diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2013-11-26 15:39:15 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2014-01-23 13:38:47 +1000 |
| commit | 5905439224043465309e9989bfd9369efb9220ab (patch) | |
| tree | 9b26fe2c42a6f8c119fa338cdd99bd327259f1a1 /drivers/gpu/drm/nouveau | |
| parent | 2daaf5b0e4fbed1fa9524881272c9a956a0aaf78 (diff) | |
drm/nve0/fb/gddr5: fix an assumption of sane memory controller layout
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c index 0fa983ffc4d4..cb03be38446a 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c @@ -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*/ |