Op 18-07-17 om 14:49 schreef Mahesh Kumar: > From: "Kumar, Mahesh" <mahesh1.kumar@xxxxxxxxx> > > This patch adds IPC support. This patch also enables IPC in all supported > platforms based on has_ipc flag. > IPC (Isochronous Priority Control) is the hardware feature, which > dynamically controls the memory read priority of Display. > > When IPC is enabled, plane read requests are sent at high priority until > filling above the transition watermark, then the requests are sent at > lower priority until dropping below the level 0 watermark. > The lower priority requests allow other memory clients to have better > memory access. When IPC is disabled, all plane read requests are sent at > high priority. > > Changes since V1: > - Remove commandline parameter to disable ipc > - Address Paulo's comments > Changes since V2: > - Address review comments > - Set ipc_enabled flag > Changes since V3: > - move ipc_enabled flag assignment inside intel_ipc_enable function > Changes since V4: > - Re-enable IPC after suspend/resume > Changes since V5: > - Enable IPC for all gen >=9 except SKL > Changes since V6: > - fix commit msg > - after resume program IPC based on SW state. > Changes since V7: > - Modify IPC support check based on HAS_IPC macro (suggested by Chris) Much better, for all patches without comments.. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
