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Commit d05f7e70 authored by Alex Deucher's avatar Alex Deucher
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drm/radeon/dpm: disable cac setup on SI 



Disable cac setup on SI for now since it causes
strange performance level restrictions on certain
cards.  I suspect there may be issues with some of
the 64 bit fixed point double emulation that is used
to set up those parameters.  I need to double check
the math before this can be re-enabled.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3652f005

drivers/gpu/drm/radeon/si_dpm.c

+3 −1
Original line number Diff line number Diff line
@@ -1929,6 +1929,7 @@ static void si_initialize_powertune_defaults(struct radeon_device *rdev) 
			si_pi->cac_override = cac_override_pitcairn;

			si_pi->powertune_data = &powertune_data_pitcairn;

			si_pi->dte_data = dte_data_pitcairn;

			break;

		}

	} else if (rdev->family == CHIP_VERDE) {

		si_pi->lcac_config = lcac_cape_verde;
@@ -2041,7 +2042,8 @@ static void si_initialize_powertune_defaults(struct radeon_device *rdev) 
	ni_pi->enable_sq_ramping = false;

	si_pi->enable_dte = false;



	if (si_pi->powertune_data->enable_powertune_by_default) {

	/* XXX: fix me */

	if (0/*si_pi->powertune_data->enable_powertune_by_default*/) {

		ni_pi->enable_power_containment= true;

		ni_pi->enable_cac = true;

		if (si_pi->dte_data.enable_dte_by_default) {