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gpu: nvgpu: Add os specific call to initialize the channels

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Add OS specific function to return the number of syncpoints
available to the GPU. This is required for making the
syncpoints as configurable.

Linux: The default number of syncpoints is 512.

Bug 3644504

Change-Id: Iddbc38cb25480876d6d8f39f039218a1b2b22605
Signed-off-by: Dinesh T <dt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2820152
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Dinesh T
2022-12-01 21:05:44 +00:00
committed by mobile promotions
parent 8e60795b9c
commit 373398a46b
4 changed files with 40 additions and 7 deletions
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14
drivers/gpu/nvgpu/os/linux/linux-channel.c
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@@ -21,6 +21,7 @@
#include <nvgpu/os_sched.h>
#include <nvgpu/gk20a.h>
#include <nvgpu/channel.h>
#include <nvgpu/channel_sync.h>
#include <nvgpu/dma.h>
#include <nvgpu/fence.h>
#include <nvgpu/grmgr.h>
@@ -51,6 +52,8 @@
#include "sync_sema_dma.h"
#include <nvgpu/linux/os_fence_dma.h>
#define NUM_CHANNELS 512U
u32 nvgpu_submit_gpfifo_user_flags_to_common_flags(u32 user_flags)
{
u32 flags = 0;
@@ -653,6 +656,17 @@ u32 nvgpu_channel_get_max_subctx_count(struct nvgpu_channel *ch)
return nvgpu_grmgr_get_gpu_instance_max_veid_count(g, gpu_instance_id);
}
u32 nvgpu_channel_get_synpoints(struct gk20a *g)
{
(void)g;
/*
* The syncpoints should be queried from the DT entry.
* Once support is added in the DT, this function will
* read and return syncpoint entry present in the device tree.
*/
return NUM_CHANNELS;
}
#ifdef CONFIG_DEBUG_FS
static void trace_write_pushbuffer(struct nvgpu_channel *c,
struct nvgpu_gpfifo_entry *g)