[RFC PATCH v2 12/31] kvx: Add other common headers

Add some other common headers for basic kvx support. Co-developed-by: Clement Leger <clement(a)clement-leger.fr&gt; Signed-off-by: Clement Leger <clement(a)clement-leger.fr&gt; Co-developed-by: Julian Vetter <jvetter(a)kalray.eu&gt; Signed-off-by: Julian Vetter <jvetter(a)kalray.eu&gt; Co-developed-by: Vincent Chardon <vincent.chardon(a)elsys-design.com&gt; Signed-off-by: Vincent Chardon <vincent.chardon(a)elsys-design.com&gt; Co-developed-by: Yann Sionneau <ysionneau(a)kalray.eu&gt; Signed-off-by: Yann Sionneau <ysionneau(a)kalray.eu&gt; --- Notes: V1 -> V2: no changes arch/kvx/include/asm/asm-prototypes.h | 14 ++++++++ arch/kvx/include/asm/clocksource.h | 17 +++++++++ arch/kvx/include/asm/linkage.h | 13 +++++++ arch/kvx/include/asm/pci.h | 36 +++++++++++++++++++ arch/kvx/include/asm/sections.h | 18 ++++++++++ arch/kvx/include/asm/spinlock.h | 16 +++++++++ arch/kvx/include/asm/spinlock_types.h | 17 +++++++++ arch/kvx/include/asm/stackprotector.h | 47 +++++++++++++++++++++++++ arch/kvx/include/asm/timex.h | 20 +++++++++++ arch/kvx/include/asm/types.h | 12 +++++++ arch/kvx/include/uapi/asm/bitsperlong.h | 14 ++++++++ arch/kvx/include/uapi/asm/byteorder.h | 12 +++++++ tools/include/uapi/asm/bitsperlong.h | 2 ++ 13 files changed, 238 insertions(+) create mode 100644 arch/kvx/include/asm/asm-prototypes.h create mode 100644 arch/kvx/include/asm/clocksource.h create mode 100644 arch/kvx/include/asm/linkage.h create mode 100644 arch/kvx/include/asm/pci.h create mode 100644 arch/kvx/include/asm/sections.h create mode 100644 arch/kvx/include/asm/spinlock.h create mode 100644 arch/kvx/include/asm/spinlock_types.h create mode 100644 arch/kvx/include/asm/stackprotector.h create mode 100644 arch/kvx/include/asm/timex.h create mode 100644 arch/kvx/include/asm/types.h create mode 100644 arch/kvx/include/uapi/asm/bitsperlong.h create mode 100644 arch/kvx/include/uapi/asm/byteorder.h diff --git a/arch/kvx/include/asm/asm-prototypes.h b/arch/kvx/include/asm/asm-prototypes.h new file mode 100644 index 000000000000..af032508e30c --- /dev/null +++ b/arch/kvx/include/asm/asm-prototypes.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Clement Leger + */ + +#ifndef _ASM_KVX_ASM_PROTOTYPES_H +#define _ASM_KVX_ASM_PROTOTYPES_H + +#include <asm/string.h> + +#include <asm-generic/asm-prototypes.h> + +#endif /* _ASM_KVX_ASM_PROTOTYPES_H */ diff --git a/arch/kvx/include/asm/clocksource.h b/arch/kvx/include/asm/clocksource.h new file mode 100644 index 000000000000..4df7c66ffbb5 --- /dev/null +++ b/arch/kvx/include/asm/clocksource.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Yann Sionneau + * Clement Leger + */ + +#ifndef _ASM_KVX_CLOCKSOURCE_H +#define _ASM_KVX_CLOCKSOURCE_H + +#include <linux/compiler.h> + +struct arch_clocksource_data { + void __iomem *regs; +}; + +#endif /* _ASM_KVX_CLOCKSOURCE_H */ diff --git a/arch/kvx/include/asm/linkage.h b/arch/kvx/include/asm/linkage.h new file mode 100644 index 000000000000..84e1cacf67c2 --- /dev/null +++ b/arch/kvx/include/asm/linkage.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Yann Sionneau + */ + +#ifndef __ASM_KVX_LINKAGE_H +#define __ASM_KVX_LINKAGE_H + +#define __ALIGN .align 4 +#define __ALIGN_STR ".align 4" + +#endif diff --git a/arch/kvx/include/asm/pci.h b/arch/kvx/include/asm/pci.h new file mode 100644 index 000000000000..d5bbaaf041b5 --- /dev/null +++ b/arch/kvx/include/asm/pci.