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/linux/drivers/gpu/drm/nouveau/nvkm/subdev/bar/
H A Dbase.c27 nvkm_bar_flush(struct nvkm_bar *bar) in nvkm_bar_flush() argument
29 if (bar && bar->func->flush) in nvkm_bar_flush()
30 bar->func->flush(bar); in nvkm_bar_flush()
36 return device->bar->func->bar1.vmm(device->bar); in nvkm_bar_bar1_vmm()
42 struct nvkm_bar *bar = device->bar; in nvkm_bar_bar1_reset() local
43 if (bar) { in nvkm_bar_bar1_reset()
44 bar->func->bar1.init(bar); in nvkm_bar_bar1_reset()
45 bar->func->bar1.wait(bar); in nvkm_bar_bar1_reset()
55 struct nvkm_bar *bar = device->bar; in nvkm_bar_bar2_vmm() local
56 if (bar && bar->bar2) in nvkm_bar_bar2_vmm()
[all …]
H A Dnv50.c34 struct nv50_bar *bar = nv50_bar(base); in nv50_bar_flush() local
35 struct nvkm_device *device = bar->base.subdev.device; in nv50_bar_flush()
37 spin_lock_irqsave(&bar->base.lock, flags); in nv50_bar_flush()
43 spin_unlock_irqrestore(&bar->base.lock, flags); in nv50_bar_flush()
59 nv50_bar_bar1_fini(struct nvkm_bar *bar) in nv50_bar_bar1_fini() argument
61 nvkm_wr32(bar->subdev.device, 0x001708, 0x00000000); in nv50_bar_bar1_fini()
68 struct nv50_bar *bar = nv50_bar(base); in nv50_bar_bar1_init() local
69 nvkm_wr32(device, 0x001708, 0x80000000 | bar->bar1->node->offset >> 4); in nv50_bar_bar1_init()
79 nv50_bar_bar2_fini(struct nvkm_bar *bar) in nv50_bar_bar2_fini() argument
81 nvkm_wr32(bar->subdev.device, 0x00170c, 0x00000000); in nv50_bar_bar2_fini()
[all …]
H A Dgf100.c34 return gf100_bar(base)->bar[1].vmm; in gf100_bar_bar1_vmm()
46 gf100_bar_bar1_fini(struct nvkm_bar *bar) in gf100_bar_bar1_fini() argument
48 nvkm_mask(bar->subdev.device, 0x001704, 0x80000000, 0x00000000); in gf100_bar_bar1_fini()
55 struct gf100_bar *bar = gf100_bar(base); in gf100_bar_bar1_init() local
56 const u32 addr = nvkm_memory_addr(bar->bar[1].inst) >> 12; in gf100_bar_bar1_init()
63 return gf100_bar(base)->bar[0].vmm; in gf100_bar_bar2_vmm()
67 gf100_bar_bar2_fini(struct nvkm_bar *bar) in gf100_bar_bar2_fini() argument
69 nvkm_mask(bar->subdev.device, 0x001714, 0x80000000, 0x00000000); in gf100_bar_bar2_fini()
76 struct gf100_bar *bar = gf100_bar(base); in gf100_bar_bar2_init() local
77 u32 addr = nvkm_memory_addr(bar->bar[0].inst) >> 12; in gf100_bar_bar2_init()
[all …]
H A Dtu102.c29 tu102_bar_bar2_wait(struct nvkm_bar *bar) in tu102_bar_bar2_wait() argument
31 struct nvkm_device *device = bar->subdev.device; in tu102_bar_bar2_wait()
39 tu102_bar_bar2_fini(struct nvkm_bar *bar) in tu102_bar_bar2_fini() argument
41 nvkm_mask(bar->subdev.device, 0xb80f48, 0x80000000, 0x00000000); in tu102_bar_bar2_fini()
48 struct gf100_bar *bar = gf100_bar(base); in tu102_bar_bar2_init() local
49 u32 addr = nvkm_memory_addr(bar->bar[0].inst) >> 12; in tu102_bar_bar2_init()
50 if (bar->bar2_halve) in tu102_bar_bar2_init()
56 tu102_bar_bar1_wait(struct nvkm_bar *bar) in tu102_bar_bar1_wait() argument
58 struct nvkm_device *device = bar->subdev.device; in tu102_bar_bar1_wait()
66 tu102_bar_bar1_fini(struct nvkm_bar *bar) in tu102_bar_bar1_fini() argument
[all …]
/linux/drivers/net/ethernet/netronome/nfp/nfpcore/
H A Dnfp6000_pcie.c15 * abstraction builds upon this BAR interface.
