RE: [v2 0/2] drm/i915/display: Implement Display Wa_16030862157
"Shankar, Uma" <[email protected]>
| Newsgroups | org.freedesktop.lists.intel-gfx,org.freedesktop.lists.intel-xe |
|---|---|
| Message-ID | <DM4PR11MB63609EC5CDB9DD52AAC6E227F4C22@DM4PR11MB6360.namprd11.prod.outlook.com> |
> -----Original Message----- > From: Shankar, Uma <[email protected]> > Sent: Wednesday, July 15, 2026 4:11 PM > To: [email protected]; [email protected] > Cc: Govindapillai, Vinod <[email protected]>; Kandpal, Suraj > <[email protected]>; Shankar, Uma <[email protected]> > Subject: [v2 0/2] drm/i915/display: Implement Display Wa_16030862157 > > Interpret 0xF populated-channel count as 16. For 16-channel configuration, BIOS > programs 1111b. A programmed value of 1111b must be interpreted as 16 > channels for memory bandwidth calculations. > This series implements the workaround in driver. Pushed to drm-intel-next. Thanks for the reviews. > Uma Shankar (2): > drm/i915/display: Add Wa_16030862157 to the display workaround list > drm/i915/dram: Interpret 0xF populated-channel count as 16 > > drivers/gpu/drm/i915/display/intel_bw.c | 20 ++++++++++++++++--- > .../gpu/drm/i915/display/intel_display_wa.c | 2 ++ > .../gpu/drm/i915/display/intel_display_wa.h | 1 + > drivers/gpu/drm/i915/display/intel_dram.c | 12 +++++++++++ > 4 files changed, 32 insertions(+), 3 deletions(-) > > -- > 2.50.1