diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-12-17 15:57:54 +0300 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-12-17 15:57:54 +0300 |
commit | 6c56e8adc0011b3bc01b6b2bab7e41d5ecb43c0f (patch) | |
tree | 3baa1c367f120d7fcc1c30dbb8a6aff5fa5dd672 /drivers/gpu/drm/ttm | |
parent | d1eef1c619749b2a57e514a3fa67d9a516ffa919 (diff) | |
parent | 2156873f08c7893811f34177aa923ab1ea486591 (diff) | |
download | linux-6c56e8adc0011b3bc01b6b2bab7e41d5ecb43c0f.tar.xz |
Merge tag 'drm-misc-next-2019-12-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v5.6:
UAPI Changes:
- Add support for DMA-BUF HEAPS.
Cross-subsystem Changes:
- mipi dsi definition updates, pulled into drm-intel as well.
- Add lockdep annotations for dma_resv vs mmap_sem and fs_reclaim.
- Remove support for dma-buf kmap/kunmap.
- Constify fb_ops in all fbdev drivers, including drm drivers and drm-core, and media as well.
Core Changes:
- Small cleanups to ttm.
- Fix SCDC definition.
- Assorted cleanups to core.
- Add todo to remove load/unload hooks, and use generic fbdev emulation.
- Assorted documentation updates.
- Use blocking ww lock in ttm fault handler.
- Remove drm_fb_helper_fbdev_setup/teardown.
- Warning fixes with W=1 for atomic.
- Use drm_debug_enabled() instead of drm_debug flag testing in various drivers.
- Fallback to nontiled mode in fbdev emulation when not all tiles are present. (Later on reverted)
- Various kconfig indentation fixes in core and drivers.
- Fix freeing transactions in dp-mst correctly.
- Sean Paul is steping down as core maintainer. :-(
- Add lockdep annotations for atomic locks vs dma-resv.
- Prevent use-after-free for a bad job in drm_scheduler.
- Fill out all block sizes in the P01x and P210 definitions.
- Avoid division by zero in drm/rect, and fix bounds.
- Add drm/rect selftests.
- Add aspect ratio and alternate clocks for HDMI 4k modes.
- Add todo for drm_framebuffer_funcs and fb_create cleanup.
- Drop DRM_AUTH for prime import/export ioctls.
- Clear DP-MST payload id tables downstream when initializating.
- Fix for DSC throughput definition.
- Add extra FEC definitions.
- Fix fake offset in drm_gem_object_funs.mmap.
- Stop using encoder->bridge in core directly
- Handle bridge chaining slightly better.
- Add backlight support to drm/panel, and use it in many panel drivers.
- Increase max number of y420 modes from 128 to 256, as preparation to add the new modes.
Driver Changes:
- Small fixes all over.
- Fix documentation in vkms.
- Fix mmap_sem vs dma_resv in nouveau.
- Small cleanup in komeda.
- Add page flip support in gma500 for psb/cdv.
- Add ddc symlink in the connector sysfs directory for many drivers.
- Add support for analogic an6345, and fix small bugs in it.
- Add atomic modesetting support to ast.
- Fix radeon fault handler VMA race.
- Switch udl to use generic shmem helpers.
- Unconditional vblank handling for mcde.
- Miscellaneous fixes to mcde.
- Tweak debug output from komeda using debugfs.
- Add gamma and color transform support to komeda for DOU-IPS.
- Add support for sony acx424AKP panel.
- Various small cleanups to gma500.
- Use generic fbdev emulation in udl, and replace udl_framebuffer with generic implementation.
- Add support for Logic PD Type 28 panel.
- Use drm_panel_* wrapper functions in exynos/tegra/msm.
- Add devicetree bindings for generic DSI panels.
- Don't include drm_pci.h directly in many drivers.
- Add support for begin/end_cpu_access in udmabuf.
- Stop using drm_get_pci_dev in gma500 and mga200.
- Fixes to UDL damage handling, and use dma_buf_begin/end_cpu_access.
- Add devfreq thermal support to panfrost.
- Fix hotplug with daisy chained monitors by removing VCPI when disabling topology manager.
- meson: Add support for OSD1 plane AFBC commit.
- Stop displaying garbage when toggling ast primary plane on/off.
- More cleanups and fixes to UDL.
- Add D32 suport to komeda.
- Remove globle copy of drm_dev in gma500.
- Add support for Boe Himax8279d MIPI-DSI LCD panel.
- Add support for ingenic JZ4770 panel.
- Small null pointer deference fix in ingenic.
