提交 b53bd16f 编写于 作者: D Dave Airlie

Merge tag 'drm-misc-next-fixes-2019-12-04' of...

Merge tag 'drm-misc-next-fixes-2019-12-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

mgag200- Fix hw with broken 'startadd' support (Thomas)
mst- Avoid skipping payloads in payload deletion loop (Wayne)
omap- Fix dma_addr refcounting (Tomi)

Cc: Wayne Lin <Wayne.Lin@amd.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: NDave Airlie <airlied@redhat.com>

From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20191204212255.GA256395@art_vandelay
......@@ -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
......
......@@ -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++) {
......
......@@ -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 = {
......
......@@ -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);
......
......@@ -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;
......
......@@ -843,9 +843,13 @@ int omap_gem_pin(struct drm_gem_object *obj, dma_addr_t *dma_addr)
*/
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) {
......
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