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authorMartin Roth <martin@se-eng.com>2012-04-26 15:54:15 -0600
committerStefan Reinauer <stefan.reinauer@coreboot.org>2012-04-27 01:36:30 +0200
commitaee1869fcf6c5eb1616f8c5c5a446c2b2de693e8 (patch)
tree3b7da20c7fb2bde6989d8f6672c1d2aba1c9e710 /src/arch/x86
parent31109452c2cf1d8ec11db6df30329b101ae808f6 (diff)
Updates to x86/include/arch/acpi.h for use in fadt.c
- Added a union to identify the byte that was reserved in the Generic Address Structure from ACPI 2.0 to ACPI 2.0b as the Access Size byte for ACPI 2.0c to ACPI 5.0 - Added various #defines for use in the FADT - Added a couple of comments for the #endifs Change-Id: I294ddfd89fcb0ad88bb6e52d911f807d84671e82 Signed-off-by: Martin L Roth <martin@se-eng.com> Reviewed-on: http://review.coreboot.org/930 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/arch/x86')
-rw-r--r--src/arch/x86/include/arch/acpi.h35
1 files changed, 29 insertions, 6 deletions
diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index 60e400da78..d46cbc2bca 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -55,7 +55,10 @@ typedef struct acpi_gen_regaddr {
u8 space_id; /* Address space ID */
u8 bit_width; /* Register size in bits */
u8 bit_offset; /* Register bit offset */
- u8 resv; /* FIXME: Access size in ACPI 2.0/3.0/4.0 */
+ union {
+ u8 resv; /* Reserved in ACPI 2.0 - 2.0b */
+ u8 access_size; /* Access size in ACPI 2.0c/3.0/4.0/5.0 */
+ };
u32 addrl; /* Register address, low 32 bits */
u32 addrh; /* Register address, high 32 bits */
} __attribute__ ((packed)) acpi_addr_t;
@@ -65,10 +68,18 @@ typedef struct acpi_gen_regaddr {
#define ACPI_ADDRESS_SPACE_PCI 2 /* PCI config space */
#define ACPI_ADDRESS_SPACE_EC 3 /* Embedded controller */
#define ACPI_ADDRESS_SPACE_SMBUS 4 /* SMBus */
+#define ACPI_ADDRESS_SPACE_PCC 0x0A /* Platform Comm. Channel */
#define ACPI_ADDRESS_SPACE_FIXED 0x7f /* Functional fixed hardware */
/* 0x80-0xbf: Reserved */
/* 0xc0-0xff: OEM defined */
+/* Access size definitions for Generic address structure */
+#define ACPI_ACCESS_SIZE_UNDEFINED 0 /* Undefined (legacy reasons) */
+#define ACPI_ACCESS_SIZE_BYTE_ACCESS 1
+#define ACPI_ACCESS_SIZE_WORD_ACCESS 2
+#define ACPI_ACCESS_SIZE_DWORD_ACCESS 3
+#define ACPI_ACCESS_SIZE_QWORD_ACCESS 4
+
/* Generic ACPI header, provided by (almost) all tables */
typedef struct acpi_table_header {
char signature[4]; /* ACPI signature (4 ASCII characters) */
@@ -286,6 +297,13 @@ typedef struct acpi_fadt {
struct acpi_gen_regaddr x_gpe1_blk;
} __attribute__ ((packed)) acpi_fadt_t;
+/* FADT TABLE Revision values */
+#define ACPI_FADT_REV_ACPI_1_0 1
+#define ACPI_FADT_REV_ACPI_2_0 3
+#define ACPI_FADT_REV_ACPI_3_0 4
+#define ACPI_FADT_REV_ACPI_4_0 4
+#define ACPI_FADT_REV_ACPI_5_0 5
+
/* FADT Feature Flags */
#define ACPI_FADT_WBINVD (1 << 0)
#define ACPI_FADT_WBINVD_FLUSH (1 << 1)
@@ -307,7 +325,10 @@ typedef struct acpi_fadt {
#define ACPI_FADT_REMOTE_POWER_ON (1 << 17)
#define ACPI_FADT_APIC_CLUSTER (1 << 18)
#define ACPI_FADT_APIC_PHYSICAL (1 << 19)
-/* Bits 20-31: reserved */
+/* Bits 20-31: reserved ACPI 3.0 & 4.0 */
+#define ACPI_FADT_HW_REDUCED_ACPI (1 << 20)
+#define ACPI_FADT_LOW_PWR_IDLE_S0 (1 << 21)
+/* bits 22-31: reserved ACPI 5.0 */
/* FADT Boot Architecture Flags */
#define ACPI_FADT_LEGACY_DEVICES (1 << 0)
@@ -315,6 +336,7 @@ typedef struct acpi_fadt {
#define ACPI_FADT_VGA_NOT_PRESENT (1 << 2)
#define ACPI_FADT_MSI_NOT_SUPPORTED (1 << 3)
#define ACPI_FADT_NO_PCIE_ASPM_CONTROL (1 << 4)
+#define ACPI_FADT_LEGACY_FREE 0; /* No legacy devices (including 8042) */
/* FADT Preferred Power Management Profile */
enum acpi_preferred_pm_profiles {
@@ -326,6 +348,7 @@ enum acpi_preferred_pm_profiles {
PM_SOHO_SERVER = 5,
PM_APPLIANCE_PC = 6,
PM_PERFORMANCE_SERVER = 7,
+ PM_TABLET = 8, /* ACPI 5.0 */
};
/* FACS (Firmware ACPI Control Structure) */
@@ -458,9 +481,9 @@ void *acpi_get_wakeup_rsdp(void);
void acpi_jump_to_wakeup(void *wakeup_addr);
int acpi_get_sleep_type(void);
-#else
+#else /* CONFIG_HAVE_ACPI_RESUME */
#define acpi_slp_type 0
-#endif
+#endif /* CONFIG_HAVE_ACPI_RESUME */
/* northbridge/amd/amdfam10/amdfam10_acpi.c */
unsigned long acpi_add_ssdt_pstates(acpi_rsdp_t *rsdp, unsigned long current);
@@ -473,6 +496,6 @@ void generate_cpu_entries(void);
#define write_acpi_tables(start) (start)
#define acpi_slp_type 0
-#endif
+#endif /* CONFIG_GENERATE_ACPI_TABLES */
-#endif
+#endif /* __ASM_ACPI_H */