From: Tvrtko Ursulin <tvrtko.ursu...@igalia.com> The loop which looks up the syncobj and copies the kperfmon ids is identical so lets move it to a helper.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursu...@igalia.com> --- drivers/gpu/drm/v3d/v3d_submit.c | 148 +++++++++++++------------------ 1 file changed, 64 insertions(+), 84 deletions(-) diff --git a/drivers/gpu/drm/v3d/v3d_submit.c b/drivers/gpu/drm/v3d/v3d_submit.c index b51600e236c8..35682433f75b 100644 --- a/drivers/gpu/drm/v3d/v3d_submit.c +++ b/drivers/gpu/drm/v3d/v3d_submit.c @@ -641,13 +641,63 @@ v3d_get_cpu_copy_query_results_params(struct drm_file *file_priv, return err; } +static int +copy_query_info(struct v3d_performance_query_info *qinfo, + unsigned int count, + unsigned int nperfmons, + u32 __user *syncs, + u64 __user *kperfmon_ids, + struct drm_file *fpriv) +{ + unsigned int i, j; + int err; + + for (i = 0; i < count; i++) { + struct v3d_performance_query *query = &qinfo->queries[i]; + u32 __user *ids_pointer; + u32 sync, id; + u64 ids; + + if (get_user(sync, syncs++)) { + err = -EFAULT; + goto error; + } + + if (get_user(ids, kperfmon_ids++)) { + err = -EFAULT; + goto error; + } + + ids_pointer = u64_to_user_ptr(ids); + + for (j = 0; j < nperfmons; j++) { + if (get_user(id, ids_pointer++)) { + err = -EFAULT; + goto error; + } + + query->kperfmon_ids[j] = id; + } + + query->syncobj = drm_syncobj_find(fpriv, sync); + if (!query->syncobj) { + err = -ENOENT; + goto error; + } + } + + return 0; + +error: + __v3d_performance_query_info_free(qinfo, i); + return err; +} + static int v3d_get_cpu_reset_performance_params(struct drm_file *file_priv, struct drm_v3d_extension __user *ext, struct v3d_cpu_job *job) { - u32 __user *syncs; - u64 __user *kperfmon_ids; struct drm_v3d_reset_performance_query reset; int err; @@ -675,50 +725,17 @@ v3d_get_cpu_reset_performance_params(struct drm_file *file_priv, if (!job->performance_query.queries) return -ENOMEM; - syncs = u64_to_user_ptr(reset.syncs); - kperfmon_ids = u64_to_user_ptr(reset.kperfmon_ids); + err = copy_query_info(qinfo, reset.count, reset.nperfmons, + u64_to_user_ptr(reset.syncs), + u64_to_user_ptr(reset.kperfmon_ids), + file_priv); + if (err) + return err; - for (int i = 0; i < reset.count; i++) { - u32 sync; - u64 ids; - u32 __user *ids_pointer; - u32 id; - - if (copy_from_user(&sync, syncs++, sizeof(sync))) { - err = -EFAULT; - goto error; - } - - if (copy_from_user(&ids, kperfmon_ids++, sizeof(ids))) { - err = -EFAULT; - goto error; - } - - ids_pointer = u64_to_user_ptr(ids); - - for (int j = 0; j < reset.nperfmons; j++) { - if (copy_from_user(&id, ids_pointer++, sizeof(id))) { - err = -EFAULT; - goto error; - } - - job->performance_query.queries[i].kperfmon_ids[j] = id; - } - - job->performance_query.queries[i].syncobj = drm_syncobj_find(file_priv, sync); - if (!job->performance_query.queries[i].syncobj) { - err = -ENOENT; - goto error; - } - } job->performance_query.count = reset.count; job->performance_query.nperfmons = reset.nperfmons; return 0; - -error: - __v3d_performance_query_info_free(qinfo, i); - return err; } static int @@ -726,8 +743,6 @@ v3d_get_cpu_copy_performance_query_params(struct drm_file *file_priv, struct drm_v3d_extension __user *ext, struct v3d_cpu_job *job) { - u32 __user *syncs; - u64 __user *kperfmon_ids; struct drm_v3d_copy_performance_query copy; int err; @@ -758,44 +773,13 @@ v3d_get_cpu_copy_performance_query_params(struct drm_file *file_priv, if (!job->performance_query.queries) return -ENOMEM; - syncs = u64_to_user_ptr(copy.syncs); - kperfmon_ids = u64_to_user_ptr(copy.kperfmon_ids); + err = copy_query_info(qinfo, copy.count, copy.nperfmons, + u64_to_user_ptr(copy.syncs), + u64_to_user_ptr(copy.kperfmon_ids), + file_priv); + if (err) + return err; - for (int i = 0; i < copy.count; i++) { - u32 sync; - u64 ids; - u32 __user *ids_pointer; - u32 id; - - if (copy_from_user(&sync, syncs++, sizeof(sync))) { - err = -EFAULT; - goto error; - } - - job->performance_query.queries[i].syncobj = drm_syncobj_find(file_priv, sync); - - if (copy_from_user(&ids, kperfmon_ids++, sizeof(ids))) { - err = -EFAULT; - goto error; - } - - ids_pointer = u64_to_user_ptr(ids); - - for (int j = 0; j < copy.nperfmons; j++) { - if (copy_from_user(&id, ids_pointer++, sizeof(id))) { - err = -EFAULT; - goto error; - } - - job->performance_query.queries[i].kperfmon_ids[j] = id; - } - - job->performance_query.queries[i].syncobj = drm_syncobj_find(file_priv, sync); - if (!job->performance_query.queries[i].syncobj) { - err = -ENOENT; - goto error; - } - } job->performance_query.count = copy.count; job->performance_query.nperfmons = copy.nperfmons; job->performance_query.ncounters = copy.ncounters; @@ -807,10 +791,6 @@ v3d_get_cpu_copy_performance_query_params(struct drm_file *file_priv, job->copy.stride = copy.stride; return 0; - -error: - __v3d_performance_query_info_free(qinfo, i); - return err; } /* Whenever userspace sets ioctl extensions, v3d_get_extensions parses data -- 2.44.0