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authorDan Williams <dan.j.williams@intel.com>2007-02-16 22:16:32 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-02-17 16:04:29 +0100
commitf80dff9da07d81da16e3b842118d47b9febf9c01 (patch)
treeea2da17c5af516c241b3ea3b4dd4fa47d9d86769 /include/asm-arm/arch-netx
parent[ARM] 4184/1: iop: cp6 access handler (undef_hook) (diff)
downloadlinux-f80dff9da07d81da16e3b842118d47b9febf9c01.tar.xz
linux-f80dff9da07d81da16e3b842118d47b9febf9c01.zip
[ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user
get_irqnr_preamble allows machines to take some action before entering the get_irqnr_and_base loop. On iop we enable cp6 access. arch_ret_to_user is added to the userspace return path to allow individual architectures to take actions, like disabling coprocessor access, before the final return to userspace. Per Nicolas Pitre's note, there is no need to cp_wait on the return to user as the latency to return is sufficient. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-netx')
-rw-r--r--include/asm-arm/arch-netx/entry-macro.S6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-arm/arch-netx/entry-macro.S b/include/asm-arm/arch-netx/entry-macro.S
index 658df4d60ff3..83ad188a0847 100644
--- a/include/asm-arm/arch-netx/entry-macro.S
+++ b/include/asm-arm/arch-netx/entry-macro.S
@@ -23,6 +23,12 @@
.macro disable_fiq
.endm
+ .macro get_irqnr_preamble, base, tmp
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
mov \base, #io_p2v(0x00100000)
add \base, \base, #0x000ff000