diff options
| author | Dave Airlie <airlied@redhat.com> | 2019-07-15 21:07:13 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2019-07-15 21:07:13 +0300 |
| commit | 3729fe2bc2a01f4cc1aa88be8f64af06084c87d6 (patch) | |
| tree | 462102b65a8cec402bc4726eef6946bdd9113111 /drivers/gpu | |
| parent | 7e4b4dfc98d54bc79f7ca29c8bc6307ed2948014 (diff) | |
| download | linux-3729fe2bc2a01f4cc1aa88be8f64af06084c87d6.tar.xz | |
Revert "Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux into drm-next"
This reverts commit 031e610a6a21448a63dff7a0416e5e206724caac, reversing
changes made to 52d2d44eee8091e740d0d275df1311fb8373c9a9.
The mm changes in there we premature and not fully ack or reviewed by core mm folks,
I dropped the ball by merging them via this tree, so lets take em all back out.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
21 files changed, 445 insertions, 1685 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index a7fd5a4955c9..58c403eda04e 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1739,7 +1739,6 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev, mutex_lock(&ttm_global_mutex); list_add_tail(&bdev->device_list, &glob->device_list); mutex_unlock(&ttm_global_mutex); - bdev->vm_ops = &ttm_bo_vm_ops; return 0; out_no_sys: diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index 0c4576cbafcf..6dacff49c1cc 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -42,6 +42,8 @@ #include <linux/uaccess.h> #include <linux/mem_encrypt.h> +#define TTM_BO_VM_NUM_PREFAULT 16 + static vm_fault_t ttm_bo_vm_fault_idle(struct ttm_buffer_object *bo, struct vm_fault *vmf) { @@ -104,30 +106,25 @@ static unsigned long ttm_bo_io_mem_pfn(struct ttm_buffer_object *bo, + page_offset; } -/** - * ttm_bo_vm_reserve - Reserve a buffer object in a retryable vm callback - * @bo: The buffer object - * @vmf: The fault structure handed to the callback - * - * vm callbacks like fault() and *_mkwrite() allow for the mm_sem to be dropped - * during long waits, and after the wait the callback will be restarted. This - * is to allow other threads using the same virtual memory space concurrent - * access to map(), unmap() completely unrelated buffer objects. TTM buffer - * object reservations sometimes wait for GPU and should therefore be - * considered long waits. This function reserves the buffer object interruptibly - * taking this into account. Starvation is avoided by the vm system not - * allowing too many repeated restarts. - * This function is intended to be used in customized fault() and _mkwrite() - * handlers. - * - * Return: - * 0 on success and the bo was reserved. - * VM_FAULT_RETRY if blocking wait. - * VM_FAULT_NOPAGE if blocking wait and retrying was not allowed. - */ -vm_fault_t ttm_bo_vm_reserve(struct ttm_buffer_object *bo, - struct vm_fault *vmf) +static vm_fault_t ttm_bo_vm_fault(struct vm_fault *vmf) { + struct vm_area_struct *vma = vmf->vma; + struct ttm_buffer_object *bo = (struct ttm_buffer_object *) + vma->vm_private_data; + struct ttm_bo_device *bdev = bo->bdev; + unsigned long page_offset; + unsigned long page_last; + unsigned long pfn; + struct ttm_tt *ttm = NULL; + struct page *page; + int err; + int i; + vm_fault_t ret = VM_FAULT_NOPAGE; + unsigned long address = vmf->address; + struct ttm_mem_type_manager *man = + &bdev->man[bo->mem.mem_type]; + struct vm_area_struct cvma; + /* * Work around locking order reversal in fault / nopfn * between mmap_sem and bo_reserve: Perform a trylock operation @@ -154,55 +151,14 @@ vm_fault_t ttm_bo_vm_reserve(struct ttm_buffer_object *bo, return VM_FAULT_NOPAGE; } - return 0; -} -EXPORT_SYMBOL(ttm_bo_vm_reserve); - -/** - * ttm_bo_vm_fault_reserved - TTM fault helper - * @vmf: The struct vm_fault given as argument to the fault callback - * @prot: The page protection to be used for this memory area. - * @num_prefault: Maximum number of prefault pages. The caller may want to - * specify this based on madvice settings and the size of the GPU object - * backed by the memory. - * - * This function inserts one or more page table entries pointing to the - * memory backing the buffer object, and then returns a return code - * instructing the caller to retry the page access. - * - * Return: - * VM_FAULT_NOPAGE on success or pending signal - * VM_FAULT_SIGBUS on unspecified error - * VM_FAULT_OOM on out-of-memory - * VM_FAULT_RETRY if retryable wait - */ -vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf, - pgprot_t prot, - pgoff_t num_prefault) -{ - struct vm_area_struct *vma = vmf->vma; - struct vm_area_struct cvma = *vma; - struct ttm_buffer_object *bo = (struct ttm_buffer_object *) - vma->vm_private_data; - struct ttm_bo_device *bdev = bo->bdev; - unsigned long page_offset; - unsigned long page_last; - unsigned long pfn; - struct ttm_tt *ttm = NULL; - struct page *page; - int err; - pgoff_t i; - vm_fault_t ret = VM_FAULT_NOPAGE; - unsigned long address = vmf->address; - struct ttm_mem_type_manager *man = - &bdev->man[bo->mem.mem_type]; - /* * Refuse to fault imported pages. This should be handled * (if at all) by redirecting mmap to the exporter. */ - if (bo->ttm && (bo->ttm->page_flags & TTM_PAGE_FLAG_SG)) - return VM_FAULT_SIGBUS; + if (bo->ttm && (bo->ttm->page_flags & TTM_PAGE_FLAG_SG)) { + ret = VM_FAULT_SIGBUS; + goto out_unlock; + } if (bdev->driver->fault_reserve_notify) { struct dma_fence *moving = dma_fence_get(bo->moving); @@ -213,9 +169,11 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf, break; case -EBUSY: case -ERESTARTSYS: - return VM_FAULT_NOPAGE; + ret = VM_FAULT_NOPAGE; + goto out_unlock; default: - return VM_FAULT_SIGBUS; + ret = VM_FAULT_SIGBUS; + goto out_unlock; } if (bo->moving != moving) { @@ -231,12 +189,21 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf, * move. */ ret = ttm_bo_vm_fault_idle(bo, vmf); - if (unlikely(ret != 0)) - return ret; + if (unlikely(ret != 0)) { + if (ret == VM_FAULT_RETRY && + !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) { + /* The BO has already been unreserved. */ + return ret; + } + + goto out_unlock; + } err = ttm_mem_io_lock(man, true); - if (unlikely(err != 0)) - return VM_FAULT_NOPAGE; + if (unlikely(err != 0)) { + ret = VM_FAULT_NOPAGE; + goto out_unlock; + } err = ttm_mem_io_reserve_vm(bo); if (unlikely(err != 0)) { ret = VM_FAULT_SIGBUS; @@ -253,8 +220,18 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf, goto out_io_unlock; } - cvma.vm_page_prot = ttm_io_prot(bo->mem.placement, prot); - if (!bo->mem.bus.is_iomem) { + /* + * Make a local vma copy to modify the page_prot member + * and vm_flags if necessary. The vma parameter is protected + * by mmap_sem in write mode. + */ + cvma = *vma; + cvma.vm_page_prot = vm_get_page_prot(cvma.vm_flags); + + if (bo->mem.bus.is_iomem) { + cvma.vm_page_prot = ttm_io_prot(bo->mem.placement, + cvma.vm_page_prot); + } else { struct ttm_operation_ctx ctx = { .interruptible = false, .no_wait_gpu = false, @@ -263,21 +240,24 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf, }; ttm = bo->ttm; - if (ttm_tt_populate(bo->ttm, &ctx)) { + cvma.vm_page_prot = ttm_io_prot(bo->mem.placement, + cvma.vm_page_prot); + + /* Allocate all page at once, most common usage */ + if (ttm_tt_populate(ttm, &ctx)) { ret = VM_FAULT_OOM; goto out_io_unlock; } - } else { - /* Iomem should not be marked encrypted */ - cvma.vm_page_prot = pgprot_decrypted(cvma.vm_page_prot); } /* * Speculatively prefault a number of pages. Only error on * first page. */ - for (i = 0; i < num_prefault; ++i) { + for (i = 0; i < TTM_BO_VM_NUM_PREFAULT; ++i) { if (bo->mem.bus.is_iomem) { + /* Iomem should not be marked encrypted */ + cvma.vm_page_prot = pgprot_decrypted(cvma.vm_page_prot); pfn = ttm_bo_io_mem_pfn(bo, page_offset); } else { page = ttm->pages[page_offset]; @@ -315,26 +295,7 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf, ret = VM_FAULT_NOPAGE; out_io_unlock: ttm_mem_io_unlock(man); - return ret; -} -EXPORT_SYMBOL(ttm_bo_vm_fault_reserved); - -static vm_fault_t ttm_bo_vm_fault(struct vm_fault *vmf) -{ - struct vm_area_struct *vma = vmf->vma; - pgprot_t prot; - struct ttm_buffer_object *bo = vma->vm_private_data; - vm_fault_t ret; - - ret = ttm_bo_vm_reserve(bo, vmf); - if (ret) - return ret; - - prot = vm_get_page_prot(vma->vm_flags); - ret = ttm_bo_vm_fault_reserved(vmf, prot, TTM_BO_VM_NUM_PREFAULT); - if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) - return ret; - +out_unlock: reservation_object_unlock(bo->resv); return ret; } @@ -434,7 +395,7 @@ static int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr, return ret; } -const struct vm_operations_struct ttm_bo_vm_ops = { +static const struct vm_operations_struct ttm_bo_vm_ops = { .fault = ttm_bo_vm_fault, .open = ttm_bo_vm_open, .close = ttm_bo_vm_close, @@ -487,7 +448,7 @@ int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma, if (unlikely(ret != 0)) goto out_unref; - vma->vm_ops = bdev->vm_ops; + vma->vm_ops = &ttm_bo_vm_ops; /* * Note: We're transferring the bo reference to @@ -519,7 +480,7 @@ int ttm_fbdev_mmap(struct vm_area_struct *vma, struct ttm_buffer_object *bo) ttm_bo_get(bo); - vma->vm_ops = bo->bdev->vm_ops; + vma->vm_ops = &ttm_bo_vm_ops; vma->vm_private_data = bo; vma->vm_flags |= VM_MIXEDMAP; vma->vm_flags |= VM_IO | VM_DONTEXPAND; diff --git a/drivers/gpu/drm/vmwgfx/Kconfig b/drivers/gpu/drm/vmwgfx/Kconfig index d5fd81a521f6..6b28a326f8bb 100644 --- a/drivers/gpu/drm/vmwgfx/Kconfig +++ b/drivers/gpu/drm/vmwgfx/Kconfig @@ -8,7 +8,6 @@ config DRM_VMWGFX select FB_CFB_IMAGEBLIT select DRM_TTM select FB - select AS_DIRTY_HELPERS # Only needed for the transitional use of drm_crtc_init - can be removed # again once vmwgfx sets up the primary plane itself. select DRM_KMS_HELPER diff --git a/drivers/gpu/drm/vmwgfx/Makefile b/drivers/gpu/drm/vmwgfx/Makefile index c877a21a0739..8841bd30e1e5 100644 --- a/drivers/gpu/drm/vmwgfx/Makefile +++ b/drivers/gpu/drm/vmwgfx/Makefile @@ -8,7 +8,7 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \ vmwgfx_cmdbuf_res.o vmwgfx_cmdbuf.o vmwgfx_stdu.o \ vmwgfx_cotable.o vmwgfx_so.o vmwgfx_binding.o vmwgfx_msg.o \ vmwgfx_simple_resource.o vmwgfx_va.o vmwgfx_blit.o \ - vmwgfx_validation.o vmwgfx_page_dirty.o \ + vmwgfx_validation.o \ ttm_object.o ttm_lock.o obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o diff --git a/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h b/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h index 61414f105c67..f2bfd3d80598 100644 --- a/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h +++ b/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h @@ -1280,6 +1280,7 @@ svga3dsurface_get_pixel_offset(SVGA3dSurfaceFormat format, return offset; } + static inline u32 svga3dsurface_get_image_offset(SVGA3dSurfaceFormat format, surf_size_struct baseLevelSize, @@ -1374,236 +1375,4 @@ svga3dsurface_is_screen_target_format(SVGA3dSurfaceFormat format) return svga3dsurface_is_dx_screen_target_format(format); } -/** - * struct svga3dsurface_mip - Mimpmap level information - * @bytes: Bytes required in the backing store of this mipmap level. - * @img_stride: Byte stride per image. - * @row_stride: Byte stride per block row. - * @size: The size of the mipmap. - */ -struct svga3dsurface_mip { - size_t bytes; - size_t img_stride; - size_t row_stride; - struct drm_vmw_size size; - -}; - -/** - * struct svga3dsurface_cache - Cached surface information - * @desc: Pointer to the surface descriptor - * @mip: Array of mipmap level information. Valid size is @num_mip_levels. - * @mip_chain_bytes: