From 1a9ac347212f2fd0bbd80a3449ef486e3d643b64 Mon Sep 17 00:00:00 2001
From: Fred Reitberger <reitbergerfred@gmail.com>
Date: Thu, 3 Nov 2022 15:19:51 -0400
Subject: soc/amd/common/data_fabric: Make common device ops

Add the generic data_fabric_acpi_name function and device ops to common
code.

Signed-off-by: Fred Reitberger <reitbergerfred@gmail.com>
Change-Id: I12053389a12081ddd81912a647bb532b31062093
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69173
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
---
 .../common/block/data_fabric/data_fabric_helper.c  | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'src')

diff --git a/src/soc/amd/common/block/data_fabric/data_fabric_helper.c b/src/soc/amd/common/block/data_fabric/data_fabric_helper.c
index 181c71e57fe4..412daaee6436 100644
--- a/src/soc/amd/common/block/data_fabric/data_fabric_helper.c
+++ b/src/soc/amd/common/block/data_fabric/data_fabric_helper.c
@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include <acpi/acpi_device.h>
 #include <amdblocks/data_fabric.h>
 #include <amdblocks/pci_devs.h>
 #include <arch/hpet.h>
@@ -169,3 +170,31 @@ void data_fabric_set_mmio_np(void)
 
 	data_fabric_print_mmio_conf();
 }
+
+static const char *data_fabric_acpi_name(const struct device *dev)
+{
+	const char *df_acpi_names[8] = {
+		"DFD0",
+		"DFD1",
+		"DFD2",
+		"DFD3",
+		"DFD4",
+		"DFD5",
+		"DFD6",
+		"DFD7"
+	};
+
+	if (dev->path.type == DEVICE_PATH_PCI &&
+	    PCI_SLOT(dev->path.pci.devfn) == DF_DEV)
+		return df_acpi_names[PCI_FUNC(dev->path.pci.devfn)];
+
+	printk(BIOS_ERR, "%s: Unhandled device id 0x%x\n", __func__, dev->device);
+	return NULL;
+}
+
+struct device_operations amd_data_fabric_ops = {
+	.read_resources		= noop_read_resources,
+	.set_resources		= noop_set_resources,
+	.acpi_name		= data_fabric_acpi_name,
+	.acpi_fill_ssdt		= acpi_device_write_pci_dev,
+};
-- 
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