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Searched refs:doorbell (Results 1 – 25 of 185) sorted by relevance

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/linux/drivers/gpu/drm/amd/amdgpu/
A Damdgpu_doorbell_mgr.c41 if (index < adev->doorbell.num_kernel_doorbells) in amdgpu_mm_rdoorbell()
42 return readl(adev->doorbell.cpu_addr + index); in amdgpu_mm_rdoorbell()
64 writel(v, adev->doorbell.cpu_addr + index); in amdgpu_mm_wdoorbell()
151 if (adev->doorbell.num_kernel_doorbells == 0) in amdgpu_doorbell_create_kernel_doorbells()
165 &adev->doorbell.kernel_doorbells, in amdgpu_doorbell_create_kernel_doorbells()
167 (void **)&adev->doorbell.cpu_addr); in amdgpu_doorbell_create_kernel_doorbells()
193 adev->doorbell.base = 0; in amdgpu_doorbell_init()
194 adev->doorbell.size = 0; in amdgpu_doorbell_init()
195 adev->doorbell.num_kernel_doorbells = 0; in amdgpu_doorbell_init()
208 adev->doorbell.num_kernel_doorbells = in amdgpu_doorbell_init()
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/linux/drivers/mailbox/
A Darm_mhu_db.c55 unsigned int doorbell; member
60 unsigned int doorbell) in mhu_db_mbox_to_channel() argument
68 chan_info->doorbell == doorbell) in mhu_db_mbox_to_channel()
97 unsigned int doorbell; in mhu_db_mbox_irq_to_channel() local
108 for (doorbell = 0; bits; doorbell++) { in mhu_db_mbox_irq_to_channel()
117 pchan, doorbell); in mhu_db_mbox_irq_to_channel()
193 unsigned int doorbell = spec->args[1]; in mhu_db_mbox_xlate() local
200 pchan, doorbell); in mhu_db_mbox_xlate()
208 pchan, doorbell); in mhu_db_mbox_xlate()
230 chan_info->doorbell = doorbell; in mhu_db_mbox_xlate()
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A Darm_mhuv3.c290 u32 doorbell; member
418 writel_relaxed(BIT(priv->doorbell), &mhu->mbx->dbcw[priv->ch_idx].clr); in mhuv3_doorbell_rx_complete()
428 BIT(priv->doorbell)); in mhuv3_doorbell_last_tx_done()
435 e->pending_db[priv->ch_idx] &= ~BIT(priv->doorbell); in mhuv3_doorbell_last_tx_done()
450 if (e->pending_db[priv->ch_idx] & BIT(priv->doorbell)) in mhuv3_doorbell_send_data()
453 e->pending_db[priv->ch_idx] |= BIT(priv->doorbell); in mhuv3_doorbell_send_data()
556 unsigned int doorbell) in mhuv3_dbe_mbox_of_xlate() argument
562 if (channel >= e->num_chans || doorbell >= MHUV3_FLAG_BITS) { in mhuv3_dbe_mbox_of_xlate()
564 channel, doorbell); in mhuv3_dbe_mbox_of_xlate()
568 return &chans[e->base_ch_idx + channel * MHUV3_FLAG_BITS + doorbell]; in mhuv3_dbe_mbox_of_xlate()
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A Darm_mhuv2.c235 u32 doorbell; member
265 writel_relaxed(BIT(priv->doorbell), in mhuv2_doorbell_rx_startup()
275 writel_relaxed(BIT(priv->doorbell), in mhuv2_doorbell_rx_shutdown()
283 writel_relaxed(BIT(priv->doorbell), in mhuv2_doorbell_read_data()
294 BIT(priv->doorbell)); in mhuv2_doorbell_last_tx_done()
306 writel_relaxed(BIT(priv->doorbell), in mhuv2_doorbell_send_data()
