1 files changed, 95 insertions, 0 deletions
diff --git a/sys/dev/amdsmu/amdsmu.h b/sys/dev/amdsmu/amdsmu.h
new file mode 100644
index 000000000000..025887f7fe5a
--- /dev/null
+++ b/sys/dev/amdsmu/amdsmu.h
@@ -0,0 +1,95 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 The FreeBSD Foundation
+ *
+ * This software was developed by Aymeric Wibo <obiwac@freebsd.org>
+ * under sponsorship from the FreeBSD Foundation.
+ */
+#ifndef _AMDSMU_H_
+#define	_AMDSMU_H_
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <machine/bus.h>
+#include <x86/cputypes.h>
+
+#include <dev/amdsmu/amdsmu_reg.h>
+
+#define SMU_RES_READ_PERIOD_US	50
+#define SMU_RES_READ_MAX	20000
+
+static const struct amdsmu_product {
+	uint16_t	amdsmu_vendorid;
+	uint16_t	amdsmu_deviceid;
+} amdsmu_products[] = {
+	{ CPU_VENDOR_AMD,	PCI_DEVICEID_AMD_REMBRANDT_ROOT },
+	{ CPU_VENDOR_AMD,	PCI_DEVICEID_AMD_PHOENIX_ROOT },
+	{ CPU_VENDOR_AMD,	PCI_DEVICEID_AMD_STRIX_POINT_ROOT },
+};
+
+static const char *const amdsmu_ip_blocks_names[] = {
+    "DISPLAY",
+    "CPU",
+    "GFX",
+    "VDD",
+    "ACP",
+    "VCN",
+    "ISP",
+    "NBIO",
+    "DF",
+    "USB3_0",
+    "USB3_1",
+    "LAPIC",
+    "USB3_2",
+    "USB3_3",
+    "USB3_4",
+    "USB4_0",
+    "USB4_1",
+    "MPM",
+    "JPEG",
+    "IPU",
+    "UMSCH",
+    "VPE",
+};
+
+CTASSERT(nitems(amdsmu_ip_blocks_names) <= 32);
+
+struct amdsmu_softc {
+	struct sysctl_ctx_list	*sysctlctx;
+	struct sysctl_oid	*sysctlnode;
+
+	struct resource		*res;
+	bus_space_tag_t 	bus_tag;
+
+	bus_space_handle_t	smu_space;
+	bus_space_handle_t	reg_space;
+
+	uint8_t			smu_program;
+	uint8_t			smu_maj, smu_min, smu_rev;
+
+	uint32_t		active_ip_blocks;
+	struct sysctl_oid	*ip_blocks_sysctlnode;
+	size_t			ip_block_count;
+	struct sysctl_oid	*ip_block_sysctlnodes[nitems(amdsmu_ip_blocks_names)];
+	bool			ip_blocks_active[nitems(amdsmu_ip_blocks_names)];
+
+	bus_space_handle_t	metrics_space;
+	struct amdsmu_metrics	metrics;
+	uint32_t		idlemask;
+};
+
+static inline uint32_t
+amdsmu_read4(const struct amdsmu_softc *sc, bus_size_t reg)
+{
+	return (bus_space_read_4(sc->bus_tag, sc->reg_space, reg));
+}
+
+static inline void
+amdsmu_write4(const struct amdsmu_softc *sc, bus_size_t reg, uint32_t val)
+{
+	bus_space_write_4(sc->bus_tag, sc->reg_space, reg, val);
+}
+
+#endif /* _AMDSMU_H_ */