From: Hector Martin <marcan@marcan.st>
To: linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>,
Arnd Bergmann <arnd@kernel.org>, Rob Herring <robh@kernel.org>,
Tony Lindgren <tony@atomide.com>, Marc Zyngier <maz@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Hector Martin <marcan@marcan.st>,
linux-kernel@vger.kernel.org,
Krzysztof Kozlowski <krzk@kernel.org>,
devicetree@vger.kernel.org, Alexander Graf <graf@amazon.com>,
Olof Johansson <olof@lixom.net>,
Mohamed Mediouni <mohamed.mediouni@caramail.com>,
Stan Skowronek <stan@corellium.com>,
Will Deacon <will@kernel.org>,
Mark Kettenis <mark.kettenis@xs4all.nl>
Subject: [PATCH v2 13/25] arm64: Add Apple vendor-specific system registers
Date: Mon, 15 Feb 2021 21:17:01 +0900 [thread overview]
Message-ID: <20210215121713.57687-14-marcan@marcan.st> (raw)
In-Reply-To: <20210215121713.57687-1-marcan@marcan.st>
Apple ARM64 SoCs have a ton of vendor-specific registers we're going to
have to deal with, and those don't really belong in sysreg.h with all
the architectural registers. Make a new home for them, and add some
registers which are useful for early bring-up.
Signed-off-by: Hector Martin <marcan@marcan.st>
---
MAINTAINERS | 1 +
arch/arm64/include/asm/sysreg_apple.h | 69 +++++++++++++++++++++++++++
2 files changed, 70 insertions(+)
create mode 100644 arch/arm64/include/asm/sysreg_apple.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 4eba6ab16bd9..1431fd59025f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1634,6 +1634,7 @@ B: https://github.com/AsahiLinux/linux/issues
C: irc://chat.freenode.net/asahi-dev
T: git https://github.com/AsahiLinux/linux.git
F: Documentation/devicetree/bindings/arm/apple.yaml
+F: arch/arm64/include/asm/sysreg_apple.h
ARM/ARTPEC MACHINE SUPPORT
M: Jesper Nilsson <jesper.nilsson@axis.com>
diff --git a/arch/arm64/include/asm/sysreg_apple.h b/arch/arm64/include/asm/sysreg_apple.h
new file mode 100644
index 000000000000..2068a3436a70
--- /dev/null
+++ b/arch/arm64/include/asm/sysreg_apple.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Apple SoC vendor-defined system register definitions
+ *
+ * Copyright The Asahi Linux Contributors
+
+ * This file contains only well-understood registers that are useful to
+ * Linux. If you are looking for things to add here, you should visit:
+ *
+ * https://github.com/AsahiLinux/docs/wiki/HW:ARM-System-Registers
+ */
+
+#ifndef __ASM_SYSREG_APPLE_H
+#define __ASM_SYSREG_APPLE_H
+
+#include <asm/sysreg.h>
+#include <linux/bits.h>
+#include <linux/bitfield.h>
+
+/*
+ * Keep these registers in encoding order, except for register arrays;
+ * those should be listed in array order starting from the position of
+ * the encoding of the first register.
