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From: Joerg Roedel <joerg.roedel@amd.com>
To: <iommu@lists.linux-foundation.org>
Cc: <linux-kernel@vger.kernel.org>, Joerg Roedel <joerg.roedel@amd.com>
Subject: [PATCH 18/27] iommu/amd: Add IRTE invalidation routine
Date: Wed, 11 Jul 2012 15:39:03 +0200	[thread overview]
Message-ID: <1342013952-10174-19-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1342013952-10174-1-git-send-email-joerg.roedel@amd.com>

Add routine to invalidate the IOMMU cache for interupt
translations. Also include the IRTE caches when flushing all
IOMMU caches.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 drivers/iommu/amd_iommu.c       |   27 +++++++++++++++++++++++++++
 drivers/iommu/amd_iommu_types.h |    1 +
 2 files changed, 28 insertions(+)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index b02db09..26ebd28 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -834,6 +834,13 @@ static void build_inv_all(struct iommu_cmd *cmd)
 	CMD_SET_TYPE(cmd, CMD_INV_ALL);
 }
 
+static void build_inv_irt(struct iommu_cmd *cmd, u16 devid)
+{
+	memset(cmd, 0, sizeof(*cmd));
+	cmd->data[0] = devid;
+	CMD_SET_TYPE(cmd, CMD_INV_IRT);
+}
+
 /*
  * Writes the command to the IOMMUs command buffer and informs the
  * hardware about the new command.
@@ -955,12 +962,32 @@ static void iommu_flush_all(struct amd_iommu *iommu)
 	iommu_completion_wait(iommu);
 }
 
+static void iommu_flush_irt(struct amd_iommu *iommu, u16 devid)
+{
+	struct iommu_cmd cmd;
+
+	build_inv_irt(&cmd, devid);
+
+	iommu_queue_command(iommu, &cmd);
+}
+
+static void iommu_flush_irt_all(struct amd_iommu *iommu)
+{
+	u32 devid;
+
+	for (devid = 0; devid <= 0xffff; ++devid)
+		iommu_flush_irt(iommu, devid);
+
+	iommu_completion_wait(iommu);
+}
+
 void iommu_flush_all_caches(struct amd_iommu *iommu)
 {
 	if (iommu_feature(iommu, FEATURE_IA)) {
 		iommu_flush_all(iommu);
 	} else {
 		iommu_flush_dte_all(iommu);
+		iommu_flush_irt_all(iommu);
 		iommu_flush_tlb_all(iommu);
 	}
 }
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index ceaa499..7827bb8 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -152,6 +152,7 @@
 #define CMD_INV_DEV_ENTRY       0x02
 #define CMD_INV_IOMMU_PAGES	0x03
 #define CMD_INV_IOTLB_PAGES	0x04
+#define CMD_INV_IRT		0x05
 #define CMD_COMPLETE_PPR	0x07
 #define CMD_INV_ALL		0x08
 
-- 
1.7.9.5



WARNING: multiple messages have this Message-ID
From: Joerg Roedel <joerg.roedel-5C7GfCeVMHo@public.gmane.org>
To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH 18/27] iommu/amd: Add IRTE invalidation routine
Date: Wed, 11 Jul 2012 15:39:03 +0200	[thread overview]
Message-ID: <1342013952-10174-19-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1342013952-10174-1-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org>

Add routine to invalidate the IOMMU cache for interupt
translations. Also include the IRTE caches when flushing all
IOMMU caches.

Signed-off-by: Joerg Roedel <joerg.roedel-5C7GfCeVMHo@public.gmane.org>
---
 drivers/iommu/amd_iommu.c       |   27 +++++++++++++++++++++++++++
 drivers/iommu/amd_iommu_types.h |    1 +
 2 files changed, 28 insertions(+)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index b02db09..26ebd28 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -834,6 +834,13 @@ static void build_inv_all(struct iommu_cmd *cmd)
 	CMD_SET_TYPE(cmd, CMD_INV_ALL);
 }
 
