From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001
From: Srikant Patnaik
Date: Sun, 11 Jan 2015 12:28:04 +0530
Subject: Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
---
 arch/sparc/kernel/itlb_miss.S | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 arch/sparc/kernel/itlb_miss.S

(limited to 'arch/sparc/kernel/itlb_miss.S')

diff --git a/arch/sparc/kernel/itlb_miss.S b/arch/sparc/kernel/itlb_miss.S
new file mode 100644
index 00000000..5a8377b5
--- /dev/null
+++ b/arch/sparc/kernel/itlb_miss.S
@@ -0,0 +1,39 @@
+/* ITLB ** ICACHE line 1: Context 0 check and TSB load	*/
+	ldxa	[%g0] ASI_IMMU_TSB_8KB_PTR, %g1	! Get TSB 8K pointer
+	ldxa	[%g0] ASI_IMMU, %g6		! Get TAG TARGET
+	srlx	%g6, 48, %g5			! Get context
+	sllx	%g6, 22, %g6			! Zero out context
+	brz,pn	%g5, kvmap_itlb			! Context 0 processing
+	 srlx	%g6, 22, %g6			! Delay slot
+	TSB_LOAD_QUAD(%g1, %g4)			! Load TSB entry
+	cmp	%g4, %g6			! Compare TAG
+
+/* ITLB ** ICACHE line 2: TSB compare and TLB load	*/
+	bne,pn	%xcc, tsb_miss_itlb		! Miss
+	 mov	FAULT_CODE_ITLB, %g3
+	sethi	%hi(_PAGE_EXEC_4U), %g4
+	andcc	%g5, %g4, %g0			! Executable?
+	be,pn	%xcc, tsb_do_fault
+	 nop					! Delay slot, fill me
+	stxa	%g5, [%g0] ASI_ITLB_DATA_IN	! Load TLB
+	retry					! Trap done
+
+/* ITLB ** ICACHE line 3: 				*/
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+
+/* ITLB ** ICACHE line 4: 				*/
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
-- 
cgit