- Remove support for the special tfp420 driver, as there is a generic way to do it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ba73535a-9334-5302-2e1f-5208bd7390bd@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 36 | ||||
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_util.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_vm.c | 27 | ||||
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 5 |
4 files changed, 13 insertions, 56 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 8d91b0428af1..5df596fb0280 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -161,7 +161,6 @@ static void ttm_bo_release_list(struct kref *list_kref) dma_fence_put(bo->moving); if (!ttm_bo_uses_embedded_gem_object(bo)) dma_resv_fini(&bo->base._resv); - mutex_destroy(&bo->wu_mutex); bo->destroy(bo); ttm_mem_global_free(&ttm_mem_glob, acc_size); } @@ -1299,7 +1298,6 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev, INIT_LIST_HEAD(&bo->ddestroy); INIT_LIST_HEAD(&bo->swap); INIT_LIST_HEAD(&bo->io_reserve_lru); - mutex_init(&bo->wu_mutex); bo->bdev = bdev; bo->type = type; bo->num_pages = num_pages; @@ -1903,37 +1901,3 @@ void ttm_bo_swapout_all(struct ttm_bo_device *bdev) while (ttm_bo_swapout(&ttm_bo_glob, &ctx) == 0); } EXPORT_SYMBOL(ttm_bo_swapout_all); - -/** - * ttm_bo_wait_unreserved - interruptible wait for a buffer object to become - * unreserved - * - * @bo: Pointer to buffer - */ -int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo) -{ - int ret; - - /* - * In the absense of a wait_unlocked API, - * Use the bo::wu_mutex to avoid triggering livelocks due to - * concurrent use of this function. Note that this use of - * bo::wu_mutex can go away if we change locking order to - * mmap_sem -> bo::reserve. - */ - ret = mutex_lock_interruptible(&bo->wu_mutex); - if (unlikely(ret != 0)) - return -ERESTARTSYS; - if (!dma_resv_is_locked(bo->base.resv)) - goto out_unlock; - ret = dma_resv_lock_interruptible(bo->base.resv, NULL); - if (ret == -EINTR) - ret = -ERESTARTSYS; - if (unlikely(ret != 0)) - goto out_unlock; - dma_resv_unlock(bo->base.resv); - -out_unlock: - mutex_unlock(&bo->wu_mutex); - return ret; -} diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 6b0883a1776e..2b0e5a088da0 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -504,7 +504,6 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo, INIT_LIST_HEAD(&fbo->base.lru); INIT_LIST_HEAD(&fbo->base.swap); INIT_LIST_HEAD(&fbo->base.io_reserve_lru); - mutex_init(&fbo->base.wu_mutex); fbo->base.moving = NULL; drm_vma_node_reset(&fbo->base.base.vma_node); diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index 11863fbdd5d6..eebb4c06c04d 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -139,19 +139,17 @@ vm_fault_t ttm_bo_vm_reserve(struct ttm_buffer_object *bo, if (!(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) { ttm_bo_get(bo); up_read(&vmf->vma->vm_mm->mmap_sem); - (void) ttm_bo_wait_unreserved(bo); + if (!dma_resv_lock_interruptible(bo->base.resv, + NULL)) + dma_resv_unlock(bo->base.resv); ttm_bo_put(bo); } return VM_FAULT_RETRY; } - /* - * If we'd want to change locking order to - * mmap_sem -> bo::reserve, we'd use a blocking reserve here - * instead of retrying the fault... - */ - return VM_FAULT_NOPAGE; + if (dma_resv_lock_interruptible(bo->base.resv, NULL)) + return VM_FAULT_NOPAGE; } return 0; @@ -316,7 +314,7 @@ out_io_unlock: } EXPORT_SYMBOL(ttm_bo_vm_fault_reserved); -static vm_fault_t ttm_bo_vm_fault(struct vm_fault *vmf) +vm_fault_t ttm_bo_vm_fault(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; pgprot_t prot; @@ -336,6 +334,7 @@ static vm_fault_t ttm_bo_vm_fault(struct vm_fault *vmf) return ret; } +EXPORT_SYMBOL(ttm_bo_vm_fault); void ttm_bo_vm_open(struct vm_area_struct *vma) { @@ -395,8 +394,8 @@ static int ttm_bo_vm_access_kmap(struct ttm_buffer_object *bo, return len; } -static int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr, - void *buf, int len, int write) +int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr, + void *buf, int len, int write) { unsigned long offset = (addr) - vma->vm_start; struct ttm_buffer_object *bo = vma->vm_private_data; @@ -432,6 +431,7 @@ static int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr, return ret; } +EXPORT_SYMBOL(ttm_bo_vm_access); static const struct vm_operations_struct ttm_bo_vm_ops = { .fault = ttm_bo_vm_fault, @@ -520,13 +520,6 @@ EXPORT_SYMBOL(ttm_bo_mmap); int ttm_bo_mmap_obj(struct vm_area_struct *vma, struct ttm_buffer_object *bo) { ttm_bo_get(bo); - - /* - * FIXME: &drm_gem_object_funcs.mmap is called with the fake offset - * removed. Add it back here until the rest of TTM works without it. - */ - vma->vm_pgoff += drm_vma_node_start(&bo->base.vma_node); - ttm_bo_mmap_vma_setup(bo, vma); return 0; } diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index e0e9b4f69db6..2ec448e1d663 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -223,8 +223,9 @@ void ttm_tt_destroy(struct ttm_tt *ttm) ttm->func->destroy(ttm); } -void ttm_tt_init_fields(struct ttm_tt *ttm, struct ttm_buffer_object *bo, - uint32_t page_flags) +static void ttm_tt_init_fields(struct ttm_tt *ttm, + struct ttm_buffer_object *bo, + uint32_t page_flags) { ttm->bdev = bo->bdev; ttm->num_pages = bo->num_pages; |