| /kernel/linux/linux-6.6/arch/powerpc/platforms/powernv/ |
| D | pci-cxl.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2014-2016 IBM Corp.
7 #include <misc/cxl-base.h>
8 #include <asm/pnv-pci.h>
15 struct pci_controller *hose = pci_bus_to_host(dev->bus); in pnv_phb_to_cxl_mode()
16 struct pnv_phb *phb = hose->private_data; in pnv_phb_to_cxl_mode()
22 return -ENODEV; in pnv_phb_to_cxl_mode()
26 rc = opal_pci_set_phb_cxl_mode(phb->opal_id, mode, pe->pe_number); in pnv_phb_to_cxl_mode()
28 dev_err(&dev->dev, "Required cxl mode not supported by firmware - update skiboot\n"); in pnv_phb_to_cxl_mode()
30 dev_err(&dev->dev, "opal_pci_set_phb_cxl_mode failed: %i\n", rc); in pnv_phb_to_cxl_mode()
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| /kernel/linux/linux-5.10/arch/powerpc/platforms/powernv/ |
| D | pci-cxl.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2014-2016 IBM Corp.
7 #include <asm/pnv-pci.h>
14 struct pci_controller *hose = pci_bus_to_host(dev->bus); in pnv_phb_to_cxl_mode()
15 struct pnv_phb *phb = hose->private_data; in pnv_phb_to_cxl_mode()
21 return -ENODEV; in pnv_phb_to_cxl_mode()
25 rc = opal_pci_set_phb_cxl_mode(phb->opal_id, mode, pe->pe_number); in pnv_phb_to_cxl_mode()
27 dev_err(&dev->dev, "Required cxl mode not supported by firmware - update skiboot\n"); in pnv_phb_to_cxl_mode()
29 dev_err(&dev->dev, "opal_pci_set_phb_cxl_mode failed: %i\n", rc); in pnv_phb_to_cxl_mode()
38 int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num) in pnv_cxl_alloc_hwirqs() argument
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| /kernel/linux/linux-6.6/tools/testing/selftests/kvm/aarch64/ |
| D | vgic_irq.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * vgic_irq.c - Test userspace injection of IRQs
5 * This test validates the injection of IRQs from userspace using various
30 uint32_t nr_irqs; /* number of KVM supported IRQs. */
39 * 0x00 (highest priority) - 0xF8 (lowest priority), in steps of 8
47 #define LOWEST_PRIO (KVM_NUM_PRIOS - 1)
49 #define IRQ_DEFAULT_PRIO (LOWEST_PRIO - 1)
73 uint32_t num; member
80 uint32_t num, int level, bool expect_failure);
86 #define _KVM_INJECT_MULTI(cmd, intid, num, expect_failure) \ argument
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| /kernel/linux/linux-6.6/drivers/gpio/ |
| D | gpio-reg.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * gpio-reg: single register individually fixed-direction GPIOs
19 #include <linux/gpio/gpio-reg.h>
28 const int *irqs; member
37 return r->direction & BIT(offset) ? GPIO_LINE_DIRECTION_IN : in gpio_reg_get_direction()
46 if (r->direction & BIT(offset)) in gpio_reg_direction_output()
47 return -ENOTSUPP; in gpio_reg_direction_output()
49 gc->set(gc, offset, value); in gpio_reg_direction_output()
57 return r->direction & BIT(offset) ? 0 : -ENOTSUPP; in gpio_reg_direction_input()
66 spin_lock_irqsave(&r->lock, flags); in gpio_reg_set()
[all …]
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| /kernel/linux/linux-5.10/drivers/gpio/ |
| D | gpio-reg.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * gpio-reg: single register individually fixed-direction GPIOs
8 #include <linux/gpio/gpio-reg.h>
20 const int *irqs; member
29 return r->direction & BIT(offset) ? GPIO_LINE_DIRECTION_IN : in gpio_reg_get_direction()
38 if (r->direction & BIT(offset)) in gpio_reg_direction_output()
39 return -ENOTSUPP; in gpio_reg_direction_output()
41 gc->set(gc, offset, value); in gpio_reg_direction_output()
49 return r->direction & BIT(offset) ? 0 : -ENOTSUPP; in gpio_reg_direction_input()
58 spin_lock_irqsave(&r->lock, flags); in gpio_reg_set()
[all …]
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/interrupt-controller/ |
| D | fsl,irqsteer.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/fsl,irqsteer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lucas Stach <l.stach@pengutronix.de>
15 - const: fsl,imx-irqsteer
16 - items:
17 - const: fsl,imx8m-irqsteer
18 - const: fsl,imx-irqsteer
29 - description: output interrupt 0
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/interrupt-controller/ |
| D | fsl,irqsteer.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/fsl,irqsteer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lucas Stach <l.stach@pengutronix.de>
15 - const: fsl,imx-irqsteer
16 - items:
17 - const: fsl,imx8m-irqsteer
18 - const: fsl,imx-irqsteer
29 - description: output interrupt 0
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| /kernel/linux/linux-6.6/drivers/scsi/cxlflash/ |
| D | ocxl_hw.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
29 * Pseudo-filesystem to allocate inodes.
