From: "Jeshua Smith via groups.io" <jeshuas=nvidia.com@groups.io>
To: <devel@edk2.groups.io>
Cc: <Sami.Mujawar@arm.com>, <pierre.gondois@arm.com>,
<quic_llindhol@quicinc.com>, <ardb+tianocore@kernel.org>,
Jeshua Smith <jeshuas@nvidia.com>
Subject: [edk2-devel] [PATCH] DynamicTablesPkg/AmlLib: Enumerate memory cacheability and\r type
Date: Mon, 2 Oct 2023 21:52:52 +0000 [thread overview]
Message-ID: <4e29533888e7dbc72d0815aa4318230636a43588.1696283429.git.jeshuas@nvidia.com> (raw)
AmlCodeGenRdQWordMemory's and AmlCodeGenRdDWordMemory's Cacheable
and MemoryRangeType parameters treat specific values as having
specific meanings. This change adds enums to map those meanings to their
corresponding values.
Signed-off-by: Jeshua Smith <jeshuas@nvidia.com>
---
.../Include/Library/AmlLib/AmlLib.h | 33 +++++++++++++++++++
.../AcpiSsdtPcieLibArm/SsdtPcieGenerator.c | 12 +++----
2 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
index 510c79a399..6a273059fb 100644
--- a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
+++ b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
@@ -59,6 +59,39 @@ typedef void *AML_DATA_NODE_HANDLE;
#endif // AML_HANDLE
+/** Cacheable parameter values
+
+ Possible values are:
+ 0-The memory is non-cacheable
+ 1-The memory is cacheable
+ 2-The memory is cacheable and supports
+ write combining
+ 3-The memory is cacheable and prefetchable
+
+**/
+typedef enum {
+ AML_MEMORY_NONCACHEABLE = 0,
+ AML_MEMORY_CACHEABLE = 1,
+ AML_MEMORY_CACHEABLE_WC = 2,
+ AML_MEMORY_CACHEABLE_PF = 3
+} AML_MEMORY_CACHEABILITY;
+
+/** MemoryRangeType parameter values
+
+ Possible values are:
+ 0-AddressRangeMemory
+ 1-AddressRangeReserved
+ 2-AddressRangeACPI
+ 3-AddressRangeNVS
+
+**/
+typedef enum {
+ AML_MEMORY_RANGE_TYPE_MEMORY = 0,
+ AML_MEMORY_RANGE_TYPE_RESERVED = 1,
+ AML_MEMORY_RANGE_TYPE_ACPI = 2,
+ AML_MEMORY_RANGE_TYPE_NVS = 3
+} AML_MEMORY_RANGE_TYPE;
+
/** Parse the definition block.
The function parses the whole AML blob. It starts with the ACPI DSDT/SSDT
diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c
index 9ddaddc198..7df7117352 100644
--- a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c
+++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c
@@ -566,7 +566,7 @@ GeneratePciCrs (
IsPosDecode,
TRUE,
TRUE,
- TRUE,
+ AML_MEMORY_CACHEABLE,
TRUE,
0,
AddrMapInfo->PciAddress,
@@ -575,7 +575,7 @@ GeneratePciCrs (
AddrMapInfo->AddressSize,
0,
NULL,
- 0,
+ AML_MEMORY_RANGE_TYPE_MEMORY,
TRUE,
CrsNode,
NULL
@@ -588,7 +588,7 @@ GeneratePciCrs (
IsPosDecode,
TRUE,
TRUE,
- TRUE,
+ AML_MEMORY_CACHEABLE,
TRUE,
0,
AddrMapInfo->PciAddress,
@@ -597,7 +597,7 @@ GeneratePciCrs (
AddrMapInfo->AddressSize,
0,
NULL,
- 0,
+ AML_MEMORY_RANGE_TYPE_MEMORY,
TRUE,
CrsNode,
NULL
@@ -718,7 +718,7 @@ ReserveEcamSpace (
TRUE,
TRUE,
TRUE,
- FALSE, // non-cacheable
+ AML_MEMORY_NONCACHEABLE,
TRUE,
0,
AddressMinimum,
@@ -727,7 +727,7 @@ ReserveEcamSpace (
AddressMaximum - AddressMinimum + 1,
0,
NULL,
- 0,
+ AML_MEMORY_RANGE_TYPE_MEMORY,
TRUE,
CrsNode,
NULL
--
2.25.1
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next reply other threads:[~2023-10-02 21:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-02 21:52 Jeshua Smith via groups.io [this message]
2023-10-03 7:03 ` [edk2-devel] [PATCH] DynamicTablesPkg/AmlLib: Enumerate memory cacheability and type PierreGondois
2023-10-03 15:22 ` Leif Lindholm
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