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Thu, 22 Jun 2023 16:25:28 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 373362004B; Thu, 22 Jun 2023 16:25:28 +0000 (GMT) Received: from borneo.ibmuc.com (unknown [9.171.58.93]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 22 Jun 2023 16:25:28 +0000 (GMT) From: Frederic Barrat To: clg@kaod.org, danielhb413@gmail.com, qemu-ppc@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v2 1/2] pnv/xive2: Add a get_config() method on the presenter class Date: Thu, 22 Jun 2023 18:25:26 +0200 Message-ID: <20230622162527.1118350-2-fbarrat@linux.ibm.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230622162527.1118350-1-fbarrat@linux.ibm.com> References: <20230622162527.1118350-1-fbarrat@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: CrxpJ9xngw6bOyVrCAA02tM5f8gZWsS5 X-Proofpoint-ORIG-GUID: rws7748ID-nj0H8b9w98UDkLQLYVbmzC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-06-22_11,2023-06-22_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 mlxlogscore=999 spamscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 phishscore=0 clxscore=1015 priorityscore=1501 adultscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2306220136 Received-SPF: pass client-ip=148.163.156.1; envelope-from=fbarrat@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The presenters for xive on P9 and P10 are mostly similar but the behavior can be tuned through a few CQ registers. This patch adds a "get_config" method, which will allow to access that config from the presenter in a later patch. For now, just define the config for the TIMA version. Signed-off-by: Frederic Barrat Reviewed-by: Cédric Le Goater --- hw/intc/pnv_xive.c | 11 +++++++++++ hw/intc/pnv_xive2.c | 12 ++++++++++++ hw/intc/spapr_xive.c | 16 ++++++++++++++++ hw/intc/xive.c | 7 +++++++ include/hw/ppc/xive.h | 3 +++ 5 files changed, 49 insertions(+) diff --git a/hw/intc/pnv_xive.c b/hw/intc/pnv_xive.c index 622f9d28b7..e536b3ec26 100644 --- a/hw/intc/pnv_xive.c +++ b/hw/intc/pnv_xive.c @@ -479,6 +479,16 @@ static int pnv_xive_match_nvt(XivePresenter *xptr, uint8_t format, return count; } +static uint32_t pnv_xive_presenter_get_config(XivePresenter *xptr) +{ + uint32_t cfg = 0; + + /* TIMA GEN1 is all P9 knows */ + cfg |= XIVE_PRESENTER_GEN1_TIMA_OS; + + return cfg; +} + static uint8_t pnv_xive_get_block_id(XiveRouter *xrtr) { return pnv_xive_block_id(PNV_XIVE(xrtr)); @@ -1991,6 +2001,7 @@ static void pnv_xive_class_init(ObjectClass *klass, void *data) xnc->notify = pnv_xive_notify; xpc->match_nvt = pnv_xive_match_nvt; + xpc->get_config = pnv_xive_presenter_get_config; }; static const TypeInfo pnv_xive_info = { diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c index ec1edeb385..59534f6843 100644 --- a/hw/intc/pnv_xive2.c +++ b/hw/intc/pnv_xive2.c @@ -501,6 +501,17 @@ static int pnv_xive2_match_nvt(XivePresenter *xptr, uint8_t format, return count; } +static uint32_t pnv_xive2_presenter_get_config(XivePresenter *xptr) +{ + PnvXive2 *xive = PNV_XIVE2(xptr); + uint32_t cfg = 0; + + if (xive->cq_regs[CQ_XIVE_CFG >> 3] & CQ_XIVE_CFG_GEN1_TIMA_OS) { + cfg |= XIVE_PRESENTER_GEN1_TIMA_OS; + } + return cfg; +} + static uint8_t pnv_xive2_get_block_id(Xive2Router *xrtr) { return pnv_xive2_block_id(PNV_XIVE2(xrtr)); @@ -1987,6 +1998,7 @@ static void pnv_xive2_class_init(ObjectClass *klass, void *data) xnc->notify = pnv_xive2_notify; xpc->match_nvt = pnv_xive2_match_nvt; + xpc->get_config = pnv_xive2_presenter_get_config; }; static const TypeInfo pnv_xive2_info = { diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c index dc641cc604..8bcab2846c 100644 --- a/hw/intc/spapr_xive.c +++ b/hw/intc/spapr_xive.c @@ -475,6 +475,21 @@ static int spapr_xive_match_nvt(XivePresenter *xptr, uint8_t format, return count; } +static uint32_t spapr_xive_presenter_get_config(XivePresenter *xptr) +{ + uint32_t cfg = 0; + + /* + * Let's claim GEN1 TIMA format. If running with KVM on P10, the + * correct answer is deep in the hardware and not accessible to + * us. But it shouldn't matter as it only affects the presenter + * as seen by a guest OS. + */ + cfg |= XIVE_PRESENTER_GEN1_TIMA_OS; + + return cfg; +} + static uint8_t spapr_xive_get_block_id(XiveRouter *xrtr) { return SPAPR_XIVE_BLOCK_ID; @@ -832,6 +847,7 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data) sicc->post_load = spapr_xive_post_load; xpc->match_nvt = spapr_xive_match_nvt; + xpc->get_config = spapr_xive_presenter_get_config; xpc->in_kernel = spapr_xive_in_kernel_xptr; } diff --git a/hw/intc/xive.c b/hw/intc/xive.c index 5204c14b87..34a868b185 100644 --- a/hw/intc/xive.c +++ b/hw/intc/xive.c @@ -461,6 +461,13 @@ static void xive_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, } } +static __attribute__((unused)) uint32_t xive_presenter_get_config(XivePresenter *xptr) +{ + XivePresenterClass *xpc = XIVE_PRESENTER_GET_CLASS(xptr); + + return xpc->get_config(xptr); +} + /* * Define a mapping of "special" operations depending on the TIMA page * offset and the size of the operation. diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h index f7eea4ca81..3dfb06e002 100644 --- a/include/hw/ppc/xive.h +++ b/include/hw/ppc/xive.h @@ -430,6 +430,8 @@ typedef struct XivePresenterClass XivePresenterClass; DECLARE_CLASS_CHECKERS(XivePresenterClass, XIVE_PRESENTER, TYPE_XIVE_PRESENTER) +#define XIVE_PRESENTER_GEN1_TIMA_OS 0x1 + struct XivePresenterClass { InterfaceClass parent; int (*match_nvt)(XivePresenter *xptr, uint8_t format, @@ -437,6 +439,7 @@ struct XivePresenterClass { bool cam_ignore, uint8_t priority, uint32_t logic_serv, XiveTCTXMatch *match); bool (*in_kernel)(const XivePresenter *xptr); + uint32_t (*get_config)(XivePresenter *xptr); }; int xive_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,