Bytes required in the backing store for the whole chain - * of mip levels. - * @sheet_bytes: Bytes required in the backing store for a sheet - * representing a single sample. - * @num_mip_levels: Valid size of the @mip array. Number of mipmap levels in - * a chain. - * @num_layers: Number of slices in an array texture or number of faces in - * a cubemap texture. - */ -struct svga3dsurface_cache { - const struct svga3d_surface_desc *desc; - struct svga3dsurface_mip mip[DRM_VMW_MAX_MIP_LEVELS]; - size_t mip_chain_bytes; - size_t sheet_bytes; - u32 num_mip_levels; - u32 num_layers; -}; - -/** - * struct svga3dsurface_loc - Surface location - * @sub_resource: Surface subresource. Defined as layer * num_mip_levels + - * mip_level. - * @x: X coordinate. - * @y: Y coordinate. - * @z: Z coordinate. - */ -struct svga3dsurface_loc { - u32 sub_resource; - u32 x, y, z; -}; - -/** - * svga3dsurface_subres - Compute the subresource from layer and mipmap. - * @cache: Surface layout data. - * @mip_level: The mipmap level. - * @layer: The surface layer (face or array slice). - * - * Return: The subresource. - */ -static inline u32 svga3dsurface_subres(const struct svga3dsurface_cache *cache, - u32 mip_level, u32 layer) -{ - return cache->num_mip_levels * layer + mip_level; -} - -/** - * svga3dsurface_setup_cache - Build a surface cache entry - * @size: The surface base level dimensions. - * @format: The surface format. - * @num_mip_levels: Number of mipmap levels. - * @num_layers: Number of layers. - * @cache: Pointer to a struct svga3dsurface_cach object to be filled in. - * - * Return: Zero on success, -EINVAL on invalid surface layout. - */ -static inline int svga3dsurface_setup_cache(const struct drm_vmw_size *size, - SVGA3dSurfaceFormat format, - u32 num_mip_levels, - u32 num_layers, - u32 num_samples, - struct svga3dsurface_cache *cache) -{ - const struct svga3d_surface_desc *desc; - u32 i; - - memset(cache, 0, sizeof(*cache)); - cache->desc = desc = svga3dsurface_get_desc(format); - cache->num_mip_levels = num_mip_levels; - cache->num_layers = num_layers; - for (i = 0; i < cache->num_mip_levels; i++) { - struct svga3dsurface_mip *mip = &cache->mip[i]; - - mip->size = svga3dsurface_get_mip_size(*size, i); - mip->bytes = svga3dsurface_get_image_buffer_size - (desc, &mip->size, 0); - mip->row_stride = - __KERNEL_DIV_ROUND_UP(mip->size.width, - desc->block_size.width) * - desc->bytes_per_block * num_samples; - if (!mip->row_stride) - goto invalid_dim; - - mip->img_stride = - __KERNEL_DIV_ROUND_UP(mip->size.height, - desc->block_size.height) * - mip->row_stride; - if (!mip->img_stride) - goto invalid_dim; - - cache->mip_chain_bytes += mip->bytes; - } - cache->sheet_bytes = cache->mip_chain_bytes * num_layers; - if (!cache->sheet_bytes) - goto invalid_dim; - - return 0; - -invalid_dim: - VMW_DEBUG_USER("Invalid surface layout for dirty tracking.\n"); - return -EINVAL; -} - -/** - * svga3dsurface_get_loc - Get a surface location from an offset into the - * backing store - * @cache: Surface layout data. - * @loc: Pointer to a struct svga3dsurface_loc to be filled in. - * @offset: Offset into the surface backing store. - */ -static inline void -svga3dsurface_get_loc(const struct svga3dsurface_cache *cache, - struct svga3dsurface_loc *loc, - size_t offset) -{ - const struct svga3dsurface_mip *mip = &cache->mip[0]; - const struct svga3d_surface_desc *desc = cache->desc; - u32 layer; - int i; - - if (offset >= cache->sheet_bytes) - offset %= cache->sheet_bytes; - - layer = offset / cache->mip_chain_bytes; - offset -= layer * cache->mip_chain_bytes; - for (i = 0; i < cache->num_mip_levels; ++i, ++mip) { - if (mip->bytes > offset) - break; - offset -= mip->bytes; - } - - loc->sub_resource = svga3dsurface_subres(cache, i, layer); - loc->z = offset / mip->img_stride; - offset -= loc->z * mip->img_stride; - loc->z *= desc->block_size.depth; - loc->y = offset / mip->row_stride; - offset -= loc->y * mip->row_stride; - loc->y *= desc->block_size.height; - loc->x = offset / desc->bytes_per_block; - loc->x *= desc->block_size.width; -} - -/** - * svga3dsurface_inc_loc - Clamp increment a surface location with one block - * size - * in each dimension. - * @loc: Pointer to a struct svga3dsurface_loc to be incremented. - * - * When computing the size of a range as size = end - start, the range does not - * include the end element. However a location representing the last byte - * of a touched region in the backing store *is* included in the range. - * This function modifies such a location to match the end definition - * given as start + size which is the one used in a SVGA3dBox. - */ -static inline void -svga3dsurface_inc_loc(const struct svga3dsurface_cache *cache, - struct svga3dsurface_loc *loc) -{ - const struct svga3d_surface_desc *desc = cache->desc; - u32 mip = loc->sub_resource % cache->num_mip_levels; - const struct drm_vmw_size *size = &cache->mip[mip].size; - - loc->sub_resource++; - loc->x += desc->block_size.width; - if (loc->x > size->width) - loc->x = size->width; - loc->y += desc->block_size.height; - if (loc->y > size->height) - loc->y = size->height; - loc->z += desc->block_size.depth; - if (loc->z > size->depth) - loc->z = size->depth; -} - -/** - * svga3dsurface_min_loc - The start location in a subresource - * @cache: Surface layout data. - * @sub_resource: The subresource. - * @loc: Pointer to a struct svga3dsurface_loc to be filled in. - */ -static inline void -svga3dsurface_min_loc(const struct svga3dsurface_cache *cache, - u32 sub_resource, - struct svga3dsurface_loc *loc) -{ - loc->sub_resource = sub_resource; - loc->x = loc->y = loc->z = 0; -} - -/** - * svga3dsurface_min_loc - The end location in a subresource - * @cache: Surface layout data. - * @sub_resource: The subresource. - * @loc: Pointer to a struct svga3dsurface_loc to be filled in. - * - * Following the end definition given in svga3dsurface_inc_loc(), - * Compute the end location of a surface subresource. - */ -static inline void -svga3dsurface_max_loc(const struct svga3dsurface_cache *cache, - u32 sub_resource, - struct svga3dsurface_loc *loc) -{ - const struct drm_vmw_size *size; - u32 mip; - - loc->sub_resource = sub_resource + 1; - mip = sub_resource % cache->num_mip_levels; - size = &cache->mip[mip].size; - loc->x = size->width; - loc->y = size->height; - loc->z = size->depth; -} - #endif /* _SVGA3D_SURFACEDEFS_H_ */ diff --git a/drivers/gpu/drm/vmwgfx/ttm_lock.c b/drivers/gpu/drm/vmwgfx/ttm_lock.c index 5971c72e6d10..16b2083cb9d4 100644 --- a/drivers/gpu/drm/vmwgfx/ttm_lock.c +++ b/drivers/gpu/drm/vmwgfx/ttm_lock.c @@ -29,6 +29,7 @@ * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> */ +#include <drm/ttm/ttm_module.h> #include <linux/atomic.h> #include <linux/errno.h> #include <linux/wait.h> @@ -48,6 +49,8 @@ void ttm_lock_init(struct ttm_lock *lock) init_waitqueue_head(&lock->queue); lock->rw = 0; lock->flags = 0; + lock->kill_takers = false; + lock->signal = SIGKILL; } void ttm_read_unlock(struct ttm_lock *lock) @@ -63,6 +66,11 @@ static bool __ttm_read_lock(struct ttm_lock *lock) bool locked = false; spin_lock(&lock->lock); + if (unlikely(lock->kill_takers)) { + send_sig(lock->signal, current, 0); + spin_unlock(&lock->lock); + return false; + } if (lock->rw >= 0 && lock->flags == 0) { ++lock->rw; locked = true; @@ -90,6 +98,11 @@ static bool __ttm_read_trylock(struct ttm_lock *lock, bool *locked) *locked = false; spin_lock(&lock->lock); + if (unlikely(lock->kill_takers)) { + send_sig(lock->signal, current, 0); + spin_unlock(&lock->lock); + return false; + } if (lock->rw >= 0 && lock->flags == 0) { ++lock->rw; block = false; @@ -134,6 +147,11 @@ static bool __ttm_write_lock(struct ttm_lock *lock) bool locked = false; spin_lock(&lock->lock); + if (unlikely(lock->kill_takers)) { + send_sig(lock->signal, current, 0); + spin_unlock(&lock->lock); + return false; + } if (lock->rw == 0 && ((lock->flags & ~TTM_WRITE_LOCK_PENDING) == 0)) { lock->rw = -1; lock->flags &= ~TTM_WRITE_LOCK_PENDING; @@ -164,6 +182,88 @@ int ttm_write_lock(struct ttm_lock *lock, bool interruptible) return ret; } +static int __ttm_vt_unlock(struct ttm_lock *lock) +{ + int ret = 0; + + spin_lock(&lock->lock); + if (unlikely(!(lock->flags & TTM_VT_LOCK))) + ret = -EINVAL; + lock->flags &= ~TTM_VT_LOCK; + wake_up_all(&lock->queue); + spin_unlock(&lock->lock); + + return ret; +} + +static void ttm_vt_lock_remove(struct ttm_base_object **p_base) +{ + struct ttm_base_object *base = *p_base; + struct ttm_lock *lock = container_of(base, struct ttm_lock, base); + int ret; + + *p_base = NULL; + ret = __ttm_vt_unlock(lock); + BUG_ON(ret != 0); +} + +static bool __ttm_vt_lock(struct ttm_lock *lock) +{ + bool locked = false; + + spin_lock(&lock->lock); + if (lock->rw == 0) { + lock->flags &= ~TTM_VT_LOCK_PENDING; + lock->flags |= TTM_VT_LOCK; + locked = true; + } else { + lock->flags |= TTM_VT_LOCK_PENDING; + } + spin_unlock(&lock->lock); + return locked; +} + +int ttm_vt_lock(struct ttm_lock *lock, + bool interruptible, + struct ttm_object_file *tfile) +{ + int ret = 0; + + if (interruptible) { + ret = wait_event_interruptible(lock->queue, + __ttm_vt_lock(lock)); + if (unlikely(ret != 0)) { + spin_lock(&lock->lock); + lock->flags &= ~TTM_VT_LOCK_PENDING; + wake_up_all(&lock->queue); + spin_unlock(&lock->lock); + return ret; + } + } else + wait_event(lock->queue, __ttm_vt_lock(lock)); + + /* + * Add a base-object, the destructor of which will + * make sure the lock is released if the client dies + * while holding it. + */ + + ret = ttm_base_object_init(tfile, &lock->base, false, + ttm_lock_type, &ttm_vt_lock_remove, NULL); + if (ret) + (void)__ttm_vt_unlock(lock); + else + lock->vt_holder = tfile; + + return ret; +} + +int ttm_vt_unlock(struct ttm_lock *lock) +{ + return ttm_ref_object_base_unref(lock->vt_holder, + lock->base.handle, TTM_REF_USAGE); +} + void ttm_suspend_unlock(struct ttm_lock *lock) { spin_lock(&lock->lock); diff --git a/drivers/gpu/drm/vmwgfx/ttm_lock.h b/drivers/gpu/drm/vmwgfx/ttm_lock.h index 3d454e8b491f..0c3af9836863 100644 --- a/drivers/gpu/drm/vmwgfx/ttm_lock.h +++ b/drivers/gpu/drm/vmwgfx/ttm_lock.h @@ -63,6 +63,8 @@ * @lock: Spinlock protecting some lock members. * @rw: Read-write lock counter. Protected by @lock. * @flags: Lock state. Protected by @lock. + * @kill_takers: Boolean whether to kill takers of the lock. + * @signal: Signal to send when kill_takers is true. */ struct ttm_lock { @@ -71,6 +73,9 @@ struct ttm_lock { spinlock_t lock; int32_t rw; uint32_t flags; + bool kill_takers; + int signal; + struct ttm_object_file *vt_holder; }; @@ -215,4 +220,29 @@ extern void ttm_write_unlock(struct ttm_lock *lock); */ extern int ttm_write_lock(struct ttm_lock *lock, bool interruptible); +/** + * ttm_lock_set_kill + * + * @lock: Pointer to a struct ttm_lock + * @val: Boolean whether to kill processes taking the lock. + * @signal: Signal to send to the process taking the lock. + * + * The kill-when-taking-lock functionality is used to kill processes that keep + * on using the TTM functionality when its resources has been taken down, for + * example when the X server exits. A typical sequence would look like this: + * - X server takes lock in write mode. + * - ttm_lock_set_kill() is called with @val set to true. + * - As part of X server exit, TTM resources are taken down. + * - X server releases the lock on file release. + * - Another dri client wants to render, takes the lock and is killed. + * + */ +static inline void ttm_lock_set_kill(struct ttm_lock *lock, bool val, + int signal) +{ + lock->kill_takers = val; + if (val) + lock->signal = signal; +} + #endif diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c index e8bc7a7ac031..5d5c2bce01f3 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c @@ -463,8 +463,6 @@ void vmw_bo_bo_free(struct ttm_buffer_object *bo) { struct vmw_buffer_object *vmw_bo = vmw_buffer_object(bo); - WARN_ON(vmw_bo->dirty); - WARN_ON(!RB_EMPTY_ROOT(&vmw_bo->res_tree)); vmw_bo_unmap(vmw_bo); kfree(vmw_bo); } @@ -478,11 +476,8 @@ void vmw_bo_bo_free(struct ttm_buffer_object *bo) static void vmw_user_bo_destroy(struct ttm_buffer_object *bo) { struct vmw_user_buffer_object *vmw_user_bo = vmw_user_buffer_object(bo); - struct vmw_buffer_object *vbo = &vmw_user_bo->vbo; - WARN_ON(vbo->dirty); - WARN_ON(!RB_EMPTY_ROOT(&vbo->res_tree)); - vmw_bo_unmap(vbo); + vmw_bo_unmap(&vmw_user_bo->vbo); ttm_prime_object_kfree(vmw_user_bo, prime); } @@ -515,9 +510,8 @@ int vmw_bo_init(struct vmw_private *dev_priv, acc_size = vmw_bo_acc_size(dev_priv, size, user); memset(vmw_bo, 0, sizeof(*vmw_bo)); - BUILD_BUG_ON(TTM_MAX_BO_PRIORITY <= 3); - vmw_bo->base.priority = 3; - vmw_bo->res_tree = RB_ROOT; + + INIT_LIST_HEAD(&vmw_bo->res_list); ret = ttm_bo_init(bdev, &vmw_bo->base, size, ttm_bo_type_device, placement, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_context.c b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c index a56c9d802382..63f111068a44 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_context.