13 years ago[SPARC64]: Add HWCAP_SPARC_BLKINIT elf capability flag for Niagara.
David S. Miller [Fri, 17 Feb 2006 18:14:38 +0000]
[SPARC64]: Add HWCAP_SPARC_BLKINIT elf capability flag for Niagara.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Use phys tsb address in tsb_insert() in SUN4V.
David S. Miller [Fri, 17 Feb 2006 17:54:42 +0000]
[SPARC64]: Use phys tsb address in tsb_insert() in SUN4V.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix uniprocessor IRQ targetting on SUN4V.
David S. Miller [Fri, 17 Feb 2006 16:38:06 +0000]
[SPARC64]: Fix uniprocessor IRQ targetting on SUN4V.

We need to use the real hardware processor ID when
targetting interrupts, not the "define to 0" thing
the uniprocessor build gives us.

Also, fill in the Node-ID and Agent-ID fields properly
on sun4u/Safari.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix PCI IRQ probing regression.
David S. Miller [Fri, 17 Feb 2006 16:20:18 +0000]
[SPARC64]: Fix PCI IRQ probing regression.

If the top-level cnode had multi entries in it's "reg"
property, we'd fail.  The buffer wasn't large enough in
such cases.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Get SUN4V SMP working.
David S. Miller [Fri, 17 Feb 2006 09:29:17 +0000]
[SPARC64]: Get SUN4V SMP working.

The sibling cpu bringup is extremely fragile.  We can only
perform the most basic calls until we take over the trap
table from the firmware/hypervisor on the new cpu.

This means no accesses to %g4, %g5, %g6 since those can't be
TLB translated without our trap handlers.

In order to achieve this:

1) Change sun4v_init_mondo_queues() so that it can operate in
   several modes.

   It can allocate the queues, or install them in the current
   processor, or both.

   The boot cpu does both in it's call early on.

   Later, the boot cpu allocates the sibling cpu queue, starts
   the sibling cpu, then the sibling cpu loads them in.

2) init_cur_cpu_trap() is changed to take the current_thread_info()
   as an argument instead of reading %g6 directly on the current
   cpu.

3) Create a trampoline stack for the sibling cpus.  We do our basic
   kernel calls using this stack, which is locked into the kernel
   image, then go to our proper thread stack after taking over the
   trap table.

4) While we are in this delicate startup state, we put 0xdeadbeef
   into %g4/%g5/%g6 in order to catch accidental accesses.

5) On the final prom_set_trap_table*() call, we put &init_thread_union
   into %g6.  This is a hack to make prom_world(0) work.  All that
   wants to do is restore the %asi register using
   get_thread_current_ds().

Longer term we should just do the OBP calls to set the trap table by
hand just like we do for everything else.  This would avoid that silly
prom_world(0) issue, then we can remove the init_thread_union hack.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Disable smp_report_regs() for now.
David S. Miller [Fri, 17 Feb 2006 09:17:21 +0000]
[SPARC64]: Disable smp_report_regs() for now.

For 32 cpus and a slow console, it just wedges the
machine especially with DETECT_SOFTLOCKUP enabled.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Rewrite pci_intmap_match().
David S. Miller [Fri, 17 Feb 2006 07:01:10 +0000]
[SPARC64]: Rewrite pci_intmap_match().

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>

13 years ago[SPARC64]: Don't set interrupt state to IDLE in enable_irq().
David S. Miller [Fri, 17 Feb 2006 04:44:25 +0000]
[SPARC64]: Don't set interrupt state to IDLE in enable_irq().

We'll lose events that way.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix return from trap on SUN4V.
David S. Miller [Fri, 17 Feb 2006 00:23:45 +0000]
[SPARC64]: Fix return from trap on SUN4V.

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>

13 years ago[SPARC64]: Add GET_GL_GLOBAL() macro for SUN4V.
David S. Miller [Fri, 17 Feb 2006 00:22:26 +0000]
[SPARC64]: Add GET_GL_GLOBAL() macro for SUN4V.

