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acpi: add SRAT Generic Initiator Affinity structure 

Generic Initiator Affinity structure is introdcued in ACPI spec 6.3.

This structure is used to define NUMA affinity domain which is
established by generic initiator (such as by CXL device).

Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Change-Id: Ic6ef01c59e02f30dc290f27e741027e16f5d8359
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52734
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lance Zhao
This commit is contained in:
Jonathan Zhang 2021-04-21 17:51:31 -07:00 committed by Werner Zeh
parent 2de78e25a3
commit 3164b645ab
2 changed files with 42 additions and 0 deletions
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17
src/acpi/acpi.c
View File

@ -508,6 +508,23 @@ int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek, u32 sizek,
return mem->length; return mem->length;
} }
int acpi_create_srat_gia_pci(acpi_srat_gia_t *gia, u32 proximity_domain,
u16 seg, u8 bus, u8 dev, u8 func, u32 flags)
{
gia->type = ACPI_SRAT_STRUCTURE_GIA;
gia->length = sizeof(acpi_srat_gia_t);
gia->proximity_domain = proximity_domain;
gia->dev_handle_type = ACPI_SRAT_GIA_DEV_HANDLE_PCI;
/* First two bytes has segment number */
memcpy(gia->dev_handle, &seg, 2);
gia->dev_handle[2] = bus; /* Byte 2 has bus number */
/* Byte 3 has bits 7:3 for dev, bits 2:0 for func */
gia->dev_handle[3] = PCI_SLOT(dev) | PCI_FUNC(func);
gia->flags = flags;
return gia->length;
}
/* http://www.microsoft.com/whdc/system/sysinternals/sratdwn.mspx */ /* http://www.microsoft.com/whdc/system/sysinternals/sratdwn.mspx */
void acpi_create_srat(acpi_srat_t *srat, void acpi_create_srat(acpi_srat_t *srat,
unsigned long (*acpi_fill_srat)(unsigned long current)) unsigned long (*acpi_fill_srat)(unsigned long current))

25
src/include/acpi/acpi.h
View File

@ -281,6 +281,10 @@ typedef struct acpi_srat {
/* Followed by static resource allocation structure[n] */ /* Followed by static resource allocation structure[n] */
} __packed acpi_srat_t; } __packed acpi_srat_t;
#define ACPI_SRAT_STRUCTURE_LAPIC 0
#define ACPI_SRAT_STRUCTURE_MEM 1
#define ACPI_SRAT_STRUCTURE_GIA 5
/* SRAT: Processor Local APIC/SAPIC Affinity Structure */ /* SRAT: Processor Local APIC/SAPIC Affinity Structure */
typedef struct acpi_srat_lapic { typedef struct acpi_srat_lapic {
u8 type; /* Type (0) */ u8 type; /* Type (0) */
@ -310,6 +314,21 @@ typedef struct acpi_srat_mem {
u32 resv2[2]; u32 resv2[2];
} __packed acpi_srat_mem_t; } __packed acpi_srat_mem_t;
/* SRAT: Generic Initiator Affinity Structure (ACPI spec 6.4 section 5.2.16.6) */
typedef struct acpi_srat_gia {
u8 type; /* Type (5) */
u8 length; /* Length in bytes (32) */
u8 resv;
u8 dev_handle_type; /* Device handle type */
u32 proximity_domain; /*Proximity domain */
u8 dev_handle[16]; /* Device handle */
u32 flags;
u32 resv1;
} __packed acpi_srat_gia_t;
#define ACPI_SRAT_GIA_DEV_HANDLE_ACPI 0
#define ACPI_SRAT_GIA_DEV_HANDLE_PCI 1
/* SLIT (System Locality Distance Information Table) */ /* SLIT (System Locality Distance Information Table) */
typedef struct acpi_slit { typedef struct acpi_slit {
acpi_header_t header; acpi_header_t header;
@ -1218,6 +1237,12 @@ int acpi_create_madt_lx2apic_nmi(acpi_madt_lx2apic_nmi_t *lapic_nmi, u32 cpu,
int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic); int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic);
int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek, u32 sizek, int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek, u32 sizek,
u32 flags); u32 flags);
/*
* Given the Generic Initiator device's BDF, the proximity domain's ID
* and flag, create Generic Initiator Affinity structure in SRAT.
*/
int acpi_create_srat_gia_pci(acpi_srat_gia_t *gia, u32 proximity_domain,
u16 seg, u8 bus, u8 dev, u8 func, u32 flags);
int acpi_create_mcfg_mmconfig(acpi_mcfg_mmconfig_t *mmconfig, u32 base, int acpi_create_mcfg_mmconfig(acpi_mcfg_mmconfig_t *mmconfig, u32 base,
u16 seg_nr, u8 start, u8 end); u16 seg_nr, u8 start, u8 end);
unsigned long acpi_create_srat_lapics(unsigned long current); unsigned long acpi_create_srat_lapics(unsigned long current);