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path: root/drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c')
-rw-r--r--drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c133
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);
+}