<commit_before>/**
 * Copyright (c) 2018 YADRO (KNS Group LLC)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <skiboot.h>
#include <device.h>
#include <console.h>
#include <chip.h>
#include <ipmi.h>

#include "astbmc.h"

#define CHIP_ID_CPU0 0x00
#define CHIP_ID_CPU1 0x08
#define CHIP_ID_CPU2 0x10
#define CHIP_ID_CPU3 0x18


static const struct slot_table_entry vesnin_phb0_0_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector0",
	},
	{ .etype = st_end }
};


static const struct slot_table_entry vesnin_plx_slots[] = {
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0x01,0),
		.name = "Backplane BMC",
	},
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0x02,0),
		.name = "Backplane USB",
	},
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0x03,0),
		.name = "Backplane LAN",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_plx_up[] = {
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0,0),
		.children = vesnin_plx_slots,
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb0_1_slot[] = {
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0,0),
		.name = "Backplane PLX",
		.children = vesnin_plx_up,
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb0_2_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE0_x8_CPU0",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb8_0_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE1_x16_CPU1",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb8_1_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector1",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb8_2_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector2",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb9_0_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector3",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb9_1_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE3_x8_CPU2",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb9_2_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE2_x8_CPU2",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phbA_0_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE4_x16_CPU3",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phbA_1_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector4",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phbA_2_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector5",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb_table[] = {
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU0,0),
		.children = vesnin_phb0_0_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU0,1),
		.children = vesnin_phb0_1_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU0,2),
		.children = vesnin_phb0_2_slot,
	},

	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU1,0),
		.children = vesnin_phb8_0_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU1,1),
		.children = vesnin_phb8_1_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU1,2),
		.children = vesnin_phb8_2_slot,
	},

	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU2,0),
		.children = vesnin_phb9_0_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU2,1),
		.children = vesnin_phb9_1_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU2,2),
		.children = vesnin_phb9_2_slot,
	},

	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU3,0),
		.children = vesnin_phbA_0_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU3,1),
		.children = vesnin_phbA_1_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU3,2),
		.children = vesnin_phbA_2_slot,
	},
	{ .etype = st_end }
};

static bool vesnin_probe(void)
{
	if (!dt_node_is_compatible(dt_root, "YADRO,vesnin"))
		return false;

	/* Lot of common early inits here */
	astbmc_early_init();
	slot_table_init(vesnin_phb_table);

	return true;
}

DECLARE_PLATFORM(vesnin) = {
	.name			= "vesnin",
	.bmc			= &bmc_plat_ast2400_ami,
	.probe			= vesnin_probe,
	.init			= astbmc_init,
	.pci_get_slot_info	= slot_table_get_slot_info,
	.pci_probe_complete	= check_all_slot_table,
	.external_irq		= astbmc_ext_irq_serirq_cpld,
	.cec_power_down		= astbmc_ipmi_power_down,
	.cec_reboot		= astbmc_ipmi_reboot,
	.elog_commit		= ipmi_elog_commit,
	.start_preload_resource	= flash_start_preload_resource,
	.resource_loaded	= flash_resource_loaded,
	.exit			= ipmi_wdt_final_reset,
	.terminate		= ipmi_terminate,
};
<commit_msg>platforms/astbmc/vesnin: Send list of PCI devices to BMC through IPMI<commit_after>/**
 * Copyright (c) 2018 YADRO
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <skiboot.h>
#include <device.h>
#include <console.h>
#include <chip.h>
#include <ipmi.h>
#include <pci.h>
#include <pci-cfg.h>

#include "astbmc.h"

#define CHIP_ID_CPU0 0x00
#define CHIP_ID_CPU1 0x08
#define CHIP_ID_CPU2 0x10
#define CHIP_ID_CPU3 0x18

/* Current version of the PCI inventory synchronization packet. */
#define PCI_INV_VERSION 1

/* IPMI message identifier (IBM OEM) for PCI inventory. */
#define IPMI_PCI_INV IPMI_CODE(0x3a, 0x2a)

/* Id of the current PCI inventory synchronization session. */
static uint8_t pci_inv_session_id;

/**
 * struct pciinv_device - PCI device inventory description.
 * @domain_num: Domain number.
 * @bus_num: Bus number.
 * @device_num: Device number.
 * @func_num: Function number.
 * @vendor_id: Vendor Id.
 * @device_id: Device Id.
 * @class_code: Device class code.
 * @revision: Revision number.
 *
 * All fields have Big Endian byte order.
 */
struct pciinv_device {
	uint16_t	domain_num;
	uint8_t		bus_num;
	uint8_t		device_num;
	uint8_t		func_num;
	uint16_t	vendor_id;
	uint16_t	device_id;
	uint32_t	class_code;
	uint8_t		revision;
} __packed;

