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-rw-r--r--drivers/gpu/drm/i915/display/intel_dmc.c17
-rw-r--r--drivers/gpu/drm/i915/display/intel_dmc.h3
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index 2fb6fec6dc99..e076ba7e0f28 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -1755,3 +1755,20 @@ u32 intel_pipedmc_start_mmioaddr(struct intel_crtc *crtc)
return dmc ? dmc->dmc_info[dmc_id].start_mmioaddr : 0;
}
+
+void intel_pipedmc_dcb_enable(struct intel_dsb *dsb, struct intel_crtc *crtc)
+{
+ struct intel_display *display = to_intel_display(crtc);
+ enum pipe pipe = crtc->pipe;
+
+ intel_de_write_dsb(display, dsb, PIPEDMC_DCB_CTL(pipe),
+ PIPEDMC_ADAPTIVE_DCB_ENABLE);
+}
+
+void intel_pipedmc_dcb_disable(struct intel_dsb *dsb, struct intel_crtc *crtc)
+{
+ struct intel_display *display = to_intel_display(crtc);
+ enum pipe pipe = crtc->pipe;
+
+ intel_de_write_dsb(display, dsb, PIPEDMC_DCB_CTL(pipe), 0);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.h b/drivers/gpu/drm/i915/display/intel_dmc.h
index 40e9dcb033cc..9c6a42fc820e 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.h
+++ b/drivers/gpu/drm/i915/display/intel_dmc.h
@@ -15,6 +15,7 @@ struct intel_crtc;
struct intel_crtc_state;
struct intel_display;
struct intel_dmc_snapshot;
+struct intel_dsb;
void intel_dmc_init(struct intel_display *display);
void intel_dmc_load_program(struct intel_display *display);
@@ -39,6 +40,8 @@ void intel_dmc_update_dc6_allowed_count(struct intel_display *display, bool star
void assert_main_dmc_loaded(struct intel_display *display);
void intel_pipedmc_irq_handler(struct intel_display *display, enum pipe pipe);
+void intel_pipedmc_dcb_enable(struct intel_dsb *dsb, struct intel_crtc *crtc);
+void intel_pipedmc_dcb_disable(struct intel_dsb *dsb, struct intel_crtc *crtc);
u32 intel_pipedmc_start_mmioaddr(struct intel_crtc *crtc);
void intel_pipedmc_enable_event(struct intel_crtc *crtc,