39 return init_pseudo(fc, OCXLFLASH_FS_MAGIC) ? 0 : -ENOMEM; in ocxlflash_fs_init_fs_context()
50 * ocxlflash_release_mapping() - release the memory mapping
55 if (ctx->mapping) in ocxlflash_release_mapping()
57 ctx->mapping = NULL; in ocxlflash_release_mapping()
61 * ocxlflash_getfile() - allocate pseudo filesystem, inode, and the file
78 if (fops->owner && !try_module_get(fops->owner)) { in ocxlflash_getfile()
80 rc = -ENOENT; in ocxlflash_getfile()
92 inode = alloc_anon_inode(ocxlflash_vfs_mount->mnt_sb); in ocxlflash_getfile()
[all …]
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| D | cxl_hw.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
37 static int cxlflash_map_afu_irq(void *ctx_cookie, int num, in cxlflash_map_afu_irq() argument
40 return cxl_map_afu_irq(ctx_cookie, num, handler, cookie, name); in cxlflash_map_afu_irq()
43 static void cxlflash_unmap_afu_irq(void *ctx_cookie, int num, void *cookie) in cxlflash_unmap_afu_irq() argument
45 cxl_unmap_afu_irq(ctx_cookie, num, cookie); in cxlflash_unmap_afu_irq()
100 static int cxlflash_allocate_afu_irqs(void *ctx_cookie, int num) in cxlflash_allocate_afu_irqs() argument
102 return cxl_allocate_afu_irqs(ctx_cookie, num); in cxlflash_allocate_afu_irqs()
131 static int cxlflash_start_work(void *ctx_cookie, u64 irqs) in cxlflash_start_work() argument
135 work.num_interrupts = irqs; in cxlflash_start_work()
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| /kernel/linux/linux-5.10/drivers/scsi/cxlflash/ |
| D | ocxl_hw.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
28 * Pseudo-filesystem to allocate inodes.
38 return init_pseudo(fc, OCXLFLASH_FS_MAGIC) ? 0 : -ENOMEM; in ocxlflash_fs_init_fs_context()
49 * ocxlflash_release_mapping() - release the memory mapping
54 if (ctx->mapping) in ocxlflash_release_mapping()
56 ctx->mapping = NULL; in ocxlflash_release_mapping()
60 * ocxlflash_getfile() - allocate pseudo filesystem, inode, and the file
77 if (fops->owner && !try_module_get(fops->owner)) { in ocxlflash_getfile()
79 rc = -ENOENT; in ocxlflash_getfile()
91 inode = alloc_anon_inode(ocxlflash_vfs_mount->mnt_sb); in ocxlflash_getfile()
[all …]
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| D | cxl_hw.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
37 static int cxlflash_map_afu_irq(void *ctx_cookie, int num, in cxlflash_map_afu_irq() argument
40 return cxl_map_afu_irq(ctx_cookie, num, handler, cookie, name); in cxlflash_map_afu_irq()
43 static void cxlflash_unmap_afu_irq(void *ctx_cookie, int num, void *cookie) in cxlflash_unmap_afu_irq() argument
45 cxl_unmap_afu_irq(ctx_cookie, num, cookie); in cxlflash_unmap_afu_irq()
100 static int cxlflash_allocate_afu_irqs(void *ctx_cookie, int num) in cxlflash_allocate_afu_irqs() argument
102 return cxl_allocate_afu_irqs(ctx_cookie, num); in cxlflash_allocate_afu_irqs()
131 static int cxlflash_start_work(void *ctx_cookie, u64 irqs) in cxlflash_start_work() argument
135 work.num_interrupts = irqs; in cxlflash_start_work()
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| /kernel/linux/linux-5.10/arch/powerpc/sysdev/ |
| D | msi_bitmap.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright 2006-2008, Michael Ellerman, IBM Corporation.
