- 20 3月, 2006 40 次提交
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
For 32 cpus and a slow console, it just wedges the machine especially with DETECT_SOFTLOCKUP enabled. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
We'll lose events that way. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
So we can read the %gl register for debugging. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
So that free_irq() disable's the IRQ correctly. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Call it from register_one_mondo(). Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
They are bogus and haven't been referenced in years. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
The C function is named sun4v_do_mna not sun4v_mna. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
No trap levels above 2 in privileged mode on SUN4V. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Need to use ASI_QUAD_LDD_PHYS_4V instead. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Needs to use physical addressing just like cheetah_plus. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Need to translate through the interrupt-map{,-mask] properties. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
The trap code was calling itself :-) Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
It just clutters up the log. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
That now gets done as a side effect of taking over the trap table from OBP. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
And check for errors at call sites. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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