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Mon, 03 Jul 2023 21:49:52 +0000 Received: by hu-devc-sd-u20-a-1.qualcomm.com (Postfix, from userid 4229910) id DF13D7775; Mon, 3 Jul 2023 18:49:51 -0300 (-03) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=qcppdkim1; bh=36JR2Stk7m23rdZo/QT+jmR/0lcsmAnqYfZUaL4aOE0=; b=BYpmAQb2jaY/yvl9LNeBF6r/0/VUlYt5aqDcdnK0uhJoAtUpo72Aa5nK/05GTiid4WPa EeamwsTqOE7s72URh82V3NXljV10LSMkJ0gL2q/aKOydG9b9ZQB4HLsJsU0ZwIgUkeAG hdpdCQNeBUSWZu8ePG+Om+t2u7Wy+qYiR1JFvdjcmtJeIxJugC2LLc9ChXXdM+t/tGQb WISh1snwOqh72ccB2llpgf+UxK7FwJHCxiV5AN9set1ZLj5X231cF3X9bXzLoYQxBDie 8nfT+tyb8zg5PKuwuG9GNYkK4beO1veCiIidQdWluK8SsYPd1b5OnWk0Nq8aUx1geRN/ aQ== From: Matheus Tavares Bernardino To: qemu-devel@nongnu.org Cc: bcain@quicinc.com, quic_mliebel@quicinc.com, ltaylorsimpson@gmail.com Subject: [PATCH] Hexagon: move GETPC() calls to top level helpers Date: Mon, 3 Jul 2023 18:49:50 -0300 Message-Id: X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: zZ3t9K4zeTSMmI_rrRiXWMvAycYNeLmH X-Proofpoint-GUID: zZ3t9K4zeTSMmI_rrRiXWMvAycYNeLmH X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-03_15,2023-06-30_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 lowpriorityscore=0 clxscore=1011 priorityscore=1501 impostorscore=0 spamscore=0 phishscore=0 malwarescore=0 mlxscore=0 adultscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2307030200 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.168.131; envelope-from=mathbern@qualcomm.com; helo=mx0a-0031df01.pphosted.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @quicinc.com) X-ZM-MESSAGEID: 1688421041871100001 Content-Type: text/plain; charset="utf-8" As docs/devel/loads-stores.rst states: ``GETPC()`` should be used with great care: calling it in other functions that are *not* the top level ``HELPER(foo)`` will cause unexpected behavior. Instead, the value of ``GETPC()`` should be read from the helper and passed if needed to the functions that the helper calls. Let's fix the GETPC() usage in Hexagon, making sure it's always called from top level helpers and passed down to the places where it's needed. There are two snippets where that is not currently the case: - probe_store(), which is only called from two helpers, so it's easy to move GETPC() up. - mem_load*() functions, which are also called directly from helpers, but through the MEM_LOAD*() set of macros. Note that this are only used when compiling with --disable-hexagon-idef-parser. In this case, we also take this opportunity to simplify the code, unifying the mem_load*() functions. Signed-off-by: Matheus Tavares Bernardino Reviewed-by: Brian Cain --- target/hexagon/macros.h | 22 ++++++++++------- target/hexagon/op_helper.h | 11 ++------- target/hexagon/op_helper.c | 49 +++++++------------------------------- 3 files changed, 25 insertions(+), 57 deletions(-) diff --git a/target/hexagon/macros.h b/target/hexagon/macros.h index 5451b061ee..efb8013912 100644 --- a/target/hexagon/macros.h +++ b/target/hexagon/macros.h @@ -173,14 +173,20 @@ #define MEM_STORE8(VA, DATA, SLOT) \ MEM_STORE8_FUNC(DATA)(cpu_env, VA, DATA, SLOT) #else -#define MEM_LOAD1s(VA) ((int8_t)mem_load1(env, pkt_has_store_s1, slot, VA)) -#define MEM_LOAD1u(VA) ((uint8_t)mem_load1(env, pkt_has_store_s1, slot, VA= )) -#define MEM_LOAD2s(VA) ((int16_t)mem_load2(env, pkt_has_store_s1, slot, VA= )) -#define MEM_LOAD2u(VA) ((uint16_t)mem_load2(env, pkt_has_store_s1, slot, V= A)) -#define MEM_LOAD4s(VA) ((int32_t)mem_load4(env, pkt_has_store_s1, slot, VA= )) -#define MEM_LOAD4u(VA) ((uint32_t)mem_load4(env, pkt_has_store_s1, slot, V= A)) -#define MEM_LOAD8s(VA) ((int64_t)mem_load8(env, pkt_has_store_s1, slot, VA= )) -#define MEM_LOAD8u(VA) ((uint64_t)mem_load8(env, pkt_has_store_s1, slot, V= A)) + +#define MEM_LOADn(SIZE, VA) ({ \ + check_noshuf(env, pkt_has_store_s1, slot, VA, SIZE); \ + cpu_ldub_data_ra(env, VA, GETPC()); \ +}) + +#define MEM_LOAD1s(VA) ((int8_t)MEM_LOADn(1, VA)) +#define MEM_LOAD1u(VA) ((uint8_t)MEM_LOADn(1, VA)) +#define MEM_LOAD2s(VA) ((int16_t)MEM_LOADn(2, VA)) +#define MEM_LOAD2u(VA) ((uint16_t)MEM_LOADn(2, VA)) +#define MEM_LOAD4s(VA) ((int32_t)MEM_LOADn(4, VA)) +#define MEM_LOAD4u(VA) ((uint32_t)MEM_LOADn(4, VA)) +#define MEM_LOAD8s(VA) ((int64_t)MEM_LOADn(8, VA)) +#define MEM_LOAD8u(VA) ((uint64_t)MEM_LOADn(8, VA)) =20 #define MEM_STORE1(VA, DATA, SLOT) log_store32(env, VA, DATA, 1, SLOT) #define MEM_STORE2(VA, DATA, SLOT) log_store32(env, VA, DATA, 2, SLOT) diff --git a/target/hexagon/op_helper.h b/target/hexagon/op_helper.h index 8f3764d15e..845c3d197e 100644 --- a/target/hexagon/op_helper.h +++ b/target/hexagon/op_helper.h @@ -19,15 +19,8 @@ #define HEXAGON_OP_HELPER_H =20 /* Misc functions */ -uint8_t mem_load1(CPUHexagonState *env, bool pkt_has_store_s1, - uint32_t slot, target_ulong vaddr); -uint16_t mem_load2(CPUHexagonState *env, bool pkt_has_store_s1, - uint32_t slot, target_ulong vaddr); -uint32_t mem_load4(CPUHexagonState *env, bool pkt_has_store_s1, - uint32_t slot, target_ulong vaddr); -uint64_t mem_load8(CPUHexagonState *env, bool pkt_has_store_s1, - uint32_t slot, target_ulong vaddr); - +void check_noshuf(CPUHexagonState *env, bool pkt_has_store_s1, + uint32_t slot, target_ulong vaddr, int size); void log_store64(CPUHexagonState *env, target_ulong addr, int64_t val, int width, int slot); void log_store32(CPUHexagonState *env, target_ulong addr, diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c index 12967ac21e..1bc9c7fc2e 100644 --- a/target/hexagon/op_helper.c +++ b/target/hexagon/op_helper.c @@ -467,13 +467,12 @@ int32_t HELPER(cabacdecbin_pred)(int64_t RssV, int64_= t RttV) } =20 static void probe_store(CPUHexagonState *env, int slot, int mmu_idx, - bool is_predicated) + bool is_predicated, uintptr_t retaddr) { if (!is_predicated || !