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/linux/drivers/pci/msi/
H A Dmsi.c23 * @nvec: how many MSIs have been requested?
29 static int pci_msi_supported(struct pci_dev *dev, int nvec) in pci_msi_supported() argument
43 * b) the list manipulation code assumes nvec >= 1. in pci_msi_supported()
45 if (nvec < 1) in pci_msi_supported()
285 static int msi_setup_msi_desc(struct pci_dev *dev, int nvec, in msi_setup_msi_desc() argument
302 desc.nvec_used = nvec; in msi_setup_msi_desc()
307 desc.pci.msi_attrib.multiple = ilog2(__roundup_pow_of_two(nvec)); in msi_setup_msi_desc()
342 * @nvec: number of interrupts to allocate
351 static int msi_capability_init(struct pci_dev *dev, int nvec, in msi_capability_init() argument
359 if (nvec > 1 && !pci_msi_domain_supports(dev, MSI_FLAG_MULTI_PCI_MSI, ALLOW_LEGACY)) in msi_capability_init()
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H A Dlegacy.c19 int __weak arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) in arch_setup_msi_irqs() argument
28 if (type == PCI_CAP_ID_MSI && nvec > 1) in arch_setup_msi_irqs()
66 int pci_msi_legacy_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) in pci_msi_legacy_setup_msi_irqs() argument
68 int ret = arch_setup_msi_irqs(dev, nvec, type); in pci_msi_legacy_setup_msi_irqs()
H A Dmsi.h8 int pci_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
116 int pci_msi_legacy_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
119 static inline int pci_msi_legacy_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) in pci_msi_legacy_setup_msi_irqs() argument
/linux/drivers/staging/nvec/
H A Dnvec_paz00.c15 #include "nvec.h"
23 struct nvec_chip *nvec; member
34 nvec_write_async(led->nvec, buf, sizeof(buf)); in nvec_led_brightness_set()
41 struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent); in nvec_paz00_probe() local
54 led->nvec = nvec; in nvec_paz00_probe()
71 .name = "nvec-paz00",
78 MODULE_DESCRIPTION("Tegra NVEC PAZ00 driver");
80 MODULE_ALIAS("platform:nvec-paz00");
H A DKconfig11 called mfd-nvec
21 called keyboard-nvec
31 called serio-nvec-ps2
35 tristate "NVEC charger and battery"
42 called nvec-power
53 called nvec-paz00
H A DREADME1 NVEC: An NVidia compliant Embedded Controller Protocol Implementation
3 This is an implementation of the NVEC protocol used to communicate with an
9 but the source code[1] of the published nvec reference drivers can be a guide.
13 [1] e.g. https://nv-tegra.nvidia.com/gitweb/?p=linux-2.6.git;a=tree;f=arch/arm/mach-tegra/nvec;hb=a…
H A Dnvec.h3 * NVEC: NVIDIA compliant embedded controller interface
164 int nvec_write_async(struct nvec_chip *nvec, const unsigned char *data,
167 int nvec_write_sync(struct nvec_chip *nvec,
171 int nvec_register_notifier(struct nvec_chip *nvec,
177 void nvec_msg_free(struct nvec_chip *nvec, struct nvec_msg *msg);
H A Dnvec-keytable.h3 * drivers/input/keyboard/tegra-nvec.c
5 * Keyboard class input driver for keyboards connected to an NvEc compliant
/linux/drivers/irqchip/
H A Dirq-gic-v3-its-msi-parent.c43 int nvec, msi_alloc_info_t *info) in its_pci_msi_prepare() argument
78 if (msi_info->hwsize > nvec) in its_pci_msi_prepare()
79 nvec = msi_info->hwsize; in its_pci_msi_prepare()
88 nvec = max(nvec, alias_count); in its_pci_msi_prepare()
91 nvec = max_t(int, minnvec, roundup_pow_of_two(nvec)); in its_pci_msi_prepare()
94 return msi_info->ops->msi_prepare(domain->parent, dev, nvec, info); in its_pci_msi_prepare()
130 int nvec, msi_alloc_info_t *info) in its_pmsi_prepare() argument
151 if (msi_info->hwsize > nvec) in its_pmsi_prepare()
152 nvec = msi_info->hwsize; in its_pmsi_prepare()
155 nvec = max_t(int, 32, roundup_pow_of_two(nvec)); in its_pmsi_prepare()
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H A Dirq-gic-v3-its-fsl-mc-msi.c41 int nvec, msi_alloc_info_t *info) in its_fsl_mc_msi_prepare() argument
