From patchwork Wed May 13 15:11:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 282848 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F129C433E0 for ; Wed, 13 May 2020 15:19:40 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6B0FB205ED for ; Wed, 13 May 2020 15:19:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B0FB205ED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:46116 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jYtAZ-0000YH-EZ for qemu-devel@archiver.kernel.org; Wed, 13 May 2020 11:19:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34048) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jYt3M-0003rT-Lv for qemu-devel@nongnu.org; Wed, 13 May 2020 11:12:12 -0400 Received: from 17.mo4.mail-out.ovh.net ([46.105.41.16]:39209) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jYt3G-0005Q7-80 for qemu-devel@nongnu.org; Wed, 13 May 2020 11:12:12 -0400 Received: from player791.ha.ovh.net (unknown [10.110.208.245]) by mo4.mail-out.ovh.net (Postfix) with ESMTP id 4E936235B6C for ; Wed, 13 May 2020 17:12:04 +0200 (CEST) Received: from kaod.org (82-64-250-170.subs.proxad.net [82.64.250.170]) (Authenticated sender: clg@kaod.org) by player791.ha.ovh.net (Postfix) with ESMTPSA id 8CD1F1244BD0D; Wed, 13 May 2020 15:11:55 +0000 (UTC) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: David Gibson Subject: [PATCH 5/9] ppc/pnv: Add a XIVE2 controller to the POWER10 chip. Date: Wed, 13 May 2020 17:11:05 +0200 Message-Id: <20200513151109.453530-6-clg@kaod.org> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20200513151109.453530-1-clg@kaod.org> References: <20200513151109.453530-1-clg@kaod.org> MIME-Version: 1.0 X-Ovh-Tracer-Id: 1027946618277235686 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgeduhedrleeggdekgecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvffufffkofgjfhggtgfgsehtkeertdertdejnecuhfhrohhmpeevrogurhhitgcunfgvucfiohgrthgvrhcuoegtlhhgsehkrghougdrohhrgheqnecuggftrfgrthhtvghrnhepgfeitedvfedugeehvdevjeduiefhieetffejteejueekhffggfevudegudegudfgnecukfhppedtrddtrddtrddtpdekvddrieegrddvhedtrddujedtnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmohguvgepshhmthhpqdhouhhtpdhhvghlohepphhlrgihvghrjeeluddrhhgrrdhovhhhrdhnvghtpdhinhgvtheptddrtddrtddrtddpmhgrihhlfhhrohhmpegtlhhgsehkrghougdrohhrghdprhgtphhtthhopehqvghmuhdquggvvhgvlhesnhhonhhgnhhurdhorhhg Received-SPF: pass client-ip=46.105.41.16; envelope-from=clg@kaod.org; helo=17.mo4.mail-out.ovh.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/13 11:12:04 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: =?utf-8?q?C=C3=A9dric_Le_Goater?= , qemu-ppc@nongnu.org, Greg Kurz , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The XIVE2 interrupt controller of the POWER10 processor follows the same logic than on POWER9 but the HW interface has been largely reviewed. It has a new register interface, different BARs, extra VSDs, new layout for the XIVE2 structures, and a set of new features which are described below. This is a model of the POWER10 XIVE2 interrupt controller for the PowerNV machine. It focuses primarily on the needs of the skiboot firmware but some initial hypervisor support is implemented for KVM use (escalation). Support for new features will be implemented in time and will require new support from the OS. * XIVE2 BARS The interrupt controller BARs have a different layout outlined below. Each sub-engine has now own its range and the indirect TIMA access was replaced with a set of pages, one per CPU, under the IC BAR: - IC BAR (Interrupt Controller) . 4 pages, one per sub-engine . 128 indirect TIMA pages - TM BAR (Thread Interrupt Management Area) . 4 pages - ESB BAR (ESB pages for IPIs) . up to 1TB - END BAR (ESB pages for ENDs) . up to 2TB - NVC BAR (Notification Virtual Crowd) . up to 128 - NVPG BAR (Notification Virtual Process and Group) . up to 1TB - Direct mapped Thread Context Area (reads & writes) OPAL does not use the grouping and crowd capability. * Virtual Structure Tables XIVE2 adds new tables types and also changes the field layout of the END and NVP Virtualization Structure Descriptors. - EAS - END new layout - NVT was splitted in : . NVP (Processor), 32B . NVG (Group), 32B . NVC (Crowd == P9 block group) 32B - IC for remote configuration - SYNC for cache injection - ERQ for event input queue The setup is slighly different on XIVE2 because the indexing has changed for some of the tables, block ID or the chip topology ID can be used. * XIVE2 features SCOM and MMIO registers have a new layout and XIVE2 adds a new global capability and configuration registers. The lowlevel hardware offers a set of new features among which : - a configurable number of priorities : 1 - 8 - StoreEOI with load-after-store ordering is activated by default - Gen2 TIMA layout - A P9-compat mode, or Gen1, TIMA toggle bit for SW compatibility - increase to 24bit for VP number Other features will have some impact on the Hypervisor and guest OS when activated, but this is not required for initial support of the controller. Signed-off-by: Cédric Le Goater --- hw/intc/pnv_xive2_regs.h | 428 ++++++++ include/hw/ppc/pnv.h | 22 + include/hw/ppc/pnv_xive.h | 71 ++ include/hw/ppc/pnv_xscom.h | 3 + hw/intc/pnv_xive2.c | 2026 ++++++++++++++++++++++++++++++++++++ hw/ppc/pnv.c | 89 +- hw/intc/Makefile.objs | 2 +- 7 files changed, 2637 insertions(+), 4 deletions(-) create mode 100644 hw/intc/pnv_xive2_regs.h create mode 100644 hw/intc/pnv_xive2.c diff --git a/hw/intc/pnv_xive2_regs.h b/hw/intc/pnv_xive2_regs.h new file mode 100644 index 000000000000..6ad0eee824b1 --- /dev/null +++ b/hw/intc/pnv_xive2_regs.h @@ -0,0 +1,428 @@ +/* + * QEMU PowerPC XIVE2 interrupt controller model (POWER10) + * + * Copyright (c) 2019-2020, IBM Corporation. + * + * This code is licensed under the GPL version 2 or later. See the + * COPYING file in the top-level directory. + */ + +#ifndef PPC_PNV_XIVE2_REGS_H +#define PPC_PNV_XIVE2_REGS_H + +/* + * CQ Common Queue (PowerBus bridge) Registers + */ + +/* XIVE2 Capabilities */ +#define X_CQ_XIVE_CAP 0x02 +#define CQ_XIVE_CAP 0x010 +#define CQ_XIVE_CAP_VERSION PPC_BITMASK(0, 3) +/* 4:6 reserved */ +#define CQ_XIVE_CAP_USER_INT_PRIO PPC_BITMASK(8, 9) +#define CQ_XIVE_CAP_USER_INT_PRIO_1 0 +#define CQ_XIVE_CAP_USER_INT_PRIO_1_2 1 +#define CQ_XIVE_CAP_USER_INT_PRIO_1_4 2 +#define CQ_XIVE_CAP_USER_INT_PRIO_1_8 3 +#define CQ_XIVE_CAP_VP_INT_PRIO PPC_BITMASK(10, 11) +#define CQ_XIVE_CAP_VP_INT_PRIO_1_8 0 +#define CQ_XIVE_CAP_VP_INT_PRIO_2_8 1 +#define CQ_XIVE_CAP_VP_INT_PRIO_4_8 2 +#define CQ_XIVE_CAP_VP_INT_PRIO_8 3 +#define CQ_XIVE_CAP_BLOCK_ID_WIDTH PPC_BITMASK(12, 13) + +/* XIVE2 Configuration */ +#define X_CQ_XIVE_CFG 0x03 +#define CQ_XIVE_CFG 0x018 + +/* 0:7 reserved */ +#define CQ_XIVE_CFG_USER_INT_PRIO PPC_BITMASK(8, 9) +#define CQ_XIVE_CFG_VP_INT_PRIO PPC_BITMASK(10, 11) +#define CQ_XIVE_CFG_INT_PRIO_1 0 +#define CQ_XIVE_CFG_INT_PRIO_2 1 +#define CQ_XIVE_CFG_INT_PRIO_4 2 +#define CQ_XIVE_CFG_INT_PRIO_8 3 +#define CQ_XIVE_CFG_BLOCK_ID_WIDTH PPC_BITMASK(12, 13) +#define CQ_XIVE_CFG_BLOCK_ID_4BITS 0 +#define CQ_XIVE_CFG_BLOCK_ID_5BITS 1 +#define CQ_XIVE_CFG_BLOCK_ID_6BITS 2 +#define CQ_XIVE_CFG_BLOCK_ID_7BITS 3 +#define CQ_XIVE_CFG_HYP_HARD_RANGE PPC_BITMASK(14, 15) +#define CQ_XIVE_CFG_THREADID_7BITS 0 +#define CQ_XIVE_CFG_THREADID_8BITS 1 +#define CQ_XIVE_CFG_THREADID_9BITS 2 +#define CQ_XIVE_CFG_THREADID_10BITs 3 +#define CQ_XIVE_CFG_HYP_HARD_BLKID_OVERRIDE PPC_BIT(16) +#define CQ_XIVE_CFG_HYP_HARD_BLOCK_ID PPC_BITMASK(17, 23) + +/* Interrupt Controller Base Address Register - 512 pages (32M) */ +#define X_CQ_IC_BAR 0x08 +#define CQ_IC_BAR 0x040 +#define CQ_IC_BAR_VALID PPC_BIT(0) +#define CQ_IC_BAR_64K PPC_BIT(1) +/* 2:7 reserved */ +#define CQ_IC_BAR_ADDR PPC_BITMASK(8, 42) +/* 43:63 reserved */ + +/* Thread Management Base Address Register - 4 pages */ +#define X_CQ_TM_BAR 0x09 +#define CQ_TM_BAR 0x048 +#define CQ_TM_BAR_VALID PPC_BIT(0) +#define CQ_TM_BAR_64K PPC_BIT(1) +#define CQ_TM_BAR_ADDR PPC_BITMASK(8, 49) + +/* ESB Base Address Register */ +#define X_CQ_ESB_BAR 0x0A +#define CQ_ESB_BAR 0x050 +#define CQ_BAR_VALID PPC_BIT(0) +#define CQ_BAR_64K PPC_BIT(1) +/* 2:7 reserved */ +#define CQ_BAR_ADDR PPC_BITMASK(8, 39) +#define CQ_BAR_SET_DIV PPC_BITMASK(56, 58) +#define CQ_BAR_RANGE PPC_BITMASK(59, 63) + /* 0 (16M) - 16 (16T) */ + +/* END Base Address Register */ +#define X_CQ_END_BAR 0x0B +#define CQ_END_BAR 0x058 + +/* NVPG Base Address Register */ +#define X_CQ_NVPG_BAR 0x0C +#define CQ_NVPG_BAR 0x060 + +/* NVC Base Address Register */ +#define X_CQ_NVC_BAR 0x0D +#define CQ_NVC_BAR 0x068 + +/* Table Address Register */ +#define X_CQ_TAR 0x0E +#define CQ_TAR 0x070 +#define CQ_TAR_AUTOINC PPC_BIT(0) +#define CQ_TAR_SELECT PPC_BITMASK(12, 15) +#define CQ_TAR_ESB 0 /* 0 - 15 */ +#define CQ_TAR_END 2 /* 0 - 15 */ +#define CQ_TAR_NVPG 3 /* 0 - 15 */ +#define CQ_TAR_NVC 5 /* 0 - 15 */ +#define CQ_TAR_ENTRY_SELECT PPC_BITMASK(28, 31) + +/* Table Data Register */ +#define X_CQ_TDR 0x0F +#define CQ_TDR 0x078 +/* for the NVPG, NVC, ESB, END Set Translation Tables */ +#define CQ_TDR_VALID PPC_BIT(0) +#define CQ_TDR_BLOCK_ID PPC_BITMASK(60, 63) + +/* + * Processor Cores Enabled for MsgSnd + * Identifies which of the 32 possible core chiplets are enabled and + * available to receive the MsgSnd command + */ +#define X_CQ_MSGSND 0x10 +#define CQ_MSGSND 0x080 + +/* Interrupt Unit Reset Control */ +#define X_CQ_RST_CTL 0x12 +#define CQ_RST_CTL 0x090 +#define CQ_RST_SYNC_RESET PPC_BIT(0) /* Write Only */ +#define CQ_RST_QUIESCE_PB PPC_BIT(1) /* RW */ +#define CQ_RST_MASTER_IDLE PPC_BIT(2) /* Read Only */ +#define CQ_RST_SAVE_IDLE PPC_BIT(3) /* Read Only */ +#define CQ_RST_PB_BAR_RESET PPC_BIT(4) /* Write Only */ + +/* PowerBus General Configuration */ +#define X_CQ_CFG_PB_GEN 0x14 +#define CQ_CFG_PB_GEN 0x0A0 +#define CQ_CFG_PB_GEN_PB_INIT PPC_BIT(45) + +/* + * FIR + * (And-Mask) + * (Or-Mask) + */ +#define X_CQ_FIR 0x30 +#define X_CQ_FIR_AND 0x31 +#define X_CQ_FIR_OR 0x32 +#define CQ_FIR 0x180 +#define CQ_FIR_AND 0x188 +#define CQ_FIR_OR 0x190 +#define CQ_FIR_PB_RCMDX_CI_ERR1 PPC_BIT(19) +#define CQ_FIR_VC_INFO_ERROR_0_2 PPC_BITMASK(61, 63) + +/* + * FIR Mask + * (And-Mask) + * (Or-Mask) + */ +#define X_CQ_FIRMASK 0x33 +#define X_CQ_FIRMASK_AND 0x34 +#define X_CQ_FIRMASK_OR 0x35 +#define CQ_FIRMASK 0x198 +#define CQ_FIRMASK_AND 0x1A0 +#define CQ_FIRMASK_OR 0x1A8 + +/* + * VC0 + */ + +/* VSD table address */ +#define X_VC_VSD_TABLE_ADDR 0x100 +#define VC_VSD_TABLE_ADDR 0x000 +#define VC_VSD_TABLE_AUTOINC PPC_BIT(0) +#define VC_VSD_TABLE_SELECT PPC_BITMASK(12, 15) +#define VC_VSD_TABLE_ADDRESS PPC_BITMASK(28, 31) + +/* VSD table data */ +#define X_VC_VSD_TABLE_DATA 0x101 +#define VC_VSD_TABLE_DATA 0x008 + +/* AIB AT macro indirect kill */ +#define X_VC_AT_MACRO_KILL 0x102 +#define VC_AT_MACRO_KILL 0x010 +#define VC_AT_MACRO_KILL_VALID PPC_BIT(0) +#define VC_AT_MACRO_KILL_VSD PPC_BITMASK(12, 15) +#define VC_AT_MACRO_KILL_BLOCK_ID PPC_BITMASK(28, 31) +#define VC_AT_MACRO_KILL_OFFSET PPC_BITMASK(48, 60) + +/* AIB AT macro indirect kill mask (same bit definitions) */ +#define X_VC_AT_MACRO_KILL_MASK 0x103 +#define VC_AT_MACRO_KILL_MASK 0x018 + +/* Remote IRQs and ERQs configuration [n] (n = 0:6) */ +#define X_VC_QUEUES_CFG_REM0 0x117 + +#define VC_QUEUES_CFG_REM0 0x0B8 +#define VC_QUEUES_CFG_REM1 0x0C0 +#define VC_QUEUES_CFG_REM2 0x0C8 +#define VC_QUEUES_CFG_REM3 0x0D0 +#define VC_QUEUES_CFG_REM4 0x0D8 +#define VC_QUEUES_CFG_REM5 0x0E0 +#define VC_QUEUES_CFG_REM6 0x0E8 +#define VC_QUEUES_CFG_MEMB_EN PPC_BIT(38) +#define VC_QUEUES_CFG_MEMB_SZ PPC_BITMASK(42, 47) + +/* + * VC1 + */ + +/* ESBC cache flush control trigger */ +#define X_VC_ESBC_FLUSH_CTRL 0x140 +#define VC_ESBC_FLUSH_CTRL 0x200 +#define VC_ESBC_FLUSH_CTRL_POLL_VALID PPC_BIT(0) +#define VC_ESBC_FLUSH_CTRL_WANT_CACHE_DISABLE PPC_BIT(2) + +/* ESBC cache flush poll trigger */ +#define X_VC_ESBC_FLUSH_POLL 0x141 +#define VC_ESBC_FLUSH_POLL 0x208 +#define VC_ESBC_FLUSH_POLL_BLOCK_ID PPC_BITMASK(0, 3) +#define VC_ESBC_FLUSH_POLL_OFFSET PPC_BITMASK(4, 31) /* 28-bit */ +#define VC_ESBC_FLUSH_POLL_BLOCK_ID_MASK PPC_BITMASK(32, 35) +#define VC_ESBC_FLUSH_POLL_OFFSET_MASK PPC_BITMASK(36, 63) /* 28-bit */ + +/* EASC flush control register */ +#define X_VC_EASC_FLUSH_CTRL 0x160 +#define VC_EASC_FLUSH_CTRL 0x300 +#define VC_EASC_FLUSH_CTRL_POLL_VALID PPC_BIT(0) +#define VC_EASC_FLUSH_CTRL_WANT_CACHE_DISABLE PPC_BIT(2) + +/* EASC flush poll register */ +#define X_VC_EASC_FLUSH_POLL 0x161 +#define VC_EASC_FLUSH_POLL 0x308 +#define VC_EASC_FLUSH_POLL_BLOCK_ID PPC_BITMASK(0, 3) +#define VC_EASC_FLUSH_POLL_OFFSET PPC_BITMASK(4, 31) /* 28-bit */ +#define VC_EASC_FLUSH_POLL_BLOCK_ID_MASK PPC_BITMASK(32, 35) +#define VC_EASC_FLUSH_POLL_OFFSET_MASK PPC_BITMASK(36, 63) /* 28-bit */ + +/* + * VC2 + */ + +/* ENDC flush control register */ +#define X_VC_ENDC_FLUSH_CTRL 0x180 +#define VC_ENDC_FLUSH_CTRL 0x400 +#define VC_ENDC_FLUSH_CTRL_POLL_VALID PPC_BIT(0) +#define VC_ENDC_FLUSH_CTRL_WANT_CACHE_DISABLE PPC_BIT(2) +#define VC_ENDC_FLUSH_CTRL_WANT_INVALIDATE PPC_BIT(3) +#define VC_ENDC_FLUSH_CTRL_INJECT_INVALIDATE PPC_BIT(7) + +/* ENDC flush poll register */ +#define X_VC_ENDC_FLUSH_POLL 0x181 +#define VC_ENDC_FLUSH_POLL 0x408 +#define VC_ENDC_FLUSH_POLL_BLOCK_ID PPC_BITMASK(4, 7) +#define VC_ENDC_FLUSH_POLL_OFFSET PPC_BITMASK(8, 31) /* 24-bit */ +#define VC_ENDC_FLUSH_POLL_BLOCK_ID_MASK PPC_BITMASK(36, 39) +#define VC_ENDC_FLUSH_POLL_OFFSET_MASK PPC_BITMASK(40, 63) /* 24-bit */ + +/* ENDC Sync done */ +#define X_VC_ENDC_SYNC_DONE 0x184 +#define VC_ENDC_SYNC_DONE 0x420 +#define VC_ENDC_SYNC_POLL_DONE PPC_BITMASK(0, 6) +#define VC_ENDC_SYNC_QUEUE_IPI PPC_BIT(0) +#define VC_ENDC_SYNC_QUEUE_HWD PPC_BIT(1) +#define VC_ENDC_SYNC_QUEUE_NXC PPC_BIT(2) +#define VC_ENDC_SYNC_QUEUE_INT PPC_BIT(3) +#define VC_ENDC_SYNC_QUEUE_OS PPC_BIT(4) +#define VC_ENDC_SYNC_QUEUE_POOL PPC_BIT(5) +#define VC_ENDC_SYNC_QUEUE_HARD PPC_BIT(6) +#define VC_QUEUE_COUNT 7 + +/* ENDC cache watch specification 0 */ +#define X_VC_ENDC_WATCH0_SPEC 0x1A0 +#define VC_ENDC_WATCH0_SPEC 0x500 +#define VC_ENDC_WATCH_CONFLICT PPC_BIT(0) +#define VC_ENDC_WATCH_FULL PPC_BIT(8) +#define VC_ENDC_WATCH_BLOCK_ID PPC_BITMASK(28, 31) +#define VC_ENDC_WATCH_INDEX PPC_BITMASK(40, 63) + +/* ENDC cache watch data 0 */ +#define X_VC_ENDC_WATCH0_DATA0 0x1A4 +#define X_VC_ENDC_WATCH0_DATA1 0x1A5 +#define X_VC_ENDC_WATCH0_DATA2 0x1A6 +#define X_VC_ENDC_WATCH0_DATA3 0x1A7 + +#define VC_ENDC_WATCH0_DATA0 0x520 +#define VC_ENDC_WATCH0_DATA1 0x528 +#define VC_ENDC_WATCH0_DATA2 0x530 +#define VC_ENDC_WATCH0_DATA3 0x538 + +/* + * PC LSB1 + */ + +/* VSD table address register */ +#define X_PC_VSD_TABLE_ADDR 0x200 +#define PC_VSD_TABLE_ADDR 0x000 +#define PC_VSD_TABLE_AUTOINC PPC_BIT(0) +#define PC_VSD_TABLE_SELECT PPC_BITMASK(12, 15) +#define PC_VSD_TABLE_ADDRESS PPC_BITMASK(28, 31) + +/* VSD table data register */ +#define X_PC_VSD_TABLE_DATA 0x201 +#define PC_VSD_TABLE_DATA 0x008 + +/* AT indirect kill register */ +#define X_PC_AT_KILL 0x202 +#define PC_AT_KILL 0x010 +#define PC_AT_KILL_VALID PPC_BIT(0) +#define PC_AT_KILL_VSD_TYPE PPC_BITMASK(24, 27) +/* Only NVP, NVG, NVC */ +#define PC_AT_KILL_BLOCK_ID PPC_BITMASK(28, 31) +#define PC_AT_KILL_OFFSET PPC_BITMASK(48, 60) + +/* AT indirect kill mask register */ +#define X_PC_AT_KILL_MASK 0x203 +#define PC_AT_KILL_MASK 0x018 +#define PC_AT_KILL_MASK_VSD_TYPE PPC_BITMASK(24, 27) +#define PC_AT_KILL_MASK_BLOCK_ID PPC_BITMASK(28, 31) +#define PC_AT_KILL_MASK_OFFSET PPC_BITMASK(48, 60) + +/* + * PC LSB2 + */ + +/* NxC Cache flush control */ +#define X_PC_NXC_FLUSH_CTRL 0x280 +#define PC_NXC_FLUSH_CTRL 0x400 +#define PC_NXC_FLUSH_CTRL_POLL_VALID PPC_BIT(0) +#define PC_NXC_FLUSH_CTRL_WANT_CACHE_DISABLE PPC_BIT(2) +#define PC_NXC_FLUSH_CTRL_WANT_INVALIDATE PPC_BIT(3) +#define PC_NXC_FLUSH_CTRL_INJECT_INVALIDATE PPC_BIT(7) + +/* NxC Cache flush poll */ +#define X_PC_NXC_FLUSH_POLL 0x281 +#define PC_NXC_FLUSH_POLL 0x408 +#define PC_NXC_FLUSH_POLL_NXC_TYPE PPC_BITMASK(2, 3) +#define PC_NXC_FLUSH_POLL_NXC_TYPE_NVP 0 +#define PC_NXC_FLUSH_POLL_NXC_TYPE_NVG 2 +#define PC_NXC_FLUSH_POLL_NXC_TYPE_NVC 3 +#define PC_NXC_FLUSH_POLL_BLOCK_ID PPC_BITMASK(4, 7) +#define PC_NXC_FLUSH_POLL_OFFSET PPC_BITMASK(8, 31) /* 24-bit */ +#define PC_NXC_FLUSH_POLL_NXC_TYPE_MASK PPC_BITMASK(34, 35) /* 0: Ign */ +#define PC_NXC_FLUSH_POLL_BLOCK_ID_MASK PPC_BITMASK(36, 39) +#define PC_NXC_FLUSH_POLL_OFFSET_MASK PPC_BITMASK(40, 63) /* 24-bit */ + +/* NxC Cache Watch 0 Specification */ +#define X_PC_NXC_WATCH0_SPEC 0x2A0 +#define PC_NXC_WATCH0_SPEC 0x500 +#define PC_NXC_WATCH_CONFLICT PPC_BIT(0) +#define PC_NXC_WATCH_FULL PPC_BIT(8) +#define PC_NXC_WATCH_NXC_TYPE PPC_BITMASK(26, 37) +#define PC_NXC_WATCH_NXC_NVP 0 +#define PC_NXC_WATCH_NXC_NVG 2 +#define PC_NXC_WATCH_NXC_NVC 3 +#define PC_NXC_WATCH_BLOCK_ID PPC_BITMASK(28, 31) +#define PC_NXC_WATCH_INDEX PPC_BITMASK(40, 63) + +/* NxC Cache Watch 0 Data */ +#define X_PC_NXC_WATCH0_DATA0 0x2A4 +#define X_PC_NXC_WATCH0_DATA1 0x2A5 +#define X_PC_NXC_WATCH0_DATA2 0x2A6 +#define X_PC_NXC_WATCH0_DATA3 0x2A7 + +#define PC_NXC_WATCH0_DATA0 0x520 +#define PC_NXC_WATCH0_DATA1 0x528 +#define PC_NXC_WATCH0_DATA2 0x530 +#define PC_NXC_WATCH0_DATA3 0x538 + +/* + * TCTXT Registers + */ + +/* Physical Thread Enable0 register */ +#define X_TCTXT_EN0 0x300 +#define TCTXT_EN0 0x000 + +/* Physical Thread Enable0 Set register */ +#define X_TCTXT_EN0_SET 0x302 +#define TCTXT_EN0_SET 0x010 + +/* Physical Thread Enable0 Reset register */ +#define X_TCTXT_EN0_RESET 0x303 +#define TCTXT_EN0_RESET 0x018 + +/* Physical Thread Enable1 register */ +#define X_TCTXT_EN1 0x304 +#define TCTXT_EN1 0x020 + +/* Physical Thread Enable1 Set register */ +#define X_TCTXT_EN1_SET 0x306 +#define TCTXT_EN1_SET 0x030 + +/* Physical Thread Enable1 Reset register */ +#define X_TCTXT_EN1_RESET 0x307 +#define TCTXT_EN1_RESET 0x038 + +/* + * VSD Tables + */ +#define VST_ESB 0 +#define VST_EAS 1 /* No used by PC */ +#define VST_END 2 +#define VST_NVP 3 +#define VST_NVG 4 +#define VST_NVC 5 +#define VST_IC 6 /* No used by PC */ +#define VST_SYNC 7 +#define VST_ERQ 8 /* No used by PC */ + +/* + * Bits in a VSD entry. + * + * Note: the address is naturally aligned, we don't use a PPC_BITMASK, + * but just a mask to apply to the address before OR'ing it in. + * + * Note: VSD_FIRMWARE is a SW bit ! It hijacks an unused bit in the + * VSD and is only meant to be used in indirect mode ! + */ +#define VSD_MODE PPC_BITMASK(0, 1) +#define VSD_MODE_SHARED 1 +#define VSD_MODE_EXCLUSIVE 2 +#define VSD_MODE_FORWARD 3 +#define VSD_FIRMWARE PPC_BIT(2) /* Read warning */ +#define VSD_FIRMWARE2 PPC_BIT(3) /* unused */ +#define VSD_RESERVED PPC_BITMASK(4, 7) /* P10 reserved */ +#define VSD_ADDRESS_MASK 0x00fffffffffff000ull +#define VSD_MIGRATION_REG PPC_BITMASK(52, 55) +#define VSD_INDIRECT PPC_BIT(56) +#define VSD_TSIZE PPC_BITMASK(59, 63) + +#endif /* PPC_PNV_XIVE2_REGS_H */ diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h index d4b0b0e2ff71..f318bb10add4 100644 --- a/include/hw/ppc/pnv.h +++ b/include/hw/ppc/pnv.h @@ -119,10 +119,14 @@ typedef struct Pnv10Chip { PnvChip parent_obj; /*< public >*/ + PnvXive2 xive; Pnv9Psi psi; PnvLpcController lpc; } Pnv10Chip; +#define PNV10_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf) +#define PNV10_PIR2CHIP(pir) (((pir) >> 8) & 0x7f) + typedef struct PnvChipClass { /*< private >*/ SysBusDeviceClass parent_class; @@ -340,10 +344,28 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor); #define PNV10_LPCM_SIZE 0x0000000100000000ull #define PNV10_LPCM_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030000000000ull) +#define PNV10_XIVE2_IC_SIZE 0x0000000002000000ull +#define PNV10_XIVE2_IC_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030200000000ull) + #define PNV10_PSIHB_ESB_SIZE 0x0000000000100000ull #define PNV10_PSIHB_ESB_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030202000000ull) #define PNV10_PSIHB_SIZE 0x0000000000100000ull #define PNV10_PSIHB_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030203000000ull) +#define PNV10_XIVE2_TM_SIZE 0x0000000000040000ull +#define PNV10_XIVE2_TM_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030203180000ull) + +#define PNV10_XIVE2_NVC_SIZE 0x0000000008000000ull +#define PNV10_XIVE2_NVC_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006030208000000ull) + +#define PNV10_XIVE2_NVPG_SIZE 0x0000010000000000ull +#define PNV10_XIVE2_NVPG_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006040000000000ull) + +#define PNV10_XIVE2_ESB_SIZE 0x0000010000000000ull +#define PNV10_XIVE2_ESB_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006050000000000ull) + +#define PNV10_XIVE2_END_SIZE 0x0000020000000000ull +#define PNV10_XIVE2_END_BASE(chip) PNV10_CHIP_BASE(chip, 0x0006060000000000ull) + #endif /* PPC_PNV_H */ diff --git a/include/hw/ppc/pnv_xive.h b/include/hw/ppc/pnv_xive.h index 76cf16f64472..7d8630775786 100644 --- a/include/hw/ppc/pnv_xive.h +++ b/include/hw/ppc/pnv_xive.h @@ -11,6 +11,7 @@ #define PPC_PNV_XIVE_H #include "hw/ppc/xive.h" +#include "hw/ppc/xive2.h" struct PnvChip; @@ -97,4 +98,74 @@ typedef struct PnvXiveClass { void pnv_xive_pic_print_info(PnvXive *xive, Monitor *mon); +/* + * XIVE2 interrupt controller (POWER10) + */ +#define TYPE_PNV_XIVE2 TYPE_PNV_XIVE "2" +#define PNV_XIVE2(obj) OBJECT_CHECK(PnvXive2, (obj), TYPE_PNV_XIVE2) +#define PNV_XIVE2_CLASS(klass) \ + OBJECT_CLASS_CHECK(PnvXive2Class, (klass), TYPE_PNV_XIVE2) +#define PNV_XIVE2_GET_CLASS(obj) \ + OBJECT_GET_CLASS(PnvXive2Class, (obj), TYPE_PNV_XIVE2) + +typedef struct PnvXive2 { + Xive2Router parent_obj; + + /* Owning chip */ + struct PnvChip *chip; + + /* XSCOM addresses giving access to the controller registers */ + MemoryRegion xscom_regs; + + MemoryRegion ic_mmio; + MemoryRegion ic_mmios[8]; + MemoryRegion esb_mmio; + MemoryRegion end_mmio; + MemoryRegion nvc_mmio; + MemoryRegion nvpg_mmio; + MemoryRegion tm_mmio; + + /* Shortcut values for the Main MMIO regions */ + hwaddr ic_base; + uint32_t ic_shift; + hwaddr esb_base; + uint32_t esb_shift; + hwaddr end_base; + uint32_t end_shift; + hwaddr nvc_base; + uint32_t nvc_shift; + hwaddr nvpg_base; + uint32_t nvpg_shift; + hwaddr tm_base; + uint32_t tm_shift; + + /* Interrupt controller registers */ + uint64_t cq_regs[0x40]; + uint64_t vc_regs[0x100]; + uint64_t pc_regs[0x100]; + uint64_t tctxt_regs[0x30]; + + /* Our XIVE source objects for IPIs and ENDs */ + XiveSource ipi_source; + Xive2EndSource end_source; + + /* + * Virtual Structure Descriptor tables + * These are in a SRAM protected by ECC. + */ + uint64_t vsds[9][XIVE_BLOCK_MAX]; + + /* Translation tables */ + uint64_t tables[8][XIVE_BLOCK_MAX]; + +} PnvXive2; + +typedef struct PnvXive2Class { + Xive2RouterClass parent_class; + + DeviceRealize parent_realize; +} PnvXive2Class; + +void pnv_xive2_pic_print_info(PnvXive2 *xive, Monitor *mon); + #endif /* PPC_PNV_XIVE_H */ diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h index 09156a5a7a6f..1211add3e79c 100644 --- a/include/hw/ppc/pnv_xscom.h +++ b/include/hw/ppc/pnv_xscom.h @@ -133,6 +133,9 @@ typedef struct PnvXScomInterfaceClass { #define PNV10_XSCOM_PSIHB_BASE 0x3011D00 #define PNV10_XSCOM_PSIHB_SIZE 0x100 +#define PNV10_XSCOM_XIVE2_BASE 0x2010800 +#define PNV10_XSCOM_XIVE2_SIZE 0x400 + void pnv_xscom_realize(PnvChip *chip, uint64_t size, Error **errp); int pnv_dt_xscom(PnvChip *chip, void *fdt, int root_offset, uint64_t xscom_base, uint64_t xscom_size, diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c new file mode 100644 index 000000000000..761e9406315a --- /dev/null +++ b/hw/intc/pnv_xive2.c @@ -0,0 +1,2026 @@ +/* + * QEMU PowerPC XIVE2 interrupt controller model (POWER10) + * + * Copyright (c) 2019-2020, IBM Corporation. + * + * This code is licensed under the GPL version 2 or later. See the + * COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "qapi/error.h" +#include "target/ppc/cpu.h" +#include "sysemu/cpus.h" +#include "sysemu/dma.h" +#include "monitor/monitor.h" +#include "hw/ppc/fdt.h" +#include "hw/ppc/pnv.h" +#include "hw/ppc/pnv_core.h" +#include "hw/ppc/pnv_xscom.h" +#include "hw/ppc/xive2.h" +#include "hw/ppc/pnv_xive.h" +#include "hw/ppc/xive_regs.h" +#include "hw/ppc/xive2_regs.h" +#include "hw/ppc/ppc.h" +#include "hw/qdev-properties.h" +#include "sysemu/reset.h" + +#include + +#include "pnv_xive2_regs.h" + +#undef XIVE2_DEBUG + +/* + * Virtual structures table (VST) + */ +#define SBE_PER_BYTE 4 + +typedef struct XiveVstInfo { + const char *name; + uint32_t size; + uint32_t max_blocks; +} XiveVstInfo; + +static const XiveVstInfo vst_infos[] = { + + [VST_EAS] = { "EAT", sizeof(Xive2Eas), 16 }, + [VST_ESB] = { "ESB", 1, 16 }, + [VST_END] = { "ENDT", sizeof(Xive2End), 16 }, + + [VST_NVP] = { "NVPT", sizeof(Xive2Nvp), 16 }, + [VST_NVG] = { "NVGT", sizeof(Xive2Nvgc), 16 }, + [VST_NVC] = { "NVCT", sizeof(Xive2Nvgc), 16 }, + + [VST_IC] = { "IC", 1 /* ? */ , 16 }, /* Topology # */ + [VST_SYNC] = { "SYNC", 1 /* ? */ , 16 }, /* Topology # */ + + /* + * This table contains the backing store pages for the interrupt + * fifos of the VC sub-engine in case of overflow. + * + * 0 - IPI, + * 1 - HWD, + * 2 - NxC, + * 3 - INT, + * 4 - OS-Queue, + * 5 - Pool-Queue, + * 6 - Hard-Queue + */ + [VST_ERQ] = { "ERQ", 1, VC_QUEUE_COUNT }, +}; + +#define xive2_error(xive, fmt, ...) \ + qemu_log_mask(LOG_GUEST_ERROR, "XIVE[%x] - " fmt "\n", \ + (xive)->chip->chip_id, ## __VA_ARGS__); + +/* + * QEMU version of the GETFIELD/SETFIELD macros + * + * TODO: It might be better to use the existing extract64() and + * deposit64() but this means that all the register definitions will + * change and become incompatible with the ones found in skiboot. + * + * Keep it as it is for now until we find a common ground. + */ +static inline uint64_t GETFIELD(uint64_t mask, uint64_t word) +{ + return (word & mask) >> ctz64(mask); +} + +static inline uint64_t SETFIELD(uint64_t mask, uint64_t word, + uint64_t value) +{ + return (word & ~mask) | ((value << ctz64(mask)) & mask); +} + +/* + * TODO: Document block id override + */ +static uint32_t pnv_xive2_block_id(PnvXive2 *xive) +{ + uint8_t blk = xive->chip->chip_id; + uint64_t cfg_val = xive->cq_regs[CQ_XIVE_CFG >> 3]; + + if (cfg_val & CQ_XIVE_CFG_HYP_HARD_BLKID_OVERRIDE) { + blk = GETFIELD(CQ_XIVE_CFG_HYP_HARD_BLOCK_ID, cfg_val); + } + + return blk; +} + +/* + * Remote access to controllers. HW uses MMIOs. For now, a simple scan + * of the chips is good enough. + * + * TODO: Block scope support + */ +static PnvXive2 *pnv_xive2_get_remote(uint8_t blk) +{ + PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine()); + int i; + + for (i = 0; i < pnv->num_chips; i++) { + Pnv10Chip *chip10 = PNV10_CHIP(pnv->chips[i]); + PnvXive2 *xive = &chip10->xive; + + if (pnv_xive2_block_id(xive) == blk) { + return xive; + } + } + return NULL; +} + +/* + * VST accessors for ESB, EAT, ENDT, NVP + * + * Indirect VST tables are arrays of VSDs pointing to a page (of same + * size). Each page is a direct VST table. + */ + +#define XIVE_VSD_SIZE 8 + +/* Indirect page size can be 4K, 64K, 2M, 16M. */ +static uint64_t pnv_xive2_vst_page_size_allowed(uint32_t page_shift) +{ + return page_shift == 12 || page_shift == 16 || + page_shift == 21 || page_shift == 24; +} + +static uint64_t pnv_xive2_vst_addr_direct(PnvXive2 *xive, uint32_t type, + uint64_t vsd, uint32_t idx) +{ + const XiveVstInfo *info = &vst_infos[type]; + uint64_t vst_addr = vsd & VSD_ADDRESS_MASK; + uint64_t vst_tsize = 1ull << (GETFIELD(VSD_TSIZE, vsd) + 12); + uint32_t idx_max; + + idx_max = vst_tsize / info->size - 1; + if (idx > idx_max) { +#ifdef XIVE2_DEBUG + xive2_error(xive, "VST: %s entry %x out of range [ 0 .. %x ] !?", + info->name, idx, idx_max); +#endif + return 0; + } + + return vst_addr + idx * info->size; +} + +static uint64_t pnv_xive2_vst_addr_indirect(PnvXive2 *xive, uint32_t type, + uint64_t vsd, uint32_t idx) +{ + const XiveVstInfo *info = &vst_infos[type]; + uint64_t vsd_addr; + uint32_t vsd_idx; + uint32_t page_shift; + uint32_t vst_per_page; + + /* Get the page size of the indirect table. */ + vsd_addr = vsd & VSD_ADDRESS_MASK; + vsd = ldq_be_dma(&address_space_memory, vsd_addr); + + if (!(vsd & VSD_ADDRESS_MASK)) { + xive2_error(xive, "VST: invalid %s entry %x !?", info->name, idx); + return 0; + } + + page_shift = GETFIELD(VSD_TSIZE, vsd) + 12; + + if (!pnv_xive2_vst_page_size_allowed(page_shift)) { + xive2_error(xive, "VST: invalid %s page shift %d", info->name, + page_shift); + return 0; + } + + vst_per_page = (1ull << page_shift) / info->size; + vsd_idx = idx / vst_per_page; + + /* Load the VSD we are looking for, if not already done */ + if (vsd_idx) { + vsd_addr = vsd_addr + vsd_idx * XIVE_VSD_SIZE; + vsd = ldq_be_dma(&address_space_memory, vsd_addr); + + if (!(vsd & VSD_ADDRESS_MASK)) { + xive2_error(xive, "VST: invalid %s entry %x !?", info->name, idx); + return 0; + } + + /* + * Check that the pages have a consistent size across the + * indirect table + */ + if (page_shift != GETFIELD(VSD_TSIZE, vsd) + 12) { + xive2_error(xive, "VST: %s entry %x indirect page size differ !?", + info->name, idx); + return 0; + } + } + + return pnv_xive2_vst_addr_direct(xive, type, vsd, (idx % vst_per_page)); +} + +static uint64_t pnv_xive2_vst_addr(PnvXive2 *xive, uint32_t type, uint8_t blk, + uint32_t idx) +{ + const XiveVstInfo *info = &vst_infos[type]; + uint64_t vsd; + + if (blk >= info->max_blocks) { + xive2_error(xive, "VST: invalid block id %d for VST %s %d !?", + blk, info->name, idx); + return 0; + } + + vsd = xive->vsds[type][blk]; + + /* Remote VST access */ + if (GETFIELD(VSD_MODE, vsd) == VSD_MODE_FORWARD) { + xive = pnv_xive2_get_remote(blk); + + return xive ? pnv_xive2_vst_addr(xive, type, blk, idx) : 0; + } + + if (VSD_INDIRECT & vsd) { + return pnv_xive2_vst_addr_indirect(xive, type, vsd, idx); + } + + return pnv_xive2_vst_addr_direct(xive, type, vsd, idx); +} + +static int pnv_xive2_vst_read(PnvXive2 *xive, uint32_t type, uint8_t blk, + uint32_t idx, void *data) +{ + const XiveVstInfo *info = &vst_infos[type]; + uint64_t addr = pnv_xive2_vst_addr(xive, type, blk, idx); + + if (!addr) { + return -1; + } + + cpu_physical_memory_read(addr, data, info->size); + return 0; +} + +#define XIVE_VST_WORD_ALL -1 + +static int pnv_xive2_vst_write(PnvXive2 *xive, uint32_t type, uint8_t blk, + uint32_t idx, void *data, uint32_t word_number) +{ + const XiveVstInfo *info = &vst_infos[type]; + uint64_t addr = pnv_xive2_vst_addr(xive, type, blk, idx); + + if (!addr) { + return -1; + } + + if (word_number == XIVE_VST_WORD_ALL) { + cpu_physical_memory_write(addr, data, info->size); + } else { + cpu_physical_memory_write(addr + word_number * 4, + data + word_number * 4, 4); + } + return 0; +} + +static int pnv_xive2_get_end(Xive2Router *xrtr, uint8_t blk, uint32_t idx, + Xive2End *end) +{ + return pnv_xive2_vst_read(PNV_XIVE2(xrtr), VST_END, blk, idx, end); +} + +static int pnv_xive2_write_end(Xive2Router *xrtr, uint8_t blk, uint32_t idx, + Xive2End *end, uint8_t word_number) +{ + return pnv_xive2_vst_write(PNV_XIVE2(xrtr), VST_END, blk, idx, end, + word_number); +} + +static int pnv_xive2_end_update(PnvXive2 *xive) +{ + uint8_t blk = GETFIELD(VC_ENDC_WATCH_BLOCK_ID, + xive->vc_regs[(VC_ENDC_WATCH0_SPEC >> 3)]); + uint32_t idx = GETFIELD(VC_ENDC_WATCH_INDEX, + xive->vc_regs[(VC_ENDC_WATCH0_SPEC >> 3)]); + int i; + uint64_t endc_watch[4]; + + for (i = 0; i < ARRAY_SIZE(endc_watch); i++) { + endc_watch[i] = + cpu_to_be64(xive->vc_regs[(VC_ENDC_WATCH0_DATA0 >> 3) + i]); + } + + return pnv_xive2_vst_write(xive, VST_END, blk, idx, endc_watch, + XIVE_VST_WORD_ALL); +} + +static void pnv_xive2_end_cache_load(PnvXive2 *xive) +{ + uint8_t blk = GETFIELD(VC_ENDC_WATCH_BLOCK_ID, + xive->vc_regs[(VC_ENDC_WATCH0_SPEC >> 3)]); + uint32_t idx = GETFIELD(VC_ENDC_WATCH_INDEX, + xive->vc_regs[(VC_ENDC_WATCH0_SPEC >> 3)]); + uint64_t endc_watch[4] = { 0 }; + int i; + + if (pnv_xive2_vst_read(xive, VST_END, blk, idx, endc_watch)) { + xive2_error(xive, "VST: no END entry %x/%x !?", blk, idx); + } + + for (i = 0; i < ARRAY_SIZE(endc_watch); i++) { + xive->vc_regs[(VC_ENDC_WATCH0_DATA0 >> 3) + i] = + be64_to_cpu(endc_watch[i]); + } +} + +static int pnv_xive2_get_nvp(Xive2Router *xrtr, uint8_t blk, uint32_t idx, + Xive2Nvp *nvp) +{ + return pnv_xive2_vst_read(PNV_XIVE2(xrtr), VST_NVP, blk, idx, nvp); +} + +static int pnv_xive2_write_nvp(Xive2Router *xrtr, uint8_t blk, uint32_t idx, + Xive2Nvp *nvp, uint8_t word_number) +{ + return pnv_xive2_vst_write(PNV_XIVE2(xrtr), VST_NVP, blk, idx, nvp, + word_number); +} + +static int pnv_xive2_nvp_update(PnvXive2 *xive) +{ + uint8_t blk = GETFIELD(PC_NXC_WATCH_BLOCK_ID, + xive->pc_regs[(PC_NXC_WATCH0_SPEC >> 3)]); + uint32_t idx = GETFIELD(PC_NXC_WATCH_INDEX, + xive->pc_regs[(PC_NXC_WATCH0_SPEC >> 3)]); + int i; + uint64_t nxc_watch[4]; + + for (i = 0; i < ARRAY_SIZE(nxc_watch); i++) { + nxc_watch[i] = + cpu_to_be64(xive->pc_regs[(PC_NXC_WATCH0_DATA0 >> 3) + i]); + } + + return pnv_xive2_vst_write(xive, VST_NVP, blk, idx, nxc_watch, + XIVE_VST_WORD_ALL); +} + +static void pnv_xive2_nvp_cache_load(PnvXive2 *xive) +{ + uint8_t blk = GETFIELD(PC_NXC_WATCH_BLOCK_ID, + xive->pc_regs[(PC_NXC_WATCH0_SPEC >> 3)]); + uint32_t idx = GETFIELD(PC_NXC_WATCH_INDEX, + xive->pc_regs[(PC_NXC_WATCH0_SPEC >> 3)]); + uint64_t nxc_watch[4] = { 0 }; + int i; + + if (pnv_xive2_vst_read(xive, VST_NVP, blk, idx, nxc_watch)) { + xive2_error(xive, "VST: no NVP entry %x/%x !?", blk, idx); + } + + for (i = 0; i < ARRAY_SIZE(nxc_watch); i++) { + xive->pc_regs[(PC_NXC_WATCH0_DATA0 >> 3) + i] = + be64_to_cpu(nxc_watch[i]); + } +} + +static int pnv_xive2_get_eas(Xive2Router *xrtr, uint8_t blk, uint32_t idx, + Xive2Eas *eas) +{ + PnvXive2 *xive = PNV_XIVE2(xrtr); + + if (pnv_xive2_block_id(xive) != blk) { + xive2_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx)); + return -1; + } + + return pnv_xive2_vst_read(xive, VST_EAS, blk, idx, eas); +} + +static bool pnv_xive2_is_cpu_enabled(PnvXive2 *xive, PowerPCCPU *cpu) +{ + int pir = ppc_cpu_pir(cpu); + uint32_t fc = PNV10_PIR2FUSEDCORE(pir); + uint64_t reg = fc < 8 ? TCTXT_EN0 : TCTXT_EN1; + uint32_t bit = pir & 0x3f; + + return xive->tctxt_regs[reg >> 3] & PPC_BIT(bit); +} + +static int pnv_xive2_match_nvt(XivePresenter *xptr, uint8_t format, + uint8_t nvt_blk, uint32_t nvt_idx, + bool cam_ignore, uint8_t priority, + uint32_t logic_serv, XiveTCTXMatch *match) +{ + PnvXive2 *xive = PNV_XIVE2(xptr); + PnvChip *chip = xive->chip; + int count = 0; + int i, j; + + for (i = 0; i < chip->nr_cores; i++) { + PnvCore *pc = chip->cores[i]; + CPUCore *cc = CPU_CORE(pc); + + for (j = 0; j < cc->nr_threads; j++) { + PowerPCCPU *cpu = pc->threads[j]; + XiveTCTX *tctx; + int ring; + + if (!pnv_xive2_is_cpu_enabled(xive, cpu)) { + continue; + } + + tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc); + + ring = xive2_presenter_tctx_match(xptr, tctx, format, nvt_blk, + nvt_idx, cam_ignore, + logic_serv); + + /* + * Save the context and follow on to catch duplicates, + * that we don't support yet. + */ + if (ring != -1) { + if (match->tctx) { + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: already found a " + "thread context NVT %x/%x\n", + nvt_blk, nvt_idx); + return false; + } + + match->ring = ring; + match->tctx = tctx; + count++; + } + } + } + + return count; +} + +static uint8_t pnv_xive2_get_block_id(Xive2Router *xrtr) +{ + return pnv_xive2_block_id(PNV_XIVE2(xrtr)); +} + +/* + * The TIMA MMIO space is shared among the chips and to identify the + * chip from which the access is being done, we extract the chip id + * from the PIR. + */ +static PnvXive2 *pnv_xive2_tm_get_xive(PowerPCCPU *cpu) +{ + int pir = ppc_cpu_pir(cpu); + XivePresenter *xptr = XIVE_TCTX(pnv_cpu_state(cpu)->intc)->xptr; + PnvXive2 *xive = PNV_XIVE2(xptr); + + if (!pnv_xive2_is_cpu_enabled(xive, cpu)) { + xive2_error(xive, "IC: CPU %x is not enabled", pir); + } + return xive; +} + +/* + * The internal sources of the interrupt controller have no knowledge + * of the XIVE2 chip on which they reside. Encode the block id in the + * source interrupt number before forwarding the source event + * notification to the Router. This is required on a multichip system. + */ +static void pnv_xive2_notify(XiveNotifier *xn, uint32_t srcno) +{ + PnvXive2 *xive = PNV_XIVE2(xn); + uint8_t blk = pnv_xive2_block_id(xive); + + xive2_router_notify(xn, XIVE_EAS(blk, srcno)); +} + +/* + * Set Translation Tables + * + * TODO add support for multiple sets + */ +static int pnv_xive2_stt_set_data(PnvXive2 *xive, uint64_t val) +{ + uint8_t tsel = GETFIELD(CQ_TAR_SELECT, xive->cq_regs[CQ_TAR >> 3]); + uint8_t entry = GETFIELD(CQ_TAR_ENTRY_SELECT, + xive->cq_regs[CQ_TAR >> 3]); + + switch (tsel) { + case CQ_TAR_NVPG: + case CQ_TAR_ESB: + case CQ_TAR_END: + xive->tables[tsel][entry] = val; + break; + default: + xive2_error(xive, "IC: unsupported table %d", tsel); + return -1; + } + + if (xive->cq_regs[CQ_TAR >> 3] & CQ_TAR_AUTOINC) { + xive->cq_regs[CQ_TAR >> 3] = SETFIELD(CQ_TAR_ENTRY_SELECT, + xive->cq_regs[CQ_TAR >> 3], ++entry); + } + + return 0; +} +/* + * Virtual Structure Tables (VST) configuration + */ +static void pnv_xive2_vst_set_exclusive(PnvXive2 *xive2, uint8_t type, + uint8_t blk, uint64_t vsd) +{ + Xive2EndSource *end_xsrc = &xive2->end_source; + XiveSource *xsrc = &xive2->ipi_source; + const XiveVstInfo *info = &vst_infos[type]; + uint32_t page_shift = GETFIELD(VSD_TSIZE, vsd) + 12; + uint64_t vst_tsize = 1ull << page_shift; + uint64_t vst_addr = vsd & VSD_ADDRESS_MASK; + + /* Basic checks */ + + if (VSD_INDIRECT & vsd) { + if (!pnv_xive2_vst_page_size_allowed(page_shift)) { + xive2_error(xive2, "VST: invalid %s page shift %d", info->name, + page_shift); + return; + } + } + + if (!QEMU_IS_ALIGNED(vst_addr, 1ull << page_shift)) { + xive2_error(xive2, "VST: %s table address 0x%"PRIx64 + " is not aligned with page shift %d", + info->name, vst_addr, page_shift); + return; + } + + /* Record the table configuration (in SRAM on HW) */ + xive2->vsds[type][blk] = vsd; + + /* Now tune the models with the configuration provided by the FW */ + + switch (type) { + case VST_ESB: + /* + * Backing store pages for the source PQ bits. The model does + * not use these PQ bits backed in RAM because the XiveSource + * model has its own. + * + * If the table is direct, we can compute the number of PQ + * entries provisioned by FW (such as skiboot) and resize the + * ESB window accordingly. + */ + if (!(VSD_INDIRECT & vsd)) { + memory_region_set_size(&xsrc->esb_mmio, vst_tsize * SBE_PER_BYTE + * (1ull << xsrc->esb_shift)); + } + + memory_region_add_subregion(&xive2->esb_mmio, 0, &xsrc->esb_mmio); + break; + + case VST_EAS: /* Nothing to be done */ + break; + + case VST_END: + /* + * Backing store pages for the END. + */ + if (!