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b=LwzJgAjP/QKJdTdHX5O5kX r4VAvXvYwLLzd9oRitWUAM5/3zjsqJN/+Z5V/fQL62UGKY76/3siei3RoT5bJZ+j zWwrHfYHCRQhSxsMbXxiM0z8EhzbcQWxRJ6I68NcvKM9qh6eEAmmNpyn2eTzMQtq wAVVkmmnM/wocKgagsyqTbkVexrgEzRKpe6TI/YpztJ7f3dk+BlIwv68fgr5TuNY ml4PCIH9vMRUC+NSgyViBXc8UReEMucC61KrzNCTwtJRd9+y7MNq6P7oUcoMUNlF 8aEBurOlZW3NQUxgDCpCRCFY7ysLKqJd1uf6otIRU3/NdNrmM9l+Pfi3BMklJqhw == From: Saif Abrar To: qemu-ppc@nongnu.org, qemu-devel@nongnu.org Cc: clg@kaod.org, npiggin@gmail.com, fbarrat@linux.ibm.com, mst@redhat.com, marcel.apfelbaum@gmail.com, cohuck@redhat.com, pbonzini@redhat.com, thuth@redhat.com, lvivier@redhat.com, danielhb413@gmail.com, saif.abrar@linux.vnet.ibm.com Subject: [PATCH v2 9/9] pnv/phb4: Mask off LSI Source-ID based on number of interrupts Date: Tue, 30 Dec 2025 04:21:27 -0600 Message-ID: <20251230102156.886288-10-saif.abrar@linux.vnet.ibm.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251230102156.886288-1-saif.abrar@linux.vnet.ibm.com> References: <20251230102156.886288-1-saif.abrar@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=148.163.158.5; envelope-from=saif.abrar@linux.vnet.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1767090221166158500 Add a method to reset the value of LSI Source-ID. Mask off LSI source-id based on number of interrupts in the big/small PHB. Signed-off-by: Saif Abrar Reviewed-by: C=C3=A9dric Le Goater --- v1 -> v2: Introduced method pnv_phb4_xsrc_reset(). hw/pci-host/pnv_phb4.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c index 528117f409..ad8047cdfb 100644 --- a/hw/pci-host/pnv_phb4.c +++ b/hw/pci-host/pnv_phb4.c @@ -490,6 +490,7 @@ static void pnv_phb4_update_xsrc(PnvPHB4 *phb) =20 lsi_base =3D GETFIELD(PHB_LSI_SRC_ID, phb->regs[PHB_LSI_SOURCE_ID >> 3= ]); lsi_base <<=3D 3; + lsi_base &=3D (xsrc->nr_irqs - 1); =20 /* TODO: handle reset values of PHB_LSI_SRC_ID */ if (!lsi_base) { @@ -1944,6 +1945,12 @@ static void pnv_phb4_ro_mask_init(PnvPHB4 *phb) /* TODO: Add more RO-masks as regs are implemented in the model */ } =20 +static void pnv_phb4_xsrc_reset(PnvPHB4 *phb) +{ + phb->regs[PHB_LSI_SOURCE_ID >> 3] =3D PPC_BITMASK(4, 12); + pnv_phb4_update_xsrc(phb); +} + static void pnv_phb4_err_reg_reset(PnvPHB4 *phb) { STICKY_RST(PHB_ERR_STATUS, 0, PPC_BITMASK(0, 33)); @@ -1999,10 +2006,11 @@ static void pnv_phb4_reset(Object *obj, ResetType t= ype) { PnvPHB4 *phb =3D PNV_PHB4(obj); pnv_phb4_pbl_core_reset(phb); + + pnv_phb4_xsrc_reset(phb); pnv_phb4_err_reg_reset(phb); pnv_phb4_pcie_stack_reg_reset(phb); pnv_phb4_regb_err_reg_reset(phb); - phb->regs[PHB_PCIE_CRESET >> 3] =3D 0xE000000000000000; } =20 static void pnv_phb4_instance_init(Object *obj) @@ -2079,8 +2087,6 @@ static void pnv_phb4_realize(DeviceState *dev, Error = **errp) return; } =20 - pnv_phb4_update_xsrc(phb); - phb->qirqs =3D qemu_allocate_irqs(xive_source_set_irq, xsrc, xsrc->nr_= irqs); =20 pnv_phb4_xscom_realize(phb); --=20 2.47.3