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-rw-r--r--include/acpi/pcc.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/acpi/pcc.h b/include/acpi/pcc.h
index 73e806fe7c..9b373d172a 100644
--- a/include/acpi/pcc.h
+++ b/include/acpi/pcc.h
@@ -18,7 +18,20 @@ struct pcc_mbox_chan {
u16 min_turnaround_time;
};
+/* Generic Communications Channel Shared Memory Region */
+#define PCC_SIGNATURE 0x50434300
+/* Generic Communications Channel Command Field */
+#define PCC_CMD_GENERATE_DB_INTR BIT(15)
+/* Generic Communications Channel Status Field */
+#define PCC_STATUS_CMD_COMPLETE BIT(0)
+#define PCC_STATUS_SCI_DOORBELL BIT(1)
+#define PCC_STATUS_ERROR BIT(2)
+#define PCC_STATUS_PLATFORM_NOTIFY BIT(3)
+/* Initiator Responder Communications Channel Flags */
+#define PCC_CMD_COMPLETION_NOTIFY BIT(0)
+
#define MAX_PCC_SUBSPACES 256
+
#ifdef CONFIG_PCC
extern struct pcc_mbox_chan *
pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id);