[Skiboot] [PATCH v2 5/9] Track how long we spend spinning waiting for resource to be loaded

Stewart Smith stewart at linux.vnet.ibm.com
Wed May 6 14:00:50 AEST 2015


This should help us capture (in skiboot log) how long we spend waiting
for resources to load from flash/FSP.

Signed-off-by: Stewart Smith <stewart at linux.vnet.ibm.com>
---
 core/platform.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/platform.c b/core/platform.c
index 2a29a7e..dec7e96 100644
--- a/core/platform.c
+++ b/core/platform.c
@@ -110,12 +110,16 @@ int resource_loaded(enum resource_id id, uint32_t idx)
 int wait_for_resource_loaded(enum resource_id id, uint32_t idx)
 {
 	int r = resource_loaded(id, idx);
+	int waited = 0;
 
 	while(r == OPAL_BUSY) {
 		opal_run_pollers();
 		time_wait_ms_nopoll(5);
+		waited+=5;
 		r = resource_loaded(id, idx);
 	}
 
+	prlog(PR_TRACE, "PLATFORM: wait_for_resource_loaded %x/%x %u ms\n",
+	      id, idx, waited);
 	return r;
 }
-- 
1.7.10.4



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