From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org
Subject: [PATCH v2 54/71] target/arm: Implement PSEL
Date: Tue, 7 Jun 2022 13:32:49 -0700 [thread overview]
Message-ID: <20220607203306.657998-55-richard.henderson@linaro.org> (raw)
In-Reply-To: <20220607203306.657998-1-richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/translate-sve.c | 57 ++++++++++++++++++++++++++++++++++++++
target/arm/sve.decode | 20 +++++++++++++
2 files changed, 77 insertions(+)
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index adf0cd3e68..58d0894e15 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -7379,3 +7379,60 @@ static bool do_BFMLAL_zzxw(DisasContext *s, arg_rrxr_esz *a, bool sel)
TRANS_FEAT(BFMLALB_zzxw, aa64_sve_bf16, do_BFMLAL_zzxw, a, false)
TRANS_FEAT(BFMLALT_zzxw, aa64_sve_bf16, do_BFMLAL_zzxw, a, true)
+
+static bool trans_PSEL(DisasContext *s, arg_psel *a)
+{
+ int vl = vec_full_reg_size(s);
+ int pl = pred_gvec_reg_size(s);
+ int elements = vl >> a->esz;
+ TCGv_i64 tmp, didx, dbit;
+ TCGv_ptr ptr;
+
+ if (!dc_isar_feature(aa64_sme, s)) {
+ return false;
+ }
+ if (!sve_access_check(s)) {
+ return true;
+ }
+
+ tmp = tcg_temp_new_i64();
+ dbit = tcg_temp_new_i64();
+ didx = tcg_temp_new_i64();
+ ptr = tcg_temp_new_ptr();
+
+ /* Compute the predicate element. */
+ tcg_gen_addi_i64(tmp, cpu_reg(s, a->rv), a->imm);
+ if (is_power_of_2(elements)) {
+ tcg_gen_andi_i64(tmp, tmp, elements - 1);
+ } else {
+ tcg_gen_remu_i64(tmp, tmp, tcg_constant_i64(elements));
+ }
+
+ /* Extract the predicate byte and bit indices. */
+ tcg_gen_shli_i64(tmp, tmp, a->esz);
+ tcg_gen_andi_i64(dbit, tmp, 7);
+ tcg_gen_shri_i64(didx, tmp, 3);
+ if (HOST_BIG_ENDIAN) {
+ tcg_gen_xori_i64(didx, didx, 7);
+ }
+
+ /* Load the predicate word. */
+ tcg_gen_trunc_i64_ptr(ptr, didx);
+ tcg_gen_add_ptr(ptr, ptr, cpu_env);
+ tcg_gen_ld8u_i64(tmp, ptr, pred_full_reg_offset(s, a->pm));
+
+ /* Extract the predicate bit and replicate to MO_64. */
+ tcg_gen_shr_i64(tmp, tmp, dbit);
+ tcg_gen_andi_i64(tmp, tmp, 1);
+ tcg_gen_neg_i64(tmp, tmp);
+
+ /* Apply to either copy the source, or write zeros. */
+ tcg_gen_gvec_ands(MO_64, pred_full_reg_offset(s, a->pd),
+ pred_full_reg_offset(s, a->pn), tmp, pl, pl);
+
+ tcg_temp_free_i64(tmp);
+ tcg_temp_free_i64(dbit);
+ tcg_temp_free_i64(didx);
+ tcg_temp_free_ptr(ptr);
+ return true;
+}
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index bbdaac6ac7..bf561c270a 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -1674,3 +1674,23 @@ BFMLALT_zzxw 01100100 11 1 ..... 0100.1 ..... ..... @rrxr_3a esz=2
### SVE2 floating-point bfloat16 dot-product (indexed)
BFDOT_zzxz 01100100 01 1 ..... 010000 ..... ..... @rrxr_2 esz=2
+
+### SVE broadcast predicate element
+
+&psel esz pd pn pm rv imm
+%psel_rv 16:2 !function=plus_12
+%psel_imm_b 22:2 19:2
+%psel_imm_h 22:2 20:1
+%psel_imm_s 22:2
+%psel_imm_d 23:1
+@psel ........ .. . ... .. .. pn:4 . pm:4 . pd:4 \
+ &psel rv=%psel_rv
+
+PSEL 00100101 .. 1 ..1 .. 01 .... 0 .... 0 .... \
+ @psel esz=0 imm=%psel_imm_b
+PSEL 00100101 .. 1 .10 .. 01 .... 0 .... 0 .... \
+ @psel esz=1 imm=%psel_imm_h
+PSEL 00100101 .. 1 100 .. 01 .... 0 .... 0 .... \
+ @psel esz=2 imm=%psel_imm_s
+PSEL 00100101 .1 1 000 .. 01 .... 0 .... 0 .... \
+ @psel esz=3 imm=%psel_imm_d
--
2.34.1
next prev parent reply other threads:[~2022-06-07 21:38 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-07 20:31 [PATCH v2 00/71] target/arm: Scalable Matrix Extension Richard Henderson
2022-06-07 20:31 ` [PATCH v2 01/71] target/arm: Rename TBFLAG_A64 ZCR_LEN to VL Richard Henderson
2022-06-07 20:31 ` [PATCH v2 02/71] linux-user/aarch64: Introduce sve_vq Richard Henderson
2022-06-07 20:31 ` [PATCH v2 03/71] target/arm: Remove route_to_el2 check from sve_exception_el Richard Henderson
2022-06-07 20:31 ` [PATCH v2 04/71] target/arm: Remove fp checks " Richard Henderson
