diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c | 56 |
1 files changed, 45 insertions, 11 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c index 271c567242ab..b1a6eb349bb3 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c @@ -31,6 +31,7 @@ #define OVER_SUBSCRIPTION_PROCESS_COUNT (1 << 0) #define OVER_SUBSCRIPTION_COMPUTE_QUEUE_COUNT (1 << 1) #define OVER_SUBSCRIPTION_GWS_QUEUE_COUNT (1 << 2) +#define OVER_SUBSCRIPTION_XNACK_CONFLICT (1 << 3) static inline void inc_wptr(unsigned int *wptr, unsigned int increment_bytes, unsigned int buffer_size_bytes) @@ -44,7 +45,8 @@ static inline void inc_wptr(unsigned int *wptr, unsigned int increment_bytes, static void pm_calc_rlib_size(struct packet_manager *pm, unsigned int *rlib_size, - int *over_subscription) + int *over_subscription, + int xnack_conflict) { unsigned int process_count, queue_count, compute_queue_count, gws_queue_count; unsigned int map_queue_size; @@ -73,6 +75,8 @@ static void pm_calc_rlib_size(struct packet_manager *pm, *over_subscription |= OVER_SUBSCRIPTION_COMPUTE_QUEUE_COUNT; if (gws_queue_count > 1) *over_subscription |= OVER_SUBSCRIPTION_GWS_QUEUE_COUNT; + if (xnack_conflict && (node->adev->gmc.xnack_flags & AMDGPU_GMC_XNACK_FLAG_CHAIN)) + *over_subscription |= OVER_SUBSCRIPTION_XNACK_CONFLICT; if (*over_subscription) dev_dbg(dev, "Over subscribed runlist\n"); @@ -96,7 +100,8 @@ static int pm_allocate_runlist_ib(struct packet_manager *pm, unsigned int **rl_buffer, uint64_t *rl_gpu_buffer, unsigned int *rl_buffer_size, - int *is_over_subscription) + int *is_over_subscription, + int xnack_conflict) { struct kfd_node *node = pm->dqm->dev; struct device *dev = node->adev->dev; @@ -105,7 +110,8 @@ static int pm_allocate_runlist_ib(struct packet_manager *pm, if (WARN_ON(pm->allocated)) return -EINVAL; - pm_calc_rlib_size(pm, rl_buffer_size, is_over_subscription); + pm_calc_rlib_size(pm, rl_buffer_size, is_over_subscription, + xnack_conflict); mutex_lock(&pm->lock); @@ -142,11 +148,27 @@ static int pm_create_runlist_ib(struct packet_manager *pm, struct queue *q; struct kernel_queue *kq; int is_over_subscription; + int xnack_enabled = -1; + bool xnack_conflict = 0; rl_wptr = retval = processes_mapped = 0; + /* Check if processes set different xnack modes */ + list_for_each_entry(cur, queues, list) { + qpd = cur->qpd; + if (xnack_enabled < 0) + /* First process */ + xnack_enabled = qpd->pqm->process->xnack_enabled; + else if (qpd->pqm->process->xnack_enabled != xnack_enabled) { + /* Found a process with a different xnack mode */ + xnack_conflict = 1; + break; + } + } + retval = pm_allocate_runlist_ib(pm, &rl_buffer, rl_gpu_addr, - &alloc_size_bytes, &is_over_subscription); + &alloc_size_bytes, &is_over_subscription, + xnack_conflict); if (retval) return retval; @@ -156,9 +178,13 @@ static int pm_create_runlist_ib(struct packet_manager *pm, dev_dbg(dev, "Building runlist ib process count: %d queues count %d\n", pm->dqm->processes_count, pm->dqm->active_queue_count); +build_runlist_ib: /* build the run list ib packet */ list_for_each_entry(cur, queues, list) { qpd = cur->qpd; + /* group processes with the same xnack mode together */ + if (qpd->pqm->process->xnack_enabled != xnack_enabled) + continue; /* build map process packet */ if (processes_mapped >= pm->dqm->processes_count) { dev_dbg(dev, "Not enough space left in runlist IB\n"); @@ -215,18 +241,26 @@ static int pm_create_runlist_ib(struct packet_manager *pm, alloc_size_bytes); } } + if (xnack_conflict) { + /* pick up processes with the other xnack mode */ + xnack_enabled = !xnack_enabled; + xnack_conflict = 0; + goto build_runlist_ib; + } dev_dbg(dev, "Finished map process and queues to runlist\n"); if (is_over_subscription) { if (!pm->is_over_subscription) - dev_warn(dev, "Runlist is getting oversubscribed due to%s%s%s. Expect reduced ROCm performance.\n", - is_over_subscription & OVER_SUBSCRIPTION_PROCESS_COUNT ? - " too many processes." : "", - is_over_subscription & OVER_SUBSCRIPTION_COMPUTE_QUEUE_COUNT ? - " too many queues." : "", - is_over_subscription & OVER_SUBSCRIPTION_GWS_QUEUE_COUNT ? - " multiple processes using cooperative launch." : ""); + dev_warn(dev, "Runlist is getting oversubscribed due to%s%s%s%s. Expect reduced ROCm performance.\n", + is_over_subscription & OVER_SUBSCRIPTION_PROCESS_COUNT ? + " too many processes" : "", + is_over_subscription & OVER_SUBSCRIPTION_COMPUTE_QUEUE_COUNT ? + " too many queues" : "", + is_over_subscription & OVER_SUBSCRIPTION_GWS_QUEUE_COUNT ? + " multiple processes using cooperative launch" : "", + is_over_subscription & OVER_SUBSCRIPTION_XNACK_CONFLICT ? + " xnack on/off processes mixed on gfx9" : ""); retval = pm->pmf->runlist(pm, &rl_buffer[rl_wptr], *rl_gpu_addr, |