From: Jammy Zhou <Jammy.Zhou@xxxxxxx>
This option can be used to specify the max number of submissions in the
active HW queue. The default value is 2 now.
Signed-off-by: Jammy Zhou <Jammy.Zhou@xxxxxxx>
Reviewed-by: Chunming Zhou <david1.zhou@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 ++++
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 3 ++-
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 5 +++--
drivers/gpu/drm/amd/scheduler/gpu_scheduler.h | 5 ++---
5 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index e4311ac..ee55099 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -82,6 +82,7 @@ extern int amdgpu_vm_size;
extern int amdgpu_vm_block_size;
extern int amdgpu_enable_scheduler;
extern int amdgpu_sched_jobs;
+extern int amdgpu_sched_hw_submission;
#define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS 3000
#define AMDGPU_MAX_USEC_TIMEOUT 100000 /* 100 ms */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0e7e0c3..6578258 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -77,6 +77,7 @@ int amdgpu_vm_block_size = -1;
int amdgpu_exp_hw_support = 0;
int amdgpu_enable_scheduler = 0;
int amdgpu_sched_jobs = 16;
+int amdgpu_sched_hw_submission = 2;
MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
module_param_named(vramlimit, amdgpu_vram_limit, int, 0600);
@@ -147,6 +148,9 @@ module_param_named(enable_scheduler, amdgpu_enable_scheduler, int, 0444);
MODULE_PARM_DESC(sched_jobs, "the max number of jobs supported in the sw queue (default 16)");
module_param_named(sched_jobs, amdgpu_sched_jobs, int, 0444);
+MODULE_PARM_DESC(sched_hw_submission, "the max number of HW submissions (default 2)");
+module_param_named(sched_hw_submission, amdgpu_sched_hw_submission, int, 0444);
+
static struct pci_device_id pciidlist[] = {
#ifdef CONFIG_DRM_AMDGPU_CIK
/* Kaveri */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index faee350..c4ad6bb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -926,7 +926,8 @@ void amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring)
if (amdgpu_enable_scheduler) {
ring->scheduler = amd_sched_create((void *)ring->adev,
&amdgpu_sched_ops,
- ring->idx, 5, 0);
+ ring->idx, 5, 0,
+ amdgpu_sched_hw_submission);
if (!ring->scheduler)
DRM_ERROR("Failed to create scheduler on ring %d.\n",
ring->idx);
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
index 87993e0..042da7d 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
@@ -468,7 +468,8 @@ struct amd_gpu_scheduler *amd_sched_create(void *device,
struct amd_sched_backend_ops *ops,
unsigned ring,
unsigned granularity,
- unsigned preemption)
+ unsigned preemption,
+ unsigned hw_submission)
{
struct amd_gpu_scheduler *sched;
char name[20] = "gpu_sched[0]";
@@ -495,7 +496,7 @@ struct amd_gpu_scheduler *amd_sched_create(void *device,
init_waitqueue_head(&sched->wait_queue);
if(kfifo_alloc(&sched->active_hw_rq,
- AMD_MAX_ACTIVE_HW_SUBMISSION * sizeof(void *),
+ hw_submission * sizeof(void *),
GFP_KERNEL)) {
kfree(sched);
return NULL;
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
index 52577a88..7f6bc26 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
@@ -26,8 +26,6 @@
#include <linux/kfifo.h>
-#define AMD_MAX_ACTIVE_HW_SUBMISSION 2
-
#define AMD_KERNEL_CONTEXT_ID 0
#define AMD_KERNEL_PROCESS_ID 0
@@ -127,7 +125,8 @@ struct amd_gpu_scheduler *amd_sched_create(void *device,
struct amd_sched_backend_ops *ops,
uint32_t ring,
uint32_t granularity,
- uint32_t preemption);
+ uint32_t preemption,
+ uint32_t hw_submission);
int amd_sched_destroy(struct amd_gpu_scheduler *sched);
--
1.8.3.1
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