98 #define NFP_PCIE_P2C_FIXED_SIZE(bar) (1 << (bar)->bitsize) argument
99 #define NFP_PCIE_P2C_BULK_SIZE(bar) (1 << (bar)->bitsize) argument
100 #define NFP_PCIE_P2C_GENERAL_TARGET_OFFSET(bar, x) ((x) << ((bar)->bitsize - 2)) argument
101 #define NFP_PCIE_P2C_GENERAL_TOKEN_OFFSET(bar, x) ((x) << ((bar)->bitsize - 4)) argument
102 #define NFP_PCIE_P2C_GENERAL_SIZE(bar) (1 << ((bar)->bitsize - 4)) argument
116 * struct nfp_bar - describes BAR configuration and usage
118 * @barcfg: cached contents of BAR config CSR
119 * @base: the BAR's base CPP offset
120 * @mask: mask for the BAR aperture (read only)
[all …]
/linux/drivers/pci/
H A Drebar.c3 * PCI Resizable BAR Extended Capability handling.
22 * pci_rebar_bytes_to_size - Convert size in bytes to PCI BAR Size
25 * Convert size in bytes to encoded BAR Size in Resizable BAR Capability
28 * Return: encoded BAR Size as defined in the PCIe spec (0=1MB, 31=128TB)
41 * pci_rebar_size_to_bytes - Convert encoded BAR Size to size in bytes
42 * @size: encoded BAR Size as defined in the PCIe spec (0=1MB, 31=128TB)
44 * Return: BAR size in bytes
58 * pci_rebar_find_pos - find position of resize control reg for BAR
60 * @bar: BAR to find
62 * Helper to find the position of the control register for a BAR.
[all …]
H A Diomap.c15 * pci_iomap_range - create a virtual mapping cookie for a PCI BAR
16 * @dev: PCI device that owns the BAR
17 * @bar: BAR number
18 * @offset: map memory at the given offset in BAR
21 * Using this function you will get a __iomem address to your device BAR.
27 * the complete BAR from offset to the end, pass %0 here.
30 int bar, in pci_iomap_range() argument
37 if (!pci_bar_index_is_valid(bar)) in pci_iomap_range()
40 start = pci_resource_start(dev, bar); in pci_iomap_range()
41 len = pci_resource_len(dev, bar); in pci_iomap_range()
[all …]
/linux/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/
H A Dbar.c22 #include <subdev/bar/gf100.h>
30 #include "nvrm/bar.h"
34 r535_bar_flush(struct nvkm_bar *bar) in r535_bar_flush() argument
39 if (unlikely(!bar->bar2)) { in r535_bar_flush()
40 g84_bar_flush(bar); in r535_bar_flush()
44 ioread32_native(bar->flushBAR2); in r535_bar_flush()
69 r535_bar_bar2_fini(struct nvkm_bar *bar) in r535_bar_bar2_fini() argument
71 struct nvkm_vmm *vmm = gf100_bar(bar)->bar[0].vmm; in r535_bar_bar2_fini()
72 struct nvkm_gsp *gsp = bar->subdev.device->gsp; in r535_bar_bar2_fini()
74 bar->flushBAR2 = bar->flushBAR2PhysMode; in r535_bar_bar2_fini()
[all …]
/linux/drivers/pci/endpoint/
H A Dpci-epf-core.c213 enum pci_barno bar, in pci_epf_get_required_bar_size() argument
217 u64 bar_fixed_size = epc_features->bar[bar].fixed_size; in pci_epf_get_required_bar_size()
224 /* According to PCIe base spec, min size for a resizable BAR is 1 MB. */ in pci_epf_get_required_bar_size()
225 if (epc_features->bar[bar].type == BAR_RESIZABLE && size < SZ_1M) in pci_epf_get_required_bar_size()
228 if (epc_features->bar[bar].type == BAR_FIXED && bar_fixed_size) { in pci_epf_get_required_bar_size()