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Vincent Chardon + * Clement Leger + */ + +#ifndef __ASM_KVX_PCI_H_ +#define __ASM_KVX_PCI_H_ + +#include <linux/dma-mapping.h> +#include <linux/pci.h> +#include <linux/of_gpio.h> + +#define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 +#define HAVE_PCI_MMAP 1 + +extern int isa_dma_bridge_buggy; + +/* Can be used to override the logic in pci_scan_bus for skipping + * already-configured bus numbers - to be used for buggy BIOSes + * or architectures with incomplete PCI setup by the loader. + */ +#define pcibios_assign_all_busses() 0 + +#define PCIBIOS_MIN_IO 0UL +#define PCIBIOS_MIN_MEM 0UL + +#ifdef CONFIG_PCI_DOMAINS +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return pci_domain_nr(bus); +} +#endif /* CONFIG_PCI_DOMAINS */ + +#endif /* _ASM_KVX_PCI_H */ diff --git a/arch/kvx/include/asm/sections.h b/arch/kvx/include/asm/sections.h new file mode 100644 index 000000000000..0777675ef264 --- /dev/null +++ b/arch/kvx/include/asm/sections.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Clement Leger + */ + +#ifndef _ASM_KVX_SECTIONS_H +#define _ASM_KVX_SECTIONS_H + +#include <asm-generic/sections.h> + +extern char __rodata_start[], __rodata_end[]; +extern char __initdata_start[], __initdata_end[]; +extern char __inittext_start[], __inittext_end[]; +extern char __exception_start[], __exception_end[]; +extern char __rm_firmware_regs_start[]; + +#endif diff --git a/arch/kvx/include/asm/spinlock.h b/arch/kvx/include/asm/spinlock.h new file mode 100644 index 000000000000..ed32fdba1e19 --- /dev/null +++ b/arch/kvx/include/asm/spinlock.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Clement Leger + */ + +#ifndef _ASM_KVX_SPINLOCK_H +#define _ASM_KVX_SPINLOCK_H + +#include <asm/qspinlock.h> +#include <asm/qrwlock.h> + +/* See include/linux/spinlock.h */ +#define smp_mb__after_spinlock() smp_mb() + +#endif diff --git a/arch/kvx/include/asm/spinlock_types.h b/arch/kvx/include/asm/spinlock_types.h new file mode 100644 index 000000000000..929a7df16ef3 --- /dev/null +++ b/arch/kvx/include/asm/spinlock_types.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Clement Leger + */ + +#ifndef _ASM_KVX_SPINLOCK_TYPES_H +#define _ASM_KVX_SPINLOCK_TYPES_H + +#if !defined(__LINUX_SPINLOCK_TYPES_RAW_H) && !defined(__ASM_SPINLOCK_H) +# error "please don't include this file directly" +#endif + +#include <asm-generic/qspinlock_types.h> +#include <asm-generic/qrwlock_types.h> + +#endif /* _ASM_KVX_SPINLOCK_TYPES_H */ diff --git a/arch/kvx/include/asm/stackprotector.h b/arch/kvx/include/asm/stackprotector.h new file mode 100644 index 000000000000..2c190bbb5efc --- /dev/null +++ b/arch/kvx/include/asm/stackprotector.