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Message-Id: <20130813063332.659677725@linuxfoundation.org>
Date: Mon, 12 Aug 2013 23:33:33 -0700
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Michael Neuling <mikey@...ling.org>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: [ 06/60] powerpc: Rework setting up H/FSCR bit definitions
3.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michael Neuling <mikey@...ling.org>
commit 74e400cee6c0266ba2d940ed78d981f1e24a8167 upstream.
This reworks the Facility Status and Control Regsiter (FSCR) config bit
definitions so that we can access the bit numbers. This is needed for a
subsequent patch to fix the userspace DSCR handling.
HFSCR and FSCR bit definitions are the same, so reuse them.
Signed-off-by: Michael Neuling <mikey@...ling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
arch/powerpc/include/asm/reg.h | 31 ++++++++++++++++++++-----------
1 file changed, 20 insertions(+), 11 deletions(-)
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -254,19 +254,28 @@
#define SPRN_HRMOR 0x139 /* Real mode offset register */
#define SPRN_HSRR0 0x13A /* Hypervisor Save/Restore 0 */
#define SPRN_HSRR1 0x13B /* Hypervisor Save/Restore 1 */
+/* HFSCR and FSCR bit numbers are the same */
+#define FSCR_TAR_LG 8 /* Enable Target Address Register */
+#define FSCR_EBB_LG 7 /* Enable Event Based Branching */
+#define FSCR_TM_LG 5 /* Enable Transactional Memory */
+#define FSCR_PM_LG 4 /* Enable prob/priv access to PMU SPRs */
+#define FSCR_BHRB_LG 3 /* Enable Branch History Rolling Buffer*/
+#define FSCR_DSCR_LG 2 /* Enable Data Stream Control Register */
+#define FSCR_VECVSX_LG 1 /* Enable VMX/VSX */
+#define FSCR_FP_LG 0 /* Enable Floating Point */
#define SPRN_FSCR 0x099 /* Facility Status & Control Register */
-#define FSCR_TAR (1 << (63-55)) /* Enable Target Address Register */
-#define FSCR_EBB (1 << (63-56)) /* Enable Event Based Branching */
-#define FSCR_DSCR (1 << (63-61)) /* Enable Data Stream Control Register */
+#define FSCR_TAR __MASK(FSCR_TAR_LG)
+#define FSCR_EBB __MASK(FSCR_EBB_LG)
+#define FSCR_DSCR __MASK(FSCR_DSCR_LG)
#define SPRN_HFSCR 0xbe /* HV=1 Facility Status & Control Register */
-#define HFSCR_TAR (1 << (63-55)) /* Enable Target Address Register */
-#define HFSCR_EBB (1 << (63-56)) /* Enable Event Based Branching */
-#define HFSCR_TM (1 << (63-58)) /* Enable Transactional Memory */
-#define HFSCR_PM (1 << (63-60)) /* Enable prob/priv access to PMU SPRs */
-#define HFSCR_BHRB (1 << (63-59)) /* Enable Branch History Rolling Buffer*/
-#define HFSCR_DSCR (1 << (63-61)) /* Enable Data Stream Control Register */
-#define HFSCR_VECVSX (1 << (63-62)) /* Enable VMX/VSX */
-#define HFSCR_FP (1 << (63-63)) /* Enable Floating Point */
+#define HFSCR_TAR __MASK(FSCR_TAR_LG)
+#define HFSCR_EBB __MASK(FSCR_EBB_LG)
+#define HFSCR_TM __MASK(FSCR_TM_LG)
+#define HFSCR_PM __MASK(FSCR_PM_LG)
+#define HFSCR_BHRB __MASK(FSCR_BHRB_LG)
+#define HFSCR_DSCR __MASK(FSCR_DSCR_LG)
+#define HFSCR_VECVSX __MASK(FSCR_VECVSX_LG)
+#define HFSCR_FP __MASK(FSCR_FP_LG)
#define SPRN_TAR 0x32f /* Target Address Register */
#define SPRN_LPCR 0x13E /* LPAR Control Register */
#define LPCR_VPM0 (1ul << (63-0))
--
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