Hi Rebecca,
Thank you for this patch.
I have a minor suggestion marked inline as [SAMI].
Otherwise this patch looks good to me.
Regards,
Sami Mujawar
[SAMI] Would it be ok if I change the above line toAdd a Memory32Fixed function to generate code for the corresponding Memory32Fixed macro in AML. Signed-off-by: Rebecca Cran <quic_rcran@quicinc.com> Reviewed-by: Pierre Gondois <pierre.gondois@arm.com> --- DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h | 33 ++++++++++++ DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlResourceDataCodeGen.c | 57 ++++++++++++++++++++ 2 files changed, 90 insertions(+) diff --git a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h index af18bf8e4871..80d05f74ee69 100644 --- a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h +++ b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h @@ -592,6 +592,39 @@ AmlCodeGenRdDWordMemory ( OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL ); +/** Code generation for the "Memory32Fixed ()" ASL macro. + + The Resource Data effectively created is a 32-bit Memory Resource + Data. Cf ACPI 6.4: + - s19.6.83 "Memory Resource Descriptor Macro". + - s19.2.8 "Memory32FixedTerm". + + See ACPI 6.4 spec, s19.2.8 for more. + + @param [in] IsReadWrite ReadAndWrite parameter. + @param [in] Address AddressBase parameter. + @param [in] RangeLength Range length. + @param [in] NameOpNode NameOp object node defining a named object. + If provided, append the new resource data + node to the list of resource data elements + of this node. + @param [out] NewMemNode If provided and success, + contain the created node. + + @retval EFI_SUCCESS The function completed successfully. + @retval EFI_INVALID_PARAMETER Invalid parameter. + @retval EFI_OUT_OF_RESOURCES Could not allocate memory. +**/ +EFI_STATUS +EFIAPI +AmlCodeGenRdMemory32Fixed ( + BOOLEAN IsReadWrite, + UINT32 Address, + UINT32 RangeLength, + AML_OBJECT_NODE_HANDLE NameOpNode, + AML_DATA_NODE_HANDLE *NewMemNode + ); + /** Code generation for the "WordBusNumber ()" ASL function. The Resource Data effectively created is a Word Address Space Resource diff --git a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlResourceDataCodeGen.c b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlResourceDataCodeGen.c index 40d8c2b07ae3..fb18c5a77e2f 100644 --- a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlResourceDataCodeGen.c +++ b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlResourceDataCodeGen.c @@ -609,6 +609,63 @@ AmlCodeGenRdDWordMemory ( ); } +/** Code generation for the "Memory32Fixed ()" ASL macro. + + The Resource Data effectively created is a 32-bit Memory Resource + Data. Cf ACPI 6.4: + - s19.6.83 "Memory Resource Descriptor Macro". + - s19.2.8 "Memory32FixedTerm". + + See ACPI 6.4 spec, s19.2.8 for more. + + @param [in] IsReadWrite ReadAndWrite parameter. + @param [in] Addres AddressBase parameter. + @param [in] RangeLength Range length. + @param [in] NameOpNode NameOp object node defining a named object. + If provided, append the new resource data + node to the list of resource data elements + of this node. + @param [out] NewMemNode If provided and success, + contain the created node. + + @retval EFI_SUCCESS The function completed successfully. + @retval EFI_INVALID_PARAMETER Invalid parameter. + @retval EFI_OUT_OF_RESOURCES Could not allocate memory. +**/ +EFI_STATUS +EFIAPI +AmlCodeGenRdMemory32Fixed ( + BOOLEAN IsReadWrite, + UINT32 Address, + UINT32 RangeLength, + AML_OBJECT_NODE_HANDLE NameOpNode, + AML_DATA_NODE_HANDLE *NewMemNode + ) +{ + EFI_STATUS Status; + AML_DATA_NODE *MemNode; + EFI_ACPI_32_BIT_FIXED_MEMORY_RANGE_DESCRIPTOR RangeDesc; + + RangeDesc.Header.Header.Byte = ACPI_32_BIT_FIXED_MEMORY_RANGE_DESCRIPTOR; + RangeDesc.Header.Length = 0x09;
+ RangeDesc.Information = IsReadWrite ? BIT0 : 0; + RangeDesc.BaseAddress = Address; + RangeDesc.Length = RangeLength; + + Status = AmlCreateDataNode ( + EAmlNodeDataTypeResourceData, + (UINT8 *)&RangeDesc, + sizeof (RangeDesc), + &MemNode + ); + if (EFI_ERROR (Status)) { + ASSERT (0); + return Status; + } + + return LinkRdNode (MemNode, NameOpNode, NewMemNode); +} + /** Code generation for the "WordSpace ()" ASL function. The Resource Data effectively created is a Word Address Space Resource