kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

drm/nouveau/mem: handle dll_off for ddr2/ddr3

Browse source 
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Martin Peres <martin.peres@labri.fr>
This commit is contained in:
Ben Skeggs 2012-01-24 18:30:10 +10:00
parent 25c53c1068
commit 070be296b6
1 changed files with 23 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

34
drivers/gpu/drm/nouveau/nouveau_mem.c
View file

@ -735,8 +735,6 @@ 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;
@ -765,17 +763,9 @@ 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,
@ -832,7 +822,7 @@ nouveau_mem_timing_calc(struct drm_device *dev, u32 freq,
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct nouveau_pm_memtiming *boot = &pm->boot.timing;
struct nouveau_pm_tbl_entry *e;
u8 ver, len, *ptr;
u8 ver, len, *ptr, *ramcfg;
int ret;
ptr = nouveau_perf_timing(dev, freq, &ver, &len);
@ -874,6 +864,28 @@ nouveau_mem_timing_calc(struct drm_device *dev, u32 freq,
break;
default:
ret = -EINVAL;
break;
}
ramcfg = nouveau_perf_ramcfg(dev, freq, &ver, &len);
if (ramcfg) {
int dll_off;
if (ver == 0x00)
dll_off = !!(ramcfg[3] & 0x04);
else
dll_off = !!(ramcfg[2] & 0x40);
switch (dev_priv->vram_type) {
case NV_MEM_TYPE_GDDR3:
t->mr[1] &= ~0x00000040;
t->mr[1] |= 0x00000040 * dll_off;
break;
default:
t->mr[1] &= ~0x00000001;
t->mr[1] |= 0x00000001 * dll_off;
break;
}
}
return ret;