803 doorbell = pa->args[1]; in mhuv2_mbox_of_xlate()
804 if (doorbell >= MHUV2_STAT_BITS) in mhuv2_mbox_of_xlate()
819 if (doorbell) in mhuv2_mbox_of_xlate()
832 pa->args[0], doorbell); in mhuv2_mbox_of_xlate()
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/linux/drivers/accel/qaic/
A Dmhi_controller.c33 .doorbell = MHI_DB_BRST_DISABLE,
49 .doorbell = MHI_DB_BRST_DISABLE,
65 .doorbell = MHI_DB_BRST_DISABLE,
81 .doorbell = MHI_DB_BRST_DISABLE,
97 .doorbell = MHI_DB_BRST_DISABLE,
113 .doorbell = MHI_DB_BRST_DISABLE,
129 .doorbell = MHI_DB_BRST_DISABLE,
145 .doorbell = MHI_DB_BRST_DISABLE,
161 .doorbell = MHI_DB_BRST_DISABLE,
177 .doorbell = MHI_DB_BRST_DISABLE,
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/linux/drivers/fpga/
A Dintel-m10-bmc-sec-update.c276 u32 doorbell; in m10bmc_sec_n3000_rsu_status() local
279 ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); in m10bmc_sec_n3000_rsu_status()
344 u32 doorbell; in rsu_check_idle() local
347 ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); in rsu_check_idle()
416 u32 doorbell, progress; in rsu_prog_ready() local
419 ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); in rsu_prog_ready()
429 ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); in rsu_prog_ready()
508 u32 doorbell; in rsu_cancel() local
511 ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); in rsu_cancel()
590 ret = m10bmc_sys_read(m10bmc, csr_map->doorbell, &doorbell); in m10bmc_sec_fw_write()
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/linux/Documentation/devicetree/bindings/mailbox/
A Darm,mhu.yaml21 The MHU hardware also allows operations in doorbell mode. The MHU drives the
28 interrupt. Each of the 32-bits can be used as "doorbell" to alert the remote
38 - arm,mhu-doorbell
52 - const: arm,mhu-doorbell
76 Set to 2 in doorbell mode and represents index of the channel and doorbell
129 compatible = "arm,mhu-doorbell", "arm,primecell";
142 mboxes = <&mhuB 0 0>, /* LP-NonSecure, 1st doorbell */
143 <&mhuB 0 1>; /* LP-NonSecure, 2nd doorbell */
160 mboxes = <&mhuB 1 2>, /* HP-NonSecure, 3rd doorbell */
161 <&mhuB 1 3>; /* HP-NonSecure, 4th doorbell */
A Darm,mhuv2.yaml38 and the entire window shall be used in doorbell protocol. Optionally, data
97 for doorbell protocol, and 1 is reserved for data-transfer protocol.
102 doorbell protocol this field signifies the number of 32-bit channel
103 windows that implement the doorbell protocol. For data-transfer protocol,
119 windows are used in doorbell protocol (64 doorbells), followed by 1, 5 and
135 doorbell, or data-transfer protocol, and the second argument (only
136 relevant in doorbell protocol, should be 0 otherwise) represents the
137 doorbell number within the 32 bit wide channel window.
142 mboxes = <&mhu 0 5>; // Channel Window Group 0, doorbell 5.
143 mboxes = <&mhu 1 7>; // Channel Window Group 1, doorbell 7.