So we can read the %gl register for debugging.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Set dummy bucket->{imap,iclr} unique on SUN4V.
David S. Miller [Thu, 16 Feb 2006 22:37:05 +0000]
[SPARC64]: Set dummy bucket->{imap,iclr} unique on SUN4V.

So that free_irq() disable's the IRQ correctly.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Add sun4v_cpu_qconf() hypervisor call.
David S. Miller [Thu, 16 Feb 2006 22:26:53 +0000]
[SPARC64]: Add sun4v_cpu_qconf() hypervisor call.

Call it from register_one_mondo().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC]: Kill off these __put_user_ret things.
David S. Miller [Mon, 6 Mar 2006 00:46:58 +0000]
[SPARC]: Kill off these __put_user_ret things.

They are bogus and haven't been referenced in years.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: do_fptrap needs to load the thread reg into %g6.
David S. Miller [Thu, 16 Feb 2006 10:18:49 +0000]
[SPARC64]: do_fptrap needs to load the thread reg into %g6.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix bogus call to sun4v_mna in winfixup code.
David S. Miller [Thu, 16 Feb 2006 09:45:49 +0000]
[SPARC64]: Fix bogus call to sun4v_mna in winfixup code.

The C function is named sun4v_do_mna not sun4v_mna.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix tl1 trap state capture/dump on SUN4V.
David S. Miller [Thu, 16 Feb 2006 09:41:41 +0000]
[SPARC64]: Fix tl1 trap state capture/dump on SUN4V.

No trap levels above 2 in privileged mode on SUN4V.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64] sunhv: Support SYSRQ properly.
David S. Miller [Thu, 16 Feb 2006 08:42:21 +0000]
[SPARC64] sunhv: Support SYSRQ properly.

By calling uart_handle_break().  We'll still do the
"sun_do_break()" handling if the user gives two
breaks in a row.

We should probably do this in the other Sparc serial
drivers too.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64] PCI: Size TSB correctly on SUN4V.
David S. Miller [Thu, 16 Feb 2006 06:25:27 +0000]
[SPARC64] PCI: Size TSB correctly on SUN4V.

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>

13 years ago[SPARC64]: Fix OOPS on sunhv interrupts.
David S. Miller [Thu, 16 Feb 2006 05:56:49 +0000]
[SPARC64]: Fix OOPS on sunhv interrupts.

Until the uart is openned, port->info is NULL.

Also, init the port->irq properly and give a non-zero
port->membase so that the uart device reporting is done.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Don't use ASI_QUAD_LDD_PHYS on SUN4V.
David S. Miller [Thu, 16 Feb 2006 05:21:17 +0000]
[SPARC64]: Don't use ASI_QUAD_LDD_PHYS on SUN4V.

Need to use ASI_QUAD_LDD_PHYS_4V instead.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Do not write garbage into %pstate in tsb_context_switch().
David S. Miller [Thu, 16 Feb 2006 05:16:42 +0000]
[SPARC64]: Do not write garbage into %pstate in tsb_context_switch().

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>

13 years ago[SPARC64]: Fix flush_tsb_user() on SUN4V.
David S. Miller [Thu, 16 Feb 2006 05:01:31 +0000]
[SPARC64]: Fix flush_tsb_user() on SUN4V.

Needs to use physical addressing just like cheetah_plus.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix comment typo in __flush_tlb_kernel_range.
David S. Miller [Thu, 16 Feb 2006 04:35:10 +0000]
[SPARC64]: Fix comment typo in __flush_tlb_kernel_range.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Decode virtual-devices interrupts correctly.
David S. Miller [Thu, 16 Feb 2006 03:48:54 +0000]
[SPARC64]: Decode virtual-devices interrupts correctly.

