From: Tvrtko Ursulin <[email protected]> On Xe_HP the fusing register is renamed and changed to have the "enable" semantics, but otherwise remains compatible (mmio address, bitmask ranges) with older platforms.
To simplify things we do not add a new register definition but just stop inverting the fusing masks before processing them. Bspec: 52615 Cc: Daniele Ceraolo Spurio <[email protected]> Signed-off-by: Tvrtko Ursulin <[email protected]> Signed-off-by: Matt Roper <[email protected]> Reviewed-by: Lucas De Marchi <[email protected]> --- drivers/gpu/drm/i915/gt/intel_engine_cs.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index d561573ed98c..5cfeb91d1b7b 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -468,7 +468,14 @@ static intel_engine_mask_t init_engine_mask(struct intel_gt *gt) if (GRAPHICS_VER(i915) < 11) return info->engine_mask; - media_fuse = ~intel_uncore_read(uncore, GEN11_GT_VEBOX_VDBOX_DISABLE); + /* + * On newer platforms the fusing register is called 'enable' and has + * enable semantics, while on older platforms it is called 'disable' + * and bits have disable semantices. + */ + media_fuse = intel_uncore_read(uncore, GEN11_GT_VEBOX_VDBOX_DISABLE); + if (GRAPHICS_VER_FULL(i915) < IP_VER(12, 50)) + media_fuse = ~media_fuse; vdbox_mask = media_fuse & GEN11_GT_VDBOX_DISABLE_MASK; vebox_mask = (media_fuse & GEN11_GT_VEBOX_DISABLE_MASK) >> -- 2.25.4 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
