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powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts

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This adds a number of functions for allocating IRQs under powernv PCIe for cxl.

Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Ian Munsie 2014-10-08 19:54:57 +11:00 • committed by Michael Ellerman
parent 1cd258d7fa
commit 80c49c7e4a
2 changed files with 185 additions and 0 deletions
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31
arch/powerpc/include/asm/pnv-pci.h Normal file
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/*
* Copyright 2014 IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ASM_PNV_PCI_H
#define _ASM_PNV_PCI_H
#include <linux/pci.h>
#include <misc/cxl.h>
int pnv_phb_to_cxl(struct pci_dev *dev);
int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
unsigned int virq);
int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
int pnv_cxl_get_irq_count(struct pci_dev *dev);
struct device_node *pnv_pci_to_phb_node(struct pci_dev *dev);
#ifdef CONFIG_CXL_BASE
int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
struct pci_dev *dev, int num);
void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
struct pci_dev *dev);
#endif
#endif