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c04d6cfa3f
Basically, in HW the layout of the interrupt network is:
- One ICP per processor thread (the "presenter"). This contains the
registers to fetch a pending interrupt (ack), EOI, and control the
processor priority.
- One ICS per logical source of interrupts (ie, one per PCI host
bridge, and a few others here or there). This contains the per-interrupt
source configuration (target processor(s), priority, mask) and the
per-interrupt internal state.
Under PAPR, there is a single "virtual" ICS ... somewhat (it's a bit
oddball what pHyp does here, arguably there are two but we can ignore
that distinction). There is no register level access. A pair of firmware
(RTAS) calls is used to configure each virtual interrupt.
So our model here is somewhat the same. We have one ICS in the emulated
XICS which arguably *is* the emulated XICS, there's no point making it a
separate "device", that would just be gross, and each VCPU has an
associated ICP.
Yet we call the "XICS" struct icp_state and then the ICPs
'struct icp_server_state'. It's particularly confusing when all of the
functions have xics_prefixes yet take *icp arguments.
Rename:
struct icp_state -> XICSState
struct icp_server_state -> ICPState
struct ics_state -> ICSState
struct ics_irq_state -> ICSIRQState
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-id: 1374175984-8930-12-git-send-email-aliguori@us.ibm.com
[aik: added ics_resend() on post_load]
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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| .. | ||
| e500-ccsr.h | ||
| e500.c | ||
| e500.h | ||
| e500plat.c | ||
| mac_newworld.c | ||
| mac_oldworld.c | ||
| mac.h | ||
| Makefile.objs | ||
| mpc8544_guts.c | ||
| mpc8544ds.c | ||
| ppc4xx_devs.c | ||
| ppc4xx_pci.c | ||
| ppc405_boards.c | ||
| ppc405_uc.c | ||
| ppc405.h | ||
| ppc440_bamboo.c | ||
| ppc_booke.c | ||
| ppc.c | ||
| ppce500_spin.c | ||
| prep.c | ||
| spapr_events.c | ||
| spapr_hcall.c | ||
| spapr_iommu.c | ||
| spapr_pci.c | ||
| spapr_rtas.c | ||
| spapr_vio.c | ||
| spapr.c | ||
| virtex_ml507.c | ||