ACPI: Add RHSA and ANDD structures for DMAR table

Remapping Hardware Status Affinity (RHSA) structure is applicable for
platforms supporting non-uniform memory. An ACPI Name-space Device
Declaration (ANDD) structure uniquely represents an ACPI name-space
enumerated device capable of issuing DMA requests in the platform.
Add RHSA and ANDD structures support for DMAR table generation.

BUG=b:130351429
TEST=Image built and booted to kernel

Change-Id: I042925a7c03831061870d9bca03f11bf25aeb3e7
Signed-off-by: John Zhao <john.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32189
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>

2 files changed, 47 insertions, 0 deletions

diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c
index 8a620bb2c1..d1dcd03652 100644
--- a/src/arch/x86/acpi.c
+++ b/src/arch/x86/acpi.c
@@ -569,6 +569,33 @@ unsigned long acpi_create_dmar_atsr(unsigned long current, u8 flags,
 	return atsr->length;
 }
 
+unsigned long acpi_create_dmar_rhsa(unsigned long current, u64 base_addr,
+	u32 proximity_domain)
+{
+	dmar_rhsa_entry_t *rhsa = (dmar_rhsa_entry_t *)current;
+	memset(rhsa, 0, sizeof(*rhsa));
+	rhsa->type = DMAR_RHSA;
+	rhsa->length = sizeof(*rhsa);
+	rhsa->base_address = base_addr;
+	rhsa->proximity_domain = proximity_domain;
+
+	return rhsa->length;
+}
+
+unsigned long acpi_create_dmar_andd(unsigned long current, u8 device_number,
+	const char *device_name)
+{
+	dmar_andd_entry_t *andd = (dmar_andd_entry_t *)current;
+	int andd_len = sizeof(dmar_andd_entry_t) + strlen(device_name) + 1;
+	memset(andd, 0, andd_len);
+	andd->type = DMAR_ANDD;
+	andd->length = andd_len;
+	andd->device_number = device_number;
+	memcpy(&andd->device_name, device_name, strlen(device_name));
+
+	return andd->length;
+}
+
 void acpi_dmar_drhd_fixup(unsigned long base, unsigned long current)
 {
 	dmar_entry_t *drhd = (dmar_entry_t *)base;
diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index f4ed7440c5..1b9438d13c 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -366,6 +366,22 @@ typedef struct dmar_atsr_entry {
 	u16 segment;
 } __packed dmar_atsr_entry_t;
 
+typedef struct dmar_rhsa_entry {
+	u16 type;
+	u16 length;
+	u32 reserved;
+	u64 base_address;
+	u32 proximity_domain;
+} __packed dmar_rhsa_entry_t;
+
+typedef struct dmar_andd_entry {
+	u16 type;
+	u16 length;
+	u8 reserved[3];
+	u8 device_number;
+	u8 device_name[];
+} __packed dmar_andd_entry_t;
+
 /* DMAR (DMA Remapping Reporting Structure) */
 typedef struct acpi_dmar {
 	struct acpi_table_header header;
@@ -850,6 +866,10 @@ unsigned long acpi_create_dmar_rmrr(unsigned long current, u16 segment,
 				    u64 bar, u64 limit);
 unsigned long acpi_create_dmar_atsr(unsigned long current, u8 flags,
 				    u16 segment);
+unsigned long acpi_create_dmar_rhsa(unsigned long current, u64 base_addr,
+				    u32 proximity_domain);
+unsigned long acpi_create_dmar_andd(unsigned long current, u8 device_number,
+				    const char *device_name);
 void acpi_dmar_drhd_fixup(unsigned long base, unsigned long current);
 void acpi_dmar_rmrr_fixup(unsigned long base, unsigned long current);
 void acpi_dmar_atsr_fixup(unsigned long base, unsigned long current);