I'm pretty sure that the CKSEG0 bits are wrong, but I did need to
cover that region - because the SB-1 kernel links at 0xffffffff80100000
or so, disassembly and printing static variables don't work unless the
debugger can read that region.
Signed-off-by: Daniel Jacobowitz <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
From: Kaj-Michael Lang <[email protected]>
In ip22-setup.c the checks for serial/graphics console logic does
not check if ARCS console=g but the machine is using serial console, as
it does if no keyboard is attached.
This patch adds a check if ConsoleOut is serial. There might also be
support for other graphics than Newport soon...
Signed-off-by: Ralf Baechle <[email protected]>
It looks glibc's pow() assumes an unary '-' operation for any number
(including NaNs) always inverts its sign bit (though IEEE754 does not
specify the sign bit for NaNs). This patch make the kernel math-emu
emulates real MIPS neg.[ds] instruction.
Signed-off-by: Atsushi Nemoto <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
fls was the only called of flz, so fold flz into fls, same for the
__ilog2 call. Delete the now unused flz function.
Signed-off-by: Ralf Baechle <[email protected]>
Adding -mmad is not usable since over half a decade in gcc and when
fixed the proper -march option values should enable the use of the
mad, madu and mul instructions of the R5500, RM5200, RM7000 and RM9000
families.
Signed-off-by: Ralf Baechle <[email protected]>
AMD Au1200 SOC just doesn't have UART3, so KGDB won't even compile for it
as is, here's the fix to make KGDB use UART1.
Signed-off-by: Sergei Shtylyov <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
Fix a really old buglet in AMD Au1xx0 restart code: instead of
modifying the whole CP0 Config.K0 field to 010b (meaning KSEG0 uncached)
before flushing the caches and resetting a board, it only sets bit 1 of that
reg. which is effectively a NOP since Config.K0 == 011b as the kernel sets it
up (which is also its default value for Au1xx0).
Signed-off-by: Sergei Shtylyov <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
Fix the #define's for TX4927/37 timer reg's to match the datasheets (those
Signed-off-by: Konstantin Baydarov <[email protected]>
Signed-off-by: Sergei Shtylyov <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
When a cpu is hotplug-onlined, if we don't set per_cpu(last_jiffy) to
something sane, timer_interrupt will execute its while loop for every
tick missed since the cpu was last online (or since the system was
booted, if we're adding a new cpu). This can cause weird hangs, ssh
sessions dropping, and we can even go xmon if we take a global IPI at
the wrong time.
Signed-off-by: Nathan Lynch <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
We call unregister_vpa but we don't check to see if the hypervisor
supports this.
Signed-off-by: Michael Neuling <[email protected]>
Acked-by: Anton Blanchard <[email protected]>
--
arch/powerpc/platforms/pseries/setup.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
Signed-off-by: Paul Mackerras <[email protected]>
Updated SOC node definition in documentation to include bus-frequency
property. Also extended mdio example to match specification.
Signed-off-by: Becky Bruce <[email protected]>
Signed-off-by: Kumar Gala <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
Since 404849bbd2 we've been using
LOAD_REG_ADDRBASE, which uses the toc pointer, in decrementer_iSeries_masked.
This can explode if we take the decrementer interrupt while we're in a module,
because the toc pointer in r2 will be the module's toc pointer.
Signed-off-by: Michael Ellerman <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
The code to mark a page as icache dirty (so that it will later be
icache-dcache flushed when we try to execute from it) is duplicated in
three places: flush_dcache_page() does this marking and nothing else,
but clear_user_page() and copy_user_page() duplicate it, since those
functions make the page icache dirty themselves.
This patch makes those other functions call flush_dcache_page()
instead, so the logic's all in one place. This will make life less
confusing if we ever need to tweak the details of the the lazy icache
flush mechanism.
arch/powerpc/mm/mem.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
Signed-off-by: David Gibson <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
Checking a pointer for NULL before passing it to kfree is pointless, kfree
does its own NULL checking of input.
Signed-off-by: Jesper Juhl <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
arch/powerpc/kernel/udbg_16550.c: In function `udbg_init_maple_realmode':
arch/powerpc/kernel/udbg_16550.c:162: warning: assignment from incompatible pointer type
Signed-off-by: Olaf Hering <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
Use generic_calibrate_decr to restore missing clock: speed in /proc/cpuinfo
Signed-off-by: Olaf Hering <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
It's possible for prom_init to allocate the flat device tree inside the
kdump crash kernel region. If this happens, when we load the kdump kernel we
overwrite the flattened device tree, which is bad.
We could make prom_init try and avoid allocating inside the crash kernel
region, but then we run into issues if the crash kernel region uses all the
space inside the RMO. The easiest solution is to move the flat device tree
once we're running in the kernel.
Signed-off-by: Michael Ellerman <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