/**
 * struct pciinv_packet - IPMI message packet data.
 * @version: Packet version, must be set to %PCI_INVENTORY_VERSION.
 * @session: Sync session Id.
 * @device: PCI device description.
 */
struct pciinv_packet {
	uint8_t		version;
	uint8_t		session;
	struct pciinv_device device;
} __packed;


static const struct slot_table_entry vesnin_phb0_0_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector0",
	},
	{ .etype = st_end }
};


static const struct slot_table_entry vesnin_plx_slots[] = {
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0x01,0),
		.name = "Backplane BMC",
	},
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0x02,0),
		.name = "Backplane USB",
	},
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0x03,0),
		.name = "Backplane LAN",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_plx_up[] = {
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0,0),
		.children = vesnin_plx_slots,
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb0_1_slot[] = {
	{
		.etype = st_builtin_dev,
		.location = ST_LOC_DEVFN(0,0),
		.name = "Backplane PLX",
		.children = vesnin_plx_up,
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb0_2_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE0_x8_CPU0",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb8_0_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE1_x16_CPU1",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb8_1_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector1",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb8_2_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector2",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb9_0_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector3",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb9_1_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE3_x8_CPU2",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb9_2_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE2_x8_CPU2",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phbA_0_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "PCIE4_x16_CPU3",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phbA_1_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector4",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phbA_2_slot[] = {
	{
		.etype = st_pluggable_slot,
		.location = ST_LOC_DEVFN(0,0),
		.name = "AUX connector5",
	},
	{ .etype = st_end }
};

static const struct slot_table_entry vesnin_phb_table[] = {
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU0,0),
		.children = vesnin_phb0_0_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU0,1),
		.children = vesnin_phb0_1_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU0,2),
		.children = vesnin_phb0_2_slot,
	},

	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU1,0),
		.children = vesnin_phb8_0_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU1,1),
		.children = vesnin_phb8_1_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU1,2),
		.children = vesnin_phb8_2_slot,
	},

	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU2,0),
		.children = vesnin_phb9_0_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU2,1),
		.children = vesnin_phb9_1_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU2,2),
		.children = vesnin_phb9_2_slot,
	},

	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU3,0),
		.children = vesnin_phbA_0_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU3,1),
		.children = vesnin_phbA_1_slot,
	},
	{
		.etype = st_phb,
		.location = ST_LOC_PHB(CHIP_ID_CPU3,2),
		.children = vesnin_phbA_2_slot,
	},
	{ .etype = st_end }
};

/**
 * pciinv_walk() - Callback from PCI enumerator, see :c:func:`pci_walk_dev`.
 */
static int pciinv_walk(struct phb *phb, struct pci_device *pd, void *data __unused)
{
	struct ipmi_msg *msg;
	struct pciinv_packet pack = {
		.version = PCI_INV_VERSION,
		.session = pci_inv_session_id
	};

	/* PCI device filter: Skip non-EP devices */
	if (pci_has_cap(pd, PCI_CFG_CAP_ID_EXP, false)) {
		if (pd->dev_type != PCIE_TYPE_ENDPOINT)
			return OPAL_SUCCESS;
	}
	else if (pd->is_bridge)
		return OPAL_SUCCESS;

	/* Fill the PCI device inventory description */
	pack.device.domain_num = cpu_to_be16(phb->opal_id & 0xffff);
	pack.device.bus_num = (pd->bdfn >> 8) & 0xff;
	pack.device.device_num = (pd->bdfn >> 3) & 0x1f;
	pack.device.func_num = pd->bdfn & 0x7;
	pack.device.vendor_id = cpu_to_be16(PCI_VENDOR_ID(pd->vdid));
	pack.device.device_id = cpu_to_be16(PCI_DEVICE_ID(pd->vdid));
	pack.device.class_code = cpu_to_be32(pd->class & 0xffffff);
	pci_cfg_read8(phb, pd->bdfn, PCI_CFG_REV_ID, &pack.device.revision);

	msg = ipmi_mkmsg_simple(IPMI_PCI_INV, &pack, sizeof(pack));
	if (!msg)
		return OPAL_HARDWARE;

	/* Synchronously send the IPMI message, the queue is too small */
	ipmi_queue_msg_sync(msg);

	return OPAL_SUCCESS;
}

static void vesnin_pci_probe_complete(void)
{
	struct phb *phb;

	check_all_slot_table();

	/* Send PCI device list to the BMC */
	++pci_inv_session_id;
	for_each_phb(phb) {
		pci_walk_dev(phb, NULL, &pciinv_walk, NULL);
	}
}

static bool vesnin_probe(void)
{
	if (!dt_node_is_compatible(dt_root, "YADRO,vesnin"))
		return false;

	/* Lot of common early inits here */
	astbmc_early_init();
	slot_table_init(vesnin_phb_table);

	return true;
}

DECLARE_PLATFORM(vesnin) = {
	.name			= "vesnin",
	.bmc			= &bmc_plat_ast2400_ami,
	.probe			= vesnin_probe,
	.init			= astbmc_init,
	.pci_get_slot_info	= slot_table_get_slot_info,
	.pci_probe_complete	= vesnin_pci_probe_complete,
	.external_irq		= astbmc_ext_irq_serirq_cpld,
	.cec_power_down		= astbmc_ipmi_power_down,
	.cec_reboot		= astbmc_ipmi_reboot,
	.elog_commit		= ipmi_elog_commit,
	.start_preload_resource	= flash_start_preload_resource,
	.resource_loaded	= flash_resource_loaded,
	.exit			= ipmi_wdt_final_reset,
	.terminate		= ipmi_terminate,
};

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