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gpu: nvgpu: Use new kmem API functions (channel)

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Use the new kmem API functions in the channel and channel
related code.

Also delete the usage of kasprintf() since that must be paired
with a kfree(). Since the kasprintf() doesn't use the nvgpu kmem
machinery (and is Linux specific) instead use a small buffer
statically allocated on the stack.

Bug 1799159
Bug 1823380

Change-Id: Ied0183f57372632264e55608f56539861cc0f24f
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1318312
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Alex Waterman
2017-03-08 17:07:45 -08:00
committed by mobile promotions
parent 14188ba419
commit 4a94c135f0
5 changed files with 87 additions and 92 deletions
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23
drivers/gpu/nvgpu/gk20a/sched_gk20a.c
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@@ -12,7 +12,6 @@
*/
#include <asm/barrier.h>
#include <linux/slab.h>
#include <linux/kthread.h>
#include <linux/circ_buf.h>
#include <linux/delay.h>
@@ -24,6 +23,8 @@
#include <linux/log2.h>
#include <uapi/linux/nvgpu.h>
#include <nvgpu/kmem.h>
#include "ctxsw_trace_gk20a.h"
#include "gk20a.h"
#include "gr_gk20a.h"
@@ -154,7 +155,7 @@ static int gk20a_sched_dev_ioctl_get_tsgs_by_pid(struct gk20a_sched_ctrl *sched,
return -ENOSPC;
}
bitmap = kzalloc(sched->bitmap_size, GFP_KERNEL);
bitmap = nvgpu_kzalloc(sched->g, sched->bitmap_size);
if (!bitmap)
return -ENOMEM;
@@ -172,7 +173,7 @@ static int gk20a_sched_dev_ioctl_get_tsgs_by_pid(struct gk20a_sched_ctrl *sched,
bitmap, sched->bitmap_size))
err = -EFAULT;
kfree(bitmap);
nvgpu_kfree(sched->g, bitmap);
return err;
}
@@ -650,15 +651,15 @@ int gk20a_sched_ctrl_init(struct gk20a *g)
gk20a_dbg(gpu_dbg_fn | gpu_dbg_sched, "g=%p sched=%p size=%zu",
g, sched, sched->bitmap_size);
sched->active_tsg_bitmap = kzalloc(sched->bitmap_size, GFP_KERNEL);
sched->active_tsg_bitmap = nvgpu_kzalloc(g, sched->bitmap_size);
if (!sched->active_tsg_bitmap)
return -ENOMEM;
sched->recent_tsg_bitmap = kzalloc(sched->bitmap_size, GFP_KERNEL);
sched->recent_tsg_bitmap = nvgpu_kzalloc(g, sched->bitmap_size);
if (!sched->recent_tsg_bitmap)
goto free_active;
sched->ref_tsg_bitmap = kzalloc(sched->bitmap_size, GFP_KERNEL);
sched->ref_tsg_bitmap = nvgpu_kzalloc(g, sched->bitmap_size);
if (!sched->ref_tsg_bitmap)
goto free_recent;
@@ -672,10 +673,10 @@ int gk20a_sched_ctrl_init(struct gk20a *g)
return 0;
free_recent:
kfree(sched->recent_tsg_bitmap);
nvgpu_kfree(g, sched->recent_tsg_bitmap);
free_active:
kfree(sched->active_tsg_bitmap);
nvgpu_kfree(g, sched->active_tsg_bitmap);
return -ENOMEM;
}
@@ -684,9 +685,9 @@ void gk20a_sched_ctrl_cleanup(struct gk20a *g)
{
struct gk20a_sched_ctrl *sched = &g->sched_ctrl;
kfree(sched->active_tsg_bitmap);
kfree(sched->recent_tsg_bitmap);
kfree(sched->ref_tsg_bitmap);
nvgpu_kfree(g, sched->active_tsg_bitmap);
nvgpu_kfree(g, sched->recent_tsg_bitmap);
nvgpu_kfree(g, sched->ref_tsg_bitmap);
sched->active_tsg_bitmap = NULL;
sched->recent_tsg_bitmap = NULL;
sched->ref_tsg_bitmap = NULL;