In SDMA0_QUEUE0_RB_CNTL, queue size is 2^RB_SIZE, not 2^(RB_SIZE +1). Signed-off-by: Yifan Zhang <yifan1.zhang@xxxxxxx> --- drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v11.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c index d3e2b6a599a4..03699a9ad3d9 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c @@ -329,7 +329,7 @@ static void update_mqd_sdma(struct mqd_manager *mm, void *mqd, struct v10_sdma_mqd *m; m = get_sdma_mqd(mqd); - m->sdmax_rlcx_rb_cntl = (ffs(q->queue_size / sizeof(unsigned int)) - 1) + m->sdmax_rlcx_rb_cntl = order_base_2(q->queue_size / 4) << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT | q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT | 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT | diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v11.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v11.c index 26b53b6d673e..451fcb9bb051 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v11.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v11.c @@ -329,7 +329,7 @@ static void update_mqd_sdma(struct mqd_manager *mm, void *mqd, struct v11_sdma_mqd *m; m = get_sdma_mqd(mqd); - m->sdmax_rlcx_rb_cntl = (ffs(q->queue_size / sizeof(unsigned int)) - 1) + m->sdmax_rlcx_rb_cntl = order_base_2(q->queue_size / 4) << SDMA0_QUEUE0_RB_CNTL__RB_SIZE__SHIFT | q->vmid << SDMA0_QUEUE0_RB_CNTL__RB_VMID__SHIFT | 1 << SDMA0_QUEUE0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT | -- 2.37.3