231 "requested BAR size is larger than fixed size\n"); in pci_epf_get_required_bar_size()
236 /* BAR size must be power of two */ in pci_epf_get_required_bar_size()
243 * The EPC's BAR start address must meet alignment requirements. In most in pci_epf_get_required_bar_size()
244 * cases, the alignment will match the BAR size. However, differences in pci_epf_get_required_bar_size()
245 * can occur—for example, when the fixed BAR size (e.g., 128 bytes) is in pci_epf_get_required_bar_size()
[all …]
/linux/drivers/net/ethernet/sfc/
H A Def100.c37 unsigned int bar; member
71 u32 bar = ef100_pci_get_bar_bits(efx, entry_location, EF100_BAR); in ef100_pci_parse_ef100_entry() local
74 "Found EF100 function control window bar=%d offset=0x%llx\n", in ef100_pci_parse_ef100_entry()
75 bar, offset); in ef100_pci_parse_ef100_entry()
83 if (bar == ESE_GZ_CFGBAR_EF100_BAR_NUM_EXPANSION_ROM || in ef100_pci_parse_ef100_entry()
84 bar == ESE_GZ_CFGBAR_EF100_BAR_NUM_INVALID) { in ef100_pci_parse_ef100_entry()
86 "Bad BAR value of %d in Xilinx capabilities EF100 entry.\n", in ef100_pci_parse_ef100_entry()
87 bar); in ef100_pci_parse_ef100_entry()
91 result->bar = bar; in ef100_pci_parse_ef100_entry()
97 static bool ef100_pci_does_bar_overflow(struct efx_nic *efx, int bar, in ef100_pci_does_bar_overflow() argument
[all …]
/linux/tools/testing/selftests/bpf/prog_tests/
H A Dcgroup_attach_override.c8 #define BAR "/foo/bar/" macro
28 int drop_prog = -1, allow_prog = -1, foo = -1, bar = -1; in serial_test_cgroup_attach_override() local
55 bar = test__join_cgroup(BAR); in serial_test_cgroup_attach_override()
56 if (CHECK(bar < 0, "cgroup_join_bar", "cgroup setup failed\n")) in serial_test_cgroup_attach_override()
63 if (CHECK(bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS, in serial_test_cgroup_attach_override()
66 "attach prog to %s failed, errno=%d\n", BAR, errno)) in serial_test_cgroup_attach_override()
72 if (CHECK(bpf_prog_detach(bar, BPF_CGROUP_INET_EGRESS), in serial_test_cgroup_attach_override()
74 "detach prog from %s failed, errno=%d\n", BAR, errno)) in serial_test_cgroup_attach_override()
81 if (CHECK(bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS, in serial_test_cgroup_attach_override()
84 "attach prog to %s failed, errno=%d\n", BAR, errno)) in serial_test_cgroup_attach_override()
[all …]
H A Dlinked_list.c89 "but arg is at offset=0 in struct bar" },
296 id = btf__add_struct(btf, "bar", refcount_field ? 60 : 56); in list_and_rb_node_same_struct()
297 if (!ASSERT_GT(id, 0, "btf__add_struct bar")) in list_and_rb_node_same_struct()
300 if (!ASSERT_OK(err, "btf__add_field bar::a")) in list_and_rb_node_same_struct()
303 if (!ASSERT_OK(err, "btf__add_field bar::c")) in list_and_rb_node_same_struct()
307 if (!ASSERT_OK(err, "btf__add_field bar::ref")) in list_and_rb_node_same_struct()
320 id = btf__add_decl_tag(btf, "contains:bar:a", foo_btf_id, 0); in list_and_rb_node_same_struct()
321 if (!ASSERT_GT(id, 0, "btf__add_decl_tag contains:bar:a")) in list_and_rb_node_same_struct()
