diff options
| -rw-r--r-- | drivers/gpu/drm/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_drv.c | 36 | ||||
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_drv.h | 18 | ||||
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_main.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_gem.c | 4 |
6 files changed, 64 insertions, 4 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 1168351267fd..bfdadc3667e0 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -95,6 +95,7 @@ config DRM_KMS_FB_HELPER config DRM_DEBUG_DP_MST_TOPOLOGY_REFS bool "Enable refcount backtrace history in the DP MST helpers" + depends on STACKTRACE_SUPPORT select STACKDEPOT depends on DRM_KMS_HELPER depends on DEBUG_KERNEL diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index ae5809a1f19a..273dd80fabf3 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3176,9 +3176,11 @@ int drm_dp_update_payload_part1(struct drm_dp_mst_topology_mgr *mgr) drm_dp_mst_topology_put_port(port); } - for (i = 0; i < mgr->max_payloads; i++) { - if (mgr->payloads[i].payload_state != DP_PAYLOAD_DELETE_LOCAL) + for (i = 0; i < mgr->max_payloads; /* do nothing */) { + if (mgr->payloads[i].payload_state != DP_PAYLOAD_DELETE_LOCAL) { + i++; continue; + } DRM_DEBUG_KMS("removing payload %d\n", i); for (j = i; j < mgr->max_payloads - 1; j++) { diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c index 397f8b0a9af8..d43951caeea0 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.c +++ b/drivers/gpu/drm/mgag200/mgag200_drv.c @@ -30,6 +30,8 @@ module_param_named(modeset, mgag200_modeset, int, 0400); static struct drm_driver driver; static const struct pci_device_id pciidlist[] = { + { PCI_VENDOR_ID_MATROX, 0x522, PCI_VENDOR_ID_SUN, 0x4852, 0, 0, + G200_SE_A | MGAG200_FLAG_HW_BUG_NO_STARTADD}, { PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A }, { PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B }, { PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV }, @@ -60,6 +62,35 @@ static void mga_pci_remove(struct pci_dev *pdev) DEFINE_DRM_GEM_FOPS(mgag200_driver_fops); +static bool mgag200_pin_bo_at_0(const struct mga_device *mdev) +{ + return mdev->flags & MGAG200_FLAG_HW_BUG_NO_STARTADD; +} + +int mgag200_driver_dumb_create(struct drm_file *file, + struct drm_device *dev, + struct drm_mode_create_dumb *args) +{ + struct mga_device *mdev = dev->dev_private; + unsigned long pg_align; + + if (WARN_ONCE(!dev->vram_mm, "VRAM MM not initialized")) + return -EINVAL; + + pg_align = 0ul; + + /* + * Aligning scanout buffers to the size of the video ram forces + * placement at offset 0. Works around a bug where HW does not + * respect 'startadd' field. + */ + if (mgag200_pin_bo_at_0(mdev)) + pg_align = PFN_UP(mdev->mc.vram_size); + + return drm_gem_vram_fill_create_dumb(file, dev, &dev->vram_mm->bdev, + pg_align, false, args); +} + static struct drm_driver driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET, .load = mgag200_driver_load, @@ -71,7 +102,10 @@ static struct drm_driver driver = { .major = DRIVER_MAJOR, .minor = DRIVER_MINOR, .patchlevel = DRIVER_PATCHLEVEL, - DRM_GEM_VRAM_DRIVER + .debugfs_init = drm_vram_mm_debugfs_init, + .dumb_create = mgag200_driver_dumb_create, + .dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset, + .gem_prime_mmap = drm_gem_prime_mmap, }; static struct pci_driver mgag200_pci_driver = { diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index 0ea9a525e57d..aa32aad222c2 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -150,6 +150,12 @@ enum mga_type { G200_EW3, }; +/* HW does not handle 'startadd' field correct. */ +#define MGAG200_FLAG_HW_BUG_NO_STARTADD (1ul << 8) + +#define MGAG200_TYPE_MASK (0x000000ff) +#define MGAG200_FLAG_MASK (0x00ffff00) + #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B) struct mga_device { @@ -181,6 +187,18 @@ struct mga_device { u32 unique_rev_id; }; +static inline enum mga_type +mgag200_type_from_driver_data(kernel_ulong_t driver_data) +{ + return (enum mga_type)(driver_data & MGAG200_TYPE_MASK); +} + +static inline unsigned long +mgag200_flags_from_driver_data(kernel_ulong_t driver_data) +{ + return driver_data & MGAG200_FLAG_MASK; +} + /* mgag200_mode.c */ int mgag200_modeset_init(struct mga_device *mdev); void mgag200_modeset_fini(struct mga_device *mdev); diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c index 5f74aabcd3df..e1bc5b0aa774 100644 --- a/drivers/gpu/drm/mgag200/mgag200_main.c +++ b/drivers/gpu/drm/mgag200/mgag200_main.c @@ -94,7 +94,8 @@ static int mgag200_device_init(struct drm_device *dev, struct mga_device *mdev = dev->dev_private; int ret, option; - mdev->type = flags; + mdev->flags = mgag200_flags_from_driver_data(flags); + mdev->type = mgag200_type_from_driver_data(flags); /* Hardcode the number of CRTCs to 1 */ mdev->num_crtc = 1; diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c index e518d93ca6df..d08ae95ecc0a 100644 --- a/drivers/gpu/drm/omapdrm/omap_gem.c +++ b/drivers/gpu/drm/omapdrm/omap_gem.c @@ -843,9 +843,13 @@ fail: */ static void omap_gem_unpin_locked(struct drm_gem_object *obj) { + struct omap_drm_private *priv = obj->dev->dev_private; struct omap_gem_object *omap_obj = to_omap_bo(obj); int ret; + if (omap_gem_is_contiguous(omap_obj) || !priv->has_dmm) + return; + if (refcount_dec_and_test(&omap_obj->dma_addr_cnt)) { ret = tiler_unpin(omap_obj->block); if (ret) { |