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c @@ -88,8 +88,6 @@ static const struct vmw_res_func vmw_gb_context_func = { .res_type = vmw_res_context, .needs_backup = true, .may_evict = true, - .prio = 3, - .dirty_prio = 3, .type_name = "guest backed contexts", .backup_placement = &vmw_mob_placement, .create = vmw_gb_context_create, @@ -102,8 +100,6 @@ static const struct vmw_res_func vmw_dx_context_func = { .res_type = vmw_res_dx_context, .needs_backup = true, .may_evict = true, - .prio = 3, - .dirty_prio = 3, .type_name = "dx contexts", .backup_placement = &vmw_mob_placement, .create = vmw_dx_context_create, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c b/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c index 8c699cb2565b..b4f6e1217c9d 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c @@ -116,8 +116,6 @@ static const struct vmw_res_func vmw_cotable_func = { .res_type = vmw_res_cotable, .needs_backup = true, .may_evict = true, - .prio = 3, - .dirty_prio = 3, .type_name = "context guest backed object tables", .backup_placement = &vmw_mob_placement, .create = vmw_cotable_create, @@ -309,7 +307,7 @@ static int vmw_cotable_unbind(struct vmw_resource *res, struct ttm_buffer_object *bo = val_buf->bo; struct vmw_fence_obj *fence; - if (!vmw_resource_mob_attached(res)) + if (list_empty(&res->mob_head)) return 0; WARN_ON_ONCE(bo->mem.mem_type != VMW_PL_MOB); @@ -455,7 +453,6 @@ static int vmw_cotable_resize(struct vmw_resource *res, size_t new_size) goto out_wait; } - vmw_resource_mob_detach(res); res->backup = buf; res->backup_size = new_size; vcotbl->size_read_back = cur_size_read_back; @@ -470,12 +467,12 @@ static int vmw_cotable_resize(struct vmw_resource *res, size_t new_size) res->backup = old_buf; res->backup_size = old_size; vcotbl->size_read_back = old_size_read_back; - vmw_resource_mob_attach(res); goto out_wait; } - vmw_resource_mob_attach(res); /* Let go of the old mob. */ + list_del(&res->mob_head); + list_add_tail(&res->mob_head, &buf->res_list); vmw_bo_unreference(&old_buf); res->id = vcotbl->type; @@ -499,7 +496,7 @@ out_wait: * is called before bind() in the validation sequence is instead used for two * things. * 1) Unscrub the cotable if it is scrubbed and still attached to a backup - * buffer. + * buffer, that is, if @res->mob_head is non-empty. * 2) Resize the cotable if needed. */ static int vmw_cotable_create(struct vmw_resource *res) @@ -515,7 +512,7 @@ static int vmw_cotable_create(struct vmw_resource *res) new_size *= 2; if (likely(new_size <= res->backup_size)) { - if (vcotbl->scrubbed && vmw_resource_mob_attached(res)) { + if (vcotbl->scrubbed && !list_empty(&res->mob_head)) { ret = vmw_cotable_unscrub(res); if (ret) return ret; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 8349a6cc126f..4ff11a0077e1 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -254,6 +254,7 @@ static int vmw_restrict_dma_mask; static int vmw_assume_16bpp; static int vmw_probe(struct pci_dev *, const struct pci_device_id *); +static void vmw_master_init(struct vmw_master *); static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, void *ptr); @@ -761,6 +762,10 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) DRM_INFO("MMIO at 0x%08x size is %u kiB\n", dev_priv->mmio_start, dev_priv->mmio_size / 1024); + vmw_master_init(&dev_priv->fbdev_master); + ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); + dev_priv->active_master = &dev_priv->fbdev_master; + dev_priv->mmio_virt = memremap(dev_priv->mmio_start, dev_priv->mmio_size, MEMREMAP_WB); @@ -828,11 +833,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) DRM_ERROR("Failed initializing TTM buffer object driver.\n"); goto out_no_bdev; } - dev_priv->vm_ops = *dev_priv->bdev.vm_ops; - dev_priv->vm_ops.fault = vmw_bo_vm_fault; - dev_priv->vm_ops.pfn_mkwrite = vmw_bo_vm_mkwrite; - dev_priv->vm_ops.page_mkwrite = vmw_bo_vm_mkwrite; - dev_priv->bdev.vm_ops = &dev_priv->vm_ops; /* * Enable VRAM, but initially don't use it until SVGA is enabled and @@ -1007,7 +1007,18 @@ static void vmw_driver_unload(struct drm_device *dev) static void vmw_postclose(struct drm_device *dev, struct drm_file *file_priv) { - struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); + struct vmw_fpriv *vmw_fp; + + vmw_fp = vmw_fpriv(file_priv); + + if (vmw_fp->locked_master) { + struct vmw_master *vmaster = + vmw_master(vmw_fp->locked_master); + + ttm_lock_set_kill(&vmaster->lock, true, SIGTERM); + ttm_vt_unlock(&vmaster->lock); + drm_master_put(&vmw_fp->locked_master); + } ttm_object_file_release(&vmw_fp->tfile); kfree(vmw_fp); @@ -1036,6 +1047,55 @@ out_no_tfile: return ret; } +static struct vmw_master *vmw_master_check(struct drm_device *dev, + struct drm_file *file_priv, + unsigned int flags) +{ + int ret; + struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); + struct vmw_master *vmaster; + + if (!drm_is_primary_client(file_priv) || !(flags & DRM_AUTH)) + return NULL; + + ret = mutex_lock_interruptible(&dev->master_mutex); + if (unlikely(ret != 0)) + return ERR_PTR(-ERESTARTSYS); + + if (drm_is_current_master(file_priv)) { + mutex_unlock(&dev->master_mutex); + return NULL; + } + + /* + * Check if we were previously master, but now dropped. In that + * case, allow at least render node functionality. + */ + if (vmw_fp->locked_master) { + mutex_unlock(&dev->master_mutex); + + if (flags & DRM_RENDER_ALLOW) + return NULL; + + DRM_ERROR("Dropped master trying to access ioctl that " + "requires authentication.\n"); + return ERR_PTR(-EACCES); + } + mutex_unlock(&dev->master_mutex); + + /* + * Take the TTM lock. Possibly sleep waiting for the authenticating + * master to become master again, or for a SIGTERM if the + * authenticating master exits. + */ + vmaster = vmw_master(file_priv->master); + ret = ttm_read_lock(&vmaster->lock, true); + if (unlikely(ret != 0)) + vmaster = ERR_PTR(ret); + + return vmaster; +} + static long vmw_generic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg, long (*ioctl_func)(struct file *, unsigned int, @@ -1044,6 +1104,7 @@ static long vmw_generic_ioctl(struct file *filp, unsigned int cmd, struct drm_file *file_priv = filp->private_data; struct drm_device *dev = file_priv->minor->dev; unsigned int nr = DRM_IOCTL_NR(cmd); + struct vmw_master *vmaster; unsigned int flags; long ret; @@ -1079,7 +1140,21 @@ static long vmw_generic_ioctl(struct file *filp, unsigned int cmd, } else if (!drm_ioctl_flags(nr, &flags)) return -EINVAL; - return ioctl_func(filp, cmd, arg); + vmaster = vmw_master_check(dev, file_priv, flags); + if (IS_ERR(vmaster)) { + ret = PTR_ERR(vmaster); + + if (ret != -ERESTARTSYS) + DRM_INFO("IOCTL ERROR Command %d, Error %ld.\n", + nr, ret); + return ret; + } + + ret = ioctl_func(filp, cmd, arg); + if (vmaster) + ttm_read_unlock(&vmaster->lock); + + return ret; out_io_encoding: DRM_ERROR("Invalid command format, ioctl %d\n", @@ -1106,10 +1181,65 @@ static void vmw_lastclose(struct drm_device *dev) { } +static void vmw_master_init(struct vmw_master *vmaster) +{ + ttm_lock_init(&vmaster->lock); +} + +static int vmw_master_create(struct drm_device *dev, + struct drm_master *master) +{ + struct vmw_master *vmaster; + + vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL); + if (unlikely(!vmaster)) + return -ENOMEM; + + vmw_master_init(vmaster); + ttm_lock_set_kill(&vmaster->lock, true, SIGTERM); + master->driver_priv = vmaster; + + return 0; +} + +static void vmw_master_destroy(struct drm_device *dev, + struct drm_master *master) +{ + struct vmw_master *vmaster = vmw_master(master); + + master->driver_priv = NULL; + kfree(vmaster); +} + static int vmw_master_set(struct drm_device *dev, struct drm_file *file_priv, bool from_open) { + struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); + struct vmw_master *active = dev_priv->active_master; + struct vmw_master *vmaster = vmw_master(file_priv->master); + int ret = 0; + + if (active) { + BUG_ON(active != &dev_priv->fbdev_master); + ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile); + if (unlikely(ret != 0)) + return ret; + + ttm_lock_set_kill(&active->lock, true, SIGTERM); + dev_priv->active_master = NULL; + } + + ttm_lock_set_kill(&vmaster->lock, false, SIGTERM); + if (!from_open) { + ttm_vt_unlock(&vmaster->lock); + BUG_ON(vmw_fp->locked_master != file_priv->master); + drm_master_put(&vmw_fp->locked_master); + } + + dev_priv->active_master = vmaster; + /* * Inform a new master that the layout may have changed while * it was gone. @@ -1124,10 +1254,31 @@ static void vmw_master_drop(struct drm_device *dev, struct drm_file *file_priv) { struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); + struct vmw_master *vmaster = vmw_master(file_priv->master); + int ret; + + /** + * Make sure the master doesn't disappear while we have + * it locked. + */ + vmw_fp->locked_master = drm_master_get(file_priv->master); + ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile); vmw_kms_legacy_hotspot_clear(dev_priv); + if (unlikely((ret != 0))) { + DRM_ERROR("Unable to lock TTM at VT switch.