diff options
Diffstat (limited to 'drivers/vfio/platform')
| -rw-r--r-- | drivers/vfio/platform/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/vfio/platform/reset/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/vfio/platform/reset/vfio_platform_bcmflexrm.c | 10 | ||||
| -rw-r--r-- | drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c | 2 | ||||
| -rw-r--r-- | drivers/vfio/platform/vfio_amba.c | 81 | ||||
| -rw-r--r-- | drivers/vfio/platform/vfio_platform.c | 87 | ||||
| -rw-r--r-- | drivers/vfio/platform/vfio_platform_common.c | 183 | ||||
| -rw-r--r-- | drivers/vfio/platform/vfio_platform_private.h | 46 |
8 files changed, 213 insertions, 206 deletions
diff --git a/drivers/vfio/platform/Kconfig b/drivers/vfio/platform/Kconfig index dc1a3c44f2c6..331a5920f5ab 100644 --- a/drivers/vfio/platform/Kconfig +++ b/drivers/vfio/platform/Kconfig @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only config VFIO_PLATFORM tristate "VFIO support for platform devices" - depends on VFIO && EVENTFD && (ARM || ARM64) + depends on ARM || ARM64 || COMPILE_TEST select VFIO_VIRQFD help Support for platform devices with VFIO. This is required to make @@ -10,9 +10,10 @@ config VFIO_PLATFORM If you don't know what to do here, say N. +if VFIO_PLATFORM config VFIO_AMBA tristate "VFIO support for AMBA devices" - depends on VFIO_PLATFORM && ARM_AMBA + depends on ARM_AMBA || COMPILE_TEST help Support for ARM AMBA devices with VFIO. This is required to make use of ARM AMBA devices present on the system using the VFIO @@ -21,3 +22,4 @@ config VFIO_AMBA If you don't know what to do here, say N. source "drivers/vfio/platform/reset/Kconfig" +endif diff --git a/drivers/vfio/platform/reset/Kconfig b/drivers/vfio/platform/reset/Kconfig index 1edbe9ee7356..12f5f3d80387 100644 --- a/drivers/vfio/platform/reset/Kconfig +++ b/drivers/vfio/platform/reset/Kconfig @@ -1,7 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only config VFIO_PLATFORM_CALXEDAXGMAC_RESET tristate "VFIO support for calxeda xgmac reset" - depends on VFIO_PLATFORM help Enables the VFIO platform driver to handle reset for Calxeda xgmac @@ -9,7 +8,6 @@ config VFIO_PLATFORM_CALXEDAXGMAC_RESET config VFIO_PLATFORM_AMDXGBE_RESET tristate "VFIO support for AMD XGBE reset" - depends on VFIO_PLATFORM help Enables the VFIO platform driver to handle reset for AMD XGBE @@ -17,7 +15,7 @@ config VFIO_PLATFORM_AMDXGBE_RESET config VFIO_PLATFORM_BCMFLEXRM_RESET tristate "VFIO support for Broadcom FlexRM reset" - depends on VFIO_PLATFORM && (ARCH_BCM_IPROC || COMPILE_TEST) + depends on ARCH_BCM_IPROC || COMPILE_TEST default ARCH_BCM_IPROC help Enables the VFIO platform driver to handle reset for Broadcom FlexRM diff --git a/drivers/vfio/platform/reset/vfio_platform_bcmflexrm.c b/drivers/vfio/platform/reset/vfio_platform_bcmflexrm.c index 96064ef8f629..1131ebe4837d 100644 --- a/drivers/vfio/platform/reset/vfio_platform_bcmflexrm.c +++ b/drivers/vfio/platform/reset/vfio_platform_bcmflexrm.c @@ -1,14 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2017 Broadcom - * - * 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 version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c b/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c index 09a9453b75c5..63cc7f0b2e4a 100644 --- a/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c +++ b/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c @@ -26,7 +26,7 @@ #define XGMAC_DMA_CONTROL 0x00000f18 /* Ctrl (Operational Mode) */ #define XGMAC_DMA_INTR_ENA 0x00000f1c /* Interrupt Enable */ -/* DMA Control registe defines */ +/* DMA Control register defines */ #define DMA_CONTROL_ST 0x00002000 /* Start/Stop Transmission */ #define DMA_CONTROL_SR 0x00000002 /* Start/Stop Receive */ diff --git a/drivers/vfio/platform/vfio_amba.c b/drivers/vfio/platform/vfio_amba.c index 9636a2afaecd..eaea63e5294c 100644 --- a/drivers/vfio/platform/vfio_amba.c +++ b/drivers/vfio/platform/vfio_amba.c @@ -7,6 +7,7 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/vfio.h> +#include <linux/pm_runtime.h> #include <linux/amba/bus.h> #include "vfio_platform_private.h" @@ -40,51 +41,84 @@ static int get_amba_irq(struct vfio_platform_device *vdev, int i) return ret ? ret : -ENXIO; } -static int vfio_amba_probe(struct amba_device *adev, const struct amba_id *id) +static int vfio_amba_init_dev(struct vfio_device *core_vdev) { - struct vfio_platform_device *vdev; + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); + struct amba_device *adev = to_amba_device(core_vdev->dev); int ret; - vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); - if (!vdev) - return -ENOMEM; - vdev->name = kasprintf(GFP_KERNEL, "vfio-amba-%08x", adev->periphid); - if (!vdev->name) { - kfree(vdev); + if (!vdev->name) return -ENOMEM; - } vdev->opaque = (void *) adev; vdev->flags = VFIO_DEVICE_FLAGS_AMBA; vdev->get_resource = get_amba_resource; vdev->get_irq = get_amba_irq; - vdev->parent_module = THIS_MODULE; vdev->reset_required = false; - ret = vfio_platform_probe_common(vdev, &adev->dev); - if (ret) { + ret = vfio_platform_init_common(vdev); + if (ret) kfree(vdev->name); - kfree(vdev); - } - return ret; } -static int vfio_amba_remove(struct amba_device *adev) +static const struct vfio_device_ops vfio_amba_ops; +static int vfio_amba_probe(struct amba_device *adev, const struct amba_id *id) { struct vfio_platform_device *vdev; + int ret; - vdev = vfio_platform_remove_common(&adev->dev); - if (vdev) { - kfree(vdev->name); - kfree(vdev); - return 0; - } + vdev = vfio_alloc_device(vfio_platform_device, vdev, &adev->dev, + &vfio_amba_ops); + if (IS_ERR(vdev)) + return PTR_ERR(vdev); + + ret = vfio_register_group_dev(&vdev->vdev); + if (ret) + goto out_put_vdev; - return -EINVAL; + pm_runtime_enable(&adev->dev); + dev_set_drvdata(&adev->dev, vdev); + return 0; + +out_put_vdev: + vfio_put_device(&vdev->vdev); + return ret; } +static void vfio_amba_release_dev(struct vfio_device *core_vdev) +{ + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); + + vfio_platform_release_common(vdev); + kfree(vdev->name); + vfio_free_device(core_vdev); +} + +static void vfio_amba_remove(struct amba_device *adev) +{ + struct vfio_platform_device *vdev = dev_get_drvdata(&adev->dev); + + vfio_unregister_group_dev(&vdev->vdev); + pm_runtime_disable(vdev->device); + vfio_put_device(&vdev->vdev); +} + +static const struct vfio_device_ops vfio_amba_ops = { + .name = "vfio-amba", + .init = vfio_amba_init_dev, + .release = vfio_amba_release_dev, + .open_device = vfio_platform_open_device, + .close_device = vfio_platform_close_device, + .ioctl = vfio_platform_ioctl, + .read = vfio_platform_read, + .write = vfio_platform_write, + .mmap = vfio_platform_mmap, +}; + static const struct amba_id pl330_ids[] = { { 0, 0 }, }; @@ -99,6 +133,7 @@ static struct amba_driver vfio_amba_driver = { .name = "vfio-amba", .owner = THIS_MODULE, }, + .driver_managed_dma = true, }; module_amba_driver(vfio_amba_driver); diff --git a/drivers/vfio/platform/vfio_platform.c b/drivers/vfio/platform/vfio_platform.c index ae1a5eb98620..82cedcebfd90 100644 --- a/drivers/vfio/platform/vfio_platform.c +++ b/drivers/vfio/platform/vfio_platform.c @@ -7,6 +7,7 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/vfio.h> +#include <linux/pm_runtime.h> #include <linux/platform_device.h> #include "vfio_platform_private.h" @@ -25,71 +26,95 @@ static struct resource *get_platform_resource(struct vfio_platform_device *vdev, int num) { struct platform_device *dev = (struct platform_device *) vdev->opaque; - int i; - for (i = 0; i < dev->num_resources; i++) { - struct resource *r = &dev->resource[i]; - - if (resource_type(r) & (IORESOURCE_MEM|IORESOURCE_IO)) { - if (!num) - return r; - - num--; - } - } - return NULL; + return platform_get_mem_or_io(dev, num); } static int get_platform_irq(struct vfio_platform_device *vdev, int i) { struct platform_device *pdev = (struct platform_device *) vdev->opaque; - return platform_get_irq(pdev, i); + return platform_get_irq_optional(pdev, i); } -static int vfio_platform_probe(struct platform_device *pdev) +static int vfio_platform_init_dev(struct vfio_device *core_vdev) { - struct vfio_platform_device *vdev; - int ret; - - vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); - if (!vdev) - return -ENOMEM; + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); + struct platform_device *pdev = to_platform_device(core_vdev->dev); vdev->opaque = (void *) pdev; vdev->name = pdev->name; vdev->flags = VFIO_DEVICE_FLAGS_PLATFORM; vdev->get_resource = get_platform_resource; vdev->get_irq = get_platform_irq; - vdev->parent_module = THIS_MODULE; vdev->reset_required = reset_required; - ret = vfio_platform_probe_common(vdev, &pdev->dev); + return vfio_platform_init_common(vdev); +} + +static const struct vfio_device_ops vfio_platform_ops; +static int vfio_platform_probe(struct platform_device *pdev) +{ + struct vfio_platform_device *vdev; + int ret; + + vdev = vfio_alloc_device(vfio_platform_device, vdev, &pdev->dev, + &vfio_platform_ops); + if (IS_ERR(vdev)) + return PTR_ERR(vdev); + + ret = vfio_register_group_dev(&vdev->vdev); if (ret) - kfree(vdev); + goto out_put_vdev; + + pm_runtime_enable(&pdev->dev); + dev_set_drvdata(&pdev->dev, vdev); + return 0; +out_put_vdev: + vfio_put_device(&vdev->vdev); return ret; } -static int vfio_platform_remove(struct platform_device *pdev) +static void vfio_platform_release_dev(struct vfio_device *core_vdev) { - struct vfio_platform_device *vdev; + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); - vdev = vfio_platform_remove_common(&pdev->dev); - if (vdev) { - kfree(vdev); - return 0; - } + vfio_platform_release_common(vdev); + vfio_free_device(core_vdev); +} - return -EINVAL; +static int vfio_platform_remove(struct platform_device *pdev) +{ + struct vfio_platform_device *vdev = dev_get_drvdata(&pdev->dev); + + vfio_unregister_group_dev(&vdev->vdev); + pm_runtime_disable(vdev->device); + vfio_put_device(&vdev->vdev); + return 0; } +static const struct vfio_device_ops vfio_platform_ops = { + .name = "vfio-platform", + .init = vfio_platform_init_dev, + .release = vfio_platform_release_dev, + .open_device = vfio_platform_open_device, + .close_device = vfio_platform_close_device, + .ioctl = vfio_platform_ioctl, + .read = vfio_platform_read, + .write = vfio_platform_write, + .mmap = vfio_platform_mmap, +}; + static struct platform_driver vfio_platform_driver = { .probe = vfio_platform_probe, .remove = vfio_platform_remove, .driver = { .name = "vfio-platform", }, + .driver_managed_dma = true, }; module_platform_driver(vfio_platform_driver); diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c index c0771a9567fb..55dc4f43c31e 100644 --- a/drivers/vfio/platform/vfio_platform_common.c +++ b/drivers/vfio/platform/vfio_platform_common.c @@ -218,86 +218,70 @@ static int vfio_platform_call_reset(struct vfio_platform_device *vdev, return -EINVAL; } -static void vfio_platform_release(void *device_data) +void vfio_platform_close_device(struct vfio_device *core_vdev) { - struct vfio_platform_device *vdev = device_data; - - mutex_lock(&driver_lock); - - if (!