{"id":2221189,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2221189/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260408042149.1902796-3-brian.cain@oss.qualcomm.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.1/projects/14/?format=json","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":"<20260408042149.1902796-3-brian.cain@oss.qualcomm.com>","date":"2026-04-08T04:21:41","name":"[v4,2/9] hw/hexagon: Add global register tracing","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"0172a0b9e476fd76de297bf161bb7a0a9e16880d","submitter":{"id":89839,"url":"http://patchwork.ozlabs.org/api/1.1/people/89839/?format=json","name":"Brian Cain","email":"brian.cain@oss.qualcomm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260408042149.1902796-3-brian.cain@oss.qualcomm.com/mbox/","series":[{"id":499184,"url":"http://patchwork.ozlabs.org/api/1.1/series/499184/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499184","date":"2026-04-08T04:21:47","name":"Hexagon system emulation - Part 3/3","version":4,"mbox":"http://patchwork.ozlabs.org/series/499184/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2221189/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2221189/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 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=?utf-8?q?Daniel_P=2E_Be?=\n\t=?utf-8?q?rrang=C3=A9?= <berrange@redhat.com>","Subject":"[PATCH v4 2/9] hw/hexagon: Add global register tracing","Date":"Tue,  7 Apr 2026 21:21:41 -0700","Message-Id":"<20260408042149.1902796-3-brian.cain@oss.qualcomm.com>","X-Mailer":"git-send-email 2.34.1","In-Reply-To":"<20260408042149.1902796-1-brian.cain@oss.qualcomm.com>","References":"<20260408042149.1902796-1-brian.cain@oss.qualcomm.com>","MIME-Version":"1.0","Content-Type":["text/plain; charset=UTF-8","text/plain; charset=\"utf-8\""],"Content-Transfer-Encoding":"base64","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDA4MDAzNiBTYWx0ZWRfX3KufGbahvXOA\n yaZ+RaRx1EpdB9iZLF4qD/hdtGHT5nlYA73jtIje+mkHYViPx7Auxn1FcxktkzZZLgjbEBtJUM1\n Pv4/inRqXE0LoRIReuB7U7aKHTNUPulRWSSahI0ZaUVS8mZ39pBzwinGasZTKRHAgyZ+GaxrKUl\n 2b6/wM+7bS1iYUg4CoFu4ZDAPyuOIa2V+iDrKvIjDukH3cDw2skmlMvsusJdziT+oPLoqubEsbP\n PP7hEFJgXRAgjpsBWfuT5m8sHUYjaZAb9TlztGrjYLpgtlfABGfuXU9Q+lOJaEn2Za2ekkSiLP7\n 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<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":"Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>\nSigned-off-by: Brian Cain <brian.cain@oss.qualcomm.com>\n---\n meson.build                    |  1 +\n hw/hexagon/trace.h             |  2 +\n hw/hexagon/hexagon_globalreg.c | 73 ++++++++++++++++++++++++++++++++++\n hw/hexagon/trace-events        |  3 ++\n 4 files changed, 79 insertions(+)\n create mode 100644 hw/hexagon/trace.h\n create mode 100644 hw/hexagon/trace-events","diff":"diff --git a/meson.build b/meson.build\nindex daa58e46a3c..063c668cce5 100644\n--- a/meson.build\n+++ b/meson.build\n@@ -3625,6 +3625,7 @@ if have_system\n     'hw/display',\n     'hw/dma',\n     'hw/fsi',\n+    'hw/hexagon',\n     'hw/hyperv',\n     'hw/i2c',\n     'hw/i3c',\ndiff --git a/hw/hexagon/trace.h b/hw/hexagon/trace.h\nnew file mode 100644\nindex 00000000000..9e0b39f3c66\n--- /dev/null\n+++ b/hw/hexagon/trace.h\n@@ -0,0 +1,2 @@\n+/* SPDX-License-Identifier: GPL-2.0-or-later */\n+#include \"trace/trace-hw_hexagon.h\"\ndiff --git a/hw/hexagon/hexagon_globalreg.c b/hw/hexagon/hexagon_globalreg.c\nindex 634d3b169fd..34a4ca9f2b2 100644\n--- a/hw/hexagon/hexagon_globalreg.c\n+++ b/hw/hexagon/hexagon_globalreg.c\n@@ -16,11 +16,82 @@\n #include \"target/hexagon/cpu.h\"\n #include \"target/hexagon/hex_regs.h\"\n #include \"qemu/log.h\"\n+#include \"trace.h\"\n #include \"qapi/error.h\"\n \n #define IMMUTABLE (~0)\n #define INVALID_REG_VAL 0xdeadbeef\n \n+static const char *hex_sreg_names[] = {\n+    [HEX_SREG_SGP0] = \"sgp0\",\n+    [HEX_SREG_SGP1] = \"sgp1\",\n+    [HEX_SREG_STID] = \"stid\",\n+    [HEX_SREG_ELR] = \"elr\",\n+    [HEX_SREG_BADVA0] = \"badva0\",\n+    [HEX_SREG_BADVA1] = \"badva1\",\n+    [HEX_SREG_SSR] = \"ssr\",\n+    [HEX_SREG_CCR] = \"ccr\",\n+    [HEX_SREG_HTID] = \"htid\",\n+    [HEX_SREG_BADVA] = \"badva\",\n+    [HEX_SREG_IMASK] = \"imask\",\n+    [HEX_SREG_GEVB] = \"gevb\",\n+    [HEX_SREG_EVB] = \"evb\",\n+    [HEX_SREG_MODECTL] = \"modectl\",\n+    [HEX_SREG_SYSCFG] = \"syscfg\",\n+    [HEX_SREG_IPENDAD] = \"ipendad\",\n+    [HEX_SREG_VID] = \"vid\",\n+    [HEX_SREG_VID1] = \"vid1\",\n+    [HEX_SREG_BESTWAIT] = \"bestwait\",\n+    [HEX_SREG_IEL] = \"iel\",\n+    [HEX_SREG_SCHEDCFG] = \"schedcfg\",\n+    [HEX_SREG_IAHL] = \"iahl\",\n+    [HEX_SREG_CFGBASE] = \"cfgbase\",\n+    [HEX_SREG_DIAG] = \"diag\",\n+    [HEX_SREG_REV] = \"rev\",\n+    [HEX_SREG_PCYCLELO] = \"pcyclelo\",\n+    [HEX_SREG_PCYCLEHI] = \"pcyclehi\",\n+    [HEX_SREG_ISDBST] = \"isdbst\",\n+    [HEX_SREG_ISDBCFG0] = \"isdbcfg0\",\n+    [HEX_SREG_ISDBCFG1] = \"isdbcfg1\",\n+    [HEX_SREG_LIVELOCK] = \"livelock\",\n+    [HEX_SREG_BRKPTPC0] = \"brkptpc0\",\n+    [HEX_SREG_BRKPTCFG0] = \"brkptcfg0\",\n+    [HEX_SREG_BRKPTPC1] = \"brkptpc1\",\n+    [HEX_SREG_BRKPTCFG1] = \"brkptcfg1\",\n+    [HEX_SREG_ISDBMBXIN] = \"isdbmbxin\",\n+    [HEX_SREG_ISDBMBXOUT] = \"isdbmbxout\",\n+    [HEX_SREG_ISDBEN] = \"isdben\",\n+    [HEX_SREG_ISDBGPR] = \"isdbgpr\",\n+    [HEX_SREG_PMUCNT4] = \"pmucnt4\",\n+    [HEX_SREG_PMUCNT5] = \"pmucnt5\",\n+    [HEX_SREG_PMUCNT6] = \"pmucnt6\",\n+    [HEX_SREG_PMUCNT7] = \"pmucnt7\",\n+    [HEX_SREG_PMUCNT0] = \"pmucnt0\",\n+    [HEX_SREG_PMUCNT1] = \"pmucnt1\",\n+    [HEX_SREG_PMUCNT2] = \"pmucnt2\",\n+    [HEX_SREG_PMUCNT3] = \"pmucnt3\",\n+    [HEX_SREG_PMUEVTCFG] = \"pmuevtcfg\",\n+    [HEX_SREG_PMUSTID0] = \"pmustid0\",\n+    [HEX_SREG_PMUEVTCFG1] = \"pmuevtcfg1\",\n+    [HEX_SREG_PMUSTID1] = \"pmustid1\",\n+    [HEX_SREG_TIMERLO] = \"timerlo\",\n+    [HEX_SREG_TIMERHI] = \"timerhi\",\n+    [HEX_SREG_PMUCFG] = \"pmucfg\",\n+    [HEX_SREG_S59] = \"s59\",\n+    [HEX_SREG_S60] = \"s60\",\n+    [HEX_SREG_S61] = \"s61\",\n+    [HEX_SREG_S62] = \"s62\",\n+    [HEX_SREG_S63] = \"s63\",\n+};\n+\n+static const char *get_sreg_name(uint32_t reg)\n+{\n+    if (reg < ARRAY_SIZE(hex_sreg_names) && hex_sreg_names[reg]) {\n+        return hex_sreg_names[reg];\n+    }\n+    return \"UNKNOWN\";\n+}\n+\n /* Global system register mutability masks */\n static const uint32_t global_sreg_immut_masks[NUM_SREGS] = {\n     [HEX_SREG_EVB] = 0x000000ff,\n@@ -75,6 +146,7 @@ uint32_t hexagon_globalreg_read(HexagonGlobalRegState *s, uint32_t reg,\n \n     value = s->regs[reg];\n \n+    trace_hexagon_globalreg_read(htid, get_sreg_name(reg), value);\n     return value;\n }\n \n@@ -85,6 +157,7 @@ void hexagon_globalreg_write(HexagonGlobalRegState *s, uint32_t reg,\n     g_assert(reg < NUM_SREGS);\n     g_assert(reg >= HEX_SREG_GLB_START);\n     s->regs[reg] = value;\n+    trace_hexagon_globalreg_write(htid, get_sreg_name(reg), value);\n }\n \n uint32_t hexagon_globalreg_masked_value(HexagonGlobalRegState *s, uint32_t reg,\ndiff --git a/hw/hexagon/trace-events b/hw/hexagon/trace-events\nnew file mode 100644\nindex 00000000000..5d623ed2516\n--- /dev/null\n+++ b/hw/hexagon/trace-events\n@@ -0,0 +1,3 @@\n+# Hexagon global register access\n+hexagon_globalreg_read(uint32_t htid, const char *reg_name, uint32_t value) \"htid=%u reg=%s value=0x%x\"\n+hexagon_globalreg_write(uint32_t htid, const char *reg_name, uint32_t value) \"htid=%u reg=%s value=0x%x\"\n","prefixes":["v4","2/9"]}