14 int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num) in msi_bitmap_alloc_hwirqs() argument
17 int offset, order = get_count_order(num); in msi_bitmap_alloc_hwirqs()
19 spin_lock_irqsave(&bmp->lock, flags); in msi_bitmap_alloc_hwirqs()
21 offset = bitmap_find_next_zero_area(bmp->bitmap, bmp->irq_count, 0, in msi_bitmap_alloc_hwirqs()
22 num, (1 << order) - 1); in msi_bitmap_alloc_hwirqs()
23 if (offset > bmp->irq_count) in msi_bitmap_alloc_hwirqs()
26 bitmap_set(bmp->bitmap, offset, num); in msi_bitmap_alloc_hwirqs()
27 spin_unlock_irqrestore(&bmp->lock, flags); in msi_bitmap_alloc_hwirqs()
[all …]
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| /kernel/linux/linux-6.6/arch/powerpc/sysdev/ |
| D | msi_bitmap.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright 2006-2008, Michael Ellerman, IBM Corporation.
15 int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num) in msi_bitmap_alloc_hwirqs() argument
18 int offset, order = get_count_order(num); in msi_bitmap_alloc_hwirqs()
20 spin_lock_irqsave(&bmp->lock, flags); in msi_bitmap_alloc_hwirqs()
22 offset = bitmap_find_next_zero_area(bmp->bitmap, bmp->irq_count, 0, in msi_bitmap_alloc_hwirqs()
23 num, (1 << order) - 1); in msi_bitmap_alloc_hwirqs()
24 if (offset > bmp->irq_count) in msi_bitmap_alloc_hwirqs()
27 bitmap_set(bmp->bitmap, offset, num); in msi_bitmap_alloc_hwirqs()
28 spin_unlock_irqrestore(&bmp->lock, flags); in msi_bitmap_alloc_hwirqs()
[all …]
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| /kernel/linux/linux-5.10/drivers/usb/gadget/udc/ |
| D | goku_udc.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Toshiba TC86C001 ("Goku-S") USB Device Controller driver
5 * Copyright (C) 2000-2002 Lineo
12 * This device has ep0 and three semi-configurable bulk/interrupt endpoints.
14 * - Endpoint numbering is fixed: ep{1,2,3}-bulk
15 * - Gadget drivers can choose ep maxpacket (8/16/32/64)
16 * - Gadget drivers can choose direction (IN, OUT)
17 * - DMA works with ep1 (OUT transfers) and ep2 (IN transfers).
21 // #define USB_TRACE /* packet-level success messages */
49 #define DRIVER_VERSION "30-Oct 2003"
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| /kernel/linux/linux-6.6/drivers/usb/gadget/udc/ |
| D | goku_udc.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Toshiba TC86C001 ("Goku-S") USB Device Controller driver
5 * Copyright (C) 2000-2002 Lineo
12 * This device has ep0 and three semi-configurable bulk/interrupt endpoints.
14 * - Endpoint numbering is fixed: ep{1,2,3}-bulk
15 * - Gadget drivers can choose ep maxpacket (8/16/32/64)
16 * - Gadget drivers can choose direction (IN, OUT)
17 * - DMA works with ep1 (OUT transfers) and ep2 (IN transfers).
21 // #define USB_TRACE /* packet-level success messages */
49 #define DRIVER_VERSION "30-Oct 2003"
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| /kernel/linux/linux-5.10/drivers/irqchip/ |
| D | irq-imgpdc.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright 2010-2013 Imagination Technologies Ltd.
66 * struct pdc_intc_priv - private pdc interrupt data.
71 * @domain: IRQ domain for PDC peripheral and syswake IRQs.
92 iowrite32(data, priv->pdc_base + reg_offs); in pdc_write()
98 return ioread32(priv->pdc_base + reg_offs); in pdc_read()
112 return hw - SYS0_HWIRQ; in hwirq_to_syswake()
122 return (struct pdc_intc_priv *)data->domain->host_data; in irqd_to_priv()
135 raw_spin_lock(&priv->lock); in perip_irq_mask()
136 priv->irq_route &= ~data->mask; in perip_irq_mask()
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| /kernel/linux/linux-6.6/drivers/irqchip/ |
| D | irq-imgpdc.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright 2010-2013 Imagination Technologies Ltd.
66 * struct pdc_intc_priv - private pdc interrupt data.
71 * @domain: IRQ domain for PDC peripheral and syswake IRQs.
