1 files changed, 145 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/dispnv50/curs507a.c b/drivers/gpu/drm/nouveau/dispnv50/curs507a.c
new file mode 100644
index 000000000000..291c08117ab6
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/dispnv50/curs507a.c
@@ -0,0 +1,145 @@
+/*
+ * 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 "curs.h"
+#include "core.h"
+#include "head.h"
+
+#include <nvif/cl507a.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_plane_helper.h>
+
+static void
+curs507a_update(struct nv50_wndw *wndw, u32 *interlock)
+{
+        nvif_wr32(&wndw->wimm.base.user, 0x0080, 0x00000000);
+}
+
+static void
+curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
+{
+        nvif_wr32(&wndw->wimm.base.user, 0x0084, asyw->point.y << 16 |
+                                                 asyw->point.x);
+}
+
+const struct nv50_wimm_func
+curs507a = {
+        .point = curs507a_point,
+        .update = curs507a_update,
+};
+
+static void
+curs507a_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh,
+                 struct nv50_wndw_atom *asyw)
+{
+        u32 handle = nv50_disp(wndw->plane.dev)->core->chan.vram.handle;
+        u32 offset = asyw->image.offset[0];
+        if (asyh->curs.handle != handle || asyh->curs.offset != offset) {
+                asyh->curs.handle = handle;
+                asyh->curs.offset = offset;
+                asyh->set.curs = asyh->curs.visible;
+        }
+}
+
+static void
+curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
+                 struct nv50_head_atom *asyh)
+{
+        asyh->curs.visible = false;
+}
+
+static int
+curs507a_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
+                 struct nv50_head_atom *asyh)
+{
+        struct nv50_head *head = nv50_head(asyw->state.crtc);
+        int ret;
+
+        ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state,
+                                                  DRM_PLANE_HELPER_NO_SCALING,
+                                                  DRM_PLANE_HELPER_NO_SCALING,
+                                                  true, true);
+        asyh->curs.visible = asyw->state.visible;
+        if (ret || !asyh->curs.visible)
+                return ret;
+
+        if (asyw->image.w != asyw->image.h)
+                return -EINVAL;
+
+        ret = head->func->curs_layout(head, asyw, asyh);
+        if (ret)
+                return ret;
+
+        return head->func->curs_format(head, asyw, asyh);
+}
+
+static const u32
+curs507a_format[] = {
+        DRM_FORMAT_ARGB8888,
+        0
+};
+
+static const struct nv50_wndw_func
+curs507a_wndw = {
+        .acquire = curs507a_acquire,
+        .release = curs507a_release,
+        .prepare = curs507a_prepare,
+};
+
+int
+curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm,
+              int head, s32 oclass, u32 interlock_data,
+              struct nv50_wndw **pwndw)
+{
+        struct nv50_disp_cursor_v0 args = {
+                .head = head,
+        };
+        struct nv50_disp *disp = nv50_disp(drm->dev);
+        struct nv50_wndw *wndw;
+        int ret;
+
+        ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR,
+                             "curs", head, curs507a_format, BIT(head),
+                             NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw);
+        if (*pwndw = wndw, ret)
+                return ret;
+
+        ret = nvif_object_init(&disp->disp->object, 0, oclass, &args,
+                               sizeof(args), &wndw->wimm.base.user);
+        if (ret) {
+                NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret);
+                return ret;
+        }
+
+        nvif_object_map(&wndw->wimm.base.user, NULL, 0);
+        wndw->immd = func;
+        wndw->ctxdma.parent = &disp->core->chan.base.user;
+        return 0;
+}
+
+int
+curs507a_new(struct nouveau_drm *drm, int head, s32 oclass,
+             struct nv50_wndw **pwndw)
+{
+        return curs507a_new_(&curs507a, drm, head, oclass,
+                             0x00000001 << (head * 8), pwndw);
+}