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h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ouv86xrunx1hWKwE1JD3OtriQEfIIJm6YVMRLDH9DXk=; b=usCLG4kd+Nx9bZqCoMyBfu92HWNH49GQcYkV3ogC0Ucd1vb4G/CULFLe Ks+1lJpOGTe86dji24ihZ3H4b+KAcwwXg1ktCdyoPMiqflt5KZxv6lv+A FjmNHAEl0RERjjesuB8zVfw3Ua5b6cEetVfThppXS22KSrGpIX0m+6Dtm 4=; From: Taylor Simpson To: qemu-devel@nongnu.org Subject: [RFC PATCH v2 61/67] Hexagon HVX instruction utility functions Date: Fri, 28 Feb 2020 10:43:57 -0600 Message-Id: <1582908244-304-62-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: 199.106.114.39 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) Functions to support scatter/gather Signed-off-by: Taylor Simpson --- target/hexagon/mmvec/system_ext_mmvec.h | 38 +++++ target/hexagon/mmvec/system_ext_mmvec.c | 263 ++++++++++++++++++++++++++++= ++++ 2 files changed, 301 insertions(+) create mode 100644 target/hexagon/mmvec/system_ext_mmvec.h create mode 100644 target/hexagon/mmvec/system_ext_mmvec.c diff --git a/target/hexagon/mmvec/system_ext_mmvec.h b/target/hexagon/mmvec= /system_ext_mmvec.h new file mode 100644 index 0000000..4f35966 --- /dev/null +++ b/target/hexagon/mmvec/system_ext_mmvec.h @@ -0,0 +1,38 @@ +/* + * Copyright(c) 2019-2020 Qualcomm Innovation Center, Inc. All Rights Res= erved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#ifndef HEXAGON_SYSTEM_EXT_MMVEC_H +#define HEXAGON_SYSTEM_EXT_MMVEC_H + +extern void mem_load_vector_oddva(CPUHexagonState *env, vaddr_t vaddr, + vaddr_t lookup_vaddr, int slot, int size, + size1u_t *data, int use_full_va); +extern void mem_store_vector_oddva(CPUHexagonState *env, vaddr_t vaddr, + vaddr_t lookup_vaddr, int slot, int size, + size1u_t *data, size1u_t* mask, unsigned inver= t, + int use_full_va); +extern void mem_vector_scatter_init(CPUHexagonState *env, int slot, + vaddr_t base_vaddr, int length, + int element_size); +extern void mem_vector_scatter_finish(CPUHexagonState *env, int slot, int = op); +extern void mem_vector_gather_finish(CPUHexagonState *env, int slot); +extern void mem_vector_gather_init(CPUHexagonState *env, int slot, + vaddr_t base_vaddr, int length, + int element_size); + + +#endif diff --git a/target/hexagon/mmvec/system_ext_mmvec.c b/target/hexagon/mmvec= /system_ext_mmvec.c new file mode 100644 index 0000000..e0df96e --- /dev/null +++ b/target/hexagon/mmvec/system_ext_mmvec.c @@ -0,0 +1,263 @@ +/* + * Copyright(c) 2019-2020 Qualcomm Innovation Center, Inc. All Rights Res= erved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#include "qemu/osdep.h" +#include "opcodes.h" +#include "insn.h" +#include "mmvec/macros.h" +#include "qemu.h" + +#define TYPE_LOAD 'L' +#define TYPE_STORE 'S' +#define TYPE_FETCH 'F' +#define TYPE_ICINVA 'I' + +enum mem_access_types { + access_type_INVALID =3D 0, + access_type_unknown =3D 1, + access_type_load =3D 2, + access_type_store =3D 3, + access_type_fetch =3D 4, + access_type_dczeroa =3D 5, + access_type_dccleana =3D 6, + access_type_dcinva =3D 7, + access_type_dccleaninva =3D 8, + access_type_icinva =3D 9, + access_type_ictagr =3D 10, + access_type_ictagw =3D 11, + access_type_icdatar =3D 12, + access_type_dcfetch =3D 13, + access_type_l2fetch =3D 14, + access_type_l2cleanidx =3D 15, + access_type_l2cleaninvidx =3D 16, + access_type_l2tagr =3D 17, + access_type_l2tagw =3D 18, + access_type_dccleanidx =3D 19, + access_type_dcinvidx =3D 20, + access_type_dccleaninvidx =3D 21, + access_type_dctagr =3D 22, + access_type_dctagw =3D 23, + access_type_k0unlock =3D 24, + access_type_l2locka =3D 25, + access_type_l2unlocka =3D 26, + access_type_l2kill =3D 27, + access_type_l2gclean =3D 28, + access_type_l2gcleaninv =3D 29, + access_type_l2gunlock =3D 30, + access_type_synch =3D 31, + access_type_isync =3D 32, + access_type_pause =3D 33, + access_type_load_phys =3D 34, + access_type_load_locked =3D 35, + access_type_store_conditional =3D 36, + access_type_barrier =3D 37, + access_type_memcpy_load =3D 39, + access_type_memcpy_store =3D 40, + + NUM_CORE_ACCESS_TYPES +}; + +enum ext_mem_access_types { + access_type_vload =3D NUM_CORE_ACCESS_TYPES, + access_type_vstore, + access_type_vload_nt, + access_type_vstore_nt, + access_type_vgather_load, + access_type_vscatter_store, + access_type_vscatter_release, + access_type_vgather_release, + access_type_vfetch, + NUM_EXT_ACCESS_TYPES +}; + +static inline +target_ulong mem_init_access(CPUHexagonState *env, int slot, size4u_t vadd= r, + int width, enum mem_access_types mtype, + int type_for_xlate) +{ +#ifdef CONFIG_USER_ONLY + /* Nothing to do for Linux user mode in qemu */ + return vaddr; +#else +#error System mode not yet implemented for Hexagon +#endif +} + +static inline int check_gather_store(CPUHexagonState *env) +{ + /* First check to see if temp vreg has been updated */ + int check =3D env->gather_issued; + check &=3D env->is_gather_store_insn; + + /* In case we don't have store, suppress gather */ + if (!check) { + env->gather_issued =3D 0; + env->vtcm_pending =3D 0; /* Suppress any gather writes to memory= */ + } + return check; +} + +void mem_store_vector_oddva(CPUHexagonState *env, vaddr_t vaddr, + vaddr_t lookup_vaddr, int slot, int size, + size1u_t *data, size1u_t *mask, unsigned inver= t, + int use_full_va) +{ + int i; + + if (!use_full_va) { + lookup_vaddr =3D vaddr; + } + + if (!size) { + return; + } + + int is_gather_store =3D check_gather_store(env); + if (is_gather_store) { + memcpy(data, &env->tmp_VRegs[0].ub[0], size); + env->VRegs_updated_tmp =3D 0; + env->gather_issued =3D 0; + } + + /* + * If it's a gather store update store data from temporary register + * And clear flag + */ + env->vstore_pending[slot] =3D 1; + env->vstore[slot].va =3D vaddr; + env->vstore[slot].size =3D size; + memcpy(&env->vstore[slot].data.ub[0], data, size); + if (!mask) { + memset(&env->vstore[slot].mask.ub[0], invert ? 0 : -1, size); + } else if (invert) { + for (i =3D 0; i < size; i++) { + env->vstore[slot].mask.ub[i] =3D !mask[i]; + } + } else { + memcpy(&env->vstore[slot].mask.ub[0], mask, size); + } + /* On a gather store, overwrite the store mask to emulate dropped gath= ers */ + if (is_gather_store) { + memcpy(&env->vstore[slot].mask.ub[0], &env->vtcm_log.mask.ub[0], s= ize); + } + for (i =3D 0; i < size; i++) { + env->mem_access[slot].cdata[i] =3D data[i]; + } +} + +void mem_load_vector_oddva(CPUHexagonState *env, vaddr_t vaddr, + vaddr_t lookup_vaddr, int slot, int size, + size1u_t *data, int use_full_va) +{ + int i; + + if (!use_full_va) { + lookup_vaddr =3D vaddr; + } + + if (!size) { + return; + } + + for (i =3D 0; i < size; i++) { + get_user_u8(data[i], vaddr); + vaddr++; + } +} + +void mem_vector_scatter_init(CPUHexagonState *env, int slot, vaddr_t base_= vaddr, + int length, int element_size) +{ + enum ext_mem_access_types access_type =3D access_type_vscatter_store; + int i; + + /* Translation for Store Address on Slot 1 - maybe any slot? */ + mem_init_access(env, slot, base_vaddr, 1, access_type, TYPE_STORE); + mem_access_info_t *maptr =3D &env->mem_access[slot]; + if (EXCEPTION_DETECTED) { + return; + } + + maptr->range =3D length; + + for (i =3D 0; i < fVECSIZE(); i++) { + env->vtcm_log.offsets.ub[i] =3D 0; /* Mark invalid */ + env->vtcm_log.data.ub[i] =3D 0; + env->vtcm_log.mask.ub[i] =3D 0; + } + env->vtcm_log.va_base =3D base_vaddr; + + env->vtcm_pending =3D 1; + env->vtcm_log.oob_access =3D 0; + env->vtcm_log.op =3D 0; + env->vtcm_log.op_size =3D 0; + return; +} + +void mem_vector_gather_init(CPUHexagonState *env, int slot, vaddr_t base_v= addr, + int length, int element_size) +{ + enum ext_mem_access_types access_type =3D access_type_vgather_load; + int i; + + mem_init_access(env, slot, base_vaddr, 1, access_type, TYPE_LOAD); + mem_access_info_t *maptr =3D &env->mem_access[slot]; + + if (EXCEPTION_DETECTED) { + return; + } + + maptr->range =3D length; + + for (i =3D 0; i < 2 * fVECSIZE(); i++) { + env->vtcm_log.offsets.ub[i] =3D 0x0; + } + for (i =3D 0; i < fVECSIZE(); i++) { + env->vtcm_log.data.ub[i] =3D 0; + env->vtcm_log.mask.ub[i] =3D 0; + env->vtcm_log.va[i] =3D 0; + env->tmp_VRegs[0].ub[i] =3D 0; + } + env->vtcm_log.oob_access =3D 0; + env->vtcm_log.op =3D 0; + env->vtcm_log.op_size =3D 0; + + env->vtcm_log.va_base =3D base_vaddr; + + /* + * Temp Reg gets updated + * This allows Store .new to grab the correct result + */ + env->VRegs_updated_tmp =3D 1; + env->gather_issued =3D 1; + + return; +} + +void mem_vector_scatter_finish(CPUHexagonState *env, int slot, int op) +{ + env->store_pending[slot] =3D 0; + env->vstore_pending[slot] =3D 0; + env->vtcm_log.size =3D fVECSIZE(); + + memcpy(env->mem_access[slot].cdata, &env->vtcm_log.offsets.ub[0], 256); +} + +void mem_vector_gather_finish(CPUHexagonState *env, int slot) +{ + memcpy(env->mem_access[slot].cdata, &env->vtcm_log.offsets.ub[0], 256); +} --=20 2.7.4