diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_pm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_pm.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index a61de1f9ff64..da35bd7f38dc 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -32,6 +32,28 @@ static void radeon_pm_idle_work_handler(struct work_struct *work); static int radeon_debugfs_pm_init(struct radeon_device *rdev); +static void radeon_unmap_vram_bos(struct radeon_device *rdev) +{ + struct radeon_bo *bo, *n; + + if (list_empty(&rdev->gem.objects)) + return; + + list_for_each_entry_safe(bo, n, &rdev->gem.objects, list) { + if (bo->tbo.mem.mem_type == TTM_PL_VRAM) + ttm_bo_unmap_virtual(&bo->tbo); + } + + if (rdev->gart.table.vram.robj) + ttm_bo_unmap_virtual(&rdev->gart.table.vram.robj->tbo); + + if (rdev->stollen_vga_memory) + ttm_bo_unmap_virtual(&rdev->stollen_vga_memory->tbo); + + if (rdev->r600_blit.shader_obj) + ttm_bo_unmap_virtual(&rdev->r600_blit.shader_obj->tbo); +} + static void radeon_pm_set_clocks(struct radeon_device *rdev, int static_switch) { int i; @@ -48,6 +70,10 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev, int static_switch) rdev->irq.gui_idle = false; radeon_irq_set(rdev); + mutex_lock(&rdev->vram_mutex); + + radeon_unmap_vram_bos(rdev); + if (!static_switch) { for (i = 0; i < rdev->num_crtc; i++) { if (rdev->pm.active_crtcs & (1 << i)) { @@ -67,6 +93,8 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev, int static_switch) } } } + + mutex_unlock(&rdev->vram_mutex); /* update display watermarks based on new power state */ radeon_update_bandwidth_info(rdev); |