| /openbmc/linux/drivers/gpu/drm/amd/amdkfd/ |
| H A D | kfd_doorbell.c | 31 * This extension supports a kernel level doorbells management for the
38 * The doorbells are intended to be written by applications as part
40 * We assign doorbells to applications in PAGE_SIZE-sized and aligned chunks.
46 * offsets (KFD_MMAP_DOORBELL_START-END) is used for doorbells.
74 /* Bitmap to dynamically allocate doorbells from kernel page */ in kfd_doorbell_init()
86 &kfd->doorbells, in kfd_doorbell_init()
90 pr_err("failed to allocate kernel doorbells\n"); in kfd_doorbell_init()
102 amdgpu_bo_free_kernel(&kfd->doorbells, NULL, in kfd_doorbell_fini()
165 kfd->doorbells, in kfd_get_kernel_doorbell()
218 /* Mask out doorbells reserved for SDMA, IH, and VCN on SOC15. */ in init_doorbell_bitmap()
[all …]
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| H A D | kfd_priv.h | 121 * same SDMA engine on SOC15, which has 8-byte doorbells for SDMA.
123 * (2*i+1) doorbells (in terms of the lower 12 bit address) lie exactly in
319 u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells
368 /* Kernel doorbells for KFD device */
369 struct amdgpu_bo *doorbells; member
690 /* doorbells for kfd process */
1073 /* Doorbells */
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| /openbmc/linux/drivers/gpu/drm/amd/amdgpu/ |
| H A D | amdgpu_doorbell.h | 35 /* Number of doorbells reserved for amdgpu kernel driver */
38 /* Kernel doorbells */
41 /* For CPU access of doorbells */
45 /* Reserved doorbells for amdgpu (including multimedia).
241 …* All compute related doorbells: kiq, hiq, diq, traditional compute queue, user queue, should loca…
243 * Compute related doorbells are allocated from 0x00 to 0x8a
264 /* User queue doorbell range (128 doorbells) */
272 * Other graphics doorbells can be allocated here: from 0x8c to 0xdf
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| H A D | amdgpu_doorbell_mgr.c | 138 * amdgpu_doorbell_create_kernel_doorbells - Create kernel doorbells for graphics
142 * Creates doorbells for graphics driver usages.
150 /* SI HW does not have doorbells, skip allocation */ in amdgpu_doorbell_create_kernel_doorbells()
169 DRM_ERROR("Failed to allocate kernel doorbells, err=%d\n", r); in amdgpu_doorbell_create_kernel_doorbells()
218 * doorbells are in the first page. So with paging queue enabled, in amdgpu_doorbell_init()
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| /openbmc/linux/Documentation/devicetree/bindings/interrupt-controller/ |
| H A D | msi.txt | 16 Devices may be configured by software to write to arbitrary doorbells which
17 they can address. An MSI controller may feature a number of doorbells.
35 address by some master. An MSI controller may feature a number of doorbells.
48 not encode doorbells or payloads as these can be configured dynamically.
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| H A D | msi-controller.yaml | 15 number of doorbells.
23 and will not encode doorbells or payloads as these can be
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| /openbmc/linux/drivers/ntb/ |
| H A D | Kconfig | 21 hardware doorbells. MSI interrupts typically offer lower latency
22 than doorbells and more MSI interrupts can be made available to
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| /openbmc/linux/arch/powerpc/platforms/pseries/ |
| H A D | smp.c | 165 /* Use msgsndp doorbells target is a sibling, else use interrupt controller */
206 /* Doorbells can only be used for IPIs between SMT siblings */ in pSeries_smp_probe()
214 * KVM emulates doorbells by disabling FSCR[MSGP] so msgsndp in pSeries_smp_probe()
233 * gang scheduled on the same physical core, so doorbells are always in pSeries_smp_probe()
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| /openbmc/linux/drivers/misc/vmw_vmci/ |
| H A D | vmci_context.h | 67 /* Doorbells created by context. */
70 /* Doorbells pending for context. */
102 * for doorbells and queue pairs.
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| H A D | vmci_doorbell.h | 17 * VMCINotifyResourceInfo: Used to create and destroy doorbells, and
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| /openbmc/linux/Documentation/devicetree/bindings/mailbox/ |
| H A D | nvidia,tegra186-hsp.yaml | 22 semaphores, arbitrated semaphores and doorbells.
