1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2018 Red Hat Inc.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Permission is hereby granted, free of charge, to any person obtaining a
5*4882a593Smuzhiyun * copy of this software and associated documentation files (the "Software"),
6*4882a593Smuzhiyun * to deal in the Software without restriction, including without limitation
7*4882a593Smuzhiyun * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*4882a593Smuzhiyun * and/or sell copies of the Software, and to permit persons to whom the
9*4882a593Smuzhiyun * Software is furnished to do so, subject to the following conditions:
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * The above copyright notice and this permission notice shall be included in
12*4882a593Smuzhiyun * all copies or substantial portions of the Software.
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15*4882a593Smuzhiyun * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16*4882a593Smuzhiyun * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17*4882a593Smuzhiyun * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18*4882a593Smuzhiyun * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19*4882a593Smuzhiyun * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20*4882a593Smuzhiyun * OTHER DEALINGS IN THE SOFTWARE.
21*4882a593Smuzhiyun */
22*4882a593Smuzhiyun #include "lut.h"
23*4882a593Smuzhiyun #include "disp.h"
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun #include <drm/drm_color_mgmt.h>
26*4882a593Smuzhiyun #include <drm/drm_mode.h>
27*4882a593Smuzhiyun #include <drm/drm_property.h>
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun #include <nvif/class.h>
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun u32
nv50_lut_load(struct nv50_lut * lut,int buffer,struct drm_property_blob * blob,void (* load)(struct drm_color_lut *,int,void __iomem *))32*4882a593Smuzhiyun nv50_lut_load(struct nv50_lut *lut, int buffer, struct drm_property_blob *blob,
33*4882a593Smuzhiyun void (*load)(struct drm_color_lut *, int, void __iomem *))
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun struct drm_color_lut *in = blob ? blob->data : NULL;
36*4882a593Smuzhiyun void __iomem *mem = lut->mem[buffer].object.map.ptr;
37*4882a593Smuzhiyun const u32 addr = lut->mem[buffer].addr;
38*4882a593Smuzhiyun int i;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun if (!in) {
41*4882a593Smuzhiyun in = kvmalloc_array(1024, sizeof(*in), GFP_KERNEL);
42*4882a593Smuzhiyun if (!WARN_ON(!in)) {
43*4882a593Smuzhiyun for (i = 0; i < 1024; i++) {
44*4882a593Smuzhiyun in[i].red =
45*4882a593Smuzhiyun in[i].green =
46*4882a593Smuzhiyun in[i].blue = (i << 16) >> 10;
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun load(in, 1024, mem);
49*4882a593Smuzhiyun kvfree(in);
50*4882a593Smuzhiyun }
51*4882a593Smuzhiyun } else {
52*4882a593Smuzhiyun load(in, drm_color_lut_size(blob), mem);
53*4882a593Smuzhiyun }
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun return addr;
56*4882a593Smuzhiyun }
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun void
nv50_lut_fini(struct nv50_lut * lut)59*4882a593Smuzhiyun nv50_lut_fini(struct nv50_lut *lut)
60*4882a593Smuzhiyun {
61*4882a593Smuzhiyun int i;
62*4882a593Smuzhiyun for (i = 0; i < ARRAY_SIZE(lut->mem); i++)
63*4882a593Smuzhiyun nvif_mem_dtor(&lut->mem[i]);
64*4882a593Smuzhiyun }
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun int
nv50_lut_init(struct nv50_disp * disp,struct nvif_mmu * mmu,struct nv50_lut * lut)67*4882a593Smuzhiyun nv50_lut_init(struct nv50_disp *disp, struct nvif_mmu *mmu,
68*4882a593Smuzhiyun struct nv50_lut *lut)
69*4882a593Smuzhiyun {
70*4882a593Smuzhiyun const u32 size = disp->disp->object.oclass < GF110_DISP ? 257 : 1025;
71*4882a593Smuzhiyun int i;
72*4882a593Smuzhiyun for (i = 0; i < ARRAY_SIZE(lut->mem); i++) {
73*4882a593Smuzhiyun int ret = nvif_mem_ctor_map(mmu, "kmsLut", NVIF_MEM_VRAM,
74*4882a593Smuzhiyun size * 8, &lut->mem[i]);
75*4882a593Smuzhiyun if (ret)
76*4882a593Smuzhiyun return ret;
77*4882a593Smuzhiyun }
78*4882a593Smuzhiyun return 0;
79*4882a593Smuzhiyun }
80