- TTBCR2_SEP_UPSTREAM);
- iommu_writel(ctx, ARM_SMMU_CB_TTBCR,
+ FIELD_PREP(TCR2_SEP, TCR2_SEP_UPSTREAM));
+ iommu_writel(ctx, ARM_SMMU_CB_TCR,
pgtbl_cfg.arm_lpae_s1_cfg.tcr);
/* MAIRs (stage-1 only) */
--
2.21.0.dirty
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next prev parent reply other threads:[~2019-08-15 18:38 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-15 18:37 [PATCH v2 00/17] Arm SMMU refactoring Robin Murphy
2019-08-15 18:37 ` [PATCH v2 01/17] iommu/arm-smmu: Mask TLBI address correctly Robin Murphy
2019-08-15 18:37 ` [PATCH v2 02/17] iommu/qcom: Mask TLBI addresses correctly Robin Murphy
2019-08-15 18:37 ` [PATCH v2 03/17] iommu/arm-smmu: Convert GR0 registers to bitfields Robin Murphy
2019-08-15 18:37 ` [PATCH v2 04/17] iommu/arm-smmu: Convert GR1 " Robin Murphy
2019-08-15 18:37 ` Robin Murphy [this message]
2019-08-15 18:37 ` [PATCH v2 06/17] iommu/arm-smmu: Rework cb_base handling Robin Murphy
2019-08-15 18:37 ` [PATCH v2 07/17] iommu/arm-smmu: Split arm_smmu_tlb_inv_range_nosync() Robin Murphy
2019-08-15 18:37 ` [PATCH v2 08/17] iommu/arm-smmu: Get rid of weird "atomic" write Robin Murphy
2019-08-15 18:37 ` [PATCH v2 09/17] iommu/arm-smmu: Abstract GR1 accesses Robin Murphy
2019-08-15 18:37 ` [PATCH v2 10/17] iommu/arm-smmu: Abstract context bank accesses Robin Murphy
2019-08-15 18:37 ` [PATCH v2 11/17] iommu/arm-smmu: Abstract GR0 accesses Robin Murphy
2019-08-15 18:37 ` [PATCH v2 12/17] iommu/arm-smmu: Rename arm-smmu-regs.h Robin Murphy
2019-08-15 18:37 ` [PATCH v2 13/17] iommu/arm-smmu: Add implementation infrastructure Robin Murphy
2019-08-15 18:37 ` [PATCH v2 14/17] iommu/arm-smmu: Move Secure access quirk to implementation Robin Murphy
2019-08-15 18:37 ` [PATCH v2 15/17] iommu/arm-smmu: Add configuration implementation hook Robin Murphy
2019-08-15 18:37 ` [PATCH v2 16/17] iommu/arm-smmu: Add reset " Robin Murphy
2019-08-15 18:37 ` [PATCH v2 17/17] iommu/arm-smmu: Add context init " Robin Murphy
2019-08-20 10:15 ` Vivek Gautam
2019-08-20 13:00 ` Robin Murphy
2019-08-19 15:56 ` [PATCH v2 00/17] Arm SMMU refactoring Will Deacon
2019-08-19 18:10 ` Robin Murphy
2019-08-20 7:04 ` Will Deacon
2019-08-20 8:20 ` Vivek Gautam
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