Commit 7983117f authored by Jesse Barnes's avatar Jesse Barnes Committed by Daniel Vetter

drm/i915: enable display messages to GT on ValleyView

Enable the on-chip messaging between the display engine and the GT.

v2: use bit definitions for DPFLIPSTAT reg
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 31acc7f5
......@@ -2653,13 +2653,13 @@
#define PIPESTAT(pipe) _PIPE(pipe, _PIPEASTAT, _PIPEBSTAT)
#define VLV_DPFLIPSTAT 0x70028
#define PIPEB_LINE_COMPARE_STATUS (1<<29)
#define PIPEB_LINE_COMPARE_INT_EN (1<<29)
#define PIPEB_HLINE_INT_EN (1<<28)
#define PIPEB_VBLANK_INT_EN (1<<27)
#define SPRITED_FLIPDONE_INT_EN (1<<26)
#define SPRITEC_FLIPDONE_INT_EN (1<<25)
#define PLANEB_FLIPDONE_INT_EN (1<<24)
#define PIPEA_LINE_COMPARE_STATUS (1<<21)
#define PIPEA_LINE_COMPARE_INT_EN (1<<21)
#define PIPEA_HLINE_INT_EN (1<<20)
#define PIPEA_VBLANK_INT_EN (1<<19)
#define SPRITEB_FLIPDONE_INT_EN (1<<18)
......
......@@ -3528,6 +3528,19 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
I915_WRITE(CACHE_MODE_1,
_MASKED_BIT_ENABLE(PIXEL_SUBSPAN_COLLECT_OPT_DISABLE));
/*
* On ValleyView, the GUnit needs to signal the GT
* when flip and other events complete. So enable
* all the GUnit->GT interrupts here
*/
I915_WRITE(VLV_DPFLIPSTAT, PIPEB_LINE_COMPARE_INT_EN |
PIPEB_HLINE_INT_EN | PIPEB_VBLANK_INT_EN |
SPRITED_FLIPDONE_INT_EN | SPRITEC_FLIPDONE_INT_EN |
PLANEB_FLIPDONE_INT_EN | PIPEA_LINE_COMPARE_INT_EN |
PIPEA_HLINE_INT_EN | PIPEA_VBLANK_INT_EN |
SPRITEB_FLIPDONE_INT_EN | SPRITEA_FLIPDONE_INT_EN |
PLANEA_FLIPDONE_INT_EN);
}
static void g4x_init_clock_gating(struct drm_device *dev)
......
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