From: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
To: <linux-arm-kernel@lists.infradead.org>,
<linux-acpi@vger.kernel.org>, <iommu@lists.linux-foundation.org>,
<devel@acpica.org>
Cc: <linuxarm@huawei.com>, <lorenzo.pieralisi@arm.com>,
<joro@8bytes.org>, <robin.murphy@arm.com>,
<wanghuiqiang@huawei.com>, <guohanjun@huawei.com>,
<jonathan.cameron@huawei.com>, <steven.price@arm.com>,
<Sami.Mujawar@arm.com>
Subject: [RFC PATCH v2 1/8] ACPICA: IORT: Update for revision E
Date: Thu, 19 Nov 2020 12:11:43 +0000 [thread overview]
Message-ID: <20201119121150.3316-2-shameerali.kolothum.thodi@huawei.com> (raw)
In-Reply-To: <20201119121150.3316-1-shameerali.kolothum.thodi@huawei.com>
IORT revision E contains a few additions like,
-Added an identifier field in the node descriptors to aid table
cross-referencing.
-Introduced the Reserved Memory Range(RMR) node. This is used
to describe memory ranges that are used by endpoints and requires
a unity mapping in SMMU.
-Introduced a flag in the RC node to express support for PRI.
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
---
include/acpi/actbl2.h | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index ec66779cb193..274fce7b5c01 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -68,7 +68,7 @@
* IORT - IO Remapping Table
*
* Conforms to "IO Remapping Table System Software on ARM Platforms",
- * Document number: ARM DEN 0049D, March 2018
+ * Document number: ARM DEN 0049E, June 2020
*
******************************************************************************/
@@ -86,7 +86,8 @@ struct acpi_iort_node {
u8 type;
u16 length;
u8 revision;
- u32 reserved;
+ u16 reserved;
+ u16 identifier;
u32 mapping_count;
u32 mapping_offset;
char node_data[1];
@@ -100,7 +101,8 @@ enum acpi_iort_node_type {
ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02,
ACPI_IORT_NODE_SMMU = 0x03,
ACPI_IORT_NODE_SMMU_V3 = 0x04,
- ACPI_IORT_NODE_PMCG = 0x05
+ ACPI_IORT_NODE_PMCG = 0x05,
+ ACPI_IORT_NODE_RMR = 0x06,
};
struct acpi_iort_id_mapping {
@@ -167,10 +169,10 @@ struct acpi_iort_root_complex {
u8 reserved[3]; /* Reserved, must be zero */
};
-/* Values for ats_attribute field above */
+/* Masks for ats_attribute field above */
-#define ACPI_IORT_ATS_SUPPORTED 0x00000001 /* The root complex supports ATS */
-#define ACPI_IORT_ATS_UNSUPPORTED 0x00000000 /* The root complex doesn't support ATS */
+#define ACPI_IORT_ATS_SUPPORTED (1) /* The root complex supports ATS */
+#define ACPI_IORT_PRI_SUPPORTED (1<<1) /* The root complex supports PRI */
struct acpi_iort_smmu {
u64 base_address; /* SMMU base address */
@@ -241,6 +243,17 @@ struct acpi_iort_pmcg {
u64 page1_base_address;
};
+struct acpi_iort_rmr {
+ u32 rmr_count;
+ u32 rmr_offset;
+};
+
+struct acpi_iort_rmr_desc {
+ u64 base_address;
+ u64 length;
+ u32 reserved;
+};
+
/*******************************************************************************
*
* IVRS - I/O Virtualization Reporting Structure
--
2.17.1
next prev parent reply other threads:[~2020-11-19 12:12 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-19 12:11 [RFC PATCH v2 0/8] ACPI/IORT: Support for IORT RMR node Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum [this message]
2021-03-22 10:36 ` [RFC PATCH v2 1/8] ACPICA: IORT: Update for revision E Shameerali Kolothum Thodi
2021-03-22 21:57 ` Kaneda, Erik
2021-03-23 15:53 ` Lorenzo Pieralisi
2021-03-23 18:51 ` Kaneda, Erik
2021-03-24 9:50 ` Lorenzo Pieralisi
2021-03-25 8:40 ` Jon Nettleton
2021-03-25 15:54 ` Shameerali Kolothum Thodi
2021-04-15 7:27 ` Auger Eric
2020-11-19 12:11 ` [RFC PATCH v2 2/8] ACPI/IORT: Add support for RMR node parsing Shameer Kolothum
2021-04-15 9:39 ` Auger Eric
2021-04-15 10:30 ` Shameerali Kolothum Thodi
2020-11-19 12:11 ` [RFC PATCH v2 3/8] iommu/dma: Introduce generic helper to retrieve RMR info Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 4/8] ACPI/IORT: Add RMR memory regions reservation helper Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 5/8] iommu/arm-smmu-v3: Introduce strtab init helper Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 6/8] iommu/arm-smmu-v3: Add bypass flag to arm_smmu_write_strtab_ent() Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 7/8] iommu/arm-smmu-v3: Get associated RMR info and install bypass STE Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 8/8] iommu/arm-smmu-v3: Reserve any RMR regions associated with a dev Shameer Kolothum
2020-12-10 10:25 ` [RFC PATCH v2 0/8] ACPI/IORT: Support for IORT RMR node Steven Price
2020-12-14 10:55 ` Shameerali Kolothum Thodi
2020-12-14 12:33 ` Robin Murphy
2020-12-14 13:42 ` Steven Price
2020-12-14 14:47 ` Shameerali Kolothum Thodi
2020-12-17 14:47 ` Jon Nettleton
2020-12-17 15:42 ` Shameerali Kolothum Thodi
2020-12-17 15:53 ` Jon Nettleton
2020-12-18 10:53 ` Jon Nettleton
2021-01-04 8:55 ` Shameerali Kolothum Thodi
2021-01-04 10:55 ` Jon Nettleton
2021-04-09 9:50 ` Auger Eric
2021-04-09 10:08 ` Shameerali Kolothum Thodi
2021-04-15 9:48 ` Auger Eric
2021-04-15 10:37 ` Shameerali Kolothum Thodi
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