diff options
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/Makefile | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/ttm_lock.c | 194 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/ttm_lock.h | 218 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 31 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_context.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_fb.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_shader.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_simple_resource.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 17 |
15 files changed, 6 insertions, 535 deletions
diff --git a/drivers/gpu/drm/vmwgfx/Makefile b/drivers/gpu/drm/vmwgfx/Makefile index 9f5743013cbb..09f6dcac768b 100644 --- a/drivers/gpu/drm/vmwgfx/Makefile +++ b/drivers/gpu/drm/vmwgfx/Makefile @@ -9,7 +9,7 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.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_streamoutput.o \ - ttm_object.o ttm_lock.o ttm_memory.o + ttm_object.o ttm_memory.o vmwgfx-$(CONFIG_DRM_FBDEV_EMULATION) += vmwgfx_fb.o vmwgfx-$(CONFIG_TRANSPARENT_HUGEPAGE) += vmwgfx_thp.o diff --git a/drivers/gpu/drm/vmwgfx/ttm_lock.c b/drivers/gpu/drm/vmwgfx/ttm_lock.c deleted file mode 100644 index 5971c72e6d10..000000000000 --- a/drivers/gpu/drm/vmwgfx/ttm_lock.c +++ /dev/null @@ -1,194 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 OR MIT */ -/************************************************************************** - * - * Copyright (c) 2007-2009 VMware, Inc., Palo Alto, CA., USA - * All Rights Reserved. - * - * 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. - * - **************************************************************************/ -/* - * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> - */ - -#include <linux/atomic.h> -#include <linux/errno.h> -#include <linux/wait.h> -#include <linux/sched/signal.h> -#include "ttm_lock.h" -#include "ttm_object.h" - -#define TTM_WRITE_LOCK_PENDING (1 << 0) -#define TTM_VT_LOCK_PENDING (1 << 1) -#define TTM_SUSPEND_LOCK_PENDING (1 << 2) -#define TTM_VT_LOCK (1 << 3) -#define TTM_SUSPEND_LOCK (1 << 4) - -void ttm_lock_init(struct ttm_lock *lock) -{ - spin_lock_init(&lock->lock); - init_waitqueue_head(&lock->queue); - lock->rw = 0; - lock->flags = 0; -} - -void ttm_read_unlock(struct ttm_lock *lock) -{ - spin_lock(&lock->lock); - if (--lock->rw == 0) - wake_up_all(&lock->queue); - spin_unlock(&lock->lock); -} - -static bool __ttm_read_lock(struct ttm_lock *lock) -{ - bool locked = false; - - spin_lock(&lock->lock); - if (lock->rw >= 0 && lock->flags == 0) { - ++lock->rw; - locked = true; - } - spin_unlock(&lock->lock); - return locked; -} - -int ttm_read_lock(struct ttm_lock *lock, bool interruptible) -{ - int ret = 0; - - if (interruptible) - ret = wait_event_interruptible(lock->queue, - __ttm_read_lock(lock)); - else - wait_event(lock->queue, __ttm_read_lock(lock)); - return ret; -} - -static bool __ttm_read_trylock(struct ttm_lock *lock, bool *locked) -{ - bool block = true; - - *locked = false; - - spin_lock(&lock->lock); - if (lock->rw >= 0 && lock->flags == 0) { - ++lock->rw; - block = false; - *locked = true; - } else if (lock->flags == 0) { - block = false; - } - spin_unlock(&lock->lock); - - return !block; -} - -int ttm_read_trylock(struct ttm_lock *lock, bool interruptible) -{ - int ret = 0; - bool locked; - - if (interruptible) - ret = wait_event_interruptible - (lock->queue, __ttm_read_trylock(lock, &locked)); - else - wait_event(lock->queue, __ttm_read_trylock(lock, &locked)); - - if (unlikely(ret != 0)) { - BUG_ON(locked); - return ret; - } - - return (locked) ? 