+ */
+
+#define SYS_APL_PMCR0 sys_reg(3, 1, 15, 0, 0)
+#define PMCR0_IMODE GENMASK(10, 8)
+#define PMCR0_IMODE_OFF 0
+#define PMCR0_IMODE_PMI 1
+#define PMCR0_IMODE_AIC 2
+#define PMCR0_IMODE_HALT 3
+#define PMCR0_IMODE_FIQ 4
+#define PMCR0_IACT BIT(11)
+
+/* IPI request registers */
+#define SYS_APL_IPI_RR_LOCAL sys_reg(3, 5, 15, 0, 0)
+#define SYS_APL_IPI_RR_GLOBAL sys_reg(3, 5, 15, 0, 1)
+#define IPI_RR_CPU GENMASK(7, 0)
+/* Cluster only used for the GLOBAL register */
+#define IPI_RR_CLUSTER GENMASK(23, 16)
+#define IPI_RR_TYPE GENMASK(29, 28)
+#define IPI_RR_IMMEDIATE 0
+#define IPI_RR_RETRACT 1
+#define IPI_RR_DEFERRED 2
+#define IPI_RR_NOWAKE 3
+
+/* IPI status register */
+#define SYS_APL_IPI_SR sys_reg(3, 5, 15, 1, 1)
+#define IPI_SR_PENDING BIT(0)
+
+/* Guest timer FIQ mask register */
+#define SYS_APL_VM_TMR_MASK sys_reg(3, 5, 15, 1, 3)
+#define VM_TMR_MASK_V BIT(0)
+#define VM_TMR_MASK_P BIT(1)
+
+/* Deferred IPI countdown register */
+#define SYS_APL_IPI_CR sys_reg(3, 5, 15, 3, 1)
+
+#define SYS_APL_UPMCR0 sys_reg(3, 7, 15, 0, 4)
+#define UPMCR0_IMODE GENMASK(18, 16)
+#define UPMCR0_IMODE_OFF 0
+#define UPMCR0_IMODE_AIC 2
+#define UPMCR0_IMODE_HALT 3
+#define UPMCR0_IMODE_FIQ 4
+
+#define SYS_APL_UPMSR sys_reg(3, 7, 15, 6, 4)
+#define UPMSR_IACT BIT(0)
+
+#endif /* __ASM_SYSREG_APPLE_H */
--
2.30.0
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next prev parent reply other threads:[~2021-02-15 12:22 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-15 12:16 [PATCH v2 00/25] Apple M1 SoC platform bring-up Hector Martin
2021-02-15 12:16 ` [PATCH v2 01/25] dt-bindings: vendor-prefixes: Add apple prefix Hector Martin
2021-02-15 17:44 ` Krzysztof Kozlowski
2021-03-02 8:21 ` Linus Walleij
2021-02-15 12:16 ` [PATCH v2 02/25] dt-bindings: arm: apple: Add bindings for Apple ARM platforms Hector Martin
2021-02-15 17:48 ` Krzysztof Kozlowski
2021-02-16 14:30 ` Hector Martin
2021-02-15 12:16 ` [PATCH v2 03/25] dt-bindings: arm: cpus: Add apple, firestorm & icestorm compatibles Hector Martin
2021-02-15 12:16 ` [PATCH v2 04/25] arm64: cputype: Add CPU implementor & types for the Apple M1 cores Hector Martin
2021-02-15 12:16 ` [PATCH v2 05/25] dt-bindings: timer: arm, arch_timer: Add interrupt-names support Hector Martin
2021-02-15 12:16 ` [PATCH v2 06/25] arm64: arch_timer: implement support for interrupt-names Hector Martin
2021-02-15 13:28 ` Marc Zyngier
2021-02-15 15:13 ` Hector Martin
2021-02-15 18:23 ` Tony Lindgren
2021-02-16 14:33 ` Hector Martin
2021-02-15 12:16 ` [PATCH v2 07/25] arm64: cpufeature: Add a feature for FIQ support Hector Martin
2021-02-15 12:16 ` [PATCH v2 08/25] arm64: Always keep DAIF.[IF] in sync Hector Martin
2021-02-17 12:22 ` Mark Rutland
2021-02-18 12:51 ` Hector Martin
2021-02-18 14:22 ` Mark Rutland
2021-02-18 14:42 ` Hector Martin
2021-02-18 15:26 ` Mark Rutland
2021-02-15 12:16 ` [PATCH v2 09/25] arm64: entry: Map the FIQ vector to IRQ on NEEDS_FIQ platforms Hector Martin
2021-02-17 11:49 ` Mark Rutland
2021-02-17 14:38 ` Marc Zyngier
2021-02-15 12:16 ` [PATCH v2 10/25] asm-generic/io.h: Add a non-posted variant of ioremap() Hector Martin
2021-02-15 15:27 ` kernel test robot
2021-02-15 16:47 ` Hector Martin
2021-02-16 10:53 ` Christoph Hellwig
2021-02-18 13:08 ` Hector Martin
2021-02-15 12:16 ` [PATCH v2 11/25] arm64: Implement ioremap_np() to map MMIO as nGnRnE Hector Martin
