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Thu, 20 Jun 2024 17:47:15 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9696C20049; Thu, 20 Jun 2024 17:47:13 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C0C5420040; Thu, 20 Jun 2024 17:47:10 +0000 (GMT) Received: from li-c439904c-24ed-11b2-a85c-b284a6847472.ibm.com.com (unknown [9.195.32.74]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 20 Jun 2024 17:47:10 +0000 (GMT) From: Madhavan Srinivasan To: mpe@ellerman.id.au Subject: [PATCH 1/3] powerpc/pseries: Macros and wrapper functions for H_HTM call Date: Thu, 20 Jun 2024 23:16:12 +0530 Message-ID: <20240620174614.53751-1-maddy@linux.ibm.com> X-Mailer: git-send-email 2.45.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: k_yMxGyIRRJPvRpWQv9OaZxzGvnwDdou X-Proofpoint-ORIG-GUID: OMlYL1_z0S81OBHA8mIDCOKAFdPU4Wtv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-20_08,2024-06-20_04,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 lowpriorityscore=0 spamscore=0 clxscore=1011 impostorscore=0 mlxscore=0 malwarescore=0 phishscore=0 mlxlogscore=885 bulkscore=0 priorityscore=1501 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2406140001 definitions=main-2406200126 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: atrajeev@linux.vnet.ibm.com, kjain@linux.ibm.com, christophe.leroy@csgroup.eu, Madhavan Srinivasan , npiggin@gmail.com, naveen.n.rao@linux.ibm.com, disgoel@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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. 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 7a8495660c2f..7ad13685c127 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 @@ -497,6 +498,39 @@ #define H_GUEST_CAP_POWER10 (1UL<<(63-2)) #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 b3ee44a40c2f..24d5647096e0 100644 --- a/arch/powerpc/include/asm/plpar_wrappers.h +++ b/arch/powerpc/include/asm/plpar_wrappers.h @@ -93,6 +93,27 @@ 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, -- 2.45.2