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| author | Christophe Lombard <clombard@linux.vnet.ibm.com> | 2017-04-07 16:11:54 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-04-13 23:34:28 +1000 |
| commit | 66ef20c7834b7df18168b12a57ef01c6ae0d1a81 (patch) | |
| tree | 49566665ba60779bff5cf242a6e58fde0c09b487 /drivers/misc/cxl/native.c | |
| parent | aba81433b50350fde68bf80fe9f75d671e15b5ae (diff) | |
| download | lwn-66ef20c7834b7df18168b12a57ef01c6ae0d1a81.tar.gz lwn-66ef20c7834b7df18168b12a57ef01c6ae0d1a81.zip | |
cxl: Remove unused values in bare-metal environment.
The two previously fields pid and tid, located in the structure
cxl_irq_info, are only used in the guest environment. To avoid confusion,
it's not necessary to fill the fields in the bare-metal environment.
Pid_tid is now renamed to 'reserved' to avoid undefined behavior on
bare-metal. The PSL Process and Thread Identification Register
(CXL_PSL_PID_TID_An) is only used when attaching a dedicated process
for PSL8 only. This register goes away in CAIA2.
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/cxl/native.c')
| -rw-r--r-- | drivers/misc/cxl/native.c | 5 |
1 files changed, 0 insertions, 5 deletions
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; |