[PATCH] drm/panfrost: Add missing GPU feature registers

[Steven Price]

Three feature registers were declared but never actually read from the
GPU. Add THREAD_MAX_THREADS, THREAD_MAX_WORKGROUP_SIZE and
THREAD_MAX_BARRIER_SIZE so that the complete set are available.

Fixes: 4bced8bea094 ("drm/panfrost: Export all GPU feature registers")
Signed-off-by: Steven Price <steven.pr...@arm.com>
---
 drivers/gpu/drm/panfrost/panfrost_gpu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c 
b/drivers/gpu/drm/panfrost/panfrost_gpu.c
index f67ed925c0ef..8822ec13a0d6 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gpu.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c
@@ -208,6 +208,9 @@ static void panfrost_gpu_init_features(struct 
panfrost_device *pfdev)
        pfdev->features.mem_features = gpu_read(pfdev, GPU_MEM_FEATURES);
        pfdev->features.mmu_features = gpu_read(pfdev, GPU_MMU_FEATURES);
        pfdev->features.thread_features = gpu_read(pfdev, GPU_THREAD_FEATURES);
+       pfdev->features.max_threads = gpu_read(pfdev, GPU_THREAD_MAX_THREADS);
+       pfdev->features.thread_max_workgroup_sz = gpu_read(pfdev, 
GPU_THREAD_MAX_WORKGROUP_SIZE);
+       pfdev->features.thread_max_barrier_sz = gpu_read(pfdev, 
GPU_THREAD_MAX_BARRIER_SIZE);
        pfdev->features.coherency_features = gpu_read(pfdev, 
GPU_COHERENCY_FEATURES);
        for (i = 0; i < 4; i++)
                pfdev->features.texture_features[i] = gpu_read(pfdev, 
GPU_TEXTURE_FEATURES(i));
-- 
2.20.1