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Code Issues Releases Wiki Activity

Short summary of fixes pull:

Browse source 
bridge:
 - select DRM_KMS_HELPER
 
 dma-buf:
 - fix NULL-pointer deref
 
 dp:
 - fix div-by-zero in DP MST unplug code
 
 fbdev:
 - select FB_IOMEM_FOPS for SBus
 
 nouveau:
 - dmem: handle kcalloc() allocation failures
 
 qxl:
 - remove unused variables
 
 rockchip:
 - vop2: remove support for AR30 and AB30 formats
 
 sched:
 - fix NULL-pointer deref
 
 vmwgfx:
 - debugfs: create ttm_resource_manager entry only if needed
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Merge tag 'drm-misc-fixes-2024-03-28' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

bridge:
- select DRM_KMS_HELPER

dma-buf:
- fix NULL-pointer deref

dp:
- fix div-by-zero in DP MST unplug code

fbdev:
- select FB_IOMEM_FOPS for SBus

nouveau:
- dmem: handle kcalloc() allocation failures

qxl:
- remove unused variables

rockchip:
- vop2: remove support for AR30 and AB30 formats

sched:
- fix NULL-pointer deref

vmwgfx:
- debugfs: create ttm_resource_manager entry only if needed

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240328134417.GA8673@localhost.localdomain
This commit is contained in:
Dave Airlie 2024-03-29 05:00:13 +10:00
commit 2f73503e95
9 changed files with 38 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/dma-buf/st-dma-fence-chain.c
View file

@ -84,11 +84,11 @@ static int sanitycheck(void *arg)
return -ENOMEM;
chain = mock_chain(NULL, f, 1);
if (!chain)
if (chain)
dma_fence_enable_sw_signaling(chain);
else
err = -ENOMEM;
dma_fence_enable_sw_signaling(chain);
dma_fence_signal(f);
dma_fence_put(f);

7
drivers/gpu/drm/display/drm_dp_helper.c
View file

@ -4111,6 +4111,13 @@ int drm_dp_bw_overhead(int lane_count, int hactive,
u32 overhead = 1000000;
int symbol_cycles;
if (lane_count == 0 || hactive == 0 || bpp_x16 == 0) {
DRM_DEBUG_KMS("Invalid BW overhead params: lane_count %d, hactive %d, bpp_x16 %d.%04d\n",
lane_count, hactive,
bpp_x16 >> 4, (bpp_x16 & 0xf) * 625);
return 0;
}
/*
* DP Standard v2.1 2.6.4.1
* SSC downspread and ref clock variation margin:

12
drivers/gpu/drm/nouveau/nouveau_dmem.c
View file

@ -378,9 +378,9 @@ nouveau_dmem_evict_chunk(struct nouveau_dmem_chunk *chunk)
dma_addr_t *dma_addrs;
struct nouveau_fence *fence;
src_pfns = kcalloc(npages, sizeof(*src_pfns), GFP_KERNEL);
dst_pfns = kcalloc(npages, sizeof(*dst_pfns), GFP_KERNEL);
dma_addrs = kcalloc(npages, sizeof(*dma_addrs), GFP_KERNEL);
src_pfns = kvcalloc(npages, sizeof(*src_pfns), GFP_KERNEL | __GFP_NOFAIL);
dst_pfns = kvcalloc(npages, sizeof(*dst_pfns), GFP_KERNEL | __GFP_NOFAIL);
dma_addrs = kvcalloc(npages, sizeof(*dma_addrs), GFP_KERNEL | __GFP_NOFAIL);
migrate_device_range(src_pfns, chunk->pagemap.range.start >> PAGE_SHIFT,
npages);
@ -406,11 +406,11 @@ nouveau_dmem_evict_chunk(struct nouveau_dmem_chunk *chunk)
migrate_device_pages(src_pfns, dst_pfns, npages);
nouveau_dmem_fence_done(&fence);
migrate_device_finalize(src_pfns, dst_pfns, npages);
kfree(src_pfns);
kfree(dst_pfns);
kvfree(src_pfns);
kvfree(dst_pfns);
for (i = 0; i < npages; i++)
dma_unmap_page(chunk->drm->dev->dev, dma_addrs[i], PAGE_SIZE, DMA_BIDIRECTIONAL);
kfree(dma_addrs);
kvfree(dma_addrs);
}
void