Need to translate through the interrupt-map{,-mask] properties.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Add prom_{start,stop}cpu_cpuid().
David S. Miller [Wed, 15 Feb 2006 10:26:54 +0000]
[SPARC64]: Add prom_{start,stop}cpu_cpuid().

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>

13 years ago[SPARC64]: Fix pci_intmap_match().
David S. Miller [Wed, 15 Feb 2006 09:19:56 +0000]
[SPARC64]: Fix pci_intmap_match().

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>

13 years ago[SPARC64]: Two IRQ handling fixes.
David S. Miller [Wed, 15 Feb 2006 09:18:19 +0000]
[SPARC64]: Two IRQ handling fixes.

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>

13 years ago[SPARC64]: Fixup TSTATE layout diagram in asm/pstate.h
David S. Miller [Wed, 15 Feb 2006 08:41:47 +0000]
[SPARC64]: Fixup TSTATE layout diagram in asm/pstate.h

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Use different cache sizing defaults on SUN4V.
David S. Miller [Wed, 15 Feb 2006 08:35:50 +0000]
[SPARC64]: Use different cache sizing defaults on SUN4V.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Make lack of interrupt-map-* a fatal error on SUN4V.
David S. Miller [Wed, 15 Feb 2006 06:20:41 +0000]
[SPARC64]: Make lack of interrupt-map-* a fatal error on SUN4V.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix sun4v_intr_setenabled() return value check in enable_irq().
David S. Miller [Wed, 15 Feb 2006 06:20:13 +0000]
[SPARC64]: Fix sun4v_intr_setenabled() return value check in enable_irq().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Explicitly init *nregs to 0 in find_device_prom_node().
David S. Miller [Wed, 15 Feb 2006 00:44:39 +0000]
[SPARC64]: Explicitly init *nregs to 0 in find_device_prom_node().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Restrict PCI bus scanning on SUN4V.
David S. Miller [Wed, 15 Feb 2006 00:42:11 +0000]
[SPARC64]: Restrict PCI bus scanning on SUN4V.

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>

13 years ago[SPARC64]: Fix C-function name called by sun4v_mna trap code.
David S. Miller [Wed, 15 Feb 2006 00:39:22 +0000]
[SPARC64]: Fix C-function name called by sun4v_mna trap code.

The trap code was calling itself :-)

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Don't printk() any messaages in sun4v_build_irq().
David S. Miller [Wed, 15 Feb 2006 00:37:13 +0000]
[SPARC64]: Don't printk() any messaages in sun4v_build_irq().

It just clutters up the log.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: INO is never fully specified already on SUN4V.
David S. Miller [Tue, 14 Feb 2006 22:12:44 +0000]
[SPARC64]: INO is never fully specified already on SUN4V.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Kill sun4v_register_fault_status() on SMP.
David S. Miller [Tue, 14 Feb 2006 21:49:32 +0000]
[SPARC64]: Kill sun4v_register_fault_status() on SMP.

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>

13 years ago[SPARC64]: Fix gcc-3.3.x warnings.
David S. Miller [Tue, 14 Feb 2006 09:32:29 +0000]
[SPARC64]: Fix gcc-3.3.x warnings.

It doesn't like const variables being passed into
"i" constraing asm operations.  It's a bug, but
there is nothing we can really do but work around
it.

Based upon a report from Andrew Morton.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: arch/sparc64/kernel/trampoline.S needs asm/cpudata.h
David S. Miller [Tue, 14 Feb 2006 08:55:49 +0000]
[SPARC64]: arch/sparc64/kernel/trampoline.S needs asm/cpudata.h

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Make error codes available from sun4v_intr_get*().
David S. Miller [Tue, 14 Feb 2006 06:56:27 +0000]
[SPARC64]: Make error codes available from sun4v_intr_get*().