\n"); + drm_master_put(&vmw_fp->locked_master); + } + + ttm_lock_set_kill(&vmaster->lock, false, SIGTERM); + if (!dev_priv->enable_fb) vmw_svga_disable(dev_priv); + + dev_priv->active_master = &dev_priv->fbdev_master; + ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); + ttm_vt_unlock(&dev_priv->fbdev_master.lock); } /** @@ -1406,6 +1557,8 @@ static struct drm_driver driver = { .disable_vblank = vmw_disable_vblank, .ioctls = vmw_ioctls, .num_ioctls = ARRAY_SIZE(vmw_ioctls), + .master_create = vmw_master_create, + .master_destroy = vmw_master_destroy, .master_set = vmw_master_set, .master_drop = vmw_master_drop, .open = vmw_driver_open, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 3a358a5495e4..366dcfc1f9bb 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -44,9 +44,9 @@ #include <linux/sync_file.h> #define VMWGFX_DRIVER_NAME "vmwgfx" -#define VMWGFX_DRIVER_DATE "20190328" +#define VMWGFX_DRIVER_DATE "20180704" #define VMWGFX_DRIVER_MAJOR 2 -#define VMWGFX_DRIVER_MINOR 16 +#define VMWGFX_DRIVER_MINOR 15 #define VMWGFX_DRIVER_PATCHLEVEL 0 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024) #define VMWGFX_MAX_RELOCATIONS 2048 @@ -81,30 +81,19 @@ #define VMW_RES_SHADER ttm_driver_type4 struct vmw_fpriv { + struct drm_master *locked_master; struct ttm_object_file *tfile; bool gb_aware; /* user-space is guest-backed aware */ }; -/** - * struct vmw_buffer_object - TTM buffer object with vmwgfx additions - * @base: The TTM buffer object - * @res_tree: RB tree of resources using this buffer object as a backing MOB - * @pin_count: pin depth - * @dx_query_ctx: DX context if this buffer object is used as a DX query MOB - * @map: Kmap object for semi-persistent mappings - * @res_prios: Eviction priority counts for attached resources - * @dirty: structure for user-space dirty-tracking - */ struct vmw_buffer_object { struct ttm_buffer_object base; - struct rb_root res_tree; + struct list_head res_list; s32 pin_count; /* Not ref-counted. Protected by binding_mutex */ struct vmw_resource *dx_query_ctx; /* Protected by reservation */ struct ttm_bo_kmap_obj map; - u32 res_prios[TTM_MAX_BO_PRIORITY]; - struct vmw_bo_dirty *dirty; }; /** @@ -135,8 +124,7 @@ struct vmw_res_func; * @res_dirty: Resource contains data not yet in the backup buffer. Protected * by resource reserved. * @backup_dirty: Backup buffer contains data not yet in the HW resource. - * Protected by resource reserved. - * @coherent: Emulate coherency by tracking vm accesses. + * Protecte by resource reserved. * @backup: The backup buffer if any. Protected by resource reserved. * @backup_offset: Offset into the backup buffer if any. Protected by resource * reserved. Note that only a few resource types can have a @backup_offset @@ -145,32 +133,28 @@ struct vmw_res_func; * pin-count greater than zero. It is not on the resource LRU lists and its * backup buffer is pinned. Hence it can't be evicted. * @func: Method vtable for this resource. Immutable. - * @mob_node; Node for the MOB backup rbtree. Protected by @backup reserved. * @lru_head: List head for the LRU list. Protected by @dev_priv::resource_lock. + * @mob_head: List head for the MOB backup list. Protected by @backup reserved. * @binding_head: List head for the context binding list. Protected by * the @dev_priv::binding_mutex * @res_free: The resource destructor. * @hw_destroy: Callback to destroy the resource on the device, as part of * resource destruction. */ -struct vmw_resource_dirty; struct vmw_resource { struct kref kref; struct vmw_private *dev_priv; int id; - u32 used_prio; unsigned long backup_size; - u32 res_dirty : 1; - u32 backup_dirty : 1; - u32 coherent : 1; + bool res_dirty; + bool backup_dirty; struct vmw_buffer_object *backup; unsigned long backup_offset; unsigned long pin_count; const struct vmw_res_func *func; - struct rb_node mob_node; struct list_head lru_head; + struct list_head mob_head; struct list_head binding_head; - struct vmw_resource_dirty *dirty; void (*res_free) (struct vmw_resource *res); void (*hw_destroy) (struct vmw_resource *res); }; @@ -392,6 +376,10 @@ struct vmw_sw_context{ struct vmw_legacy_display; struct vmw_overlay; +struct vmw_master { + struct ttm_lock lock; +}; + struct vmw_vga_topology_state { uint32_t width; uint32_t height; @@ -554,8 +542,11 @@ struct vmw_private { spinlock_t svga_lock; /** - * PM management. + * Master management. */ + + struct vmw_master *active_master; + struct vmw_master fbdev_master; struct notifier_block pm_nb; bool refuse_hibernation; bool suspend_locked; @@ -604,9 +595,6 @@ struct vmw_private { /* Validation memory reservation */ struct vmw_validation_mem vvm; - - /* VM operations */ - struct vm_operations_struct vm_ops; }; static inline struct vmw_surface *vmw_res_to_srf(struct vmw_resource *res) @@ -624,6 +612,11 @@ static inline struct vmw_fpriv *vmw_fpriv(struct drm_file *file_priv) return (struct vmw_fpriv *)file_priv->driver_priv; } +static inline struct vmw_master *vmw_master(struct drm_master *master) +{ + return (struct vmw_master *) master->driver_priv; +} + /* * The locking here is fine-grained, so that it is performed once * for every read- and write operation. This is of course costly, but we @@ -676,8 +669,7 @@ extern void vmw_resource_unreference(struct vmw_resource **p_res); extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res); extern struct vmw_resource * vmw_resource_reference_unless_doomed(struct vmw_resource *res); -extern int vmw_resource_validate(struct vmw_resource *res, bool intr, - bool dirtying); +extern int vmw_resource_validate(struct vmw_resource *res, bool intr); extern int vmw_resource_reserve(struct vmw_resource *res, bool interruptible, bool no_backup); extern bool vmw_resource_needs_backup(const struct vmw_resource *res); @@ -717,23 +709,6 @@ extern void vmw_query_move_notify(struct ttm_buffer_object *bo, extern int vmw_query_readback_all(struct vmw_buffer_object *dx_query_mob); extern void vmw_resource_evict_all(struct vmw_private *dev_priv); extern void vmw_resource_unbind_list(struct vmw_buffer_object *vbo); -void vmw_resource_mob_attach(struct vmw_resource *res); -void vmw_resource_mob_detach(struct vmw_resource *res); -void vmw_resource_dirty_update(struct vmw_resource *res, pgoff_t start, - pgoff_t end); -int vmw_resources_clean(struct vmw_buffer_object *vbo, pgoff_t start, - pgoff_t end, pgoff_t *num_prefault); - -/** - * vmw_resource_mob_attached - Whether a resource currently has a mob attached - * @res: The resource - * - * Return: true if the resource has a mob attached, false otherwise. - */ -static inline bool vmw_resource_mob_attached(const struct vmw_resource *res) -{ - return !RB_EMPTY_NODE(&res->mob_node); -} /** * vmw_user_resource_noref_release - release a user resource pointer looked up @@ -812,54 +787,6 @@ static inline void vmw_user_bo_noref_release(void) ttm_base_object_noref_release(); } -/** - * vmw_bo_adjust_prio - Adjust the buffer object eviction priority - * according to attached resources - * @vbo: The struct vmw_buffer_object - */ -static inline void vmw_bo_prio_adjust(struct vmw_buffer_object *vbo) -{ - int i = ARRAY_SIZE(vbo->res_prios); - - while (i--) { - if (vbo->res_prios[i]) { - vbo->base.priority = i; - return; - } - } - - vbo->base.priority = 3; -} - -/** - * vmw_bo_prio_add - Notify a buffer object of a newly attached resource - * eviction priority - * @vbo: The struct vmw_buffer_object - * @prio: The resource priority - * - * After being notified, the code assigns the highest resource eviction priority - * to the backing buffer object (mob). - */ -static inline void vmw_bo_prio_add(struct vmw_buffer_object *vbo, int prio) -{ - if (vbo->res_prios[prio]++ == 0) - vmw_bo_prio_adjust(vbo); -} - -/** - * vmw_bo_prio_del - Notify a buffer object of a resource with a certain - * priority being removed - * @vbo: The struct vmw_buffer_object - * @prio: The resource priority - * - * After being notified, the code assigns the highest resource eviction priority - * to the backing buffer object (mob). - */ -static inline void vmw_bo_prio_del(struct vmw_buffer_object *vbo, int prio) -{ - if (--vbo->res_prios[prio] == 0) - vmw_bo_prio_adjust(vbo); -} /** * Misc Ioctl functionality - vmwgfx_ioctl.c @@ -1089,6 +1016,7 @@ void vmw_kms_cursor_snoop(struct vmw_surface *srf, int vmw_kms_write_svga(struct vmw_private *vmw_priv, unsigned width, unsigned height, unsigned pitch, unsigned bpp, unsigned depth); +void vmw_kms_idle_workqueues(struct vmw_master *vmaster); bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, uint32_t pitch, uint32_t height); @@ -1411,25 +1339,6 @@ int vmw_host_log(const char *log); DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__) /** - * VMW_DEBUG_KMS - Debug output for kernel mode-setting - * - * This macro is for debugging vmwgfx mode-setting code. - */ -#define VMW_DEBUG_KMS(fmt, ...) \ - DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__) - -/* Resource dirtying - vmwgfx_page_dirty.c */ -void vmw_bo_dirty_scan(struct vmw_buffer_object *vbo); -int vmw_bo_dirty_add(struct vmw_buffer_object *vbo); -void vmw_bo_dirty_transfer_to_res(struct vmw_resource *res); -void vmw_bo_dirty_clear_res(struct vmw_resource *res); -void vmw_bo_dirty_release(struct vmw_buffer_object *vbo); -void vmw_bo_dirty_unmap(struct vmw_buffer_object *vbo, - pgoff_t start, pgoff_t end); -vm_fault_t vmw_bo_vm_fault(struct vm_fault *vmf); -vm_fault_t vmw_bo_vm_mkwrite(struct vm_fault *vmf); - -/** * Inline helper functions */ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 319c1ca35663..33533d126277 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -2560,6 +2560,7 @@ static int vmw_cmd_dx_check_subresource(struct vmw_private *dev_priv, offsetof(typeof(*cmd), sid)); cmd = container_of(header, typeof(*cmd), header); + return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, VMW_RES_DIRTY_NONE, user_surface_converter, &cmd->sid, NULL); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index e7222fa2cfdf..b97bc8e5944b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -1462,7 +1462,7 @@ static int vmw_kms_check_display_memory(struct drm_device *dev, if (dev_priv->active_display_unit == vmw_du_screen_target && (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width || drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) { - VMW_DEBUG_KMS("Screen size not supported.\n"); + DRM_ERROR("Screen size not supported.\n"); return -EINVAL; } @@ -1486,7 +1486,7 @@ static int vmw_kms_check_display_memory(struct drm_device *dev, * limit on primary bounding box */ if (pixel_mem > dev_priv->prim_bb_mem) { - VMW_DEBUG_KMS("Combined output size too large.\n"); + DRM_ERROR("Combined output size too large.\n"); return -EINVAL; } @@ -1496,7 +1496,7 @@ static int vmw_kms_check_display_memory(struct drm_device *dev, bb_mem = (u64) bounding_box.x2 * bounding_box.y2 * 4; if (bb_mem > dev_priv->prim_bb_mem) { - VMW_DEBUG_KMS("Topology is beyond supported limits.\n"); + DRM_ERROR("Topology is beyond supported limits.\n"); return -EINVAL; } } @@ -1645,7 +1645,6 @@ static int vmw_kms_check_topology(struct drm_device *dev, struct vmw_connector_state *vmw_conn_state; if (!du->pref_active && new_crtc_state->enable) { - VMW_DEBUG_KMS("Enabling a disabled display unit\n"); ret = -EINVAL; goto clean; } @@ -1702,10 +1701,8 @@ vmw_kms_atomic_check_modeset(struct drm_device *dev, return ret; ret = vmw_kms_check_implicit(dev, state); - if (ret) { - VMW_DEBUG_KMS("Invalid implicit state\n"); + if (ret) return ret; - } if (!state->allow_modeset) return ret; @@ -2350,9 +2347,6 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, if (!arg->num_outputs) { struct drm_rect def_rect = {0, 0, 800, 600}; - VMW_DEBUG_KMS("Default layout x1 = %d y1 = %d x2 = %d y2 = %d\n", - def_rect.x1, def_rect.y1, - def_rect.x2, def_rect.y2); vmw_du_update_layout(dev_priv, 1, &def_rect); return 0; } @@ -2373,7 +2367,6 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, drm_rects = (struct drm_rect *)rects; - VMW_DEBUG_KMS("Layout count = %u\n", arg->num_outputs); for (i = 0; i < arg->num_outputs; i++) { struct drm_vmw_rect curr_rect; @@ -2390,10 +2383,6 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, drm_rects[i].x2 = curr_rect.x + curr_rect.w; drm_rects[i].y2 = curr_rect.y + curr_rect.h; - VMW_DEBUG_KMS(" x1 = %d y1 = %d x2 = %d y2 = %d\n", - drm_rects[i].x1, drm_rects[i].y1, - drm_rects[i].x2, drm_rects[i].y2); - /* * Currently this check is limiting the topology within * mode_config->max (which actually is max texture size @@ -2404,9 +2393,7 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 || drm_rects[i].x2 > mode_config->max_width || drm_rects[i].y2 > mode_config->max_height) { - VMW_DEBUG_KMS("Invalid layout %d %d %d %d\n", - drm_rects[i].x1, drm_rects[i].y1, - drm_rects[i].x2, drm_rects[i].y2); + DRM_ERROR("Invalid GUI layout.