diff options
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 62 | ||||
| -rw-r--r-- | drivers/gpu/host1x/job.c | 22 | ||||
| -rw-r--r-- | include/linux/host1x.h | 15 |
3 files changed, 64 insertions, 35 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 5cba5e736130..59736bb810cd 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -132,6 +132,45 @@ host1x_bo_lookup(struct drm_device *drm, struct drm_file *file, u32 handle) return &bo->base; } +static int host1x_reloc_copy_from_user(struct host1x_reloc *dest, + struct drm_tegra_reloc __user *src, + struct drm_device *drm, + struct drm_file *file) +{ + u32 cmdbuf, target; + int err; + + err = get_user(cmdbuf, &src->cmdbuf.handle); + if (err < 0) + return err; + + err = get_user(dest->cmdbuf.offset, &src->cmdbuf.offset); + if (err < 0) + return err; + + err = get_user(target, &src->target.handle); + if (err < 0) + return err; + + err = get_user(dest->target.offset, &src->cmdbuf.offset); + if (err < 0) + return err; + + err = get_user(dest->shift, &src->shift); + if (err < 0) + return err; + + dest->cmdbuf.bo = host1x_bo_lookup(drm, file, cmdbuf); + if (!dest->cmdbuf.bo) + return -ENOENT; + + dest->target.bo = host1x_bo_lookup(drm, file, target); + if (!dest->target.bo) + return -ENOENT; + + return 0; +} + int tegra_drm_submit(struct tegra_drm_context *context, struct drm_tegra_submit *args, struct drm_device *drm, struct drm_file *file) @@ -184,26 +223,13 @@ int tegra_drm_submit(struct tegra_drm_context *context, cmdbufs++; } - if (copy_from_user(job->relocarray, relocs, - sizeof(*relocs) * num_relocs)) { - err = -EFAULT; - goto fail; - } - + /* copy and resolve relocations from submit */ while (num_relocs--) { - struct host1x_reloc *reloc = &job->relocarray[num_relocs]; - struct host1x_bo *cmdbuf, *target; - - cmdbuf = host1x_bo_lookup(drm, file, (u32)reloc->cmdbuf); - target = host1x_bo_lookup(drm, file, (u32)reloc->target); - - reloc->cmdbuf = cmdbuf; - reloc->target = target; - - if (!reloc->target || !reloc->cmdbuf) { - err = -ENOENT; + err = host1x_reloc_copy_from_user(&job->relocarray[num_relocs], + &relocs[num_relocs], drm, + file); + if (err < 0) goto fail; - } } if (copy_from_user(job->waitchk, waitchks, diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c index 112f27e51bc7..63bd63f3c7df 100644 --- a/drivers/gpu/host1x/job.c +++ b/drivers/gpu/host1x/job.c @@ -185,16 +185,16 @@ static unsigned int pin_job(struct host1x_job *job) struct sg_table *sgt; dma_addr_t phys_addr; - reloc->target = host1x_bo_get(reloc->target); - if (!reloc->target) + reloc->target.bo = host1x_bo_get(reloc->target.bo); + if (!reloc->target.bo) goto unpin; - phys_addr = host1x_bo_pin(reloc->target, &sgt); + phys_addr = host1x_bo_pin(reloc->target.bo, &sgt); if (!phys_addr) goto unpin; job->addr_phys[job->num_unpins] = phys_addr; - job->unpins[job->num_unpins].bo = reloc->target; + job->unpins[job->num_unpins].bo = reloc->target.bo; job->unpins[job->num_unpins].sgt = sgt; job->num_unpins++; } @@ -235,21 +235,21 @@ static unsigned int do_relocs(struct host1x_job *job, struct host1x_bo *cmdbuf) for (i = 0; i < job->num_relocs; i++) { struct host1x_reloc *reloc = &job->relocarray[i]; u32 reloc_addr = (job->reloc_addr_phys[i] + - reloc->target_offset) >> reloc->shift; + reloc->target.offset) >> reloc->shift; u32 *target; /* skip all other gathers */ - if (cmdbuf != reloc->cmdbuf) + if (cmdbuf != reloc->cmdbuf.bo) continue; - if (last_page != reloc->cmdbuf_offset >> PAGE_SHIFT) { + if (last_page != reloc->cmdbuf.offset >> PAGE_SHIFT) { if (cmdbuf_page_addr) host1x_bo_kunmap(cmdbuf, last_page, cmdbuf_page_addr); cmdbuf_page_addr = host1x_bo_kmap(cmdbuf, - reloc->cmdbuf_offset >> PAGE_SHIFT); - last_page = reloc->cmdbuf_offset >> PAGE_SHIFT; + reloc->cmdbuf.offset >> PAGE_SHIFT); + last_page = reloc->cmdbuf.offset >> PAGE_SHIFT; if (unlikely(!cmdbuf_page_addr)) { pr_err("Could not map cmdbuf for relocation\n"); @@ -257,7 +257,7 @@ static unsigned int do_relocs(struct host1x_job *job, struct host1x_bo *cmdbuf) } } - target = cmdbuf_page_addr + (reloc->cmdbuf_offset & ~PAGE_MASK); + target = cmdbuf_page_addr + (reloc->cmdbuf.offset & ~PAGE_MASK); *target = reloc_addr; } @@ -272,7 +272,7 @@ static bool check_reloc(struct host1x_reloc *reloc, struct host1x_bo *cmdbuf, { offset *= sizeof(u32); - if (reloc->cmdbuf != cmdbuf || reloc->cmdbuf_offset != offset) + if (reloc->cmdbuf.bo != cmdbuf || reloc->cmdbuf.offset != offset) return false; return true; diff --git a/include/linux/host1x.h b/include/linux/host1x.h index d2b52999e771..bb9840fd1e18 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -164,12 +164,15 @@ int host1x_job_submit(struct host1x_job *job); */ struct host1x_reloc { - struct host1x_bo *cmdbuf; - u32 cmdbuf_offset; - struct host1x_bo *target; - u32 target_offset; - u32 shift; - u32 pad; + struct { + struct host1x_bo *bo; + unsigned long offset; + } cmdbuf; + struct { + struct host1x_bo *bo; + unsigned long offset; + } target; + unsigned long shift; }; struct host1x_job { |