[01/41] linux-user/sparc: Add more hwcap bits for sparc64

Message ID	20240302051601.53649-2-richard.henderson@linaro.org
State	Superseded
Headers	show Delivered-To: patch@linaro.org Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; From: Richard Henderson <richard.henderson@linaro.org> To: qemu-devel@nongnu.org Cc: mark.cave-ayland@ilande.co.uk, atar4qemu@gmail.com Subject: [PATCH 01/41] linux-user/sparc: Add more hwcap bits for sparc64 Date: Fri, 1 Mar 2024 19:15:21 -1000 Message-Id: <20240302051601.53649-2-richard.henderson@linaro.org> In-Reply-To: <20240302051601.53649-1-richard.henderson@linaro.org> References: <20240302051601.53649-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::c2d; envelope-from=richard.henderson@linaro.org; helo=mail-oo1-xc2d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01, T_SPF_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action Precedence: list Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org
Series	target/sparc: Implement VIS4 \| expand [00/41] target/sparc: Implement VIS4 [01/41] linux-user/sparc: Add more hwcap bits for sparc64 [02/41] target/sparc: Fix FEXPAND [03/41] target/sparc: Fix FMUL8x16 [04/41] target/sparc: Fix FMUL8x16A{U,L} [05/41] target/sparc: Fix FMULD8*X16 [06/41] target/sparc: Fix FPMERGE [07/41] target/sparc: Split out do_ms16b [08/41] target/sparc: Perform DFPREG/QFPREG in decodetree [09/41] target/sparc: Remove gen_dest_fpr_D [10/41] target/sparc: Remove cpu_fpr[] [11/41] target/sparc: Use gvec for VIS1 parallel add/sub [12/41] target/sparc: Implement FMAf extension [13/41] target/sparc: Add feature bits for VIS 3 [14/41] target/sparc: Implement ADDXC, ADDXCcc [15/41] target/sparc: Implement CMASK instructions [16/41] target/sparc: Implement FCHKSM16 [17/41] target/sparc: Implement FHADD, FHSUB, FNHADD, FNADD [18/41] target/sparc: Implement FNMUL [19/41] target/sparc: Implement FLCMP [20/41] target/sparc: Implement FMEAN16 [21/41] target/sparc: Implement FPADD64 FPSUB64 [22/41] target/sparc: Implement FPADDS, FPSUBS [23/41] target/sparc: Implement FPCMPEQ8, FPCMPNE8, FPCMPULE8, FPCMPUGT8 [24/41] target/sparc: Implement FSLL, FSRL, FSRA, FSLAS [25/41] target/sparc: Implement LDXEFSR [26/41] target/sparc: Implement LZCNT [27/41] target/sparc: Implement MOVsTOw, MOVdTOx, MOVwTOs, MOVxTOd [28/41] target/sparc: Implement PDISTN [29/41] target/sparc: Implement UMULXHI [30/41] target/sparc: Implement XMULX [31/41] target/sparc: Enable VIS3 feature bit [32/41] target/sparc: Implement IMA extension [33/41] target/sparc: Add feature bit for VIS4 [34/41] target/sparc: Implement FALIGNDATAi [35/41] target/sparc: Implement 8-bit FPADD, FPADDS, and FPADDUS [36/41] target/sparc: Implement VIS4 comparisons [37/41] target/sparc: Implement FPMIN, FPMAX [38/41] target/sparc: Implement SUBXC, SUBXCcc [39/41] target/sparc: Implement MWAIT [40/41] target/sparc: Implement monitor asis [41/41] target/sparc: Enable VIS4 feature bit

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20240302051601.53649-2-richard.henderson@linaro.org

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	atar4qemu@gmail.com
Subject: [PATCH 01/41] linux-user/sparc: Add more hwcap bits for sparc64
Date: Fri,  1 Mar 2024 19:15:21 -1000
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Series

target/sparc: Implement VIS4 | expand

Commit Message

Richard Henderson March 2, 2024, 5:15 a.m. UTC

Supply HWCAP_SPARC_V8PLUS, HWCAP_SPARC_MUL32, HWCAP_SPARC_DIV32,
HWCAP_SPARC_POPC, HWCAP_SPARC_FSMULD, HWCAP_SPARC_VIS, HWCAP_SPARC_VIS2.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/elfload.c | 48 +++++++++++++++++++++++++++++++-------------
 1 file changed, 34 insertions(+), 14 deletions(-)

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index b8eef893d0..6041270f1c 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -963,24 +963,44 @@  const char *elf_hwcap2_str(uint32_t bit)
 #endif /* TARGET_ARM */
 
 #ifdef TARGET_SPARC
-#ifdef TARGET_SPARC64
 
-#define ELF_HWCAP  (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \
-                    | HWCAP_SPARC_MULDIV | HWCAP_SPARC_V9)
-#ifndef TARGET_ABI32
-#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS )
+#ifndef TARGET_SPARC64
+# define ELF_CLASS  ELFCLASS32
+# define ELF_ARCH   EM_SPARC
+#elif defined(TARGET_ABI32)
+# define ELF_CLASS  ELFCLASS32
+# define elf_check_arch(x) ((x) == EM_SPARC32PLUS || (x) == EM_SPARC)
 #else
-#define elf_check_arch(x) ( (x) == EM_SPARC32PLUS || (x) == EM_SPARC )
+# define ELF_CLASS  ELFCLASS64
+# define ELF_ARCH   EM_SPARCV9
 #endif
 
-#define ELF_CLASS   ELFCLASS64
-#define ELF_ARCH    EM_SPARCV9
-#else
-#define ELF_HWCAP  (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \
-                    | HWCAP_SPARC_MULDIV)
-#define ELF_CLASS   ELFCLASS32
-#define ELF_ARCH    EM_SPARC
-#endif /* TARGET_SPARC64 */
+#include "elf.h"
+
+#define ELF_HWCAP get_elf_hwcap()
+
+static uint32_t get_elf_hwcap(void)
+{
+    /* There are not many sparc32 hwcap bits -- we have all of them. */
+    uint32_t r = HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
+                 HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV;
+
+#ifdef TARGET_SPARC64
+    CPUSPARCState *env = cpu_env(thread_cpu);
+    uint32_t features = env->def.features;
+
+    r |= HWCAP_SPARC_V9 | HWCAP_SPARC_V8PLUS;
+    /* 32x32 multiply and divide are efficient. */
+    r |= HWCAP_SPARC_MUL32 | HWCAP_SPARC_DIV32;
+    /* We don't have an internal feature bit for this. */
+    r |= HWCAP_SPARC_POPC;
+    r |= features & CPU_FEATURE_FSMULD ? HWCAP_SPARC_FSMULD : 0;
+    r |= features & CPU_FEATURE_VIS1 ? HWCAP_SPARC_VIS : 0;
+    r |= features & CPU_FEATURE_VIS2 ? HWCAP_SPARC_VIS2 : 0;
+#endif
+
+    return r;
+}
 
 static inline void init_thread(struct target_pt_regs *regs,
                                struct image_info *infop)

[01/41] linux-user/sparc: Add more hwcap bits for sparc64

Commit Message

Patch