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| author | Andres Rodriguez <andresx7@gmail.com> | 2017-02-04 00:28:48 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-05-31 23:48:54 +0300 |
| commit | d0b63bb3385c5683c7531044425f4507ca5251b2 (patch) | |
| tree | b2c6c0dc8ac159a6e08f3a940be5b9b66408a96a /drivers/gpu/drm/radeon | |
| parent | 763a47b8e1abc7cee0a0f550330124ef1199d58d (diff) | |
| download | linux-d0b63bb3385c5683c7531044425f4507ca5251b2.tar.xz | |
drm/amdkfd: allow split HQD on per-queue granularity v5
Update the KGD to KFD interface to allow sharing pipes with queue
granularity instead of pipe granularity.
This allows for more interesting pipe/queue splits.
v2: fix overflow check for res.queue_mask
v3: fix shift overflow when setting res.queue_mask
v4: fix comment in is_pipeline_enabled()
v5: clamp res.queue_mask to the first MEC only
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_kfd.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c index a06e3b130b9e..699fe7f9b8bf 100644 --- a/drivers/gpu/drm/radeon/radeon_kfd.c +++ b/drivers/gpu/drm/radeon/radeon_kfd.c @@ -179,14 +179,29 @@ void radeon_kfd_device_probe(struct radeon_device *rdev) void radeon_kfd_device_init(struct radeon_device *rdev) { + int i, queue, pipe, mec; + if (rdev->kfd) { struct kgd2kfd_shared_resources gpu_resources = { .compute_vmid_bitmap = 0xFF00, - - .first_compute_pipe = 1, - .compute_pipe_count = 4 - 1, + .num_mec = 1, + .num_pipe_per_mec = 4, + .num_queue_per_pipe = 8 }; + bitmap_zero(gpu_resources.queue_bitmap, KGD_MAX_QUEUES); + + for (i = 0; i < KGD_MAX_QUEUES; ++i) { + queue = i % gpu_resources.num_queue_per_pipe; + pipe = (i / gpu_resources.num_queue_per_pipe) + % gpu_resources.num_pipe_per_mec; + mec = (i / gpu_resources.num_queue_per_pipe) + / gpu_resources.num_pipe_per_mec; + + if (mec == 0 && pipe > 0) + set_bit(i, gpu_resources.queue_bitmap); + } + radeon_doorbell_get_kfd_info(rdev, &gpu_resources.doorbell_physical_address, &gpu_resources.doorbell_aperture_size, |