drm/radeon/dpm: save some display parameters for DPM
Required for SI.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 10ccd87..0de5b74 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2267,6 +2267,10 @@
WREG32(PRIORITY_A_CNT + radeon_crtc->crtc_offset, priority_a_cnt);
WREG32(PRIORITY_B_CNT + radeon_crtc->crtc_offset, priority_b_cnt);
+ /* save values for DPM */
+ radeon_crtc->line_time = line_time;
+ radeon_crtc->wm_high = latency_watermark_a;
+ radeon_crtc->wm_low = latency_watermark_b;
}
/**
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 7cc13ba..0a4b50f 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -331,6 +331,10 @@
u32 pll_flags;
struct drm_encoder *encoder;
struct drm_connector *connector;
+ /* for dpm */
+ u32 line_time;
+ u32 wm_low;
+ u32 wm_high;
};
struct radeon_encoder_primary_dac {
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 6c5cbe0..660781b 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -2166,6 +2166,10 @@
WREG32(PRIORITY_A_CNT + radeon_crtc->crtc_offset, priority_a_cnt);
WREG32(PRIORITY_B_CNT + radeon_crtc->crtc_offset, priority_b_cnt);
+ /* save values for DPM */
+ radeon_crtc->line_time = line_time;
+ radeon_crtc->wm_high = latency_watermark_a;
+ radeon_crtc->wm_low = latency_watermark_b;
}
void dce6_bandwidth_update(struct radeon_device *rdev)