1cb9cd5798
Change-Id: I730f80afd8aad250f26534435aec24bea75a849c Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37334 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
197 lines
4.8 KiB
C
197 lines
4.8 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2004 Linux Networx
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* (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx)
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* Copyright (C) 2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef PCI_OPS_H
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#define PCI_OPS_H
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#include <stdint.h>
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#include <device/device.h>
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#include <device/pci_type.h>
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#include <arch/pci_ops.h>
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void __noreturn pcidev_die(void);
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static __always_inline pci_devfn_t pcidev_bdf(const struct device *dev)
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{
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return (dev->path.pci.devfn << 12) | (dev->bus->secondary << 20);
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}
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static __always_inline pci_devfn_t pcidev_assert(const struct device *dev)
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{
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if (!dev)
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pcidev_die();
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return pcidev_bdf(dev);
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}
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#if defined(__SIMPLE_DEVICE__)
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#define ENV_PCI_SIMPLE_DEVICE 1
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#else
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#define ENV_PCI_SIMPLE_DEVICE 0
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#endif
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#if ENV_PCI_SIMPLE_DEVICE
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/* Avoid name collisions as different stages have different signature
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* for these functions. The _s_ stands for simple, fundamental IO or
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* MMIO variant.
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*/
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#define pci_read_config8 pci_s_read_config8
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#define pci_read_config16 pci_s_read_config16
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#define pci_read_config32 pci_s_read_config32
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#define pci_write_config8 pci_s_write_config8
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#define pci_write_config16 pci_s_write_config16
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#define pci_write_config32 pci_s_write_config32
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#else
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static __always_inline
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u8 pci_read_config8(const struct device *dev, u16 reg)
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{
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return pci_s_read_config8(PCI_BDF(dev), reg);
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}
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static __always_inline
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u16 pci_read_config16(const struct device *dev, u16 reg)
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{
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return pci_s_read_config16(PCI_BDF(dev), reg);
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}
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static __always_inline
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u32 pci_read_config32(const struct device *dev, u16 reg)
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{
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return pci_s_read_config32(PCI_BDF(dev), reg);
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}
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static __always_inline
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void pci_write_config8(const struct device *dev, u16 reg, u8 val)
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{
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pci_s_write_config8(PCI_BDF(dev), reg, val);
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}
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static __always_inline
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void pci_write_config16(const struct device *dev, u16 reg, u16 val)
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{
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pci_s_write_config16(PCI_BDF(dev), reg, val);
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}
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static __always_inline
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void pci_write_config32(const struct device *dev, u16 reg, u32 val)
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{
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pci_s_write_config32(PCI_BDF(dev), reg, val);
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}
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#endif
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#if ENV_PCI_SIMPLE_DEVICE
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static __always_inline
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void pci_or_config8(pci_devfn_t dev, u16 reg, u8 ormask)
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#else
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static __always_inline
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void pci_or_config8(const struct device *dev, u16 reg, u8 ormask)
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#endif
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{
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u8 value = pci_read_config8(dev, reg);
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pci_write_config8(dev, reg, value | ormask);
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}
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#if ENV_PCI_SIMPLE_DEVICE
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static __always_inline
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void pci_or_config16(pci_devfn_t dev, u16 reg, u16 ormask)
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#else
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static __always_inline
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void pci_or_config16(const struct device *dev, u16 reg, u16 ormask)
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#endif
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{
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u16 value = pci_read_config16(dev, reg);
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pci_write_config16(dev, reg, value | ormask);
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}
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#if ENV_PCI_SIMPLE_DEVICE
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static __always_inline
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void pci_or_config32(pci_devfn_t dev, u16 reg, u32 ormask)
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#else
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static __always_inline
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void pci_or_config32(const struct device *dev, u16 reg, u32 ormask)
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#endif
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{
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u32 value = pci_read_config32(dev, reg);
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pci_write_config32(dev, reg, value | ormask);
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}
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#if ENV_PCI_SIMPLE_DEVICE
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static __always_inline
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void pci_update_config8(pci_devfn_t dev, u16 reg, u8 mask, u8 or)
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#else
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static __always_inline
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void pci_update_config8(const struct device *dev, u16 reg, u8 mask, u8 or)
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#endif
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{
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u8 reg8;
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reg8 = pci_read_config8(dev, reg);
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reg8 &= mask;
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reg8 |= or;
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pci_write_config8(dev, reg, reg8);
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}
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#if ENV_PCI_SIMPLE_DEVICE
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static __always_inline
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void pci_update_config16(pci_devfn_t dev, u16 reg, u16 mask, u16 or)
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#else
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static __always_inline
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void pci_update_config16(const struct device *dev, u16 reg, u16 mask, u16 or)
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#endif
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{
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u16 reg16;
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reg16 = pci_read_config16(dev, reg);
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reg16 &= mask;
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reg16 |= or;
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pci_write_config16(dev, reg, reg16);
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}
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#if ENV_PCI_SIMPLE_DEVICE
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static __always_inline
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void pci_update_config32(pci_devfn_t dev, u16 reg, u32 mask, u32 or)
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#else
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static __always_inline
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void pci_update_config32(const struct device *dev, u16 reg, u32 mask, u32 or)
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#endif
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{
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u32 reg32;
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reg32 = pci_read_config32(dev, reg);
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reg32 &= mask;
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reg32 |= or;
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pci_write_config32(dev, reg, reg32);
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}
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u16 pci_s_find_next_capability(pci_devfn_t dev, u16 cap, u16 last);
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u16 pci_s_find_capability(pci_devfn_t dev, u16 cap);
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static __always_inline
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u16 pci_find_next_capability(const struct device *dev, u16 cap, u16 last)
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{
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return pci_s_find_next_capability(PCI_BDF(dev), cap, last);
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}
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static __always_inline
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u16 pci_find_capability(const struct device *dev, u16 cap)
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{
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return pci_s_find_capability(PCI_BDF(dev), cap);
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}
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#endif /* PCI_OPS_H */
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