accel/ivpu: Add sched_mode module param

This param will be used to enable/disable HWS (hardware scheduler).
The HWS is a FW side feature and may not be available on all
HW generations and FW versions.
Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240513120431.3187212-3-jacek.lawrynowicz@linux.intel.com

drivers/accel/ivpu/ivpu_drv.c

@@ -51,6 +51,10 @@ u8 ivpu_pll_max_ratio = U8_MAX;
 module_param_named(pll_max_ratio, ivpu_pll_max_ratio, byte, 0644);
 MODULE_PARM_DESC(pll_max_ratio, "Maximum PLL ratio used to set NPU frequency");
 
+int ivpu_sched_mode;
+module_param_named(sched_mode, ivpu_sched_mode, int, 0444);
+MODULE_PARM_DESC(sched_mode, "Scheduler mode: 0 - Default scheduler, 1 - Force HW scheduler");
+
 bool ivpu_disable_mmu_cont_pages;
 module_param_named(disable_mmu_cont_pages, ivpu_disable_mmu_cont_pages, bool, 0644);
 MODULE_PARM_DESC(disable_mmu_cont_pages, "Disable MMU contiguous pages optimization");

drivers/accel/ivpu/ivpu_drv.h

@@ -158,6 +158,7 @@ struct ivpu_file_priv {
 extern int ivpu_dbg_mask;
 extern u8 ivpu_pll_min_ratio;
 extern u8 ivpu_pll_max_ratio;
+extern int ivpu_sched_mode;
 extern bool ivpu_disable_mmu_cont_pages;
 
 #define IVPU_TEST_MODE_FW_TEST            BIT(0)

drivers/accel/ivpu/ivpu_hw.h

 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (C) 2020-2023 Intel Corporation
+ * Copyright (C) 2020-2024 Intel Corporation
  */
 
 #ifndef __IVPU_HW_H__
@@ -59,6 +59,7 @@ struct ivpu_hw_info {
 		u32 profiling_freq;
 	} pll;
 	u32 tile_fuse;
+	u32 sched_mode;
 	u32 sku;
 	u16 config;
 	int dma_bits;

drivers/accel/ivpu/ivpu_hw_37xx.c

@@ -589,6 +589,7 @@ static int ivpu_hw_37xx_info_init(struct ivpu_device *vdev)
 	hw->tile_fuse = TILE_FUSE_ENABLE_BOTH;
 	hw->sku = TILE_SKU_BOTH;
 	hw->config = WP_CONFIG_2_TILE_4_3_RATIO;
+	hw->sched_mode = ivpu_sched_mode;
 
 	ivpu_pll_init_frequency_ratios(vdev);
 

drivers/accel/ivpu/ivpu_hw_40xx.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (C) 2020-2023 Intel Corporation
+ * Copyright (C) 2020-2024 Intel Corporation
  */
 
 #include "ivpu_drv.h"
@@ -724,6 +724,7 @@ static int ivpu_hw_40xx_info_init(struct ivpu_device *vdev)
 	else
 		ivpu_dbg(vdev, MISC, "Fuse: All %d tiles enabled\n", TILE_MAX_NUM);
 
+	hw->sched_mode = ivpu_sched_mode;
 	hw->tile_fuse = tile_disable;
 	hw->pll.profiling_freq = PLL_PROFILING_FREQ_DEFAULT;