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A Dnvidia,tegra186-hsp.yaml38 For doorbells, the second cell specifies the index of the doorbell to
85 - const: doorbell
88 - const: doorbell
118 interrupt-names = "doorbell";
/linux/drivers/scsi/esas2r/
A Desas2r_int.c59 u32 doorbell; in esas2r_polled_interrupt() local
77 if (doorbell != 0) in esas2r_polled_interrupt()
107 u32 doorbell; in esas2r_adapter_interrupt() local
119 if (doorbell != 0) in esas2r_adapter_interrupt()
135 u32 doorbell; in esas2r_msi_interrupt() local
151 if (doorbell != 0) in esas2r_msi_interrupt()
667 if (!(doorbell & DRBL_FORCE_INT)) { in esas2r_doorbell_interrupt()
675 if (doorbell & DRBL_RESET_BUS) in esas2r_doorbell_interrupt()
678 if (doorbell & DRBL_FORCE_INT) in esas2r_doorbell_interrupt()
686 if (doorbell & DRBL_FW_RESET) { in esas2r_doorbell_interrupt()
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A Desas2r_init.c939 u32 doorbell; in esas2r_check_adapter() local
966 if (doorbell == 0xFFFFFFFF) { in esas2r_check_adapter()
982 doorbell); in esas2r_check_adapter()
1020 doorbell); in esas2r_check_adapter()
1109 doorbell); in esas2r_check_adapter()
1129 if (doorbell & DRBL_POWER_DOWN) in esas2r_check_adapter()
1506 u32 doorbell; in esas2r_power_down_notify_firmware() local
1515 doorbell); in esas2r_power_down_notify_firmware()
1539 u32 doorbell; in esas2r_power_down() local
1556 doorbell = in esas2r_power_down()
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/linux/drivers/gpu/drm/radeon/
A Dradeon_device.c344 rdev->doorbell.num_doorbells = min_t(u32, rdev->doorbell.size / sizeof(u32), RADEON_MAX_DOORBELLS); in radeon_doorbell_init()
345 if (rdev->doorbell.num_doorbells == 0) in radeon_doorbell_init()
348 rdev->doorbell.ptr = ioremap(rdev->doorbell.base, rdev->doorbell.num_doorbells * sizeof(u32)); in radeon_doorbell_init()
349 if (rdev->doorbell.ptr == NULL) { in radeon_doorbell_init()
355 memset(&rdev->doorbell.used, 0, sizeof(rdev->doorbell.used)); in radeon_doorbell_init()
369 iounmap(rdev->doorbell.ptr); in radeon_doorbell_fini()
370 rdev->doorbell.ptr = NULL; in radeon_doorbell_fini()
384 unsigned long offset = find_first_zero_bit(rdev->doorbell.used, rdev->doorbell.num_doorbells); in radeon_doorbell_get()
387 *doorbell = offset; in radeon_doorbell_get()
404 if (doorbell < rdev->doorbell.num_doorbells) in radeon_doorbell_free()
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/linux/drivers/cpufreq/
A Dpcc-cpufreq.c98 static struct acpi_generic_address doorbell; variable
124 acpi_read(&doorbell_value, &doorbell); in pcc_cmd()
126 &doorbell); in pcc_cmd()
488 doorbell.space_id = reg_resource->space_id; in pcc_cpufreq_evaluate()
489 doorbell.bit_width = reg_resource->bit_width; in pcc_cpufreq_evaluate()
490 doorbell.bit_offset = reg_resource->bit_offset; in pcc_cpufreq_evaluate()
491 doorbell.access_width = 4; in pcc_cpufreq_evaluate()
492 doorbell.address = reg_resource->address; in pcc_cpufreq_evaluate()
496 doorbell.space_id, doorbell.bit_width, doorbell.bit_offset, in pcc_cpufreq_evaluate()
497 doorbell.access_width, reg_resource->address); in pcc_cpufreq_evaluate()
/linux/include/linux/mlx4/
A Dcq.h151 __be32 doorbell[2]; in mlx4_cq_arm() local
166 doorbell[0] = cpu_to_be32(sn << 28 | cmd | cq->cqn); in mlx4_cq_arm()
167 doorbell[1] = cpu_to_be32(ci); in mlx4_cq_arm()
169 mlx4_write64(doorbell, uar_page + MLX4_CQ_DOORBELL, doorbell_lock); in mlx4_cq_arm()
/linux/Documentation/driver-api/
A Dntb.rst7 fabric. Existing NTB hardware supports a common feature set: doorbell
146 round before writing the peer doorbell register.
