Merge tag 'drm-fixes-for-4.8-rc4' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "A bunch of fixes covering i915, amdgpu, one tegra and some core DRM
  ones.  Nothing too strange at this point"

* tag 'drm-fixes-for-4.8-rc4' of git://people.freedesktop.org/~airlied/linux: (21 commits)
  drm/atomic: Don't potentially reset color_mgmt_changed on successive property updates.
  drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION
  drm/amdgpu: skip TV/CV in display parsing
  drm/amdgpu: avoid a possible array overflow
  drm/amdgpu: fix lru size grouping v2
  drm/tegra: dsi: Enhance runtime power management
  drm/i915: Fix botched merge that downgrades CSR versions.
  drm/i915/skl: Ensure pipes with changed wms get added to the state
  drm/i915/gen9: Only copy WM results for changed pipes to skl_hw
  drm/i915/skl: Add support for the SAGV, fix underrun hangs
  drm/i915/gen6+: Interpret mailbox error flags
  drm/i915: Reattach comment, complete type specification
  drm/i915: Unconditionally flush any chipset buffers before execbuf
  drm/i915/gen9: Drop invalid WARN() during data rate calculation
  drm/i915/gen9: Initialize intel_state->active_crtcs during WM sanitization (v2)
  drm: Reject page_flip for !DRIVER_MODESET
  drm/amdgpu: fix timeout value check in amd_sched_job_recovery
  drm/amdgpu: fix sdma_v2_4_ring_test_ib
  drm/amdgpu: fix amdgpu_move_blit on 32bit systems
  drm/radeon: fix radeon_move_blit on 32bit systems
  ...

1 files changed, 10 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 9b61c8ba7aaf..716f2afeb6a9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -251,8 +251,8 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
 
 	adev = amdgpu_get_adev(bo->bdev);
 	ring = adev->mman.buffer_funcs_ring;
-	old_start = old_mem->start << PAGE_SHIFT;
-	new_start = new_mem->start << PAGE_SHIFT;
+	old_start = (u64)old_mem->start << PAGE_SHIFT;
+	new_start = (u64)new_mem->start << PAGE_SHIFT;
 
 	switch (old_mem->mem_type) {
 	case TTM_PL_VRAM:
@@ -950,6 +950,8 @@ static struct list_head *amdgpu_ttm_lru_tail(struct ttm_buffer_object *tbo)
 	struct list_head *res = lru->lru[tbo->mem.mem_type];
 
 	lru->lru[tbo->mem.mem_type] = &tbo->lru;
+	while ((++lru)->lru[tbo->mem.mem_type] == res)
+		lru->lru[tbo->mem.mem_type] = &tbo->lru;
 
 	return res;
 }
@@ -960,6 +962,8 @@ static struct list_head *amdgpu_ttm_swap_lru_tail(struct ttm_buffer_object *tbo)
 	struct list_head *res = lru->swap_lru;
 
 	lru->swap_lru = &tbo->swap;
+	while ((++lru)->swap_lru == res)
+		lru->swap_lru = &tbo->swap;
 
 	return res;
 }
@@ -1011,6 +1015,10 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
 		lru->swap_lru = &adev->mman.bdev.glob->swap_lru;
 	}
 
+	for (j = 0; j < TTM_NUM_MEM_TYPES; ++j)
+		adev->mman.guard.lru[j] = NULL;
+	adev->mman.guard.swap_lru = NULL;
+
 	adev->mman.initialized = true;
 	r = ttm_bo_init_mm(&adev->mman.bdev, TTM_PL_VRAM,
 				adev->mc.real_vram_size >> PAGE_SHIFT);