And check for errors at call sites.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Pass correct ino to sun4v_intr_*().
David S. Miller [Tue, 14 Feb 2006 06:37:32 +0000]
[SPARC64]: Pass correct ino to sun4v_intr_*().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Use TRAP_LOAD_IRQ_WORK() in sun4v device mondo handler.
David S. Miller [Tue, 14 Feb 2006 06:37:07 +0000]
[SPARC64]: Use TRAP_LOAD_IRQ_WORK() in sun4v device mondo handler.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix IOMMU mapping on sun4v.
David S. Miller [Tue, 14 Feb 2006 05:50:27 +0000]
[SPARC64]: Fix IOMMU mapping on sun4v.

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>

13 years ago[SPARC64]: Trim down sun4v IRQ translation kernel log message.
David S. Miller [Tue, 14 Feb 2006 05:36:30 +0000]
[SPARC64]: Trim down sun4v IRQ translation kernel log message.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64] sunhv: Bug fixes.
David S. Miller [Tue, 14 Feb 2006 05:28:40 +0000]
[SPARC64] sunhv: Bug fixes.

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>

13 years ago[SPARC64]: Fix comment typo in asm/hypervisor.h
David S. Miller [Tue, 14 Feb 2006 05:15:44 +0000]
[SPARC64]: Fix comment typo in asm/hypervisor.h

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64] sunhv: Use virtual-devices layer to get interrupt.
David S. Miller [Tue, 14 Feb 2006 04:43:02 +0000]
[SPARC64] sunhv: Use virtual-devices layer to get interrupt.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Probe virtual-devices root node on sun4v.
David S. Miller [Tue, 14 Feb 2006 04:42:16 +0000]
[SPARC64]: Probe virtual-devices root node on sun4v.

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>

13 years ago[SPARC64]: Kill spurious semicolon in sun4v_pci_init().
David S. Miller [Tue, 14 Feb 2006 04:41:11 +0000]
[SPARC64]: Kill spurious semicolon in sun4v_pci_init().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Prevent registering wrong serial console.
David S. Miller [Tue, 14 Feb 2006 04:09:10 +0000]
[SPARC64]: Prevent registering wrong serial console.

If the console is not for a particular Sun serial
controller, set the drv->cons to NULL.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Program IRQ registers correctly on sun4v.
David S. Miller [Tue, 14 Feb 2006 02:22:57 +0000]
[SPARC64]: Program IRQ registers correctly on sun4v.

Need to use hypervisor calls instead of direct register
accesses.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Generic sun4v_build_irq().
David S. Miller [Tue, 14 Feb 2006 02:16:10 +0000]
[SPARC64]: Generic sun4v_build_irq().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: More SUN4V PCI work.
David S. Miller [Tue, 14 Feb 2006 02:09:44 +0000]
[SPARC64]: More SUN4V PCI work.

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>

13 years ago[SPARC64]: Log faulting vaddr when bogus kernel PC detected.
David S. Miller [Tue, 14 Feb 2006 02:07:45 +0000]
[SPARC64]: Log faulting vaddr when bogus kernel PC detected.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Implement rest of generic interrupt hypervisor calls.
David S. Miller [Mon, 13 Feb 2006 08:23:32 +0000]
[SPARC64]: Implement rest of generic interrupt hypervisor calls.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Move devino_to_sysino out of pci_sun4v_asm.S
David S. Miller [Mon, 13 Feb 2006 08:02:16 +0000]
[SPARC64]: Move devino_to_sysino out of pci_sun4v_asm.S

It is not PCI specific, it is for all system interrupts.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Range check bus number in SUN4V PCI controller driver.
David S. Miller [Mon, 13 Feb 2006 07:49:18 +0000]
[SPARC64]: Range check bus number in SUN4V PCI controller driver.

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>

13 years ago[SPARC64]: Missing 'return' statement in sun4v_pci_init().
David S. Miller [Mon, 13 Feb 2006 06:29:36 +0000]
[SPARC64]: Missing 'return' statement in sun4v_pci_init().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Implement basic pci_sun4v_scan_bus().
David S. Miller [Mon, 13 Feb 2006 06:18:52 +0000]
[SPARC64]: Implement basic pci_sun4v_scan_bus().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: PCI-SUN4V fixes.
David S. Miller [Mon, 13 Feb 2006 06:06:53 +0000]
[SPARC64]: PCI-SUN4V fixes.

