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GET /api/1.0/patches/2221148/?format=api
{ "id": 2221148, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2221148/?format=api", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.0/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260408041953.1899532-3-brian.cain@oss.qualcomm.com>", "date": "2026-04-08T04:19:27", "name": "[v4,02/28] target/hexagon: Implement iassign{r,w} helpers", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "3e4e8700055caf35675adafbe99dc08a5995e800", "submitter": { "id": 89839, "url": "http://patchwork.ozlabs.org/api/1.0/people/89839/?format=api", "name": "Brian Cain", "email": "brian.cain@oss.qualcomm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260408041953.1899532-3-brian.cain@oss.qualcomm.com/mbox/", "series": [ { "id": 499179, "url": "http://patchwork.ozlabs.org/api/1.0/series/499179/?format=api", "date": "2026-04-08T04:19:31", "name": "Hexagon system emulation - Part 2/3", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/499179/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2221148/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=H0fkjJAB;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=QAysKq6C;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=mx0b-0031df01.pphosted.com", "X-Spam_score_int": "-27", "X-Spam_score": "-2.8", "X-Spam_bar": "--", "X-Spam_report": "(-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001,\n RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 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": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Brian Cain <bcain@quicinc.com>\n\niassign{r,w} are the \"Interrupt to thread assignment {read,write}\"\ninstructions.\n\nReviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>\nSigned-off-by: Brian Cain <brian.cain@oss.qualcomm.com>\n---\n target/hexagon/op_helper.c | 56 ++++++++++++++++++++++++++++++++++++--\n 1 file changed, 54 insertions(+), 2 deletions(-)", "diff": "diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c\nindex 04d9f1286c9..7e6e04e512a 100644\n--- a/target/hexagon/op_helper.c\n+++ b/target/hexagon/op_helper.c\n@@ -1416,12 +1416,64 @@ void HELPER(cswi)(CPUHexagonState *env, uint32_t mask)\n \n void HELPER(iassignw)(CPUHexagonState *env, uint32_t src)\n {\n- g_assert_not_reached();\n+ uint32_t modectl;\n+ uint32_t thread_enabled_mask;\n+ CPUState *cpu;\n+ HexagonCPU *hex_cpu;\n+\n+ BQL_LOCK_GUARD();\n+ hex_cpu = env_archcpu(env);\n+ modectl = hex_cpu->globalregs ?\n+ hexagon_globalreg_read(hex_cpu->globalregs, HEX_SREG_MODECTL,\n+ env->threadId) : 0;\n+ thread_enabled_mask = GET_FIELD(MODECTL_E, modectl);\n+\n+ CPU_FOREACH(cpu) {\n+ CPUHexagonState *thread_env = &(HEXAGON_CPU(cpu)->env);\n+ uint32_t thread_id_mask = 0x1 << thread_env->threadId;\n+ if (thread_enabled_mask & thread_id_mask) {\n+ uint32_t imask = thread_env->t_sreg[HEX_SREG_IMASK];\n+ uint32_t intbitpos = (src >> 16) & 0xF;\n+ uint32_t val = (src >> thread_env->threadId) & 0x1;\n+ imask = deposit32(imask, intbitpos, 1, val);\n+ thread_env->t_sreg[HEX_SREG_IMASK] = imask;\n+\n+ qemu_log_mask(CPU_LOG_INT, \"%s: thread \" TARGET_FMT_ld\n+ \", new imask 0x%\" PRIx32 \"\\n\", __func__,\n+ thread_env->threadId, imask);\n+ }\n+ }\n+ hex_interrupt_update(env);\n }\n \n uint32_t HELPER(iassignr)(CPUHexagonState *env, uint32_t src)\n {\n- g_assert_not_reached();\n+ uint32_t modectl;\n+ uint32_t thread_enabled_mask;\n+ uint32_t intbitpos;\n+ uint32_t dest_reg;\n+ CPUState *cpu;\n+ HexagonCPU *hex_cpu;\n+\n+ BQL_LOCK_GUARD();\n+ hex_cpu = env_archcpu(env);\n+ modectl = hex_cpu->globalregs ?\n+ hexagon_globalreg_read(hex_cpu->globalregs, HEX_SREG_MODECTL,\n+ env->threadId) : 0;\n+ thread_enabled_mask = GET_FIELD(MODECTL_E, modectl);\n+ /* src fields are in same position as modectl, but mean different things */\n+ intbitpos = GET_FIELD(MODECTL_W, src);\n+ dest_reg = 0;\n+ CPU_FOREACH(cpu) {\n+ CPUHexagonState *thread_env = &(HEXAGON_CPU(cpu)->env);\n+ uint32_t thread_id_mask = 0x1 << thread_env->threadId;\n+ if (thread_enabled_mask & thread_id_mask) {\n+ uint32_t imask = thread_env->t_sreg[HEX_SREG_IMASK];\n+ dest_reg |= ((imask >> intbitpos) & 0x1) << thread_env->threadId;\n+ }\n+ }\n+\n+ return dest_reg;\n }\n \n void HELPER(start)(CPUHexagonState *env, uint32_t imask)\n", "prefixes": [ "v4", "02/28" ] }