From: deller@kernel.org
To: qemu-devel@nongnu.org
Cc: Helge Deller <deller@gmx.de>,
Richard Henderson <richard.henderson@linaro.org>,
Laurent Vivier <laurent@vivier.eu>
Subject: [PULL v2 2/8] target/hppa: Allow up to 16 BTLB entries
Date: Tue, 19 Sep 2023 21:17:50 +0200 [thread overview]
Message-ID: <20230919191757.98889-3-deller@kernel.org> (raw)
In-Reply-To: <20230919191757.98889-1-deller@kernel.org>
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(-)
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. */
--
2.41.0
next prev parent reply other threads:[~2023-09-19 19:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-19 19:17 [PULL v2 0/8] Hppa btlb patches deller
2023-09-19 19:17 ` [PULL v2 1/8] target/hppa: Update to SeaBIOS-hppa version 9 deller
2023-09-19 19:17 ` deller [this message]
2023-09-19 19:17 ` [PULL v2 3/8] target/hppa: Report and clear BTLBs via fw_cfg at startup deller
2023-09-19 19:17 ` [PULL v2 4/8] target/hppa: Add BTLB support to hppa TLB functions deller
2023-09-19 19:17 ` [PULL v2 5/8] target/hppa: Extract diagnose immediate value deller
2023-09-19 19:17 ` [PULL v2 6/8] target/hppa: Wire up diag instruction to support BTLB deller
2023-09-19 19:17 ` [PULL v2 7/8] linux-user/hppa: clear the PSW 'N' bit when delivering signals deller
2023-09-19 19:17 ` [PULL v2 8/8] linux-user/hppa: lock both words of function descriptor deller
2023-09-20 20:05 ` [PULL v2 0/8] Hppa btlb patches Stefan Hajnoczi
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