From: deller@kernel.org
To: qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>,
Helge Deller <deller@gmx.de>
Subject: [PATCH 2/6] target/hppa: Allow up to 16 BTLB entries
Date: Wed, 13 Sep 2023 11:53:36 +0200 [thread overview]
Message-ID: <20230913095340.32951-3-deller@kernel.org> (raw)
In-Reply-To: <20230913095340.32951-1-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:[~2023-09-13 9:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-13 9:53 [PATCH 0/6] Add Block-TLB support for hppa target deller
2023-09-13 9:53 ` [PATCH 1/6] target/hppa: Update to SeaBIOS-hppa version 9 deller
2023-09-13 9:53 ` deller [this message]
2023-09-13 9:53 ` [PATCH 3/6] target/hppa: Provide qemu version via fw_cfg to firmware deller
2023-09-13 9:53 ` [PATCH 4/6] target/hppa: Add BTLB support to hppa TLB functions deller
2023-09-13 9:53 ` [PATCH 5/6] target/hppa: Extract diagnose immediate value deller
2023-09-13 9:53 ` [PATCH 6/6] target/hppa: Wire up diag instruction to support BTLB deller
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