442 id = btf__add_decl_tag(btf, "contains:bar:bar", 5, 1); in test_btf()
443 if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:bar:bar")) in test_btf()
[all …]
/linux/drivers/pci/endpoint/functions/
H A Dpci-epf-test.c116 /* default BAR sizes, can be overridden by the user using configfs */
731 enum pci_barno bar; in pci_epf_test_enable_doorbell() local
740 bar = pci_epc_get_next_free_bar(epf_test->epc_features, epf_test->test_reg_bar + 1); in pci_epf_test_enable_doorbell()
741 if (bar < BAR_0) in pci_epf_test_enable_doorbell()
755 reg->doorbell_bar = cpu_to_le32(bar); in pci_epf_test_enable_doorbell()
758 ret = pci_epf_align_inbound_addr(epf, bar, ((u64)msg->address_hi << 32) | msg->address_lo, in pci_epf_test_enable_doorbell()
766 epf_test->db_bar.barno = bar; in pci_epf_test_enable_doorbell()
767 epf_test->db_bar.size = epf->bar[bar].size; in pci_epf_test_enable_doorbell()
768 epf_test->db_bar.flags = epf->bar[bar].flags; in pci_epf_test_enable_doorbell()
788 enum pci_barno bar = le32_to_cpu(reg->doorbell_bar); in pci_epf_test_disable_doorbell() local
[all …]
/linux/samples/trace_events/
H A Dtrace-events-sample.h70 * Here it is trace_foo_bar(char *foo, int bar).
73 * Here it is simply "foo, bar".
94 * __field_struct(struct bar, foo)
96 * __entry->bar.x = y;
108 * memcpy(__entry->foo, bar, 10);
119 * __dynamic_array( int, foo, bar) is similar to: int foo[bar];
124 * memcpy(__get_dynamic_array(foo), bar, 10);
135 * __string(foo, bar) is similar to: strcpy(foo, bar)
175 * __string_len(foo, bar, len)
186 * memcpy(__get_str(foo), bar, len);
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/linux/drivers/pci/controller/dwc/
H A Dpcie-designware-ep.c40 enum pci_barno bar, int flags) in __dw_pcie_ep_reset_bar() argument
45 reg = PCI_BASE_ADDRESS_0 + (4 * bar); in __dw_pcie_ep_reset_bar()
57 * dw_pcie_ep_reset_bar - Reset endpoint BAR
59 * @bar: BAR number of the endpoint
61 void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar) in dw_pcie_ep_reset_bar() argument
68 __dw_pcie_ep_reset_bar(pci, func_no, bar, 0); in dw_pcie_ep_reset_bar()
110 /* BAR Match Mode inbound iATU mapping */
112 dma_addr_t parent_bus_addr, enum pci_barno bar, in dw_pcie_ep_ib_atu_bar() argument
123 if (!ep_func->bar_to_atu[bar]) in dw_pcie_ep_ib_atu_bar()
126 free_win = ep_func->bar_to_atu[bar] - 1; in dw_pcie_ep_ib_atu_bar()
[all …]
/linux/arch/powerpc/platforms/powernv/
H A Dpci-sriov.c15 * the PHB maps MMIO addresses to a specific PE using the "Memory BAR Table".
24 * For a SR-IOV BAR things are a little more awkward since size and alignment
25 * are not coupled. The alignment is set based on the per-VF BAR size, but
26 * the total BAR area is: number-of-vfs * per-vf-size. The number of VFs
28 * we need to finesse (read: hack) the Linux BAR allocator so that it will
33 * so as a baseline we can assume that we have the following BAR modes
38 * a) A segmented BAR that splits the mapped range into $PE_COUNT equally sized
40 * b) An un-segmented BAR that maps the whole address range to a specific PE.
