28b2ee20c7
In order to be able to debug things like the X server and programs using the PPC Cell SPUs, the debugger needs to be able to access device memory through ptrace and /proc/pid/mem. This patch: Add the generic_access_phys access function and put the hooks in place to allow access_process_vm to access device or PPC Cell SPU memory. [riel@redhat.com: Add documentation for the vm_ops->access function] Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Benjamin Herrensmidt <benh@kernel.crashing.org> Cc: Dave Airlie <airlied@linux.ie> Cc: Hugh Dickins <hugh@veritas.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
55 lines
1.1 KiB
Plaintext
55 lines
1.1 KiB
Plaintext
#
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# General architecture dependent options
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#
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config OPROFILE
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tristate "OProfile system profiling (EXPERIMENTAL)"
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depends on PROFILING
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depends on HAVE_OPROFILE
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help
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OProfile is a profiling system capable of profiling the
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whole system, include the kernel, kernel modules, libraries,
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and applications.
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If unsure, say N.
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config HAVE_OPROFILE
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def_bool n
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config KPROBES
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bool "Kprobes"
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depends on KALLSYMS && MODULES
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depends on HAVE_KPROBES
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help
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Kprobes allows you to trap at almost any kernel address and
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execute a callback function. register_kprobe() establishes
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a probepoint and specifies the callback. Kprobes is useful
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for kernel debugging, non-intrusive instrumentation and testing.
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If in doubt, say "N".
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config KRETPROBES
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def_bool y
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depends on KPROBES && HAVE_KRETPROBES
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config HAVE_IOREMAP_PROT
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def_bool n
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config HAVE_KPROBES
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def_bool n
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config HAVE_KRETPROBES
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def_bool n
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config HAVE_DMA_ATTRS
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def_bool n
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config USE_GENERIC_SMP_HELPERS
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def_bool n
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config HAVE_CLK
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def_bool n
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help
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The <linux/clk.h> calls support software clock gating and
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thus are a key power management tool on many systems.
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