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/Linux-v5.15/drivers/net/ethernet/pensando/ionic/
Dionic_bus_pci.c50 struct ionic_dev_bar *bars; in ionic_map_bars() local
53 bars = ionic->bars; in ionic_map_bars()
59 bars[j].len = pci_resource_len(pdev, i); in ionic_map_bars()
63 bars[j].vaddr = NULL; in ionic_map_bars()
65 bars[j].vaddr = pci_iomap(pdev, i, bars[j].len); in ionic_map_bars()
66 if (!bars[j].vaddr) { in ionic_map_bars()
74 bars[j].bus_addr = pci_resource_start(pdev, i); in ionic_map_bars()
75 bars[j].res_index = i; in ionic_map_bars()
85 struct ionic_dev_bar *bars = ionic->bars; in ionic_unmap_bars() local
89 if (bars[i].vaddr) { in ionic_unmap_bars()
[all …]
/Linux-v5.15/Documentation/powerpc/
Dpci_iov_resource_on_powernv.rst107 scheme where individual function BARs can be "grouped" to fit in one or
127 for large BARs in 64-bit space:
156 PE" mode to overlay over specific BARs to work around some of that, for
157 example for devices with very large BARs, e.g., GPUs. It would make
170 PCI devices, but the BARs in VF config space headers are unusual. For
171 a non-VF device, software uses BARs in the config space header to
174 discover sizes and assign addresses. The BARs in the VF's config space
178 base address for all the corresponding VF(n) BARs. For example, if the
190 window with 1MB segments. VF BARs that are 1MB or larger could be
193 flexible, but it works best when all the VF BARs are the same size. If
[all …]
/Linux-v5.15/drivers/misc/habanalabs/common/pci/
Dpci.c21 * hl_pci_bars_map() - Map PCI BARs.
43 bar = i * 2; /* 64-bit BARs */ in hl_pci_bars_map()
59 bar = i * 2; /* 64-bit BARs */ in hl_pci_bars_map()
70 * hl_pci_bars_unmap() - Unmap PCI BARS.
73 * Release all PCI BARs and unmap their virtual addresses.
81 bar = i * 2; /* 64-bit BARs */ in hl_pci_bars_unmap()
392 * Set DMA masks, initialize the PCI controller and map the PCI BARs.
414 dev_err(hdev->dev, "Failed to initialize PCI BARs\n"); in hl_pci_init()
456 * Unmap PCI bars and disable PCI device.
/Linux-v5.15/arch/s390/pci/
Dpci.c299 idx = zdev->bars[bar].map_idx; in pci_iomap_range_fh()
318 iova = ioremap((unsigned long) zdev->bars[bar].mio_wt, barsize); in pci_iomap_range_mio()
348 iova = ioremap((unsigned long) zdev->bars[bar].mio_wb, barsize); in pci_iomap_wc_range_mio()
433 (resource_size_t __force) zdev->bars[i].mio_wt; in zpci_map_resources()
516 if (!zdev->bars[i].size) in zpci_setup_bus_resources()
521 zdev->bars[i].map_idx = entry; in zpci_setup_bus_resources()
525 if (zdev->bars[i].val & 8) in zpci_setup_bus_resources()
527 if (zdev->bars[i].val & 4) in zpci_setup_bus_resources()
531 addr = (unsigned long) zdev->bars[i].mio_wt; in zpci_setup_bus_resources()
534 size = 1UL << zdev->bars[i].size; in zpci_setup_bus_resources()
[all …]
/Linux-v5.15/drivers/mfd/
Dsta2x11-mfd.c520 struct sta2x11_mfd_bar_setup_data bars[2]; member
529 .bars = {
542 .bars = {
559 for (i = 0; i < ARRAY_SIZE(sd->bars); i++) in sta2x11_mfd_setup()
560 for (j = 0; j < sd->bars[i].ncells; j++) { in sta2x11_mfd_setup()
561 sd->bars[i].cells[j].pdata_size = sizeof(pdev); in sta2x11_mfd_setup()
562 sd->bars[i].cells[j].platform_data = &pdev; in sta2x11_mfd_setup()
595 /* Just 2 bars for all mfd's at present */ in sta2x11_mfd_probe()
598 setup_data->bars[i].cells, in sta2x11_mfd_probe()
599 setup_data->bars[i].ncells, in sta2x11_mfd_probe()
/Linux-v5.15/drivers/scsi/csiostor/
Dcsio_init.c185 * @bars: Bitmask of bars to be requested.
191 csio_pci_init(struct pci_dev *pdev, int *bars) in csio_pci_init() argument
195 *bars = pci_select_bars(pdev, IORESOURCE_MEM); in csio_pci_init()
200 if (pci_request_selected_regions(pdev, *bars, KBUILD_MODNAME)) in csio_pci_init()
218 pci_release_selected_regions(pdev, *bars); in csio_pci_init()
229 * @bars: Bars to be released.
