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drm/i915: Stop claiming cs timestamp frquency on gen2/3

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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@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221031135703.14670-3-ville.syrjala@linux.intel.com
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
This commit is contained in:
Ville Syrjälä 2022-10-31 15:56:59 +02:00
parent ad1ea98019
commit 78e418d0ea
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c
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@ -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)