43 * We prefer to use mode a) since it only requires one MBT entry per SR-IOV BAR
44 * For comparison b) requires one entry per-VF per-BAR, or:
[all …]
/linux/drivers/xen/xen-pciback/
H A Dconf_space_header.c129 struct pci_bar_info *bar = data; in rom_write() local
131 if (unlikely(!bar)) { in rom_write()
140 bar->which = 1; in rom_write()
144 if (tmpval != bar->val && value == bar->val) { in rom_write()
145 /* Allow restoration of bar value. */ in rom_write()
146 pci_write_config_dword(dev, offset, bar->val); in rom_write()
148 bar->which = 0; in rom_write()
162 struct pci_bar_info *bar = data; in bar_write() local
167 if (unlikely(!bar)) { in bar_write()
182 bar->which = 1; in bar_write()
[all …]
/linux/drivers/dma/dw-edma/
H A Ddw-edma-pcie.c28 .bar = a, \
34 enum pci_barno bar; member
57 .rg.bar = BAR_0,
62 /* Channel 0 - BAR 2, offset 0 Mbytes, size 2 Kbytes */
64 /* Channel 1 - BAR 2, offset 2 Mbytes, size 2 Kbytes */
68 /* Channel 0 - BAR 2, offset 4 Mbytes, size 2 Kbytes */
70 /* Channel 1 - BAR 2, offset 6 Mbytes, size 2 Kbytes */
75 /* Channel 0 - BAR 2, offset 8 Mbytes, size 2 Kbytes */
77 /* Channel 1 - BAR 2, offset 9 Mbytes, size 2 Kbytes */
81 /* Channel 0 - BAR 2, offset 10 Mbytes, size 2 Kbytes */
[all …]
/linux/tools/perf/Documentation/
H A Dcallchain-overhead-calculation.txt29 void bar(void) {
35 bar()
40 In this case 'foo' is a child of 'bar', and 'bar' is an immediate
42 'main' is a parent of 'foo' and 'bar', and 'bar' is a parent of 'foo'.
44 Suppose all samples are recorded in 'foo' and 'bar' only. When it's
54 bar
58 40.00% bar
60 --- bar
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/linux/drivers/vfio/pci/
H A Dvfio_pci_rdwr.c201 int vfio_pci_core_setup_barmap(struct vfio_pci_core_device *vdev, int bar) in vfio_pci_core_setup_barmap() argument
207 if (vdev->barmap[bar]) in vfio_pci_core_setup_barmap()
210 ret = pci_request_selected_regions(pdev, 1 << bar, "vfio"); in vfio_pci_core_setup_barmap()
214 io = pci_iomap(pdev, bar, 0); in vfio_pci_core_setup_barmap()
216 pci_release_selected_regions(pdev, 1 << bar); in vfio_pci_core_setup_barmap()
220 vdev->barmap[bar] = io; in vfio_pci_core_setup_barmap()
231 int bar = VFIO_PCI_OFFSET_TO_INDEX(*ppos); in vfio_pci_bar_rw() local
235 struct resource *res = &vdev->pdev->resource[bar]; in vfio_pci_bar_rw()
239 if (pci_resource_start(pdev, bar)) in vfio_pci_bar_rw()
240 end = pci_resource_len(pdev, bar); in vfio_pci_bar_rw()
[all …]
/linux/arch/csky/include/asm/
H A Dbarrier.h13 * bar.brwarws: ordering barrier for all load/store instructions
26 * bar.brw
27 * bar.br
28 * bar.bw
29 * bar.arw
30 * bar.ar
31 * bar.aw
32 * bar.brwarw
33 * bar.brarw
34 * bar.bwarw
[all …]
/linux/samples/rust/
H A Drust_driver_pci.rs27 type Bar0 = pci::Bar<{ Regs::END }>;
40 bar: Devres<Bar0>, field
55 fn testdev(index: &TestIndex, bar: &Bar0) -> Result<u32> { in testdev()
57 bar.write8(index.0, Regs::TEST); in testdev()
59 let offset = bar.read32(Regs::OFFSET) as usize; in testdev()
60 let data = bar.read8(Regs::DATA); in testdev()
