diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c b/drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c new file mode 100644 index 000000000000..ba89f1a5fcfa --- /dev/null +++ b/drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c @@ -0,0 +1,133 @@ +/* + * Copyright 2018 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. + */ +#include "wndw.h" +#include "atom.h" + +#include <drm/drm_atomic_helper.h> +#include <drm/drm_plane_helper.h> +#include <nouveau_bo.h> + +#include <nvif/clc37e.h> + +static void +wndwc57e_ilut_clr(struct nv50_wndw *wndw) +{ + u32 *push; + if ((push = evo_wait(&wndw->wndw, 2))) { + evo_mthd(push, 0x0444, 1); + evo_data(push, 0x00000000); + evo_kick(push, &wndw->wndw); + } +} + +static void +wndwc57e_ilut_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw) +{ + u32 *push; + if ((push = evo_wait(&wndw->wndw, 4))) { + evo_mthd(push, 0x0440, 3); + evo_data(push, asyw->xlut.i.size << 8 | + asyw->xlut.i.mode << 2 | + asyw->xlut.i.output_mode); + evo_data(push, asyw->xlut.handle); + evo_data(push, asyw->xlut.i.offset >> 8); + evo_kick(push, &wndw->wndw); + } +} + +static u16 +fixedU0_16_FP16(u16 fixed) +{ + int sign = 0, exp = 0, man = 0; + if (fixed) { + while (--exp && !(fixed & 0x8000)) + fixed <<= 1; + man = ((fixed << 1) & 0xffc0) >> 6; + exp += 15; + } + return (sign << 15) | (exp << 10) | man; +} + +static void +wndwc57e_ilut_load(struct drm_color_lut *in, int size, void __iomem *mem) +{ + memset_io(mem, 0x00, 0x20); /* VSS header. */ + mem += 0x20; + + for (; size--; in++, mem += 0x08) { + u16 r = fixedU0_16_FP16(drm_color_lut_extract(in-> red, 16)); + u16 g = fixedU0_16_FP16(drm_color_lut_extract(in->green, 16)); + u16 b = fixedU0_16_FP16(drm_color_lut_extract(in-> blue, 16)); + writew(r, mem + 0); + writew(g, mem + 2); + writew(b, mem + 4); + } + + /* INTERPOLATE modes require a "next" entry to interpolate with, + * so we replicate the last entry to deal with this for now. + */ + writew(readw(mem - 8), mem + 0); + writew(readw(mem - 6), mem + 2); + writew(readw(mem - 4), mem + 4); +} + +static void +wndwc57e_ilut(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw) +{ + u16 size = asyw->ilut->length / sizeof(struct drm_color_lut); + if (size == 256) { + asyw->xlut.i.mode = 1; /* DIRECT8. */ + } else { + asyw->xlut.i.mode = 2; /* DIRECT10. */ + size = 1024; + } + asyw->xlut.i.size = 4 /* VSS header. */ + size + 1 /* Entries. */; + asyw->xlut.i.output_mode = 0; /* INTERPOLATE_DISABLE. */ + asyw->xlut.i.load = wndwc57e_ilut_load; +} + +static const struct nv50_wndw_func +wndwc57e = { + .acquire = wndwc37e_acquire, + .release = wndwc37e_release, + .sema_set = wndwc37e_sema_set, + .sema_clr = wndwc37e_sema_clr, + .ntfy_set = wndwc37e_ntfy_set, + .ntfy_clr = wndwc37e_ntfy_clr, + .ntfy_reset = corec37d_ntfy_init, + .ntfy_wait_begun = base507c_ntfy_wait_begun, + .ilut = wndwc57e_ilut, + .ilut_identity = true, + .xlut_set = wndwc57e_ilut_set, + .xlut_clr = wndwc57e_ilut_clr, + .image_set = wndwc37e_image_set, + .image_clr = wndwc37e_image_clr, + .update = wndwc37e_update, +}; + +int +wndwc57e_new(struct nouveau_drm *drm, enum drm_plane_type type, int index, + s32 oclass, struct nv50_wndw **pwndw) +{ + return wndwc37e_new_(&wndwc57e, drm, type, index, oclass, + BIT(index >> 1), pwndw); +} |