From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux ACPI <linux-acpi@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>, Bob Moore <robert.moore@intel.com>
Subject: [PATCH 18/20] ACPICA: IORT: Updates for revision E.d
Date: Mon, 11 Apr 2022 21:02:33 +0200 [thread overview]
Message-ID: <44610361.fMDQidcC6G@kreacher> (raw)
In-Reply-To: <5578328.DvuYhMxLoT@kreacher>
From: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
ACPICA commit 87a2e39b8abdfedfb86b0a105708e37e895becd9
IORT revision is now updated to E.d (ARM DEN 0049E.d) and
contains a few additions like,
-Added descriptor in the root complex node for specifying
PASID width supported by the root complex.
-Updated RMR node Flags field.
-Introduced memory access attributes in the RMR node.
Please note that IORT Rev E.c is deprecated and not supported.
Link: https://github.com/acpica/acpica/commit/87a2e39b
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/actbl2.h | 27 +++++++++++++++++++++++++--
1 file changed, 25 insertions(+), 2 deletions(-)
Index: linux-pm/include/acpi/actbl2.h
===================================================================
--- linux-pm.orig/include/acpi/actbl2.h
+++ linux-pm/include/acpi/actbl2.h
@@ -357,7 +357,7 @@ struct acpi_table_bdat {
* IORT - IO Remapping Table
*
* Conforms to "IO Remapping Table System Software on ARM Platforms",
- * Document number: ARM DEN 0049E.b, Feb 2021
+ * Document number: ARM DEN 0049E.d, Feb 2022
*
******************************************************************************/
@@ -454,7 +454,8 @@ struct acpi_iort_root_complex {
u32 ats_attribute;
u32 pci_segment_number;
u8 memory_address_limit; /* Memory address size limit */
- u8 reserved[3]; /* Reserved, must be zero */
+ u16 pasid_capabilities; /* PASID Capabilities */
+ u8 reserved[1]; /* Reserved, must be zero */
};
/* Masks for ats_attribute field above */
@@ -463,6 +464,9 @@ struct acpi_iort_root_complex {
#define ACPI_IORT_PRI_SUPPORTED (1<<1) /* The root complex PRI support */
#define ACPI_IORT_PASID_FWD_SUPPORTED (1<<2) /* The root complex PASID forward support */
+/* Masks for pasid_capabilities field above */
+#define ACPI_IORT_PASID_MAX_WIDTH (0x1F) /* Bits 0-4 */
+
struct acpi_iort_smmu {
u64 base_address; /* SMMU base address */
u64 span; /* Length of memory range */
@@ -538,6 +542,25 @@ struct acpi_iort_rmr {
u32 rmr_offset;
};
+/* Masks for Flags field above */
+#define ACPI_IORT_RMR_REMAP_PERMITTED (1)
+#define ACPI_IORT_RMR_ACCESS_PRIVILEGE (1<<1)
+
+/*
+ * Macro to access the Access Attributes in flags field above:
+ * Access Attributes is encoded in bits 9:2
+ */
+#define ACPI_IORT_RMR_ACCESS_ATTRIBUTES(flags) (((flags) >> 2) & 0xFF)
+
+/* Values for above Access Attributes */
+
+#define ACPI_IORT_RMR_ATTR_DEVICE_NGNRNE 0x00
+#define ACPI_IORT_RMR_ATTR_DEVICE_NGNRE 0x01
+#define ACPI_IORT_RMR_ATTR_DEVICE_NGRE 0x02
+#define ACPI_IORT_RMR_ATTR_DEVICE_GRE 0x03
+#define ACPI_IORT_RMR_ATTR_NORMAL_NC 0x04
+#define ACPI_IORT_RMR_ATTR_NORMAL_IWB_OWB 0x05
+
struct acpi_iort_rmr_desc {
u64 base_address;
u64 length;
next prev parent reply other threads:[~2022-04-11 19:04 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-11 18:46 [PATCH 00/20] ACPICA: ACPICA 20220331 Rafael J. Wysocki
2022-04-11 18:47 ` [PATCH 01/20] ACPICA: Add support for the Windows 11 _OSI string Rafael J. Wysocki
2022-04-11 18:47 ` [PATCH 02/20] ACPICA: Add the subtable CFMWS to the CEDT table Rafael J. Wysocki
2022-04-11 18:48 ` [PATCH 03/20] ACPICA: iASL: NHLT: Treat Terminator as specific_config Rafael J. Wysocki
2022-04-11 18:49 ` [PATCH 04/20] ACPICA: iASL: NHLT: Fix parsing undocumented bytes at the end of Endpoint Descriptor Rafael J. Wysocki
2022-04-11 18:50 ` [PATCH 05/20] ACPICA: iASL: NHLT: Rename linux specific strucures to device_info Rafael J. Wysocki
2022-04-11 18:51 ` [PATCH 06/20] ACPICA: Add new ACPI 6.4 semantics to the Load() operator Rafael J. Wysocki
2022-04-11 18:52 ` [PATCH 07/20] ACPICA: Add new ACPI 6.4 semantics for LoadTable() operator Rafael J. Wysocki
2022-04-11 18:53 ` [PATCH 08/20] ACPICA: Clean up double word in comment Rafael J. Wysocki
2022-04-11 18:54 ` [PATCH 09/20] ACPICA: Update copyright notices to the year 2022 Rafael J. Wysocki
2022-04-11 18:55 ` [PATCH 10/20] ACPICA: Removed some tabs and // comments Rafael J. Wysocki
2022-04-11 18:56 ` [PATCH 11/20] ACPICA: Headers: Replace zero-length array with flexible-array member Rafael J. Wysocki
2022-04-11 18:57 ` [PATCH 12/20] ACPICA: executer/exsystem: Add units to time variable names Rafael J. Wysocki
2022-04-11 18:58 ` [PATCH 13/20] ACPICA: Add support for ARM Performance Monitoring Unit Table Rafael J. Wysocki
2022-04-11 18:59 ` [PATCH 14/20] ACPICA: executer/exsystem: Inform users about ACPI spec violation Rafael J. Wysocki
2022-04-12 2:53 ` kernel test robot
2022-04-12 12:47 ` Rafael J. Wysocki
2022-04-12 12:47 ` Rafael J. Wysocki
2022-04-11 18:59 ` [PATCH 15/20] ACPICA: executer/exsystem: Warn about sleeps greater than 10 ms Rafael J. Wysocki
2022-04-12 5:22 ` kernel test robot
2022-05-21 16:11 ` Rafael J. Wysocki
2022-05-21 23:28 ` Paul Menzel
2022-06-14 13:25 ` Rafael J. Wysocki
2022-04-11 19:00 ` [PATCH 16/20] ACPICA: iASL/MADT: Add OEM-defined subtable Rafael J. Wysocki
2022-04-11 19:01 ` [PATCH 17/20] ACPICA: executer/exsystem: Fix some typo mistakes Rafael J. Wysocki
2022-04-11 19:02 ` Rafael J. Wysocki [this message]
2022-04-11 19:03 ` [PATCH 19/20] ACPICA: exsystem.c: Use ACPI_FORMAT_UINT64 for 64-bit output Rafael J. Wysocki
2022-04-11 19:04 ` [PATCH 20/20] ACPICA: Update version to 20220331 Rafael J. Wysocki
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