65 bar.try_write8(data, offset)?; in testdev()
67 Ok(bar.read32(Regs::COUNT)) in testdev()
89 "pci-testdev config space read32 BAR 0: {:x}\n", in config_space()
114 bar <- pdev.iomap_region_sized::<{ Regs::END }>(0, c"rust_driver_pci"), in probe()
[all …]
/linux/arch/arm/mm/
H A Dpmsa-v8.c141 static int __init __pmsav8_setup_region(unsigned int number, u32 bar, u32 lar) in __pmsav8_setup_region() argument
150 prbar_write(bar); in __pmsav8_setup_region()
153 mpu_rgn_info.rgns[number].prbar = bar; in __pmsav8_setup_region()
163 u32 bar, lar; in pmsav8_setup_ram() local
168 bar = start; in pmsav8_setup_ram()
171 bar |= PMSAv8_AP_PL1RW_PL0RW | PMSAv8_RGN_SHARED; in pmsav8_setup_ram()
174 return __pmsav8_setup_region(number, bar, lar); in pmsav8_setup_ram()
179 u32 bar, lar; in pmsav8_setup_io() local
184 bar = start; in pmsav8_setup_io()
187 bar |= PMSAv8_AP_PL1RW_PL0RW | PMSAv8_RGN_SHARED | PMSAv8_BAR_XN; in pmsav8_setup_io()
[all …]
/linux/sound/soc/sof/
H A Dops.c46 bool snd_sof_dsp_update_bits_unlocked(struct snd_sof_dev *sdev, u32 bar, in snd_sof_pci_update_bits()
52 ret = snd_sof_dsp_read(sdev, bar, offset); in snd_sof_dsp_update_bits_unlocked()
60 snd_sof_dsp_write(sdev, bar, offset, new); in snd_sof_dsp_update_bits_unlocked()
66 bool snd_sof_dsp_update_bits64_unlocked(struct snd_sof_dev *sdev, u32 bar, in snd_sof_dsp_update_bits_unlocked()
71 old = snd_sof_dsp_read64(sdev, bar, offset); in snd_sof_dsp_update_bits64_unlocked() argument
78 snd_sof_dsp_write64(sdev, bar, offset, new); in snd_sof_dsp_update_bits64_unlocked()
85 bool snd_sof_dsp_update_bits(struct snd_sof_dev *sdev, u32 bar, u32 offset, in snd_sof_dsp_update_bits64_unlocked()
89 return snd_sof_dsp_update_bits_unlocked(sdev, bar, offset, mask, value);
93 bool snd_sof_dsp_update_bits64(struct snd_sof_dev *sdev, u32 bar, u32 offset, in snd_sof_dsp_update_bits()
97 return snd_sof_dsp_update_bits64_unlocked(sdev, bar, offse in snd_sof_dsp_update_bits()
51 snd_sof_dsp_update_bits_unlocked(struct snd_sof_dev * sdev,u32 bar,u32 offset,u32 mask,u32 value) snd_sof_dsp_update_bits_unlocked() argument
90 snd_sof_dsp_update_bits(struct snd_sof_dev * sdev,u32 bar,u32 offset,u32 mask,u32 value) snd_sof_dsp_update_bits() argument
104 snd_sof_dsp_update_bits64(struct snd_sof_dev * sdev,u32 bar,u32 offset,u64 mask,u64 value) snd_sof_dsp_update_bits64() argument
119 snd_sof_dsp_update_bits_forced_unlocked(struct snd_sof_dev * sdev,u32 bar,u32 offset,u32 mask,u32 value) snd_sof_dsp_update_bits_forced_unlocked() argument
134 snd_sof_dsp_update_bits_forced(struct snd_sof_dev * sdev,u32 bar,u32 offset,u32 mask,u32 value) snd_sof_dsp_update_bits_forced() argument
[all...]
/linux/Documentation/translations/zh_CN/admin-guide/
H A Dbootconfig.rst46 foo.bar.baz = value1
47 foo.bar.qux.quux = value2
51 foo.bar {
58 foo.bar { baz = value1; qux.quux = value2 }
68 foo = bar, baz
73 foo = bar, baz
81 foo = bar, baz
84 这样， ``foo`` 关键字就同时拥有了 ``bar`` ， ``baz`` 和 ``qux`` 。
90 foo.bar = value2
96 bar = value1
[all …]

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