+static void build_inv_irt(struct iommu_cmd *cmd, u16 devid)
+{
+	memset(cmd, 0, sizeof(*cmd));
+	cmd->data[0] = devid;
+	CMD_SET_TYPE(cmd, CMD_INV_IRT);
+}
+
 /*
  * Writes the command to the IOMMUs command buffer and informs the
  * hardware about the new command.
@@ -955,12 +962,32 @@ static void iommu_flush_all(struct amd_iommu *iommu)
 	iommu_completion_wait(iommu);
 }
 
+static void iommu_flush_irt(struct amd_iommu *iommu, u16 devid)
+{
+	struct iommu_cmd cmd;
+
+	build_inv_irt(&cmd, devid);
+
+	iommu_queue_command(iommu, &cmd);
+}
+
+static void iommu_flush_irt_all(struct amd_iommu *iommu)
+{
+	u32 devid;
+
+	for (devid = 0; devid <= 0xffff; ++devid)
+		iommu_flush_irt(iommu, devid);
+
+	iommu_completion_wait(iommu);
+}
+
 void iommu_flush_all_caches(struct amd_iommu *iommu)
 {
 	if (iommu_feature(iommu, FEATURE_IA)) {
 		iommu_flush_all(iommu);
 	} else {
 		iommu_flush_dte_all(iommu);
+		iommu_flush_irt_all(iommu);
 		iommu_flush_tlb_all(iommu);
 	}
 }
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index ceaa499..7827bb8 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -152,6 +152,7 @@
 #define CMD_INV_DEV_ENTRY       0x02
 #define CMD_INV_IOMMU_PAGES	0x03
 #define CMD_INV_IOTLB_PAGES	0x04
+#define CMD_INV_IRT		0x05
 #define CMD_COMPLETE_PPR	0x07
 #define CMD_INV_ALL		0x08
 
-- 
1.7.9.5

  parent reply	other threads:[~2012-07-11 13:42 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-11 13:38 [PATCH 0/27] AMD IOMMU interrupt remapping support v2 Joerg Roedel
2012-07-11 13:38 ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 01/27] x86/irq: Add data structure to keep AMD specific irq remapping information Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 21:42   ` Yinghai Lu
2012-07-11 21:42     ` Yinghai Lu
2012-07-12 15:40     ` Joerg Roedel
2012-07-12 15:40       ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 02/27] x86/irq: Introduce irq_cfg->remapped Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 03/27] iommu/amd: Fix sparse warnings Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-17 10:44   ` Joerg Roedel
2012-07-17 10:44     ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 04/27] iommu/amd: Use acpi_get_table instead of acpi_table_parse Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 05/27] iommu/amd: Split out PCI related parts of IOMMU initialization Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 06/27] iommu/amd: Move informational prinks out of iommu_enable Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 07/27] iommu/amd: Introduce early_amd_iommu_init routine Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 08/27] iommu/amd: Split enable_iommus() routine Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 09/27] iommu/amd: Move unmap_flush message to amd_iommu_init_dma_ops() Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 10/27] iommu/amd: Introduce amd_iommu_init_dma routine Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 11/27] iommu/amd: Convert iommu initialization to state machine Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 12/27] iommu/amd: Keep track of HPET and IOAPIC device ids Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 13/27] iommu/amd: Add slab-cache for irq remapping tables Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 14/27] iommu/amd: Allocate data structures to keep track of " Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 15/27] iommu/amd: Check if IOAPIC information is correct Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 16/27] iommu/amd: Split device table initialization into irq and dma part Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 17/27] iommu/amd: Make sure IOMMU is not considered to translate itself Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` Joerg Roedel [this message]
2012-07-11 13:39   ` [PATCH 18/27] iommu/amd: Add IRTE invalidation routine Joerg Roedel
2012-07-11 13:39 ` [PATCH 19/27] iommu/amd: Add routines to manage irq remapping tables Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 20/27] iommu/amd: Add IOAPIC remapping routines Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 21/27] iommu/amd: Implement MSI routines for interrupt remapping Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 22/27] iommu/amd: Add call-back routine for HPET MSI Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 23/27] iommu/amd: Add initialization routines for AMD interrupt remapping Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 24/27] iommu/amd: Make sure irq remapping still works on dma init failure Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 25/27] iommu/irq: Use amd_iommu_irq_ops if supported Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 26/27] iommu/amd: Print message to system log when irq remapping is enabled Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 27/27] iommu/amd: Report irq remapping through IOMMU-API Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel

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