Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 35 insertions, 0 deletions

diff --git a/include/asm-arm/arch-versatile/entry-macro.S b/include/asm-arm/arch-versatile/entry-macro.S
new file mode 100644
index 000000000000..90e4e970d253
--- /dev/null
+++ b/include/asm-arm/arch-versatile/entry-macro.S
@@ -0,0 +1,35 @@
+/*
+ * include/asm-arm/arch-versatile/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Versatile platforms
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+			.macro	disable_fiq
+		.endm
+
+		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+		ldr	\base, =IO_ADDRESS(VERSATILE_VIC_BASE)
+		ldr	\irqstat, [\base, #VIC_IRQ_STATUS]	@ get masked status
+		mov	\irqnr, #0
+		teq	\irqstat, #0
+		beq	1003f
+
+1001:		tst	\irqstat, #15
+		bne	1002f
+		add	\irqnr, \irqnr, #4
+		movs	\irqstat, \irqstat, lsr #4
+		bne	1001b
+1002:		tst	\irqstat, #1
+		bne	1003f
+		add	\irqnr, \irqnr, #1
+		movs	\irqstat, \irqstat, lsr #1
+		bne	1002b
+1003:		/* EQ will be set if no irqs pending */
+
+@		clz	\irqnr, \irqstat
+@1003:		/* EQ will be set if we reach MAXIRQNUM */
+		.endm
+