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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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5a0fcb0ef5
Remove the cxl driver that provides support for the IBM Coherent Accelerator Processor Interface. Revert or clean up associated code in arch/powerpc that is no longer necessary. cxl has received minimal maintenance for several years, and is not supported on the Power10 processor. We aren't aware of any users who are likely to be using recent kernels. Thanks to Mikey Neuling, Ian Munsie, Daniel Axtens, Frederic Barrat, Christophe Lombard, Philippe Bergheaud, Vaibhav Jain and Alastair D'Silva for their work on this driver over the years. Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Acked-by: Madhavan Srinivasan <maddy@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://patch.msgid.link/20250219070007.177725-2-ajd@linux.ibm.com
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright 2014 IBM Corp.
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*/
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#ifndef _ASM_PNV_PCI_H
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#define _ASM_PNV_PCI_H
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#include <linux/pci.h>
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#include <linux/pci_hotplug.h>
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#include <linux/irq.h>
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#include <linux/of.h>
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#include <asm/opal-api.h>
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#define PCI_SLOT_ID_PREFIX (1UL << 63)
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#define PCI_SLOT_ID(phb_id, bdfn) \
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(PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id))
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#define PCI_PHB_SLOT_ID(phb_id) (phb_id)
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extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id);
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extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len);
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extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state);
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extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state);
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extern int pnv_pci_set_power_state(uint64_t id, uint8_t state,
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struct opal_msg *msg);
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int64_t pnv_opal_pci_msi_eoi(struct irq_data *d);
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bool is_pnv_opal_msi(struct irq_chip *chip);
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struct pnv_php_slot {
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struct hotplug_slot slot;
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uint64_t id;
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char *name;
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int slot_no;
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unsigned int flags;
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#define PNV_PHP_FLAG_BROKEN_PDC 0x1
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struct kref kref;
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#define PNV_PHP_STATE_INITIALIZED 0
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#define PNV_PHP_STATE_REGISTERED 1
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#define PNV_PHP_STATE_POPULATED 2
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#define PNV_PHP_STATE_OFFLINE 3
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int state;
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int irq;
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struct workqueue_struct *wq;
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struct device_node *dn;
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struct pci_dev *pdev;
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struct pci_bus *bus;
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bool power_state_check;
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u8 attention_state;
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void *fdt;
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void *dt;
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struct of_changeset ocs;
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struct pnv_php_slot *parent;
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struct list_head children;
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struct list_head link;
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};
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extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn);
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extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot,
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uint8_t state);
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#endif
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