From: Oak Zeng Date: Fri, 4 Oct 2019 14:28:21 +0000 (-0500) Subject: drm/amdkfd: Fix MQD size calculation X-Git-Tag: v5.5-rc1~128^2~26^2~20 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=40a9592a26608e16f7545a068ea4165e1869f629;p=linux.git drm/amdkfd: Fix MQD size calculation On device initialization, a chunk of GTT memory is pre-allocated for HIQ and all SDMA queues mqd. The size of this allocation was wrong. The correct sdma engine number should be PCIe-optimized SDMA engine number plus xgmi SDMA engine number. Reported-by: Jonathan Kim Signed-off-by: Jonathan Kim Signed-off-by: Oak Zeng Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index 553c45e16815..1d82bfe2f3f8 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -1692,7 +1692,8 @@ static int allocate_hiq_sdma_mqd(struct device_queue_manager *dqm) struct kfd_dev *dev = dqm->dev; struct kfd_mem_obj *mem_obj = &dqm->hiq_sdma_mqd; uint32_t size = dqm->mqd_mgrs[KFD_MQD_TYPE_SDMA]->mqd_size * - dev->device_info->num_sdma_engines * + (dev->device_info->num_sdma_engines + + dev->device_info->num_xgmi_sdma_engines) * dev->device_info->num_sdma_queues_per_engine + dqm->mqd_mgrs[KFD_MQD_TYPE_HIQ]->mqd_size;