154 * delay\_ms - Specify the delay between receiving a doorbell
155 interrupt event and setting the peer doorbell register for the next
158 series begins once all the doorbell bits have been shifted out of
168 NTB doorbell, and reading and writing scratchpads.
179 This file is used to read, set, and clear the local doorbell. Not
182 set (eg: `echo 's 0x0101' > db`). To clear the doorbell, write `c`
185 This file is used to read, set, and clear the local doorbell mask.
188 This file is used to read, set, and clear the peer doorbell.
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/linux/include/linux/mlx5/
A Dcq.h156 __be32 doorbell[2]; in mlx5_cq_arm() local
170 doorbell[0] = cpu_to_be32(sn << 28 | cmd | ci); in mlx5_cq_arm()
171 doorbell[1] = cpu_to_be32(cq->cqn); in mlx5_cq_arm()
173 mlx5_write64(doorbell, uar_page + MLX5_CQ_DOORBELL); in mlx5_cq_arm()
/linux/drivers/infiniband/hw/mana/
A Dcq.c19 u32 doorbell; in mana_ib_create_cq() local
53 doorbell = mana_ucontext->doorbell; in mana_ib_create_cq()
56 err = mana_ib_gd_create_cq(mdev, cq, doorbell); in mana_ib_create_cq()
/linux/arch/mips/include/asm/octeon/
A Dcvmx-pko-defs.h797 uint64_t doorbell:20; member
809 uint64_t doorbell:20;
817 uint64_t doorbell:20; member
1817 uint64_t doorbell:1; member
1821 uint64_t doorbell:1;
1830 uint64_t doorbell:1; member
1834 uint64_t doorbell:1;
1842 uint64_t doorbell:1; member
1846 uint64_t doorbell:1;
1961 uint64_t doorbell:1; member
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A Dcvmx-pko.h120 uint64_t doorbell; member
606 status->doorbell = debug9.cn38xx.doorbell; in cvmx_pko_get_port_status()
612 status->doorbell = debug8.cn50xx.doorbell; in cvmx_pko_get_port_status()
/linux/drivers/usb/host/
A Dxhci-trace.h548 TP_PROTO(u32 slot, u32 doorbell),
549 TP_ARGS(slot, doorbell),
552 __field(u32, doorbell)
556 __entry->doorbell = doorbell;
559 xhci_decode_doorbell(__get_buf(XHCI_MSG_MAX), __entry->slot, __entry->doorbell)
564 TP_PROTO(u32 slot, u32 doorbell),
565 TP_ARGS(slot, doorbell)
569 TP_PROTO(u32 slot, u32 doorbell),
570 TP_ARGS(slot, doorbell)
/linux/Documentation/PCI/endpoint/
A Dpci-ntb-function.rst113 CMD_CONFIGURE_DOORBELL (0x1): Command to configure doorbell. Before
155 same BAR. The initial portion of the region will have doorbell
178 in order to raise doorbell. EPF NTB can use either MSI or MSI-X to
179 ring doorbell (MSI-X support will be added later). MSI uses same
192 will ensure there is no difference while raising the doorbell.
198 for raising doorbell interrupt. This will be populated by EPF NTB
228 scratchpad, doorbell, one or more memory windows) to be modeled to achieve
335 Above diagram shows how the doorbell and memory window 1 is mapped so that
336 HOST1 can raise doorbell interrupt on HOST2 and also how HOST1 can access
337 buffers exposed by HOST2 using memory window1 (MW1). Here doorbell and
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/linux/drivers/irqchip/
A Dirq-loongson-pch-msi.c25 phys_addr_t doorbell; member
66 msg->address_hi = upper_32_bits(priv->doorbell); in pch_msi_compose_msi_msg()
67 msg->address_lo = lower_32_bits(priv->doorbell); in pch_msi_compose_msi_msg()
190 priv->doorbell = msg_address; in pch_msi_init()
/linux/Documentation/devicetree/bindings/powerpc/fsl/
A Dsrio-rmu.txt23 and doorbell units.
33 (msg-unit, doorbell, port-write).
54 and doorbell units.
84 and doorbell units.
114 and doorbell units.
151 doorbell-unit@400 {
/linux/include/linux/mfd/
A Dintel-m10-bmc.h99 #define rsu_prog(doorbell) FIELD_GET(DRBL_RSU_PROGRESS, doorbell) argument
196 unsigned int doorbell; member
/linux/drivers/ufs/core/
A Dufs_trace.h272 unsigned int tag, u32 doorbell, u32 hwq_id, int transfer_len,
275 TP_ARGS(sdev, str_t, tag, doorbell, hwq_id, transfer_len, intr, lba,
282 __field(u32, doorbell)
295 __entry->doorbell = doorbell;
308 __entry->doorbell, __entry->transfer_len, __entry->intr,

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