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From: Lu Baolu <baolu.lu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>, Steve Wahl <steve.wahl@hpe.com>,
	Kevin Tian <kevin.tian@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
	Jerry Snitselaar <jsnitsel@redhat.com>,
	Mike Travis <mike.travis@hpe.com>,
	Dimitri Sivanich <sivanich@hpe.com>,
	Russ Anderson <russ.anderson@hpe.com>,
	iommu@lists.linux.dev, iommu@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org, Lu Baolu <baolu.lu@linux.intel.com>
Subject: [PATCH v1 6/6] iommu/vt-d: Make DMAR_UNITS_SUPPORTED default 1024
Date: Sat, 25 Jun 2022 20:52:04 +0800	[thread overview]
Message-ID: <20220625125204.2199437-7-baolu.lu@linux.intel.com> (raw)
In-Reply-To: <20220625125204.2199437-1-baolu.lu@linux.intel.com>

If the available hardware exceeds DMAR_UNITS_SUPPORTED (previously set
to MAX_IO_APICS, or 128), it causes these messages: "DMAR: Failed to
allocate seq_id", "DMAR: Parse DMAR table failure.", and "x2apic: IRQ
remapping doesn't support X2APIC mode x2apic disabled"; and the system
fails to boot properly.

To support up to 64 sockets with 10 DMAR units each (640), make the
value of DMAR_UNITS_SUPPORTED default 1024.

Signed-off-by: Steve Wahl<steve.wahl@hpe.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
 include/linux/dmar.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index cbd714a198a0..d81a51978d01 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -18,11 +18,7 @@
 
 struct acpi_dmar_header;
 
-#ifdef	CONFIG_X86
-# define	DMAR_UNITS_SUPPORTED	MAX_IO_APICS
-#else
-# define	DMAR_UNITS_SUPPORTED	64
-#endif
+#define DMAR_UNITS_SUPPORTED	1024
 
 /* DMAR Flags */
 #define DMAR_INTR_REMAP		0x1
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Lu Baolu <baolu.lu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>, Steve Wahl <steve.wahl@hpe.com>,
	Kevin Tian <kevin.tian@intel.com>
Cc: Dimitri Sivanich <sivanich@hpe.com>,
	Russ Anderson <russ.anderson@hpe.com>,
	Mike Travis <mike.travis@hpe.com>,
	Jerry Snitselaar <jsnitsel@redhat.com>,
	iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	iommu@lists.linux.dev, David Woodhouse <dwmw2@infradead.org>
Subject: [PATCH v1 6/6] iommu/vt-d: Make DMAR_UNITS_SUPPORTED default 1024
Date: Sat, 25 Jun 2022 20:52:04 +0800	[thread overview]
Message-ID: <20220625125204.2199437-7-baolu.lu@linux.intel.com> (raw)
In-Reply-To: <20220625125204.2199437-1-baolu.lu@linux.intel.com>

If the available hardware exceeds DMAR_UNITS_SUPPORTED (previously set
to MAX_IO_APICS, or 128), it causes these messages: "DMAR: Failed to
allocate seq_id", "DMAR: Parse DMAR table failure.", and "x2apic: IRQ
remapping doesn't support X2APIC mode x2apic disabled"; and the system
fails to boot properly.

To support up to 64 sockets with 10 DMAR units each (640), make the
value of DMAR_UNITS_SUPPORTED default 1024.

Signed-off-by: Steve Wahl<steve.wahl@hpe.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
 include/linux/dmar.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index cbd714a198a0..d81a51978d01 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -18,11 +18,7 @@
 
 struct acpi_dmar_header;
 
-#ifdef	CONFIG_X86
-# define	DMAR_UNITS_SUPPORTED	MAX_IO_APICS
-#else
-# define	DMAR_UNITS_SUPPORTED	64
-#endif
+#define DMAR_UNITS_SUPPORTED	1024
 
 /* DMAR Flags */
 #define DMAR_INTR_REMAP		0x1
-- 
2.25.1

_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

  parent reply	other threads:[~2022-06-25 12:56 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-25 12:51 [PATCH v1 0/6] iommu/vt-d: Reset DMAR_UNITS_SUPPORTED Lu Baolu
2022-06-25 12:51 ` Lu Baolu
2022-06-25 12:51 ` [PATCH v1 1/6] iommu/vt-d: Remove unused domain_get_iommu() Lu Baolu
2022-06-25 12:51   ` Lu Baolu
2022-06-30  8:19   ` Tian, Kevin
2022-06-30  8:19     ` Tian, Kevin
2022-06-25 12:52 ` [PATCH v1 2/6] iommu/vt-d: Use IDA interface to manage iommu sequence id Lu Baolu
2022-06-25 12:52   ` Lu Baolu
2022-06-30  8:21   ` Tian, Kevin
2022-06-30  8:21     ` Tian, Kevin
2022-07-01  1:17     ` Lu Baolu
2022-07-01  1:17       ` Lu Baolu
2022-06-25 12:52 ` [PATCH v1 3/6] iommu/vt-d: Refactor iommu information of each domain Lu Baolu
2022-06-25 12:52   ` Lu Baolu
2022-06-30  8:28   ` Tian, Kevin
2022-06-30  8:28     ` Tian, Kevin
2022-07-01  2:35     ` Lu Baolu
2022-07-01  2:35       ` Lu Baolu
2022-06-25 12:52 ` [PATCH v1 4/6] iommu/vt-d: Add VTD_FLAG_IOMMU_PROBED flag Lu Baolu
2022-06-25 12:52   ` Lu Baolu
2022-06-30  8:29   ` Tian, Kevin
2022-06-30  8:29     ` Tian, Kevin
2022-07-01  3:13     ` Baolu Lu
2022-07-01  3:13       ` Baolu Lu
2022-07-01  6:09       ` Tian, Kevin
2022-07-01  6:09         ` Tian, Kevin
2022-06-25 12:52 ` [PATCH v1 5/6] iommu/vt-d: Remove global g_iommus array Lu Baolu
2022-06-25 12:52   ` Lu Baolu
2022-06-30  8:29   ` Tian, Kevin
2022-06-30  8:29     ` Tian, Kevin
2022-06-25 12:52 ` Lu Baolu [this message]
2022-06-25 12:52   ` [PATCH v1 6/6] iommu/vt-d: Make DMAR_UNITS_SUPPORTED default 1024 Lu Baolu
2022-06-30  8:30   ` Tian, Kevin
2022-06-30  8:30     ` Tian, Kevin
2022-06-28 12:39 ` [PATCH v1 0/6] iommu/vt-d: Reset DMAR_UNITS_SUPPORTED Baolu Lu
2022-06-28 12:39   ` Baolu Lu
2022-07-06 18:55 ` Steve Wahl

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