38 For doorbells, the second cell specifies the index of the doorbell to
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| H A D | arm,mhuv2.yaml | 37 bits in a channel window. A channel window can support up to 32 doorbells
119 windows are used in doorbell protocol (64 doorbells), followed by 1, 5 and
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| /openbmc/linux/drivers/net/ethernet/fungible/funcore/ |
| H A D | fun_dev.h | 53 u32 __iomem *dbs; /* start of doorbells in BAR0 mapping */
62 /* address increment between consecutive doorbells, in 4B units */
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| /openbmc/linux/drivers/virt/ |
| H A D | fsl_hypervisor.c | 16 * 2. A file interface to reading incoming doorbells.
514 * Interrupt handler for all doorbells
516 * We use the same interrupt handler for all doorbells. Whenever a doorbell
548 * Interrupt handler for state-change doorbells
587 * Return the handles for any incoming doorbells
653 * Open the driver and prepare for reading doorbells.
656 * for that file handle. This queue is used for any incoming doorbells.
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| H A D | Kconfig | 37 2) A file interface to reading incoming doorbells.
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| /openbmc/linux/drivers/mailbox/ |
| H A D | tegra-hsp.c | 120 struct list_head doorbells; member
163 list_for_each_entry(entry, &hsp->doorbells, list) in __tegra_hsp_doorbell_get()
204 * have some doorbells enabled, which means that requesting an in tegra_hsp_doorbell_irq()
292 list_add_tail(&db->list, &hsp->doorbells); in tegra_hsp_doorbell_create()
740 INIT_LIST_HEAD(&hsp->doorbells); in tegra_hsp_probe()
804 dev_err(&pdev->dev, "failed to add doorbells: %d\n", in tegra_hsp_probe()
886 list_for_each_entry(db, &hsp->doorbells, list) { in tegra_hsp_resume()
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| /openbmc/u-boot/drivers/mailbox/ |
| H A D | Kconfig | 25 implements doorbells, mailboxes, semaphores, and shared interrupts.
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| /openbmc/linux/drivers/ntb/test/ |
| H A D | Kconfig | 6 doorbells of the ntb hardware. This driver may be used to test that
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| /openbmc/linux/drivers/net/ethernet/qlogic/qed/ |
| H A D | qed_vf.c | 461 /* Doorbells are tricky; Upper-layer has alreday set the hwfn doorbell in qed_vf_hw_prepare()
465 if (!p_hwfn->doorbells) { in qed_vf_hw_prepare()
466 p_hwfn->doorbells = (u8 __iomem *)p_hwfn->regview + in qed_vf_hw_prepare()
481 p_hwfn->doorbells = (u8 __iomem *) in qed_vf_hw_prepare()
544 p_hwfn->doorbells = (u8 __iomem *)p_hwfn->regview + in qed_vf_hw_prepare()
551 p_hwfn->regview, p_hwfn->doorbells, p_hwfn->cdev->doorbells); in qed_vf_hw_prepare()
880 *pp_doorbell = (u8 __iomem *)p_hwfn->doorbells + resp->offset; in qed_vf_pf_txq_start()
884 *pp_doorbell = (u8 __iomem *)p_hwfn->doorbells + in qed_vf_pf_txq_start()
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| H A D | qed.h | 487 BAR_ID_1 /* Used for doorbells */
545 void __iomem *doorbells; member
760 void __iomem *doorbells; member
967 ((cdev)->doorbells) + (db_addr)))
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| /openbmc/u-boot/doc/device-tree-bindings/mailbox/ |
| H A D | nvidia,tegra186-hsp.txt | 10 arbitrated semaphores and doorbells.
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| /openbmc/linux/drivers/infiniband/hw/efa/ |
| H A D | efa_admin_cmds_defs.h | 622 /* Bar used for SQ and RQ doorbells */
699 * consecutive doorbells (in units of 64B). Driver must ensure that only
702 * be written to SQ between two consecutive doorbells. max_tx_batch=11
704 * two consecutive doorbells. Zero means unlimited.
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| /openbmc/linux/Documentation/networking/device_drivers/ethernet/google/ |
| H A D | gve.rst | 33 - Bar2 - IRQ, RX and TX doorbells
150 doorbells to notify the device of new descriptors.
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| /openbmc/linux/Documentation/PCI/endpoint/function/binding/ |
| H A D | pci-ntb.rst | 31 db_count Number of doorbells; default = 4
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| /openbmc/linux/arch/powerpc/kernel/ |
| H A D | idle_64e.S | 29 * since we may otherwise lose it (doorbells etc...).
|