0 : -EBUSY; -} - -void ttm_write_unlock(struct ttm_lock *lock) -{ - spin_lock(&lock->lock); - lock->rw = 0; - wake_up_all(&lock->queue); - spin_unlock(&lock->lock); -} - -static bool __ttm_write_lock(struct ttm_lock *lock) -{ - bool locked = false; - - spin_lock(&lock->lock); - if (lock->rw == 0 && ((lock->flags & ~TTM_WRITE_LOCK_PENDING) == 0)) { - lock->rw = -1; - lock->flags &= ~TTM_WRITE_LOCK_PENDING; - locked = true; - } else { - lock->flags |= TTM_WRITE_LOCK_PENDING; - } - spin_unlock(&lock->lock); - return locked; -} - -int ttm_write_lock(struct ttm_lock *lock, bool interruptible) -{ - int ret = 0; - - if (interruptible) { - ret = wait_event_interruptible(lock->queue, - __ttm_write_lock(lock)); - if (unlikely(ret != 0)) { - spin_lock(&lock->lock); - lock->flags &= ~TTM_WRITE_LOCK_PENDING; - wake_up_all(&lock->queue); - spin_unlock(&lock->lock); - } - } else - wait_event(lock->queue, __ttm_write_lock(lock)); - - return ret; -} - -void ttm_suspend_unlock(struct ttm_lock *lock) -{ - spin_lock(&lock->lock); - lock->flags &= ~TTM_SUSPEND_LOCK; - wake_up_all(&lock->queue); - spin_unlock(&lock->lock); -} - -static bool __ttm_suspend_lock(struct ttm_lock *lock) -{ - bool locked = false; - - spin_lock(&lock->lock); - if (lock->rw == 0) { - lock->flags &= ~TTM_SUSPEND_LOCK_PENDING; - lock->flags |= TTM_SUSPEND_LOCK; - locked = true; - } else { - lock->flags |= TTM_SUSPEND_LOCK_PENDING; - } - spin_unlock(&lock->lock); - return locked; -} - -void ttm_suspend_lock(struct ttm_lock *lock) -{ - wait_event(lock->queue, __ttm_suspend_lock(lock)); -} diff --git a/drivers/gpu/drm/vmwgfx/ttm_lock.h b/drivers/gpu/drm/vmwgfx/ttm_lock.h deleted file mode 100644 index af8b28ca546f..000000000000 --- a/drivers/gpu/drm/vmwgfx/ttm_lock.h +++ /dev/null @@ -1,218 +0,0 @@ -/************************************************************************** - * - * Copyright (c) 2007-2009 VMware, Inc., Palo Alto, CA., USA - * All Rights Reserved. - * - * 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. - * - **************************************************************************/ -/* - * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> - */ - -/** @file ttm_lock.h - * This file implements a simple replacement for the buffer manager use - * of the DRM heavyweight hardware lock. - * The lock is a read-write lock. Taking it in read mode and write mode - * is relatively fast, and intended for in-kernel use only. - * - * The vt mode is used only when there is a need to block all - * user-space processes from validating buffers. - * It's allowed to leave kernel space with the vt lock held. - * If a user-space process dies while having the vt-lock, - * it will be released during the file descriptor release. The vt lock - * excludes write lock and read lock. - * - * The suspend mode is used to lock out all TTM users when preparing for - * and executing suspend operations. - * - */ - -#ifndef _TTM_LOCK_H_ -#define _TTM_LOCK_H_ - -#include <linux/atomic.h> -#include <linux/wait.h> - -#include "ttm_object.h" - -/** - * struct ttm_lock - * - * @base: ttm base object used solely to release the lock if the client - * holding the lock dies. - * @queue: Queue for processes waiting for lock change-of-status. - * @lock: Spinlock protecting some lock members. - * @rw: Read-write lock counter. Protected by @lock. - * @flags: Lock state. Protected by @lock. - */ - -struct ttm_lock { - struct ttm_base_object base; - wait_queue_head_t queue; - spinlock_t lock; - int32_t rw; - uint32_t flags; -}; - - -/** - * ttm_lock_init - * - * @lock: Pointer to a struct ttm_lock - * Initializes the lock. - */ -extern void ttm_lock_init(struct ttm_lock *lock); - -/** - * ttm_read_unlock - * - * @lock: Pointer to a struct ttm_lock - * - * Releases a read lock. - */ -extern void ttm_read_unlock(struct ttm_lock *lock); - -/** - * ttm_read_lock - * - * @lock: Pointer to a struct ttm_lock - * @interruptible: Interruptible sleeping while waiting for a lock. - * - * Takes the lock in read mode. - * Returns: - * -ERESTARTSYS If interrupted by a signal and interruptible is true. - */ -extern int ttm_read_lock(struct