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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/arch/sparc/kernel/pci_sun4v.h

93 строки
3.5 KiB
C
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[SPARC64]: More SUN4V PCI controller work. Add assembler file for PCI hypervisor calls. Setup basic skeleton of SUN4V PCI controller driver. Add 32-bit devhandle to PBM struct, as this is needed for hypervisor calls. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-10 09:05:54 +03:00
/* pci_sun4v.h: SUN4V specific PCI controller support.
*
* Copyright (C) 2006 David S. Miller (davem@davemloft.net)
*/
#ifndef _PCI_SUN4V_H
#define _PCI_SUN4V_H
[SPARC64]: Remove PGLIST_NENTS PCI IOMMU mapping limitation on SUN4V. Use a batching queue system for IOMMU mapping setup, with a page sized batch. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-20 09:21:32 +03:00
extern long pci_sun4v_iommu_map(unsigned long devhandle,
unsigned long tsbid,
unsigned long num_ttes,
unsigned long io_attributes,
unsigned long io_page_list_pa);
[SPARC64]: More SUN4V PCI controller work. Add assembler file for PCI hypervisor calls. Setup basic skeleton of SUN4V PCI controller driver. Add 32-bit devhandle to PBM struct, as this is needed for hypervisor calls. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-10 09:05:54 +03:00
extern unsigned long pci_sun4v_iommu_demap(unsigned long devhandle,
unsigned long tsbid,
unsigned long num_ttes);
[SPARC64]: First cut at SUN4V PCI IOMMU handling. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-10 11:08:26 +03:00
extern unsigned long pci_sun4v_iommu_getmap(unsigned long devhandle,
unsigned long tsbid,
unsigned long *io_attributes,
unsigned long *real_address);
[SPARC64]: Implement SUN4V PCI config space access. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-10 09:20:01 +03:00
extern unsigned long pci_sun4v_config_get(unsigned long devhandle,
unsigned long pci_device,
unsigned long config_offset,
unsigned long size);
extern int pci_sun4v_config_put(unsigned long devhandle,
unsigned long pci_device,
unsigned long config_offset,
unsigned long size,
unsigned long data);
[SPARC64]: More SUN4V PCI controller work. Add assembler file for PCI hypervisor calls. Setup basic skeleton of SUN4V PCI controller driver. Add 32-bit devhandle to PBM struct, as this is needed for hypervisor calls. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-10 09:05:54 +03:00
[SPARC64]: Add PCI MSI support on Niagara. This is kind of hokey, we could use the hardware provided facilities much better. MSIs are assosciated with MSI Queues. MSI Queues generate interrupts when any MSI assosciated with it is signalled. This suggests a two-tiered IRQ dispatch scheme: MSI Queue interrupt --> queue interrupt handler MSI dispatch --> driver interrupt handler But we just get one-level under Linux currently. What I'd like to do is possibly stick the IRQ actions into a per-MSI-Queue data structure, and dispatch them form there, but the generic IRQ layer doesn't provide a way to do that right now. So, the current kludge is to "ACK" the interrupt by processing the MSI Queue data structures and ACK'ing them, then we run the actual handler like normal. We are wasting a lot of useful information, for example the MSI data and address are provided with ever MSI, as well as a system tick if available. If we could pass this into the IRQ handler it could help with certain things, in particular for PCI-Express error messages. The MSI entries on sparc64 also tell you exactly which bus/device/fn sent the MSI, which would be great for error handling when no registered IRQ handler can service the interrupt. We override the disable/enable IRQ chip methods in sun4v_msi, so we have to call {mask,unmask}_msi_irq() directly from there. This is another ugly wart. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-11 04:41:02 +03:00
extern unsigned long pci_sun4v_msiq_conf(unsigned long devhandle,
unsigned long msiqid,
unsigned long msiq_paddr,
unsigned long num_entries);
extern unsigned long pci_sun4v_msiq_info(unsigned long devhandle,
unsigned long msiqid,
unsigned long *msiq_paddr,
unsigned long *num_entries);
extern unsigned long pci_sun4v_msiq_getvalid(unsigned long devhandle,
unsigned long msiqid,
unsigned long *valid);
extern unsigned long pci_sun4v_msiq_setvalid(unsigned long devhandle,
unsigned long msiqid,
unsigned long valid);
extern unsigned long pci_sun4v_msiq_getstate(unsigned long devhandle,
unsigned long msiqid,
unsigned long *state);
extern unsigned long pci_sun4v_msiq_setstate(unsigned long devhandle,
unsigned long msiqid,
unsigned long state);
extern unsigned long pci_sun4v_msiq_gethead(unsigned long devhandle,
unsigned long msiqid,
unsigned long *head);
extern unsigned long pci_sun4v_msiq_sethead(unsigned long devhandle,
unsigned long msiqid,
unsigned long head);
extern unsigned long pci_sun4v_msiq_gettail(unsigned long devhandle,
unsigned long msiqid,
unsigned long *head);
extern unsigned long pci_sun4v_msi_getvalid(unsigned long devhandle,
unsigned long msinum,
unsigned long *valid);
extern unsigned long pci_sun4v_msi_setvalid(unsigned long devhandle,
unsigned long msinum,
unsigned long valid);
extern unsigned long pci_sun4v_msi_getmsiq(unsigned long devhandle,
unsigned long msinum,
unsigned long *msiq);
extern unsigned long pci_sun4v_msi_setmsiq(unsigned long devhandle,
unsigned long msinum,
unsigned long msiq,
unsigned long msitype);
extern unsigned long pci_sun4v_msi_getstate(unsigned long devhandle,
unsigned long msinum,
unsigned long *state);
extern unsigned long pci_sun4v_msi_setstate(unsigned long devhandle,
unsigned long msinum,
unsigned long state);
extern unsigned long pci_sun4v_msg_getmsiq(unsigned long devhandle,
unsigned long msinum,
unsigned long *msiq);
extern unsigned long pci_sun4v_msg_setmsiq(unsigned long devhandle,
unsigned long msinum,
unsigned long msiq);
extern unsigned long pci_sun4v_msg_getvalid(unsigned long devhandle,
unsigned long msinum,
unsigned long *valid);
extern unsigned long pci_sun4v_msg_setvalid(unsigned long devhandle,
unsigned long msinum,
unsigned long valid);
[SPARC64]: More SUN4V PCI controller work. Add assembler file for PCI hypervisor calls. Setup basic skeleton of SUN4V PCI controller driver. Add 32-bit devhandle to PBM struct, as this is needed for hypervisor calls. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-10 09:05:54 +03:00
#endif /* !(_PCI_SUN4V_H) */