[PATCH 34/40] acpi: Add some tables needed by ARM devices
Simon Glass
sjg at chromium.org
Wed Dec 1 17:03:08 CET 2021
Add some tables needed for ARM devices, including more MADT subtables,
a CSRT descriptor, GTDT and PPTT.
WIP: This needs comments added.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
include/acpi/acpi_table.h | 205 ++++++++++++++++++++++++++++++++++++++
1 file changed, 205 insertions(+)
diff --git a/include/acpi/acpi_table.h b/include/acpi/acpi_table.h
index 80646a44b2b..88750d044a6 100644
--- a/include/acpi/acpi_table.h
+++ b/include/acpi/acpi_table.h
@@ -162,6 +162,9 @@ enum acpi_pm_profile {
#define ACPI_FADT_HW_REDUCED_ACPI BIT(20)
#define ACPI_FADT_LOW_PWR_IDLE_S0 BIT(21)
+/* ARM boot flags */
+#define ACPI_ARM_PSCI_COMPLIANT BIT(0)
+
enum acpi_address_space_type {
ACPI_ADDRESS_SPACE_MEMORY = 0, /* System memory */
ACPI_ADDRESS_SPACE_IO, /* System I/O */
@@ -237,6 +240,9 @@ struct __packed acpi_fadt {
struct acpi_gen_regaddr x_pm_tmr_blk;
struct acpi_gen_regaddr x_gpe0_blk;
struct acpi_gen_regaddr x_gpe1_blk;
+ struct acpi_gen_regaddr sleep_control_reg;
+ struct acpi_gen_regaddr sleep_status_reg;
+ u64 hyp_vendor_id;
};
/* FADT TABLE Revision values - note these do not match the ACPI revision */
@@ -302,6 +308,8 @@ enum acpi_apic_types {
ACPI_APIC_PLATFORM_IRQ_SRC, /* Platform interrupt sources */
ACPI_APIC_LX2APIC, /* Processor local x2APIC */
ACPI_APIC_LX2APIC_NMI, /* Local x2APIC NMI */
+ ACPI_APIC_GICC, /* Generic Interrupt Ctlr CPU i/f */
+ ACPI_APIC_GICD /* Generic Interrupt Ctlr Distributor */
};
/* MADT: Processor Local APIC Structure */
@@ -345,6 +353,57 @@ struct __packed acpi_madt_lapic_nmi {
u8 lint; /* Local APIC LINT# */
};
+/* flags for acpi_madr_gicc flags word */
+enum {
+ ACPI_MADRF_ENABLED = BIT(0),
+ ACPI_MADRF_PERF = BIT(1),
+ ACPI_MADRF_VGIC = BIT(2),
+};
+
+/**
+ * struct __packed acpi_madr_gicc - GIC CPU interface (type 0xb)
+ *
+ * This holds information about the Generic Interrupt Controller (GIC) CPU
+ * interface. See ACPI Spec v6.3 section 5.2.12.14
+ */
+struct __packed acpi_madr_gicc {
+ u8 type;
+ u8 length;
+ u16 reserved;
+ u32 cpu_if_num;
+ u32 processor_id;
+ u32 flags;
+ u32 parking_proto;
+ u32 perf_gsiv;
+ u64 parked_addr;
+ u64 phys_base;
+ u64 gicv;
+ u64 gich;
+ u32 vgic_maint_irq;
+ u64 gicr_base;
+ u64 mpidr;
+ u8 efficiency;
+ u8 reserved2;
+ u16 spi_overflow_irq;
+};
+
+/**
+ * struct __packed acpi_madr_gicc - GIC distributor (type 0xc)
+ *
+ * This holds information about the Generic Interrupt Controller (GIC)
+ * Distributor interface. See ACPI Spec v6.3 section 5.2.12.15
+ */
+struct __packed acpi_madr_gicd {
+ u8 type;
+ u8 length;
+ u16 reserved;
+ u32 gic_id;
+ u64 phys_base;
+ u32 reserved2;
+ u8 gic_version;
+ u8 reserved3[3];
+};
+
/* MCFG (PCI Express MMIO config space BAR description table) */
struct acpi_mcfg {
struct acpi_table_header header;
@@ -371,6 +430,19 @@ struct acpi_csrt {
struct acpi_table_header header;
};
+/**
+ * struct acpi_csrt_group - header for a group within the CSRT
+ *
+ * The CSRT consists of one or more groups and this is the header for each
+ *
+ * See Core System Resources Table (CSRT), March 13, 2017, Microsoft Corporation
+ * for details
+ *
+ * https://uefi.org/sites/default/files/resources/CSRT%20v2.pdf
+ *
+ * @shared_info_length indicates the number of shared-info bytes following this
+ * struct (which may be 0)
+ */
struct acpi_csrt_group {
u32 length;
u32 vendor_id;
@@ -382,6 +454,25 @@ struct acpi_csrt_group {
u32 shared_info_length;
};
+/**
+ * struct acpi_csrt_descriptor - describes the information that follows
+ *
+ * See the spec as above for details
+ */
+struct acpi_csrt_descriptor {
+ u32 length;
+ u16 type;
+ u16 subtype;
+ u32 uid;
+};
+
+/**
+ * struct acpi_csrt_shared_info - shared info for Intel tangier
+ *
+ * This provides the shared info for this particular board. Notes that the CSRT
+ * does not describe the format of data, so this format may not be used by any
+ * other board.
