diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpi_memhotplug.c | 12 | ||||
| -rw-r--r-- | drivers/acpi/arm64/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/acpi/arm64/Makefile | 1 | ||||
| -rw-r--r-- | drivers/acpi/arm64/iort.c | 238 | ||||
| -rw-r--r-- | drivers/acpi/custom_method.c | 1 | ||||
| -rw-r--r-- | drivers/acpi/debugfs.c | 1 | ||||
| -rw-r--r-- | drivers/acpi/dptf/Makefile | 1 | ||||
| -rw-r--r-- | drivers/acpi/hmat/Makefile | 1 | ||||
| -rw-r--r-- | drivers/acpi/nfit/Makefile | 1 | ||||
| -rw-r--r-- | drivers/acpi/processor_core.c | 1 | ||||
| -rw-r--r-- | drivers/acpi/scan.c | 1 |
11 files changed, 130 insertions, 129 deletions
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 8fe0960ea572..db013dc21c02 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2004, 2013 Intel Corporation * Author: Naveen B S <naveen.b.s@intel.com> @@ -5,17 +6,6 @@ * * All rights reserved. * - * 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. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * * ACPI based HotPlug driver that supports Memory Hotplug * This driver fields notifications from firmware for memory add * and remove operations and alerts the VM of the affected memory diff --git a/drivers/acpi/arm64/Kconfig b/drivers/acpi/arm64/Kconfig index 5a6f80fce0d6..6dba187f4f2e 100644 --- a/drivers/acpi/arm64/Kconfig +++ b/drivers/acpi/arm64/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # ACPI Configuration for ARM64 # diff --git a/drivers/acpi/arm64/Makefile b/drivers/acpi/arm64/Makefile index 1017def2ea12..6ff50f4ed947 100644 --- a/drivers/acpi/arm64/Makefile +++ b/drivers/acpi/arm64/Makefile @@ -1,2 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_ACPI_IORT) += iort.o obj-$(CONFIG_ACPI_GTDT) += gtdt.o diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 9058cb084b91..b5390b4c9ade 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -753,31 +753,6 @@ static int __maybe_unused __get_pci_rid(struct pci_dev *pdev, u16 alias, return 0; } -static int arm_smmu_iort_xlate(struct device *dev, u32 streamid, - struct fwnode_handle *fwnode, - const struct iommu_ops *ops) -{ - int ret = iommu_fwspec_init(dev, fwnode, ops); - - if (!ret) - ret = iommu_fwspec_add_ids(dev, &streamid, 1); - - return ret; -} - -static inline bool iort_iommu_driver_enabled(u8 type) -{ - switch (type) { - case ACPI_IORT_NODE_SMMU_V3: - return IS_BUILTIN(CONFIG_ARM_SMMU_V3); - case ACPI_IORT_NODE_SMMU: - return IS_BUILTIN(CONFIG_ARM_SMMU); - default: - pr_warn("IORT node type %u does not describe an SMMU\n", type); - return false; - } -} - #ifdef CONFIG_IOMMU_API static struct acpi_iort_node *iort_get_msi_resv_iommu(struct device *dev) { @@ -878,15 +853,39 @@ int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) return (resv == its->its_count) ? resv : -ENODEV; } -#else -static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev) -{ return NULL; } -static inline int iort_add_device_replay(const struct iommu_ops *ops, - struct device *dev) -{ return 0; } -int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) -{ return 0; } -#endif + +static inline bool iort_iommu_driver_enabled(u8 type) +{ + switch (type) { + case ACPI_IORT_NODE_SMMU_V3: + return IS_BUILTIN(CONFIG_ARM_SMMU_V3); + case ACPI_IORT_NODE_SMMU: + return IS_BUILTIN(CONFIG_ARM_SMMU); + default: + pr_warn("IORT node type %u does not describe an SMMU\n", type); + return false; + } +} + +static int arm_smmu_iort_xlate(struct device *dev, u32 streamid, + struct fwnode_handle *fwnode, + const struct iommu_ops *ops) +{ + int ret = iommu_fwspec_init(dev, fwnode, ops); + + if (!ret) + ret = iommu_fwspec_add_ids(dev, &streamid, 1); + + return ret; +} + +static bool iort_pci_rc_supports_ats(struct acpi_iort_node *node) +{ + struct acpi_iort_root_complex *pci_rc; + + pci_rc = (struct acpi_iort_root_complex *)node->node_data; + return pci_rc->ats_attribute & ACPI_IORT_ATS_SUPPORTED; +} static int iort_iommu_xlate(struct device *dev, struct acpi_iort_node *node, u32 streamid) @@ -933,6 +932,93 @@ static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) return iort_iommu_xlate(info->dev, parent, streamid); } +/** + * iort_iommu_configure - Set-up IOMMU configuration for a device. + * + * @dev: device to configure + * + * Returns: iommu_ops pointer on configuration success + * NULL on configuration failure + */ +const struct iommu_ops *iort_iommu_configure(struct device *dev) +{ + struct acpi_iort_node *node, *parent; + const struct iommu_ops *ops; + u32 streamid = 0; + int err = -ENODEV; + + /* + * If we already translated the fwspec there + * is nothing left to do, return the iommu_ops. + */ + ops = iort_fwspec_iommu_ops(dev); + if (ops) + return ops; + + if (dev_is_pci(dev)) { + struct pci_bus *bus = to_pci_dev(dev)->bus; + struct iort_pci_alias_info info = { .dev = dev }; + + node = iort_scan_node(ACPI_IORT_NODE_PCI_ROOT_COMPLEX, + iort_match_node_callback, &bus->dev); + if (!node) + return NULL; + + info.node = node; + err = pci_for_each_dma_alias(to_pci_dev(dev), + iort_pci_iommu_init, &info); + + if (!err && iort_pci_rc_supports_ats(node)) + dev->iommu_fwspec->flags |= IOMMU_FWSPEC_PCI_RC_ATS; + } else { + int i = 0; + + node = iort_scan_node(ACPI_IORT_NODE_NAMED_COMPONENT, + iort_match_node_callback, dev); + if (!node) + return NULL; + + do { + parent = iort_node_map_platform_id(node, &streamid, + IORT_IOMMU_TYPE, + i++); + + if (parent) + err = iort_iommu_xlate(dev, parent, streamid); + } while (parent && !err); + } + + /* + * If we have reason to believe the IOMMU driver missed the initial + * add_device callback for dev, replay it to get things in order. + */ + if (!err) { + ops = iort_fwspec_iommu_ops(dev); + err = iort_add_device_replay(ops, dev); + } + + /* Ignore all other errors apart from EPROBE_DEFER */ + if (err == -EPROBE_DEFER) { + ops = ERR_PTR(err); + } else if (err) { + dev_dbg(dev, "Adding to IOMMU failed: %d\n", err); + ops = NULL; + } + + return ops; +} +#else +static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev) +{ return NULL; } +static inline int iort_add_device_replay(const struct iommu_ops *ops, + struct device *dev) +{ return 0; } +int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) +{ return 0; } +const struct iommu_ops *iort_iommu_configure(struct device *dev) +{ return NULL; } +#endif + static int nc_dma_get_range(struct device *dev, u64 *size) { struct acpi_iort_node *node; @@ -1031,90 +1117,6 @@ void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) dev_dbg(dev, "dma_pfn_offset(%#08llx)\n", offset); } -static bool iort_pci_rc_supports_ats(struct acpi_iort_node *node) -{ - struct acpi_iort_root_complex *pci_rc; - - pci_rc = (struct acpi_iort_root_complex *)node->node_data; - return pci_rc->ats_attribute & ACPI_IORT_ATS_SUPPORTED; -} - -/** - * iort_iommu_configure - Set-up IOMMU configuration for a device. - * - * @dev: device to configure - * - * Returns: iommu_ops pointer on configuration success - * NULL on configuration failure - */ -const struct iommu_ops *iort_iommu_configure(struct device *dev) -{ - struct acpi_iort_node *node, *parent; - const struct iommu_ops *ops; - u32 streamid = 0; - int err = -ENODEV; - - /* - * If we already translated the fwspec there - * is nothing left to do, return the iommu_ops. - */ - ops = iort_fwspec_iommu_ops(dev); - if (ops) - return ops; - - if (dev_is_pci(dev)) { - struct pci_bus *bus = to_pci_dev(dev)->bus; - struct iort_pci_alias_info info = { .dev = dev }; - - node = iort_scan_node(ACPI_IORT_NODE_PCI_ROOT_COMPLEX, - iort_match_node_callback, &bus->dev); - if (!node) - return NULL; - - info.node = node; - err = pci_for_each_dma_alias(to_pci_dev(dev), - iort_pci_iommu_init, &info); - - if (!err && iort_pci_rc_supports_ats(node)) - dev->iommu_fwspec->flags |= IOMMU_FWSPEC_PCI_RC_ATS; - } else { - int i = 0; - - node = iort_scan_node(ACPI_IORT_NODE_NAMED_COMPONENT, - iort_match_node_callback, dev); - if (!node) - return NULL; - - do { - parent = iort_node_map_platform_id(node, &streamid, - IORT_IOMMU_TYPE, - i++); - - if (parent) - err = iort_iommu_xlate(dev, parent, streamid); - } while (parent && !err); - } - - /* - * If we have reason to believe the IOMMU driver missed the initial - * add_device callback for dev, replay it to get things in order. - */ - if (!err) { - ops = iort_fwspec_iommu_ops(dev); - err = iort_add_device_replay(ops, dev); - } - - /* Ignore all other errors apart from EPROBE_DEFER */ - if (err == -EPROBE_DEFER) { - ops = ERR_PTR(err); - } else if (err) { - dev_dbg(dev, "Adding to IOMMU failed: %d\n", err); - ops = NULL; - } - - return ops; -} - static void __init acpi_iort_register_irq(int hwirq, const char *name, int trigger, struct resource *res) diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c index aa972dc5cb7e..b2ef4c2ec955 100644 --- a/drivers/acpi/custom_method.c +++ b/drivers/acpi/custom_method.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * custom_method.c - debugfs interface for customizing ACPI control method */ diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c index 68bb305b977f..d5ecea3715f8 100644 --- a/drivers/acpi/debugfs.c +++ b/drivers/acpi/debugfs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * debugfs.c - ACPI debugfs interface to userspace. */ diff --git a/drivers/acpi/dptf/Makefile b/drivers/acpi/dptf/Makefile index e6032e47e83f..1a9b0a2b25bf 100644 --- a/drivers/acpi/dptf/Makefile +++ b/drivers/acpi/dptf/Makefile @@ -1,2 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_ACPI) += int340x_thermal.o obj-$(CONFIG_DPTF_POWER) += dptf_power.o diff --git a/drivers/acpi/hmat/Makefile b/drivers/acpi/hmat/Makefile index e909051d3d00..1c20ef36a385 100644 --- a/drivers/acpi/hmat/Makefile +++ b/drivers/acpi/hmat/Makefile @@ -1 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_ACPI_HMAT) := hmat.o diff --git a/drivers/acpi/nfit/Makefile b/drivers/acpi/nfit/Makefile index 751081c47886..07f53c4e85fe 100644 --- a/drivers/acpi/nfit/Makefile +++ b/drivers/acpi/nfit/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_ACPI_NFIT) := nfit.o nfit-y := core.o nfit-y += intel.o diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 8c0a54d50d0e..f32beb7d7882 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2005 Intel Corporation * Copyright (C) 2009 Hewlett-Packard Development Company, L.P. diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 566270d0e91a..0e28270b0fd8 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * scan.c - support for transforming the ACPI namespace into individual objects */ |