2022-06-07 20:32 ` [PATCH v2 05/71] target/arm: Add el_is_in_host Richard Henderson
2022-06-07 20:32 ` [PATCH v2 06/71] target/arm: Use el_is_in_host for sve_zcr_len_for_el Richard Henderson
2022-06-07 20:32 ` [PATCH v2 07/71] target/arm: Use el_is_in_host for sve_exception_el Richard Henderson
2022-06-07 20:32 ` [PATCH v2 08/71] target/arm: Hoist arm_is_el2_enabled check in sve_exception_el Richard Henderson
2022-06-07 20:32 ` [PATCH v2 09/71] target/arm: Do not use aarch64_sve_zcr_get_valid_len in reset Richard Henderson
2022-06-07 20:32 ` [PATCH v2 10/71] target/arm: Merge aarch64_sve_zcr_get_valid_len into caller Richard Henderson
2022-06-07 20:32 ` [PATCH v2 11/71] target/arm: Use uint32_t instead of bitmap for sve vq's Richard Henderson
2022-06-07 20:32 ` [PATCH v2 12/71] target/arm: Rename sve_zcr_len_for_el to sve_vqm1_for_el Richard Henderson
2022-06-07 20:32 ` [PATCH v2 13/71] target/arm: Split out load/store primitives to sve_ldst_internal.h Richard Henderson
2022-06-07 20:32 ` [PATCH v2 14/71] target/arm: Export sve contiguous ldst support functions Richard Henderson
2022-06-07 20:32 ` [PATCH v2 15/71] target/arm: Move expand_pred_b to vec_internal.h Richard Henderson
2022-06-07 20:32 ` [PATCH v2 16/71] target/arm: Use expand_pred_b in mve_helper.c Richard Henderson
2022-06-07 20:32 ` [PATCH v2 17/71] target/arm: Move expand_pred_h to vec_internal.h Richard Henderson
2022-06-07 20:32 ` [PATCH v2 18/71] target/arm: Export bfdotadd from vec_helper.c Richard Henderson
2022-06-07 20:32 ` [PATCH v2 19/71] target/arm: Add isar_feature_aa64_sme Richard Henderson
2022-06-07 20:32 ` [PATCH v2 20/71] target/arm: Add ID_AA64SMFR0_EL1 Richard Henderson
2022-06-07 20:32 ` [PATCH v2 21/71] target/arm: Implement TPIDR2_EL0 Richard Henderson
2022-06-09 15:24 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 22/71] target/arm: Add SMEEXC_EL to TB flags Richard Henderson
2022-06-07 20:32 ` [PATCH v2 23/71] target/arm: Add syn_smetrap Richard Henderson
2022-06-07 20:32 ` [PATCH v2 24/71] target/arm: Add ARM_CP_SME Richard Henderson
2022-06-07 20:32 ` [PATCH v2 25/71] target/arm: Add SVCR Richard Henderson
2022-06-09 15:25 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 26/71] target/arm: Add SMCR_ELx Richard Henderson
2022-06-07 20:32 ` [PATCH v2 27/71] target/arm: Add SMIDR_EL1, SMPRI_EL1, SMPRIMAP_EL2 Richard Henderson
2022-06-07 20:32 ` [PATCH v2 28/71] target/arm: Add PSTATE.{SM,ZA} to TB flags Richard Henderson
2022-06-07 20:32 ` [PATCH v2 29/71] target/arm: Add the SME ZA storage to CPUARMState Richard Henderson
2022-06-10 12:59 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 30/71] target/arm: Implement SMSTART, SMSTOP Richard Henderson
2022-06-07 20:32 ` [PATCH v2 31/71] target/arm: Move error for sve%d property to arm_cpu_sve_finalize Richard Henderson
2022-06-09 15:29 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 32/71] target/arm: Create ARMVQMap Richard Henderson
2022-06-09 15:30 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 33/71] target/arm: Generalize cpu_arm_{get,set}_vq Richard Henderson
2022-06-09 15:30 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 34/71] target/arm: Generalize cpu_arm_{get, set}_default_vec_len Richard Henderson
2022-06-09 15:31 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 35/71] target/arm: Move arm_cpu_*_finalize to internals.h Richard Henderson
2022-06-09 15:31 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 36/71] target/arm: Unexport aarch64_add_*_properties Richard Henderson
2022-06-09 15:32 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 37/71] target/arm: Add cpu properties for SME Richard Henderson
2022-06-09 15:32 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 38/71] target/arm: Introduce sve_vqm1_for_el_sm Richard Henderson
