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Thu, 9 Dec 2021 15:20:55 +0000 (GMT) Received: from [9.171.49.66] (unknown [9.171.49.66]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 9 Dec 2021 15:20:55 +0000 (GMT) Message-ID: Date: Thu, 9 Dec 2021 16:20:55 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.0 Subject: Re: [PATCH 09/32] s390/pci: export some routines related to RPCIT processing Content-Language: en-US To: Matthew Rosato , linux-s390@vger.kernel.org Cc: alex.williamson@redhat.com, cohuck@redhat.com, schnelle@linux.ibm.com, farman@linux.ibm.com, pmorel@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, gerald.schaefer@linux.ibm.com, agordeev@linux.ibm.com, frankja@linux.ibm.com, david@redhat.com, imbrenda@linux.ibm.com, vneethv@linux.ibm.com, oberpar@linux.ibm.com, freude@linux.ibm.com, thuth@redhat.com, pasic@linux.ibm.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20211207205743.150299-1-mjrosato@linux.ibm.com> <20211207205743.150299-10-mjrosato@linux.ibm.com> From: Christian Borntraeger In-Reply-To: <20211207205743.150299-10-mjrosato@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: wiW6vBMctt8ct6nBfJor2uYcegrStbq7 X-Proofpoint-GUID: CB-6X_7DL7py6maqPDki6i7wZGxetzOs X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2021-12-09_06,2021-12-08_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 mlxlogscore=999 priorityscore=1501 impostorscore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 spamscore=0 adultscore=0 bulkscore=0 clxscore=1015 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112090082 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 07.12.21 um 21:57 schrieb Matthew Rosato: > KVM will re-use dma_walk_cpu_trans to walk the host shadow table and > will also need to be able to call zpci_refresh_trans to re-issue a RPCIT. > > Reviewed-by: Niklas Schnelle > Signed-off-by: Matthew Rosato Makes sense Acked-by: Christian Borntraeger > --- > arch/s390/pci/pci_dma.c | 1 + > arch/s390/pci/pci_insn.c | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c > index 1f4540d6bd2d..ae55f2f2ecd9 100644 > --- a/arch/s390/pci/pci_dma.c > +++ b/arch/s390/pci/pci_dma.c > @@ -116,6 +116,7 @@ unsigned long *dma_walk_cpu_trans(unsigned long *rto, dma_addr_t dma_addr) > px = calc_px(dma_addr); > return &pto[px]; > } > +EXPORT_SYMBOL_GPL(dma_walk_cpu_trans); > > void dma_update_cpu_trans(unsigned long *entry, void *page_addr, int flags) > { > diff --git a/arch/s390/pci/pci_insn.c b/arch/s390/pci/pci_insn.c > index d1a8bd43ce26..0d1ab268ec24 100644 > --- a/arch/s390/pci/pci_insn.c > +++ b/arch/s390/pci/pci_insn.c > @@ -95,6 +95,7 @@ int zpci_refresh_trans(u64 fn, u64 addr, u64 range) > > return (cc) ? -EIO : 0; > } > +EXPORT_SYMBOL_GPL(zpci_refresh_trans); > > /* Set Interruption Controls */ > int zpci_set_irq_ctrl(u16 ctl, u8 isc, union zpci_sic_iib *iib) >