diff options
| author | Karol Herbst <karolherbst@gmail.com> | 2016-07-12 21:36:10 +0200 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2016-10-12 09:29:18 +0200 |
| commit | 380b1cadb0ef26165ba4b15fcf1bd2f1d82d0c29 (patch) | |
| tree | 1744dba182d50bd14f70a33aec55a909a59d025c /drivers/gpu/drm/nouveau/nvkm/subdev/fb | |
| parent | drm/nouveau/clk: Fix potential NULL pointer access when there is no fb subdev (diff) | |
| download | linux-380b1cadb0ef26165ba4b15fcf1bd2f1d82d0c29.tar.xz linux-380b1cadb0ef26165ba4b15fcf1bd2f1d82d0c29.zip | |
drm/nouveau/fb/ramgk104: Touch 0x62c000 only when there is a display engine
Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Tested-by: Aidan Epstein <aidan@jmad.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk104.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk104.c index 1fa3ade468ae..93b30d92776c 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk104.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk104.c @@ -259,7 +259,9 @@ gk104_ram_calc_gddr5(struct gk104_ram *ram, u32 freq) ram_mask(fuc, 0x10f808, 0x40000000, 0x40000000); ram_block(fuc); - ram_wr32(fuc, 0x62c000, 0x0f0f0000); + + if (nvkm_device_engine(ram->base.fb->subdev.device, NVKM_ENGINE_DISP)) + ram_wr32(fuc, 0x62c000, 0x0f0f0000); /* MR1: turn termination on early, for some reason.. */ if ((ram->base.mr[1] & 0x03c) != 0x030) { @@ -658,7 +660,9 @@ gk104_ram_calc_gddr5(struct gk104_ram *ram, u32 freq) gk104_ram_train(fuc, 0x80020000, 0x01000000); ram_unblock(fuc); - ram_wr32(fuc, 0x62c000, 0x0f0f0f00); + + if (nvkm_device_engine(ram->base.fb->subdev.device, NVKM_ENGINE_DISP)) + ram_wr32(fuc, 0x62c000, 0x0f0f0f00); if (next->bios.rammap_11_08_01) data = 0x00000800; @@ -706,7 +710,9 @@ gk104_ram_calc_sddr3(struct gk104_ram *ram, u32 freq) ram_mask(fuc, 0x10f808, 0x40000000, 0x40000000); ram_block(fuc); - ram_wr32(fuc, 0x62c000, 0x0f0f0000); + + if (nvkm_device_engine(ram->base.fb->subdev.device, NVKM_ENGINE_DISP)) + ram_wr32(fuc, 0x62c000, 0x0f0f0000); if (vc == 1 && ram_have(fuc, gpio2E)) { u32 temp = ram_mask(fuc, gpio2E, 0x3000, fuc->r_func2E[1]); @@ -936,7 +942,9 @@ gk104_ram_calc_sddr3(struct gk104_ram *ram, u32 freq) ram_nsec(fuc, 1000); ram_unblock(fuc); - ram_wr32(fuc, 0x62c000, 0x0f0f0f00); + + if (nvkm_device_engine(ram->base.fb->subdev.device, NVKM_ENGINE_DISP)) + ram_wr32(fuc, 0x62c000, 0x0f0f0f00); if (next->bios.rammap_11_08_01) data = 0x00000800; |