64 nvec = max_t(int, 32, roundup_pow_of_two(nvec)); in its_fsl_mc_msi_prepare()
65 return msi_info->ops->msi_prepare(msi_domain->parent, dev, nvec, info); in its_fsl_mc_msi_prepare()
/linux/drivers/net/wwan/iosm/
H A Diosm_ipc_irq.c40 if (instance >= ipc_pcie->nvec) in ipc_msi_interrupt()
54 while (--ipc_pcie->nvec >= 0) in ipc_release_irq()
55 free_irq(pdev->irq + ipc_pcie->nvec, ipc_pcie); in ipc_release_irq()
65 ipc_pcie->nvec = pci_alloc_irq_vectors(pdev, IPC_MSI_VECTORS, in ipc_acquire_irq()
68 if (ipc_pcie->nvec < 0) { in ipc_acquire_irq()
69 rc = ipc_pcie->nvec; in ipc_acquire_irq()
76 for (i = 0; i < ipc_pcie->nvec; ++i) { in ipc_acquire_irq()
82 ipc_pcie->nvec = i; in ipc_acquire_irq()
/linux/arch/x86/pci/
H A Dxen.c161 int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
167 static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) in xen_setup_msi_irqs() argument
173 if (type == PCI_CAP_ID_MSI && nvec > 1) in xen_setup_msi_irqs()
176 v = kcalloc(max(1, nvec), sizeof(int), GFP_KERNEL); in xen_setup_msi_irqs()
181 ret = xen_pci_frontend_enable_msix(dev, v, nvec); in xen_setup_msi_irqs()
189 (type == PCI_CAP_ID_MSI) ? nvec : 1, in xen_setup_msi_irqs()
229 static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) in xen_hvm_setup_msi_irqs() argument
235 if (type == PCI_CAP_ID_MSI && nvec > 1) in xen_hvm_setup_msi_irqs()
248 (type == PCI_CAP_ID_MSI) ? nvec : 1, in xen_hvm_setup_msi_irqs()
268 static int xen_initdom_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) in xen_initdom_setup_msi_irqs() argument
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/linux/drivers/base/
H A Dplatform-msi.c54 * @nvec: The number of interrupts to allocate
62 * a fixed size of @nvec. The domain is managed by devres and will
69 int platform_device_msi_init_and_alloc_irqs(struct device *dev, unsigned int nvec, in platform_device_msi_init_and_alloc_irqs() argument
84 nvec, NULL, write_msi_msg)) in platform_device_msi_init_and_alloc_irqs()
87 return msi_domain_alloc_irqs_range(dev, MSI_DEFAULT_DOMAIN, 0, nvec - 1); in platform_device_msi_init_and_alloc_irqs()
H A Dplatform.c344 int i, ret, nvec; in devm_platform_get_irqs_affinity() local
352 nvec = platform_irq_count(dev); in devm_platform_get_irqs_affinity()
353 if (nvec < 0) in devm_platform_get_irqs_affinity()
354 return nvec; in devm_platform_get_irqs_affinity()
356 if (nvec < minvec) in devm_platform_get_irqs_affinity()
359 nvec = irq_calc_affinity_vectors(minvec, nvec, affd); in devm_platform_get_irqs_affinity()
360 if (nvec < minvec) in devm_platform_get_irqs_affinity()
363 if (nvec > maxvec) in devm_platform_get_irqs_affinity()
364 nvec = maxvec; in devm_platform_get_irqs_affinity()
366 size = sizeof(*ptr) + sizeof(unsigned int) * nvec; in devm_platform_get_irqs_affinity()
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/linux/drivers/soc/ti/
H A Dti_sci_inta_msi.c97 int ret, nvec; in ti_sci_inta_msi_domain_alloc_irqs() local
107 nvec = ti_sci_inta_msi_alloc_descs(dev, res); in ti_sci_inta_msi_domain_alloc_irqs()
108 if (nvec <= 0) { in ti_sci_inta_msi_domain_alloc_irqs()
109 ret = nvec; in ti_sci_inta_msi_domain_alloc_irqs()
114 ret = msi_domain_alloc_irqs_all_locked(dev, MSI_DEFAULT_DOMAIN, nvec); in ti_sci_inta_msi_domain_alloc_irqs()
/linux/arch/powerpc/kernel/
H A Dmsi.c12 int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) in arch_setup_msi_irqs() argument
23 if (type == PCI_CAP_ID_MSI && nvec > 1) in arch_setup_msi_irqs()
26 return phb->controller_ops.setup_msi_irqs(dev, nvec, type); in arch_setup_msi_irqs()
/linux/drivers/pci/pcie/
H A Dportdrv.c60 u32 nvec = 0, pos; in pcie_message_numbers() local
74 nvec = *pme + 1; in pcie_message_numbers()
86 nvec = max(nvec, *aer + 1); in pcie_message_numbers()
97 nvec = max(nvec, *dpc + 1); in pcie_message_numbers()