233 csio_pci_exit(struct pci_dev *pdev, int *bars) in csio_pci_exit() argument
235 pci_release_selected_regions(pdev, *bars); in csio_pci_exit()
513 * Allocates HW structure, DMA, memory resources, maps BARS to
930 * - Allocates HW structure, DMA, memory resources, maps BARS to
[all …]
/Linux-v5.15/arch/powerpc/platforms/powernv/
Dpci-sriov.c24 * For conventional PCI devices this isn't really an issue since PCI device BARs
32 * allocate the SR-IOV BARs in a way that lets us map them using the MBT.
48 * (num-vfs * num-sriov-bars) in total. To use a) we need the size of each segment
59 * At this point the device has been probed and the device's BARs are sized,
60 * but no resource allocations have been done. The SR-IOV BARs are sized
66 * sorts the BARs on a bus by their required alignment, which is calculated
112 * it only usable for devices with very large per-VF BARs. Such devices are
126 * us to support SR-IOV BARs in the 32bit MMIO window. This is useful since
218 /* Save ourselves some MMIO space by disabling the unusable BARs */ in pnv_pci_ioda_fixup_iov_resources()
264 * BARs would not be placed in the correct PE. in pnv_pci_iov_resource_alignment()
[all …]
Dpci.h234 /* Did we map the VF BAR with single-PE IODA BARs? */
246 * SR-IOV BARs for this device.
251 * If we map the SR-IOV BARs with a segmented window then
/Linux-v5.15/drivers/net/ethernet/netronome/nfp/nfpcore/
Dnfp6000_pcie.c10 * Multiplexes the NFP BARs between NFP internal resources and
13 * The BARs are managed with refcounts and are allocated/acquired
109 /* The number of explicit BARs to reserve.
151 int bars; member
352 /* We don't match explicit bars through the area interface */ in matching_bar()
377 for (n = 0; n < nfp->bars; n++) { in find_matching_bar()
395 for (n = 0; n < nfp->bars; n++) { in find_unused_bar_noblock()
524 /* Map all PCI bars and fetch the actual BAR configurations from the
569 snprintf(status_msg, sizeof(status_msg) - 1, "RESERVED BARs: "); in enable_bars()
578 /* Skip over BARs that are not IORESOURCE_MEM */ in enable_bars()
[all …]
/Linux-v5.15/lib/
Ddevres.c428 * pcim_iomap_regions - Request and iomap PCI BARs
430 * @mask: Mask of BARs to request and iomap
481 * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones
483 * @mask: Mask of BARs to iomap
486 * Request all PCI BARs and iomap regions specified by @mask.
506 * pcim_iounmap_regions - Unmap and release PCI BARs
508 * @mask: Mask of BARs to unmap and release
/Linux-v5.15/drivers/ntb/hw/idt/
DKconfig18 and SWPORTxCTL registers). Then all NT-function BARs must be enabled
19 with chosen valid aperture. For memory windows related BARs the
Dntb_hw_idt.h972 * @IDT_BAR_CNT: Number of BARs of each port
1184 * @bars: BARs related registers
1188 struct idt_ntb_bar bars[IDT_BAR_CNT]; member
1201 * @bars: BARs related registers
1211 struct idt_ntb_bar bars[IDT_BAR_CNT]; member
/Linux-v5.15/drivers/infiniband/hw/efa/
Defa_main.c138 int bars; in efa_request_doorbell_bar() local
142 bars = pci_select_bars(pdev, IORESOURCE_MEM) & BIT(db_bar_idx); in efa_request_doorbell_bar()
144 err = pci_request_selected_regions(pdev, bars, DRV_MODULE_NAME); in efa_request_doorbell_bar()
401 int bars; in efa_probe_device() local
425 bars = pci_select_bars(pdev, IORESOURCE_MEM) & EFA_BASE_BAR_MASK; in efa_probe_device()
426 err = pci_request_selected_regions(pdev, bars, DRV_MODULE_NAME); in efa_probe_device()
/Linux-v5.15/Documentation/PCI/endpoint/
Dpci-ntb-function.rst12 machine, expose memory ranges as BARs, and perform DMA. They also support
230 one is permitted. All these regions should be mapped to BARs for hosts to
248 be enough BARs for all the regions in a platform that supports only 64-bit
249 BARs.
252 packed and mapped to BARs in a way that provides NTB functionality and
269 With this scheme, for the basic NTB functionality 3 BARs should be sufficient.
339 space. Allocating and configuring BARs for doorbell and memory window1
348 is mapped to separate BARs.
