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2006-03-20[SPARC64]: Rewrite pci_intmap_match().David S. Miller
The whole algorithm was wrong. What we need to do is: 1) Walk each PCI bus above this device on the path to the PCI controller nexus, and for each: a) If interrupt-map exists, apply it, record IRQ controller node b) Else, swivel interrupt number using PCI_SLOT(), use PCI bus parent OBP node as controller node c) Walk up to "controller node" until we hit the first PCI bus in this domain, or "controller node" is the PCI controller OBP node 2) If we walked to PCI controller OBP node, we're done. 3) Else, apply PCI controller interrupt-map to interrupt. There is some stuff that needs to be checked out for ebus and isa, but the PCI part is good to go. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Don't set interrupt state to IDLE in enable_irq().David S. Miller
We'll lose events that way. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Fix return from trap on SUN4V.David S. Miller
We need to set the global register set _AND_ disable PSTATE_IE in %pstate. The original patch sequence was leaving PSTATE_IE enabled when returning to kernel mode, oops. This fixes the random register corruption being seen on SUN4V. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Set dummy bucket->{imap,iclr} unique on SUN4V.David S. Miller
So that free_irq() disable's the IRQ correctly. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Add sun4v_cpu_qconf() hypervisor call.David S. Miller
Call it from register_one_mondo(). Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: do_fptrap needs to load the thread reg into %g6.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Fix bogus call to sun4v_mna in winfixup code.David S. Miller
The C function is named sun4v_do_mna not sun4v_mna. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Fix tl1 trap state capture/dump on SUN4V.David S. Miller
No trap levels above 2 in privileged mode on SUN4V. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64] PCI: Size TSB correctly on SUN4V.David S. Miller
Forgot to multiply by 8 * 1024, oops. Correct the size constant when the virtual-dma arena is 2GB in size, it should bet 256 not 128. Finally, log some info about the TSB at probe time. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Don't use ASI_QUAD_LDD_PHYS on SUN4V.David S. Miller
Need to use ASI_QUAD_LDD_PHYS_4V instead. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Do not write garbage into %pstate in tsb_context_switch().David S. Miller
For SUN4V, we were clobbering %o5 to do the hypervisor call. This clobbers the saved %pstate value and we end up writing garbage into that register as a result. Oops. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Decode virtual-devices interrupts correctly.David S. Miller
Need to translate through the interrupt-map{,-mask] properties. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Add prom_{start,stop}cpu_cpuid().David S. Miller
Use prom_startcpu_cpuid() on SUN4V instead of prom_startcpu(). We should really test for "SUNW,start-cpu-by-cpuid" presence and use it if present even on SUN4U. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Fix pci_intmap_match().David S. Miller
When crawling up the PCI bus chain, stop at the first node that has an interrupt-map property before we hit the root. Also, if we use a bus interrupt-{map,mask} do not forget to update the 'intmask' pointer as we do for the 'intmap' pointer. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Two IRQ handling fixes.David S. Miller
On SUN4V, force IRQ state to idle in enable_irq(). However, I'm still not sure this is %100 correct. Call add_interrupt_randomness() on SUN4V too. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Use different cache sizing defaults on SUN4V.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Make lack of interrupt-map-* a fatal error on SUN4V.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Fix sun4v_intr_setenabled() return value check in enable_irq().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Explicitly init *nregs to 0 in find_device_prom_node().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Restrict PCI bus scanning on SUN4V.David S. Miller
On the PBM's first bus number, only allow device 0, function 0, to be poked at with PCI config space accesses. For some reason, this single device responds to all device numbers. Also, reduce the verbiage of the debugging log printk's for PCI cfg space accesses in the SUN4V PCI controller driver, so that it doesn't overwhelm the slow SUN4V hypervisor console. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Fix C-function name called by sun4v_mna trap code.David S. Miller
The trap code was calling itself :-) Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Don't printk() any messaages in sun4v_build_irq().David S. Miller
It just clutters up the log. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: INO is never fully specified already on SUN4V.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Kill sun4v_register_fault_status() on SMP.David S. Miller
That now gets done as a side effect of taking over the trap table from OBP. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: arch/sparc64/kernel/trampoline.S needs asm/cpudata.hDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Make error codes available from sun4v_intr_get*().David S. Miller
And check for errors at call sites. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Pass correct ino to sun4v_intr_*().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Use TRAP_LOAD_IRQ_WORK() in sun4v device mondo handler.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Fix IOMMU mapping on sun4v.David S. Miller
We should dynamically allocate the per-cpu pglist not use an in-kernel-image datum, since __pa() does not work on such addresses. Also, consistently use "u32" for devhandle. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Trim down sun4v IRQ translation kernel log message.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64] sunhv: Bug fixes.David S. Miller
Add udelay to polling console write loop, and increment the loop limit. Name the device "ttyHV" and pass that to add_preferred_console() when we're using hypervisor console. Kill sunhv_console_setup(), it's empty. Handle the case where we don't want to use hypervisor console. (ie. we have a head attached to a sun4v machine) Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Probe virtual-devices root node on sun4v.David S. Miller
This is where we learn how to get the interrupts for things like the hypervisor console device. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Kill spurious semicolon in sun4v_pci_init().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Program IRQ registers correctly on sun4v.David S. Miller
Need to use hypervisor calls instead of direct register accesses. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Generic sun4v_build_irq().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: More SUN4V PCI work.David S. Miller
Get bus range from child of PCI controller root nexus. This is actually a hack, but the PCI-E bridge sitting at the top of the PCI tree responds to PCI config cycles for every device number, so best to just ignore it for now. Preliminary PCI irq routing, needs lots of work. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Implement rest of generic interrupt hypervisor calls.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Move devino_to_sysino out of pci_sun4v_asm.SDavid S. Miller
It is not PCI specific, it is for all system interrupts. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Range check bus number in SUN4V PCI controller driver.David S. Miller
It has to be somewhere in the range from pbm->pci_first_busno to pbm->pci_last_busno, inclusive. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Missing 'return' statement in sun4v_pci_init().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Implement basic pci_sun4v_scan_bus().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: PCI-SUN4V fixes.David S. Miller
Clear top 8-bits of physical addresses in "ranges" property. This gives the actual physical address. Detect PBM-A vs. PBM-B by checking bit 0x40 of the devhandle. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Don't expect cfg space in PCI PBM ranges on SUN4V.David S. Miller
PCI cfg space is accessed transparently through the Hypervisor and not through direct cpu PIO operations. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Recognize "virtual-console" as input and output console device.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Do not try to synchronize %stick registers on SUN4V.David S. Miller
Writes by privileged code are not allowed. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Do not try to write to %tick or %stick on SUN4V.David S. Miller
Writes by privileged code are disallowed. The hypervisor manages the non-privileged bit. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Fix mondo queue allocations.David S. Miller
We have to use bootmem during init_IRQ and page alloc for sibling cpu calls. Also, fix incorrect hypervisor call return value checks in the hypervisor SMP cpu mondo send code. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Deal with PTE layout differences in SUN4V.David S. Miller
Yes, you heard it right, they changed the PTE layout for SUN4V. Ho hum... This is the simple and inefficient way to support this. It'll get optimized, don't worry. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Register kernel TSB with hypervisor.David S. Miller
We do this right after we take over the trap table from OBP. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Fix some SUN4V TLB miss bugs.David S. Miller
Code patching did not sign extend negative branch offsets correctly. Kernel TLB miss path needs patching and %g4 register preservation in order to handle SUN4V correctly. Signed-off-by: David S. Miller <davem@davemloft.net>
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