ttm_lock *lock, bool interruptible); - -/** - * ttm_read_trylock - * - * @lock: Pointer to a struct ttm_lock - * @interruptible: Interruptible sleeping while waiting for a lock. - * - * Tries to take the lock in read mode. If the lock is already held - * in write mode, the function will return -EBUSY. If the lock is held - * in vt or suspend mode, the function will sleep until these modes - * are unlocked. - * - * Returns: - * -EBUSY The lock was already held in write mode. - * -ERESTARTSYS If interrupted by a signal and interruptible is true. - */ -extern int ttm_read_trylock(struct ttm_lock *lock, bool interruptible); - -/** - * ttm_write_unlock - * - * @lock: Pointer to a struct ttm_lock - * - * Releases a write lock. - */ -extern void ttm_write_unlock(struct ttm_lock *lock); - -/** - * ttm_write_lock - * - * @lock: Pointer to a struct ttm_lock - * @interruptible: Interruptible sleeping while waiting for a lock. - * - * Takes the lock in write mode. - * Returns: - * -ERESTARTSYS If interrupted by a signal and interruptible is true. - */ -extern int ttm_write_lock(struct ttm_lock *lock, bool interruptible); - -/** - * ttm_lock_downgrade - * - * @lock: Pointer to a struct ttm_lock - * - * Downgrades a write lock to a read lock. - */ -extern void ttm_lock_downgrade(struct ttm_lock *lock); - -/** - * ttm_suspend_lock - * - * @lock: Pointer to a struct ttm_lock - * - * Takes the lock in suspend mode. Excludes read and write mode. - */ -extern void ttm_suspend_lock(struct ttm_lock *lock); - -/** - * ttm_suspend_unlock - * - * @lock: Pointer to a struct ttm_lock - * - * Releases a suspend lock - */ -extern void ttm_suspend_unlock(struct ttm_lock *lock); - -/** - * ttm_vt_lock - * - * @lock: Pointer to a struct ttm_lock - * @interruptible: Interruptible sleeping while waiting for a lock. - * @tfile: Pointer to a struct ttm_object_file to register the lock with. - * - * Takes the lock in vt mode. - * Returns: - * -ERESTARTSYS If interrupted by a signal and interruptible is true. - * -ENOMEM: Out of memory when locking. - */ -extern int ttm_vt_lock(struct ttm_lock *lock, bool interruptible, - struct ttm_object_file *tfile); - -/** - * ttm_vt_unlock - * - * @lock: Pointer to a struct ttm_lock - * - * Releases a vt lock. - * Returns: - * -EINVAL If the lock was not held. - */ -extern int ttm_vt_unlock(struct ttm_lock *lock); - -/** - * ttm_write_unlock - * - * @lock: Pointer to a struct ttm_lock - * - * Releases a write lock. - */ -extern void ttm_write_unlock(struct ttm_lock *lock); - -/** - * ttm_write_lock - * - * @lock: Pointer to a struct ttm_lock - * @interruptible: Interruptible sleeping while waiting for a lock. - * - * Takes the lock in write mode. - * Returns: - * -ERESTARTSYS If interrupted by a signal and interruptible is true. - */ -extern int ttm_write_lock(struct ttm_lock *lock, bool interruptible); - -#endif diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c index 587314d57991..4aa97387d27d 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c @@ -96,10 +96,6 @@ int vmw_bo_pin_in_placement(struct vmw_private *dev_priv, int ret; uint32_t new_flags; - ret = ttm_write_lock(&dev_priv->reservation_sem, interruptible); - if (unlikely(ret != 0)) - return ret; - vmw_execbuf_release_pinned_bo(dev_priv); ret = ttm_bo_reserve(bo, interruptible, false, NULL); @@ -116,9 +112,7 @@ int vmw_bo_pin_in_placement(struct vmw_private *dev_priv, vmw_bo_pin_reserved(buf, true); ttm_bo_unreserve(bo); - err: - ttm_write_unlock(&dev_priv->reservation_sem); return ret; } @@ -144,10 +138,6 @@ int vmw_bo_pin_in_vram_or_gmr(struct vmw_private *dev_priv, int ret; uint32_t new_flags; - ret = ttm_write_lock(&dev_priv->reservation_sem, interruptible); - if (unlikely(ret != 0)) - return ret; - vmw_execbuf_release_pinned_bo(dev_priv); ret = ttm_bo_reserve(bo, interruptible, false, NULL); @@ -172,7 +162,6 @@ out_unreserve: ttm_bo_unreserve(bo); err: - ttm_write_unlock(&dev_priv->reservation_sem); return ret; } @@ -228,10 +217,6 @@ int vmw_bo_pin_in_start_of_vram(struct vmw_private *dev_priv, placement.num_busy_placement = 1; placement.busy_placement = &place; - ret = ttm_write_lock(&dev_priv->reservation_sem, interruptible); - if (unlikely(ret != 0)) - return ret; - vmw_execbuf_release_pinned_bo(dev_priv); ret = ttm_bo_reserve(bo, interruptible, false, NULL); if (unlikely(ret != 0)) @@ -263,7 +248,6 @@ int vmw_bo_pin_in_start_of_vram(struct vmw_private *dev_priv, ttm_bo_unreserve(bo); err_unlock: - ttm_write_unlock(&dev_priv->reservation_sem); return ret; } @@ -287,10 +271,6 @@ int vmw_bo_unpin(struct vmw_private *dev_priv, struct ttm_buffer_object *bo = &buf->base; int ret; - ret = ttm_read_lock(&dev_priv->reservation_sem, interruptible); - if (unlikely(ret != 0)) - return ret; - ret = ttm_bo_reserve(bo, interruptible, false, NULL); if (unlikely(ret != 0)) goto err; @@ -300,7 +280,6 @@ int vmw_bo_unpin(struct vmw_private *dev_priv, ttm_bo_unreserve(bo); err: - ttm_read_unlock(&dev_priv->reservation_sem); return ret; } @@ -906,10 +885,6 @@ int vmw_bo_alloc_ioctl(struct drm_device *dev, void *data, uint32_t handle; int ret; - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - return ret; - ret = vmw_user_bo_alloc(dev_priv, vmw_fpriv(file_priv)->tfile, req->size, false, &handle, &vbo, NULL); @@ -924,7 +899,6 @@ int vmw_bo_alloc_ioctl(struct drm_device *dev, void *data, vmw_bo_unreference(&vbo); out_no_bo: - ttm_read_unlock(&dev_priv->reservation_sem); return ret; } @@ -1119,10 +1093,6 @@ int vmw_dumb_create(struct drm_file *file_priv, args->pitch = args->width * ((args->bpp + 7) / 8); args->size = args->pitch * args->height; - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - return ret; - ret = vmw_user_bo_alloc(dev_priv, vmw_fpriv(file_priv)->tfile, args->size, false, &args->handle, &vbo, NULL); @@ -1131,7 +1101,6 @@ int vmw_dumb_create(struct drm_file *file_priv, vmw_bo_unreference(&vbo); out_no_bo: - ttm_read_unlock(&dev_priv->reservation_sem); return ret; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_context.c b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c index 4a5a3e246216..3ed9914cb994 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_context.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c @@ -748,10 +748,6 @@ static int vmw_context_define(struct drm_device *dev, void *data, ((dev_priv->has_mob) ? vmw_cmdbuf_res_man_size() : 0) + + VMW_IDA_ACC_SIZE + TTM_OBJ_EXTRA_SIZE; - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - return ret; - ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), vmw_user_context_size, &ttm_opt_ctx); @@ -759,7 +755,7 @@ static int vmw_context_define(struct drm_device *dev, void *data, if (ret != -ERESTARTSYS) DRM_ERROR("Out of graphics memory for context" " creation.\n"); - goto out_unlock; + goto out_ret; } ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); @@ -767,7 +763,7 @@ static int vmw_context_define(struct drm_device *dev, void *data, ttm_mem_global_free(vmw_mem_glob(dev_priv), vmw_user_context_size); ret = -ENOMEM; - goto out_unlock; + goto out_ret; } res = &ctx->res; @@ -780,7 +776,7 @@ static int vmw_context_define(struct drm_device *dev, void *data, ret = vmw_context_init(dev_priv, res, vmw_user_context_free, dx); if (unlikely(ret != 0)) - goto out_unlock; + goto out_ret; tmp = vmw_resource_reference(&ctx->res); ret = ttm_base_object_init(tfile, &ctx->base, false, VMW_RES_CONTEXT, @@ -794,8 +790,7 @@ static int vmw_context_define(struct drm_device *dev, void *data, arg->cid = ctx->base.handle; out_err: vmw_resource_unreference(&res); -out_unlock: - ttm_read_unlock(&dev_priv->reservation_sem); +out_ret: return ret; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 1b27d7f7fcfa..22a2874116c9 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -708,7 +708,6 @@ static int vmw_driver_load(struct vmw_private *dev_priv, u32 pci_id) mutex_init(&dev_priv->cmdbuf_mutex); mutex_init(&dev_priv->binding_mutex); - ttm_lock_init(&dev_priv->reservation_sem); spin_lock_init(&dev_priv->resource_lock); spin_lock_init(&dev_priv->hw_lock); spin_lock_init(&dev_priv->waiter_lock); @@ -966,6 +965,7 @@ static int vmw_driver_load(struct vmw_private *dev_priv, u32 pci_id) DRM_INFO("SM4_1 support available.