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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-10-11 09:50:59 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-10-11 09:50:59 +0200 |
| commit | 57390019b68b83f96eb98f490367b9df1f2d77cb (patch) | |
| tree | e6d4b6c75efdd2d7fb7d37f980688c491be3ff6a /arch/powerpc/include/asm/vphn.h | |
| parent | e5f9d543419c78ac58f3b3557bc5a76b20ff600b (diff) | |
| parent | 389af786f92ecdff35883551d54bf4e507ffcccb (diff) | |
Merge drm/drm-next into drm-misc-next
Updating drm-misc-next to the state of Linux v6.6-rc2.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'arch/powerpc/include/asm/vphn.h')
| -rw-r--r-- | arch/powerpc/include/asm/vphn.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/vphn.h b/arch/powerpc/include/asm/vphn.h new file mode 100644 index 000000000000..8c2f795eea68 --- /dev/null +++ b/arch/powerpc/include/asm/vphn.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _ASM_POWERPC_VPHN_H +#define _ASM_POWERPC_VPHN_H + +/* The H_HOME_NODE_ASSOCIATIVITY h_call returns 6 64-bit registers. */ +#define VPHN_REGISTER_COUNT 6 + +/* + * 6 64-bit registers unpacked into up to 24 be32 associativity values. To + * form the complete property we have to add the length in the first cell. + */ +#define VPHN_ASSOC_BUFSIZE (VPHN_REGISTER_COUNT*sizeof(u64)/sizeof(u16) + 1) + +/* + * The H_HOME_NODE_ASSOCIATIVITY hcall takes two values for flags: + * 1 for retrieving associativity information for a guest cpu + * 2 for retrieving associativity information for a host/hypervisor cpu + */ +#define VPHN_FLAG_VCPU 1 +#define VPHN_FLAG_PCPU 2 + +long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity); + +#endif // _ASM_POWERPC_VPHN_H |