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drm/i915/gt: Do not attempt to reprogram IA/ring frequencies for dgfx

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For dgfx, we do not need to reconfigure the IA/ring frequencies of the
main processors as they are distinct devices.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200219130119.1457693-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2020-02-19 13:01:19 +00:00
parent bd3d1f8673
commit c014e07616
2 changed files with 6 additions and 11 deletions
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6
drivers/gpu/drm/i915/gt/intel_llc.c
View file

@ -50,6 +50,9 @@ static bool get_ia_constants(struct intel_llc *llc,
struct drm_i915_private *i915 = llc_to_gt(llc)->i915; struct drm_i915_private *i915 = llc_to_gt(llc)->i915;
struct intel_rps *rps = &llc_to_gt(llc)->rps; struct intel_rps *rps = &llc_to_gt(llc)->rps;
if (!HAS_LLC(i915) || IS_DGFX(i915))
return false;
if (rps->max_freq <= rps->min_freq) if (rps->max_freq <= rps->min_freq)
return false; return false;
@ -147,8 +150,7 @@ static void gen6_update_ring_freq(struct intel_llc *llc)
void intel_llc_enable(struct intel_llc *llc) void intel_llc_enable(struct intel_llc *llc)
{ {
if (HAS_LLC(llc_to_gt(llc)->i915)) gen6_update_ring_freq(llc);
gen6_update_ring_freq(llc);
} }
void intel_llc_disable(struct intel_llc *llc) void intel_llc_disable(struct intel_llc *llc)

11
drivers/gpu/drm/i915/gt/selftest_llc.c
View file

@ -18,10 +18,8 @@ static int gen6_verify_ring_freq(struct intel_llc *llc)
wakeref = intel_runtime_pm_get(llc_to_gt(llc)->uncore->rpm); wakeref = intel_runtime_pm_get(llc_to_gt(llc)->uncore->rpm);
if (!get_ia_constants(llc, &consts)) { if (!get_ia_constants(llc, &consts))
err = -ENODEV;
goto out_rpm; goto out_rpm;
}
for (gpu_freq = consts.min_gpu_freq; for (gpu_freq = consts.min_gpu_freq;
gpu_freq <= consts.max_gpu_freq; gpu_freq <= consts.max_gpu_freq;
@ -71,10 +69,5 @@ out_rpm:
int st_llc_verify(struct intel_llc *llc) int st_llc_verify(struct intel_llc *llc)
{ {
int err = 0; return gen6_verify_ring_freq(llc);
if (HAS_LLC(llc_to_gt(llc)->i915))
err = gen6_verify_ring_freq(llc);
return err;
} }