diff options
Diffstat (limited to 'drivers/misc/cxl/cxl.h')
| -rw-r--r-- | drivers/misc/cxl/cxl.h | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 79e60ec70bd3..36bc213629ad 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -888,27 +888,15 @@ int __detach_context(struct cxl_context *ctx); /* * This must match the layout of the H_COLLECT_CA_INT_INFO retbuf defined * in PAPR. - * A word about endianness: a pointer to this structure is passed when - * calling the hcall. However, it is not a block of memory filled up by - * the hypervisor. The return values are found in registers, and copied - * one by one when returning from the hcall. See the end of the call to - * plpar_hcall9() in hvCall.S - * As a consequence: - * - we don't need to do any endianness conversion - * - the pid and tid are an exception. They are 32-bit values returned in - * the same 64-bit register. So we do need to worry about byte ordering. + * Field pid_tid is now 'reserved' because it's no more used on bare-metal. + * On a guest environment, PSL_PID_An is located on the upper 32 bits and + * PSL_TID_An register in the lower 32 bits. */ struct cxl_irq_info { u64 dsisr; u64 dar; u64 dsr; -#ifndef CONFIG_CPU_LITTLE_ENDIAN - u32 pid; - u32 tid; -#else - u32 tid; - u32 pid; -#endif + u64 reserved; u64 afu_err; u64 errstat; u64 proc_handle; |