Merge tag 'drm-amdkfd-fixes-2017-07-18' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes

This is a pull request for 4.13-rc2/3. The first patch addresses a bug that
appears when doing over-subscription of queues, due to a miscalculation of
the number of available compute queues. The other three patches remove
dead code that was created from the bugfix.

* tag 'drm-amdkfd-fixes-2017-07-18' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdgpu: Remove unused field kgd2kfd_shared_resources.num_mec
  drm/radeon: Remove initialization of shared_resources.num_mec
  drm/amdkfd: Remove unused references to shared_resources.num_mec
  drm/amdgpu: Fix KFD oversubscription by tracking queues correctly

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 5f8ada1d872b..37971d9402e3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -101,7 +101,6 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
         if (adev->kfd) {
                 struct kgd2kfd_shared_resources gpu_resources = {
                         .compute_vmid_bitmap = 0xFF00,
-                        .num_mec = adev->gfx.mec.num_mec,
                         .num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
                         .num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe
                 };
@@ -122,7 +121,7 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
 
                 /* According to linux/bitmap.h we shouldn't use bitmap_clear if
                  * nbits is not compile time constant */
-                last_valid_bit = adev->gfx.mec.num_mec
+                last_valid_bit = 1 /* only first MEC can have compute queues */
                                 * adev->gfx.mec.num_pipe_per_mec
                                 * adev->gfx.mec.num_queue_per_pipe;
                 for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)