\n"); if (dev_priv->sm_type == VMW_SM_4) DRM_INFO("SM4 support available.\n"); + DRM_INFO("Running without reservation semaphore\n"); snprintf(host_log, sizeof(host_log), "vmwgfx: Module Version: %d.%d.%d", VMWGFX_DRIVER_MAJOR, VMWGFX_DRIVER_MINOR, @@ -1191,9 +1191,7 @@ static void __vmw_svga_enable(struct vmw_private *dev_priv) */ void vmw_svga_enable(struct vmw_private *dev_priv) { - (void) ttm_read_lock(&dev_priv->reservation_sem, false); __vmw_svga_enable(dev_priv); - ttm_read_unlock(&dev_priv->reservation_sem); } /** @@ -1238,7 +1236,6 @@ void vmw_svga_disable(struct vmw_private *dev_priv) * */ vmw_kms_lost_device(&dev_priv->drm); - ttm_write_lock(&dev_priv->reservation_sem, false); if (ttm_resource_manager_used(man)) { if (ttm_resource_manager_evict_all(&dev_priv->bdev, man)) DRM_ERROR("Failed evicting VRAM buffers.\n"); @@ -1247,7 +1244,6 @@ void vmw_svga_disable(struct vmw_private *dev_priv) SVGA_REG_ENABLE_HIDE | SVGA_REG_ENABLE_ENABLE); } - ttm_write_unlock(&dev_priv->reservation_sem); } static void vmw_remove(struct pci_dev *pdev) @@ -1287,14 +1283,12 @@ static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, * Once user-space processes have been frozen, we can release * the lock again. */ - ttm_suspend_lock(&dev_priv->reservation_sem); dev_priv->suspend_locked = true; break; case PM_POST_HIBERNATION: case PM_POST_RESTORE: if (READ_ONCE(dev_priv->suspend_locked)) { dev_priv->suspend_locked = false; - ttm_suspend_unlock(&dev_priv->reservation_sem); } break; default: @@ -1353,20 +1347,16 @@ static int vmw_pm_freeze(struct device *kdev) int ret; /* - * Unlock for vmw_kms_suspend. * No user-space processes should be running now. */ - ttm_suspend_unlock(&dev_priv->reservation_sem); ret = vmw_kms_suspend(&dev_priv->drm); if (ret) { - ttm_suspend_lock(&dev_priv->reservation_sem); DRM_ERROR("Failed to freeze modesetting.\n"); return ret; } if (dev_priv->enable_fb) vmw_fb_off(dev_priv); - ttm_suspend_lock(&dev_priv->reservation_sem); vmw_execbuf_release_pinned_bo(dev_priv); vmw_resource_evict_all(dev_priv); vmw_release_device_early(dev_priv); @@ -1379,7 +1369,6 @@ static int vmw_pm_freeze(struct device *kdev) vmw_fifo_resource_inc(dev_priv); WARN_ON(vmw_request_device_late(dev_priv)); dev_priv->suspend_locked = false; - ttm_suspend_unlock(&dev_priv->reservation_sem); if (dev_priv->suspend_state) vmw_kms_resume(dev); if (dev_priv->enable_fb) @@ -1416,7 +1405,6 @@ static int vmw_pm_restore(struct device *kdev) vmw_fence_fifo_up(dev_priv->fman); dev_priv->suspend_locked = false; - ttm_suspend_unlock(&dev_priv->reservation_sem); if (dev_priv->suspend_state) vmw_kms_resume(&dev_priv->drm); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index ffddccff867b..2fb6898ceca9 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -40,7 +40,6 @@ #include <drm/ttm/ttm_bo_driver.h> #include <drm/ttm/ttm_execbuf_util.h> -#include "ttm_lock.h" #include "ttm_object.h" #include "vmwgfx_fence.h" @@ -594,11 +593,6 @@ struct vmw_private { atomic_t num_fifo_resources; /* - * Replace this with an rwsem as soon as we have down_xx_interruptible() - */ - struct ttm_lock reservation_sem; - - /* * Query processing. These members * are protected by the cmdbuf mutex. */ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index ca5360efa172..3ad07657b7d2 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -4443,10 +4443,6 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data, goto out; } - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - return ret; - ret = vmw_execbuf_process(file_priv, dev_priv, (void __user *)(unsigned long)arg->commands, NULL, arg->command_size, arg->throttle_us, @@ -4454,7 +4450,6 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data, (void __user *)(unsigned long)arg->fence_rep, NULL, arg->flags); - ttm_read_unlock(&dev_priv->reservation_sem); if (unlikely(ret != 0)) goto out; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c index 33f07abfc3ae..d18c6a56e3dc 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c @@ -195,7 +195,6 @@ static void vmw_fb_dirty_flush(struct work_struct *work) if (!cur_fb) goto out_unlock; - (void) ttm_read_lock(&vmw_priv->reservation_sem, false); (void) ttm_bo_reserve(&vbo->base, false, false, NULL); virtual = vmw_bo_map_and_cache(vbo); if (!virtual) @@ -254,7 +253,6 @@ static void vmw_fb_dirty_flush(struct work_struct *work) out_unreserve: ttm_bo_unreserve(&vbo->base); - ttm_read_unlock(&vmw_priv->reservation_sem); if (w && h) { WARN_ON_ONCE(par->set_fb->funcs->dirty(cur_fb, NULL, 0, 0, &clip, 1)); @@ -396,8 +394,6 @@ static int vmw_fb_create_bo(struct vmw_private *vmw_priv, struct vmw_buffer_object *vmw_bo; int ret; - (void) ttm_write_lock(&vmw_priv->reservation_sem, false); - vmw_bo = kmalloc(sizeof(*vmw_bo), GFP_KERNEL); if (!vmw_bo) { ret = -ENOMEM; @@ -412,12 +408,8 @@ static int vmw_fb_create_bo(struct vmw_private *vmw_priv, goto err_unlock; /* init frees the buffer on failure */ *out = vmw_bo; - ttm_write_unlock(&vmw_priv->reservation_sem); - - return 0; err_unlock: - ttm_write_unlock(&vmw_priv->reservation_sem); return ret; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c index b36032964b2f..6763d0638450 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c @@ -302,10 +302,6 @@ int vmw_present_ioctl(struct drm_device *dev, void *data, } vfb = vmw_framebuffer_to_vfb(fb); - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - goto out_no_ttm_lock; - ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid, user_surface_converter, &res); @@ -322,8 +318,6 @@ int vmw_present_ioctl(struct drm_device *dev, void *data, vmw_surface_unreference(&surface); out_no_surface: - ttm_read_unlock(&dev_priv->reservation_sem); -out_no_ttm_lock: drm_framebuffer_put(fb); out_no_fb: drm_modeset_unlock_all(dev); @@ -391,15 +385,10 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data, goto out_no_ttm_lock; } - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - goto out_no_ttm_lock; - ret = vmw_kms_readback(dev_priv, file_priv, vfb, user_fence_rep, clips, num_clips); - ttm_read_unlock(&dev_priv->reservation_sem); out_no_ttm_lock: drm_framebuffer_put(fb); out_no_fb: diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index abbca8b0b3c5..67f693acea5f 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -1008,12 +1008,6 @@ static int vmw_framebuffer_bo_dirty(struct drm_framebuffer *framebuffer, drm_modeset_lock_all(&dev_priv->drm); - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) { - drm_modeset_unlock_all(&dev_priv->drm); - return ret; - } - if (!num_clips) { num_clips = 1; clips = &norect; @@ -1037,7 +1031,6 @@ static int vmw_framebuffer_bo_dirty(struct drm_framebuffer *framebuffer, } vmw_cmd_flush(dev_priv, false); - ttm_read_unlock(&dev_priv->reservation_sem); drm_modeset_unlock_all(&dev_priv->drm); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 35f02958ee2c..d5da28be938a 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -990,7 +990,6 @@ int vmw_resource_pin(struct vmw_resource *res, bool interruptible) struct vmw_private *dev_priv = res->dev_priv; int ret; - ttm_write_lock(&dev_priv->reservation_sem, interruptible); mutex_lock(&dev_priv->cmdbuf_mutex); ret = vmw_resource_reserve(res, interruptible, false); if (ret) @@ -1029,7 +1028,6 @@ out_no_validate: vmw_resource_unreserve(res, false, false, false, NULL, 