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h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=5dtSBjj52Ssvq6HI1Wg5nGX10+YCefffGSRX4qMo3/c=; b=f/FCuev9XTrDAn+3BXxp2L/737yzR1rtMzBr4to/QXhWn2o/U8szaTsm RKCj9g7IkSxFU+59FOoklEf66cZAnv3O8O7rRsx5iJj4hSKfmVe/f++HU 2CmyzBV3r83BPIBcfoLDrg468t+oi6lOnA1AJXKvj2dwglxtGo01OFSkl k=; From: Taylor Simpson To: qemu-devel@nongnu.org Subject: [RFC PATCH v2 64/67] Hexagon HVX helper to commit vector stores (masked and scatter/gather) Date: Fri, 28 Feb 2020 10:44:00 -0600 Message-Id: <1582908244-304-65-git-send-email-tsimpson@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582908244-304-1-git-send-email-tsimpson@quicinc.com> References: <1582908244-304-1-git-send-email-tsimpson@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 199.106.114.38 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: riku.voipio@iki.fi, richard.henderson@linaro.org, laurent@vivier.eu, Taylor Simpson , philmd@redhat.com, aleksandar.m.mail@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Signed-off-by: Taylor Simpson --- target/hexagon/helper.h | 1 + target/hexagon/op_helper.c | 75 ++++++++++++++++++++++++++++++++++++++++++= ++++ 2 files changed, 76 insertions(+) diff --git a/target/hexagon/helper.h b/target/hexagon/helper.h index 8558da8..64e798b 100644 --- a/target/hexagon/helper.h +++ b/target/hexagon/helper.h @@ -21,6 +21,7 @@ DEF_HELPER_2(raise_exception, noreturn, env, i32) DEF_HELPER_1(debug_start_packet, void, env) DEF_HELPER_2(new_value, s32, env, int) DEF_HELPER_3(debug_check_store_width, void, env, int, int) +DEF_HELPER_1(commit_hvx_stores, void, env) DEF_HELPER_3(debug_commit_end, void, env, int, int) DEF_HELPER_3(sfrecipa_val, s32, env, s32, s32) DEF_HELPER_3(sfrecipa_pred, s32, env, s32, s32) diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c index d944d03..72250cc 100644 --- a/target/hexagon/op_helper.c +++ b/target/hexagon/op_helper.c @@ -26,6 +26,8 @@ #include "arch.h" #include "fma_emu.h" #include "conv_emu.h" +#include "mmvec/mmvec.h" +#include "mmvec/macros.h" =20 #if COUNT_HEX_HELPERS #include "opcodes.h" @@ -199,6 +201,51 @@ void HELPER(debug_check_store_width)(CPUHexagonState *= env, int slot, int check) } } =20 +void HELPER(commit_hvx_stores)(CPUHexagonState *env) +{ + int i; + + /* Normal (possibly masked) vector store */ + for (i =3D 0; i < VSTORES_MAX; i++) { + if (env->vstore_pending[i]) { + env->vstore_pending[i] =3D 0; + target_ulong va =3D env->vstore[i].va; + int size =3D env->vstore[i].size; + for (int j =3D 0; j < size; j++) { + if (env->vstore[i].mask.ub[j]) { + put_user_u8(env->vstore[i].data.ub[j], va + j); + } + } + } + } + + /* Scatter store */ + if (env->vtcm_pending) { + env->vtcm_pending =3D 0; + if (env->vtcm_log.op) { + /* Need to perform the scatter read/modify/write at commit tim= e */ + if (env->vtcm_log.op_size =3D=3D 2) { + SCATTER_OP_WRITE_TO_MEM(size2u_t); + } else if (env->vtcm_log.op_size =3D=3D 4) { + /* Word Scatter +=3D */ + SCATTER_OP_WRITE_TO_MEM(size4u_t); + } else { + g_assert_not_reached(); + } + } else { + for (int i =3D 0; i < env->vtcm_log.size; i++) { + if (env->vtcm_log.mask.ub[i] !=3D 0) { + put_user_u8(env->vtcm_log.data.ub[i], env->vtcm_log.va= [i]); + env->vtcm_log.mask.ub[i] =3D 0; + env->vtcm_log.data.ub[i] =3D 0; + env->vtcm_log.offsets.ub[i] =3D 0; + } + + } + } + } +} + static void print_store(CPUHexagonState *env, int slot) { if (!(env->slot_cancelled & (1 << slot))) { @@ -415,6 +462,34 @@ void HELPER(debug_value_i64)(CPUHexagonState *env, int= 64_t value) HEX_DEBUG_LOG("value =3D 0x%lx\n", value); } =20 +/* Log a write to HVX vector */ +static inline void log_vreg_write(CPUHexagonState *env, int num, void *var, + int vnew, uint32_t slot) +{ + HEX_DEBUG_LOG("log_vreg_write[%d]", num); + if (env->slot_cancelled & (1 << slot)) { + HEX_DEBUG_LOG(" CANCELLED"); + } + HEX_DEBUG_LOG("\n"); + + if (!(env->slot_cancelled & (1 << slot))) { + VRegMask regnum_mask =3D ((VRegMask)1) << num; + env->VRegs_updated |=3D (vnew !=3D EXT_TMP) ? regnum_mask : 0; + env->VRegs_select |=3D (vnew =3D=3D EXT_NEW) ? regnum_mask := 0; + env->VRegs_updated_tmp |=3D (vnew =3D=3D EXT_TMP) ? regnum_mask := 0; + env->future_VRegs[num] =3D *(mmvector_t *)var; + if (vnew =3D=3D EXT_TMP) { + env->tmp_VRegs[num] =3D env->future_VRegs[num]; + } + } +} + +static inline void log_mmvector_write(CPUHexagonState *env, int num, + mmvector_t var, int vnew, uint32_t s= lot) +{ + log_vreg_write(env, num, &var, vnew, slot); +} + static void cancel_slot(CPUHexagonState *env, uint32_t slot) { HEX_DEBUG_LOG("Slot %d cancelled\n", slot); --=20 2.7.4