From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org,
david.spickett@linaro.org, steplong@quicinc.com
Subject: [PATCH v8 16/45] target/arm: Implement the STGP instruction
Date: Tue, 23 Jun 2020 12:36:29 -0700 [thread overview]
Message-ID: <20200623193658.623279-17-richard.henderson@linaro.org> (raw)
In-Reply-To: <20200623193658.623279-1-richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v3: Handle atomicity, require pre-cleaned address.
v6: Fix constant offset shift, non-checked address, use pre-computed ata.
---
target/arm/translate-a64.c | 29 ++++++++++++++++++++++++++---
1 file changed, 26 insertions(+), 3 deletions(-)
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index c6152b3cc0..5d8c9483bc 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -2690,7 +2690,7 @@ static void disas_ld_lit(DisasContext *s, uint32_t insn)
* +-----+-------+---+---+-------+---+-------+-------+------+------+
*
* opc: LDP/STP/LDNP/STNP 00 -> 32 bit, 10 -> 64 bit
- * LDPSW 01
+ * LDPSW/STGP 01
* LDP/STP/LDNP/STNP (SIMD) 00 -> 32 bit, 01 -> 64 bit, 10 -> 128 bit
* V: 0 -> GPR, 1 -> Vector
* idx: 00 -> signed offset with non-temporal hint, 01 -> post-index,
@@ -2715,6 +2715,7 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
bool is_signed = false;
bool postindex = false;
bool wback = false;
+ bool set_tag = false;
TCGv_i64 clean_addr, dirty_addr;
@@ -2727,6 +2728,14 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
if (is_vector) {
size = 2 + opc;
+ } else if (opc == 1 && !is_load) {
+ /* STGP */
+ if (!dc_isar_feature(aa64_mte_insn_reg, s) || index == 0) {
+ unallocated_encoding(s);
+ return;
+ }
+ size = 3;
+ set_tag = true;
} else {
size = 2 + extract32(opc, 1, 1);
is_signed = extract32(opc, 0, 1);
@@ -2767,7 +2776,7 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
return;
}
- offset <<= size;
+ offset <<= (set_tag ? LOG2_TAG_GRANULE : size);
if (rn == 31) {
gen_check_sp_alignment(s);
@@ -2777,8 +2786,22 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
if (!postindex) {
tcg_gen_addi_i64(dirty_addr, dirty_addr, offset);
}
- clean_addr = clean_data_tbi(s, dirty_addr);
+ if (set_tag) {
+ if (!s->ata) {
+ /*
+ * TODO: We could rely on the stores below, at least for
+ * system mode, if we arrange to add MO_ALIGN_16.
+ */
+ gen_helper_stg_stub(cpu_env, dirty_addr);
+ } else if (tb_cflags(s->base.tb) & CF_PARALLEL) {
+ gen_helper_stg_parallel(cpu_env, dirty_addr, dirty_addr);
+ } else {
+ gen_helper_stg(cpu_env, dirty_addr, dirty_addr);
+ }
+ }
+
+ clean_addr = clean_data_tbi(s, dirty_addr);
if (is_vector) {
if (is_load) {
do_fp_ld(s, rt, clean_addr, size);
--
2.25.1
next prev parent reply other threads:[~2020-06-23 19:49 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 19:36 [PATCH v8 00/45] target/arm: Implement ARMv8.5-MemTag, system mode Richard Henderson
2020-06-23 19:36 ` [PATCH v8 01/45] target/arm: Add isar tests for mte Richard Henderson
2020-06-23 19:36 ` [PATCH v8 02/45] target/arm: Improve masking of SCR RES0 bits Richard Henderson
2020-06-23 19:36 ` [PATCH v8 03/45] target/arm: Add support for MTE to SCTLR_ELx Richard Henderson
2020-06-23 19:36 ` [PATCH v8 04/45] target/arm: Add support for MTE to HCR_EL2 and SCR_EL3 Richard Henderson
2020-06-23 19:36 ` [PATCH v8 05/45] target/arm: Rename DISAS_UPDATE to DISAS_UPDATE_EXIT Richard Henderson
2020-06-23 19:36 ` [PATCH v8 06/45] target/arm: Add DISAS_UPDATE_NOCHAIN Richard Henderson
2020-06-23 19:36 ` [PATCH v8 07/45] target/arm: Add MTE system registers Richard Henderson
2020-06-23 19:36 ` [PATCH v8 08/45] target/arm: Add MTE bits to tb_flags Richard Henderson
2020-06-23 19:36 ` [PATCH v8 09/45] target/arm: Implement the IRG instruction Richard Henderson
2020-06-23 19:36 ` [PATCH v8 10/45] target/arm: Revise decoding for disas_add_sub_imm Richard Henderson
2020-06-25 10:16 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 11/45] target/arm: Implement the ADDG, SUBG instructions Richard Henderson
2020-06-25 10:39 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 12/45] target/arm: Implement the GMI instruction Richard Henderson
2020-06-23 19:36 ` [PATCH v8 13/45] target/arm: Implement the SUBP instruction Richard Henderson
2020-06-23 19:36 ` [PATCH v8 14/45] target/arm: Define arm_cpu_do_unaligned_access for user-only Richard Henderson
