mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 15:49:17 +07:00
78babc1633
For a5xx the gpu is 64b so we need to change iova to 64b everywhere. On the display side, iova is still 32b so it can ignore the upper bits. (Although all the armv8 devices have an iommu that can map 64b pa to 32b iova.) Signed-off-by: Rob Clark <robdclark@gmail.com>
237 lines
6.2 KiB
C
237 lines
6.2 KiB
C
/*
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "msm_drv.h"
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#include "msm_kms.h"
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#include "drm_crtc.h"
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#include "drm_crtc_helper.h"
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struct msm_framebuffer {
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struct drm_framebuffer base;
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const struct msm_format *format;
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struct drm_gem_object *planes[MAX_PLANE];
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};
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#define to_msm_framebuffer(x) container_of(x, struct msm_framebuffer, base)
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static int msm_framebuffer_create_handle(struct drm_framebuffer *fb,
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struct drm_file *file_priv,
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unsigned int *handle)
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{
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struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
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return drm_gem_handle_create(file_priv,
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msm_fb->planes[0], handle);
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}
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static void msm_framebuffer_destroy(struct drm_framebuffer *fb)
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{
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struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
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int i, n = drm_format_num_planes(fb->pixel_format);
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DBG("destroy: FB ID: %d (%p)", fb->base.id, fb);
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drm_framebuffer_cleanup(fb);
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for (i = 0; i < n; i++) {
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struct drm_gem_object *bo = msm_fb->planes[i];
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drm_gem_object_unreference_unlocked(bo);
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}
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kfree(msm_fb);
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}
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static const struct drm_framebuffer_funcs msm_framebuffer_funcs = {
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.create_handle = msm_framebuffer_create_handle,
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.destroy = msm_framebuffer_destroy,
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};
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#ifdef CONFIG_DEBUG_FS
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void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m)
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{
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struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
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int i, n = drm_format_num_planes(fb->pixel_format);
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seq_printf(m, "fb: %dx%d@%4.4s (%2d, ID:%d)\n",
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fb->width, fb->height, (char *)&fb->pixel_format,
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drm_framebuffer_read_refcount(fb), fb->base.id);
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for (i = 0; i < n; i++) {
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seq_printf(m, " %d: offset=%d pitch=%d, obj: ",
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i, fb->offsets[i], fb->pitches[i]);
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msm_gem_describe(msm_fb->planes[i], m);
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}
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}
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#endif
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/* prepare/pin all the fb's bo's for scanout. Note that it is not valid
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* to prepare an fb more multiple different initiator 'id's. But that
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* should be fine, since only the scanout (mdpN) side of things needs
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* this, the gpu doesn't care about fb's.
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*/
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int msm_framebuffer_prepare(struct drm_framebuffer *fb, int id)
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{
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struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
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int ret, i, n = drm_format_num_planes(fb->pixel_format);
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uint64_t iova;
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for (i = 0; i < n; i++) {
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ret = msm_gem_get_iova(msm_fb->planes[i], id, &iova);
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DBG("FB[%u]: iova[%d]: %08llx (%d)", fb->base.id, i, iova, ret);
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if (ret)
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return ret;
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}
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return 0;
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}
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void msm_framebuffer_cleanup(struct drm_framebuffer *fb, int id)
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{
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struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
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int i, n = drm_format_num_planes(fb->pixel_format);
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for (i = 0; i < n; i++)
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msm_gem_put_iova(msm_fb->planes[i], id);
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}
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uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, int id, int plane)
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{
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struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
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if (!msm_fb->planes[plane])
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return 0;
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return msm_gem_iova(msm_fb->planes[plane], id) + fb->offsets[plane];
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}
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struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane)
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{
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struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
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return msm_fb->planes[plane];
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}
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const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb)
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{
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struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb);
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return msm_fb->format;
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}
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struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
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struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd)
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{
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struct drm_gem_object *bos[4] = {0};
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struct drm_framebuffer *fb;
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int ret, i, n = drm_format_num_planes(mode_cmd->pixel_format);
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for (i = 0; i < n; i++) {
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bos[i] = drm_gem_object_lookup(file, mode_cmd->handles[i]);
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if (!bos[i]) {
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ret = -ENXIO;
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goto out_unref;
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}
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}
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fb = msm_framebuffer_init(dev, mode_cmd, bos);
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if (IS_ERR(fb)) {
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ret = PTR_ERR(fb);
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goto out_unref;
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}
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return fb;
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out_unref:
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for (i = 0; i < n; i++)
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drm_gem_object_unreference_unlocked(bos[i]);
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return ERR_PTR(ret);
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}
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struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
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const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
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{
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struct msm_drm_private *priv = dev->dev_private;
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struct msm_kms *kms = priv->kms;
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struct msm_framebuffer *msm_fb = NULL;
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struct drm_framebuffer *fb;
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const struct msm_format *format;
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int ret, i, n;
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unsigned int hsub, vsub;
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DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%4.4s)",
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dev, mode_cmd, mode_cmd->width, mode_cmd->height,
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(char *)&mode_cmd->pixel_format);
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n = drm_format_num_planes(mode_cmd->pixel_format);
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hsub = drm_format_horz_chroma_subsampling(mode_cmd->pixel_format);
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vsub = drm_format_vert_chroma_subsampling(mode_cmd->pixel_format);
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format = kms->funcs->get_format(kms, mode_cmd->pixel_format);
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if (!format) {
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dev_err(dev->dev, "unsupported pixel format: %4.4s\n",
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(char *)&mode_cmd->pixel_format);
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ret = -EINVAL;
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goto fail;
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}
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msm_fb = kzalloc(sizeof(*msm_fb), GFP_KERNEL);
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if (!msm_fb) {
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ret = -ENOMEM;
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goto fail;
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}
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fb = &msm_fb->base;
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msm_fb->format = format;
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if (n > ARRAY_SIZE(msm_fb->planes)) {
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ret = -EINVAL;
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goto fail;
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}
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for (i = 0; i < n; i++) {
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unsigned int width = mode_cmd->width / (i ? hsub : 1);
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unsigned int height = mode_cmd->height / (i ? vsub : 1);
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unsigned int min_size;
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min_size = (height - 1) * mode_cmd->pitches[i]
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+ width * drm_format_plane_cpp(mode_cmd->pixel_format, i)
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+ mode_cmd->offsets[i];
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if (bos[i]->size < min_size) {
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ret = -EINVAL;
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goto fail;
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}
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msm_fb->planes[i] = bos[i];
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}
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drm_helper_mode_fill_fb_struct(fb, mode_cmd);
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ret = drm_framebuffer_init(dev, fb, &msm_framebuffer_funcs);
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if (ret) {
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dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
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goto fail;
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}
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DBG("create: FB ID: %d (%p)", fb->base.id, fb);
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return fb;
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fail:
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kfree(msm_fb);
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return ERR_PTR(ret);
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}
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