void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
{
+ int i;
+ int last_valid_bit;
if (adev->kfd) {
struct kgd2kfd_shared_resources gpu_resources = {
.compute_vmid_bitmap = 0xFF00,
-
- .first_compute_pipe = 1,
- .compute_pipe_count = 4 - 1,
+ .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
};
+ /* this is going to have a few of the MSBs set that we need to
+ * clear */
+ bitmap_complement(gpu_resources.queue_bitmap,
+ adev->gfx.mec.queue_bitmap,
+ KGD_MAX_QUEUES);
+
+ /* 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
+ * adev->gfx.mec.num_pipe_per_mec
+ * adev->gfx.mec.num_queue_per_pipe;
+ for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)
+ clear_bit(i, gpu_resources.queue_bitmap);
+
amdgpu_doorbell_get_kfd_info(adev,
&gpu_resources.doorbell_physical_address,
&gpu_resources.doorbell_aperture_size,
return KFD_MQD_TYPE_CP;
}
-unsigned int get_first_pipe(struct device_queue_manager *dqm)
+static bool is_pipe_enabled(struct device_queue_manager *dqm, int mec, int pipe)
+{
+ int i;
+ int pipe_offset = mec * dqm->dev->shared_resources.num_pipe_per_mec
+ + pipe * dqm->dev->shared_resources.num_queue_per_pipe;
+
+ /* queue is available for KFD usage if bit is 1 */
+ for (i = 0; i < dqm->dev->shared_resources.num_queue_per_pipe; ++i)
+ if (test_bit(pipe_offset + i,
+ dqm->dev->shared_resources.queue_bitmap))
+ return true;
+ return false;
+}
+
+unsigned int get_mec_num(struct device_queue_manager *dqm)
{
BUG_ON(!dqm || !dqm->dev);
- return dqm->dev->shared_resources.first_compute_pipe;
+
+ return dqm->dev->shared_resources.num_mec;
}
-unsigned int get_pipes_num(struct device_queue_manager *dqm)
+unsigned int get_queues_num(struct device_queue_manager *dqm)
{
BUG_ON(!dqm || !dqm->dev);
- return dqm->dev->shared_resources.compute_pipe_count;
+ return bitmap_weight(dqm->dev->shared_resources.queue_bitmap,
+ KGD_MAX_QUEUES);
}
-static inline unsigned int get_pipes_num_cpsch(void)
+unsigned int get_queues_per_pipe(struct device_queue_manager *dqm)
{
- return PIPE_PER_ME_CP_SCHEDULING;
+ BUG_ON(!dqm || !dqm->dev);
+ return dqm->dev->shared_resources.num_queue_per_pipe;
+}
+
+unsigned int get_pipes_per_mec(struct device_queue_manager *dqm)
+{
+ BUG_ON(!dqm || !dqm->dev);
+ return dqm->dev->shared_resources.num_pipe_per_mec;
}
void program_sh_mem_settings(struct device_queue_manager *dqm,
set = false;
- for (pipe = dqm->next_pipe_to_allocate, i = 0; i < get_pipes_num(dqm);
- pipe = ((pipe + 1) % get_pipes_num(dqm)), ++i) {
+ for (pipe = dqm->next_pipe_to_allocate, i = 0; i < get_pipes_per_mec(dqm);
+ pipe = ((pipe + 1) % get_pipes_per_mec(dqm)), ++i) {
+
+ if (!is_pipe_enabled(dqm, 0, pipe))
+ continue;
+
if (dqm->allocated_queues[pipe] != 0) {
bit = find_first_bit(
(unsigned long *)&dqm->allocated_queues[pipe],
- QUEUES_PER_PIPE);
+ get_queues_per_pipe(dqm));
clear_bit(bit,
(unsigned long *)&dqm->allocated_queues[pipe]);
pr_debug("kfd: DQM %s hqd slot - pipe (%d) queue(%d)\n",
__func__, q->pipe, q->queue);
/* horizontal hqd allocation */
- dqm->next_pipe_to_allocate = (pipe + 1) % get_pipes_num(dqm);
+ dqm->next_pipe_to_allocate = (pipe + 1) % get_pipes_per_mec(dqm);
