lwn.git/arch/sparc/kernel/leon_kernel.c, branch v3.9.3

sparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq

2012-11-10T00:30:50+00:00

If an irq is being unlinked concurrently with leon_handle_ext_irq, irq_map[eirq] might be null in leon_handle_ext_irq. Make sure that this is not dereferenced. Signed-off-by: Andreas Larsson Acked-by: Sam Ravnborg Signed-off-by: David S. Miller

sparc32,leon: drop leon_init()

2012-07-26T23:46:16+00:00

This function was only used to set of_pdt_build_more to leon_node_init(). But the leon_node_init() was a nop as prom_amba_init was never assigned. Cc: Daniel Hellstrom Cc: Konrad Eisele Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller

sparc32,leon: clean up leon.h

2012-05-28T06:52:45+00:00

- Drop unused stuff accumulated over time - Drop non-leon stuff - Include almost all of the header unconditionally Signed-off-by: Sam Ravnborg Cc: Daniel Hellstrom Cc: Konrad Eisele

sparc32: remove remaining users of btfixup

2012-05-14T21:05:08+00:00

Use sparc_config to hold the last two function pointers. There was no point generating dedicated _ops structures only for these. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller

sparc32: move smp ipi to method ops

2012-05-14T21:05:07+00:00

I ended up renaming set_cpu_int to send_ipi to be consistent all way around. send_ipi was moved to the *_smp.c files so we could call the relevant method direct, without any _ops indirection. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller

sparc32: Move cache and TLB flushes over to method ops.

2012-05-14T03:49:31+00:00

This eliminated most of the remaining users of btfixup. There are some complications because of the special cases we have for sun4d, leon, and some flavors of viking. It was found that there are no cases where a flush_page_for_dma method was not hooked up to something, so the "noflush" iommu methods were removed. Add some documentation to the viking_sun4d_smp_ops to describe exactly the hardware bug which causes us to need special TLB flushing on sun4d. Signed-off-by: David S. Miller

sparc32: drop unused clear_cpu_int

2012-05-13T19:51:57+00:00

Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller

sparc32: drop unused set_irq_udt

2012-05-13T19:51:56+00:00

Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller

sparc32: generic clockevent support

2012-04-15T17:28:50+00:00

The kernel uses l14 timers as clockevents. l10 timer is used as clocksource if platform master_l10_counter isn't constantly zero. The clocksource is continuous, so it's possible to use high resolution timers. l10 timer is also used as clockevent on UP configurations. This realization is for sun4m, sun4d, sun4c, microsparc-IIep and LEON platforms. The appropriate LEON changes was made by Konrad Eisele. In case of sun4m's oneshot mode, profile irq is zeroed in smp4m_percpu_timer_interrupt(). It is maybe needless (double, triple etc overflow does nothing). sun4d is able to have oneshot mode too, but I haven't any way to test it. So code of its percpu timer handler is made as much equal to the current code as possible. The patch is tested on sun4m box in SMP mode by me, and tested by Konrad on leon in up mode (leon smp is broken atm - due to other reasons). Signed-off-by: Tkhai Kirill Tested-by: Konrad Eisele [leon up] [sam: revised patch to provide generic support for leon] Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller

sparc32: rename sparc_irq_config to sparc_config

2012-04-15T17:28:49+00:00

This struct holds platform specific config and is thus not limited to irq stuff. Do not let the name confuse us to think this is irq only. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller