ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/drm/msm/msm_fb.c b/marvell/linux/drivers/gpu/drm/msm/msm_fb.c
new file mode 100644
index 0000000..37674e8
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/msm/msm_fb.c
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ */
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_damage_helper.h>
+#include <drm/drm_file.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_probe_helper.h>
+
+#include "msm_drv.h"
+#include "msm_kms.h"
+#include "msm_gem.h"
+
+struct msm_framebuffer {
+ struct drm_framebuffer base;
+ const struct msm_format *format;
+};
+#define to_msm_framebuffer(x) container_of(x, struct msm_framebuffer, base)
+
+static struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
+ const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
+
+static const struct drm_framebuffer_funcs msm_framebuffer_funcs = {
+ .create_handle = drm_gem_fb_create_handle,
+ .destroy = drm_gem_fb_destroy,
+ .dirty = drm_atomic_helper_dirtyfb,
+};
+
+#ifdef CONFIG_DEBUG_FS
+void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m)
+{
+ int i, n = fb->format->num_planes;
+
+ seq_printf(m, "fb: %dx%d@%4.4s (%2d, ID:%d)\n",
+ fb->width, fb->height, (char *)&fb->format->format,
+ drm_framebuffer_read_refcount(fb), fb->base.id);
+
+ for (i = 0; i < n; i++) {
+ seq_printf(m, " %d: offset=%d pitch=%d, obj: ",
+ i, fb->offsets[i], fb->pitches[i]);
+ msm_gem_describe(fb->obj[i], m);
+ }
+}
+#endif
+
+/* prepare/pin all the fb's bo's for scanout. Note that it is not valid
+ * to prepare an fb more multiple different initiator 'id's. But that
+ * should be fine, since only the scanout (mdpN) side of things needs
+ * this, the gpu doesn't care about fb's.
+ */
+int msm_framebuffer_prepare(struct drm_framebuffer *fb,
+ struct msm_gem_address_space *aspace)
+{
+ int ret, i, n = fb->format->num_planes;
+ uint64_t iova;
+
+ for (i = 0; i < n; i++) {
+ ret = msm_gem_get_and_pin_iova(fb->obj[i], aspace, &iova);
+ DBG("FB[%u]: iova[%d]: %08llx (%d)", fb->base.id, i, iova, ret);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+void msm_framebuffer_cleanup(struct drm_framebuffer *fb,
+ struct msm_gem_address_space *aspace)
+{
+ int i, n = fb->format->num_planes;
+
+ for (i = 0; i < n; i++)
+ msm_gem_unpin_iova(fb->obj[i], aspace);
+}
+
+uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb,
+ struct msm_gem_address_space *aspace, int plane)
+{
+ if (!fb->obj[plane])
+ return 0;
+ return msm_gem_iova(fb->obj[plane], aspace) + fb->offsets[plane];
+}
+
+struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane)
+{
+ return drm_gem_fb_get_obj(fb, plane);
+}
+
+const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb)
+{
+ struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
+ return msm_fb->format;
+}
+
+struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
+ struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd)
+{
+ const struct drm_format_info *info = drm_get_format_info(dev,
+ mode_cmd);
+ struct drm_gem_object *bos[4] = {0};
+ struct drm_framebuffer *fb;
+ int ret, i, n = info->num_planes;
+
+ for (i = 0; i < n; i++) {
+ bos[i] = drm_gem_object_lookup(file, mode_cmd->handles[i]);
+ if (!bos[i]) {
+ ret = -ENXIO;
+ goto out_unref;
+ }
+ }
+
+ fb = msm_framebuffer_init(dev, mode_cmd, bos);
+ if (IS_ERR(fb)) {
+ ret = PTR_ERR(fb);
+ goto out_unref;
+ }
+
+ return fb;
+
+out_unref:
+ for (i = 0; i < n; i++)
+ drm_gem_object_put_unlocked(bos[i]);
+ return ERR_PTR(ret);
+}
+
+static struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
+ const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
+{
+ const struct drm_format_info *info = drm_get_format_info(dev,
+ mode_cmd);
+ struct msm_drm_private *priv = dev->dev_private;
+ struct msm_kms *kms = priv->kms;
+ struct msm_framebuffer *msm_fb = NULL;
+ struct drm_framebuffer *fb;
+ const struct msm_format *format;
+ int ret, i, n;
+
+ DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%4.4s)",
+ dev, mode_cmd, mode_cmd->width, mode_cmd->height,
+ (char *)&mode_cmd->pixel_format);
+
+ n = info->num_planes;
+ format = kms->funcs->get_format(kms, mode_cmd->pixel_format,
+ mode_cmd->modifier[0]);
+ if (!format) {
+ DRM_DEV_ERROR(dev->dev, "unsupported pixel format: %4.4s\n",
+ (char *)&mode_cmd->pixel_format);
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ msm_fb = kzalloc(sizeof(*msm_fb), GFP_KERNEL);
+ if (!msm_fb) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ fb = &msm_fb->base;
+
+ msm_fb->format = format;
+
+ if (n > ARRAY_SIZE(fb->obj)) {
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ for (i = 0; i < n; i++) {
+ unsigned int width = mode_cmd->width / (i ? info->hsub : 1);
+ unsigned int height = mode_cmd->height / (i ? info->vsub : 1);
+ unsigned int min_size;
+
+ min_size = (height - 1) * mode_cmd->pitches[i]
+ + width * info->cpp[i]
+ + mode_cmd->offsets[i];
+
+ if (bos[i]->size < min_size) {
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ msm_fb->base.obj[i] = bos[i];
+ }
+
+ drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
+
+ ret = drm_framebuffer_init(dev, fb, &msm_framebuffer_funcs);
+ if (ret) {
+ DRM_DEV_ERROR(dev->dev, "framebuffer init failed: %d\n", ret);
+ goto fail;
+ }
+
+ DBG("create: FB ID: %d (%p)", fb->base.id, fb);
+
+ return fb;
+
+fail:
+ kfree(msm_fb);
+
+ return ERR_PTR(ret);
+}
+
+struct drm_framebuffer *
+msm_alloc_stolen_fb(struct drm_device *dev, int w, int h, int p, uint32_t format)
+{
+ struct drm_mode_fb_cmd2 mode_cmd = {
+ .pixel_format = format,
+ .width = w,
+ .height = h,
+ .pitches = { p },
+ };
+ struct drm_gem_object *bo;
+ struct drm_framebuffer *fb;
+ int size;
+
+ /* allocate backing bo */
+ size = mode_cmd.pitches[0] * mode_cmd.height;
+ DBG("allocating %d bytes for fb %d", size, dev->primary->index);
+ bo = msm_gem_new(dev, size, MSM_BO_SCANOUT | MSM_BO_WC | MSM_BO_STOLEN);
+ if (IS_ERR(bo)) {
+ dev_warn(dev->dev, "could not allocate stolen bo\n");
+ /* try regular bo: */
+ bo = msm_gem_new(dev, size, MSM_BO_SCANOUT | MSM_BO_WC);
+ }
+ if (IS_ERR(bo)) {
+ DRM_DEV_ERROR(dev->dev, "failed to allocate buffer object\n");
+ return ERR_CAST(bo);
+ }
+
+ msm_gem_object_set_name(bo, "stolenfb");
+
+ fb = msm_framebuffer_init(dev, &mode_cmd, &bo);
+ if (IS_ERR(fb)) {
+ DRM_DEV_ERROR(dev->dev, "failed to allocate fb\n");
+ /* note: if fb creation failed, we can't rely on fb destroy
+ * to unref the bo:
+ */
+ drm_gem_object_put_unlocked(bo);
+ return ERR_CAST(fb);
+ }
+
+ return fb;
+}