\n"); ret = -EINVAL; goto out_free; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c b/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c deleted file mode 100644 index 730c51e397dd..000000000000 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c +++ /dev/null @@ -1,472 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 OR MIT -/************************************************************************** - * - * Copyright 2019 VMware, Inc., Palo Alto, CA., USA - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE - * USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ -#include "vmwgfx_drv.h" - -/* - * Different methods for tracking dirty: - * VMW_BO_DIRTY_PAGETABLE - Scan the pagetable for hardware dirty bits - * VMW_BO_DIRTY_MKWRITE - Write-protect page table entries and record write- - * accesses in the VM mkwrite() callback - */ -enum vmw_bo_dirty_method { - VMW_BO_DIRTY_PAGETABLE, - VMW_BO_DIRTY_MKWRITE, -}; - -/* - * No dirtied pages at scan trigger a transition to the _MKWRITE method, - * similarly a certain percentage of dirty pages trigger a transition to - * the _PAGETABLE method. How many triggers should we wait for before - * changing method? - */ -#define VMW_DIRTY_NUM_CHANGE_TRIGGERS 2 - -/* Percentage to trigger a transition to the _PAGETABLE method */ -#define VMW_DIRTY_PERCENTAGE 10 - -/** - * struct vmw_bo_dirty - Dirty information for buffer objects - * @start: First currently dirty bit - * @end: Last currently dirty bit + 1 - * @method: The currently used dirty method - * @change_count: Number of consecutive method change triggers - * @ref_count: Reference count for this structure - * @bitmap_size: The size of the bitmap in bits. Typically equal to the - * nuber of pages in the bo. - * @size: The accounting size for this struct. - * @bitmap: A bitmap where each bit represents a page. A set bit means a - * dirty page. - */ -struct vmw_bo_dirty { - unsigned long start; - unsigned long end; - enum vmw_bo_dirty_method method; - unsigned int change_count; - unsigned int ref_count; - unsigned long bitmap_size; - size_t size; - unsigned long bitmap[0]; -}; - -/** - * vmw_bo_dirty_scan_pagetable - Perform a pagetable scan for dirty bits - * @vbo: The buffer object to scan - * - * Scans the pagetable for dirty bits. Clear those bits and modify the - * dirty structure with the results. This function may change the - * dirty-tracking method. - */ -static void vmw_bo_dirty_scan_pagetable(struct vmw_buffer_object *vbo) -{ - struct vmw_bo_dirty *dirty = vbo->dirty; - pgoff_t offset = drm_vma_node_start(&vbo->base.vma_node); - struct address_space *mapping = vbo->base.bdev->dev_mapping; - pgoff_t num_marked; - - num_marked = apply_as_clean(mapping, - offset, dirty->bitmap_size, - offset, &dirty->bitmap[0], - &dirty->start, &dirty->end); - if (num_marked == 0) - dirty->change_count++; - else - dirty->change_count = 0; - - if (dirty->change_count > VMW_DIRTY_NUM_CHANGE_TRIGGERS) { - dirty->change_count = 0; - dirty->method = VMW_BO_DIRTY_MKWRITE; - apply_as_wrprotect(mapping, - offset, dirty->bitmap_size); - apply_as_clean(mapping, - offset, dirty->bitmap_size, - offset, &dirty->bitmap[0], - &dirty->start, &dirty->end); - } -} - -/** - * vmw_bo_dirty_scan_mkwrite - Reset the mkwrite dirty-tracking method - * @vbo: The buffer object to scan - * - * Write-protect pages written to so that consecutive write accesses will - * trigger a call to mkwrite. - * - * This function may change the dirty-tracking method. - */ -static void vmw_bo_dirty_scan_mkwrite(struct vmw_buffer_object *vbo) -{ - struct vmw_bo_dirty *dirty = vbo->dirty; - unsigned long offset = drm_vma_node_start(&vbo->base.vma_node); - struct address_space *mapping = vbo->base.bdev->dev_mapping; - pgoff_t num_marked; - - if (dirty->end <= dirty->start) - return; - - num_marked = apply_as_wrprotect(vbo->base.bdev->dev_mapping, - dirty->start + offset, - dirty->end - dirty->start); - - if (100UL * num_marked / dirty->bitmap_size > - VMW_DIRTY_PERCENTAGE) { - dirty->change_count++; - } else { - dirty->change_count = 0; - } - - if (dirty->change_count > VMW_DIRTY_NUM_CHANGE_TRIGGERS) { - pgoff_t start = 0; - pgoff_t end = dirty->bitmap_size; - - dirty->method = VMW_BO_DIRTY_PAGETABLE; - apply_as_clean(mapping, offset, end, offset, &dirty->bitmap[0], - &start, &end); - bitmap_clear(&dirty->bitmap[0], 0, dirty->bitmap_size); - if (dirty->start < dirty->end) - bitmap_set(&dirty->bitmap[0], dirty->start, - dirty->end - dirty->start); - dirty->change_count = 0; - } -} - -/** - * vmw_bo_dirty_scan - Scan for dirty pages and add them to the dirty - * tracking structure - * @vbo: The buffer object to scan - * - * This function may change the dirty tracking method. - */ -void vmw_bo_dirty_scan(struct vmw_buffer_object *vbo) -{ - struct vmw_bo_dirty *dirty = vbo->dirty; - - if (dirty->method == VMW_BO_DIRTY_PAGETABLE) - vmw_bo_dirty_scan_pagetable(vbo); - else - vmw_bo_dirty_scan_mkwrite(vbo); -} - -/** - * vmw_bo_dirty_pre_unmap - write-protect and pick up dirty pages before - * an unmap_mapping_range operation. - * @vbo: The buffer object, - * @start: First page of the range within the buffer object. - * @end: Last page of the range within the buffer object + 1. - * - * If we're using the _PAGETABLE scan method, we may leak dirty pages - * when calling unmap_mapping_range(). This function makes sure we pick - * up all dirty pages. - */ -static void vmw_bo_dirty_pre_unmap(struct vmw_buffer_object *vbo, - pgoff_t start, pgoff_t end) -{ - struct vmw_bo_dirty *dirty = vbo->dirty; - unsigned long offset = drm_vma_node_start(&vbo->base.vma_node); - struct address_space *mapping = vbo->base.bdev->dev_mapping; - - if (dirty->method != VMW_BO_DIRTY_PAGETABLE || start >= end) - return; - - apply_as_wrprotect(mapping, start + offset, end - start); - apply_as_clean(mapping, start + offset, end - start, offset, - &dirty->bitmap[0], &dirty->start, &dirty->end); -} - -/** - * vmw_bo_dirty_unmap - Clear all ptes pointing to a range within a bo - * @vbo: The buffer object, - * @start: First page of the range within the buffer object. - * @end: Last page of the range within the buffer object + 1. - * - * This is similar to ttm_bo_unmap_virtual_locked() except it takes a subrange. - */ -void vmw_bo_dirty_unmap(struct vmw_buffer_object *vbo, - pgoff_t start, pgoff_t end) -{ - unsigned long offset = drm_vma_node_start(&vbo->base.vma_node); - struct address_space *mapping = vbo->base.bdev->dev_mapping; - - vmw_bo_dirty_pre_unmap(vbo, start, end); - unmap_shared_mapping_range(mapping, (offset + start) << PAGE_SHIFT, - (loff_t) (end - start) << PAGE_SHIFT); -} - -/** - * vmw_bo_dirty_add - Add a dirty-tracking user to a buffer object - * @vbo: The buffer object - * - * This function registers a dirty-tracking user to a buffer object. - * A user can be for example a resource or a vma in a special user-space - * mapping. - * - * Return: Zero on success, -ENOMEM on memory allocation failure. - */ -int vmw_bo_dirty_add(struct vmw_buffer_object *vbo) -{ - struct vmw_bo_dirty *dirty = vbo->dirty; - pgoff_t num_pages = vbo->base.num_pages; - size_t size, acc_size; - int ret; - static struct ttm_operation_ctx ctx = { - .interruptible = false, - .no_wait_gpu = false - }; - - if (dirty) { - dirty->ref_count++; - return 0; - } - - size = sizeof(*dirty) + BITS_TO_LONGS(num_pages) * sizeof(long); - acc_size = ttm_round_pot(size); - ret = ttm_mem_global_alloc(&ttm_mem_glob, acc_size, &ctx); - if (ret) { - VMW_DEBUG_USER("Out of graphics memory for buffer object " - "dirty tracker.\n"); - return ret; - } - dirty = kvzalloc(size, GFP_KERNEL); - if (!dirty) { - ret = -ENOMEM; - goto out_no_dirty; - } - - dirty->size = acc_size; - dirty->bitmap_size = num_pages; - dirty->start = dirty->bitmap_size; - dirty->end = 0; - dirty->ref_count = 1; - if (num_pages < PAGE_SIZE / sizeof(pte_t)) { - dirty->method = VMW_BO_DIRTY_PAGETABLE; - } else { - struct address_space *mapping = vbo->base.bdev->dev_mapping; - pgoff_t offset = drm_vma_node_start(&vbo->base.vma_node); - - dirty->method = VMW_BO_DIRTY_MKWRITE; - - /* Write-protect and then pick up already dirty bits */ - apply_as_wrprotect(mapping, offset, num_pages); - apply_as_clean(mapping, offset, num_pages, offset, - &dirty->bitmap[0], &dirty->start, &dirty->end); - } - - vbo->dirty = dirty; - - return 0; - -out_no_dirty: - ttm_mem_global_free(&ttm_mem_glob, acc_size); - return ret; -} - -/** - * vmw_bo_dirty_release - Release a dirty-tracking user from a buffer object - * @vbo: The buffer object - * - * This function releases a dirty-tracking user from a buffer object. - * If the reference count reaches zero, then the dirty-tracking object is - * freed and the pointer to it cleared. - * - * Return: Zero on success, -ENOMEM on memory allocation failure. - */ -void vmw_bo_dirty_release(struct vmw_buffer_object *vbo) -{ - struct vmw_bo_dirty *dirty = vbo->dirty; - - if (dirty && --dirty->ref_count == 0) { - size_t acc_size = dirty->size; - - kvfree(dirty); - ttm_mem_global_free(&ttm_mem_glob, acc_size); - vbo->dirty = NULL; - } -} - -/** - * vmw_bo_dirty_transfer_to_res - Pick up a resource's dirty region from - * its backing mob. - * @res: The resource - * - * This function will pick up all dirty ranges affecting the resource from - * it's backup mob, and call vmw_resource_dirty_update() once for each - * range. The transferred ranges will be cleared from the backing mob's - * dirty tracking. - */ -void vmw_bo_dirty_transfer_to_res(struct vmw_resource *res) -{ - struct vmw_buffer_object *vbo = res->backup; - struct vmw_bo_dirty *dirty = vbo->dirty; - pgoff_t start, cur, end; - unsigned long res_start = res->backup_offset; - unsigned long res_end = res->backup_offset + res->backup_size; - - WARN_ON_ONCE(res_start & ~PAGE_MASK); - res_start >>= PAGE_SHIFT; - res_end = DIV_ROUND_UP(res_end, PAGE_SIZE); - - if (res_start >= dirty->end || res_end <= dirty->start) - return; - - cur = max(res_start, dirty->start); - res_end = max(res_end, dirty->end); - while (cur < res_end) { - unsigned long num; - - start = find_next_bit(&dirty->bitmap[0], res_end, cur); - if (start >= res_end) - break; - - end = find_next_zero_bit(&dirty->bitmap[0], res_end, start + 1); - cur = end + 1; - num = end - start; - bitmap_clear(&dirty->bitmap[0], start, num); - vmw_resource_dirty_update(res, start, end); - } - - if (res_start <= dirty->start && res_end > dirty->start) - dirty->start = res_end; - if (res_start < dirty->end && res_end >= dirty->end) - dirty->end = res_start; -} - -/** - * vmw_bo_dirty_clear_res - Clear a resource's dirty region from - * its backing mob. - * @res: The resource - * - * This function will clear all dirty ranges affecting the resource from - * it's backup mob's dirty tracking. - */ -void vmw_bo_dirty_clear_res(struct vmw_resource *res) -{ - unsigned long res_start = res->backup_offset; - unsigned long res_end = res->backup_offset + res->backup_size; - struct vmw_buffer_object *vbo = res->backup; - struct vmw_bo_dirty *dirty = vbo->dirty; - - res_start >>= PAGE_SHIFT; - res_end = DIV_ROUND_UP(res_end, PAGE_SIZE); - - if (res_start >= dirty->end || res_end <= dirty->start) - return; - - res_start = max(res_start, dirty->start); - res_end = min(res_end, dirty->end); - bitmap_clear(&dirty->bitmap[0], res_start, res_end - res_start); - - if (res_start <= dirty->start && res_end > dirty->start) - dirty->start = res_end; - if (res_start < dirty->end && res_end >= dirty->end) - dirty->end = res_start; -} - -vm_fault_t vmw_bo_vm_mkwrite(struct vm_fault *vmf) -{ - struct vm_area_struct *vma = vmf->vma; - struct ttm_buffer_object *bo = (struct ttm_buffer_object *) - vma->vm_private_data; - vm_fault_t ret; - unsigned long page_offset; - struct vmw_buffer_object *vbo = - container_of(bo, typeof(*vbo), base); - - ret = ttm_bo_vm_reserve(bo, vmf); - if (ret) - return ret; - - page_offset = vmf->pgoff - drm_vma_node_start(&bo->vma_node); - if (unlikely(page_offset >= bo->num_pages)) { - ret = VM_FAULT_SIGBUS; - goto out_unlock; - } - - if (vbo->dirty && vbo->dirty->method == VMW_BO_DIRTY_MKWRITE && - !test_bit(page_offset, &vbo->dirty->bitmap[0])) { - struct vmw_bo_dirty *dirty = vbo->dirty; - - __set_bit(page_offset, &dirty->bitmap[0]); - dirty->start = min(dirty->start, page_offset); - dirty->end = max(dirty->end, page_offset + 1); - } - -out_unlock: - reservation_object_unlock(bo->resv); - return ret; -} - -vm_fault_t vmw_bo_vm_fault(struct vm_fault *vmf) -{ - struct vm_area_struct *vma = vmf->vma; - struct ttm_buffer_object *bo = (struct ttm_buffer_object *) - vma->vm_private_data; - struct vmw_buffer_object *vbo = - container_of(bo, struct vmw_buffer_object, base); - pgoff_t num_prefault; - pgprot_t prot; - vm_fault_t ret; - - ret = ttm_bo_vm_reserve(bo, vmf); - if (ret) - return ret; - - num_prefault = (vma->vm_flags & VM_RAND_READ) ? 