2022-06-09 15:33 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 39/71] target/arm: Add SVL to TB flags Richard Henderson
2022-06-09 15:33 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 40/71] target/arm: Move pred_{full, gvec}_reg_{offset, size} to translate-a64.h Richard Henderson
2022-06-09 15:34 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 41/71] target/arm: Add infrastructure for disas_sme Richard Henderson
2022-06-09 15:35 ` Peter Maydell
2022-06-09 22:58 ` Richard Henderson
2022-06-10 9:02 ` Peter Maydell
2022-06-07 20:32 ` [PATCH v2 42/71] target/arm: Trap AdvSIMD usage when Streaming SVE is active Richard Henderson
2022-06-07 20:32 ` [PATCH v2 43/71] target/arm: Implement SME RDSVL, ADDSVL, ADDSPL Richard Henderson
2022-06-07 20:32 ` [PATCH v2 44/71] target/arm: Implement SME ZERO Richard Henderson
2022-06-07 20:32 ` [PATCH v2 45/71] target/arm: Implement SME MOVA Richard Henderson
2022-06-07 20:32 ` [PATCH v2 46/71] target/arm: Implement SME LD1, ST1 Richard Henderson
2022-06-07 20:32 ` [PATCH v2 47/71] target/arm: Export unpredicated ld/st from translate-sve.c Richard Henderson
2022-06-07 20:32 ` [PATCH v2 48/71] target/arm: Implement SME LDR, STR Richard Henderson
2022-06-07 20:32 ` [PATCH v2 49/71] target/arm: Implement SME ADDHA, ADDVA Richard Henderson
2022-06-07 20:32 ` [PATCH v2 50/71] target/arm: Implement FMOPA, FMOPS (non-widening) Richard Henderson
2022-06-07 20:32 ` [PATCH v2 51/71] target/arm: Implement BFMOPA, BFMOPS Richard Henderson
2022-06-07 20:32 ` [PATCH v2 52/71] target/arm: Implement FMOPA, FMOPS (widening) Richard Henderson
2022-06-07 20:32 ` [PATCH v2 53/71] target/arm: Implement SME integer outer product Richard Henderson
2022-06-07 20:32 ` Richard Henderson [this message]
2022-06-07 20:32 ` [PATCH v2 55/71] target/arm: Implement REVD Richard Henderson
2022-06-07 20:32 ` [PATCH v2 56/71] target/arm: Implement SCLAMP, UCLAMP Richard Henderson
2022-06-07 20:32 ` [PATCH v2 57/71] target/arm: Reset streaming sve state on exception boundaries Richard Henderson
2022-06-07 20:32 ` [PATCH v2 58/71] target/arm: Enable SME for -cpu max Richard Henderson
2022-06-07 20:32 ` [PATCH v2 59/71] linux-user/aarch64: Clear tpidr2_el0 if CLONE_SETTLS Richard Henderson
2022-06-07 20:32 ` [PATCH v2 60/71] linux-user/aarch64: Reset PSTATE.SM on syscalls Richard Henderson
2022-06-07 20:32 ` [PATCH v2 61/71] linux-user/aarch64: Add SM bit to SVE signal context Richard Henderson
2022-06-07 20:32 ` [PATCH v2 62/71] linux-user/aarch64: Tidy target_restore_sigframe error return Richard Henderson
2022-06-07 20:32 ` [PATCH v2 63/71] linux-user/aarch64: Do not allow duplicate or short sve records Richard Henderson
2022-06-07 20:32 ` [PATCH v2 64/71] linux-user/aarch64: Verify extra record lock succeeded Richard Henderson
2022-06-07 20:33 ` [PATCH v2 65/71] linux-user/aarch64: Move sve record checks into restore Richard Henderson
2022-06-07 20:33 ` [PATCH v2 66/71] linux-user/aarch64: Implement SME signal handling Richard Henderson
2022-06-07 20:33 ` [PATCH v2 67/71] linux-user: Rename sve prctls Richard Henderson
2022-06-07 20:33 ` [PATCH v2 68/71] linux-user/aarch64: Implement PR_SME_GET_VL, PR_SME_SET_VL Richard Henderson
2022-06-07 20:33 ` [PATCH v2 69/71] target/arm: Only set ZEN in reset if SVE present Richard Henderson
2022-06-07 20:33 ` [PATCH v2 70/71] target/arm: Enable SME for user-only Richard Henderson
2022-06-07 20:33 ` [PATCH v2 71/71] linux-user/aarch64: Add SME related hwcap entries Richard Henderson
2022-06-09 15:22 ` [PATCH v2 00/71] target/arm: Scalable Matrix Extension Peter Maydell
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220607203306.657998-55-richard.henderson@linaro.org \
--to=richard.henderson@linaro.org \
--cc=peter.maydell@linaro.org \
--cc=qemu-arm@nongnu.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).