[Intel-gfx] [PATCH 1/2] tests/pm_rps: Round requested freq correctly

Daniel Vetter daniel.vetter at ffwll.ch
Fri Feb 7 10:03:33 CET 2014


The kernel will round it, so if we don't we'll have a spurious
mismatch. Happens on my machine here with 650-1300MHz range, where the
midpoint is 975.

Cc: Jeff McGee <jeff.mcgee at intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 tests/pm_rps.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/pm_rps.c b/tests/pm_rps.c
index 467038104ec6..27e758755e3f 100644
--- a/tests/pm_rps.c
+++ b/tests/pm_rps.c
@@ -350,6 +350,9 @@ static void min_max_config(void (*check)(void))
 {
 	int fmid = (origfreqs[RPn] + origfreqs[RP0]) / 2;
 
+	/* hw (and so kernel) currently rounds to 50 MHz ... */
+	fmid = fmid / 50 * 50;
+
 	log("\nCheck original min and max...\n");
 	check();
 
-- 
1.8.1.4




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