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drm/amdgpu/gfx: move more common KIQ code to amdgpu_gfx.c

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Lots more common stuff.

Reviewed-by: Alex Xie <AlexBin.Xie@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2017-06-07 13:31:32 -04:00
parent 2db0cdbe28
commit 71c37505e7
4 changed files with 122 additions and 211 deletions
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103
drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
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@@ -145,3 +145,106 @@ void amdgpu_gfx_compute_queue_acquire(struct amdgpu_device *adev)
if (WARN_ON(adev->gfx.num_compute_rings > AMDGPU_MAX_COMPUTE_RINGS))
adev->gfx.num_compute_rings = AMDGPU_MAX_COMPUTE_RINGS;
}
static int amdgpu_gfx_kiq_acquire(struct amdgpu_device *adev,
struct amdgpu_ring *ring)
{
int queue_bit;
int mec, pipe, queue;
queue_bit = adev->gfx.mec.num_mec
* adev->gfx.mec.num_pipe_per_mec
* adev->gfx.mec.num_queue_per_pipe;
while (queue_bit-- >= 0) {
if (test_bit(queue_bit, adev->gfx.mec.queue_bitmap))
continue;
amdgpu_gfx_bit_to_queue(adev, queue_bit, &mec, &pipe, &queue);
/* Using pipes 2/3 from MEC 2 seems cause problems */
if (mec == 1 && pipe > 1)
continue;
ring->me = mec + 1;
ring->pipe = pipe;
ring->queue = queue;
return 0;
}
dev_err(adev->dev, "Failed to find a queue for KIQ\n");
return -EINVAL;
}
int amdgpu_gfx_kiq_init_ring(struct amdgpu_device *adev,
struct amdgpu_ring *ring,
struct amdgpu_irq_src *irq)
{
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
int r = 0;
mutex_init(&kiq->ring_mutex);
r = amdgpu_wb_get(adev, &adev->virt.reg_val_offs);
if (r)
return r;
ring->adev = NULL;
ring->ring_obj = NULL;
ring->use_doorbell = true;
ring->doorbell_index = AMDGPU_DOORBELL_KIQ;
r = amdgpu_gfx_kiq_acquire(adev, ring);
if (r)
return r;
ring->eop_gpu_addr = kiq->eop_gpu_addr;
sprintf(ring->name, "kiq %d.%d.%d", ring->me, ring->pipe, ring->queue);
r = amdgpu_ring_init(adev, ring, 1024,
irq, AMDGPU_CP_KIQ_IRQ_DRIVER0);
if (r)
dev_warn(adev->dev, "(%d) failed to init kiq ring\n", r);
return r;
}
void amdgpu_gfx_kiq_free_ring(struct amdgpu_ring *ring,
struct amdgpu_irq_src *irq)
{
amdgpu_wb_free(ring->adev, ring->adev->virt.reg_val_offs);
amdgpu_ring_fini(ring);
}
void amdgpu_gfx_kiq_fini(struct amdgpu_device *adev)
{
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
amdgpu_bo_free_kernel(&kiq->eop_obj, &kiq->eop_gpu_addr, NULL);
}
int amdgpu_gfx_kiq_init(struct amdgpu_device *adev,
unsigned hpd_size)
{
int r;
u32 *hpd;
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
r = amdgpu_bo_create_kernel(adev, hpd_size, PAGE_SIZE,
AMDGPU_GEM_DOMAIN_GTT, &kiq->eop_obj,
&kiq->eop_gpu_addr, (void **)&hpd);
if (r) {
dev_warn(adev->dev, "failed to create KIQ bo (%d).\n", r);
return r;
}
memset(hpd, 0, hpd_size);
r = amdgpu_bo_reserve(kiq->eop_obj, true);
if (unlikely(r != 0))
dev_warn(adev->dev, "(%d) reserve kiq eop bo failed\n", r);
amdgpu_bo_kunmap(kiq->eop_obj);
amdgpu_bo_unreserve(kiq->eop_obj);
return 0;
}