From 49a3f51dfeeecb52c5aa28c5cb9592fe5e39bf95 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Tue, 3 Nov 2020 10:30:11 +0100 Subject: drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch replaces the vmap/vunmap's use of raw pointers in GEM object functions with instances of struct dma_buf_map. GEM backends are converted as well. For most of them, this simply changes the returned type. TTM-based drivers now return information about the location of the memory, either system or I/O memory. GEM VRAM helpers and qxl now use ttm_bo_vmap() et al. Amdgpu, nouveau and radeon use drm_gem_ttm_vmap() et al instead of implementing their own vmap callbacks. v7: * init QXL cursor to mapped BO buffer (kernel test robot) v5: * update vkms after switch to shmem v4: * use ttm_bo_vmap(), drm_gem_ttm_vmap(), et al. (Daniel, Christian) * fix a trailing { in drm_gem_vmap() * remove several empty functions instead of converting them (Daniel) * comment uses of raw pointers with a TODO (Daniel) * TODO list: convert more helpers to use struct dma_buf_map Signed-off-by: Thomas Zimmermann Acked-by: Christian König Tested-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20201103093015.1063-7-tzimmermann@suse.de --- drivers/gpu/drm/lima/lima_sched.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/drm/lima/lima_sched.c') diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c index dc6df9e9a40d..a070a85f8f36 100644 --- a/drivers/gpu/drm/lima/lima_sched.c +++ b/drivers/gpu/drm/lima/lima_sched.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 OR MIT /* Copyright 2017-2019 Qiang Yu */ +#include #include #include #include @@ -303,6 +304,8 @@ static void lima_sched_build_error_task_list(struct lima_sched_task *task) struct lima_dump_chunk_buffer *buffer_chunk; u32 size, task_size, mem_size; int i; + struct dma_buf_map map; + int ret; mutex_lock(&dev->error_task_list_lock); @@ -388,15 +391,15 @@ static void lima_sched_build_error_task_list(struct lima_sched_task *task) } else { buffer_chunk->size = lima_bo_size(bo); - data = drm_gem_shmem_vmap(&bo->base.base); - if (IS_ERR_OR_NULL(data)) { + ret = drm_gem_shmem_vmap(&bo->base.base, &map); + if (ret) { kvfree(et); goto out; } - memcpy(buffer_chunk + 1, data, buffer_chunk->size); + memcpy(buffer_chunk + 1, map.vaddr, buffer_chunk->size); - drm_gem_shmem_vunmap(&bo->base.base, data); + drm_gem_shmem_vunmap(&bo->base.base, &map); } buffer_chunk = (void *)(buffer_chunk + 1) + buffer_chunk->size; -- cgit v1.2.3