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

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2020-02-17 14:33:57 +10:00
parent ed3d1489d2
commit 374b55802c
3 changed files with 25 additions and 6 deletions
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21
drivers/gpu/drm/nouveau/dispnv50/curs507a.c
View file

@ -24,21 +24,36 @@
#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)
{
nvif_wr32(&wndw->wimm.base.user, 0x0080, 0x00000000);
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)
{
nvif_wr32(&wndw->wimm.base.user, 0x0084, asyw->point.y << 16 |
asyw->point.x);
if (curs507a_space(wndw)) {
nvif_wr32(&wndw->wimm.base.user, 0x0084, asyw->point.y << 16 |
asyw->point.x);
}
}
const struct nv50_wimm_func

9
drivers/gpu/drm/nouveau/dispnv50/cursc37a.c
View file

@ -25,14 +25,17 @@
static void
cursc37a_update(struct nv50_wndw *wndw, u32 *interlock)
{
nvif_wr32(&wndw->wimm.base.user, 0x0200, 0x00000001);
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)
{
nvif_wr32(&wndw->wimm.base.user, 0x0208, asyw->point.y << 16 |
asyw->point.x);
if (curs507a_space(wndw)) {
nvif_wr32(&wndw->wimm.base.user, 0x0208, asyw->point.y << 16 |
asyw->point.x);
}
}
static const struct nv50_wimm_func

1
drivers/gpu/drm/nouveau/dispnv50/wndw.h
View file

@ -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 **);