From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Gen2/3 have no TIMESTAMP registers to sample so no point in thinking
we have any frequency for it either.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c b/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c
index ebb7a5b3e87c..23a27e49b898 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c
@@ -139,7 +139,7 @@ static u32 g4x_read_clock_frequency(struct intel_uncore *uncore)
return 1000000000 / 1024;
}
-static u32 gen2_read_clock_frequency(struct intel_uncore *uncore)
+static u32 gen4_read_clock_frequency(struct intel_uncore *uncore)
{
/*
* PRMs say:
@@ -163,8 +163,10 @@ static u32 read_clock_frequency(struct intel_uncore *uncore)
return gen5_read_clock_frequency(uncore);
else if (IS_G4X(uncore->i915))
return g4x_read_clock_frequency(uncore);
+ else if (GRAPHICS_VER(uncore->i915) == 4)
+ return gen4_read_clock_frequency(uncore);
else
- return gen2_read_clock_frequency(uncore);
+ return 0;
}
void intel_gt_init_clock_frequency(struct intel_gt *gt)
--
2.37.4
