Add ivpu_fw_sched_mode_select() function that can select scheduling mode
based on HW and FW versions. This prepares for a switch to HWS on
selected platforms.
Reviewed-by: Karol Wachowski <karol.wachowski@xxxxxxxxx>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@xxxxxxxxxxxxxxx>
---
drivers/accel/ivpu/ivpu_drv.c | 6 +++---
drivers/accel/ivpu/ivpu_drv.h | 2 ++
drivers/accel/ivpu/ivpu_fw.c | 15 +++++++++++++--
drivers/accel/ivpu/ivpu_fw.h | 3 +++
drivers/accel/ivpu/ivpu_hw.h | 1 -
drivers/accel/ivpu/ivpu_hw_btrs.c | 2 --
drivers/accel/ivpu/ivpu_job.c | 14 +++++++-------
drivers/accel/ivpu/ivpu_sysfs.c | 24 ++++++++++++++++++++++++
8 files changed, 52 insertions(+), 15 deletions(-)
diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c
index 9fd371af5814c..fcf26e6d4e9c2 100644
--- a/drivers/accel/ivpu/ivpu_drv.c
+++ b/drivers/accel/ivpu/ivpu_drv.c
@@ -54,9 +54,9 @@ 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;
+int ivpu_sched_mode = IVPU_SCHED_MODE_AUTO;
module_param_named(sched_mode, ivpu_sched_mode, int, 0444);
-MODULE_PARM_DESC(sched_mode, "Scheduler mode: 0 - Default scheduler, 1 - Force HW scheduler");
+MODULE_PARM_DESC(sched_mode, "Scheduler mode: -1 - Use default scheduler, 0 - Use OS scheduler, 1 - Use HW scheduler");
bool ivpu_disable_mmu_cont_pages;
module_param_named(disable_mmu_cont_pages, ivpu_disable_mmu_cont_pages, bool, 0444);
@@ -347,7 +347,7 @@ static int ivpu_hw_sched_init(struct ivpu_device *vdev)
{
int ret = 0;
- if (vdev->hw->sched_mode == VPU_SCHEDULING_MODE_HW) {
+ if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW) {
ret = ivpu_jsm_hws_setup_priority_bands(vdev);
if (ret) {
ivpu_err(vdev, "Failed to enable hw scheduler: %d", ret);
diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h
index 471478281021d..c4bd8757f8ded 100644
--- a/drivers/accel/ivpu/ivpu_drv.h
+++ b/drivers/accel/ivpu/ivpu_drv.h
@@ -56,6 +56,8 @@
#define IVPU_PLATFORM_FPGA 3
#define IVPU_PLATFORM_INVALID 8
+#define IVPU_SCHED_MODE_AUTO -1
+
#define IVPU_DBG_REG BIT(0)
#define IVPU_DBG_IRQ BIT(1)
#define IVPU_DBG_MMU BIT(2)
diff --git a/drivers/accel/ivpu/ivpu_fw.c b/drivers/accel/ivpu/ivpu_fw.c
index b91449aa8a7c6..23baab68fc364 100644
--- a/drivers/accel/ivpu/ivpu_fw.c
+++ b/drivers/accel/ivpu/ivpu_fw.c
@@ -130,6 +130,15 @@ static bool is_within_range(u64 addr, size_t size, u64 range_start, size_t range
return true;
}
+static u32
+ivpu_fw_sched_mode_select(struct ivpu_device *vdev, const struct vpu_firmware_header *fw_hdr)
+{
+ if (ivpu_sched_mode != IVPU_SCHED_MODE_AUTO)
+ return ivpu_sched_mode;
+
+ return VPU_SCHEDULING_MODE_OS;
+}
+
static int ivpu_fw_parse(struct ivpu_device *vdev)
{
struct ivpu_fw_info *fw = vdev->fw;
@@ -211,8 +220,10 @@ static int ivpu_fw_parse(struct ivpu_device *vdev)
fw->dvfs_mode = 0;
+ fw->sched_mode = ivpu_fw_sched_mode_select(vdev, fw_hdr);
fw->primary_preempt_buf_size = fw_hdr->preemption_buffer_1_size;
fw->secondary_preempt_buf_size = fw_hdr->preemption_buffer_2_size;
+ ivpu_info(vdev, "Scheduler mode: %s\n", fw->sched_mode ? "HW" : "OS");
if (fw_hdr->ro_section_start_address && !is_within_range(fw_hdr->ro_section_start_address,
fw_hdr->ro_section_size,
