diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 14 | ||||
| -rw-r--r-- | include/linux/pkeys.h | 13 | ||||
| -rw-r--r-- | include/misc/ocxl.h | 9 | ||||
| -rw-r--r-- | include/uapi/misc/ocxl.h | 14 |
4 files changed, 44 insertions, 6 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 611f19dd471d..0495e6f97fae 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -229,15 +229,21 @@ extern unsigned int kobjsize(const void *objp); #define VM_HIGH_ARCH_4 BIT(VM_HIGH_ARCH_BIT_4) #endif /* CONFIG_ARCH_USES_HIGH_VMA_FLAGS */ -#if defined(CONFIG_X86) -# define VM_PAT VM_ARCH_1 /* PAT reserves whole VMA at once (x86) */ -#if defined (CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) +#ifdef CONFIG_ARCH_HAS_PKEYS # define VM_PKEY_SHIFT VM_HIGH_ARCH_BIT_0 # define VM_PKEY_BIT0 VM_HIGH_ARCH_0 /* A protection key is a 4-bit value */ -# define VM_PKEY_BIT1 VM_HIGH_ARCH_1 +# define VM_PKEY_BIT1 VM_HIGH_ARCH_1 /* on x86 and 5-bit value on ppc64 */ # define VM_PKEY_BIT2 VM_HIGH_ARCH_2 # define VM_PKEY_BIT3 VM_HIGH_ARCH_3 +#ifdef CONFIG_PPC +# define VM_PKEY_BIT4 VM_HIGH_ARCH_4 +#else +# define VM_PKEY_BIT4 0 #endif +#endif /* CONFIG_ARCH_HAS_PKEYS */ + +#if defined(CONFIG_X86) +# define VM_PAT VM_ARCH_1 /* PAT reserves whole VMA at once (x86) */ #elif defined(CONFIG_PPC) # define VM_SAO VM_ARCH_1 /* Strong Access Ordering (powerpc) */ #elif defined(CONFIG_PARISC) diff --git a/include/linux/pkeys.h b/include/linux/pkeys.h index 0794ca78c379..2955ba976048 100644 --- a/include/linux/pkeys.h +++ b/include/linux/pkeys.h @@ -2,8 +2,7 @@ #ifndef _LINUX_PKEYS_H #define _LINUX_PKEYS_H -#include <linux/mm_types.h> -#include <asm/mmu_context.h> +#include <linux/mm.h> #ifdef CONFIG_ARCH_HAS_PKEYS #include <asm/pkeys.h> @@ -14,6 +13,11 @@ #define PKEY_DEDICATED_EXECUTE_ONLY 0 #define ARCH_VM_PKEY_FLAGS 0 +static inline int vma_pkey(struct vm_area_struct *vma) +{ + return 0; +} + static inline bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey) { return (pkey == 0); @@ -35,6 +39,11 @@ static inline int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, return 0; } +static inline bool arch_pkeys_enabled(void) +{ + return false; +} + static inline void copy_init_pkru_to_fpregs(void) { } diff --git a/include/misc/ocxl.h b/include/misc/ocxl.h index 51ccf76db293..9ff6ddc28e22 100644 --- a/include/misc/ocxl.h +++ b/include/misc/ocxl.h @@ -188,6 +188,15 @@ extern int ocxl_link_add_pe(void *link_handle, int pasid, u32 pidr, u32 tidr, void (*xsl_err_cb)(void *data, u64 addr, u64 dsisr), void *xsl_err_data); +/** + * Update values within a Process Element + * + * link_handle: the link handle associated with the process element + * pasid: the PASID for the AFU context + * tid: the new thread id for the process element + */ +extern int ocxl_link_update_pe(void *link_handle, int pasid, __u16 tid); + /* * Remove a Process Element from the Shared Process Area for a link */ diff --git a/include/uapi/misc/ocxl.h b/include/uapi/misc/ocxl.h index 0af83d80fb3e..97937cfa3baa 100644 --- a/include/uapi/misc/ocxl.h +++ b/include/uapi/misc/ocxl.h @@ -48,6 +48,18 @@ struct ocxl_ioctl_metadata { __u64 reserved[13]; // Total of 16*u64 }; +struct ocxl_ioctl_p9_wait { + __u16 thread_id; // The thread ID required to wake this thread + __u16 reserved1; + __u32 reserved2; + __u64 reserved3[3]; +}; + +#define OCXL_IOCTL_FEATURES_FLAGS0_P9_WAIT 0x01 +struct ocxl_ioctl_features { + __u64 flags[4]; +}; + struct ocxl_ioctl_irq_fd { __u64 irq_offset; __s32 eventfd; @@ -62,5 +74,7 @@ struct ocxl_ioctl_irq_fd { #define OCXL_IOCTL_IRQ_FREE _IOW(OCXL_MAGIC, 0x12, __u64) #define OCXL_IOCTL_IRQ_SET_FD _IOW(OCXL_MAGIC, 0x13, struct ocxl_ioctl_irq_fd) #define OCXL_IOCTL_GET_METADATA _IOR(OCXL_MAGIC, 0x14, struct ocxl_ioctl_metadata) +#define OCXL_IOCTL_ENABLE_P9_WAIT _IOR(OCXL_MAGIC, 0x15, struct ocxl_ioctl_p9_wait) +#define OCXL_IOCTL_GET_FEATURES _IOR(OCXL_MAGIC, 0x16, struct ocxl_ioctl_features) #endif /* _UAPI_MISC_OCXL_H */ |