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Mon, 13 Jan 2025 10:10:49 +0000 Received: from smtpav06.fra02v.mail.ibm.com (smtpav06.fra02v.mail.ibm.com [10.20.54.105]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 50DAAkPl33554946 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 13 Jan 2025 10:10:46 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0D82920075; Mon, 13 Jan 2025 10:10:46 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4412B20040; Mon, 13 Jan 2025 10:10:45 +0000 (GMT) Received: from ltcden3-lp4.aus.stglabs.ibm.com (unknown [9.53.174.155]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 13 Jan 2025 10:10:45 +0000 (GMT) From: adubey@linux.ibm.com To: maddy@linux.ibm.com, atrajeev@linux.ibm.com, hbathini@linux.ibm.com Cc: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v6 1/3] powerpc/pseries: Macros and wrapper functions for H_HTM call Date: Mon, 13 Jan 2025 05:10:35 -0500 Message-Id: <20250113101035.289773-1-adubey@linux.ibm.com> X-Mailer: git-send-email 2.39.3 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: GXm0CiMUZZNO5xe6kZVDdCyFwZ_COojo X-Proofpoint-GUID: GXm0CiMUZZNO5xe6kZVDdCyFwZ_COojo X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=999 malwarescore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 bulkscore=0 spamscore=0 mlxscore=0 priorityscore=1501 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501130084 From: Abhishek Dubey Define macros and wrapper functions to handle H_HTM (Hardware Trace Macro) hypervisor call. H_HTM is new HCALL added to export data from Hardware Trace Macro (HTM) function. v3 patch: https://lore.kernel.org/linuxppc-dev/20240828085223.42177-1-maddy@linux.ibm.com/ Signed-off-by: Abhishek Dubey Co-developed-by: Madhavan Srinivasan Signed-off-by: Madhavan Srinivasan --- arch/powerpc/include/asm/hvcall.h | 34 +++++++++++++++++++++++ arch/powerpc/include/asm/plpar_wrappers.h | 21 ++++++++++++++ 2 files changed, 55 insertions(+) diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index 65d1f291393d..eeef13db2770 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -348,6 +348,7 @@ #define H_SCM_FLUSH 0x44C #define H_GET_ENERGY_SCALE_INFO 0x450 #define H_PKS_SIGNED_UPDATE 0x454 +#define H_HTM 0x458 #define H_WATCHDOG 0x45C #define H_GUEST_GET_CAPABILITIES 0x460 #define H_GUEST_SET_CAPABILITIES 0x464 @@ -498,6 +499,39 @@ #define H_GUEST_CAP_POWER11 (1UL<<(63-3)) #define H_GUEST_CAP_BITMAP2 (1UL<<(63-63)) +/* + * Defines for H_HTM - Macros for hardware trace macro (HTM) function. + */ +#define H_HTM_FLAGS_HARDWARE_TARGET (1ul << 63) +#define H_HTM_FLAGS_LOGICAL_TARGET (1ul << 62) +#define H_HTM_FLAGS_PROCID_TARGET (1ul << 61) +#define H_HTM_FLAGS_NOWRAP (1ul << 60) + +#define H_HTM_OP_SHIFT (63-15) +#define H_HTM_OP(x) ((unsigned long)(x)< diff --git a/arch/powerpc/include/asm/plpar_wrappers.h b/arch/powerpc/include/asm/plpar_wrappers.h index 71648c126970..91be7b885944 100644 --- a/arch/powerpc/include/asm/plpar_wrappers.h +++ b/arch/powerpc/include/asm/plpar_wrappers.h @@ -65,6 +65,27 @@ static inline long register_dtl(unsigned long cpu, unsigned long vpa) return vpa_call(H_VPA_REG_DTL, cpu, vpa); } +static inline long htm_call(unsigned long flags, unsigned long target, + unsigned long operation, unsigned long param1, + unsigned long param2, unsigned long param3) +{ + return plpar_hcall_norets(H_HTM, flags, target, operation, + param1, param2, param3); +} + +static inline long htm_get_dump_hardware(unsigned long nodeindex, + unsigned long nodalchipindex, unsigned long coreindexonchip, + unsigned long type, unsigned long addr, unsigned long size, + unsigned long offset) +{ + return htm_call(H_HTM_FLAGS_HARDWARE_TARGET, + H_HTM_TARGET_NODE_INDEX(nodeindex) | + H_HTM_TARGET_NODAL_CHIP_INDEX(nodalchipindex) | + H_HTM_TARGET_CORE_INDEX_ON_CHIP(coreindexonchip), + H_HTM_OP(H_HTM_OP_DUMP_DATA) | H_HTM_TYPE(type), + addr, size, offset); +} + extern void vpa_init(int cpu); static inline long plpar_pte_enter(unsigned long flags, -- 2.39.3