/Linux-v5.15/Documentation/devicetree/bindings/i2c/
Di2c-pxa-pci-ce4100.txt5 PCI device has three PCI-bars, each bar contains a complete I2C
20 1:1 mapped to the BARs, and the second is the
/Linux-v5.15/arch/sparc/kernel/
Dleon_pci_grpci2.c29 * - barcfgs : Custom Configuration of Host's 6 target BARs
77 unsigned int bars[6]; /* 0x20 read-only PCI BARs */ member
603 /* Setup the Host's PCI Target BARs for other peripherals to access, in grpci2_hw_init()
604 * and do DMA to the host's memory. The target BARs can be sized and in grpci2_hw_init()
607 * User may set custom target BARs, but default is: in grpci2_hw_init()
608 * The first BARs is used to map kernel low (DMA is part of normal in grpci2_hw_init()
610 * PCI bus, the other BARs are disabled. We assume that the first BAR in grpci2_hw_init()
615 /* Target BARs must have the proper alignment */ in grpci2_hw_init()
/Linux-v5.15/drivers/pci/
Dsetup-res.c34 /* Per SR-IOV spec 3.4.1.11, VF BARs are RO zero */ in pci_std_update_resource()
39 * Ignore resources for unimplemented BARs and unused resource slots in pci_std_update_resource()
40 * for 64 bit BARs. in pci_std_update_resource()
74 * Apparently some Matrox devices have ROM BARs that read in pci_std_update_resource()
75 * as zero when disabled, so don't update ROM BARs unless in pci_std_update_resource()
Dpci.c784 * Goes over standard PCI resources (BARs) and checks if the given resource
962 * @dev: PCI device to have its BARs restored
1140 * restore at least the BARs so that the device will be in pci_raw_set_power_state()
1648 /* Restore BARs before the command register. */ in pci_restore_config_space()
1831 int __weak pcibios_enable_device(struct pci_dev *dev, int bars) in pcibios_enable_device() argument
1833 return pci_enable_resources(dev, bars); in pcibios_enable_device()
1836 static int do_pci_enable_device(struct pci_dev *dev, int bars) in do_pci_enable_device() argument
1851 err = pcibios_enable_device(dev, bars); in do_pci_enable_device()
1911 int i, bars = 0; in pci_enable_device_flags() local
1931 bars |= (1 << i); in pci_enable_device_flags()
[all …]
DKconfig87 re-allocate PCI resources if SR-IOV BARs have not been allocated by
170 BARs that are exposed in other devices that are the part of
/Linux-v5.15/drivers/fpga/
Ddfl-pci.c142 int dfl_res_off, i, bars, voff = 0; in find_dfls_by_vsec() local
174 for (i = 0, bars = 0; i < dfl_cnt; i++, dfl_res_off += sizeof(u32)) { in find_dfls_by_vsec()
185 if (bars & BIT(bir)) { in find_dfls_by_vsec()
191 bars |= BIT(bir); in find_dfls_by_vsec()
/Linux-v5.15/drivers/pci/endpoint/functions/
Dpci-epf-ntb.c223 * BAR_MW4 for rest of the BARs of epf_ntb_epc that is connected to HOST1. This
231 * mapped to a single BAR (BAR2) above for 32-bit BARs. The exact BAR that's
726 * other BARs for peer scratchpad (because of 64-bit BARs or reserved BARs).
771 * other BARs for peer scratchpad (because of 64-bit BARs or reserved BARs).
842 * the default self scratchpad BAR, an NTB could have other BARs for self
843 * scratchpad (because of reserved BARs). This function can get the exact BAR
887 * NTB could have other BARs for self scratchpad (because of reserved BARs).
1219 * Clear doorbell and memory BARs (remove inbound ATU configuration). In the above
1422 * epf_ntb_db_mw_bar_init() - Configure Doorbell and Memory window BARs
1631 * epf_ntb_init_epc_bar_interface() - Identify BARs to be used for each of
[all …]
/Linux-v5.15/drivers/gpu/drm/i915/gvt/
Dcfg_space.c242 struct intel_vgpu_pci_bar *bars = vgpu->cfg_space.bar; in emulate_pci_bar_write() local
255 size = ~(bars[INTEL_GVT_PCI_BAR_GTTMMIO].size -1); in emulate_pci_bar_write()
266 size = ~(bars[INTEL_GVT_PCI_BAR_APERTURE].size -1); in emulate_pci_bar_write()
272 /* Unimplemented BARs */ in emulate_pci_bar_write()
/Linux-v5.15/arch/arm/mach-iop32x/
Dhardware.h14 * 0x90000000. The PCI BARs must be programmed with physical addresses,
/Linux-v5.15/drivers/pci/hotplug/
Dibmphp_pci.c136 /* We need to do this in case some other BARs were properly inserted */ in ibmphp_configure_card()
149 /* We need to do this in case some other BARs were properly inserted */ in ibmphp_configure_card()
181 /* We need to do this in case some other BARs were properly inserted */ in ibmphp_configure_card()
250 /* We need to do this in case some other BARs were properly inserted */ in ibmphp_configure_card()
283 /* We need to do this in case some other BARs were properly inserted */ in ibmphp_configure_card()
325 * This function configures the pci BARs of a single device.
355 for (count = 0; address[count]; count++) { /* for 6 BARs */ in configure_device()
631 for (count = 0; address[count]; count++) { /* for 2 BARs */ in configure_bridge()
786 /* for 2 BARs */ in configure_bridge()
1025 for (i = 0; i < 2; i++) { /* for 2 BARs */ in configure_bridge()
[all …]
/Linux-v5.15/include/linux/
D8250_pci.h13 /* Use successive BARs (PCI base address registers),

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