2
drivers/gpu/drm/qxl/qxl_cmd.c
View file

@ -421,7 +421,6 @@ int qxl_surface_id_alloc(struct qxl_device *qdev,
{
uint32_t handle;
int idr_ret;
int count = 0;
again:
idr_preload(GFP_ATOMIC);
spin_lock(&qdev->surf_id_idr_lock);
@ -433,7 +432,6 @@ int qxl_surface_id_alloc(struct qxl_device *qdev,
handle = idr_ret;
if (handle >= qdev->rom->n_surfaces) {
count++;
spin_lock(&qdev->surf_id_idr_lock);
idr_remove(&qdev->surf_id_idr, handle);
spin_unlock(&qdev->surf_id_idr_lock);

4
drivers/gpu/drm/qxl/qxl_ioctl.c
View file

@ -145,7 +145,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
struct qxl_release *release;
struct qxl_bo *cmd_bo;
void *fb_cmd;
int i, ret, num_relocs;
int i, ret;
int unwritten;
switch (cmd->type) {
@ -200,7 +200,6 @@ static int qxl_process_single_command(struct qxl_device *qdev,
}
/* fill out reloc info structs */
num_relocs = 0;
for (i = 0; i < cmd->relocs_num; ++i) {
struct drm_qxl_reloc reloc;
struct drm_qxl_reloc __user *u = u64_to_user_ptr(cmd->relocs);
@ -230,7 +229,6 @@ static int qxl_process_single_command(struct qxl_device *qdev,
reloc_info[i].dst_bo = cmd_bo;
reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset;
}
num_relocs++;
/* reserve and validate the reloc dst bo */
if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) {

2
drivers/gpu/drm/rockchip/rockchip_vop2_reg.c
View file

@ -17,9 +17,7 @@
static const uint32_t formats_cluster[] = {
DRM_FORMAT_XRGB2101010,
DRM_FORMAT_ARGB2101010,
DRM_FORMAT_XBGR2101010,
DRM_FORMAT_ABGR2101010,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_XBGR8888,

12
drivers/gpu/drm/scheduler/sched_entity.c
View file

@ -71,13 +71,19 @@ int drm_sched_entity_init(struct drm_sched_entity *entity,
entity->guilty = guilty;
entity->num_sched_list = num_sched_list;
entity->priority = priority;
/*
* It's perfectly valid to initialize an entity without having a valid
* scheduler attached. It's just not valid to use the scheduler before it
* is initialized itself.
*/
entity->sched_list = num_sched_list > 1 ? sched_list : NULL;
RCU_INIT_POINTER(entity->last_scheduled, NULL);
RB_CLEAR_NODE(&entity->rb_tree_node);
if (!sched_list[0]->sched_rq) {
/* Warn drivers not to do this and to fix their DRM
* calling order.
if (num_sched_list && !sched_list[0]->sched_rq) {
/* Since every entry covered by num_sched_list
* should be non-NULL and therefore we warn drivers
* not to do this and to fix their DRM calling order.
*/
pr_warn("%s: called with uninitialized scheduler\n", __func__);
} else if (num_sched_list) {

15
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
View file

@ -1444,12 +1444,15 @@ static void vmw_debugfs_resource_managers_init(struct vmw_private *vmw)
root, "system_ttm");
ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, TTM_PL_VRAM),
root, "vram_ttm");
ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_GMR),
root, "gmr_ttm");
ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_MOB),
root, "mob_ttm");
ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_SYSTEM),
root, "system_mob_ttm");
if (vmw->has_gmr)
ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_GMR),
root, "gmr_ttm");
if (vmw->has_mob) {
ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_MOB),
root, "mob_ttm");
ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_SYSTEM),
root, "system_mob_ttm");
}
}
static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,

3
drivers/video/fbdev/Kconfig
View file

@ -494,6 +494,7 @@ config FB_SBUS_HELPERS
select FB_CFB_COPYAREA
select FB_CFB_FILLRECT
select FB_CFB_IMAGEBLIT
select FB_IOMEM_FOPS
config FB_BW2
bool "BWtwo support"
@ -514,6 +515,7 @@ config FB_CG6
depends on (FB = y) && (SPARC && FB_SBUS)
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
select FB_IOMEM_FOPS
help
This is the frame buffer device driver for the CGsix (GX, TurboGX)
frame buffer.
@ -523,6 +525,7 @@ config FB_FFB
depends on FB_SBUS && SPARC64
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
select FB_IOMEM_FOPS
help
This is the frame buffer device driver for the Creator, Creator3D,
and Elite3D graphics boards.