aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/vmwgfx/ttm_lock.c
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2021-05-19 09:20:49 +1000
committerDave Airlie <airlied@redhat.com>2021-05-19 09:22:56 +1000
commit3a3ca7265316cc8eafaad1c50804a70a08ad2ef6 (patch)
tree824ee767428b03dd4ca0bb2225f96e8bfdef2acb /drivers/gpu/drm/vmwgfx/ttm_lock.c
parentLinux 5.13-rc2 (diff)
parentMAINTAINERS: Add Xinhui Pan as another AMDGPU contact (diff)
downloadlinux-dev-3a3ca7265316cc8eafaad1c50804a70a08ad2ef6.tar.xz
linux-dev-3a3ca7265316cc8eafaad1c50804a70a08ad2ef6.zip
Merge tag 'drm-misc-next-2021-05-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.14: UAPI Changes: * drm: Disable connector force-probing for non-master clients * drm: Enforce consistency between IN_FORMATS property and cap + related driver cleanups * drm/amdgpu: Track devices, process info and fence info via /proc/<pid>/fdinfo * drm/ioctl: Mark AGP-related ioctls as legacy * drm/ttm: Provide tt_shrink file to trigger shrinker via debugfs; Cross-subsystem Changes: * fbdev/efifb: Special handling of non-PCI devices * fbdev/imxfb: Fix error message Core Changes: * drm: Add connector helper to attach HDR-metadata property and convert drivers * drm: Add connector helper to compare HDR-metadata and convert drivers * drm: Add conenctor helper to attach colorspace property * drm: Signal colorimetry in HDMI infoframe * drm: Support pitch for destination buffers; Add blitter function with generic format conversion * drm: Remove struct drm_device.pdev and update legacy drivers * drm: Remove obsolete DRM_KMS_FB_HELPER config option in core and drivers * drm: Remove obsolete drm_pci_alloc/drm_pci_free * drm/aperture: Add helpers for aperture ownership and convert drivers, replaces rsp fbdev helpers * drm/agp: Mark DRM AGP code as legacy and convert legacy drivers * drm/atomic-helpers: Cleanups * drm/dp: Handle downstream port counts of 0 correctly; AUX channel fixes; Use drm_err_*/drm_dbg_*(); Cleanups * drm/dp_dual_mode: Use drm_err_*/drm_dbg_*() * drm/dp_mst: Use drm_err_*/drm_dbg_*(); Use Extended Base Receiver Capability DPCD space * drm/gem-ttm-helper: Provide helper for dumb_map_offset and convert drivers * drm/panel: Use sysfs_emit; panel-simple: Use runtime PM, Power up panel when reading EDID, Cache EDID, Cleanups; Lms397KF04: DT bindings * drm/pci: Mark AGP helpers as legacy * drm/print: Handle NULL for DRM devices gracefully * drm/scheduler: Change scheduled fence track * drm/ttm: Don't count SG BOs against pages_limit; Warn about freeing pinned BOs; Fix error handling if no BO can be swapped out; Move special handling of non-GEM drivers into vmwgfx; Move page_alignment into the BO; Set drm-misc as TTM tree in MAINTAINERS; Cleanup ttm_agp_backend; Add ttm_sys_manager for system domain; Cleanups Driver Changes: * drm: Don't set allow_fb_modifiers explictly in drivers * drm/amdgpu: Pin/unpin fixes wrt to TTM; Use bo->base.size instead of mem->num_pages * drm/ast: Use managed pcim_iomap(); Fix EDID retrieval with DP501 * drm/bridge: MHDP8546: HDCP support + DT bindings, Register DP AUX channel with userspace; Sil8620: Fix module dependencies; dw-hdmi: Add option to not load CEC driver; Fix stopping in drm_bridge_chain_pre_enable(); Ti-sn65dsi86: Fix refclk handling, Break GPIO and MIPI-to-eDP into subdrivers, Use pm_runtime autosuspend, cleanups; It66121: Add driver + DT bindings; Adv7511: Support I2S IEC958 encoding; Anx7625: fix power-on delay; Nwi-dsi: Modesetting fixes; Cleanups * drm/bochs: Support screen blanking * drm/gma500: Cleanups * drm/gud: Cleanups * drm/i915: Use correct max source link rate for MST * drm/kmb: Cleanups * drm/meson: Disable dw-hdmi CEC driver * drm/nouveau: Pin/unpin fixes wrt to TTM; Use bo->base.size instead of mem->num_pages; Register AUX adapters after their connectors * drm/qxl: Fix shadow BO unpin * drm/radeon: Duplicate some DRM AGP code to uncouple from legacy drivers * drm/simpledrm: Add a generic DRM driver for simple-framebuffer devices * drm/tiny: Fix log spam if probe function gets deferred * drm/vc4: Add support for HDR-metadata property; Cleanups * drm/virtio: Create dumb BOs as guest blobs; * drm/vkms: Use managed drmm_universal_plane_alloc(); Add XRGB plane composition; Add overlay support * drm/vmwgfx: Enable console with DRM_FBDEV_EMULATION; Fix CPU updates of coherent multisample surfaces; Remove reservation semaphore; Add initial SVGA3 support; Support amd64; Use 1-based IDR; Use min_t(); Cleanups Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/YJvkD523evviED01@linux-uq9g.fritz.box
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/ttm_lock.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/ttm_lock.c194
1 files changed, 0 insertions, 194 deletions
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));
-}