diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2011-11-09 10:22:25 (GMT) |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-12-21 09:01:44 (GMT) |
| commit | c8b9641a9146b13d34824f99c3d22c8c0c3a06bd (patch) | |
| tree | 3b4280f3757ab9f9e82a4feaaec0336b38040a03 /drivers/gpu | |
| parent | eeb7a50bddb281d7beecb0ad73c9f1233e9932c2 (diff) | |
| download | linux-fsl-qoriq-c8b9641a9146b13d34824f99c3d22c8c0c3a06bd.tar.xz | |
drm/nouveau/hwsq: remove some magic, give proper opcode names
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_hwsq.h | 21 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_pm.c | 8 |
2 files changed, 23 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_hwsq.h b/drivers/gpu/drm/nouveau/nouveau_hwsq.h index d59a3b3..6976875 100644 --- a/drivers/gpu/drm/nouveau/nouveau_hwsq.h +++ b/drivers/gpu/drm/nouveau/nouveau_hwsq.h @@ -57,9 +57,26 @@ hwsq_fini(struct hwsq_ucode *hwsq) } static inline void -hwsq_unkn(struct hwsq_ucode *hwsq, u8 v0) +hwsq_usec(struct hwsq_ucode *hwsq, u8 usec) { - *hwsq->ptr.u08++ = v0; + u32 shift = 0; + while (usec & ~3) { + usec >>= 2; + shift++; + } + + *hwsq->ptr.u08++ = (shift << 2) | usec; +} + +static inline void +hwsq_setf(struct hwsq_ucode *hwsq, u8 flag, int val) +{ + flag += 0x80; + if (val >= 0) + flag += 0x20; + if (val >= 1) + flag += 0x20; + *hwsq->ptr.u08++ = flag; } static inline void diff --git a/drivers/gpu/drm/nouveau/nv50_pm.c b/drivers/gpu/drm/nouveau/nv50_pm.c index 22789db..fce1214 100644 --- a/drivers/gpu/drm/nouveau/nv50_pm.c +++ b/drivers/gpu/drm/nouveau/nv50_pm.c @@ -459,7 +459,7 @@ calc_mclk(struct drm_device *dev, u32 freq, struct hwsq_ucode *hwsq) } if (dev_priv->chipset >= 0x92) hwsq_wr32(hwsq, 0x611200, 0x00003300); /* disable scanout */ - hwsq_unkn(hwsq, 0xb0); /* disable bus access */ + hwsq_setf(hwsq, 0x10, 0); /* disable bus access */ hwsq_op5f(hwsq, 0x00, 0x01); /* no idea :s */ /* prepare memory controller */ @@ -478,10 +478,10 @@ calc_mclk(struct drm_device *dev, u32 freq, struct hwsq_ucode *hwsq) hwsq_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge banks and idle */ hwsq_wr32(hwsq, 0x1002dc, 0x00000000); /* stop self refresh mode */ hwsq_wr32(hwsq, 0x100210, 0x80000000); /* restart automatic refresh */ - hwsq_unkn(hwsq, 0x07); /* wait for the PLL to stabilize (12us) */ + hwsq_usec(hwsq, 12); /* wait for the PLL to stabilize */ - hwsq_unkn(hwsq, 0x0b); /* may be unnecessary: causes flickering */ - hwsq_unkn(hwsq, 0xd0); /* enable bus access again */ + hwsq_usec(hwsq, 48); /* may be unnecessary: causes flickering */ + hwsq_setf(hwsq, 0x10, 1); /* enable bus access */ hwsq_op5f(hwsq, 0x00, 0x00); /* no idea, reverse of 0x00, 0x01? */ if (dev_priv->chipset >= 0x92) hwsq_wr32(hwsq, 0x611200, 0x00003330); /* enable scanout */ |