diff mbox series

[3/7] acpi: madt: update madt revisions to ACPI 6.6 and add RISC-V

Message ID 20250711132635.3042768-4-sunilvl@ventanamicro.com
State Superseded
Headers show
Series Add support for RISC-V | expand

Commit Message

Sunil V L July 11, 2025, 1:26 p.m. UTC 
From: Haibo Xu <haibo1.xu@intel.com>

Add new MADT structures defined for RISC-V in ACPI 6.6.

Co-developed-by: Sunil V L <sunilvl@ventanamicro.com>
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Signed-off-by: Haibo Xu <haibo1.xu@intel.com>
---
 src/acpi/madt/madt.c        | 14 +++++++++-
 src/lib/include/fwts_acpi.h | 55 +++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/src/acpi/madt/madt.c b/src/acpi/madt/madt.c
index 21e614a6..5d597f4e 100644
--- a/src/acpi/madt/madt.c
+++ b/src/acpi/madt/madt.c
@@ -122,7 +122,7 @@ 
 
 #define SUBTABLE_UNDEFINED	0x00
 #define SUBTABLE_VARIABLE	0xff
-#define NUM_SUBTABLE_TYPES	24
+#define NUM_SUBTABLE_TYPES	28
 #define MAX_IO_APIC_ID		256 /* IO APIC ID field is 1 byte */
 
 #define SBBR_ACPI_MAJOR_VERSION 6
@@ -247,6 +247,15 @@  static struct acpi_madt_subtable_lengths spec_info[] = {
 			     16, 16, 12, 82, 24, 24, 16, 20, 16,
 			     15, 23, 21, 13, 19, 17, 15 }
 	},
+	{ /* for ACPI 6.6 */
+		.major_version = 6,
+		.minor_version = 6,
+		.madt_version = 7,
+		.num_types = 28,
+		.lengths = { 8, 12, 10, 8, 6, 12, 16, SUBTABLE_VARIABLE,
+			     16, 16, 12, 82, 24, 24, 16, 20, 16,
+			     15, 23, 21, 13, 19, 17, 15, 36, 16, 36, 36 }
+	},
 	{ /* terminator */
 		.major_version = 0,
 		.minor_version = 0,
@@ -516,6 +525,9 @@  static int madt_arch_revision(fwts_framework *fw)
 	if (fw->target_arch == FWTS_ARCH_ARM64) {
 		minrev = 3;
 		arch = "aarch64";
+	} else if (fw->target_arch == FWTS_ARCH_RISCV64) {
+		minrev = 6;
+		arch = "riscv64";
 	} else {
 		minrev = 1;
 		arch = "intel";
diff --git a/src/lib/include/fwts_acpi.h b/src/lib/include/fwts_acpi.h
index e6702aff..6f3fe445 100644
--- a/src/lib/include/fwts_acpi.h
+++ b/src/lib/include/fwts_acpi.h
@@ -544,6 +544,10 @@  typedef enum {
 	FWTS_MADT_MSI_PIC,
 	FWTS_MADT_BIO_PIC,
 	FWTS_MADT_LPC_PIC,
+	FWTS_MADT_RINTC,
+	FWTS_MADT_IMSIC,
+	FWTS_MADT_APLIC,
+	FWTS_MADT_PLIC,
 	FWTS_MADT_RESERVED, /* does not have defined structure */
 	FWTS_MADT_OEM /* does not have defined structure */
 } fwts_acpi_madt_type;
@@ -713,6 +717,57 @@  typedef struct {
 	uint32_t	flag;
 } __attribute__ ((packed)) fwts_acpi_madt_core_pic;
 
+/* Type 24, FWTS_MADT_RINTC */
+typedef struct {
+	uint8_t version;
+	uint8_t reserved;
+	uint32_t flags;
+	uint64_t hart_id;
+	uint32_t uid;
+	uint32_t ext_intc_id;
+	uint64_t imsic_addr;
+	uint32_t imsic_size;
+} __attribute__ ((packed)) fwts_acpi_madt_rintc;
+
+/* Type 25, FWTS_MADT_IMSIC */
+typedef struct {
+	uint8_t version;
+	uint8_t reserved;
+	uint32_t flags;
+	uint16_t num_ids;
+	uint16_t num_guest_ids;
+	uint8_t guest_index_bits;
+	uint8_t hart_index_bits;
+	uint8_t group_index_bits;
+	uint8_t group_index_shift;
+} __attribute__ ((packed)) fwts_acpi_madt_imsic;
+
+/* Type 26, FWTS_MADT_APLIC */
+typedef struct {
+	uint8_t version;
+	uint8_t id;
+	uint32_t flags;
+	uint8_t hw_id[8];
+	uint16_t num_idcs;
+	uint16_t num_sources;
+	uint32_t gsi_base;
+	uint64_t addr;
+	uint32_t size;
+} __attribute__ ((packed)) fwts_acpi_madt_aplic;
+
+/* Type 27, FWTS_MADT_PLIC */
+typedef struct {
+	uint8_t version;
+	uint8_t id;
+	uint8_t hw_id[8];
+	uint16_t num_irqs;
+	uint16_t max_prio;
+	uint32_t flags;
+	uint32_t size;
+	uint64_t base_addr;
+	uint32_t gsi_base;
+} __attribute__ ((packed)) fwts_acpi_madt_plic;
+
 /*
  * ACPI TCPA (Trusted Computing Platform Alliance Capabilities Table)
  *   http://www.kuro5hin.org/story/2002/10/27/16622/530,