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drm/nve0/fb/gddr5: fix an assumption of sane memory controller layout 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
hifive-unleashed-5.1
Ben Skeggs 2013-11-26 15:39:15 +10:00
parent 2daaf5b0e4
commit 5905439224
1 changed files with 10 additions and 7 deletions
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17
drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
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@ -134,17 +134,20 @@ struct nve0_ram {
* GDDR5
******************************************************************************/
static void
train(struct nve0_ramfuc *fuc, u32 magic)
nve0_ram_train(struct nve0_ramfuc *fuc, u32 magic)
{
struct nve0_ram *ram = container_of(fuc, typeof(*ram), fuc);
struct nouveau_fb *pfb = nouveau_fb(ram);
const int mc = nv_rd32(pfb, 0x02243c);
int i;
u32 part = nv_rd32(pfb, 0x022438), i;
u32 mask = nv_rd32(pfb, 0x022554);
u32 addr = 0x110974;
ram_mask(fuc, 0x10f910, 0xbc0e0000, magic);
ram_mask(fuc, 0x10f914, 0xbc0e0000, magic);
for (i = 0; i < mc; i++) {
const u32 addr = 0x110974 + (i * 0x1000);
for (i = 0; (magic & 0x80000000) && i < part; addr += 0x1000, i++) {
if (mask & (1 << i))
continue;
ram_wait(fuc, addr, 0x0000000f, 0x00000000, 500000);
}
}
@ -518,7 +521,7 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
if ((nv_ro08(bios, ramcfg + 0x08) & 0x10) && (ram->mode == 2) /*XXX*/) {
u32 temp = ram_mask(fuc, 0x10f294, 0xff000000, 0x24000000);
train(fuc, 0xa4010000); /*XXX*/
nve0_ram_train(fuc, 0xa4010000); /*XXX*/
ram_nsec(fuc, 1000);
ram_wr32(fuc, 0x10f294, temp);
}
@ -572,7 +575,7 @@ nve0_ram_calc_gddr5(struct nouveau_fb *pfb, u32 freq)
} else {
data = 0xa40e0000;
}
train(fuc, data);
nve0_ram_train(fuc, data);
ram_nsec(fuc, 1000);
if (ram->mode == 2) { /*XXX*/