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arch/x86/acpi: Add DMAR RMRR helper functions

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Add DMAR RMRR table entry and helper functions, using the existing
DRHD functions as a model. As the DRHD device scope (DS) functions
aren't DRHD-specific, genericize them to be used with RMRR tables as
well. Correct DRHD bar size to match table entry in creator function,
as noted in comments from patchset below.

Adapted from/supersedes https://review.coreboot.org/25445

Change-Id: I912b1d7244ca4dd911bb6629533d453b1b4a06be
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/27269
Reviewed-by: Youness Alaoui <snifikino@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Jay Talbott <JayTalbott@sysproconsulting.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Matt DeVillier
2018-03-29 14:59:57 +02:00
committed by Nico Huber
parent a6b3b4dd8f
commit 7866d497ad
8 changed files with 71 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/northbridge/intel/gm45/acpi.c
View File

@@ -78,24 +78,24 @@ static unsigned long acpi_fill_dmar(unsigned long current)
unsigned long tmp = current;
current += acpi_create_dmar_drhd(current, 0, 0, IOMMU_BASE1);
current += acpi_create_dmar_drhd_ds_pci(current, 0, 0x1b, 0);
current += acpi_create_dmar_ds_pci(current, 0, 0x1b, 0);
acpi_dmar_drhd_fixup(tmp, current);
if (stepping != STEPPING_B2) {
tmp = current;
current += acpi_create_dmar_drhd(current, 0, 0, IOMMU_BASE2);
current += acpi_create_dmar_drhd_ds_pci(current, 0, 0x2, 0);
current += acpi_create_dmar_drhd_ds_pci(current, 0, 0x2, 1);
current += acpi_create_dmar_ds_pci(current, 0, 0x2, 0);
current += acpi_create_dmar_ds_pci(current, 0, 0x2, 1);
acpi_dmar_drhd_fixup(tmp, current);
}
if (me_active) {
tmp = current;
current += acpi_create_dmar_drhd(current, 0, 0, IOMMU_BASE3);
current += acpi_create_dmar_drhd_ds_pci(current, 0, 0x3, 0);
current += acpi_create_dmar_drhd_ds_pci(current, 0, 0x3, 1);
current += acpi_create_dmar_drhd_ds_pci(current, 0, 0x3, 2);
current += acpi_create_dmar_drhd_ds_pci(current, 0, 0x3, 3);
current += acpi_create_dmar_ds_pci(current, 0, 0x3, 0);
current += acpi_create_dmar_ds_pci(current, 0, 0x3, 1);
current += acpi_create_dmar_ds_pci(current, 0, 0x3, 2);
current += acpi_create_dmar_ds_pci(current, 0, 0x3, 3);
acpi_dmar_drhd_fixup(tmp, current);
}