diff options
| author | Ashley Smith <ashley.smith@collabora.com> | 2025-11-27 14:44:02 +0300 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@collabora.com> | 2025-12-05 15:13:42 +0300 |
| commit | d8f94cb02af3cc64013373c94a4b7780782ea59c (patch) | |
| tree | cc0826ba9a8ba306d7db36ddcf619248e51fa418 /drivers/gpu | |
| parent | 88e721ab978a86426aa08da520de77430fa7bb84 (diff) | |
| download | linux-d8f94cb02af3cc64013373c94a4b7780782ea59c.tar.xz | |
drm/panthor: Enable timestamp propagation
Set the GLB_COUNTER_EN bit to enable coherent propagation of GPU
timestamp values to shader cores. This is a prerequisite for exposing
device-coherent timestamp queries.
Bump the version to 1.6 so userspace can detect support.
v2:
- GLB_COUNTER_EN is not a toggle bit move to panthor_fw_update_reqs
Signed-off-by: Ashley Smith <ashley.smith@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20251127115019.2113040-1-ashley.smith@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/panthor/panthor_drv.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/panthor/panthor_fw.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/panthor/panthor_drv.c index d1d4c50da5bf..0b0ec3b978c6 100644 --- a/drivers/gpu/drm/panthor/panthor_drv.c +++ b/drivers/gpu/drm/panthor/panthor_drv.c @@ -1604,6 +1604,7 @@ static void panthor_debugfs_init(struct drm_minor *minor) * - 1.3 - adds DRM_PANTHOR_GROUP_STATE_INNOCENT flag * - 1.4 - adds DRM_IOCTL_PANTHOR_BO_SET_LABEL ioctl * - 1.5 - adds DRM_PANTHOR_SET_USER_MMIO_OFFSET ioctl + * - 1.6 - enables GLB_COUNTER_EN */ static const struct drm_driver panthor_drm_driver = { .driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ | @@ -1617,7 +1618,7 @@ static const struct drm_driver panthor_drm_driver = { .name = "panthor", .desc = "Panthor DRM driver", .major = 1, - .minor = 5, + .minor = 6, .gem_create_object = panthor_gem_create_object, .gem_prime_import_sg_table = drm_gem_shmem_prime_import_sg_table, diff --git a/drivers/gpu/drm/panthor/panthor_fw.c b/drivers/gpu/drm/panthor/panthor_fw.c index 94a3cd6dfa6d..4beaa589ba66 100644 --- a/drivers/gpu/drm/panthor/panthor_fw.c +++ b/drivers/gpu/drm/panthor/panthor_fw.c @@ -1044,7 +1044,8 @@ static void panthor_fw_init_global_iface(struct panthor_device *ptdev) if (panthor_fw_has_glb_state(ptdev)) glb_iface->input->ack_irq_mask |= GLB_STATE_MASK; - panthor_fw_update_reqs(glb_iface, req, GLB_IDLE_EN, GLB_IDLE_EN); + panthor_fw_update_reqs(glb_iface, req, GLB_IDLE_EN | GLB_COUNTER_EN, + GLB_IDLE_EN | GLB_COUNTER_EN); panthor_fw_toggle_reqs(glb_iface, req, ack, GLB_CFG_ALLOC_EN | GLB_CFG_POWEROFF_TIMER | |