(env->slot_cancelled & (1 << slot))) { size1u_t width =3D env->mem_log_stores[slot].width; target_ulong va =3D env->mem_log_stores[slot].va; - uintptr_t ra =3D GETPC(); - probe_write(env, va, width, mmu_idx, ra); + probe_write(env, va, width, mmu_idx, retaddr); } } =20 @@ -494,7 +493,8 @@ void HELPER(probe_pkt_scalar_store_s0)(CPUHexagonState = *env, int args) int mmu_idx =3D FIELD_EX32(args, PROBE_PKT_SCALAR_STORE_S0, MMU_IDX); bool is_predicated =3D FIELD_EX32(args, PROBE_PKT_SCALAR_STORE_S0, IS_PREDICATED); - probe_store(env, 0, mmu_idx, is_predicated); + uintptr_t ra =3D GETPC(); + probe_store(env, 0, mmu_idx, is_predicated, ra); } =20 void HELPER(probe_hvx_stores)(CPUHexagonState *env, int mmu_idx) @@ -547,12 +547,13 @@ void HELPER(probe_pkt_scalar_hvx_stores)(CPUHexagonSt= ate *env, int mask) bool s0_is_pred =3D FIELD_EX32(mask, PROBE_PKT_SCALAR_HVX_STORES, S0_I= S_PRED); bool s1_is_pred =3D FIELD_EX32(mask, PROBE_PKT_SCALAR_HVX_STORES, S1_I= S_PRED); int mmu_idx =3D FIELD_EX32(mask, PROBE_PKT_SCALAR_HVX_STORES, MMU_IDX); + uintptr_t ra =3D GETPC(); =20 if (has_st0) { - probe_store(env, 0, mmu_idx, s0_is_pred); + probe_store(env, 0, mmu_idx, s0_is_pred, ra); } if (has_st1) { - probe_store(env, 1, mmu_idx, s1_is_pred); + probe_store(env, 1, mmu_idx, s1_is_pred, ra); } if (has_hvx_stores) { HELPER(probe_hvx_stores)(env, mmu_idx); @@ -566,8 +567,8 @@ void HELPER(probe_pkt_scalar_hvx_stores)(CPUHexagonStat= e *env, int mask) * If the load is in slot 0 and there is a store in slot1 (that * wasn't cancelled), we have to do the store first. */ -static void check_noshuf(CPUHexagonState *env, bool pkt_has_store_s1, - uint32_t slot, target_ulong vaddr, int size) +void check_noshuf(CPUHexagonState *env, bool pkt_has_store_s1, + uint32_t slot, target_ulong vaddr, int size) { if (slot =3D=3D 0 && pkt_has_store_s1 && ((env->slot_cancelled & (1 << 1)) =3D=3D 0)) { @@ -576,38 +577,6 @@ static void check_noshuf(CPUHexagonState *env, bool pk= t_has_store_s1, } } =20 -uint8_t mem_load1(CPUHexagonState *env, bool pkt_has_store_s1, - uint32_t slot, target_ulong vaddr) -{ - uintptr_t ra =3D GETPC(); - check_noshuf(env, pkt_has_store_s1, slot, vaddr, 1); - return cpu_ldub_data_ra(env, vaddr, ra); -} - -uint16_t mem_load2(CPUHexagonState *env, bool pkt_has_store_s1, - uint32_t slot, target_ulong vaddr) -{ - uintptr_t ra =3D GETPC(); - check_noshuf(env, pkt_has_store_s1, slot, vaddr, 2); - return cpu_lduw_data_ra(env, vaddr, ra); -} - -uint32_t mem_load4(CPUHexagonState *env, bool pkt_has_store_s1, - uint32_t slot, target_ulong vaddr) -{ - uintptr_t ra =3D GETPC(); - check_noshuf(env, pkt_has_store_s1, slot, vaddr, 4); - return cpu_ldl_data_ra(env, vaddr, ra); -} - -uint64_t mem_load8(CPUHexagonState *env, bool pkt_has_store_s1, - uint32_t slot, target_ulong vaddr) -{ - uintptr_t ra =3D GETPC(); - check_noshuf(env, pkt_has_store_s1, slot, vaddr, 8); - return cpu_ldq_data_ra(env, vaddr, ra); -} - /* Floating point */ float64 HELPER(conv_sf2df)(CPUHexagonState *env, float32 RsV) { --=20 2.37.2