diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2013-11-14 13:37:48 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2014-01-30 08:18:36 +1000 |
| commit | d2fa7d32ea7b54d910637e50df4972e3540722d4 (patch) | |
| tree | 075f4af98aca095896f07a87e4a5eddc980226e7 /drivers/gpu/drm/nouveau/core/engine/disp/nv50.c | |
| parent | eb2e9686d6bc94559dc7f25ed1e67ebbf0a9a41b (diff) | |
| download | op-kernel-dev-d2fa7d32ea7b54d910637e50df4972e3540722d4.zip op-kernel-dev-d2fa7d32ea7b54d910637e50df4972e3540722d4.tar.gz | |
drm/nouveau/disp: add a method to fetch info needed by drm vblank timestamping
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/engine/disp/nv50.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/disp/nv50.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c index c168ae3..940eaa5 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c @@ -541,6 +541,35 @@ nv50_disp_curs_ofuncs = { * Base display object ******************************************************************************/ +int +nv50_disp_base_scanoutpos(struct nouveau_object *object, u32 mthd, + void *data, u32 size) +{ + struct nv50_disp_priv *priv = (void *)object->engine; + struct nv04_display_scanoutpos *args = data; + const int head = (mthd & NV50_DISP_MTHD_HEAD); + u32 blanke, blanks, total; + + if (size < sizeof(*args) || head >= priv->head.nr) + return -EINVAL; + blanke = nv_rd32(priv, 0x610aec + (head * 0x540)); + blanks = nv_rd32(priv, 0x610af4 + (head * 0x540)); + total = nv_rd32(priv, 0x610afc + (head * 0x540)); + + args->vblanke = (blanke & 0xffff0000) >> 16; + args->hblanke = (blanke & 0x0000ffff); + args->vblanks = (blanks & 0xffff0000) >> 16; + args->hblanks = (blanks & 0x0000ffff); + args->vtotal = ( total & 0xffff0000) >> 16; + args->htotal = ( total & 0x0000ffff); + + args->time[0] = ktime_to_ns(ktime_get()); + args->vline = nv_rd32(priv, 0x616340 + (head * 0x800)) & 0xffff; + args->time[1] = ktime_to_ns(ktime_get()); /* vline read locks hline */ + args->hline = nv_rd32(priv, 0x616344 + (head * 0x800)) & 0xffff; + return 0; +} + static void nv50_disp_base_vblank_enable(struct nouveau_event *event, int head) { @@ -675,6 +704,7 @@ nv50_disp_base_ofuncs = { static struct nouveau_omthds nv50_disp_base_omthds[] = { + { HEAD_MTHD(NV50_DISP_SCANOUTPOS) , nv50_disp_base_scanoutpos }, { SOR_MTHD(NV50_DISP_SOR_PWR) , nv50_sor_mthd }, { SOR_MTHD(NV50_DISP_SOR_LVDS_SCRIPT) , nv50_sor_mthd }, { DAC_MTHD(NV50_DISP_DAC_PWR) , nv50_dac_mthd }, |
