All of lore.kernel.org
 help / color / mirror / Atom feed
* [OpenRISC] [PATCH] libgloss/or1k: Correct the IMMU SXE and UXE flags
@ 2021-07-01 23:17 Stafford Horne
  2021-07-05 20:59 ` Jeff Johnston
  0 siblings, 1 reply; 4+ messages in thread
From: Stafford Horne @ 2021-07-01 23:17 UTC (permalink / raw)
  To: openrisc

These have been defined incorrectly, as per specification and CPU
implementations SXE is bit 6 and UXE is bit 7.  This was noticed when
tracking down our test suite mmu test failures.

 Test Suite: https://github.com/openrisc/or1k-tests/blob/master/native/or1k/or1k-mmu.c#L68-L72
 Spec: https://raw.githubusercontent.com/openrisc/doc/master/openrisc-arch-1.3-rev1.pdf

See section 8.4.8 Instruction Translation Lookaside Buffer Way y Translate
Registers where these are defined.

Signed-off-by: Stafford Horne <shorne@gmail.com>
---
 libgloss/or1k/include/or1k-sprs.h | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/libgloss/or1k/include/or1k-sprs.h b/libgloss/or1k/include/or1k-sprs.h
index 8d1fe5ed9..d545fb1d3 100644
--- a/libgloss/or1k/include/or1k-sprs.h
+++ b/libgloss/or1k/include/or1k-sprs.h
@@ -1797,17 +1797,17 @@
 #define OR1K_SPR_IMMU_ITLBW_TR_D_GET(X) (((X) >> 5) & 0x1)
 #define OR1K_SPR_IMMU_ITLBW_TR_D_SET(X, Y) (((X) & OR1K_UNSIGNED(0xffffffdf)) | ((!!(Y)) << 5))
 
-/* User Execute Enable */
-#define OR1K_SPR_IMMU_ITLBW_TR_UXE_OFFSET 6
-#define OR1K_SPR_IMMU_ITLBW_TR_UXE_MASK   0x00000040
-#define OR1K_SPR_IMMU_ITLBW_TR_UXE_GET(X) (((X) >> 6) & 0x1)
-#define OR1K_SPR_IMMU_ITLBW_TR_UXE_SET(X, Y) (((X) & OR1K_UNSIGNED(0xffffffbf)) | ((!!(Y)) << 6))
-
 /* Supervisor Execute Enable */
-#define OR1K_SPR_IMMU_ITLBW_TR_SXE_OFFSET 7
-#define OR1K_SPR_IMMU_ITLBW_TR_SXE_MASK   0x00000080
-#define OR1K_SPR_IMMU_ITLBW_TR_SXE_GET(X) (((X) >> 7) & 0x1)
-#define OR1K_SPR_IMMU_ITLBW_TR_SXE_SET(X, Y) (((X) & OR1K_UNSIGNED(0xffffff7f)) | ((!!(Y)) << 7))
+#define OR1K_SPR_IMMU_ITLBW_TR_SXE_OFFSET 6
+#define OR1K_SPR_IMMU_ITLBW_TR_SXE_MASK   0x00000040
+#define OR1K_SPR_IMMU_ITLBW_TR_SXE_GET(X) (((X) >> 6) & 0x1)
+#define OR1K_SPR_IMMU_ITLBW_TR_SXE_SET(X, Y) (((X) & OR1K_UNSIGNED(0xffffffbf)) | ((!!(Y)) << 6))
+
+/* User Execute Enable */
+#define OR1K_SPR_IMMU_ITLBW_TR_UXE_OFFSET 7
+#define OR1K_SPR_IMMU_ITLBW_TR_UXE_MASK   0x00000080
+#define OR1K_SPR_IMMU_ITLBW_TR_UXE_GET(X) (((X) >> 7) & 0x1)
+#define OR1K_SPR_IMMU_ITLBW_TR_UXE_SET(X, Y) (((X) & OR1K_UNSIGNED(0xffffff7f)) | ((!!(Y)) << 7))
 
 /* Physical Page Number */
 #define OR1K_SPR_IMMU_ITLBW_TR_PPN_LSB    13
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-07-05 22:03 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-01 23:17 [OpenRISC] [PATCH] libgloss/or1k: Correct the IMMU SXE and UXE flags Stafford Horne
2021-07-05 20:59 ` Jeff Johnston
2021-07-05 21:21   ` Stafford Horne
2021-07-05 22:03     ` Jeff Johnston

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.