(VSD_INDIRECT & vsd)) { + memory_region_set_size(&end_xsrc->esb_mmio, (vst_tsize / info->size) + * (1ull << xsrc->esb_shift)); + } + memory_region_add_subregion(&xive2->end_mmio, 0, &end_xsrc->esb_mmio); + break; + + case VST_NVP: /* Not modeled */ + case VST_NVG: /* Not modeled */ + case VST_NVC: /* Not modeled */ + case VST_IC: /* Not modeled */ + case VST_SYNC: /* Not modeled */ + case VST_ERQ: /* Not modeled */ + break; + + default: + g_assert_not_reached(); + } +} + +/* + * Both PC and VC sub-engines are configured as each use the Virtual + * Structure Tables + */ +static void pnv_xive2_vst_set_data(PnvXive2 *xive2, uint64_t vsd) +{ + uint8_t mode = GETFIELD(VSD_MODE, vsd); + uint8_t type = GETFIELD(VC_VSD_TABLE_SELECT, + xive2->vc_regs[VC_VSD_TABLE_ADDR >> 3]); + uint8_t blk = GETFIELD(VC_VSD_TABLE_ADDRESS, + xive2->vc_regs[VC_VSD_TABLE_ADDR >> 3]); + uint64_t vst_addr = vsd & VSD_ADDRESS_MASK; + + if (type > VST_ERQ) { + xive2_error(xive2, "VST: invalid table type %d", type); + return; + } + + if (blk >= vst_infos[type].max_blocks) { + xive2_error(xive2, "VST: invalid block id %d for" + " %s table", blk, vst_infos[type].name); + return; + } + + if (!vst_addr) { + xive2_error(xive2, "VST: invalid %s table address", + vst_infos[type].name); + return; + } + + switch (mode) { + case VSD_MODE_FORWARD: + xive2->vsds[type][blk] = vsd; + break; + + case VSD_MODE_EXCLUSIVE: + pnv_xive2_vst_set_exclusive(xive2, type, blk, vsd); + break; + + default: + xive2_error(xive2, "VST: unsupported table mode %d", mode); + return; + } +} + +/* + * MMIO handlers + */ + + +/* + * IC BAR layout + * + * Page 0: Internal CQ register accesses (reads & writes) + * Page 1: Internal PC register accesses (reads & writes) + * Page 2: Internal VC register accesses (reads & writes) + * Page 3: Internal TCTXT (TIMA) reg accesses (read & writes) + * Page 4: Notify Port page (writes only, w/data), + * Page 5: Reserved + * Page 6: Sync Poll page (writes only, dataless) + * Page 7: Sync Inject page (writes only, dataless) + * Page 8: LSI Trigger page (writes only, dataless) + * Page 9: LSI SB Management page (reads & writes dataless) + * Pages 10-255: Reserved + * Pages 256-383: Direct mapped Thread Context Area (reads & writes) + * covering the 128 threads in P10. + * Pages 384-511: Reserved + */ +typedef struct PnvXive2Region { + const char *name; + uint32_t pgoff; + uint32_t pgsize; + const MemoryRegionOps *ops; +} PnvXive2Region; + +static const MemoryRegionOps pnv_xive2_ic_cq_ops; +static const MemoryRegionOps pnv_xive2_ic_pc_ops; +static const MemoryRegionOps pnv_xive2_ic_vc_ops; +static const MemoryRegionOps pnv_xive2_ic_tctxt_ops; +static const MemoryRegionOps pnv_xive2_ic_notify_ops; +static const MemoryRegionOps pnv_xive2_ic_sync_ops; +static const MemoryRegionOps pnv_xive2_ic_lsi_ops; +static const MemoryRegionOps pnv_xive2_ic_tm_indirect_ops; + +/* 512 pages. 4K: 2M range, 64K: 32M range */ +static const PnvXive2Region pnv_xive2_ic_regions[] = { + { "xive-ic-cq", 0, 1, &pnv_xive2_ic_cq_ops }, + { "xive-ic-vc", 1, 1, &pnv_xive2_ic_vc_ops }, + { "xive-ic-pc", 2, 1, &pnv_xive2_ic_pc_ops }, + { "xive-ic-tctxt", 3, 1, &pnv_xive2_ic_tctxt_ops }, + { "xive-ic-notify", 4, 1, &pnv_xive2_ic_notify_ops }, + /* page 5 reserved */ + { "xive-ic-sync", 6, 2, &pnv_xive2_ic_sync_ops }, + { "xive-ic-lsi", 8, 2, &pnv_xive2_ic_lsi_ops }, + /* pages 10-255 reserved */ + { "xive-ic-tm-indirect", 256, 128, &pnv_xive2_ic_tm_indirect_ops }, + /* pages 384-511 reserved */ +}; + +/* + * CQ operations + */ + +static uint64_t pnv_xive2_ic_cq_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint32_t reg = offset >> 3; + uint64_t val = 0; + + switch (offset) { + case CQ_XIVE_CAP: /* Set at reset */ + case CQ_XIVE_CFG: + val = xive->cq_regs[reg]; + break; + case CQ_MSGSND: /* TODO check the #cores of the machine */ + val = 0xffffffff00000000; + break; + case CQ_CFG_PB_GEN: + val = CQ_CFG_PB_GEN_PB_INIT; /* TODO: fix CQ_CFG_PB_GEN default value */ + break; + default: + xive2_error(xive, "CQ: invalid read @%"HWADDR_PRIx, offset); + } + + return val; +} + +static uint64_t pnv_xive2_bar_size(uint64_t val) +{ + return 1ull << (GETFIELD(CQ_BAR_RANGE, val) + 24); +} + +static void pnv_xive2_ic_cq_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive2 = PNV_XIVE2(opaque); + MemoryRegion *sysmem = get_system_memory(); + uint32_t reg = offset >> 3; + int i; + + switch (offset) { + case CQ_XIVE_CFG: + case CQ_RST_CTL: /* TODO: reset all BARs */ + break; + + case CQ_IC_BAR: + xive2->ic_shift = val & CQ_IC_BAR_64K ? 16 : 12; + if (!(val & CQ_IC_BAR_VALID)) { + xive2->ic_base = 0; + if (xive2->cq_regs[reg] & CQ_IC_BAR_VALID) { + for (i = 0; i < ARRAY_SIZE(xive2->ic_mmios); i++) { + memory_region_del_subregion(&xive2->ic_mmio, + &xive2->ic_mmios[i]); + } + memory_region_del_subregion(sysmem, &xive2->ic_mmio); + } + } else { + xive2->ic_base = val & ~(CQ_IC_BAR_VALID | CQ_IC_BAR_64K); + if (!(xive2->cq_regs[reg] & CQ_IC_BAR_VALID)) { + for (i = 0; i < ARRAY_SIZE(xive2->ic_mmios); i++) { + memory_region_add_subregion(&xive2->ic_mmio, + pnv_xive2_ic_regions[i].pgoff << xive2->ic_shift, + &xive2->ic_mmios[i]); + } + memory_region_add_subregion(sysmem, xive2->ic_base, + &xive2->ic_mmio); + } + } + break; + + case CQ_TM_BAR: + xive2->tm_shift = val & CQ_TM_BAR_64K ? 16 : 12; + if (!(val & CQ_TM_BAR_VALID)) { + xive2->tm_base = 0; + if (xive2->cq_regs[reg] & CQ_TM_BAR_VALID) { + memory_region_del_subregion(sysmem, &xive2->tm_mmio); + } + } else { + xive2->tm_base = val & ~(CQ_TM_BAR_VALID | CQ_TM_BAR_64K); + if (!(xive2->cq_regs[reg] & CQ_TM_BAR_VALID)) { + memory_region_add_subregion(sysmem, xive2->tm_base, + &xive2->tm_mmio); + } + } + break; + + case CQ_ESB_BAR: + xive2->esb_shift = val & CQ_BAR_64K ? 16 : 12; + if (!(val & CQ_BAR_VALID)) { + xive2->esb_base = 0; + if (xive2->cq_regs[reg] & CQ_BAR_VALID) { + memory_region_del_subregion(sysmem, &xive2->esb_mmio); + } + } else { + xive2->esb_base = val & CQ_BAR_ADDR; + if (!(xive2->cq_regs[reg] & CQ_BAR_VALID)) { + memory_region_set_size(&xive2->esb_mmio, + pnv_xive2_bar_size(val)); + memory_region_add_subregion(sysmem, xive2->esb_base, + &xive2->esb_mmio); + } + } + break; + + case CQ_END_BAR: + xive2->end_shift = val & CQ_BAR_64K ? 16 : 12; + if (!(val & CQ_BAR_VALID)) { + xive2->end_base = 0; + if (xive2->cq_regs[reg] & CQ_BAR_VALID) { + memory_region_del_subregion(sysmem, &xive2->end_mmio); + } + } else { + xive2->end_base = val & CQ_BAR_ADDR; + if (!(xive2->cq_regs[reg] & CQ_BAR_VALID)) { + memory_region_set_size(&xive2->end_mmio, + pnv_xive2_bar_size(val)); + memory_region_add_subregion(sysmem, xive2->end_base, + &xive2->end_mmio); + } + } + break; + + case CQ_NVC_BAR: + xive2->nvc_shift = val & CQ_BAR_64K ? 16 : 12; + if (!(val & CQ_BAR_VALID)) { + xive2->nvc_base = 0; + if (xive2->cq_regs[reg] & CQ_BAR_VALID) { + memory_region_del_subregion(sysmem, &xive2->nvc_mmio); + } + } else { + xive2->nvc_base = val & CQ_BAR_ADDR; + if (!(xive2->cq_regs[reg] & CQ_BAR_VALID)) { + memory_region_set_size(&xive2->nvc_mmio, + pnv_xive2_bar_size(val)); + memory_region_add_subregion(sysmem, xive2->nvc_base, + &xive2->nvc_mmio); + } + } + break; + + case CQ_NVPG_BAR: + xive2->nvpg_shift = val & CQ_BAR_64K ? 16 : 12; + if (!(val & CQ_BAR_VALID)) { + xive2->nvpg_base = 0; + if (xive2->cq_regs[reg] & CQ_BAR_VALID) { + memory_region_del_subregion(sysmem, &xive2->nvpg_mmio); + } + } else { + xive2->nvpg_base = val & CQ_BAR_ADDR; + if (!(xive2->cq_regs[reg] & CQ_BAR_VALID)) { + memory_region_set_size(&xive2->nvpg_mmio, + pnv_xive2_bar_size(val)); + memory_region_add_subregion(sysmem, xive2->nvpg_base, + &xive2->nvpg_mmio); + } + } + break; + + case CQ_TAR: /* Set Translation Table Address */ + break; + case CQ_TDR: /* Set Translation Table Data */ + pnv_xive2_stt_set_data(xive2, val); + break; + case CQ_FIRMASK_OR: /* FIR error reporting */ + break; + default: + xive2_error(xive2, "CQ: invalid write 0x%"HWADDR_PRIx, offset); + return; + } + + xive2->cq_regs[reg] = val; +} + +static const MemoryRegionOps pnv_xive2_ic_cq_ops = { + .read = pnv_xive2_ic_cq_read, + .write = pnv_xive2_ic_cq_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +static uint64_t pnv_xive2_ic_vc_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint64_t val = 0; + uint32_t reg = offset >> 3; + + switch (offset) { + /* + * VSD table settings. + */ + case VC_VSD_TABLE_ADDR: + case VC_VSD_TABLE_DATA: + val = xive->vc_regs[reg]; + break; + + /* + * ESB cache updates (not modeled) + */ + case VC_ESBC_FLUSH_CTRL: + xive->vc_regs[reg] &= ~VC_ESBC_FLUSH_CTRL_POLL_VALID; + val = xive->vc_regs[reg]; + break; + + /* + * EAS cache updates (not modeled) + */ + case VC_EASC_FLUSH_CTRL: + xive->vc_regs[reg] &= ~VC_EASC_FLUSH_CTRL_POLL_VALID; + val = xive->vc_regs[reg]; + break; + + /* + * END cache updates + */ + case VC_ENDC_WATCH0_SPEC: + xive->vc_regs[reg] &= ~(VC_ENDC_WATCH_FULL | VC_ENDC_WATCH_CONFLICT); + val = xive->vc_regs[reg]; + break; + + case VC_ENDC_WATCH0_DATA0: + /* + * Load DATA registers from cache with data requested by the + * SPEC register + */ + pnv_xive2_end_cache_load(xive); + val = xive->vc_regs[reg]; + break; + + case VC_ENDC_WATCH0_DATA1 ... VC_ENDC_WATCH0_DATA3: + val = xive->vc_regs[reg]; + break; + + case VC_ENDC_FLUSH_CTRL: + xive->vc_regs[reg] &= ~VC_ENDC_FLUSH_CTRL_POLL_VALID; + val = xive->vc_regs[reg]; + break; + + /* + * Indirect invalidation + */ + case VC_AT_MACRO_KILL_MASK: + val = xive->vc_regs[reg]; + break; + + case VC_AT_MACRO_KILL: + xive->vc_regs[reg] &= ~VC_AT_MACRO_KILL_VALID; + val = xive->vc_regs[reg]; + break; + + /* + * Interrupt fifo overflow in memory backing store (Not modeled) + */ + case VC_QUEUES_CFG_REM0 ... VC_QUEUES_CFG_REM6: + val = xive->vc_regs[reg]; + break; + + /* + * Synchronisation + */ + case VC_ENDC_SYNC_DONE: + val = VC_ENDC_SYNC_POLL_DONE; + break; + default: + xive2_error(xive, "VC: invalid read @%"HWADDR_PRIx, offset); + } + + return val; +} + +static void pnv_xive2_ic_vc_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint32_t reg = offset >> 3; + + switch (offset) { + /* + * VSD table settings. + */ + case VC_VSD_TABLE_ADDR: + break; + case VC_VSD_TABLE_DATA: + pnv_xive2_vst_set_data(xive, val); + break; + + /* + * ESB cache updates (not modeled) + */ + /* case VC_ESBC_FLUSH_CTRL: */ + case VC_ESBC_FLUSH_POLL: + xive->vc_regs[VC_ESBC_FLUSH_CTRL >> 3] |= VC_ESBC_FLUSH_CTRL_POLL_VALID; + /* ESB update */ + break; + + /* + * EAS cache updates (not modeled) + */ + /* case VC_EASC_FLUSH_CTRL: */ + case VC_EASC_FLUSH_POLL: + xive->vc_regs[VC_EASC_FLUSH_CTRL >> 3] |= VC_EASC_FLUSH_CTRL_POLL_VALID; + /* EAS update */ + break; + + /* + * END cache updates + */ + case VC_ENDC_WATCH0_SPEC: + val &= ~VC_ENDC_WATCH_CONFLICT; /* HW will set this bit */ + break; + + case VC_ENDC_WATCH0_DATA1 ... VC_ENDC_WATCH0_DATA3: + break; + case VC_ENDC_WATCH0_DATA0: + /* writing to DATA0 triggers the cache write */ + xive->vc_regs[reg] = val; + pnv_xive2_end_update(xive); + break; + + + /* case VC_ENDC_FLUSH_CTRL: */ + case VC_ENDC_FLUSH_POLL: + xive->vc_regs[VC_ENDC_FLUSH_CTRL >> 3] |= VC_ENDC_FLUSH_CTRL_POLL_VALID; + break; + + /* + * Indirect invalidation + */ + case VC_AT_MACRO_KILL: + case VC_AT_MACRO_KILL_MASK: + break; + + /* + * Interrupt fifo overflow in memory backing store (Not modeled) + */ + case VC_QUEUES_CFG_REM0 ... VC_QUEUES_CFG_REM6: + break; + + /* + * Synchronisation + */ + case VC_ENDC_SYNC_DONE: + break; + + default: + xive2_error(xive, "VC: invalid write @%"HWADDR_PRIx, offset); + return; + } + + xive->vc_regs[reg] = val; +} + +static const MemoryRegionOps pnv_xive2_ic_vc_ops = { + .read = pnv_xive2_ic_vc_read, + .write = pnv_xive2_ic_vc_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +static uint64_t pnv_xive2_ic_pc_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint64_t val = -1; + uint32_t reg = offset >> 3; + + switch (offset) { + /* + * VSD table settings. + */ + case PC_VSD_TABLE_ADDR: + case PC_VSD_TABLE_DATA: + val = xive->pc_regs[reg]; + break; + + /* + * cache updates + */ + case PC_NXC_WATCH0_SPEC: + xive->pc_regs[reg] &= ~(PC_NXC_WATCH_FULL | PC_NXC_WATCH_CONFLICT); + val = xive->pc_regs[reg]; + break; + + case PC_NXC_WATCH0_DATA0: + /* + * Load DATA registers from cache with data requested by the + * SPEC register + */ + pnv_xive2_nvp_cache_load(xive); + val = xive->pc_regs[reg]; + break; + + case PC_NXC_WATCH0_DATA1 ... PC_NXC_WATCH0_DATA3: + val = xive->pc_regs[reg]; + break; + + case PC_NXC_FLUSH_CTRL: + xive->pc_regs[reg] &= ~PC_NXC_FLUSH_CTRL_POLL_VALID; + val = xive->pc_regs[reg]; + break; + + /* + * Indirect invalidation + */ + case PC_AT_KILL: + xive->pc_regs[reg] &= ~PC_AT_KILL_VALID; + val = xive->pc_regs[reg]; + break; + + default: + xive2_error(xive, "PC: invalid read @%"HWADDR_PRIx, offset); + } + + return val; +} + +static void pnv_xive2_ic_pc_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint32_t reg = offset >> 3; + + switch (offset) { + + /* + * VSD table settings. Only taken into account in the VC + * sub-engine because the Xive2Router model combines both VC and PC + * sub-engines + */ + case PC_VSD_TABLE_ADDR: + case PC_VSD_TABLE_DATA: + break; + + /* + * cache updates + */ + case PC_NXC_WATCH0_SPEC: + val &= ~PC_NXC_WATCH_CONFLICT; /* HW will set this bit */ + break; + + case PC_NXC_WATCH0_DATA1 ... PC_NXC_WATCH0_DATA3: + break; + case PC_NXC_WATCH0_DATA0: + /* writing to DATA0 triggers the cache write */ + xive->pc_regs[reg] = val; + pnv_xive2_nvp_update(xive); + break; + + /* case PC_NXC_FLUSH_CTRL: */ + case PC_NXC_FLUSH_POLL: + xive->pc_regs[PC_NXC_FLUSH_CTRL >> 3] |= PC_NXC_FLUSH_CTRL_POLL_VALID; + break; + + /* + * Indirect invalidation + */ + case PC_AT_KILL: + case PC_AT_KILL_MASK: + break; + + default: + xive2_error(xive, "PC: invalid write @%"HWADDR_PRIx, offset); + return; + } + + xive->pc_regs[reg] = val; +} + +static const MemoryRegionOps pnv_xive2_ic_pc_ops = { + .read = pnv_xive2_ic_pc_read, + .write = pnv_xive2_ic_pc_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + + +static uint64_t pnv_xive2_ic_tctxt_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint64_t val = -1; + uint32_t reg = offset >> 3; + + switch (offset) { + /* + * XIVE2 hardware thread enablement + */ + case TCTXT_EN0: + case TCTXT_EN1: + val = xive->tctxt_regs[reg]; + break; + + case TCTXT_EN0_SET: + case TCTXT_EN0_RESET: + val = xive->tctxt_regs[TCTXT_EN0 >> 3]; + break; + case TCTXT_EN1_SET: + case TCTXT_EN1_RESET: + val = xive->tctxt_regs[TCTXT_EN1 >> 3]; + break; + default: + xive2_error(xive, "TCTXT: invalid read @%"HWADDR_PRIx, offset); + } + + return val; +} + +static void pnv_xive2_ic_tctxt_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint32_t reg = offset >> 3; + + switch (offset) { + /* + * XIVE2 hardware thread enablement + */ + case TCTXT_EN0: /* Physical Thread Enable */ + case TCTXT_EN1: /* Physical Thread Enable (fused core) */ + break; + + case TCTXT_EN0_SET: + xive->tctxt_regs[TCTXT_EN0 >> 3] |= val; + break; + case TCTXT_EN1_SET: + xive->tctxt_regs[TCTXT_EN1 >> 3] |= val; + break; + case TCTXT_EN0_RESET: + xive->tctxt_regs[TCTXT_EN0 >> 3] &= ~val; + break; + case TCTXT_EN1_RESET: + xive->tctxt_regs[TCTXT_EN1 >> 3] &= ~val; + break; + + default: + xive2_error(xive, "TCTXT: invalid write @%"HWADDR_PRIx, offset); + return; + } + + xive->pc_regs[reg] = val; +} + +static const MemoryRegionOps pnv_xive2_ic_tctxt_ops = { + .read = pnv_xive2_ic_tctxt_read, + .write = pnv_xive2_ic_tctxt_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +/* + * Redirect XSCOM to MMIO handlers + */ +static uint64_t pnv_xive2_xscom_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint64_t val = -1; + uint32_t xscom_reg = offset >> 3; + uint32_t mmio_offset = (xscom_reg & 0xFF) << 3; + + switch (xscom_reg) { + case 0x000 ... 0x0FF: + val = pnv_xive2_ic_cq_read(opaque, mmio_offset, size); + break; + case 0x100 ... 0x1FF: + val = pnv_xive2_ic_vc_read(opaque, mmio_offset, size); + break; + case 0x200 ... 0x2FF: + val = pnv_xive2_ic_pc_read(opaque, mmio_offset, size); + break; + case 0x300 ... 0x3FF: + val = pnv_xive2_ic_tctxt_read(opaque, mmio_offset, size); + break; + default: + xive2_error(xive, "XSCOM: invalid read @%"HWADDR_PRIx, offset); + } + + return val; +} + +static void pnv_xive2_xscom_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint32_t xscom_reg = offset >> 3; + uint32_t mmio_offset = (xscom_reg & 0xFF) << 3; + + switch (xscom_reg) { + case 0x000 ... 0x0FF: + pnv_xive2_ic_cq_write(opaque, mmio_offset, val, size); + break; + case 0x100 ... 0x1FF: + pnv_xive2_ic_vc_write(opaque, mmio_offset, val, size); + break; + case 0x200 ... 0x2FF: + pnv_xive2_ic_pc_write(opaque, mmio_offset, val, size); + break; + case 0x300 ... 0x3FF: + pnv_xive2_ic_tctxt_write(opaque, mmio_offset, val, size); + break; + default: + xive2_error(xive, "XSCOM: invalid write @%"HWADDR_PRIx, offset); + } +} + +static const MemoryRegionOps pnv_xive2_xscom_ops = { + .read = pnv_xive2_xscom_read, + .write = pnv_xive2_xscom_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +/* + * Notify port page. The layout is compatible between 4K and 64K pages : + * + * Page 1 Notify page (writes only) + * 0x000 - 0x7FF IPI interrupt (NPU) + * 0x800 - 0xFFF HW interrupt triggers (PSI, PHB) + */ + +static void pnv_xive2_ic_hw_trigger(PnvXive2 *xive, hwaddr addr, + uint64_t val) +{ + uint8_t blk; + uint32_t idx; + + if (val & XIVE_TRIGGER_END) { + xive2_error(xive, "IC: END trigger at @0x%"HWADDR_PRIx" data 0x%"PRIx64, + addr, val); + return; + } + + /* + * Forward the source event notification directly to the Router. + * The source interrupt number should already be correctly encoded + * with the chip block id by the sending device (PHB, PSI). + */ + blk = XIVE_EAS_BLOCK(val); + idx = XIVE_EAS_INDEX(val); + + xive2_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx)); +} + +static void pnv_xive2_ic_notify_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + /* VC: IPI triggers */ + switch (offset) { + case 0x000 ... 0x7FF: + /* TODO: check IPI notify sub-page routing */ + pnv_xive2_ic_hw_trigger(opaque, offset, val); + break; + + /* VC: HW triggers */ + case 0x800 ... 0xFFF: + pnv_xive2_ic_hw_trigger(opaque, offset, val); + break; + + default: + xive2_error(xive, "NOTIFY: invalid write @%"HWADDR_PRIx, offset); + } +} + +static uint64_t pnv_xive2_ic_notify_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + /* loads are invalid */ + xive2_error(xive, "NOTIFY: invalid read @%"HWADDR_PRIx, offset); + return -1; +} + +static const MemoryRegionOps pnv_xive2_ic_notify_ops = { + .read = pnv_xive2_ic_notify_read, + .write = pnv_xive2_ic_notify_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +static uint64_t pnv_xive2_ic_lsi_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + xive2_error(xive, "LSI: invalid read @%"HWADDR_PRIx, offset); + return -1; +} + +static void pnv_xive2_ic_lsi_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + xive2_error(xive, "LSI: invalid write @%"HWADDR_PRIx, offset); +} + +static const MemoryRegionOps pnv_xive2_ic_lsi_ops = { + .read = pnv_xive2_ic_lsi_read, + .write = pnv_xive2_ic_lsi_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +/* + * Sync MMIO page (write only) + */ +#define PNV_XIVE2_SYNC_IPI 0x000 +#define PNV_XIVE2_SYNC_HW 0x080 +#define PNV_XIVE2_SYNC_NxC 0x100 +#define PNV_XIVE2_SYNC_INT 0x180 +#define PNV_XIVE2_SYNC_OS_ESC 0x200 +#define PNV_XIVE2_SYNC_POOL_ESC 0x280 +#define PNV_XIVE2_SYNC_HARD_ESC 0x300 + +static uint64_t pnv_xive2_ic_sync_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + /* loads are invalid */ + xive2_error(xive, "SYNC: invalid read @%"HWADDR_PRIx, offset); + return -1; +} + +static void pnv_xive2_ic_sync_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + switch (offset) { + case PNV_XIVE2_SYNC_IPI: + case PNV_XIVE2_SYNC_HW: + case PNV_XIVE2_SYNC_NxC: + case PNV_XIVE2_SYNC_INT: + case PNV_XIVE2_SYNC_OS_ESC: + case PNV_XIVE2_SYNC_POOL_ESC: + case PNV_XIVE2_SYNC_HARD_ESC: + break; + default: + xive2_error(xive, "SYNC: invalid write @%"HWADDR_PRIx, offset); + } +} + +static const MemoryRegionOps pnv_xive2_ic_sync_ops = { + .read = pnv_xive2_ic_sync_read, + .write = pnv_xive2_ic_sync_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +/* + * When the TM direct pages of the IC controller are accessed, the + * target HW thread is deduced from the page offset. + */ +static XiveTCTX *pnv_xive2_get_indirect_tctx(PnvXive2 *xive, uint32_t pir) +{ + PnvChip *chip = xive->chip; + PowerPCCPU *cpu = NULL; + + cpu = pnv_chip_find_cpu(chip, pir); + if (!cpu) { + xive2_error(xive, "IC: invalid PIR %x for indirect access", pir); + return NULL; + } + + if (!pnv_xive2_is_cpu_enabled(xive, cpu)) { + xive2_error(xive, "IC: CPU %x is not enabled", pir); + } + + return XIVE_TCTX(pnv_cpu_state(cpu)->intc); +} + +static uint64_t pnv_xive2_ic_tm_indirect_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint32_t pir = offset >> xive->ic_shift; + XiveTCTX *tctx = pnv_xive2_get_indirect_tctx(xive, pir); + uint64_t val = -1; + + if (tctx) { + val = xive_tctx_tm_read(NULL, tctx, offset, size); + } + + return val; +} + +static void pnv_xive2_ic_tm_indirect_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + uint32_t pir = offset >> xive->ic_shift; + XiveTCTX *tctx = pnv_xive2_get_indirect_tctx(xive, pir); + + if (tctx) { + xive_tctx_tm_write(NULL, tctx, offset, val, size); + } +} + +static const MemoryRegionOps pnv_xive2_ic_tm_indirect_ops = { + .read = pnv_xive2_ic_tm_indirect_read, + .write = pnv_xive2_ic_tm_indirect_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +/* + * TIMA ops + */ + +static void pnv_xive2_tm_write(void *opaque, hwaddr offset, + uint64_t value, unsigned size) +{ + PowerPCCPU *cpu = POWERPC_CPU(current_cpu); + PnvXive2 *xive = pnv_xive2_tm_get_xive(cpu); + XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc); + + /* Other TM ops are the same as XIVE1 */ + xive_tctx_tm_write(XIVE_PRESENTER(xive), tctx, offset, value, size); +} + +static uint64_t pnv_xive2_tm_read(void *opaque, hwaddr offset, unsigned size) +{ + PowerPCCPU *cpu = POWERPC_CPU(current_cpu); + PnvXive2 *xive = pnv_xive2_tm_get_xive(cpu); + XiveTCTX *tctx = XIVE_TCTX(pnv_cpu_state(cpu)->intc); + + /* Other TM ops are the same as XIVE1 */ + return xive_tctx_tm_read(XIVE_PRESENTER(xive), tctx, offset, size); +} + +static const MemoryRegionOps pnv_xive2_tm_ops = { + .read = pnv_xive2_tm_read, + .write = pnv_xive2_tm_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 1, + .max_access_size = 8, + }, +}; + +static uint64_t pnv_xive2_nvc_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + xive2_error(xive, "NVC: invalid read @%"HWADDR_PRIx, offset); + return -1; +} + +static void pnv_xive2_nvc_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + xive2_error(xive, "NVC: invalid write @%"HWADDR_PRIx, offset); +} + +static const MemoryRegionOps pnv_xive2_nvc_ops = { + .read = pnv_xive2_nvc_read, + .write = pnv_xive2_nvc_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +static uint64_t pnv_xive2_nvpg_read(void *opaque, hwaddr offset, + unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + xive2_error(xive, "NVPG: invalid read @%"HWADDR_PRIx, offset); + return -1; +} + +static void pnv_xive2_nvpg_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + PnvXive2 *xive = PNV_XIVE2(opaque); + + xive2_error(xive, "NVPG: invalid write @%"HWADDR_PRIx, offset); +} + +static const MemoryRegionOps pnv_xive2_nvpg_ops = { + .read = pnv_xive2_nvpg_read, + .write = pnv_xive2_nvpg_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +/* + * POWER10 default capabilities: 0x2000120076f00000 + */ +#define PNV_XIVE2_CAPABILITIES 0x2000120076f00000 + +/* + * POWER10 default configuration: 0x0030000033000000 + * + * 8bits thread id was dropped for P10 + */ +#define PNV_XIVE2_CONFIGURATION 0x0030000033000000 + +static void pnv_xive2_reset(void *dev) +{ + PnvXive2 *xive2 = PNV_XIVE2(dev); + XiveSource *xsrc = &xive2->ipi_source; + Xive2EndSource *end_xsrc = &xive2->end_source; + + xive2->cq_regs[CQ_XIVE_CAP >> 3] = PNV_XIVE2_CAPABILITIES; + xive2->cq_regs[CQ_XIVE_CFG >> 3] = PNV_XIVE2_CONFIGURATION; + + /* HW hardwires the #Topology of the chip in the block field */ + xive2->cq_regs[CQ_XIVE_CFG >> 3] |= + SETFIELD(CQ_XIVE_CFG_HYP_HARD_BLOCK_ID, 0ull, xive2->chip->chip_id); + + /* Set default page size to 64k */ + xive2->ic_shift = xive2->esb_shift = xive2->end_shift = 16; + xive2->nvc_shift = xive2->nvpg_shift = xive2->tm_shift = 16; + + /* Clear source MMIOs */ + if (memory_region_is_mapped(&xsrc->esb_mmio)) { + memory_region_del_subregion(&xive2->esb_mmio, &xsrc->esb_mmio); + } + + if (memory_region_is_mapped(&end_xsrc->esb_mmio)) { + memory_region_del_subregion(&xive2->end_mmio, &end_xsrc->esb_mmio); + } +} + +/* + * Maximum number of IRQs and ENDs supported by HW. Will be tuned by + * software. + */ +#define PNV_XIVE2_NR_IRQS (PNV10_XIVE2_ESB_SIZE / (1ull << XIVE_ESB_64K_2PAGE)) +#define PNV_XIVE2_NR_ENDS (PNV10_XIVE2_END_SIZE / (1ull << XIVE_ESB_64K_2PAGE)) + +static void pnv_xive2_realize(DeviceState *dev, Error **errp) +{ + PnvXive2 *xive2 = PNV_XIVE2(dev); + PnvXive2Class *pxc = PNV_XIVE2_GET_CLASS(dev); + XiveSource *xsrc = &xive2->ipi_source; + Xive2EndSource *end_xsrc = &xive2->end_source; + Error *local_err = NULL; + int i; + + pxc->parent_realize(dev, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + assert(xive2->chip); + + /* + * The XiveSource and Xive2EndSource objects are realized with the + * maximum allowed HW configuration. The ESB MMIO regions will be + * resized dynamically when the controller is configured by the FW + * to limit accesses to resources not provisioned. + */ + object_property_set_int(OBJECT(xsrc), XIVE_SRC_STORE_EOI, "flags", + &error_fatal); + object_property_set_int(OBJECT(xsrc), PNV_XIVE2_NR_IRQS, "nr-irqs", + &error_fatal); + object_property_set_link(OBJECT(xsrc), OBJECT(xive2), "xive", + &error_fatal); + object_property_set_bool(OBJECT(xsrc), true, "realized", &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + object_property_set_int(OBJECT(end_xsrc), PNV_XIVE2_NR_ENDS, "nr-ends", + &error_fatal); + object_property_set_link(OBJECT(end_xsrc), OBJECT(xive2), "xive", + &error_abort); + object_property_set_bool(OBJECT(end_xsrc), true, "realized", &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + /* XSCOM region, used for initial configuration of the BARs */ + memory_region_init_io(&xive2->xscom_regs, OBJECT(dev), + &pnv_xive2_xscom_ops, xive2, "xscom-xive", + PNV10_XSCOM_XIVE2_SIZE << 3); + + /* Interrupt controller MMIO regions */ + xive2->ic_shift = 16; + memory_region_init(&xive2->ic_mmio, OBJECT(dev), "xive-ic", + PNV10_XIVE2_IC_SIZE); + + for (i = 0; i < ARRAY_SIZE(xive2->ic_mmios); i++) { + memory_region_init_io(&xive2->ic_mmios[i], OBJECT(dev), + pnv_xive2_ic_regions[i].ops, xive2, + pnv_xive2_ic_regions[i].name, + pnv_xive2_ic_regions[i].pgsize << xive2->ic_shift); + } + + /* + * VC MMIO regions. + */ + xive2->esb_shift = 16; + xive2->end_shift = 16; + memory_region_init(&xive2->esb_mmio, OBJECT(xive2), "xive-esb", + PNV10_XIVE2_ESB_SIZE); + memory_region_init(&xive2->end_mmio, OBJECT(xive2), "xive-end", + PNV10_XIVE2_END_SIZE); + + /* Presenter Controller MMIO region (not modeled) */ + xive2->nvc_shift = 16; + xive2->nvpg_shift = 16; + memory_region_init_io(&xive2->nvc_mmio, OBJECT(dev), + &pnv_xive2_nvc_ops, xive2, + "xive-nvc", PNV10_XIVE2_NVC_SIZE); + + memory_region_init_io(&xive2->nvpg_mmio, OBJECT(dev), + &pnv_xive2_nvpg_ops, xive2, + "xive-nvpg", PNV10_XIVE2_NVPG_SIZE); + + /* Thread Interrupt Management Area (Direct) */ + xive2->tm_shift = 16; + memory_region_init_io(&xive2->tm_mmio, OBJECT(dev), &pnv_xive2_tm_ops, + xive2, "xive-tima", PNV10_XIVE2_TM_SIZE); + + qemu_register_reset(pnv_xive2_reset, dev); +} + +static Property pnv_xive2_properties[] = { + DEFINE_PROP_UINT64("ic-bar", PnvXive2, ic_base, 0), + DEFINE_PROP_UINT64("esb-bar", PnvXive2, esb_base, 0), + DEFINE_PROP_UINT64("end-bar", PnvXive2, end_base, 0), + DEFINE_PROP_UINT64("nvc-bar", PnvXive2, nvc_base, 0), + DEFINE_PROP_UINT64("nvpg-bar", PnvXive2, nvpg_base, 0), + DEFINE_PROP_UINT64("tm-bar", PnvXive2, tm_base, 0), + DEFINE_PROP_LINK("chip", PnvXive2, chip, TYPE_PNV_CHIP, PnvChip *), + DEFINE_PROP_END_OF_LIST(), +}; + +static void pnv_xive2_instance_init(Object *obj) +{ + PnvXive2 *xive = PNV_XIVE2(obj); + + object_initialize_child(obj, "ipi_source", &xive->ipi_source, + sizeof(xive->ipi_source), TYPE_XIVE_SOURCE, + &error_abort, NULL); + object_initialize_child(obj, "end_source", &xive->end_source, + sizeof(xive->end_source), TYPE_XIVE2_END_SOURCE, + &error_abort, NULL); +} + +static int pnv_xive2_dt_xscom(PnvXScomInterface *dev, void *fdt, + int xscom_offset) +{ + const char compat_p10[] = "ibm,power10-xive-x"; + char *name; + int offset; + uint32_t reg[] = { + cpu_to_be32(PNV10_XSCOM_XIVE2_BASE), + cpu_to_be32(PNV10_XSCOM_XIVE2_SIZE) + }; + + name = g_strdup_printf("xive@%x", PNV10_XSCOM_XIVE2_BASE); + offset = fdt_add_subnode(fdt, xscom_offset, name); + _FDT(offset); + g_free(name); + + _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg)))); + _FDT(fdt_setprop(fdt, offset, "compatible", compat_p10, + sizeof(compat_p10))); + return 0; +} + +static void pnv_xive2_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PnvXScomInterfaceClass *xdc = PNV_XSCOM_INTERFACE_CLASS(klass); + Xive2RouterClass *xrc = XIVE2_ROUTER_CLASS(klass); + XiveNotifierClass *xnc = XIVE_NOTIFIER_CLASS(klass); + XivePresenterClass *xpc = XIVE_PRESENTER_CLASS(klass); + PnvXive2Class *pxc = PNV_XIVE2_CLASS(klass); + + xdc->dt_xscom = pnv_xive2_dt_xscom; + + dc->desc = "PowerNV XIVE2 Interrupt Controller (POWER10)"; + device_class_set_parent_realize(dc, pnv_xive2_realize, + &pxc->parent_realize); + device_class_set_props(dc, pnv_xive2_properties); + + xrc->get_eas = pnv_xive2_get_eas; + xrc->get_end = pnv_xive2_get_end; + xrc->write_end = pnv_xive2_write_end; + xrc->get_nvp = pnv_xive2_get_nvp; + xrc->write_nvp = pnv_xive2_write_nvp; + xrc->get_block_id = pnv_xive2_get_block_id; + + xnc->notify = pnv_xive2_notify; + + xpc->match_nvt = pnv_xive2_match_nvt; +}; + +static const TypeInfo pnv_xive2_info = { + .name = TYPE_PNV_XIVE2, + .parent = TYPE_XIVE2_ROUTER, + .instance_init = pnv_xive2_instance_init, + .instance_size = sizeof(PnvXive2), + .class_init = pnv_xive2_class_init, + .class_size = sizeof(PnvXive2Class), + .interfaces = (InterfaceInfo[]) { + { TYPE_PNV_XSCOM_INTERFACE }, + { } + } +}; + +static void pnv_xive2_register_types(void) +{ + type_register_static(&pnv_xive2_info); +} + +type_init(pnv_xive2_register_types) + +static void xive2_nvp_pic_print_info(Xive2Nvp *nvp, uint32_t nvp_idx, + Monitor *mon) +{ + uint8_t eq_blk = xive_get_field32(NVP2_W5_VP_END_BLOCK, nvp->w5); + uint32_t eq_idx = xive_get_field32(NVP2_W5_VP_END_INDEX, nvp->w5); + + if (!xive2_nvp_is_valid(nvp)) { + return; + } + + monitor_printf(mon, " %08x end:%02x/%04x CPPR:%02x IPB:%02x\n", + nvp_idx, eq_blk, eq_idx, + xive_get_field32(NVP2_W2_CPPR, nvp->w2), + xive_get_field32(NVP2_W2_IPB, nvp->w2)); +} + +/* + * If the table is direct, we can compute the number of PQ entries + * provisioned by FW. + */ +static uint32_t pnv_xive2_nr_esbs(PnvXive2 *xive) +{ + uint8_t blk = pnv_xive2_block_id(xive); + uint64_t vsd = xive->vsds[VST_ESB][blk]; + uint64_t vst_tsize = 1ull << (GETFIELD(VSD_TSIZE, vsd) + 12); + + return VSD_INDIRECT & vsd ? 0 : vst_tsize * SBE_PER_BYTE; +} + +/* + * Compute the number of entries per indirect subpage. + */ +static uint64_t pnv_xive2_vst_per_subpage(PnvXive2 *xive, uint32_t type) +{ + uint8_t blk = pnv_xive2_block_id(xive); + uint64_t vsd = xive->vsds[type][blk]; + const XiveVstInfo *info = &vst_infos[type]; + uint64_t vsd_addr; + uint32_t page_shift; + + /* For direct tables, fake a valid value */ + if (!(VSD_INDIRECT & vsd)) { + return 1; + } + + /* Get the page size of the indirect table. */ + vsd_addr = vsd & VSD_ADDRESS_MASK; + vsd = ldq_be_dma(&address_space_memory, vsd_addr); + + if (!(vsd & VSD_ADDRESS_MASK)) { +#ifdef XIVE2_DEBUG + xive2_error(xive, "VST: invalid %s entry!?", info->name); +#endif + return 0; + } + + page_shift = GETFIELD(VSD_TSIZE, vsd) + 12; + + if (!pnv_xive2_vst_page_size_allowed(page_shift)) { + xive2_error(xive, "VST: invalid %s page shift %d", info->name, + page_shift); + return 0; + } + + return (1ull << page_shift) / info->size; +} + +void pnv_xive2_pic_print_info(PnvXive2 *xive, Monitor *mon) +{ + Xive2Router *xrtr = XIVE2_ROUTER(xive); + uint8_t blk = pnv_xive2_block_id(xive); + uint8_t chip_id = xive->chip->chip_id; + uint32_t srcno0 = XIVE_EAS(blk, 0); + uint32_t nr_esbs = pnv_xive2_nr_esbs(xive); + Xive2Eas eas; + Xive2End end; + Xive2Nvp nvp; + int i; + uint64_t xive_nvp_per_subpage; + + monitor_printf(mon, "XIVE[%x] Source %08x .. %08x\n", blk, srcno0, + srcno0 + nr_esbs - 1); + xive_source_pic_print_info(&xive->ipi_source, srcno0, mon); + + monitor_printf(mon, "XIVE[%x] EAT %08x .. %08x\n", blk, srcno0, + srcno0 + nr_esbs - 1); + for (i = 0; i < nr_esbs; i++) { + if (xive2_router_get_eas(xrtr, blk, i, &eas)) { + break; + } + if (!xive2_eas_is_masked(&eas)) { + xive2_eas_pic_print_info(&eas, i, mon); + } + } + + monitor_printf(mon, "XIVE[%x] #%d END Escalation EAT\n", chip_id, blk); + i = 0; + while (!xive2_router_get_end(xrtr, blk, i, &end)) { + xive2_end_eas_pic_print_info(&end, i++, mon); + } + + monitor_printf(mon, "XIVE[%x] #%d ENDT\n", chip_id, blk); + i = 0; + while (!xive2_router_get_end(xrtr, blk, i, &end)) { + xive2_end_pic_print_info(&end, i++, mon); + } + + monitor_printf(mon, "XIVE[%x] #%d NVPT %08x .. %08x\n", chip_id, blk, + 0, XIVE2_NVP_COUNT - 1); + xive_nvp_per_subpage = pnv_xive2_vst_per_subpage(xive, VST_NVP); + for (i = 0; i < XIVE2_NVP_COUNT; i += xive_nvp_per_subpage) { + while (!xive2_router_get_nvp(xrtr, blk, i, &nvp)) { + xive2_nvp_pic_print_info(&nvp, i++, mon); + } + } +} diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 1b4748ce6dc3..73c40ce3209f 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -706,6 +706,7 @@ static void pnv_chip_power10_pic_print_info(PnvChip *chip, Monitor *mon) { Pnv10Chip *chip10 = PNV10_CHIP(chip); + pnv_xive2_pic_print_info(&chip10->xive, mon); pnv_psi_pic_print_info(&chip10->psi, mon); } @@ -997,27 +998,45 @@ static void pnv_chip_power9_intc_print_info(PnvChip *chip, PowerPCCPU *cpu, static void pnv_chip_power10_intc_create(PnvChip *chip, PowerPCCPU *cpu, Error **errp) { + Pnv10Chip *chip10 = PNV10_CHIP(chip); + Error *local_err = NULL; + Object *obj; PnvCPUState *pnv_cpu = pnv_cpu_state(cpu); - /* Will be defined when the interrupt controller is */ - pnv_cpu->intc = NULL; + /* + * The core creates its interrupt presenter but the XIVE2 interrupt + * controller object is initialized afterwards. Hopefully, it's + * only used at runtime. + */ + obj = xive_tctx_create(OBJECT(cpu), XIVE_PRESENTER(&chip10->xive), + &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + pnv_cpu->intc = obj; } static void pnv_chip_power10_intc_reset(PnvChip *chip, PowerPCCPU *cpu) { - ; + PnvCPUState *pnv_cpu = pnv_cpu_state(cpu); + + xive_tctx_reset(XIVE_TCTX(pnv_cpu->intc)); } static void pnv_chip_power10_intc_destroy(PnvChip *chip, PowerPCCPU *cpu) { PnvCPUState *pnv_cpu = pnv_cpu_state(cpu); + xive_tctx_destroy(XIVE_TCTX(pnv_cpu->intc)); pnv_cpu->intc = NULL; } static void pnv_chip_power10_intc_print_info(PnvChip *chip, PowerPCCPU *cpu, Monitor *mon) { + xive_tctx_pic_print_info(XIVE_TCTX(pnv_cpu_state(cpu)->intc), mon); } /* @@ -1590,6 +1609,10 @@ static void pnv_chip_power10_instance_init(Object *obj) { Pnv10Chip *chip10 = PNV10_CHIP(obj); + object_initialize_child(obj, "xive", &chip10->xive, sizeof(chip10->xive), + TYPE_PNV_XIVE2, &error_abort, NULL); + object_property_add_alias(obj, "xive-fabric", OBJECT(&chip10->xive), + "xive-fabric", &error_abort); object_initialize_child(obj, "psi", &chip10->psi, sizeof(chip10->psi), TYPE_PNV10_PSI, &error_abort, NULL); object_initialize_child(obj, "lpc", &chip10->lpc, sizeof(chip10->lpc), @@ -1617,6 +1640,30 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp) return; } + /* XIVE2 interrupt controller (POWER10) */ + object_property_set_int(OBJECT(&chip10->xive), PNV10_XIVE2_IC_BASE(chip), + "ic-bar", &error_fatal); + object_property_set_int(OBJECT(&chip10->xive), PNV10_XIVE2_ESB_BASE(chip), + "esb-bar", &error_fatal); + object_property_set_int(OBJECT(&chip10->xive), PNV10_XIVE2_END_BASE(chip), + "end-bar", &error_fatal); + object_property_set_int(OBJECT(&chip10->xive), PNV10_XIVE2_NVPG_BASE(chip), + "nvpg-bar", &error_fatal); + object_property_set_int(OBJECT(&chip10->xive), PNV10_XIVE2_NVC_BASE(chip), + "nvc-bar", &error_fatal); + object_property_set_int(OBJECT(&chip10->xive), PNV10_XIVE2_TM_BASE(chip), + "tm-bar", &error_fatal); + object_property_set_link(OBJECT(&chip10->xive), OBJECT(chip), "chip", + &error_abort); + object_property_set_bool(OBJECT(&chip10->xive), true, "realized", + &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + pnv_xscom_add_subregion(chip, PNV10_XSCOM_XIVE2_BASE, + &chip10->xive.xscom_regs); + /* Processor Service Interface (PSI) Host Bridge */ object_property_set_int(OBJECT(&chip10->psi), PNV10_PSIHB_BASE(chip), "bar", &error_fatal); @@ -1913,6 +1960,35 @@ static int pnv_match_nvt(XiveFabric *xfb, uint8_t format, return total_count; } +static int pnv10_xive_match_nvt(XiveFabric *xfb, uint8_t format, + uint8_t nvt_blk, uint32_t nvt_idx, + bool cam_ignore, uint8_t priority, + uint32_t logic_serv, + XiveTCTXMatch *match) +{ + PnvMachineState *pnv = PNV_MACHINE(xfb); + int total_count = 0; + int i; + + for (i = 0; i < pnv->num_chips; i++) { + Pnv10Chip *chip10 = PNV10_CHIP(pnv->chips[i]); + XivePresenter *xptr = XIVE_PRESENTER(&chip10->xive); + XivePresenterClass *xpc = XIVE_PRESENTER_GET_CLASS(xptr); + int count; + + count = xpc->match_nvt(xptr, format, nvt_blk, nvt_idx, cam_ignore, + priority, logic_serv, match); + + if (count < 0) { + return count; + } + + total_count += count; + } + + return total_count; +} + static void pnv_machine_power8_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); @@ -1953,6 +2029,7 @@ static void pnv_machine_power10_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); PnvMachineClass *pmc = PNV_MACHINE_CLASS(oc); + XiveFabricClass *xfc = XIVE_FABRIC_CLASS(oc); static const char compat[] = "qemu,powernv10\0ibm,powernv"; mc->desc = "IBM PowerNV (Non-Virtualized) POWER10"; @@ -1961,6 +2038,8 @@ static void pnv_machine_power10_class_init(ObjectClass *oc, void *data) pmc->compat = compat; pmc->compat_size = sizeof(compat); pmc->dt_power_mgt = pnv_dt_power_mgt; + + xfc->match_nvt = pnv10_xive_match_nvt; } static bool pnv_machine_get_hb(Object *obj, Error **errp) @@ -2074,6 +2153,10 @@ static const TypeInfo types[] = { .name = MACHINE_TYPE_NAME("powernv10"), .parent = TYPE_PNV_MACHINE, .class_init = pnv_machine_power10_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_XIVE_FABRIC }, + { }, + }, }, { .name = MACHINE_TYPE_NAME("powernv9"), diff --git a/hw/intc/Makefile.objs b/hw/intc/Makefile.objs index 3af575aeb87d..b879a6eb3c3a 100644 --- a/hw/intc/Makefile.objs +++ b/hw/intc/Makefile.objs @@ -40,7 +40,7 @@ obj-$(CONFIG_XICS_KVM) += xics_kvm.o obj-$(CONFIG_XIVE) += xive.o xive2.o obj-$(CONFIG_XIVE_SPAPR) += spapr_xive.o obj-$(CONFIG_XIVE_KVM) += spapr_xive_kvm.o -obj-$(CONFIG_POWERNV) += xics_pnv.o pnv_xive.o +obj-$(CONFIG_POWERNV) += xics_pnv.o pnv_xive.o pnv_xive2.o obj-$(CONFIG_ALLWINNER_A10_PIC) += allwinner-a10-pic.o obj-$(CONFIG_S390_FLIC) += s390_flic.o obj-$(CONFIG_S390_FLIC_KVM) += s390_flic_kvm.o