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Mon, 9 Aug 2021 13:46:00 +0000 (GMT) Received: from yukon.ibmuc.com (unknown [9.171.54.114]) by smtp.tlslab.ibm.com (Postfix) with ESMTP id DC5A0220032; Mon, 9 Aug 2021 15:45:59 +0200 (CEST) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson , Greg Kurz Subject: [PATCH 16/26] ppc/psi: Add support for StoreEOI and 64k ESB pages (POWER10) Date: Mon, 9 Aug 2021 15:45:37 +0200 Message-Id: <20210809134547.689560-17-clg@kaod.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210809134547.689560-1-clg@kaod.org> References: <20210809134547.689560-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: WNGfpP3VJdwL_Wi9mvcHluRlWmvSebfT X-Proofpoint-GUID: WNGfpP3VJdwL_Wi9mvcHluRlWmvSebfT X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-08-09_04:2021-08-06, 2021-08-09 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 mlxlogscore=999 mlxscore=0 priorityscore=1501 suspectscore=0 clxscore=1034 malwarescore=0 phishscore=0 bulkscore=0 lowpriorityscore=0 impostorscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108090101 Received-SPF: softfail client-ip=148.163.158.5; envelope-from=clg@kaod.org; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -7 X-Spam_score: -0.8 X-Spam_bar: / X-Spam_report: (-0.8 / 5.0 requ) BAYES_00=-1.9, KHOP_HELO_FCRDNS=0.398, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" POWER10 adds support for StoreEOI operation and 64K ESB pages on PSIHB to be consistent with the other interrupt sources of the system. Signed-off-by: C=C3=A9dric Le Goater --- hw/ppc/pnv.c | 6 ++++++ hw/ppc/pnv_psi.c | 30 ++++++++++++++++++++++++------ 2 files changed, 30 insertions(+), 6 deletions(-) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 2d7eade23ccc..836147d81e1c 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -1519,6 +1519,9 @@ static void pnv_chip_power9_realize(DeviceState *de= v, Error **errp) /* Processor Service Interface (PSI) Host Bridge */ object_property_set_int(OBJECT(&chip9->psi), "bar", PNV9_PSIHB_BASE(= chip), &error_fatal); + /* This is the only device with 4k ESB pages */ + object_property_set_int(OBJECT(&chip9->psi), "shift", XIVE_ESB_4K, + &error_fatal); if (!qdev_realize(DEVICE(&chip9->psi), NULL, errp)) { return; } @@ -1770,6 +1773,9 @@ static void pnv_chip_power10_realize(DeviceState *d= ev, Error **errp) /* Processor Service Interface (PSI) Host Bridge */ object_property_set_int(OBJECT(&chip10->psi), "bar", PNV10_PSIHB_BASE(chip), &error_fatal); + /* PSI can now be configured to use 64k ESB pages on POWER10 */ + object_property_set_int(OBJECT(&chip10->psi), "shift", XIVE_ESB_64K, + &error_fatal); if (!qdev_realize(DEVICE(&chip10->psi), NULL, errp)) { return; } diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c index cd9a2c5952a6..737486046d5a 100644 --- a/hw/ppc/pnv_psi.c +++ b/hw/ppc/pnv_psi.c @@ -601,7 +601,6 @@ static const TypeInfo pnv_psi_power8_info =3D { #define PSIHB9_IRQ_METHOD PPC_BIT(0) #define PSIHB9_IRQ_RESET PPC_BIT(1) #define PSIHB9_ESB_CI_BASE 0x60 -#define PSIHB9_ESB_CI_64K PPC_BIT(1) #define PSIHB9_ESB_CI_ADDR_MASK PPC_BITMASK(8, 47) #define PSIHB9_ESB_CI_VALID PPC_BIT(63) #define PSIHB9_ESB_NOTIF_ADDR 0x68 @@ -646,6 +645,14 @@ static const TypeInfo pnv_psi_power8_info =3D { #define PSIHB9_IRQ_STAT_DIO PPC_BIT(12) #define PSIHB9_IRQ_STAT_PSU PPC_BIT(13) =20 +/* P10 register extensions */ + +#define PSIHB10_CR PSIHB9_CR +#define PSIHB10_CR_STORE_EOI PPC_BIT(12) + +#define PSIHB10_ESB_CI_BASE PSIHB9_ESB_CI_BASE +#define PSIHB10_ESB_CI_64K PPC_BIT(1) + static void pnv_psi_notify(XiveNotifier *xf, uint32_t srcno) { PnvPsi *psi =3D PNV_PSI(xf); @@ -704,6 +711,13 @@ static void pnv_psi_p9_mmio_write(void *opaque, hwad= dr addr, =20 switch (addr) { case PSIHB9_CR: + if (val & PSIHB10_CR_STORE_EOI) { + psi9->source.esb_flags |=3D XIVE_SRC_STORE_EOI; + } else { + psi9->source.esb_flags &=3D ~XIVE_SRC_STORE_EOI; + } + break; + case PSIHB9_SEMR: /* FSP stuff */ break; @@ -715,15 +729,20 @@ static void pnv_psi_p9_mmio_write(void *opaque, hwa= ddr addr, break; =20 case PSIHB9_ESB_CI_BASE: + if (val & PSIHB10_ESB_CI_64K) { + psi9->source.esb_shift =3D XIVE_ESB_64K; + } else { + psi9->source.esb_shift =3D XIVE_ESB_4K; + } if (!(val & PSIHB9_ESB_CI_VALID)) { if (psi->regs[reg] & PSIHB9_ESB_CI_VALID) { memory_region_del_subregion(sysmem, &psi9->source.esb_mm= io); } } else { if (!(psi->regs[reg] & PSIHB9_ESB_CI_VALID)) { - memory_region_add_subregion(sysmem, - val & ~PSIHB9_ESB_CI_VALID, - &psi9->source.esb_mmio); + hwaddr addr =3D val & ~(PSIHB9_ESB_CI_VALID | PSIHB10_ES= B_CI_64K); + memory_region_add_subregion(sysmem, addr, + &psi9->source.esb_mmio); } } psi->regs[reg] =3D val; @@ -831,6 +850,7 @@ static void pnv_psi_power9_instance_init(Object *obj) Pnv9Psi *psi =3D PNV9_PSI(obj); =20 object_initialize_child(obj, "source", &psi->source, TYPE_XIVE_SOURC= E); + object_property_add_alias(obj, "shift", OBJECT(&psi->source), "shift= "); } =20 static void pnv_psi_power9_realize(DeviceState *dev, Error **errp) @@ -839,8 +859,6 @@ static void pnv_psi_power9_realize(DeviceState *dev, = Error **errp) XiveSource *xsrc =3D &PNV9_PSI(psi)->source; int i; =20 - /* This is the only device with 4k ESB pages */ - object_property_set_int(OBJECT(xsrc), "shift", XIVE_ESB_4K, &error_f= atal); object_property_set_int(OBJECT(xsrc), "nr-irqs", PSIHB9_NUM_IRQS, &error_fatal); object_property_set_link(OBJECT(xsrc), "xive", OBJECT(psi), &error_a= bort); --=20 2.31.1