| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Wed, 25 Mar 2015 14:01:40 +0000
From: Luis Henriques <luis.henriques@...onical.com>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
kernel-team@...ts.ubuntu.com
Cc: Thomas Hellstrom <thellstrom@...are.com>,
Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 127/165] drm/vmwgfx: Reorder device takedown somewhat
3.16.7-ckt9 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Thomas Hellstrom <thellstrom@...are.com>
commit 3458390b9f0ba784481d23134798faee27b5f16f upstream.
To take down the MOB and GMR memory types, the driver may have to issue
fence objects and thus make sure that the fence manager is taken down
after those memory types.
Reorder device init accordingly.
Signed-off-by: Thomas Hellstrom <thellstrom@...are.com>
Reviewed-by: Sinclair Yeh <syeh@...are.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 77 +++++++++++++++++++------------------
1 file changed, 40 insertions(+), 37 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 68e45146e27f..9a03ee69f756 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -735,32 +735,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
goto out_err1;
}
- ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
- (dev_priv->vram_size >> PAGE_SHIFT));
- if (unlikely(ret != 0)) {
- DRM_ERROR("Failed initializing memory manager for VRAM.\n");
- goto out_err2;
- }
-
- dev_priv->has_gmr = true;
- if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
- refuse_dma || ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
- VMW_PL_GMR) != 0) {
- DRM_INFO("No GMR memory available. "
- "Graphics memory resources are very limited.\n");
- dev_priv->has_gmr = false;
- }
-
- if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
- dev_priv->has_mob = true;
- if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_MOB,
- VMW_PL_MOB) != 0) {
- DRM_INFO("No MOB memory available. "
- "3D will be disabled.\n");
- dev_priv->has_mob = false;
- }
- }
-
dev_priv->mmio_mtrr = arch_phys_wc_add(dev_priv->mmio_start,
dev_priv->mmio_size);
@@ -823,6 +797,33 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
goto out_no_fman;
}
+
+ ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
+ (dev_priv->vram_size >> PAGE_SHIFT));
+ if (unlikely(ret != 0)) {
+ DRM_ERROR("Failed initializing memory manager for VRAM.\n");
+ goto out_no_vram;
+ }
+
+ dev_priv->has_gmr = true;
+ if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
+ refuse_dma || ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
+ VMW_PL_GMR) != 0) {
+ DRM_INFO("No GMR memory available. "
+ "Graphics memory resources are very limited.\n");
+ dev_priv->has_gmr = false;
+ }
+
+ if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
+ dev_priv->has_mob = true;
+ if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_MOB,
+ VMW_PL_MOB) != 0) {
+ DRM_INFO("No MOB memory available. "
+ "3D will be disabled.\n");
+ dev_priv->has_mob = false;
+ }
+ }
+
vmw_kms_save_vga(dev_priv);
/* Start kms and overlay systems, needs fifo. */
@@ -848,6 +849,12 @@ out_no_fifo:
vmw_kms_close(dev_priv);
out_no_kms:
vmw_kms_restore_vga(dev_priv);
+ if (dev_priv->has_mob)
+ (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
+ if (dev_priv->has_gmr)
+ (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
+ (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
+out_no_vram:
vmw_fence_manager_takedown(dev_priv->fman);
out_no_fman:
if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
@@ -863,12 +870,6 @@ out_err4:
iounmap(dev_priv->mmio_virt);
out_err3:
arch_phys_wc_del(dev_priv->mmio_mtrr);
- if (dev_priv->has_mob)
- (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
- if (dev_priv->has_gmr)
- (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
- (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
-out_err2:
(void)ttm_bo_device_release(&dev_priv->bdev);
out_err1:
vmw_ttm_global_release(dev_priv);
@@ -898,6 +899,13 @@ static int vmw_driver_unload(struct drm_device *dev)
}
vmw_kms_close(dev_priv);
vmw_overlay_close(dev_priv);
+
+ if (dev_priv->has_mob)
+ (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
+ if (dev_priv->has_gmr)
+ (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
+ (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
+
vmw_fence_manager_takedown(dev_priv->fman);
if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
drm_irq_uninstall(dev_priv->dev);
@@ -909,11 +917,6 @@ static int vmw_driver_unload(struct drm_device *dev)
ttm_object_device_release(&dev_priv->tdev);
iounmap(dev_priv->mmio_virt);
arch_phys_wc_del(dev_priv->mmio_mtrr);
- if (dev_priv->has_mob)
- (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
- if (dev_priv->has_gmr)
- (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
- (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
(void)ttm_bo_device_release(&dev_priv->bdev);
vmw_ttm_global_release(dev_priv);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists