Commit 374b5580 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/kms/nv50-: wait for FIFO space on PIO channels



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent ed3d1489
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+18 −3
Original line number Diff line number Diff line
@@ -24,22 +24,37 @@
#include "head.h"

#include <nvif/cl507a.h>
#include <nvif/timer.h>

#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>

bool
curs507a_space(struct nv50_wndw *wndw)
{
	nvif_msec(&nouveau_drm(wndw->plane.dev)->client.device, 2,
		if (nvif_rd32(&wndw->wimm.base.user, 0x0008) >= 4)
			return true;
	);
	WARN_ON(1);
	return false;
}

static void
curs507a_update(struct nv50_wndw *wndw, u32 *interlock)
{
	if (curs507a_space(wndw))
		nvif_wr32(&wndw->wimm.base.user, 0x0080, 0x00000000);
}

static void
curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
{
	if (curs507a_space(wndw)) {
		nvif_wr32(&wndw->wimm.base.user, 0x0084, asyw->point.y << 16 |
							 asyw->point.x);
	}
}

const struct nv50_wimm_func
curs507a = {
+6 −3
Original line number Diff line number Diff line
@@ -25,15 +25,18 @@
static void
cursc37a_update(struct nv50_wndw *wndw, u32 *interlock)
{
	if (curs507a_space(wndw))
		nvif_wr32(&wndw->wimm.base.user, 0x0200, 0x00000001);
}

static void
cursc37a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
{
	if (curs507a_space(wndw)) {
		nvif_wr32(&wndw->wimm.base.user, 0x0208, asyw->point.y << 16 |
							 asyw->point.x);
	}
}

static const struct nv50_wimm_func
cursc37a = {
+1 −0
Original line number Diff line number Diff line
@@ -97,6 +97,7 @@ struct nv50_wimm_func {
};

extern const struct nv50_wimm_func curs507a;
bool curs507a_space(struct nv50_wndw *);

int wndwc37e_new(struct nouveau_drm *, enum drm_plane_type, int, s32,
		 struct nv50_wndw **);