+ */
struct acpi_csrt_shared_info {
u16 major_version;
u16 minor_version;
@@ -559,6 +650,120 @@ struct __packed acpi_spcr {
u32 reserved2;
};
+/**
+ * struct acpi_gtdt - Generic Timer Description Table (GTDT)
+ *
+ * See ACPI Spec v6.3 section 5.2.24 for details
+ */
+struct __packed acpi_gtdt {
+ struct acpi_table_header header;
+ u64 cnt_ctrl_base;
+ u32 reserved0;
+ u32 sec_el1_gsiv;
+ u32 sec_el1_flags;
+ u32 el1_gsiv;
+ u32 el1_flags;
+ u32 virt_el1_gsiv;
+ u32 virt_el1_flags;
+ u32 el2_gsiv;
+ u32 el2_flags;
+ u64 cnt_read_base;
+ u32 plat_timer_count;
+ u32 plat_timer_offset;
+ u32 virt_el2_gsiv;
+ u32 virt_el2_flags;
+};
+
+/**
+ * struct acpi_bgrt - Boot Graphics Resource Table (BGRT)
+ *
+ * Optional table that provides a mechanism to indicate that an image was drawn
+ * on the screen during boot, and some information about the image.
+ *
+ * See ACPI Spec v6.3 section 5.2.22 for details
+ */
+struct __packed acpi_bgrt {
+ struct acpi_table_header header;
+ u16 version;
+ u8 status;
+ u8 image_type;
+ u64 addr;
+ u32 offset_x;
+ u32 offset_y;
+};
+
+/* Types for PPTT */
+#define ACPI_PPTT_TYPE_PROC 0
+#define ACPI_PPTT_TYPE_CACHE 1
+
+/* Flags for PPTT */
+#define ACPI_PPTT_PHYSICAL_PACKAGE BIT(0)
+#define ACPI_PPTT_PROC_ID_VALID BIT(1)
+#define ACPI_PPTT_PROC_IS_THREAD BIT(2)
+#define ACPI_PPTT_NODE_IS_LEAF BIT(3)
+#define ACPI_PPTT_CHILDREN_IDENTICAL BIT(4)
+
+/**
+ * struct acpi_pptt_header - Processor Properties Topology Table (PPTT) header
+ *
+ * Describes the topological structure of processors and their shared resources,
+ * such as caches.
+ *
+ * See ACPI Spec v6.3 section 5.2.29 for details
+ */
+struct __packed acpi_pptt_header {
+ u8 type; /* ACPI_PPTT_TYPE_... */
+ u8 length;
+ u16 reserved;
+};
+
+/**
+ * struct acpi_pptt_proc - a processor as described by PPTT
+ */
+struct __packed acpi_pptt_proc {
+ struct acpi_pptt_header hdr;
+ u32 flags;
+ u32 parent;
+ u32 proc_id;
+ u32 num_resources;
+};
+
+/* Cache flags for acpi_pptt_cache */
+#define ACPI_PPTT_SIZE_VALID BIT(0)
+#define ACPI_PPTT_SETS_VALID BIT(1)
+#define ACPI_PPTT_ASSOC_VALID BIT(2)
+#define ACPI_PPTT_ALLOC_TYPE_VALID BIT(3)
+#define ACPI_PPTT_CACHE_TYPE_VALID BIT(4)
+#define ACPI_PPTT_WRITE_POLICY_VALID BIT(5)
+#define ACPI_PPTT_LINE_SIZE_VALID BIT(6)
+
+#define ACPI_PPTT_ALL_VALID 0x7f
+#define ACPI_PPTT_ALL_BUT_WRITE_POL 0x5f
+
+#define ACPI_PPTT_READ_ALLOC BIT(0)
+#define ACPI_PPTT_WRITE_ALLOC BIT(1)
+#define ACPI_PPTT_CACHE_TYPE_SHIFT 2
+#define ACPI_PPTT_CACHE_TYPE_MASK (3 << ACPI_PPTT_CACHE_TYPE_SHIFT)
+#define ACPI_PPTT_CACHE_TYPE_DATA 0
+#define ACPI_PPTT_CACHE_TYPE_INSTR 1
+#define ACPI_PPTT_CACHE_TYPE_UNIFIED 2
+#define ACPI_PPTT_CACHE_TYPE_DATA 0
+#define ACPI_PPTT_WRITE_THROUGH BIT(4)
+
+/**
+ * struct acpi_pptt_cache - a cache as described by PPTT
+ */
+struct __packed acpi_pptt_cache {
+ struct acpi_pptt_header hdr;
+ u32 flags;
+ u32 next_cache_level;
+ u32 size;
+ u32 sets;
+ u8 assoc;
+ u8 attributes;
+ u16 line_size;
+};
+
/* Tables defined/reserved by ACPI and generated by U-Boot */
enum acpi_tables {
ACPITAB_BERT,
--
2.34.0.rc2.393.gf8c9666880-goog
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