From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32E70C433FE for ; Mon, 21 Nov 2022 14:46:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231823AbiKUOq3 (ORCPT ); Mon, 21 Nov 2022 09:46:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33802 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231836AbiKUOqN (ORCPT ); Mon, 21 Nov 2022 09:46:13 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 28A6EC8CA9; Mon, 21 Nov 2022 06:40:37 -0800 (PST) Message-ID: <20221121135653.208611233@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1669041568; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc; bh=9fJ4Mb63/Xks6zZDq8ZHkxVKQmV+67DHF6G9VxNNEMw=; b=P3GT4t5Qng4wzeDGck0U3hd0s0dYvQU63G5ARPCPWkQE2ex/u/o70xly4N37+54IR40L01 NwlK2E4M2laTDGpPMA888lXOcUnxIjXqUOynggZsqtK3D132ZbzCyTD5h6BGrqgE9/+LYJ xm+uCjOvCyWmi76eKKyM/RRt/MqXn77GLzm3fZ5MMCb6q7uWITMKK+bv7DBSReyXtDER3A /fYHWKtK4sCaarBPQ+71DAFvy9DHtpNOfLnAcT+4K37ws4cSZ1SRYLNrh1mcxAlYVhas3G 7blYOTNQcnhM96YEj8l3VnssCDSXB4DOVsylFHOMmHAn/fBfuuARCJ17KXYCSQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1669041568; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc; bh=9fJ4Mb63/Xks6zZDq8ZHkxVKQmV+67DHF6G9VxNNEMw=; b=vAUxo5Ousu1yuMqQq339jI3qmjB2P0X+PepWYfo+0LgUTo+RUdYIvL43TcqyqQyRqBmZ3S 5wCkan+Z3OWMWaBA== From: Thomas Gleixner To: LKML Cc: Will Deacon , linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Marc Zyngier , Greg Kroah-Hartman , Jason Gunthorpe , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Ammar Faizi , Robin Murphy , Lorenzo Pieralisi , Nishanth Menon , Tero Kristo , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vinod Koul , Sinan Kaya , Andy Gross , Bjorn Andersson , Mark Rutland , Shameerali Kolothum Thodi , Zenghui Yu , Shawn Guo , Sascha Hauer , Fabio Estevam Subject: [patch V2 00/40] genirq, irqchip: Convert ARM MSI handling to per device MSI domains Date: Mon, 21 Nov 2022 15:39:28 +0100 (CET) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org This builds on top of the per device MSI work which can be found here: https://lore.kernel.org/all/20221121083657.157152924@linutronix.de and is available from git: git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git devmsi-v2-part3 This series converts the ARM MSI handling, especially the platform MSI mechanics, to use per device MSI domains instead of the weird indirection through platform MSI domains. This also takes a different and less convoluted approach to the 'wire to MSI' bridges by providing special MSI allocation/free functions which are invoked from irq_create_fwspec_mapping() and irq_dispose_mapping() which avoids the extra entry point msi_domain_populate_irqs() and its layering violations. The series has been tested on various systems (Ampere, Hisilicon HIP05, ThunderX2, MVEBU MCBIN) but there is no full coverage yet. Thanks to Marc, Mark and Robin for running this on their machines and aiding with decoding the initial wreckage. Special thanks go to Marc for patiently guiding me through the insanity of OF/ACPI related to this. The series is also available from git: git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git devmsi-v2-arm The work was done to validate that the design decisions for per device MSI domains and the related data structures are up to the task to handle the ARM oddities. The design held up, it was just necessary to extend some of the data structures to handle the ARM specifics in a sane way, but there was no fundamental shortcoming. Thanks, tglx --- b/drivers/base/platform-msi.c | 354 +++----------------------- b/drivers/dma/mv_xor_v2.c | 8 b/drivers/dma/qcom/hidma.c | 6 b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 5 b/drivers/irqchip/Kconfig | 8 b/drivers/irqchip/Makefile | 4 b/drivers/irqchip/irq-gic-common.h | 3 b/drivers/irqchip/irq-gic-msi-lib.c | 136 +++++++++ b/drivers/irqchip/irq-gic-msi-lib.h | 27 + b/drivers/irqchip/irq-gic-v2m.c | 93 ++---- b/drivers/irqchip/irq-gic-v3-its-msi-parent.c | 207 +++++++++++++++ b/drivers/irqchip/irq-gic-v3-its.c | 4 b/drivers/irqchip/irq-gic-v3-mbi.c | 137 ++-------- b/drivers/irqchip/irq-gic-v3.c | 6 b/drivers/irqchip/irq-imx-mu-msi.c | 53 +-- b/drivers/irqchip/irq-mbigen.c | 98 ++----- b/drivers/irqchip/irq-mvebu-gicp.c | 44 +-- b/drivers/irqchip/irq-mvebu-icu.c | 278 ++++++++------------ b/drivers/irqchip/irq-mvebu-odmi.c | 39 +- b/drivers/irqchip/irq-mvebu-sei.c | 52 +-- b/drivers/irqchip/irq-ti-sci-inta.c | 2 b/drivers/mailbox/bcm-flexrm-mailbox.c | 8 b/drivers/pci/msi/irqdomain.c | 30 ++ b/drivers/perf/arm_smmuv3_pmu.c | 4 b/include/linux/acpi_iort.h | 4 b/include/linux/irqdomain.h | 17 + b/include/linux/irqdomain_defs.h | 2 b/include/linux/msi.h | 81 +---- b/kernel/irq/irqdomain.c | 26 + b/kernel/irq/msi.c | 253 ++++++++++++------ drivers/irqchip/irq-gic-v3-its-pci-msi.c | 202 -------------- drivers/irqchip/irq-gic-v3-its-platform-msi.c | 163 ----------- 32 files changed, 1021 insertions(+), 1333 deletions(-)