diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c new file mode 100644 index 000000000..876b14549 --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c @@ -0,0 +1,100 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ +#include "dmacnv50.h" +#include "rootnv50.h" + +#include <core/ramht.h> +#include <subdev/timer.h> + +int +gf119_disp_dmac_bind(struct nv50_disp_dmac *chan, + struct nvkm_object *object, u32 handle) +{ + return nvkm_ramht_insert(chan->base.root->ramht, object, + chan->base.chid, -9, handle, + chan->base.chid << 27 | 0x00000001); +} + +static void +gf119_disp_dmac_fini(struct nv50_disp_dmac *chan) +{ + struct nv50_disp *disp = chan->base.root->disp; + struct nvkm_subdev *subdev = &disp->base.engine.subdev; + struct nvkm_device *device = subdev->device; + int chid = chan->base.chid; + + /* deactivate channel */ + nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00001010, 0x00001000); + nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000003, 0x00000000); + if (nvkm_msec(device, 2000, + if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x001e0000)) + break; + ) < 0) { + nvkm_error(subdev, "ch %d fini: %08x\n", chid, + nvkm_rd32(device, 0x610490 + (chid * 0x10))); + } + + /* disable error reporting and completion notification */ + nvkm_mask(device, 0x610090, 0x00000001 << chid, 0x00000000); + nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000000); +} + +static int +gf119_disp_dmac_init(struct nv50_disp_dmac *chan) +{ + struct nv50_disp *disp = chan->base.root->disp; + struct nvkm_subdev *subdev = &disp->base.engine.subdev; + struct nvkm_device *device = subdev->device; + int chid = chan->base.chid; + + /* enable error reporting */ + nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000001 << chid); + + /* initialise channel for dma command submission */ + nvkm_wr32(device, 0x610494 + (chid * 0x0010), chan->push); + nvkm_wr32(device, 0x610498 + (chid * 0x0010), 0x00010000); + nvkm_wr32(device, 0x61049c + (chid * 0x0010), 0x00000001); + nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000010, 0x00000010); + nvkm_wr32(device, 0x640000 + (chid * 0x1000), 0x00000000); + nvkm_wr32(device, 0x610490 + (chid * 0x0010), 0x00000013); + + /* wait for it to go inactive */ + if (nvkm_msec(device, 2000, + if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x80000000)) + break; + ) < 0) { + nvkm_error(subdev, "ch %d init: %08x\n", chid, + nvkm_rd32(device, 0x610490 + (chid * 0x10))); + return -EBUSY; + } + + return 0; +} + +const struct nv50_disp_dmac_func +gf119_disp_dmac_func = { + .init = gf119_disp_dmac_init, + .fini = gf119_disp_dmac_fini, + .bind = gf119_disp_dmac_bind, +}; |