Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux

* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (307 commits)
  drm/nouveau/pm: fix build with HWMON off
  gma500: silence gcc warnings in mid_get_vbt_data()
  drm/ttm: fix condition (and vs or)
  drm/radeon: double lock typo in radeon_vm_bo_rmv()
  drm/radeon: use after free in radeon_vm_bo_add()
  drm/sis|via: don't return stack garbage from free_mem ioctl
  drm/radeon/kms: remove pointless CS flags priority struct
  drm/radeon/kms: check if vm is supported in VA ioctl
  drm: introduce drm_can_sleep and use in intel/radeon drivers. (v2)
  radeon: Fix disabling PCI bus mastering on big endian hosts.
  ttm: fix agp since ttm tt rework
  agp: Fix multi-line warning message whitespace
  drm/ttm/dma: Fix accounting error when calling ttm_mem_global_free_page and don't try to free freed pages.
  drm/ttm/dma: Only call set_pages_array_wb when the page is not in WB pool.
  drm/radeon/kms: sync across multiple rings when doing bo moves v3
  drm/radeon/kms: Add support for multi-ring sync in CS ioctl (v2)
  drm/radeon: GPU virtual memory support v22
  drm: make DRM_UNLOCKED ioctls with their own mutex
  drm: no need to hold global mutex for static data
  drm/radeon/benchmark: common modes sweep ignores 640x480@32
  ...

Fix up trivial conflicts in radeon/evergreen.c and vmwgfx/vmwgfx_kms.c

1 files changed, 178 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c b/drivers/gpu/drm/radeon/radeon_semaphore.c
new file mode 100644
index 000000000000..61dd4e3c9209
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_semaphore.c
@@ -0,0 +1,178 @@
+/*
+ * Copyright 2011 Christian König.
+ * 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 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/*
+ * Authors:
+ *    Christian König <deathsimple@vodafone.de>
+ */
+#include "drmP.h"
+#include "drm.h"
+#include "radeon.h"
+
+static int radeon_semaphore_add_bo(struct radeon_device *rdev)
+{
+	struct radeon_semaphore_bo *bo;
+	unsigned long irq_flags;
+	uint64_t gpu_addr;
+	uint32_t *cpu_ptr;
+	int r, i;
+
+
+	bo = kmalloc(sizeof(struct radeon_semaphore_bo), GFP_KERNEL);
+	if (bo == NULL) {
+		return -ENOMEM;
+	}
+	INIT_LIST_HEAD(&bo->free);
+	INIT_LIST_HEAD(&bo->list);
+	bo->nused = 0;
+
+	r = radeon_ib_get(rdev, 0, &bo->ib, RADEON_SEMAPHORE_BO_SIZE);
+	if (r) {
+		dev_err(rdev->dev, "failed to get a bo after 5 retry\n");
+		kfree(bo);
+		return r;
+	}
+	gpu_addr = rdev->ib_pool.sa_manager.gpu_addr;
+	gpu_addr += bo->ib->sa_bo.offset;
+	cpu_ptr = rdev->ib_pool.sa_manager.cpu_ptr;
+	cpu_ptr += (bo->ib->sa_bo.offset >> 2);
+	for (i = 0; i < (RADEON_SEMAPHORE_BO_SIZE/8); i++) {
+		bo->semaphores[i].gpu_addr = gpu_addr;
+		bo->semaphores[i].cpu_ptr = cpu_ptr;
+		bo->semaphores[i].bo = bo;
+		list_add_tail(&bo->semaphores[i].list, &bo->free);
+		gpu_addr += 8;
+		cpu_ptr += 2;
+	}
+	write_lock_irqsave(&rdev->semaphore_drv.lock, irq_flags);
+	list_add_tail(&bo->list, &rdev->semaphore_drv.bo);
+	write_unlock_irqrestore(&rdev->semaphore_drv.lock, irq_flags);
+	return 0;
+}
+
+static void radeon_semaphore_del_bo_locked(struct radeon_device *rdev,
+					   struct radeon_semaphore_bo *bo)
+{
+	radeon_sa_bo_free(rdev, &bo->ib->sa_bo);
+	radeon_fence_unref(&bo->ib->fence);
+	list_del(&bo->list);
+	kfree(bo);
+}
+
+void radeon_semaphore_shrink_locked(struct radeon_device *rdev)
+{
+	struct radeon_semaphore_bo *bo, *n;
+
+	if (list_empty(&rdev->semaphore_drv.bo)) {
+		return;
+	}
+	/* only shrink if first bo has free semaphore */
+	bo = list_first_entry(&rdev->semaphore_drv.bo, struct radeon_semaphore_bo, list);
+	if (list_empty(&bo->free)) {
+		return;
+	}
+	list_for_each_entry_safe_continue(bo, n, &rdev->semaphore_drv.bo, list) {
+		if (bo->nused)
+			continue;
+		radeon_semaphore_del_bo_locked(rdev, bo);
+	}
+}
+
+int radeon_semaphore_create(struct radeon_device *rdev,
+			    struct radeon_semaphore **semaphore)
+{
+	struct radeon_semaphore_bo *bo;
+	unsigned long irq_flags;
+	bool do_retry = true;
+	int r;
+
+retry:
+	*semaphore = NULL;
+	write_lock_irqsave(&rdev->semaphore_drv.lock, irq_flags);
+	list_for_each_entry(bo, &rdev->semaphore_drv.bo, list) {
+		if (list_empty(&bo->free))
+			continue;
+		*semaphore = list_first_entry(&bo->free, struct radeon_semaphore, list);
+		(*semaphore)->cpu_ptr[0] = 0;
+		(*semaphore)->cpu_ptr[1] = 0;
+		list_del(&(*semaphore)->list);
+		bo->nused++;
+		break;
+	}
+	write_unlock_irqrestore(&rdev->semaphore_drv.lock, irq_flags);
+
+	if (*semaphore == NULL) {
+		if (do_retry) {
+			do_retry = false;
+			r = radeon_semaphore_add_bo(rdev);
+			if (r)
+				return r;
+			goto retry;
+		}
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring,
+			          struct radeon_semaphore *semaphore)
+{
+	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, false);
+}
+
+void radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring,
+			        struct radeon_semaphore *semaphore)
+{
+	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, true);
+}
+
+void radeon_semaphore_free(struct radeon_device *rdev,
+			   struct radeon_semaphore *semaphore)
+{
+	unsigned long irq_flags;
+
+	write_lock_irqsave(&rdev->semaphore_drv.lock, irq_flags);
+	semaphore->bo->nused--;
+	list_add_tail(&semaphore->list, &semaphore->bo->free);
+	radeon_semaphore_shrink_locked(rdev);
+	write_unlock_irqrestore(&rdev->semaphore_drv.lock, irq_flags);
+}
+
+void radeon_semaphore_driver_fini(struct radeon_device *rdev)
+{
+	struct radeon_semaphore_bo *bo, *n;
+	unsigned long irq_flags;
+
+	write_lock_irqsave(&rdev->semaphore_drv.lock, irq_flags);
+	/* we force to free everything */
+	list_for_each_entry_safe(bo, n, &rdev->semaphore_drv.bo, list) {
+		if (!list_empty(&bo->free)) {
+			dev_err(rdev->dev, "still in use semaphore\n");
+		}
+		radeon_semaphore_del_bo_locked(rdev, bo);
+	}
+	write_unlock_irqrestore(&rdev->semaphore_drv.lock, irq_flags);
+}