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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 7 Nov 2019 17:57:19 -0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xA7HvHmQ262624 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 7 Nov 2019 17:57:17 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AD5DD4C04E; Thu, 7 Nov 2019 17:57:17 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 83D734C044; Thu, 7 Nov 2019 17:57:16 +0000 (GMT) Received: from pic2.home (unknown [9.145.15.120]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 7 Nov 2019 17:57:16 +0000 (GMT) Subject: Re: [PATCH 03/10] powerpc: Add OPAL calls for LPC memory alloc/release To: "Alastair D'Silva" , alastair@d-silva.org Cc: Andrew Donnellan , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Arnd Bergmann , Greg Kroah-Hartman , Dan Williams , Vishal Verma , Dave Jiang , Keith Busch , Ira Weiny , Anton Blanchard , Geert Uytterhoeven , Krzysztof Kozlowski , Thomas Gleixner , Vasant Hegde , Anju T Sudhakar , Hari Bathini , Mahesh Salgaonkar , =?UTF-8?Q?C=c3=a9dric_Le_Goater?= , Allison Randal , Greg Kurz , Nicholas Piggin , David Gibson , Alexey Kardashevskiy , Andrew Morton , David Hildenbrand , Oscar Salvador , Michal Hocko , Pavel Tatashin , Wei Yang , Qian Cai , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org, linux-mm@kvack.org References: <20191025044721.16617-1-alastair@au1.ibm.com> <20191025044721.16617-4-alastair@au1.ibm.com> From: Frederic Barrat Date: Thu, 7 Nov 2019 18:57:16 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191025044721.16617-4-alastair@au1.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US X-TM-AS-GCONF: 00 x-cbid: 19110717-0020-0000-0000-000003837F8B X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19110717-0021-0000-0000-000021D9B527 Message-Id: <150de4f8-a257-4b4b-8495-73f3aa6954c0@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-11-07_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1910280000 definitions=main-1911070165 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Le 25/10/2019 =C3=A0 06:46, Alastair D'Silva a =C3=A9crit=C2=A0: > From: Alastair D'Silva >=20 > Add OPAL calls for LPC memory alloc/release >=20 > Signed-off-by: Alastair D'Silva > Acked-by: Andrew Donnellan > --- Acked-by: Frederic Barrat > arch/powerpc/include/asm/opal-api.h | 2 ++ > arch/powerpc/include/asm/opal.h | 3 +++ > arch/powerpc/platforms/powernv/opal-call.c | 2 ++ > 3 files changed, 7 insertions(+) >=20 > diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include= /asm/opal-api.h > index 378e3997845a..2c88c02e69ed 100644 > --- a/arch/powerpc/include/asm/opal-api.h > +++ b/arch/powerpc/include/asm/opal-api.h > @@ -208,6 +208,8 @@ > #define OPAL_HANDLE_HMI2 166 > #define OPAL_NX_COPROC_INIT 167 > #define OPAL_XIVE_GET_VP_STATE 170 > +#define OPAL_NPU_MEM_ALLOC 171 > +#define OPAL_NPU_MEM_RELEASE 172 > #define OPAL_MPIPL_UPDATE 173 > #define OPAL_MPIPL_REGISTER_TAG 174 > #define OPAL_MPIPL_QUERY_TAG 175 > diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm= /opal.h > index a0cf8fba4d12..4db135fb54ab 100644 > --- a/arch/powerpc/include/asm/opal.h > +++ b/arch/powerpc/include/asm/opal.h > @@ -39,6 +39,9 @@ int64_t opal_npu_spa_clear_cache(uint64_t phb_id, uin= t32_t bdfn, > uint64_t PE_handle); > int64_t opal_npu_tl_set(uint64_t phb_id, uint32_t bdfn, long cap, > uint64_t rate_phys, uint32_t size); > +int64_t opal_npu_mem_alloc(uint64_t phb_id, uint32_t bdfn, > + uint64_t size, uint64_t *bar); > +int64_t opal_npu_mem_release(uint64_t phb_id, uint32_t bdfn); > =20 > int64_t opal_console_write(int64_t term_number, __be64 *length, > const uint8_t *buffer); > diff --git a/arch/powerpc/platforms/powernv/opal-call.c b/arch/powerpc/= platforms/powernv/opal-call.c > index a2aa5e433ac8..27c4b93c774c 100644 > --- a/arch/powerpc/platforms/powernv/opal-call.c > +++ b/arch/powerpc/platforms/powernv/opal-call.c > @@ -287,6 +287,8 @@ OPAL_CALL(opal_pci_set_pbcq_tunnel_bar, OPAL_PCI_S= ET_PBCQ_TUNNEL_BAR); > OPAL_CALL(opal_sensor_read_u64, OPAL_SENSOR_READ_U64); > OPAL_CALL(opal_sensor_group_enable, OPAL_SENSOR_GROUP_ENABLE); > OPAL_CALL(opal_nx_coproc_init, OPAL_NX_COPROC_INIT); > +OPAL_CALL(opal_npu_mem_alloc, OPAL_NPU_MEM_ALLOC); > +OPAL_CALL(opal_npu_mem_release, OPAL_NPU_MEM_RELEASE); > OPAL_CALL(opal_mpipl_update, OPAL_MPIPL_UPDATE); > OPAL_CALL(opal_mpipl_register_tag, OPAL_MPIPL_REGISTER_TAG); > OPAL_CALL(opal_mpipl_query_tag, OPAL_MPIPL_QUERY_TAG); >=20