From: Andrzej Kacprowski Date: Sat, 28 Oct 2023 13:34:09 +0000 (+0200) Subject: accel/ivpu: Add support for VPU_JOB_FLAGS_NULL_SUBMISSION_MASK X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=61ab485f0eb1e5b7e2be10ec657a054d36ef5035;p=linux.git accel/ivpu: Add support for VPU_JOB_FLAGS_NULL_SUBMISSION_MASK Add test_mode = 3 that add VPU_JOB_FLAGS_NULL_SUBMISSION_MASK flag to the job send to the VPU device. Then the VPU will process the job but won't execute commands (except the command to signal the fence). This can be used to estimate job processing overhead in the host software and VPU firmware. Unlike the null hardware mode, the null submission mode will still work even if UMD uses VPU fences to track job completion. Signed-off-by: Andrzej Kacprowski Reviewed-by: Stanislaw Gruszka Reviewed-by: Jeffrey Hugo Signed-off-by: Stanislaw Gruszka Link: https://patchwork.freedesktop.org/patch/msgid/20231028133415.1169975-6-stanislaw.gruszka@linux.intel.com --- diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c index 8f5655dfd83fb..4ec8d25a120cf 100644 --- a/drivers/accel/ivpu/ivpu_drv.c +++ b/drivers/accel/ivpu/ivpu_drv.c @@ -39,7 +39,7 @@ MODULE_PARM_DESC(dbg_mask, "Driver debug mask. See IVPU_DBG_* macros."); int ivpu_test_mode; module_param_named_unsafe(test_mode, ivpu_test_mode, int, 0644); -MODULE_PARM_DESC(test_mode, "Test mode: 0 - normal operation, 1 - fw unit test, 2 - null hw"); +MODULE_PARM_DESC(test_mode, "Test mode: 0 - disabled , 1 - fw unit test, 2 - null hw, 3 - null submission"); u8 ivpu_pll_min_ratio; module_param_named(pll_min_ratio, ivpu_pll_min_ratio, byte, 0644); diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h index 12a63f8a73e8a..fdec8272da8cf 100644 --- a/drivers/accel/ivpu/ivpu_drv.h +++ b/drivers/accel/ivpu/ivpu_drv.h @@ -147,9 +147,10 @@ extern u8 ivpu_pll_min_ratio; extern u8 ivpu_pll_max_ratio; extern bool ivpu_disable_mmu_cont_pages; -#define IVPU_TEST_MODE_DISABLED 0 -#define IVPU_TEST_MODE_FW_TEST 1 -#define IVPU_TEST_MODE_NULL_HW 2 +#define IVPU_TEST_MODE_DISABLED 0 +#define IVPU_TEST_MODE_FW_TEST 1 +#define IVPU_TEST_MODE_NULL_HW 2 +#define IVPU_TEST_MODE_NULL_SUBMISSION 3 extern int ivpu_test_mode; struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv); diff --git a/drivers/accel/ivpu/ivpu_job.c b/drivers/accel/ivpu/ivpu_job.c index 689dc0d13b8fa..646b8f8129015 100644 --- a/drivers/accel/ivpu/ivpu_job.c +++ b/drivers/accel/ivpu/ivpu_job.c @@ -196,6 +196,8 @@ static int ivpu_cmdq_push_job(struct ivpu_cmdq *cmdq, struct ivpu_job *job) entry->batch_buf_addr = job->cmd_buf_vpu_addr; entry->job_id = job->job_id; entry->flags = 0; + if (unlikely(ivpu_test_mode == IVPU_TEST_MODE_NULL_SUBMISSION)) + entry->flags = VPU_JOB_FLAGS_NULL_SUBMISSION_MASK; wmb(); /* Ensure that tail is updated after filling entry */ header->tail = next_entry; wmb(); /* Flush WC buffer for jobq header */