2021-02-15 12:17 ` [PATCH v2 12/25] of/address: Add infrastructure to declare MMIO as non-posted Hector Martin
2021-02-15 12:17 ` Hector Martin [this message]
2021-02-15 12:17 ` [PATCH v2 14/25] dt-bindings: interrupt-controller: Add DT bindings for apple-aic Hector Martin
2021-02-16 9:41 ` Arnd Bergmann
2021-02-16 11:00 ` Mark Kettenis
2021-02-16 11:21 ` Arnd Bergmann
2021-02-16 11:45 ` Marc Zyngier
2021-03-02 8:47 ` Linus Walleij
2021-02-15 12:17 ` [PATCH v2 15/25] irqchip/apple-aic: Add support for the Apple Interrupt Controller Hector Martin
2021-02-15 18:09 ` Marc Zyngier
2021-02-22 19:35 ` Hector Martin
2021-02-23 17:37 ` Marc Zyngier
2021-02-15 12:17 ` [PATCH v2 16/25] arm64: Kconfig: Introduce CONFIG_ARCH_APPLE Hector Martin
2021-02-15 12:17 ` [PATCH v2 17/25] tty: serial: samsung_tty: Separate S3C64XX ops structure Hector Martin
2021-02-15 18:06 ` Krzysztof Kozlowski
2021-02-18 13:24 ` Hector Martin
2021-02-15 12:17 ` [PATCH v2 18/25] tty: serial: samsung_tty: add s3c24xx_port_type Hector Martin
2021-02-15 18:26 ` Krzysztof Kozlowski
2021-02-18 13:37 ` Hector Martin
2021-02-15 12:17 ` [PATCH v2 19/25] tty: serial: samsung_tty: IRQ rework Hector Martin
2021-02-15 18:40 ` Krzysztof Kozlowski
2021-02-18 13:53 ` Hector Martin
2021-02-20 19:11 ` Krzysztof Kozlowski
2021-02-21 13:43 ` Hector Martin
2021-02-15 12:17 ` [PATCH v2 20/25] tty: serial: samsung_tty: Use devm_ioremap_resource Hector Martin
2021-02-15 18:51 ` Krzysztof Kozlowski
2021-02-18 14:01 ` Hector Martin
2021-02-20 19:13 ` Krzysztof Kozlowski
2021-02-20 19:17 ` Marc Zyngier
2021-02-21 14:38 ` Hector Martin
2021-02-21 14:59 ` Marc Zyngier
2021-02-21 17:09 ` Hector Martin
2021-02-15 12:17 ` [PATCH v2 21/25] dt-bindings: serial: samsung: Add apple, s5l-uart compatible Hector Martin
2021-02-15 18:53 ` [PATCH v2 21/25] dt-bindings: serial: samsung: Add apple,s5l-uart compatible Krzysztof Kozlowski
2021-03-02 8:31 ` [PATCH v2 21/25] dt-bindings: serial: samsung: Add apple, s5l-uart compatible Linus Walleij
2021-02-15 12:17 ` [PATCH v2 22/25] tty: serial: samsung_tty: Add support for Apple UARTs Hector Martin
2021-02-15 19:13 ` Krzysztof Kozlowski
2021-02-18 14:16 ` Hector Martin
2021-02-15 12:17 ` [PATCH v2 23/25] tty: serial: samsung_tty: Add earlycon " Hector Martin
2021-02-15 19:17 ` Krzysztof Kozlowski
2021-02-16 10:18 ` Arnd Bergmann
2021-02-16 10:20 ` Krzysztof Kozlowski
2021-02-16 10:29 ` Arnd Bergmann
2021-02-16 10:50 ` Hector Martin
2021-02-15 12:17 ` [PATCH v2 24/25] dt-bindings: display: Add apple,simple-framebuffer Hector Martin
2021-02-15 12:17 ` [PATCH v2 25/25] arm64: apple: Add initial Mac Mini 2020 (M1) devicetree Hector Martin
2021-02-15 19:29 ` Krzysztof Kozlowski
2021-02-15 21:00 ` Randy Dunlap
2021-02-16 7:31 ` Krzysztof Kozlowski
2021-02-21 14:43 ` Hector Martin
2021-02-21 15:32 ` Krzysztof Kozlowski
2021-02-15 12:57 ` [PATCH v2 00/25] Apple M1 SoC platform bring-up Arnd Bergmann
2021-02-15 13:22 ` gregkh
2021-02-15 15:57 ` Hector Martin
2021-02-15 16:12 ` gregkh
2021-02-15 16:54 ` Hector Martin
2021-02-15 17:43 ` Krzysztof Kozlowski
2021-02-15 19:11 ` Marc Zyngier
[not found] ` <CAHp75Vd2ObiUJFn-kVWBx+E30my9zXVX5iUtsyRb_c4FcZEDOA@mail.gmail.com>
2021-02-23 9:11 ` Hector Martin
2021-02-18 14:36 ` Mark Rutland
2021-02-21 15:20 ` Hector Martin
2021-02-24 15:55 ` Hector Martin
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