diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2012-01-24 01:26:40 (GMT) |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2012-03-13 07:08:54 (GMT) |
| commit | a9bc247cbbc6310d2aefe4db0a6e92defde4426b (patch) | |
| tree | e1f74e78c90bb09a265c601dcffe0d263e4562db | |
| parent | 0ce71415587b1fd56f67294ac46f860b8b679b95 (diff) | |
| download | linux-a9bc247cbbc6310d2aefe4db0a6e92defde4426b.tar.xz | |
drm/nouveau/pm: detect when we need dll disabled for gddr3
Fixes minor flickering on NVS295 when at perflvl 0.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Martin Peres <martin.peres@labri.fr>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_mem.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_perf.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_pm.h | 1 |
3 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index 3d43098..f0e2a43 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -735,6 +735,8 @@ nouveau_mem_gddr3_mr(struct drm_device *dev, u32 freq, struct nouveau_pm_memtiming *boot, struct nouveau_pm_memtiming *t) { + u8 rver, rlen, *ramcfg = nouveau_perf_ramcfg(dev, freq, &rver, &rlen); + if (len < 15) { t->drive_strength = boot->drive_strength; t->odt = boot->odt; @@ -763,9 +765,17 @@ nouveau_mem_gddr3_mr(struct drm_device *dev, u32 freq, /* CAS */ ((nv_mem_cl_lut_gddr3[e->tCL] & 0x7) << 4) | ((nv_mem_cl_lut_gddr3[e->tCL] & 0x8) >> 2); + t->mr[1] = (boot->mr[1] & 0x100f40) | t->drive_strength | (t->odt << 2) | (nv_mem_wr_lut_gddr3[e->tWR] & 0xf) << 4; + if (ramcfg && rver == 0x00) { + /* DLL enable/disable */ + t->mr[1] &= ~0x00000040; + if (ramcfg[3] & 0x08) + t->mr[1] |= 0x00000040; + } + t->mr[2] = boot->mr[2]; NV_DEBUG(dev, "(%u) MR: %08x %08x %08x", t->id, diff --git a/drivers/gpu/drm/nouveau/nouveau_perf.c b/drivers/gpu/drm/nouveau/nouveau_perf.c index bd6071f..cc8beb8 100644 --- a/drivers/gpu/drm/nouveau/nouveau_perf.c +++ b/drivers/gpu/drm/nouveau/nouveau_perf.c @@ -139,7 +139,7 @@ nouveau_perf_rammap(struct drm_device *dev, u32 freq, return NULL; } -static u8 * +u8 * nouveau_perf_ramcfg(struct drm_device *dev, u32 freq, u8 *ver, u8 *len) { struct drm_nouveau_private *dev_priv = dev->dev_private; diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.h b/drivers/gpu/drm/nouveau/nouveau_pm.h index 5a61f05..1a8ae15 100644 --- a/drivers/gpu/drm/nouveau/nouveau_pm.h +++ b/drivers/gpu/drm/nouveau/nouveau_pm.h @@ -60,6 +60,7 @@ int nouveau_voltage_gpio_set(struct drm_device *, int voltage); void nouveau_perf_init(struct drm_device *); void nouveau_perf_fini(struct drm_device *); u8 *nouveau_perf_timing(struct drm_device *, u32 freq, u8 *ver, u8 *len); +u8 *nouveau_perf_ramcfg(struct drm_device *, u32 freq, u8 *ver, u8 *len); /* nouveau_mem.c */ void nouveau_mem_timing_init(struct drm_device *); |