1 : - TTM_BO_VM_NUM_PREFAULT; - - if (vbo->dirty) { - pgoff_t allowed_prefault; - unsigned long page_offset; - - page_offset = vmf->pgoff - drm_vma_node_start(&bo->vma_node); - if (page_offset >= bo->num_pages || - vmw_resources_clean(vbo, page_offset, - page_offset + PAGE_SIZE, - &allowed_prefault)) { - ret = VM_FAULT_SIGBUS; - goto out_unlock; - } - - num_prefault = min(num_prefault, allowed_prefault); - } - - /* - * If we don't track dirty using the MKWRITE method, make sure - * sure the page protection is write-enabled so we don't get - * a lot of unnecessary write faults. - */ - if (vbo->dirty && vbo->dirty->method == VMW_BO_DIRTY_MKWRITE) - prot = vma->vm_page_prot; - else - prot = vm_get_page_prot(vma->vm_flags); - - ret = ttm_bo_vm_fault_reserved(vmf, prot, num_prefault); - if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) - return ret; - -out_unlock: - reservation_object_unlock(bo->resv); - return ret; -} diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index d70ee0df5c13..1d38a8b2f2ec 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -34,51 +34,6 @@ #define VMW_RES_EVICT_ERR_COUNT 10 -/** - * vmw_resource_mob_attach - Mark a resource as attached to its backing mob - * @res: The resource - */ -void vmw_resource_mob_attach(struct vmw_resource *res) -{ - struct vmw_buffer_object *backup = res->backup; - struct rb_node **new = &backup->res_tree.rb_node, *parent = NULL; - - lockdep_assert_held(&backup->base.resv->lock.base); - res->used_prio = (res->res_dirty) ? res->func->dirty_prio : - res->func->prio; - - while (*new) { - struct vmw_resource *this = - container_of(*new, struct vmw_resource, mob_node); - - parent = *new; - new = (res->backup_offset < this->backup_offset) ? - &((*new)->rb_left) : &((*new)->rb_right); - } - - rb_link_node(&res->mob_node, parent, new); - rb_insert_color(&res->mob_node, &backup->res_tree); - - vmw_bo_prio_add(backup, res->used_prio); -} - -/** - * vmw_resource_mob_detach - Mark a resource as detached from its backing mob - * @res: The resource - */ -void vmw_resource_mob_detach(struct vmw_resource *res) -{ - struct vmw_buffer_object *backup = res->backup; - - lockdep_assert_held(&backup->base.resv->lock.base); - if (vmw_resource_mob_attached(res)) { - rb_erase(&res->mob_node, &backup->res_tree); - RB_CLEAR_NODE(&res->mob_node); - vmw_bo_prio_del(backup, res->used_prio); - } -} - - struct vmw_resource *vmw_resource_reference(struct vmw_resource *res) { kref_get(&res->kref); @@ -125,7 +80,7 @@ static void vmw_resource_release(struct kref *kref) struct ttm_buffer_object *bo = &res->backup->base; ttm_bo_reserve(bo, false, false, NULL); - if (vmw_resource_mob_attached(res) && + if (!list_empty(&res->mob_head) && res->func->unbind != NULL) { struct ttm_validate_buffer val_buf; @@ -134,11 +89,7 @@ static void vmw_resource_release(struct kref *kref) res->func->unbind(res, false, &val_buf); } res->backup_dirty = false; - vmw_resource_mob_detach(res); - if (res->dirty) - res->func->dirty_free(res); - if (res->coherent) - vmw_bo_dirty_release(res->backup); + list_del_init(&res->mob_head); ttm_bo_unreserve(bo); vmw_bo_unreference(&res->backup); } @@ -220,17 +171,14 @@ int vmw_resource_init(struct vmw_private *dev_priv, struct vmw_resource *res, res->res_free = res_free; res->dev_priv = dev_priv; res->func = func; - RB_CLEAR_NODE(&res->mob_node); INIT_LIST_HEAD(&res->lru_head); + INIT_LIST_HEAD(&res->mob_head); INIT_LIST_HEAD(&res->binding_head); res->id = -1; res->backup = NULL; res->backup_offset = 0; res->backup_dirty = false; res->res_dirty = false; - res->coherent = false; - res->used_prio = 3; - res->dirty = NULL; if (delay_id) return 0; else @@ -395,8 +343,7 @@ out_no_bo: * should be retried once resources have been freed up. */ static int vmw_resource_do_validate(struct vmw_resource *res, - struct ttm_validate_buffer *val_buf, - bool dirtying) + struct ttm_validate_buffer *val_buf) { int ret = 0; const struct vmw_res_func *func = res->func; @@ -408,47 +355,14 @@ static int vmw_resource_do_validate(struct vmw_resource *res, } if (func->bind && - ((func->needs_backup && !vmw_resource_mob_attached(res) && + ((func->needs_backup && list_empty(&res->mob_head) && val_buf->bo != NULL) || (!func->needs_backup && val_buf->bo != NULL))) { ret = func->bind(res, val_buf); if (unlikely(ret != 0)) goto out_bind_failed; if (func->needs_backup) - vmw_resource_mob_attach(res); - } - - /* - * Handle the case where the backup mob is marked coherent but - * the resource isn't. - */ - if (func->dirty_alloc && vmw_resource_mob_attached(res) && - !res->coherent) { - if (res->backup->dirty && !res->dirty) { - ret = func->dirty_alloc(res); - if (ret) - return ret; - } else if (!res->backup->dirty && res->dirty) { - func->dirty_free(res); - } - } - - /* - * Transfer the dirty regions to the resource and update - * the resource. - */ - if (res->dirty) { - if (dirtying && !res->res_dirty) { - pgoff_t start = res->backup_offset >> PAGE_SHIFT; - pgoff_t end = __KERNEL_DIV_ROUND_UP - (res->backup_offset + res->backup_size, - PAGE_SIZE); - - vmw_bo_dirty_unmap(res->backup, start, end); - } - - vmw_bo_dirty_transfer_to_res(res); - return func->dirty_sync(res); + list_add_tail(&res->mob_head, &res->backup->res_list); } return 0; @@ -488,29 +402,19 @@ void vmw_resource_unreserve(struct vmw_resource *res, if (switch_backup && new_backup != res->backup) { if (res->backup) { - vmw_resource_mob_detach(res); - if (res->coherent) - vmw_bo_dirty_release(res->backup); + lockdep_assert_held(&res->backup->base.resv->lock.base); + list_del_init(&res->mob_head); vmw_bo_unreference(&res->backup); } if (new_backup) { res->backup = vmw_bo_reference(new_backup); - - /* - * The validation code should already have added a - * dirty tracker here. - */ - WARN_ON(res->coherent && !new_backup->dirty); - - vmw_resource_mob_attach(res); + lockdep_assert_held(&new_backup->base.resv->lock.base); + list_add_tail(&res->mob_head, &new_backup->res_list); } else { res->backup = NULL; } - } else if (switch_backup && res->coherent) { - vmw_bo_dirty_release(res->backup); } - if (switch_backup) res->backup_offset = new_backup_offset; @@ -565,7 +469,7 @@ vmw_resource_check_buffer(struct ww_acquire_ctx *ticket, if (unlikely(ret != 0)) goto out_no_reserve; - if (res->func->needs_backup && !vmw_resource_mob_attached(res)) + if (res->func->needs_backup && list_empty(&res->mob_head)) return 0; backup_dirty = res->backup_dirty; @@ -670,11 +574,11 @@ static int vmw_resource_do_evict(struct ww_acquire_ctx *ticket, return ret; if (unlikely(func->unbind != NULL && - (!func->needs_backup || vmw_resource_mob_attached(res)))) { + (!func->needs_backup || !list_empty(&res->mob_head)))) { ret = func->unbind(res, res->res_dirty, &val_buf); if (unlikely(ret != 0)) goto out_no_unbind; - vmw_resource_mob_detach(res); + list_del_init(&res->mob_head); } ret = func->destroy(res); res->backup_dirty = true; @@ -691,7 +595,6 @@ out_no_unbind: * to the device. * @res: The resource to make visible to the device. * @intr: Perform waits interruptible if possible. - * @dirtying: Pending GPU operation will dirty the resource * * On succesful return, any backup DMA buffer pointed to by @res->backup will * be reserved and validated. @@ -701,8 +604,7 @@ out_no_unbind: * Return: Zero on success, -ERESTARTSYS if interrupted, negative error code * on failure. */ -int vmw_resource_validate(struct vmw_resource *res, bool intr, - bool dirtying) +int vmw_resource_validate(struct vmw_resource *res, bool intr) { int ret; struct vmw_resource *evict_res; @@ -719,7 +621,7 @@ int vmw_resource_validate(struct vmw_resource *res, bool intr, if (res->backup) val_buf.bo = &res->backup->base; do { - ret = vmw_resource_do_validate(res, &val_buf, dirtying); + ret = vmw_resource_do_validate(res, &val_buf); if (likely(ret != -EBUSY)) break; @@ -758,7 +660,7 @@ int vmw_resource_validate(struct vmw_resource *res, bool intr, if (unlikely(ret != 0)) goto out_no_validate; else if (!res->func->needs_backup && res->backup) { - WARN_ON_ONCE(vmw_resource_mob_attached(res)); + list_del_init(&res->mob_head); vmw_bo_unreference(&res->backup); } @@ -782,23 +684,22 @@ out_no_validate: */ void vmw_resource_unbind_list(struct vmw_buffer_object *vbo) { + + struct vmw_resource *res, *next; struct ttm_validate_buffer val_buf = { .bo = &vbo->base, .num_shared = 0 }; lockdep_assert_held(&vbo->base.resv->lock.base); - while (!RB_EMPTY_ROOT(&vbo->res_tree)) { - struct rb_node *node = vbo->res_tree.rb_node; - struct vmw_resource *res = - container_of(node, struct vmw_resource, mob_node); - - if (!WARN_ON_ONCE(!res->func->unbind)) - (void) res->func->unbind(res, res->res_dirty, &val_buf); + list_for_each_entry_safe(res, next, &vbo->res_list, mob_head) { + if (!res->func->unbind) + continue; + (void) res->func->unbind(res, res->res_dirty, &val_buf); res->backup_dirty = true; res->res_dirty = false; - vmw_resource_mob_detach(res); + list_del_init(&res->mob_head); } (void) ttm_bo_wait(&vbo->base, false, false); @@ -1019,7 +920,7 @@ int vmw_resource_pin(struct vmw_resource *res, bool interruptible) /* Do we really need to pin the MOB as well? */ vmw_bo_pin_reserved(vbo, true); } - ret = vmw_resource_validate(res, interruptible, true); + ret = vmw_resource_validate(res, interruptible); if (vbo) ttm_bo_unreserve(&vbo->base); if (ret) @@ -1079,101 +980,3 @@ enum vmw_res_type vmw_res_type(const struct vmw_resource *res) { return res->func->res_type; } - -/** - * vmw_resource_update_dirty - Update a resource's dirty tracker with a - * sequential range of touched backing store memory. - * @res: The resource. - * @start: The first page touched. - * @end: The last page touched + 1. - */ -void vmw_resource_dirty_update(struct vmw_resource *res, pgoff_t start, - pgoff_t end) -{ - if (res->dirty) - res->func->dirty_range_add(res, start << PAGE_SHIFT, - end << PAGE_SHIFT); -} - -/** - * vmw_resources_clean - Clean resources intersecting a mob range - * @vbo: The mob buffer object - * @start: The mob page offset starting the range - * @end: The mob page offset ending the range - * @num_prefault: Returns how many pages including the first have been - * cleaned and are ok to prefault - */ -int vmw_resources_clean(struct vmw_buffer_object *vbo, pgoff_t start, - pgoff_t end, pgoff_t *num_prefault) -{ - struct rb_node *cur = vbo->res_tree.rb_node; - struct vmw_resource *found = NULL; - unsigned long res_start = start << PAGE_SHIFT; - unsigned long res_end = end << PAGE_SHIFT; - unsigned long last_cleaned = 0; - - /* - * Find the resource with lowest backup_offset that intersects the - * range. - */ - while (cur) { - struct vmw_resource *cur_res = - container_of(cur, struct vmw_resource, mob_node); - - if (cur_res->backup_offset >= res_end) { - cur = cur->rb_left; - } else if (cur_res->backup_offset + cur_res->backup_size <= - res_start) { - cur = cur->rb_right; - } else { - found = cur_res; - cur = cur->rb_left; - /* Continue to look for resources with lower offsets */ - } - } - - /* - * In order of increasing backup_offset, clean dirty resorces - * intersecting the range. - */ - while (found) { - if (found->res_dirty) { - int ret; - - if (!found->func->clean) - return -EINVAL; - - ret = found->func->clean(found); - if (ret) - return ret; - - found->res_dirty = false; - } - last_cleaned = found->backup_offset + found->backup_size; - cur = rb_next(&found->mob_node); - if (!cur) - break; - - found = container_of(cur, struct vmw_resource, mob_node); - if (found->backup_offset >= res_end) - break; - } - - /* - * Set number of pages allowed prefaulting and fence the buffer object - */ - *num_prefault = 1; - if (last_cleaned > res_start) { - struct ttm_buffer_object *bo = &vbo->base; - - *num_prefault = __KERNEL_DIV_ROUND_UP(last_cleaned - res_start, - PAGE_SIZE); - vmw_bo_fence_single(bo, NULL); - if (bo->moving) - dma_fence_put(bo->moving); - bo->moving = dma_fence_get - (reservation_object_get_excl(bo->resv)); - } - - return 0; -} diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h index 3b7438b2d289..7e19eba0b0b8 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h @@ -71,13 +71,6 @@ struct vmw_user_resource_conv { * @commit_notify: If the resource is a command buffer managed resource, * callback to notify that a define or remove command * has been committed to the device. - * @dirty_alloc: Allocate a dirty tracker. NULL if dirty-tracking is not - * supported. - * @dirty_free: Free the dirty tracker. - * @dirty_sync: Upload the dirty mob contents to the resource. - * @dirty_add_range: Add a sequential dirty range to the resource - * dirty tracker. - * @clean: Clean the resource. */ struct vmw_res_func { enum vmw_res_type res_type; @@ -85,8 +78,6 @@ struct vmw_res_func { const char *type_name; struct ttm_placement *backup_placement; bool may_evict; - u32 prio; - u32 dirty_prio; int (*create) (struct vmw_resource *res); int (*destroy) (struct vmw_resource *res); @@ -97,12 +88,6 @@ struct vmw_res_func { struct ttm_validate_buffer *val_buf); void (*commit_notify)(struct vmw_resource *res, enum vmw_cmdbuf_res_state state); - int (*dirty_alloc)(struct vmw_resource *res); - void (*dirty_free)(struct vmw_resource *res); - int (*dirty_sync)(struct vmw_resource *res); - void (*dirty_range_add)(struct vmw_resource *res, size_t start, - size_t end); - int (*clean)(struct vmw_resource *res); }; /** diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c index e139fdfd1635..d310d21f0d54 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c @@ -95,8 +95,6 @@ static const struct vmw_res_func vmw_gb_shader_func = { .res_type = vmw_res_shader, .needs_backup = true, .may_evict = true, - .prio = 3, - .dirty_prio = 3, .type_name = "guest backed shaders", .backup_placement = &vmw_mob_placement, .create = vmw_gb_shader_create, @@ -108,9 +106,7 @@ static const struct vmw_res_func vmw_gb_shader_func = { static const struct vmw_res_func vmw_dx_shader_func = { .res_type = vmw_res_shader, .needs_backup = true, - .may_evict = true, - .prio = 3, - .dirty_prio = 3, + .may_evict = false, .type_name = "dx shaders", .backup_placement = &vmw_mob_placement, .create = vmw_dx_shader_create, @@ -427,7 +423,7 @@ static int vmw_dx_shader_create(struct vmw_resource *res) WARN_ON_ONCE(!shader->committed); - if (vmw_resource_mob_attached(res)) { + if (!list_empty(&res->mob_head)) { mutex_lock(&dev_priv->binding_mutex); ret = vmw_dx_shader_unscrub(res); mutex_unlock(&dev_priv->binding_mutex); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index 862ca44680ca..219471903bc1 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -68,20 +68,6 @@ struct vmw_surface_offset { uint32_t bo_offset; }; -/** - * vmw_surface_dirty - Surface dirty-tracker - * @cache: Cached layout information of the surface. - * @size: Accounting size for the struct vmw_surface_dirty. - * @num_subres: Number of subresources. - * @boxes: Array of SVGA3dBoxes indicating dirty regions. One per subresource. - */ -struct vmw_surface_dirty { - struct svga3dsurface_cache cache; - size_t size; - u32 num_subres; - SVGA3dBox boxes[0]; -}; - static void vmw_user_surface_free(struct vmw_resource *res); static struct vmw_resource * vmw_user_surface_base_to_res(struct ttm_base_object *base); @@ -110,13 +96,6 @@ vmw_gb_surface_reference_internal(struct drm_device *dev, struct drm_vmw_gb_surface_ref_ext_rep *rep, struct drm_file *file_priv); -static void vmw_surface_dirty_free(struct vmw_resource *res); -static int vmw_surface_dirty_alloc(struct vmw_resource *res); -static int vmw_surface_dirty_sync(struct vmw_resource *res); -static void vmw_surface_dirty_range_add(struct vmw_resource *res, size_t start, - size_t end); -static int vmw_surface_clean(struct vmw_resource *res); - static const struct vmw_user_resource_conv user_surface_conv = { .object_type = VMW_RES_SURFACE, .base_obj_to_res = vmw_user_surface_base_to_res, @@ -133,8 +112,6 @@ static const struct vmw_res_func vmw_legacy_surface_func = { .res_type = vmw_res_surface, .needs_backup = false, .may_evict = true, - .prio = 1, - .dirty_prio = 1, .type_name = "legacy surfaces", .backup_placement = &vmw_srf_placement, .create = &vmw_legacy_srf_create, @@ -147,19 +124,12 @@ static const struct vmw_res_func vmw_gb_surface_func = { .res_type = vmw_res_surface, .needs_backup = true, .may_evict = true, - .prio = 1, - .dirty_prio = 2, .type_name = "guest backed surfaces", .backup_placement = &vmw_mob_placement, .create = vmw_gb_surface_create, .destroy = vmw_gb_surface_destroy, .bind = vmw_gb_surface_bind, - .unbind = vmw_gb_surface_unbind, - .dirty_alloc = vmw_surface_dirty_alloc, - .dirty_free = vmw_surface_dirty_free, - .dirty_sync = vmw_surface_dirty_sync, - .dirty_range_add = vmw_surface_dirty_range_add, - .clean = vmw_surface_clean, + .unbind = vmw_gb_surface_unbind }; /** @@ -667,7 +637,6 @@ static void vmw_user_surface_free(struct vmw_resource *res) struct vmw_private *dev_priv = srf->res.dev_priv; uint32_t size = user_srf->size; - WARN_ON_ONCE(res->dirty); if (user_srf->master) drm_master_put(&user_srf->master); kfree(srf->offsets); @@ -946,6 +915,12 @@ vmw_surface_handle_reference(struct vmw_private *dev_priv, if (unlikely(drm_is_render_client(file_priv))) require_exist = true; + if (READ_ONCE(vmw_fpriv(file_priv)->locked_master)) { + DRM_ERROR("Locked master refused legacy " + "surface reference.\n"); + return -EACCES; + } + handle = u_handle; } @@ -1195,16 +1170,10 @@ static int vmw_gb_surface_bind(struct vmw_resource *res, cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE; cmd2->header.size = sizeof(cmd2->body); cmd2->body.sid = res->id; + res->backup_dirty = false; } vmw_fifo_commit(dev_priv, submit_size); - if (res->backup->dirty && res->backup_dirty) { - /* We've just made a full upload. Cear dirty regions. */ - vmw_bo_dirty_clear_res(res); - } - - res->backup_dirty = false; - return 0; } @@ -1669,8 +1638,7 @@ vmw_gb_surface_define_internal(struct drm_device *dev, } } } else if (req->base.drm_surface_flags & - (drm_vmw_surface_flag_create_buffer | - drm_vmw_surface_flag_coherent)) + drm_vmw_surface_flag_create_buffer) ret = vmw_user_bo_alloc(dev_priv, tfile, res->backup_size, req->base.drm_surface_flags & @@ -1684,26 +1652,6 @@ vmw_gb_surface_define_internal(struct drm_device *dev, goto out_unlock; } - if (req->base.drm_surface_flags & drm_vmw_surface_flag_coherent) { - struct vmw_buffer_object *backup = res->backup; - - ttm_bo_reserve(&backup->base, false, false, NULL); - if (!res->func->dirty_alloc) - ret = -EINVAL; - if (!ret) - ret = vmw_bo_dirty_add(backup); - if (!ret) { - res->coherent = true; - ret = res->func->dirty_alloc(res); - } - ttm_bo_unreserve(&backup->base); - if (ret) { - vmw_resource_unreference(&res); - goto out_unlock; - } - - } - tmp = vmw_resource_reference(res); ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime, req->base.drm_surface_flags & @@ -1812,338 +1760,3 @@ out_bad_resource: return ret; } - -/** - * vmw_subres_dirty_add - Add a dirty region to a subresource - * @dirty: The surfaces's dirty tracker. - * @loc_start: The location corresponding to the start of the region. - * @loc_end: The location corresponding to the end of the region. - * - * As we are assuming that @loc_start and @loc_end represent a sequential - * range of backing store memory, if the region spans multiple lines then - * regardless of the x coordinate, the full lines are dirtied. - * Correspondingly if the region spans multiple z slices, then full rather - * than partial z slices are dirtied. - */ -static void vmw_subres_dirty_add(struct vmw_surface_dirty *dirty, - const struct svga3dsurface_loc *loc_start, - const struct svga3dsurface_loc *loc_end) -{ - const struct svga3dsurface_cache *cache = &dirty->cache; - SVGA3dBox *box = &dirty->boxes[loc_start->sub_resource]; - u32 mip = loc_start->sub_resource % cache->num_mip_levels; - const struct drm_vmw_size *size = &cache->mip[mip].size; - u32 box_c2 = box->z + box->d; - - if (WARN_ON(loc_start->sub_resource >= dirty->num_subres)) - return; - - if (box->d == 0 || box->z > loc_start->z) - box->z = loc_start->z; - if (box_c2 < loc_end->z) - box->d = loc_end->z - box->z; - - if (loc_start->z + 1 == loc_end->z) { - box_c2 = box->y + box->h; - if (box->h == 0 || box->y > loc_start->y) - box->y = loc_start->y; - if (box_c2 < loc_end->y) - box->h = loc_end->y - box->y; - - if (loc_start->y + 1 == loc_end->y) { - box_c2 = box->x + box->w; - if (box->w == 0 || box->x > loc_start->x) - box->x = loc_start->x; - if (box_c2 < loc_end->x) - box->w = loc_end->x - box->x; - } else { - box->x = 0; - box->w = size->width; - } - } else { - box->y = 0; - box->h = size->height; - box->x = 0; - box->w = size->width; - } -} - -/** - * vmw_subres_dirty_full - Mark a full subresource as dirty - * @dirty: The surface's dirty tracker. - * @subres: The subresource - */ -static void vmw_subres_dirty_full(struct vmw_surface_dirty *dirty, u32 subres) -{ - const struct svga3dsurface_cache *cache = &dirty->cache; - u32 mip = subres % cache->num_mip_levels; - const struct drm_vmw_size *size = &cache->mip[mip].size; - SVGA3dBox *box = &dirty->boxes[subres]; - - box->x = 0; - box->y = 0; - box->z = 0; - box->w = size->width; - box->h = size->height; - box->d = size->depth; -} - -/* - * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for texture - * surfaces. - */ -static void vmw_surface_tex_dirty_range_add(struct vmw_resource *res, - size_t start, size_t