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[v2,06/10] xen/arm: smmuv3: Remove the unused fields for PREFETCH_CONFIG command

Message ID 6e2951d4ec67a48d9e01c4b87289cfe56b00a345.1662123432.git.rahul.singh@arm.com (mailing list archive)
State Superseded
Headers show
Series xen/arm: smmuv3: Merge Linux fixes to Xen | expand

Commit Message

Rahul Singh Sept. 2, 2022, 1:34 p.m. UTC 
From: Zenghui Yu <yuzenghui@huawei.com>

Backport Linux commit e0bb4b735404. This is the clean backport without
any changes.

Per SMMUv3 spec, there is no Size and Addr field in the
PREFETCH_CONFIG command and they're not used by the driver.
Remove them.

We can add them back if we're going to use PREFETCH_ADDR in the
future.

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20210407084448.1838-1-yuzenghui@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Origin: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git e0bb4b735404
Signed-off-by: Rahul Singh <rahul.singh@arm.com>
---
Changes in v2:
 - fix commit msg
---
 xen/drivers/passthrough/arm/smmu-v3.c | 2 --
 xen/drivers/passthrough/arm/smmu-v3.h | 2 --
 2 files changed, 4 deletions(-)
diff mbox series

Patch

diff --git a/xen/drivers/passthrough/arm/smmu-v3.c b/xen/drivers/passthrough/arm/smmu-v3.c
index f5485a8a1c..2b04f73b87 100644
--- a/xen/drivers/passthrough/arm/smmu-v3.c
+++ b/xen/drivers/passthrough/arm/smmu-v3.c
@@ -402,8 +402,6 @@  static int arm_smmu_cmdq_build_cmd(u64 *cmd, struct arm_smmu_cmdq_ent *ent)
 		break;
 	case CMDQ_OP_PREFETCH_CFG:
 		cmd[0] |= FIELD_PREP(CMDQ_PREFETCH_0_SID, ent->prefetch.sid);
-		cmd[1] |= FIELD_PREP(CMDQ_PREFETCH_1_SIZE, ent->prefetch.size);
-		cmd[1] |= ent->prefetch.addr & CMDQ_PREFETCH_1_ADDR_MASK;
 		break;
 	case CMDQ_OP_CFGI_STE:
 		cmd[0] |= FIELD_PREP(CMDQ_CFGI_0_SID, ent->cfgi.sid);
diff --git a/xen/drivers/passthrough/arm/smmu-v3.h b/xen/drivers/passthrough/arm/smmu-v3.h
index 0742bc393f..b381ad3738 100644
--- a/xen/drivers/passthrough/arm/smmu-v3.h
+++ b/xen/drivers/passthrough/arm/smmu-v3.h
@@ -456,8 +456,6 @@  struct arm_smmu_cmdq_ent {
 		#define CMDQ_OP_PREFETCH_CFG	0x1
 		struct {
 			u32			sid;
-			u8			size;
-			u64			addr;
 		} prefetch;
 
 		#define CMDQ_OP_CFGI_STE	0x3