summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorFrederic Barrat <fbarrat@linux.vnet.ibm.com>2016-08-08 11:57:48 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2016-08-10 14:02:45 +1000
commitc6d2ee09c2fffd3efdd31be2b2811d081a45bb99 (patch)
treeaae57a685c2bd88dbd33e0cdcf75ccc9bab7bdc3
parent5958d19a143eb229e9ece20bd4c781ad41cb7d24 (diff)
downloadop-kernel-dev-c6d2ee09c2fffd3efdd31be2b2811d081a45bb99.zip
op-kernel-dev-c6d2ee09c2fffd3efdd31be2b2811d081a45bb99.tar.gz
cxl: Set psl_fir_cntl to production environment value
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>
-rw-r--r--drivers/misc/cxl/pci.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 1d0347c3..6f0c4ac 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -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);
OpenPOWER on IntegriCloud