> -----Original Message----- > From: Roper, Matthew D <matthew.d.roper@xxxxxxxxx> > Sent: Thursday, October 24, 2024 1:15 AM > To: Kandpal, Suraj <suraj.kandpal@xxxxxxxxx> > Cc: intel-xe@xxxxxxxxxxxxxxxxxxxxx; intel-gfx@xxxxxxxxxxxxxxxxxxxxx; Nautiyal, > Ankit K <ankit.k.nautiyal@xxxxxxxxx>; Ghimiray, Himal Prasad > <himal.prasad.ghimiray@xxxxxxxxx> > Subject: Re: [PATCH] drm/xe/hdcp: Add check to remove hdcp2 compatibility > > On Tue, Oct 22, 2024 at 12:59:20PM +0530, Suraj Kandpal wrote: > > Add check to remove HDCP2 compatibility from BMG as it does not have > > GSC which ends up causing warning when we try to get reference of GSC > > FW. > > Why do you say BMG doesn't have GSC? I don't see anything in the bspec > indicating it wouldn't have it. > > If you're missing the GSC firmware, then we'll disable the engine, but that's > true on any platform. > We are missing the GSC firmware here since the decision was taken not to code in GSC for this Platform Daniele can provide more information here Regards, Suraj Kandpal > > Matt > > > > > Fixes: 89d030804831 ("drm/xe/hdcp: Fix condition for hdcp gsc cs > > requirement") > > Fixes: 883631771038 ("drm/i915/mtl: Add HDCP GSC interface") > > Signed-off-by: Suraj Kandpal <suraj.kandpal@xxxxxxxxx> > > Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx> > > Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@xxxxxxxxx> > > --- > > drivers/gpu/drm/i915/display/intel_hdcp_gsc.c | 3 ++- > > drivers/gpu/drm/xe/display/xe_hdcp_gsc.c | 4 +++- > > 2 files changed, 5 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c > > b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c > > index 55965844d829..2c1d0ee8cec2 100644 > > --- a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c > > +++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c > > @@ -21,7 +21,8 @@ struct intel_hdcp_gsc_message { > > > > bool intel_hdcp_gsc_cs_required(struct intel_display *display) { > > - return DISPLAY_VER(display) >= 14; > > + return DISPLAY_VER(display) >= 14 && > > + DISPLAY_VER_FULL(display) != IP_VER(14, 1); > > } > > > > bool intel_hdcp_gsc_check_status(struct intel_display *display) diff > > --git a/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c > > b/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c > > index 231677129a35..efa3441c249c 100644 > > --- a/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c > > +++ b/drivers/gpu/drm/xe/display/xe_hdcp_gsc.c > > @@ -8,6 +8,7 @@ > > #include <linux/delay.h> > > > > #include "abi/gsc_command_header_abi.h" > > +#include "i915_drv.h" > > #include "intel_hdcp_gsc.h" > > #include "intel_hdcp_gsc_message.h" > > #include "xe_bo.h" > > @@ -32,7 +33,8 @@ struct intel_hdcp_gsc_message { > > > > bool intel_hdcp_gsc_cs_required(struct intel_display *display) { > > - return DISPLAY_VER(display) >= 14; > > + return DISPLAY_VER(display) >= 14 && > > + DISPLAY_VER_FULL(display) != IP_VER(14, 1); > > } > > > > bool intel_hdcp_gsc_check_status(struct intel_display *display) > > -- > > 2.34.1 > > > > -- > Matt Roper > Graphics Software Engineer > Linux GPU Platform Enablement > Intel Corporation