From b76f15295eadd37405cdb4855351a6ceda0bd1b1 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Sun, 10 Aug 2014 04:10:28 +1000 Subject: [PATCH] drm/nouveau/disp: allow user direct access to channel control registers Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/engine/disp/nv50.c | 15 +++++++++++++++ drivers/gpu/drm/nouveau/core/engine/disp/nv50.h | 1 + drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c | 5 +++++ drivers/gpu/drm/nouveau/nv50_display.c | 4 +++- 4 files changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c index 8dafd4106568..858386bdd4bd 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c @@ -82,6 +82,16 @@ nv50_disp_chan_destroy(struct nv50_disp_chan *chan) nouveau_namedb_destroy(&chan->base); } +int +nv50_disp_chan_map(struct nouveau_object *object, u64 *addr, u32 *size) +{ + struct nv50_disp_chan *chan = (void *)object; + *addr = nv_device_resource_start(nv_device(object), 0) + + 0x640000 + (chan->chid * 0x1000); + *size = 0x001000; + return 0; +} + u32 nv50_disp_chan_rd32(struct nouveau_object *object, u64 addr) { @@ -496,6 +506,7 @@ nv50_disp_mast_ofuncs = { .base.dtor = nv50_disp_dmac_dtor, .base.init = nv50_disp_mast_init, .base.fini = nv50_disp_mast_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 0, @@ -596,6 +607,7 @@ nv50_disp_sync_ofuncs = { .base.dtor = nv50_disp_dmac_dtor, .base.init = nv50_disp_dmac_init, .base.fini = nv50_disp_dmac_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 1, @@ -684,6 +696,7 @@ nv50_disp_ovly_ofuncs = { .base.dtor = nv50_disp_dmac_dtor, .base.init = nv50_disp_dmac_init, .base.fini = nv50_disp_dmac_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 3, @@ -800,6 +813,7 @@ nv50_disp_oimm_ofuncs = { .base.dtor = nv50_disp_pioc_dtor, .base.init = nv50_disp_pioc_init, .base.fini = nv50_disp_pioc_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 5, @@ -846,6 +860,7 @@ nv50_disp_curs_ofuncs = { .base.dtor = nv50_disp_pioc_dtor, .base.init = nv50_disp_pioc_init, .base.fini = nv50_disp_pioc_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 7, diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h index 9be9b45e3c5e..8ab14461f70c 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h @@ -116,6 +116,7 @@ struct nv50_disp_chan { int chid; }; +int nv50_disp_chan_map(struct nouveau_object *, u64 *, u32 *); u32 nv50_disp_chan_rd32(struct nouveau_object *, u64); void nv50_disp_chan_wr32(struct nouveau_object *, u64, u32); diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c index f64647b8b8d0..9c2ac1390ef6 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c @@ -326,6 +326,7 @@ nvd0_disp_mast_ofuncs = { .base.dtor = nv50_disp_dmac_dtor, .base.init = nvd0_disp_mast_init, .base.fini = nvd0_disp_mast_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 0, @@ -418,6 +419,7 @@ nvd0_disp_sync_ofuncs = { .base.dtor = nv50_disp_dmac_dtor, .base.init = nvd0_disp_dmac_init, .base.fini = nvd0_disp_dmac_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 1, @@ -497,6 +499,7 @@ nvd0_disp_ovly_ofuncs = { .base.dtor = nv50_disp_dmac_dtor, .base.init = nvd0_disp_dmac_init, .base.fini = nvd0_disp_dmac_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 5, @@ -567,6 +570,7 @@ nvd0_disp_oimm_ofuncs = { .base.dtor = nv50_disp_pioc_dtor, .base.init = nvd0_disp_pioc_init, .base.fini = nvd0_disp_pioc_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 9, @@ -582,6 +586,7 @@ nvd0_disp_curs_ofuncs = { .base.dtor = nv50_disp_pioc_dtor, .base.init = nvd0_disp_pioc_init, .base.fini = nvd0_disp_pioc_fini, + .base.map = nv50_disp_chan_map, .base.rd32 = nv50_disp_chan_rd32, .base.wr32 = nv50_disp_chan_wr32, .chid = 13, diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 82d6b4f6a5c2..9e9fa585b304 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -69,8 +69,10 @@ nv50_chan_create(struct nvif_object *disp, const u32 *oclass, u8 head, int ret = nvif_object_init(disp, NULL, (oclass[0] << 16) | head, oclass[0], data, size, &chan->user); - if (oclass++, ret == 0) + if (oclass++, ret == 0) { + nvif_object_map(&chan->user); return ret; + } } return -ENOSYS; }