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>

13 years ago[SPARC64]: Use inline patching for critical PTE operations.
David S. Miller [Mon, 13 Feb 2006 05:10:07 +0000]
[SPARC64]: Use inline patching for critical PTE operations.

This handles the SUN4U vs SUN4V PTE layout differences
with near zero performance cost.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Move PTE field definitions back into asm/pgtable.h
David S. Miller [Mon, 13 Feb 2006 01:07:51 +0000]
[SPARC64]: Move PTE field definitions back into asm/pgtable.h

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Don't expect cfg space in PCI PBM ranges on SUN4V.
David S. Miller [Sun, 12 Feb 2006 07:38:00 +0000]
[SPARC64]: Don't expect cfg space in PCI PBM ranges on SUN4V.

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>

13 years ago[SPARC64]: Fix branch signedness bug in all code patching.
David S. Miller [Sun, 12 Feb 2006 07:28:40 +0000]
[SPARC64]: Fix branch signedness bug in all code patching.

The bug that hit SUN4V TLB patching exists elsewhere.
Make sure we cure all such cases.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Recognize "virtual-console" as input and output console device.
David S. Miller [Sun, 12 Feb 2006 07:24:30 +0000]
[SPARC64]: Recognize "virtual-console" as input and output console device.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Do not try to synchronize %stick registers on SUN4V.
David S. Miller [Sun, 12 Feb 2006 07:22:47 +0000]
[SPARC64]: Do not try to synchronize %stick registers on SUN4V.

Writes by privileged code are not allowed.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Do not try to write to %tick or %stick on SUN4V.
David S. Miller [Sun, 12 Feb 2006 07:14:59 +0000]
[SPARC64]: Do not try to write to %tick or %stick on SUN4V.

Writes by privileged code are disallowed.  The hypervisor manages
the non-privileged bit.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix mondo queue allocations.
David S. Miller [Sun, 12 Feb 2006 07:07:13 +0000]
[SPARC64]: Fix mondo queue allocations.

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>

13 years ago[SPARC64]: Deal with PTE layout differences in SUN4V.
David S. Miller [Sun, 12 Feb 2006 05:57:54 +0000]
[SPARC64]: Deal with PTE layout differences in SUN4V.

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>

13 years ago[SPARC64]: Register kernel TSB with hypervisor.
David S. Miller [Sat, 11 Feb 2006 22:41:18 +0000]
[SPARC64]: Register kernel TSB with hypervisor.

We do this right after we take over the trap table from OBP.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix some SUN4V TLB miss bugs.
David S. Miller [Sat, 11 Feb 2006 20:21:20 +0000]
[SPARC64]: Fix some SUN4V TLB miss bugs.

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>

13 years ago[SPARC64]: Fix typo in sun4v_patch().
David S. Miller [Sat, 11 Feb 2006 19:05:52 +0000]
[SPARC64]: Fix typo in sun4v_patch().

Second instruction offset is '4' not '3'.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix sun4v early bootup.
David S. Miller [Sat, 11 Feb 2006 18:56:43 +0000]
[SPARC64]: Fix sun4v early bootup.

prom_sun4v_name should be "sun4v" not "SUNW,sun4v"

Also, this is too early to make use of the
.sun4v_Xinsn_patch code patching, so just check
things manually.

This gets us at least to prom_init() on Niagara.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix some Niagara memcpy() bugs.
David S. Miller [Sat, 11 Feb 2006 18:30:41 +0000]
[SPARC64]: Fix some Niagara memcpy() bugs.

We need to restore the %asi register properly.
For the kernel this means get_fs(), for user this
means ASI_PNF.

