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Diffstat (limited to 'drivers/misc/cxl/fault.c')
-rw-r--r--drivers/misc/cxl/fault.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index f8684bca2d79..5286b8b704f5 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -20,6 +20,7 @@
#include <asm/mmu.h>
#include "cxl.h"
+#include "trace.h"
static bool sste_matches(struct cxl_sste *sste, struct copro_slb *slb)
{
@@ -75,6 +76,7 @@ static void cxl_load_segment(struct cxl_context *ctx, struct copro_slb *slb)
pr_devel("CXL Populating SST[%li]: %#llx %#llx\n",
sste - ctx->sstp, slb->vsid, slb->esid);
+ trace_cxl_ste_write(ctx, sste - ctx->sstp, slb->esid, slb->vsid);
sste->vsid_data = cpu_to_be64(slb->vsid);
sste->esid_data = cpu_to_be64(slb->esid);
@@ -116,6 +118,7 @@ static int cxl_handle_segment_miss(struct cxl_context *ctx,
int rc;
pr_devel("CXL interrupt: Segment fault pe: %i ea: %#llx\n", ctx->pe, ea);
+ trace_cxl_ste_miss(ctx, ea);
if ((rc = cxl_fault_segment(ctx, mm, ea)))
cxl_ack_ae(ctx);
@@ -135,6 +138,8 @@ static void cxl_handle_page_fault(struct cxl_context *ctx,
int result;
unsigned long access, flags, inv_flags = 0;
+ trace_cxl_pte_miss(ctx, dsisr, dar);
+
if ((result = copro_handle_mm_fault(mm, dar, dsisr, &flt))) {
pr_devel("copro_handle_mm_fault failed: %#x\n", result);
return cxl_ack_ae(ctx);
@@ -180,6 +185,12 @@ void cxl_handle_fault(struct work_struct *fault_work)
return;
}
+ /* Early return if the context is being / has been detached */
+ if (ctx->status == CLOSED) {
+ cxl_ack_ae(ctx);
+ return;
+ }
+
pr_devel("CXL BOTTOM HALF handling fault for afu pe: %i. "
"DSISR: %#llx DAR: %#llx\n", ctx->pe, dsisr, dar);