2020-06-25 10:45 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 15/45] target/arm: Implement LDG, STG, ST2G instructions Richard Henderson
2020-06-25 10:48 ` Peter Maydell
2020-06-23 19:36 ` Richard Henderson [this message]
2020-06-23 19:36 ` [PATCH v8 17/45] target/arm: Restrict the values of DCZID.BS under TCG Richard Henderson
2020-06-23 19:36 ` [PATCH v8 18/45] target/arm: Simplify DC_ZVA Richard Henderson
2020-06-23 19:36 ` [PATCH v8 19/45] target/arm: Implement the LDGM, STGM, STZGM instructions Richard Henderson
2020-06-23 19:36 ` [PATCH v8 20/45] target/arm: Implement the access tag cache flushes Richard Henderson
2020-06-23 19:36 ` [PATCH v8 21/45] target/arm: Move regime_el to internals.h Richard Henderson
2020-06-23 19:36 ` [PATCH v8 22/45] target/arm: Move regime_tcr " Richard Henderson
2020-06-23 19:36 ` [PATCH v8 23/45] target/arm: Add gen_mte_check1 Richard Henderson
2020-06-23 19:36 ` [PATCH v8 24/45] target/arm: Add gen_mte_checkN Richard Henderson
2020-06-23 19:36 ` [PATCH v8 25/45] target/arm: Implement helper_mte_check1 Richard Henderson
2020-06-25 10:55 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 26/45] target/arm: Implement helper_mte_checkN Richard Henderson
2020-06-23 19:36 ` [PATCH v8 27/45] target/arm: Add helper_mte_check_zva Richard Henderson
2020-06-23 19:36 ` [PATCH v8 28/45] target/arm: Use mte_checkN for sve unpredicated loads Richard Henderson
2020-06-25 11:06 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 29/45] target/arm: Use mte_checkN for sve unpredicated stores Richard Henderson
2020-06-25 11:07 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 30/45] target/arm: Use mte_check1 for sve LD1R Richard Henderson
2020-06-25 11:12 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 31/45] target/arm: Tidy trans_LD1R_zpri Richard Henderson
2020-06-25 11:12 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 32/45] target/arm: Add arm_tlb_bti_gp Richard Henderson
2020-06-25 12:29 ` Peter Maydell
2020-06-25 18:59 ` Richard Henderson
2020-06-23 19:36 ` [PATCH v8 33/45] target/arm: Add mte helpers for sve scalar + int loads Richard Henderson
2020-06-25 12:36 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 34/45] target/arm: Add mte helpers for sve scalar + int stores Richard Henderson
2020-06-25 12:37 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 35/45] target/arm: Add mte helpers for sve scalar + int ff/nf loads Richard Henderson
2020-06-25 12:38 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 36/45] target/arm: Handle TBI for sve scalar + int memory ops Richard Henderson
2020-06-25 12:40 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 37/45] target/arm: Add mte helpers for sve scatter/gather " Richard Henderson
2020-06-25 12:43 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 38/45] target/arm: Complete TBI clearing for user-only for SVE Richard Henderson
2020-06-25 12:52 ` Peter Maydell
2020-06-25 16:54 ` Richard Henderson
2020-06-25 17:07 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 39/45] target/arm: Implement data cache set allocation tags Richard Henderson
2020-06-23 19:36 ` [PATCH v8 40/45] target/arm: Set PSTATE.TCO on exception entry Richard Henderson
2020-06-23 19:36 ` [PATCH v8 41/45] target/arm: Always pass cacheattr to get_phys_addr Richard Henderson
2020-06-25 12:56 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 42/45] target/arm: Cache the Tagged bit for a page in MemTxAttrs Richard Henderson
2020-06-25 12:59 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 43/45] target/arm: Create tagged ram when MTE is enabled Richard Henderson
2020-06-25 13:26 ` Peter Maydell
2020-06-23 19:36 ` [PATCH v8 44/45] target/arm: Add allocation tag storage for system mode Richard Henderson
2020-06-25 13:03 ` Peter Maydell
2020-06-25 17:02 ` Richard Henderson
2020-06-25 17:09 ` Peter Maydell
2020-06-25 22:16 ` Richard Henderson
2020-06-23 19:36 ` [PATCH v8 45/45] target/arm: Enable MTE Richard Henderson
2020-06-25 13:06 ` Peter Maydell
2020-06-23 19:55 ` [PATCH v8 00/45] target/arm: Implement ARMv8.5-MemTag, system mode Derrick McKee
2020-06-23 20:06 ` Richard Henderson
2020-06-23 20:30 ` no-reply
2020-06-25 13:28 ` Peter Maydell
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