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[PULL,v2,2/8] target/hppa: Allow up to 16 BTLB entries

Message ID 20230919191757.98889-3-deller@kernel.org (mailing list archive)
State New, archived
Headers show
Series [PULL,v2,1/8] target/hppa: Update to SeaBIOS-hppa version 9 | expand

Commit Message

Helge Deller Sept. 19, 2023, 7:17 p.m. UTC 
From: Helge Deller <deller@gmx.de>

Reserve 16 out of the 256 TLB entries for Block-TLBs.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 target/hppa/cpu.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
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Patch

diff --git a/target/hppa/cpu.h b/target/hppa/cpu.h
index fa13694dab..23852d89b2 100644
--- a/target/hppa/cpu.h
+++ b/target/hppa/cpu.h
@@ -211,8 +211,14 @@  typedef struct CPUArchState {
     target_ureg shadow[7];   /* shadow registers */
 
     /* ??? The number of entries isn't specified by the architecture.  */
+#ifdef TARGET_HPPA64
+#define HPPA_BTLB_FIXED         0       /* BTLBs are not supported in 64-bit machines */
+#else
+#define HPPA_BTLB_FIXED         16
+#endif
+#define HPPA_BTLB_VARIABLE      0
 #define HPPA_TLB_ENTRIES        256
-#define HPPA_BTLB_ENTRIES       0
+#define HPPA_BTLB_ENTRIES       (HPPA_BTLB_FIXED + HPPA_BTLB_VARIABLE)
 
     /* ??? Implement a unified itlb/dtlb for the moment.  */
     /* ??? We should use a more intelligent data structure.  */