Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-09 22:50:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

cxl: Set psl_fir_cntl to production environment value

Browse Source 
Switch the setting of psl_fir_cntl from debug to production
environment recommended value. It mostly affects the PSL behavior when
an error is raised in psl_fir1/2.

Tested with cxlflash.

Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Reviewed-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Frederic Barrat 2016-08-08 11:57:48 +02:00 committed by Michael Ellerman
parent 5958d19a14
commit c6d2ee09c2
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/misc/cxl/pci.c
View File

@ -379,7 +379,7 @@ static int calc_capp_routing(struct pci_dev *dev, u64 *chipid, u64 *capp_unit_id
static int init_implementation_adapter_psl_regs(struct cxl *adapter, struct pci_dev *dev)
{
u64 psl_dsnctl;
u64 psl_dsnctl, psl_fircntl;
u64 chipid;
u64 capp_unit_id;
int rc;
@ -398,8 +398,11 @@ static int init_implementation_adapter_psl_regs(struct cxl *adapter, struct pci_
cxl_p1_write(adapter, CXL_PSL_RESLCKTO, 0x20000000200ULL);
/* snoop write mask */
cxl_p1_write(adapter, CXL_PSL_SNWRALLOC, 0x00000000FFFFFFFFULL);
/* set fir_accum */
cxl_p1_write(adapter, CXL_PSL_FIR_CNTL, 0x0800000000000000ULL);
/* set fir_cntl to recommended value for production env */
psl_fircntl = (0x2ULL << (63-3)); /* ce_report */
psl_fircntl |= (0x1ULL << (63-6)); /* FIR_report */
psl_fircntl |= 0x1ULL; /* ce_thresh */
cxl_p1_write(adapter, CXL_PSL_FIR_CNTL, psl_fircntl);
/* for debugging with trace arrays */
cxl_p1_write(adapter, CXL_PSL_TRACE, 0x0000FF7C00000000ULL);