Also, NGcopy_to_user.S was including U3memcpy.S instead
of NGmemcpy.S, oops :-)

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Handle hypervisor case correctly in copy_tsb().
David S. Miller [Sat, 11 Feb 2006 18:19:37 +0000]
[SPARC64]: Handle hypervisor case correctly in copy_tsb().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Add SUN4V Hypervisor Console driver.
David S. Miller [Sat, 11 Feb 2006 10:25:21 +0000]
[SPARC64]: Add SUN4V Hypervisor Console driver.

Since it can do things like BREAK and HUP, we implement
this as a serial uart driver.

This still needs interrupt probing code, as I haven't figured
out how interrupts will work or be probed for on SUN4V yet.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fetch bootup time of day from Hypervisor.
David S. Miller [Sat, 11 Feb 2006 09:01:55 +0000]
[SPARC64]: Fetch bootup time of day from Hypervisor.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Simplify sun4v TLB handling using macros.
David S. Miller [Sat, 11 Feb 2006 08:29:34 +0000]
[SPARC64]: Simplify sun4v TLB handling using macros.

There was also a bug in sun4v_itlb_miss, it loaded the
MMU Fault Status base into %g3 instead of %g2.

This pointed out a fast path for TSB miss processing,
since we have %g2 with the MMU Fault Status base, we
can use that to quickly load up the PGD phys address.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Use ASI_SCRATCHPAD address 0x0 properly.
David S. Miller [Fri, 10 Feb 2006 23:39:51 +0000]
[SPARC64]: Use ASI_SCRATCHPAD address 0x0 properly.

This is where the virtual address of the fault status
area belongs.

To set it up we don't make a hypervisor call, instead
we call OBP's SUNW,set-trap-table with the real address
of the fault status area as the second argument.  And
right before that call we write the virtual address into
ASI_SCRATCHPAD vaddr 0x0.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: First cut at SUN4V PCI IOMMU handling.
David S. Miller [Fri, 10 Feb 2006 08:08:26 +0000]
[SPARC64]: First cut at SUN4V PCI IOMMU handling.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix hypervisor call arg passing.
David S. Miller [Fri, 10 Feb 2006 06:57:21 +0000]
[SPARC64]: Fix hypervisor call arg passing.

Function goes in %o5, args go in %o0 --> %o5.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Add HV_PCI_TSBID() macro.
David S. Miller [Fri, 10 Feb 2006 06:26:34 +0000]
[SPARC64]: Add HV_PCI_TSBID() macro.

For constructing hypervisor PCI TSB IDs.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Implement SUN4V PCI config space access.
David S. Miller [Fri, 10 Feb 2006 06:20:01 +0000]
[SPARC64]: Implement SUN4V PCI config space access.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: More SUN4V PCI controller work.
David S. Miller [Fri, 10 Feb 2006 06:05:54 +0000]
[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>

13 years ago[SPARC64]: Beginnings of SUN4V PCI controller support.
David S. Miller [Fri, 10 Feb 2006 05:32:07 +0000]
[SPARC64]: Beginnings of SUN4V PCI controller support.

Abstract out IOMMU operations so that we can have a different
set of calls on sun4v, which needs to do things through
hypervisor calls.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fetch cpu mid properly on sun4v.
David S. Miller [Fri, 10 Feb 2006 04:46:22 +0000]
[SPARC64]: Fetch cpu mid properly on sun4v.

If there is a "cpuid" property, use that.  Else suck
it out of the top bits of the "reg" property.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC]: Clean up idprom header files.
David S. Miller [Fri, 10 Feb 2006 04:45:26 +0000]
[SPARC]: Clean up idprom header files.

