diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/cxl/cxl.h | 20 | ||||
| -rw-r--r-- | drivers/misc/cxl/hcalls.c | 6 | ||||
| -rw-r--r-- | drivers/misc/cxl/native.c | 5 |
3 files changed, 7 insertions, 24 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; diff --git a/drivers/misc/cxl/hcalls.c b/drivers/misc/cxl/hcalls.c index d6d11f4056d7..9b8bb0f80c3b 100644 --- a/drivers/misc/cxl/hcalls.c +++ b/drivers/misc/cxl/hcalls.c @@ -413,9 +413,9 @@ long cxl_h_collect_int_info(u64 unit_address, u64 process_token, switch (rc) { case H_SUCCESS: /* The interrupt info is returned in return registers. */ - pr_devel("dsisr:%#llx, dar:%#llx, dsr:%#llx, pid:%u, tid:%u, afu_err:%#llx, errstat:%#llx\n", - info->dsisr, info->dar, info->dsr, info->pid, - info->tid, info->afu_err, info->errstat); + pr_devel("dsisr:%#llx, dar:%#llx, dsr:%#llx, pid_tid:%#llx, afu_err:%#llx, errstat:%#llx\n", + info->dsisr, info->dar, info->dsr, info->reserved, + info->afu_err, info->errstat); return 0; case H_PARAMETER: /* An incorrect parameter was supplied. */ return -EINVAL; diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c index 7ae710585267..7257e8b8b52d 100644 --- a/drivers/misc/cxl/native.c +++ b/drivers/misc/cxl/native.c @@ -859,8 +859,6 @@ static int native_detach_process(struct cxl_context *ctx) static int native_get_irq_info(struct cxl_afu *afu, struct cxl_irq_info *info) { - u64 pidtid; - /* If the adapter has gone away, we can't get any meaningful * information. */ @@ -870,9 +868,6 @@ static int native_get_irq_info(struct cxl_afu *afu, struct cxl_irq_info *info) info->dsisr = cxl_p2n_read(afu, CXL_PSL_DSISR_An); info->dar = cxl_p2n_read(afu, CXL_PSL_DAR_An); info->dsr = cxl_p2n_read(afu, CXL_PSL_DSR_An); - pidtid = cxl_p2n_read(afu, CXL_PSL_PID_TID_An); - info->pid = pidtid >> 32; - info->tid = pidtid & 0xffffffff; info->afu_err = cxl_p2n_read(afu, CXL_AFU_ERR_An); info->errstat = cxl_p2n_read(afu, CXL_PSL_ErrStat_An); info->proc_handle = 0; |