101 return nvec; in pcie_message_numbers()
115 int nr_entries, nvec, pcie_irq; in pcie_port_enable_irq_vec() local
125 nvec = pcie_message_numbers(dev, mask, &pme, &aer, &dpc); in pcie_port_enable_irq_vec()
126 if (nvec > nr_entries) { in pcie_port_enable_irq_vec()
142 if (nvec != nr_entries) { in pcie_port_enable_irq_vec()
145 nr_entries = pci_alloc_irq_vectors(dev, nvec, nvec, in pcie_port_enable_irq_vec()
/linux/drivers/gpu/drm/vmwgfx/
H A Dvmwgfx_irq.c331 int nvec; in vmw_irq_install() local
337 nvec = pci_alloc_irq_vectors(pdev, 1, VMWGFX_MAX_NUM_IRQS, in vmw_irq_install()
340 if (nvec <= 0) { in vmw_irq_install()
342 "IRQ's are unavailable, nvec: %d\n", nvec); in vmw_irq_install()
343 ret = nvec; in vmw_irq_install()
349 for (i = 0; i < nvec; ++i) { in vmw_irq_install()
/linux/drivers/mmc/host/
H A Dcavium-thunderx.c40 int nvec, ret, i; in thunder_mmc_register_interrupts() local
42 nvec = pci_alloc_irq_vectors(pdev, 1, 9, PCI_IRQ_MSIX); in thunder_mmc_register_interrupts()
43 if (nvec < 0) in thunder_mmc_register_interrupts()
44 return nvec; in thunder_mmc_register_interrupts()
47 for (i = 0; i < nvec; i++) { in thunder_mmc_register_interrupts()
/linux/drivers/gpu/drm/xe/
H A Dxe_irq.c735 int nvec = 1; in xe_irq_install() local
741 nvec = xe->irq.msix.nvec; in xe_irq_install()
745 err = pci_alloc_irq_vectors(pdev, nvec, nvec, irq_flags); in xe_irq_install()
810 int nvec = pci_msix_vec_count(pdev); in xe_irq_msix_init() local
812 if (nvec == -EINVAL) in xe_irq_msix_init()
815 if (nvec < 0) { in xe_irq_msix_init()
816 drm_err(&xe->drm, "Failed getting MSI-X vectors count: %d\n", nvec); in xe_irq_msix_init()
817 return nvec; in xe_irq_msix_init()
820 xe->irq.msix.nvec = nvec; in xe_irq_msix_init()
878 limit = (dynamic_msix) ? XA_LIMIT(NUM_OF_STATIC_MSIX, xe->irq.msix.nvec - 1) : in xe_irq_msix_alloc_vector()
/linux/Documentation/devicetree/bindings/soc/tegra/
H A Dnvidia,nvec.yaml4 $id: http://devicetree.org/schemas/soc/tegra/nvidia,nvec.yaml#
15 const: nvidia,nvec
73 compatible = "nvidia,nvec";
/linux/arch/x86/include/asm/xen/
H A Dpci.h34 int (*enable_msix)(struct pci_dev *dev, int vectors[], int nvec);
53 int vectors[], int nvec) in xen_pci_frontend_enable_msix() argument
56 return xen_pci_frontend->enable_msix(dev, vectors, nvec); in xen_pci_frontend_enable_msix()
/linux/arch/powerpc/platforms/pasemi/
H A Dmsi.c74 static int pasemi_msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) in pasemi_msi_setup_msi_irqs() argument
83 pr_debug("pasemi_msi_setup_msi_irqs, pdev %p nvec %d type %d\n", in pasemi_msi_setup_msi_irqs()
84 pdev, nvec, type); in pasemi_msi_setup_msi_irqs()
/linux/arch/s390/pci/
H A Dpci_irq.c299 int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) in arch_setup_msi_irqs() argument
312 msi_vecs = min_t(unsigned int, nvec, zdev->max_msi); in arch_setup_msi_irqs()
313 if (msi_vecs < nvec) { in arch_setup_msi_irqs()
315 pci_name(pdev), nvec, zdev->max_msi); in arch_setup_msi_irqs()
385 return (zdev->msi_nr_irqs == nvec) ? 0 : zdev->msi_nr_irqs; in arch_setup_msi_irqs()
/linux/drivers/net/ethernet/microsoft/mana/
H A Dgdma_main.c1292 int nvec, *irqs, irq; in mana_gd_setup_irqs() local
1303 nvec = pci_alloc_irq_vectors(pdev, 2, max_irqs, PCI_IRQ_MSIX); in mana_gd_setup_irqs()
1304 if (nvec < 0) { in mana_gd_setup_irqs()
1306 return nvec; in mana_gd_setup_irqs()
1308 if (nvec <= num_online_cpus()) in mana_gd_setup_irqs()
1311 irqs = kmalloc_array((nvec - start_irq_index), sizeof(int), GFP_KERNEL); in mana_gd_setup_irqs()
1317 gc->irq_contexts = kcalloc(nvec, sizeof(struct gdma_irq_context), in mana_gd_setup_irqs()
1324 for (i = 0; i < nvec; i++) { in mana_gd_setup_irqs()
1371 err = irq_setup(irqs, (nvec - start_irq_index), gc->numa_node); in mana_gd_setup_irqs()
1375 gc->max_num_msix = nvec; in mana_gd_setup_irqs()
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