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pan/kmod: Add Panthor BO Labeling IOCTL support

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Implement kmod->ops->bo_label operation for Panthor kmod driver.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34224>
This commit is contained in:
Adrián Larumbe 2025-03-16 03:53:12 +00:00 • committed by Marge Bot
parent 9fa730b15d
commit a05b6829c8
1 changed files with 28 additions and 0 deletions
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28
src/panfrost/lib/kmod/panthor_kmod.c
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@ -22,6 +22,9 @@
#include "pan_kmod_backend.h"
/* Maximum kmod BO label length, including NUL-terminator */
#define PANTHOR_BO_LABEL_MAXLEN 4096
const struct pan_kmod_ops panthor_kmod_ops;
/* Objects used to track VAs returned through async unmaps. */
@ -1190,6 +1193,30 @@ panthor_kmod_query_timestamp(const struct pan_kmod_dev *dev)
return timestamp_info.current_timestamp;
}
static void
panthor_kmod_bo_label(struct pan_kmod_dev *dev, struct pan_kmod_bo *bo, const char *label)
{
char truncated_label[PANTHOR_BO_LABEL_MAXLEN];
if (!(dev->driver.version.major > 1 || dev->driver.version.minor >= 4))
return;
if (strnlen(label, PANTHOR_BO_LABEL_MAXLEN) == PANTHOR_BO_LABEL_MAXLEN) {
strncpy(truncated_label, label, PANTHOR_BO_LABEL_MAXLEN - 1);
truncated_label[PANTHOR_BO_LABEL_MAXLEN - 1] = '\0';
label = truncated_label;
}
struct drm_panthor_bo_set_label set_label = (struct drm_panthor_bo_set_label) {
.handle = bo->handle,
.label = (uint64_t)(uintptr_t)label,
};
int ret = pan_kmod_ioctl(dev->fd, DRM_IOCTL_PANTHOR_BO_SET_LABEL, &set_label);
if (ret)
mesa_loge("DRM_IOCTL_PANTHOR_BO_SET_LABEL failed (err=%d)", errno);
}
const struct pan_kmod_ops panthor_kmod_ops = {
.dev_create = panthor_kmod_dev_create,
.dev_destroy = panthor_kmod_dev_destroy,
@ -1206,4 +1233,5 @@ const struct pan_kmod_ops panthor_kmod_ops = {
.vm_bind = panthor_kmod_vm_bind,
.vm_query_state = panthor_kmod_vm_query_state,
.query_timestamp = panthor_kmod_query_timestamp,
.bo_set_label = panthor_kmod_bo_label,
};