(--vdev->refcnt)) { - const char *extra_dbg = NULL; - int ret; + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); + const char *extra_dbg = NULL; + int ret; - ret = vfio_platform_call_reset(vdev, &extra_dbg); - if (ret && vdev->reset_required) { - dev_warn(vdev->device, "reset driver is required and reset call failed in release (%d) %s\n", - ret, extra_dbg ? extra_dbg : ""); - WARN_ON(1); - } - pm_runtime_put(vdev->device); - vfio_platform_regions_cleanup(vdev); - vfio_platform_irq_cleanup(vdev); + ret = vfio_platform_call_reset(vdev, &extra_dbg); + if (WARN_ON(ret && vdev->reset_required)) { + dev_warn( + vdev->device, + "reset driver is required and reset call failed in release (%d) %s\n", + ret, extra_dbg ? extra_dbg : ""); } - - mutex_unlock(&driver_lock); - - module_put(vdev->parent_module); + pm_runtime_put(vdev->device); + vfio_platform_regions_cleanup(vdev); + vfio_platform_irq_cleanup(vdev); } +EXPORT_SYMBOL_GPL(vfio_platform_close_device); -static int vfio_platform_open(void *device_data) +int vfio_platform_open_device(struct vfio_device *core_vdev) { - struct vfio_platform_device *vdev = device_data; + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); + const char *extra_dbg = NULL; int ret; - if (!try_module_get(vdev->parent_module)) - return -ENODEV; - - mutex_lock(&driver_lock); - - if (!vdev->refcnt) { - const char *extra_dbg = NULL; - - ret = vfio_platform_regions_init(vdev); - if (ret) - goto err_reg; + ret = vfio_platform_regions_init(vdev); + if (ret) + return ret; - ret = vfio_platform_irq_init(vdev); - if (ret) - goto err_irq; + ret = vfio_platform_irq_init(vdev); + if (ret) + goto err_irq; - ret = pm_runtime_get_sync(vdev->device); - if (ret < 0) - goto err_pm; + ret = pm_runtime_get_sync(vdev->device); + if (ret < 0) + goto err_rst; - ret = vfio_platform_call_reset(vdev, &extra_dbg); - if (ret && vdev->reset_required) { - dev_warn(vdev->device, "reset driver is required and reset call failed in open (%d) %s\n", - ret, extra_dbg ? extra_dbg : ""); - goto err_rst; - } + ret = vfio_platform_call_reset(vdev, &extra_dbg); + if (ret && vdev->reset_required) { + dev_warn( + vdev->device, + "reset driver is required and reset call failed in open (%d) %s\n", + ret, extra_dbg ? extra_dbg : ""); + goto err_rst; } - - vdev->refcnt++; - - mutex_unlock(&driver_lock); return 0; err_rst: pm_runtime_put(vdev->device); -err_pm: vfio_platform_irq_cleanup(vdev); err_irq: vfio_platform_regions_cleanup(vdev); -err_reg: - mutex_unlock(&driver_lock); - module_put(THIS_MODULE); return ret; } +EXPORT_SYMBOL_GPL(vfio_platform_open_device); -static long vfio_platform_ioctl(void *device_data, - unsigned int cmd, unsigned long arg) +long vfio_platform_ioctl(struct vfio_device *core_vdev, + unsigned int cmd, unsigned long arg) { - struct vfio_platform_device *vdev = device_data; + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); + unsigned long minsz; if (cmd == VFIO_DEVICE_GET_INFO) { @@ -400,6 +384,7 @@ static long vfio_platform_ioctl(void *device_data, return -ENOTTY; } +EXPORT_SYMBOL_GPL(vfio_platform_ioctl); static ssize_t vfio_platform_read_mmio(struct vfio_platform_region *reg, char __user *buf, size_t count, @@ -456,10 +441,11 @@ err: return -EFAULT; } -static ssize_t vfio_platform_read(void *device_data, char __user *buf, - size_t count, loff_t *ppos) +ssize_t vfio_platform_read(struct vfio_device *core_vdev, + char __user *buf, size_t count, loff_t *ppos) { - struct vfio_platform_device *vdev = device_data; + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); unsigned int index = VFIO_PLATFORM_OFFSET_TO_INDEX(*ppos); loff_t off = *ppos & VFIO_PLATFORM_OFFSET_MASK; @@ -477,6 +463,7 @@ static ssize_t vfio_platform_read(void *device_data, char __user *buf, return -EINVAL; } +EXPORT_SYMBOL_GPL(vfio_platform_read); static ssize_t vfio_platform_write_mmio(struct vfio_platform_region *reg, const char __user *buf, size_t count, @@ -532,10 +519,11 @@ err: return -EFAULT; } -static ssize_t vfio_platform_write(void *device_data, const char __user *buf, - size_t count, loff_t *ppos) +ssize_t vfio_platform_write(struct vfio_device *core_vdev, const char __user *buf, + size_t count, loff_t *ppos) { - struct vfio_platform_device *vdev = device_data; + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); unsigned int index = VFIO_PLATFORM_OFFSET_TO_INDEX(*ppos); loff_t off = *ppos & VFIO_PLATFORM_OFFSET_MASK; @@ -553,6 +541,7 @@ static ssize_t vfio_platform_write(void *device_data, const char __user *buf, return -EINVAL; } +EXPORT_SYMBOL_GPL(vfio_platform_write); static int vfio_platform_mmap_mmio(struct vfio_platform_region region, struct vm_area_struct *vma) @@ -574,9 +563,10 @@ static int vfio_platform_mmap_mmio(struct vfio_platform_region region, req_len, vma->vm_page_prot); } -static int vfio_platform_mmap(void *device_data, struct vm_area_struct *vma) +int vfio_platform_mmap(struct vfio_device *core_vdev, struct vm_area_struct *vma) { - struct vfio_platform_device *vdev = device_data; + struct vfio_platform_device *vdev = + container_of(core_vdev, struct vfio_platform_device, vdev); unsigned int index; index = vma->vm_pgoff >> (VFIO_PLATFORM_OFFSET_SHIFT - PAGE_SHIFT); @@ -613,16 +603,7 @@ static int vfio_platform_mmap(void *device_data, struct vm_area_struct *vma) return -EINVAL; } - -static const struct vfio_device_ops vfio_platform_ops = { - .name = "vfio-platform", - .open = vfio_platform_open, - .release = vfio_platform_release, - .ioctl = vfio_platform_ioctl, - .read = vfio_platform_read, - .write = vfio_platform_write, - .mmap = vfio_platform_mmap, -}; +EXPORT_SYMBOL_GPL(vfio_platform_mmap); static int vfio_platform_of_probe(struct vfio_platform_device *vdev, struct device *dev) @@ -654,14 +635,10 @@ static int vfio_platform_of_probe(struct vfio_platform_device *vdev, * If the firmware is ACPI type, then acpi_disabled is 0. All other checks are * valid checks. We cannot claim that this system is DT. */ -int vfio_platform_probe_common(struct vfio_platform_device *vdev, - struct device *dev) +int vfio_platform_init_common(struct vfio_platform_device *vdev) { - struct iommu_group *group; int ret; - - if (!vdev) - return -EINVAL; + struct device *dev = vdev->vdev.dev; ret = vfio_platform_acpi_probe(vdev, dev); if (ret) @@ -671,53 +648,21 @@ int vfio_platform_probe_common(struct vfio_platform_device *vdev, return ret; vdev->device = dev; + mutex_init(&vdev->igate); ret = vfio_platform_get_reset(vdev); - if (ret && vdev->reset_required) { + if (ret && vdev->reset_required) dev_err(dev, "No reset function found for device %s\n", vdev->name); - return ret; - } - - group = vfio_iommu_group_get(dev); - if (!group) { - dev_err(dev, "No IOMMU group for device %s\n", vdev->name); - ret = -EINVAL; - goto put_reset; - } - - ret = vfio_add_group_dev(dev, &vfio_platform_ops, vdev); - if (ret) - goto put_iommu; - - mutex_init(&vdev->igate); - - pm_runtime_enable(vdev->device); - return 0; - -put_iommu: - vfio_iommu_group_put(group, dev); -put_reset: - vfio_platform_put_reset(vdev); return ret; } -EXPORT_SYMBOL_GPL(vfio_platform_probe_common); +EXPORT_SYMBOL_GPL(vfio_platform_init_common); -struct vfio_platform_device *vfio_platform_remove_common(struct device *dev) +void vfio_platform_release_common(struct vfio_platform_device *vdev) { - struct vfio_platform_device *vdev; - - vdev = vfio_del_group_dev(dev); - - if (vdev) { - pm_runtime_disable(vdev->device); - vfio_platform_put_reset(vdev); - vfio_iommu_group_put(dev->iommu_group, dev); - } - - return vdev; + vfio_platform_put_reset(vdev); } -EXPORT_SYMBOL_GPL(vfio_platform_remove_common); +EXPORT_SYMBOL_GPL(vfio_platform_release_common); void __vfio_platform_register_reset(struct vfio_platform_reset_node *node) { diff --git a/drivers/vfio/platform/vfio_platform_private.h b/drivers/vfio/platform/vfio_platform_private.h index 289089910643..8d8fab516849 100644 --- a/drivers/vfio/platform/vfio_platform_private.h +++ b/drivers/vfio/platform/vfio_platform_private.h @@ -9,6 +9,7 @@ #include <linux/types.h> #include <linux/interrupt.h> +#include <linux/vfio.h> #define VFIO_PLATFORM_OFFSET_SHIFT 40 #define VFIO_PLATFORM_OFFSET_MASK (((u64)(1) << VFIO_PLATFORM_OFFSET_SHIFT) - 1) @@ -42,13 +43,12 @@ struct vfio_platform_region { }; struct vfio_platform_device { + struct vfio_device vdev; struct vfio_platform_region *regions; u32 num_regions; struct vfio_platform_irq *irqs; u32 num_irqs; - int refcnt; struct mutex igate; - struct module *parent_module; const char *compat; const char *acpihid; struct module *reset_module; @@ -78,22 +78,32 @@ struct vfio_platform_reset_node { vfio_platform_reset_fn_t of_reset; }; -extern int vfio_platform_probe_common(struct vfio_platform_device *vdev, - struct device *dev); -extern struct vfio_platform_device *vfio_platform_remove_common - (struct device *dev); - -extern int vfio_platform_irq_init(struct vfio_platform_device *vdev); -extern void vfio_platform_irq_cleanup(struct vfio_platform_device *vdev); - -extern int vfio_platform_set_irqs_ioctl(struct vfio_platform_device *vdev, - uint32_t flags, unsigned index, - unsigned start, unsigned count, - void *data); - -extern void __vfio_platform_register_reset(struct vfio_platform_reset_node *n); -extern void vfio_platform_unregister_reset(const char *compat, - vfio_platform_reset_fn_t fn); +int vfio_platform_init_common(struct vfio_platform_device *vdev); +void vfio_platform_release_common(struct vfio_platform_device *vdev); + +int vfio_platform_open_device(struct vfio_device *core_vdev); +void vfio_platform_close_device(struct vfio_device *core_vdev); +long vfio_platform_ioctl(struct vfio_device *core_vdev, + unsigned int cmd, unsigned long arg); +ssize_t vfio_platform_read(struct vfio_device *core_vdev, + char __user *buf, size_t count, + loff_t *ppos); +ssize_t vfio_platform_write(struct vfio_device *core_vdev, + const char __user *buf, + size_t count, loff_t *ppos); +int vfio_platform_mmap(struct vfio_device *core_vdev, + struct vm_area_struct *vma); + +int vfio_platform_irq_init(struct vfio_platform_device *vdev); +void vfio_platform_irq_cleanup(struct vfio_platform_device *vdev); + +int vfio_platform_set_irqs_ioctl(struct vfio_platform_device *vdev, + uint32_t flags, unsigned index, + unsigned start, unsigned count, void *data); + +void __vfio_platform_register_reset(struct vfio_platform_reset_node *n); +void vfio_platform_unregister_reset(const char *compat, + vfio_platform_reset_fn_t fn); #define vfio_platform_register_reset(__compat, __reset) \ static struct vfio_platform_reset_node __reset ## _node = { \ .owner = THIS_MODULE, \ |