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * derived from arch/mips/include/asm/stackprotector.h + * + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Clement Leger + */ + +/* + * GCC stack protector support. + * + * Stack protector works by putting predefined pattern at the start of + * the stack frame and verifying that it hasn't been overwritten when + * returning from the function. The pattern is called stack canary + * and gcc expects it to be defined by a global variable called + * "__stack_chk_guard" on KVX. This unfortunately means that on SMP + * we cannot have a different canary value per task. + */ + +#ifndef __ASM_STACKPROTECTOR_H +#define __ASM_STACKPROTECTOR_H + +#include <linux/random.h> +#include <linux/version.h> + +extern unsigned long __stack_chk_guard; + +/* + * Initialize the stackprotector canary value. + * + * NOTE: this must only be called from functions that never return, + * and it must always be inlined. + */ +static __always_inline void boot_init_stack_canary(void) +{ + unsigned long canary; + + /* Try to get a semi random initial value. */ + get_random_bytes(&canary, sizeof(canary)); + canary ^= LINUX_VERSION_CODE; + canary &= CANARY_MASK; + + current->stack_canary = canary; + __stack_chk_guard = current->stack_canary; +} + +#endif /* _ASM_STACKPROTECTOR_H */ diff --git a/arch/kvx/include/asm/timex.h b/arch/kvx/include/asm/timex.h new file mode 100644 index 000000000000..51e346faa887 --- /dev/null +++ b/arch/kvx/include/asm/timex.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Clement Leger + */ + +#ifndef _ASM_KVX_TIMEX_H +#define _ASM_KVX_TIMEX_H + +#define get_cycles get_cycles + +#include <asm/sfr.h> +#include <asm-generic/timex.h> + +static inline cycles_t get_cycles(void) +{ + return kvx_sfr_get(PM0); +} + +#endif /* _ASM_KVX_TIMEX_H */ diff --git a/arch/kvx/include/asm/types.h b/arch/kvx/include/asm/types.h new file mode 100644 index 000000000000..1e6c024ee892 --- /dev/null +++ b/arch/kvx/include/asm/types.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Clement Leger + */ + +#ifndef _ASM_KVX_TYPES_H +#define _ASM_KVX_TYPES_H + +#include <asm-generic/int-ll64.h> + +#endif /* _ASM_KVX_TYPES_H */ diff --git a/arch/kvx/include/uapi/asm/bitsperlong.h b/arch/kvx/include/uapi/asm/bitsperlong.h new file mode 100644 index 000000000000..02a91596d567 --- /dev/null +++ b/arch/kvx/include/uapi/asm/bitsperlong.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Clement Leger + */ + +#ifndef _UAPI_ASM_KVX_BITSPERLONG_H +#define _UAPI_ASM_KVX_BITSPERLONG_H + +#define __BITS_PER_LONG 64 + +#include <asm-generic/bitsperlong.h> + +#endif /* _UAPI_ASM_KVX_BITSPERLONG_H */ diff --git a/arch/kvx/include/uapi/asm/byteorder.h b/arch/kvx/include/uapi/asm/byteorder.h new file mode 100644 index 000000000000..b7d827daec73 --- /dev/null +++ b/arch/kvx/include/uapi/asm/byteorder.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ +/* + * Copyright (C) 2017-2023 Kalray Inc. + * Author(s): Clement Leger + */ + +#ifndef _ASM_KVX_BYTEORDER_H +#define _ASM_KVX_BYTEORDER_H + +#include <linux/byteorder/little_endian.h> + +#endif /* _ASM_KVX_BYTEORDER_H */ diff --git a/tools/include/uapi/asm/bitsperlong.h b/tools/include/uapi/asm/bitsperlong.h index da5206517158..40272ffa9c32 100644 --- a/tools/include/uapi/asm/bitsperlong.h +++ b/tools/include/uapi/asm/bitsperlong.h @@ -19,6 +19,8 @@ #include "../../../arch/alpha/include/uapi/asm/bitsperlong.h" #elif defined(__loongarch__) #include "../../../arch/loongarch/include/uapi/asm/bitsperlong.h" +#elif defined(__kvx__) +#include "../../../arch/kvx/include/uapi/asm/bitsperlong.h" #else #include <asm-generic/bitsperlong.h> #endif -- 2.37.2