92 iowrite32(data, priv->pdc_base + reg_offs); in pdc_write()
98 return ioread32(priv->pdc_base + reg_offs); in pdc_read()
112 return hw - SYS0_HWIRQ; in hwirq_to_syswake()
122 return (struct pdc_intc_priv *)data->domain->host_data; in irqd_to_priv()
135 raw_spin_lock(&priv->lock); in perip_irq_mask()
136 priv->irq_route &= ~data->mask; in perip_irq_mask()
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| /kernel/linux/linux-6.6/arch/powerpc/include/asm/ |
| D | pnv-pci.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
13 #include <misc/cxl-base.h>
14 #include <asm/opal-api.h>
33 int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
34 void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
41 int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
42 struct pci_dev *dev, int num);
43 void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
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| /kernel/linux/linux-5.10/arch/powerpc/include/asm/ |
| D | pnv-pci.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
12 #include <misc/cxl-base.h>
13 #include <asm/opal-api.h>
32 int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
33 void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
40 int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
41 struct pci_dev *dev, int num);
42 void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
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| /kernel/linux/linux-6.6/drivers/base/ |
| D | platform.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * platform.c - platform 'pseudo' bus for legacy devices
5 * Copyright (c) 2002-3 Patrick Mochel
6 * Copyright (c) 2002-3 Open Source Development Labs
8 * Please see Documentation/driver-api/driver-model/platform.rst for more
20 #include <linux/dma-mapping.h>
28 #include <linux/clk/clk-conf.h>
34 #include <linux/dma-map-ops.h>
48 * platform_get_resource - get a resource for a device
51 * @num: resource index
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| /kernel/linux/linux-5.10/drivers/misc/cxl/ |
| D | api.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
19 * Since we want to track memory mappings to be able to force-unmap
25 * Therefore we implement our own simple pseudo-filesystem and inode
27 * meta-data associated with it (address_space) and it is shared by
39 return init_pseudo(fc, CXL_PSEUDO_FS_MAGIC) ? 0 : -ENOMEM; in cxl_fs_init_fs_context()
52 if (ctx->kernelapi && ctx->mapping) in cxl_release_mapping()
66 if (fops->owner && !try_module_get(fops->owner)) in cxl_getfile()
67 return ERR_PTR(-ENOENT); in cxl_getfile()
76 inode = alloc_anon_inode(cxl_vfs_mount->mnt_sb); in cxl_getfile()
87 file->private_data = priv; in cxl_getfile()
[all …]
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| /kernel/linux/linux-6.6/drivers/misc/cxl/ |
| D | api.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
20 * Since we want to track memory mappings to be able to force-unmap
26 * Therefore we implement our own simple pseudo-filesystem and inode
28 * meta-data associated with it (address_space) and it is shared by
40 return init_pseudo(fc, CXL_PSEUDO_FS_MAGIC) ? 0 : -ENOMEM; in cxl_fs_init_fs_context()
53 if (ctx->kernelapi && ctx->mapping) in cxl_release_mapping()
67 if (fops->owner && !try_module_get(fops->owner)) in cxl_getfile()
68 return ERR_PTR(-ENOENT); in cxl_getfile()
77 inode = alloc_anon_inode(cxl_vfs_mount->mnt_sb); in cxl_getfile()
88 file->private_data = priv; in cxl_getfile()
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| /kernel/linux/linux-6.6/include/misc/ |
| D | cxl.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
35 * - cxl_dev_context_init()
36 * - cxl_start_context()
37 * - cxl_stop_context()
38 * - cxl_start_context()
39 * - cxl_stop_context()
41 * - cxl_release_context()
52 * Once a context has been inited, IRQs may be configured. Firstly these IRQs
56 * These IRQs can be unmapped (cxl_unmap_afu_irq()) and finally released
92 * Allocate AFU interrupts for this context. num=0 will allocate the default
[all …]
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| /kernel/linux/linux-5.10/include/misc/ |
| D | cxl.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
35 * - cxl_dev_context_init()
36 * - cxl_start_context()
37 * - cxl_stop_context()
38 * - cxl_start_context()
39 * - cxl_stop_context()
41 * - cxl_release_context()
52 * Once a context has been inited, IRQs may be configured. Firstly these IRQs
56 * These IRQs can be unmapped (cxl_unmap_afu_irq()) and finally released
92 * Allocate AFU interrupts for this context. num=0 will allocate the default
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| /kernel/linux/linux-5.10/drivers/s390/cio/ |
| D | airq.c | 1 // SPDX-License-Identifier: GPL-2.0
35 * register_adapter_interrupt() - register adapter interrupt handler
38 * Returns 0 on success, or -EINVAL.
44 if (!airq->handler || airq->isc > MAX_ISC) in register_adapter_interrupt()
45 return -EINVAL; in register_adapter_interrupt()
46 if (!airq->lsi_ptr) { in register_adapter_interrupt()
47 airq->lsi_ptr = kzalloc(1, GFP_KERNEL); in register_adapter_interrupt()
48 if (!airq->lsi_ptr) in register_adapter_interrupt()
49 return -ENOMEM; in register_adapter_interrupt()
50 airq->flags |= AIRQ_PTR_ALLOCATED; in register_adapter_interrupt()
[all …]
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