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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>
This commit is contained in:
John Zhao 2019-04-04 11:03:28 -07:00 committed by Nico Huber
parent 44c6cf67c3
commit 76e70675d9
2 changed files with 47 additions and 0 deletions
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27
src/arch/x86/acpi.c
View File

@ -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;

20
src/arch/x86/include/arch/acpi.h
View File

@ -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);