The number of L2 performance counter blocks equals the number of L2 slices, so
add a query to get this. This information isn't needed by the Mesa driver, so
don't get it in the default device initialization path.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-by: Antonio Caggiano <antonio.caggiano@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16803>
unsigned sample_idx,
float *out);
+unsigned
+panfrost_query_l2_slices(const struct panfrost_device *dev);
+
static inline struct panfrost_bo *
pan_lookup_bo(struct panfrost_device *dev, uint32_t gem_handle)
{
return panfrost_query_raw(fd, DRM_PANFROST_PARAM_GPU_REVISION, true, 0);
}
+unsigned
+panfrost_query_l2_slices(const struct panfrost_device *dev)
+{
+ /* Query MEM_FEATURES register */
+ uint32_t mem_features =
+ panfrost_query_raw(dev->fd, DRM_PANFROST_PARAM_MEM_FEATURES,
+ true, 0);
+
+ /* L2_SLICES is MEM_FEATURES[11:8] minus(1) */
+ return ((mem_features >> 8) & 0xF) + 1;
+}
+
static struct panfrost_tiler_features
panfrost_query_tiler_features(int fd)
{