end) -{ - struct vmw_surface_dirty *dirty = - (struct vmw_surface_dirty *) res->dirty; - size_t backup_end = res->backup_offset + res->backup_size; - struct svga3dsurface_loc loc1, loc2; - const struct svga3dsurface_cache *cache; - - start = max_t(size_t, start, res->backup_offset) - res->backup_offset; - end = min(end, backup_end) - res->backup_offset; - cache = &dirty->cache; - svga3dsurface_get_loc(cache, &loc1, start); - svga3dsurface_get_loc(cache, &loc2, end - 1); - svga3dsurface_inc_loc(cache, &loc2); - - if (loc1.sub_resource + 1 == loc2.sub_resource) { - /* Dirty range covers a single sub-resource */ - vmw_subres_dirty_add(dirty, &loc1, &loc2); - } else { - /* Dirty range covers multiple sub-resources */ - struct svga3dsurface_loc loc_min, loc_max; - u32 sub_res = loc1.sub_resource; - - svga3dsurface_max_loc(cache, loc1.sub_resource, &loc_max); - vmw_subres_dirty_add(dirty, &loc1, &loc_max); - svga3dsurface_min_loc(cache, loc2.sub_resource - 1, &loc_min); - vmw_subres_dirty_add(dirty, &loc_min, &loc2); - for (sub_res = loc1.sub_resource + 1; - sub_res < loc2.sub_resource - 1; ++sub_res) - vmw_subres_dirty_full(dirty, sub_res); - } -} - -/* - * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for buffer - * surfaces. - */ -static void vmw_surface_buf_dirty_range_add(struct vmw_resource *res, - size_t start, size_t end) -{ - struct vmw_surface_dirty *dirty = - (struct vmw_surface_dirty *) res->dirty; - const struct svga3dsurface_cache *cache = &dirty->cache; - size_t backup_end = res->backup_offset + cache->mip_chain_bytes; - SVGA3dBox *box = &dirty->boxes[0]; - u32 box_c2; - - box->h = box->d = 1; - start = max_t(size_t, start, res->backup_offset) - res->backup_offset; - end = min(end, backup_end) - res->backup_offset; - box_c2 = box->x + box->w; - if (box->w == 0 || box->x > start) - box->x = start; - if (box_c2 < end) - box->w = end - box->x; -} - -/* - * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for surfaces - */ -static void vmw_surface_dirty_range_add(struct vmw_resource *res, size_t start, - size_t end) -{ - struct vmw_surface *srf = vmw_res_to_srf(res); - - if (WARN_ON(end <= res->backup_offset || - start >= res->backup_offset + res->backup_size)) - return; - - if (srf->format == SVGA3D_BUFFER) - vmw_surface_buf_dirty_range_add(res, start, end); - else - vmw_surface_tex_dirty_range_add(res, start, end); -} - -/* - * vmw_surface_dirty_sync - The surface's dirty_sync callback. - */ -static int vmw_surface_dirty_sync(struct vmw_resource *res) -{ - struct vmw_private *dev_priv = res->dev_priv; - bool has_dx = 0; - u32 i, num_dirty; - struct vmw_surface_dirty *dirty = - (struct vmw_surface_dirty *) res->dirty; - size_t alloc_size; - const struct svga3dsurface_cache *cache = &dirty->cache; - struct { - SVGA3dCmdHeader header; - SVGA3dCmdDXUpdateSubResource body; - } *cmd1; - struct { - SVGA3dCmdHeader header; - SVGA3dCmdUpdateGBImage body; - } *cmd2; - void *cmd; - - num_dirty = 0; - for (i = 0; i < dirty->num_subres; ++i) { - const SVGA3dBox *box = &dirty->boxes[i]; - - if (box->d) - num_dirty++; - } - - if (!num_dirty) - goto out; - - alloc_size = num_dirty * ((has_dx) ? sizeof(*cmd1) : sizeof(*cmd2)); - cmd = VMW_FIFO_RESERVE(dev_priv, alloc_size); - if (!cmd) - return -ENOMEM; - - cmd1 = cmd; - cmd2 = cmd; - - for (i = 0; i < dirty->num_subres; ++i) { - const SVGA3dBox *box = &dirty->boxes[i]; - - if (!box->d) - continue; - - /* - * DX_UPDATE_SUBRESOURCE is aware of array surfaces. - * UPDATE_GB_IMAGE is not. - */ - if (has_dx) { - cmd1->header.id = SVGA_3D_CMD_DX_UPDATE_SUBRESOURCE; - cmd1->header.size = sizeof(cmd1->body); - cmd1->body.sid = res->id; - cmd1->body.subResource = i; - cmd1->body.box = *box; - cmd1++; - } else { - cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE; - cmd2->header.size = sizeof(cmd2->body); - cmd2->body.image.sid = res->id; - cmd2->body.image.face = i / cache->num_mip_levels; - cmd2->body.image.mipmap = i - - (cache->num_mip_levels * cmd2->body.image.face); - cmd2->body.box = *box; - cmd2++; - } - - } - vmw_fifo_commit(dev_priv, alloc_size); - out: - memset(&dirty->boxes[0], 0, sizeof(dirty->boxes[0]) * - dirty->num_subres); - - return 0; -} - -/* - * vmw_surface_dirty_alloc - The surface's dirty_alloc callback. - */ -static int vmw_surface_dirty_alloc(struct vmw_resource *res) -{ - struct vmw_surface *srf = vmw_res_to_srf(res); - struct vmw_surface_dirty *dirty; - u32 num_layers = 1; - u32 num_mip; - u32 num_subres; - u32 num_samples; - size_t dirty_size, acc_size; - static struct ttm_operation_ctx ctx = { - .interruptible = false, - .no_wait_gpu = false - }; - int ret; - - if (srf->array_size) - num_layers = srf->array_size; - else if (srf->flags & SVGA3D_SURFACE_CUBEMAP) - num_layers *= SVGA3D_MAX_SURFACE_FACES; - - num_mip = srf->mip_levels[0]; - if (!num_mip) - num_mip = 1; - - num_subres = num_layers * num_mip; - dirty_size = sizeof(*dirty) + num_subres * sizeof(dirty->boxes[0]); - acc_size = ttm_round_pot(dirty_size); - ret = ttm_mem_global_alloc(vmw_mem_glob(res->dev_priv), - acc_size, &ctx); - if (ret) { - VMW_DEBUG_USER("Out of graphics memory for surface " - "dirty tracker.\n"); - return ret; - } - - dirty = kvzalloc(dirty_size, GFP_KERNEL); - if (!dirty) { - ret = -ENOMEM; - goto out_no_dirty; - } - - num_samples = max_t(u32, 1, srf->multisample_count); - ret = svga3dsurface_setup_cache(&srf->base_size, srf->format, num_mip, - num_layers, num_samples, &dirty->cache); - if (ret) - goto out_no_cache; - - dirty->num_subres = num_subres; - dirty->size = acc_size; - res->dirty = (struct vmw_resource_dirty *) dirty; - - return 0; - -out_no_cache: - kvfree(dirty); -out_no_dirty: - ttm_mem_global_free(vmw_mem_glob(res->dev_priv), acc_size); - return ret; -} - -/* - * vmw_surface_dirty_free - The surface's dirty_free callback - */ -static void vmw_surface_dirty_free(struct vmw_resource *res) -{ - struct vmw_surface_dirty *dirty = - (struct vmw_surface_dirty *) res->dirty; - size_t acc_size = dirty->size; - - kvfree(dirty); - ttm_mem_global_free(vmw_mem_glob(res->dev_priv), acc_size); - res->dirty = NULL; -} - -/* - * vmw_surface_clean - The surface's clean callback - */ -static int vmw_surface_clean(struct vmw_resource *res) -{ - struct vmw_private *dev_priv = res->dev_priv; - size_t alloc_size; - struct { - SVGA3dCmdHeader header; - SVGA3dCmdReadbackGBSurface body; - } *cmd; - - alloc_size = sizeof(*cmd); - cmd = VMW_FIFO_RESERVE(dev_priv, alloc_size); - if (!cmd) - return -ENOMEM; - - cmd->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE; - cmd->header.size = sizeof(cmd->body); - cmd->body.sid = res->id; - vmw_fifo_commit(dev_priv, alloc_size); - - return 0; -} diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_validation.c b/drivers/gpu/drm/vmwgfx/vmwgfx_validation.c index 9aaf807ed73c..f611b2290a1b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_validation.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_validation.c @@ -33,8 +33,6 @@ * struct vmw_validation_bo_node - Buffer object validation metadata. * @base: Metadata used for TTM reservation- and validation. * @hash: A hash entry used for the duplicate detection hash table. - * @coherent_count: If switching backup buffers, number of new coherent - * resources that will have this buffer as a backup buffer. * @as_mob: Validate as mob. * @cpu_blit: Validate for cpu blit access. * @@ -44,7 +42,6 @@ struct vmw_validation_bo_node { struct ttm_validate_buffer base; struct drm_hash_item hash; - unsigned int coherent_count; u32 as_mob : 1; u32 cpu_blit : 1; }; @@ -462,19 +459,6 @@ int vmw_validation_res_reserve(struct vmw_validation_context *ctx, if (ret) goto out_unreserve; } - - if (val->switching_backup && val->new_backup && - res->coherent) { - struct vmw_validation_bo_node *bo_node = - vmw_validation_find_bo_dup(ctx, - val->new_backup); - - if (WARN_ON(!bo_node)) { - ret = -EINVAL; - goto out_unreserve; - } - bo_node->coherent_count++; - } } return 0; @@ -578,9 +562,6 @@ int vmw_validation_bo_validate(struct vmw_validation_context *ctx, bool intr) int ret; list_for_each_entry(entry, &ctx->bo_list, base.head) { - struct vmw_buffer_object *vbo = - container_of(entry->base.bo, typeof(*vbo), base); - if (entry->cpu_blit) { struct ttm_operation_ctx ctx = { .interruptible = intr, @@ -595,27 +576,6 @@ int vmw_validation_bo_validate(struct vmw_validation_context *ctx, bool intr) } if (ret) return ret; - - /* - * Rather than having the resource code allocating the bo - * dirty tracker in resource_unreserve() where we can't fail, - * Do it here when validating the buffer object. - */ - if (entry->coherent_count) { - unsigned int coherent_count = entry->coherent_count; - - while (coherent_count) { - ret = vmw_bo_dirty_add(vbo); - if (ret) - return ret; - - coherent_count--; - } - entry->coherent_count -= coherent_count; - } - - if (vbo->dirty) - vmw_bo_dirty_scan(vbo); } return 0; } @@ -641,8 +601,7 @@ int vmw_validation_res_validate(struct vmw_validation_context *ctx, bool intr) struct vmw_resource *res = val->res; struct vmw_buffer_object *backup = res->backup; - ret = vmw_resource_validate(res, intr, val->dirty_set && - val->dirty); + ret = vmw_resource_validate(res, intr); if (ret) { if (ret != -ERESTARTSYS) DRM_ERROR("Failed to validate resource.\n"); @@ -869,34 +828,3 @@ int vmw_validation_preload_res(struct vmw_validation_context *ctx, ctx->mem_size_left += size; return 0; } - -/** - * vmw_validation_bo_backoff - Unreserve buffer objects registered with a - * validation context - * @ctx: The validation context - * - * This function unreserves the buffer objects previously reserved using - * vmw_validation_bo_reserve. It's typically used as part of an error path - */ -void vmw_validation_bo_backoff(struct vmw_validation_context *ctx) -{ - struct vmw_validation_bo_node *entry; - - /* - * Switching coherent resource backup buffers failed. - * Release corresponding buffer object dirty trackers. - */ - list_for_each_entry(entry, &ctx->bo_list, base.head) { - if (entry->coherent_count) { - unsigned int coherent_count = entry->coherent_count; - struct vmw_buffer_object *vbo = - container_of(entry->base.bo, typeof(*vbo), - base); - - while (coherent_count--) - vmw_bo_dirty_release(vbo); - } - } - - ttm_eu_backoff_reservation(&ctx->ticket, &ctx->bo_list); -} diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_validation.h b/drivers/gpu/drm/vmwgfx/vmwgfx_validation.h index fd83e017c2a5..1d2322ad6fd5 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_validation.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_validation.h @@ -173,6 +173,20 @@ vmw_validation_bo_reserve(struct vmw_validation_context *ctx, } /** + * vmw_validation_bo_backoff - Unreserve buffer objects registered with a + * validation context + * @ctx: The validation context + * + * This function unreserves the buffer objects previously reserved using + * vmw_validation_bo_reserve. It's typically used as part of an error path + */ +static inline void +vmw_validation_bo_backoff(struct vmw_validation_context *ctx) +{ + ttm_eu_backoff_reservation(&ctx->ticket, &ctx->bo_list); +} + +/** * vmw_validation_bo_fence - Unreserve and fence buffer objects registered * with a validation context * @ctx: The validation context @@ -254,6 +268,4 @@ int vmw_validation_preload_res(struct vmw_validation_context *ctx, unsigned int size); void vmw_validation_res_set_dirty(struct vmw_validation_context *ctx, void *val_private, u32 dirty); -void vmw_validation_bo_backoff(struct vmw_validation_context *ctx); - #endif |