0UL); out_no_reserve: mutex_unlock(&dev_priv->cmdbuf_mutex); - ttm_write_unlock(&dev_priv->reservation_sem); return ret; } @@ -1047,7 +1045,6 @@ void vmw_resource_unpin(struct vmw_resource *res) struct vmw_private *dev_priv = res->dev_priv; int ret; - (void) ttm_read_lock(&dev_priv->reservation_sem, false); mutex_lock(&dev_priv->cmdbuf_mutex); ret = vmw_resource_reserve(res, false, true); @@ -1065,7 +1062,6 @@ void vmw_resource_unpin(struct vmw_resource *res) vmw_resource_unreserve(res, false, false, false, NULL, 0UL); mutex_unlock(&dev_priv->cmdbuf_mutex); - ttm_read_unlock(&dev_priv->reservation_sem); } /** diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c index a0db06564013..b391975871a5 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c @@ -876,15 +876,9 @@ static int vmw_shader_define(struct drm_device *dev, struct drm_file *file_priv, goto out_bad_arg; } - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - goto out_bad_arg; - ret = vmw_user_shader_alloc(dev_priv, buffer, size, offset, shader_type, num_input_sig, num_output_sig, tfile, shader_handle); - - ttm_read_unlock(&dev_priv->reservation_sem); out_bad_arg: vmw_bo_unreference(&buffer); return ret; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_simple_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_simple_resource.c index 73e9a487e659..33b69a70cfe3 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_simple_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_simple_resource.c @@ -162,13 +162,8 @@ vmw_simple_resource_create_ioctl(struct drm_device *dev, void *data, account_size = ttm_round_pot(alloc_size) + VMW_IDA_ACC_SIZE + TTM_OBJ_EXTRA_SIZE; - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (ret) - return ret; - ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), account_size, &ctx); - ttm_read_unlock(&dev_priv->reservation_sem); if (ret) { if (ret != -ERESTARTSYS) DRM_ERROR("Out of graphics memory for %s" diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index beab3e19d8e2..4e08cd7855e3 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -779,10 +779,6 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, return -EINVAL; } - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - return ret; - ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), size, &ctx); if (unlikely(ret != 0)) { @@ -913,7 +909,6 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, rep->sid = user_srf->prime.base.handle; vmw_resource_unreference(&res); - ttm_read_unlock(&dev_priv->reservation_sem); return 0; out_no_copy: kfree(srf->offsets); @@ -924,7 +919,6 @@ out_no_sizes: out_no_user_srf: ttm_mem_global_free(vmw_mem_glob(dev_priv), size); out_unlock: - ttm_read_unlock(&dev_priv->reservation_sem); return ret; } @@ -1542,10 +1536,6 @@ vmw_gb_surface_define_internal(struct drm_device *dev, if (drm_is_primary_client(file_priv)) user_srf->master = drm_master_get(file_priv->master); - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - return ret; - res = &user_srf->srf.res; if (req->base.buffer_handle != SVGA3D_INVALID_ID) { @@ -1627,7 +1617,6 @@ vmw_gb_surface_define_internal(struct drm_device *dev, vmw_resource_unreference(&res); out_unlock: - ttm_read_unlock(&dev_priv->reservation_sem); return ret; } @@ -2125,10 +2114,6 @@ int vmw_gb_surface_define(struct vmw_private *dev_priv, if (req->sizes != NULL) return -EINVAL; - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - return ret; - ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), user_accounting_size, &ctx); if (ret != 0) { @@ -2192,13 +2177,11 @@ int vmw_gb_surface_define(struct vmw_private *dev_priv, */ ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); - ttm_read_unlock(&dev_priv->reservation_sem); return ret; out_no_user_srf: ttm_mem_global_free(vmw_mem_glob(dev_priv), user_accounting_size); out_unlock: - ttm_read_unlock(&dev_priv->reservation_sem); return ret; } |