return 0;
}
vmid);
}
-int init_pipelines(struct device_queue_manager *dqm,
- unsigned int pipes_num, unsigned int first_pipe)
-{
- BUG_ON(!dqm || !dqm->dev);
-
- pr_debug("kfd: In func %s\n", __func__);
-
- return 0;
-}
-
static void init_interrupts(struct device_queue_manager *dqm)
{
unsigned int i;
BUG_ON(dqm == NULL);
- for (i = 0 ; i < get_pipes_num(dqm) ; i++)
- dqm->dev->kfd2kgd->init_interrupts(dqm->dev->kgd,
- i + get_first_pipe(dqm));
+ for (i = 0 ; i < get_pipes_per_mec(dqm) ; i++)
+ if (is_pipe_enabled(dqm, 0, i))
+ dqm->dev->kfd2kgd->init_interrupts(dqm->dev->kgd, i);
}
static int init_scheduler(struct device_queue_manager *dqm)
{
- int retval;
+ int retval = 0;
BUG_ON(!dqm);
pr_debug("kfd: In %s\n", __func__);
- retval = init_pipelines(dqm, get_pipes_num(dqm), get_first_pipe(dqm));
return retval;
}
BUG_ON(!dqm);
pr_debug("kfd: In func %s num of pipes: %d\n",
- __func__, get_pipes_num(dqm));
+ __func__, get_pipes_per_mec(dqm));
mutex_init(&dqm->lock);
INIT_LIST_HEAD(&dqm->queues);
dqm->queue_count = dqm->next_pipe_to_allocate = 0;
dqm->sdma_queue_count = 0;
- dqm->allocated_queues = kcalloc(get_pipes_num(dqm),
+ dqm->allocated_queues = kcalloc(get_pipes_per_mec(dqm),
sizeof(unsigned int), GFP_KERNEL);
if (!dqm->allocated_queues) {
mutex_destroy(&dqm->lock);
return -ENOMEM;
}
- for (i = 0; i < get_pipes_num(dqm); i++)
- dqm->allocated_queues[i] = (1 << QUEUES_PER_PIPE) - 1;
+ for (i = 0; i < get_pipes_per_mec(dqm); i++)
+ dqm->allocated_queues[i] = (1 << get_queues_per_pipe(dqm)) - 1;
dqm->vmid_bitmap = (1 << VMID_PER_DEVICE) - 1;
dqm->sdma_bitmap = (1 << CIK_SDMA_QUEUES) - 1;
static int set_sched_resources(struct device_queue_manager *dqm)
{
+ int i, mec;
struct scheduling_resources res;
- unsigned int queue_num, queue_mask;
BUG_ON(!dqm);
pr_debug("kfd: In func %s\n", __func__);
- queue_num = get_pipes_num_cpsch() * QUEUES_PER_PIPE;
- queue_mask = (1 << queue_num) - 1;
res.vmid_mask = (1 << VMID_PER_DEVICE) - 1;
res.vmid_mask <<= KFD_VMID_START_OFFSET;
- res.queue_mask = queue_mask << (get_first_pipe(dqm) * QUEUES_PER_PIPE);
+
+ res.queue_mask = 0;
+ for (i = 0; i < KGD_MAX_QUEUES; ++i) {
+ mec = (i / dqm->dev->shared_resources.num_queue_per_pipe)
+ / dqm->dev->shared_resources.num_pipe_per_mec;
+
+ if (!test_bit(i, dqm->dev->shared_resources.queue_bitmap))
+ continue;
+
+ /* only acquire queues from the first MEC */
+ if (mec > 0)
+ continue;
+
+ /* This situation may be hit in the future if a new HW
+ * generation exposes more than 64 queues. If so, the
+ * definition of res.queue_mask needs updating */
+ if (WARN_ON(i > (sizeof(res.queue_mask)*8))) {
+ pr_err("Invalid queue enabled by amdgpu: %d\n", i);
+ break;
+ }
+
+ res.queue_mask |= (1ull << i);
+ }
res.gws_mask = res.oac_mask = res.gds_heap_base =
res.gds_heap_size = 0;
BUG_ON(!dqm);
pr_debug("kfd: In func %s num of pipes: %d\n",
- __func__, get_pipes_num_cpsch());
+ __func__, get_pipes_per_mec(dqm));
mutex_init(&dqm->lock);
INIT_LIST_HEAD(&dqm->queues);
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,
projects / platform / kernel / linux-rpi.git / commitdiff