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From: Artyom Tarasenko <atar4qemu@gmail.com>
To: peter.maydell@linaro.org
Cc: qemu-devel@nongnu.org, mark.cave-ayland@ilande.co.uk,
	rth@twiddle.net, Artyom Tarasenko <atar4qemu@gmail.com>
Subject: [Qemu-devel] [PULL 27/30] target-sparc: add ST_BLKINIT_ ASIs for UA2005+ CPUs
Date: Wed, 18 Jan 2017 23:38:40 +0100	[thread overview]
Message-ID: <1484779123-18968-28-git-send-email-atar4qemu@gmail.com> (raw)
In-Reply-To: <1484779123-18968-1-git-send-email-atar4qemu@gmail.com>

In OpenSPARC T1+ TWINX ASIs in store instructions are aliased
with Block Initializing Store ASIs.

"UltraSPARC T1 Supplement Draft D2.1, 14 May 2007" describes them
in the chapter "5.9 Block Initializing Store ASIs"

Integer stores of all sizes are allowed with these ASIs.

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
---
 target/sparc/translate.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index 0f20ed0..655060c 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -2321,8 +2321,19 @@ static void gen_st_asi(DisasContext *dc, TCGv src, TCGv addr,
     case GET_ASI_EXCP:
         break;
     case GET_ASI_DTWINX: /* Reserved for stda.  */
+#ifndef TARGET_SPARC64
         gen_exception(dc, TT_ILL_INSN);
         break;
+#else
+        if (!(dc->def->features & CPU_FEATURE_HYPV)) {
+            /* Pre OpenSPARC CPUs don't have these */
+            gen_exception(dc, TT_ILL_INSN);
+            return;
+        }
+        /* in OpenSPARC T1+ CPUs TWINX ASIs in store instructions
+         * are ST_BLKINIT_ ASIs */
+        /* fall through */
+#endif
     case GET_ASI_DIRECT:
         gen_address_mask(dc, addr);
         tcg_gen_qemu_st_tl(src, addr, da.mem_idx, da.memop);
-- 
2.7.2

  parent reply	other threads:[~2017-01-18 22:39 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-18 22:38 [Qemu-devel] [PULL 00/30] target-sparc sun4v support Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 01/30] target-sparc: ignore MMU-faults if MMU is disabled in hypervisor mode Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 02/30] target-sparc: store cpu super- and hypervisor flags in TB Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 03/30] target-sparc: use explicit mmu register pointers Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 04/30] target-sparc: add UA2005 TTE bit #defines Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 05/30] target-sparc: add UltraSPARC T1 TLB #defines Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 06/30] target-sparc: on UA2005 don't deliver Interrupt_level_n IRQs in hypervisor mode Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 07/30] target-sparc: simplify replace_tlb_entry by using TTE_PGSIZE Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 08/30] target-sparc: implement UA2005 scratchpad registers Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 09/30] target-sparc: implement UltraSPARC-T1 Strand status ASR Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 10/30] target-sparc: hypervisor mode takes over nucleus mode Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 11/30] target-sparc: implement UA2005 hypervisor traps Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 12/30] target-sparc: implement UA2005 GL register Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 13/30] target-sparc: implement UA2005 rdhpstate and wrhpstate instructions Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 14/30] target-sparc: fix immediate UA2005 traps Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 15/30] target-sparc: use direct address translation in hyperprivileged mode Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 16/30] target-sparc: allow priveleged ASIs " Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 17/30] target-sparc: ignore writes to UA2005 CPU mondo queue register Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 18/30] target-sparc: replace the last tlb entry when no free entries left Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 19/30] target-sparc: use SparcV9MMU type for sparc64 I/D-MMUs Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 20/30] target-sparc: implement UA2005 TSB Pointers Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 21/30] target-sparc: simplify ultrasparc_tsb_pointer Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 22/30] target-sparc: allow 256M sized pages Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 23/30] target-sparc: implement auto-demapping for UA2005 CPUs Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 24/30] target-sparc: add more registers to dump_mmu Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 25/30] target-sparc: implement UA2005 ASI_MMU (0x21) Artyom Tarasenko
2017-01-18 22:38 ` Artyom Tarasenko [this message]
2017-01-18 22:38 ` [Qemu-devel] [PULL 28/30] target-sparc: implement sun4v RTC Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 29/30] target-sparc: move common cpu initialisation routines to sparc64.c Artyom Tarasenko
2017-01-18 22:38 ` [Qemu-devel] [PULL 30/30] target-sparc: fix up niagara machine Artyom Tarasenko
2017-01-23 12:40   ` Peter Maydell
2017-01-23 14:10     ` Artyom Tarasenko
2017-01-23 14:24       ` Peter Maydell
2017-01-23 14:59         ` Artyom Tarasenko
2017-01-23 15:05           ` Peter Maydell
2017-02-24 11:50         ` Peter Maydell
2017-02-24 12:35           ` Artyom Tarasenko
2017-01-27 15:07       ` Jakub Jermář
2017-01-19 19:21 ` [Qemu-devel] [PULL 00/30] target-sparc sun4v support Peter Maydell
  -- strict thread matches above, loose matches on Subject: below --
2017-01-12  2:55 Richard Henderson
2017-01-12  2:56 ` [Qemu-devel] [PULL 27/30] target-sparc: add ST_BLKINIT_ ASIs for UA2005+ CPUs Richard Henderson

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