Delete unused macros, and use fixed sized types in
sparc32 header.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: SUN4V memory exception trap handlers.
David S. Miller [Fri, 10 Feb 2006 04:20:34 +0000]
[SPARC64]: SUN4V memory exception trap handlers.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Hypervisor TSB context switching.
David S. Miller [Fri, 10 Feb 2006 01:21:53 +0000]
[SPARC64]: Hypervisor TSB context switching.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Implement sun4v TSB miss handlers.
David S. Miller [Fri, 10 Feb 2006 00:12:22 +0000]
[SPARC64]: Implement sun4v TSB miss handlers.

When we register a TSB with the hypervisor, so that it or hardware can
handle TLB misses and do the TSB walk for us, the hypervisor traps
down to these trap when it incurs a TSB miss.

Processing is simple, we load the missing virtual address and context,
and do a full page table walk.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: kernel/cpu.c needs asm/spitfire.h
David S. Miller [Thu, 9 Feb 2006 11:00:00 +0000]
[SPARC64]: kernel/cpu.c needs asm/spitfire.h

For 'tlb_type'.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Print ARCH as SUN4V when tlb_type is hypervisor.
David S. Miller [Thu, 9 Feb 2006 10:54:54 +0000]
[SPARC64]: Print ARCH as SUN4V when tlb_type is hypervisor.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Detect sun4v early in boot process.
David S. Miller [Thu, 9 Feb 2006 10:52:44 +0000]
[SPARC64]: Detect sun4v early in boot process.

We look for "SUNW,sun4v" in the 'compatible' property
of the root OBP device tree node.

Protect every %ver register access, to make sure it is
not touched on sun4v, as %ver is hyperprivileged there.

Lock kernel TLB entries using hypervisor calls instead of
calls into OBP.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Sun4v cross-call sending support.
David S. Miller [Thu, 9 Feb 2006 00:41:20 +0000]
[SPARC64]: Sun4v cross-call sending support.

Technically the hypervisor call supports sending in a list
of all cpus to get the cross-call, but I only pass in one
cpu at a time for now.

The multi-cpu support is there, just ifdef'd out so it's easy to
enable or delete it later.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Sun4v interrupt handling.
David S. Miller [Wed, 8 Feb 2006 10:53:50 +0000]
[SPARC64]: Sun4v interrupt handling.

Sun4v has 4 interrupt queues: cpu, device, resumable errors,
and non-resumable errors.  A set of head/tail offset pointers
help maintain a work queue in physical memory.  The entries
are 64-bytes in size.

Each queue is allocated then registered with the hypervisor
as we bring cpus up.

The two error queues each get a kernel side buffer that we
use to quickly empty the main interrupt queue before we
call up to C code to log the event and possibly take evasive
action.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Allocate and register the 4 sun4v mondo queues at bootup.
David S. Miller [Wed, 8 Feb 2006 08:08:23 +0000]
[SPARC64]: Allocate and register the 4 sun4v mondo queues at bootup.

Needs to occur before we enable PSTATE_IE in %pstate.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Verify all trap_per_cpu assembler offsets in trap_init()
David S. Miller [Wed, 8 Feb 2006 07:51:49 +0000]
[SPARC64]: Verify all trap_per_cpu assembler offsets in trap_init()

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Add sun4v mondo queue bases to struct trap_per_cpu.
David S. Miller [Wed, 8 Feb 2006 06:53:56 +0000]
[SPARC64]: Add sun4v mondo queue bases to struct trap_per_cpu.

Also, correct TRAP_PER_CPU_FAULT_INFO define, it should be
0x40 not 0x20.

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Fix some comment typos in asm/hypervisor.h
David S. Miller [Wed, 8 Feb 2006 06:49:38 +0000]
[SPARC64]: Fix some comment typos in asm/hypervisor.h

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SPARC64]: Patch up mmu context register writes for sun4v.
David S. Miller [Wed, 8 Feb 2006 06:13:05 +0000]
[SPARC64]: Patch up mmu context register writes for sun4v.

sun4v uses ASI_MMU instead of ASI_DMMU

Signed-off-by: David S. Miller <davem@davemloft.net>