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drm/amdgpu: split gfx_v9_0_kiq_init_queue into two

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One for KIQ and one for the KCQ. This simplifies the logic and
allows for future optimizations.

Acked-by: Tom St Denis <tom.stdenis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2017-04-17 16:39:13 -04:00
parent b5ab16bf64
commit 898b7893e4
1 changed files with 42 additions and 21 deletions
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63
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
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@ -2845,25 +2845,18 @@ static int gfx_v9_0_kiq_init_register(struct amdgpu_ring *ring)
static int gfx_v9_0_kiq_init_queue(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
struct v9_mqd *mqd = ring->mqd_ptr;
bool is_kiq = (ring->funcs->type == AMDGPU_RING_TYPE_KIQ);
int mqd_idx = AMDGPU_MAX_COMPUTE_RINGS;
int r;
if (is_kiq) {
gfx_v9_0_kiq_setting(&kiq->ring);
} else {
mqd_idx = ring - &adev->gfx.compute_ring[0];
}
gfx_v9_0_kiq_setting(ring);
if (!adev->gfx.in_reset) {
memset((void *)mqd, 0, sizeof(*mqd));
mutex_lock(&adev->srbm_mutex);
soc15_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
gfx_v9_0_mqd_init(ring);
if (is_kiq)
gfx_v9_0_kiq_init_register(ring);
gfx_v9_0_kiq_init_register(ring);
soc15_grbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
@ -2878,19 +2871,47 @@ static int gfx_v9_0_kiq_init_queue(struct amdgpu_ring *ring)
ring->wptr = 0;
amdgpu_ring_clear_ring(ring);
if (is_kiq) {
mutex_lock(&adev->srbm_mutex);
soc15_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
gfx_v9_0_kiq_init_register(ring);
soc15_grbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
}
mutex_lock(&adev->srbm_mutex);
soc15_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
gfx_v9_0_kiq_init_register(ring);
soc15_grbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
}
if (is_kiq)
r = gfx_v9_0_kiq_enable(ring);
else
r = gfx_v9_0_map_queue_enable(&kiq->ring, ring);
r = gfx_v9_0_kiq_enable(ring);
return r;
}
static int gfx_v9_0_kcq_init_queue(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
struct v9_mqd *mqd = ring->mqd_ptr;
int mqd_idx = ring - &adev->gfx.compute_ring[0];
int r;
if (!adev->gfx.in_reset) {
memset((void *)mqd, 0, sizeof(*mqd));
mutex_lock(&adev->srbm_mutex);
soc15_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
gfx_v9_0_mqd_init(ring);
soc15_grbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
if (adev->gfx.mec.mqd_backup[mqd_idx])
memcpy(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(*mqd));
} else { /* for GPU_RESET case */
/* reset MQD to a clean status */
if (adev->gfx.mec.mqd_backup[mqd_idx])
memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(*mqd));
/* reset ring buffer */
ring->wptr = 0;
amdgpu_ring_clear_ring(ring);
}
r = gfx_v9_0_map_queue_enable(&kiq->ring, ring);
return r;
}
@ -2926,7 +2947,7 @@ static int gfx_v9_0_kiq_resume(struct amdgpu_device *adev)
goto done;
r = amdgpu_bo_kmap(ring->mqd_obj, (void **)&ring->mqd_ptr);
if (!r) {
r = gfx_v9_0_kiq_init_queue(ring);
r = gfx_v9_0_kcq_init_queue(ring);
amdgpu_bo_kunmap(ring->mqd_obj);
ring->mqd_ptr = NULL;
}