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drm/nve0/fb/gddr5: note another semi-unknown 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2013-11-28 12:45:02 +10:00
parent 1e1d6b4c53
commit 09692e5b4e
1 changed files with 15 additions and 12 deletions
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27
drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
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@ -466,20 +466,23 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
ram_mask(fuc, 0x10f2cc, 0xffffffff, nv_ro32(bios, timing + 0x20));
ram_mask(fuc, 0x10f2e8, 0xffffffff, nv_ro32(bios, timing + 0x24));
data = (nv_ro08(bios, ramcfg + 0x02) & 0x03) << 8;
if (nv_ro08(bios, ramcfg + 0x01) & 0x10)
data |= 0x70000000;
ram_mask(fuc, 0x10f604, 0x70000300, data);
/*XXX: what's the condition here? */
if (1) {
data = (nv_ro08(bios, ramcfg + 0x02) & 0x03) << 8;
if (nv_ro08(bios, ramcfg + 0x01) & 0x10)
data |= 0x70000000;
ram_mask(fuc, 0x10f604, 0x70000300, data);
data = (nv_ro08(bios, timing + 0x30) & 0x07) << 28;
if (nv_ro08(bios, ramcfg + 0x01) & 0x01)
data |= 0x00000100;
ram_mask(fuc, 0x10f614, 0x70000000, data);
data = (nv_ro08(bios, timing + 0x30) & 0x07) << 28;
if (nv_ro08(bios, ramcfg + 0x01) & 0x01)
data |= 0x00000100;
ram_mask(fuc, 0x10f614, 0x70000000, data);
data = (nv_ro08(bios, timing + 0x30) & 0x07) << 28;
if (nv_ro08(bios, ramcfg + 0x01) & 0x02)
data |= 0x00000100;
ram_mask(fuc, 0x10f610, 0x70000000, data);
data = (nv_ro08(bios, timing + 0x30) & 0x07) << 28;
if (nv_ro08(bios, ramcfg + 0x01) & 0x02)
data |= 0x00000100;
ram_mask(fuc, 0x10f610, 0x70000000, data);
}
mask = 0x33f00000;
data = 0x00000000;