@@ -601,8 +612,8 @@ void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params
boot_params->punit_telemetry_sram_base = ivpu_hw_telemetry_offset_get(vdev);
boot_params->punit_telemetry_sram_size = ivpu_hw_telemetry_size_get(vdev);
boot_params->vpu_telemetry_enable = ivpu_hw_telemetry_enable_get(vdev);
- boot_params->vpu_scheduling_mode = vdev->hw->sched_mode;
- if (vdev->hw->sched_mode == VPU_SCHEDULING_MODE_HW)
+ boot_params->vpu_scheduling_mode = vdev->fw->sched_mode;
+ if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW)
boot_params->vpu_focus_present_timer_ms = IVPU_FOCUS_PRESENT_TIMER_MS;
boot_params->dvfs_mode = vdev->fw->dvfs_mode;
if (!IVPU_WA(disable_d0i3_msg))
diff --git a/drivers/accel/ivpu/ivpu_fw.h b/drivers/accel/ivpu/ivpu_fw.h
index 5e8eb608b70f1..1d0b2bd9d65cf 100644
--- a/drivers/accel/ivpu/ivpu_fw.h
+++ b/drivers/accel/ivpu/ivpu_fw.h
@@ -6,6 +6,8 @@
#ifndef __IVPU_FW_H__
#define __IVPU_FW_H__
+#include "vpu_jsm_api.h"
+
#define FW_VERSION_HEADER_SIZE SZ_4K
#define FW_VERSION_STR_SIZE SZ_256
@@ -36,6 +38,7 @@ struct ivpu_fw_info {
u32 secondary_preempt_buf_size;
u64 read_only_addr;
u32 read_only_size;
+ u32 sched_mode;
};
int ivpu_fw_init(struct ivpu_device *vdev);
diff --git a/drivers/accel/ivpu/ivpu_hw.h b/drivers/accel/ivpu/ivpu_hw.h
index 1c0c98e3afb88..dc5518248c405 100644
--- a/drivers/accel/ivpu/ivpu_hw.h
+++ b/drivers/accel/ivpu/ivpu_hw.h
@@ -46,7 +46,6 @@ struct ivpu_hw_info {
u32 profiling_freq;
} pll;
u32 tile_fuse;
- u32 sched_mode;
u32 sku;
u16 config;
int dma_bits;
diff --git a/drivers/accel/ivpu/ivpu_hw_btrs.c b/drivers/accel/ivpu/ivpu_hw_btrs.c
index cad2ce7f2e244..7dc8e333dcec2 100644
--- a/drivers/accel/ivpu/ivpu_hw_btrs.c
+++ b/drivers/accel/ivpu/ivpu_hw_btrs.c
@@ -163,7 +163,6 @@ static int info_init_mtl(struct ivpu_device *vdev)
hw->tile_fuse = BTRS_MTL_TILE_FUSE_ENABLE_BOTH;
hw->sku = BTRS_MTL_TILE_SKU_BOTH;
hw->config = BTRS_MTL_WP_CONFIG_2_TILE_4_3_RATIO;
- hw->sched_mode = ivpu_sched_mode;
return 0;
}
@@ -178,7 +177,6 @@ static int info_init_lnl(struct ivpu_device *vdev)
if (ret)
return ret;
- hw->sched_mode = ivpu_sched_mode;
hw->tile_fuse = tile_fuse_config;
hw->pll.profiling_freq = PLL_PROFILING_FREQ_DEFAULT;
diff --git a/drivers/accel/ivpu/ivpu_job.c b/drivers/accel/ivpu/ivpu_job.c
index b00634af8bc34..b1abdca5891cd 100644
--- a/drivers/accel/ivpu/ivpu_job.c
+++ b/drivers/accel/ivpu/ivpu_job.c
@@ -37,7 +37,7 @@ static int ivpu_preemption_buffers_create(struct ivpu_device *vdev,
u64 secondary_size = ALIGN(vdev->fw->secondary_preempt_buf_size, PAGE_SIZE);
struct ivpu_addr_range range;
- if (vdev->hw->sched_mode != VPU_SCHEDULING_MODE_HW)
+ if (vdev->fw->sched_mode != VPU_SCHEDULING_MODE_HW)
return 0;
range.start = vdev->hw->ranges.user.end - (primary_size * IVPU_NUM_CMDQS_PER_CTX);
@@ -68,7 +68,7 @@ static int ivpu_preemption_buffers_create(struct ivpu_device *vdev,
static void ivpu_preemption_buffers_free(struct ivpu_device *vdev,
struct ivpu_file_priv *file_priv, struct ivpu_cmdq *cmdq)
{
- if (vdev->hw->sched_mode != VPU_SCHEDULING_MODE_HW)
+ if (vdev->fw->sched_mode != VPU_SCHEDULING_MODE_HW)
return;
drm_WARN_ON(&vdev->drm, !cmdq->primary_preempt_buf);
@@ -149,7 +149,7 @@ static int ivpu_register_db(struct ivpu_file_priv *file_priv, struct ivpu_cmdq *
struct ivpu_device *vdev = file_priv->vdev;
int ret;
- if (vdev->hw->sched_mode == VPU_SCHEDULING_MODE_HW)
+ if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW)
ret = ivpu_jsm_hws_register_db(vdev, file_priv->ctx.id, cmdq->db_id, cmdq->db_id,
cmdq->mem->vpu_addr, ivpu_bo_size(cmdq->mem));
else
@@ -184,7 +184,7 @@ ivpu_cmdq_init(struct ivpu_file_priv *file_priv, struct ivpu_cmdq *cmdq, u16 eng
jobq_header->tail = 0;
wmb(); /* Flush WC buffer for jobq->header */
- if (vdev->hw->sched_mode == VPU_SCHEDULING_MODE_HW) {
+ if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW) {
ret = ivpu_hws_cmdq_init(file_priv, cmdq, engine, priority);
if (ret)
return ret;
@@ -211,7 +211,7 @@ static int ivpu_cmdq_fini(struct ivpu_file_priv *file_priv, struct ivpu_cmdq *cm
cmdq->db_registered = false;
- if (vdev->hw->sched_mode == VPU_SCHEDULING_MODE_HW) {
+ if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW) {
ret = ivpu_jsm_hws_destroy_cmdq(vdev, file_priv->ctx.id, cmdq->db_id);
if (!ret)
ivpu_dbg(vdev, JOB, "Command queue %d destroyed\n", cmdq->db_id);
@@ -335,7 +335,7 @@ void ivpu_context_abort_locked(struct ivpu_file_priv *file_priv)
ivpu_cmdq_fini_all(file_priv);
- if (vdev->hw->sched_mode == VPU_SCHEDULING_MODE_OS)
+ if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_OS)
ivpu_jsm_context_release(vdev, file_priv->ctx.id);
}
@@ -361,7 +361,7 @@ static int ivpu_cmdq_push_job(struct ivpu_cmdq *cmdq, struct ivpu_job *job)
if (unlikely(ivpu_test_mode & IVPU_TEST_MODE_NULL_SUBMISSION))
entry->flags = VPU_JOB_FLAGS_NULL_SUBMISSION_MASK;
- if (vdev->hw->sched_mode == VPU_SCHEDULING_MODE_HW &&
+ if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW &&
(unlikely(!(ivpu_test_mode & IVPU_TEST_MODE_PREEMPTION_DISABLE)))) {
entry->primary_preempt_buf_addr = cmdq->primary_preempt_buf->vpu_addr;
entry->primary_preempt_buf_size = ivpu_bo_size(cmdq->primary_preempt_buf);
diff --git a/drivers/accel/ivpu/ivpu_sysfs.c b/drivers/accel/ivpu/ivpu_sysfs.c
index 913669f1786e8..1916651cc14c4 100644
--- a/drivers/accel/ivpu/ivpu_sysfs.c
+++ b/drivers/accel/ivpu/ivpu_sysfs.c
@@ -6,6 +6,8 @@
#include <linux/device.h>
#include <linux/err.h>
+#include "ivpu_drv.h"
+#include "ivpu_fw.h"
#include "ivpu_hw.h"
#include "ivpu_sysfs.h"
@@ -39,8 +41,30 @@ npu_busy_time_us_show(struct device *dev, struct device_attribute *attr, char *b
static DEVICE_ATTR_RO(npu_busy_time_us);
+/**
+ * DOC: sched_mode
+ *
+ * The sched_mode is used to report current NPU scheduling mode.
+ *
+ * It returns following strings:
+ * - "HW" - Hardware Scheduler mode
+ * - "OS" - Operating System Scheduler mode
+ *
+ */
+static ssize_t
+sched_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct drm_device *drm = dev_get_drvdata(dev);
+ struct ivpu_device *vdev = to_ivpu_device(drm);
+
+ return sysfs_emit(buf, "%s\n", vdev->fw->sched_mode ? "HW" : "HW");
+}
+
+static DEVICE_ATTR_RO(sched_mode);
+
static struct attribute *ivpu_dev_attrs[] = {
&dev_attr_npu_busy_time_us.attr,
+ &dev_attr_sched_mode.attr,
NULL,
};
--
2.45.1
