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gpu: nvgpu: define error_notifiers in common code

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All the linux specific error_notifier codes are defined in linux specific
header file <uapi/linux/nvgpu.h> and used in all the common driver

But since they are defined in linux specific file, we need to move all the
uses of those error_notifiers in linux specific code only

Hence define new error_notifiers in include/nvgpu/error_notifier.h and
use them in the common code

Add new API nvgpu_error_notifier_to_channel_notifier() to convert common
error_notifier of the form NVGPU_ERR_NOTIFIER_* to linux specific error
notifier of the form NVGPU_CHANNEL_*

Any future additions to error notifiers requires update to both the form
of error notifiers

Move all error notifier related metadata from channel_gk20a (common code)
to linux specific structure nvgpu_channel_linux
Update all accesses to this data from new structure instead of channel_gk20a

Move and rename below APIs to linux specific file and declare them
in error_notifier.h
nvgpu_set_error_notifier_locked()
nvgpu_set_error_notifier()
nvgpu_is_error_notifier_set()

Add below new API and use it in fifo_vgpu.c
nvgpu_set_error_notifier_if_empty()

Include <nvgpu/error_notifier.h> wherever new error_notifier codes are used

NVGPU-426

Change-Id: Iaa5bfc150e6e9ec17d797d445c2d6407afe9f4bd
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1593361
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Deepak Nibade
2017-11-06 05:44:23 -08:00
committed by mobile promotions
parent a0cea295e7
commit c6b9177cff
10 changed files with 285 additions and 138 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
drivers/gpu/nvgpu/common/linux/ioctl_channel.c
View File

@@ -30,6 +30,7 @@
#include <nvgpu/list.h>
#include <nvgpu/debug.h>
#include <nvgpu/enabled.h>
#include <nvgpu/error_notifier.h>
#include "gk20a/gk20a.h"
#include "gk20a/dbg_gpu_gk20a.h"
@@ -227,15 +228,17 @@ static int gk20a_channel_set_wdt_status(struct channel_gk20a *ch,
static void gk20a_channel_free_error_notifiers(struct channel_gk20a *ch)
{
nvgpu_mutex_acquire(&ch->error_notifier_mutex);
if (ch->error_notifier_ref) {
dma_buf_vunmap(ch->error_notifier_ref, ch->error_notifier_va);
dma_buf_put(ch->error_notifier_ref);
ch->error_notifier_ref = NULL;
ch->error_notifier = NULL;
ch->error_notifier_va = NULL;
struct nvgpu_channel_linux *priv = ch->os_priv;
nvgpu_mutex_acquire(&priv->error_notifier.mutex);
if (priv->error_notifier.dmabuf) {
dma_buf_vunmap(priv->error_notifier.dmabuf, priv->error_notifier.vaddr);
dma_buf_put(priv->error_notifier.dmabuf);
priv->error_notifier.dmabuf = NULL;
priv->error_notifier.notification = NULL;
priv->error_notifier.vaddr = NULL;
}
nvgpu_mutex_release(&ch->error_notifier_mutex);
nvgpu_mutex_release(&priv->error_notifier.mutex);
}
static int gk20a_init_error_notifier(struct channel_gk20a *ch,
@@ -244,6 +247,7 @@ static int gk20a_init_error_notifier(struct channel_gk20a *ch,
struct dma_buf *dmabuf;
void *va;
u64 end = args->offset + sizeof(struct nvgpu_notification);
struct nvgpu_channel_linux *priv = ch->os_priv;
if (!args->mem) {
pr_err("gk20a_init_error_notifier: invalid memory handle\n");
@@ -273,14 +277,15 @@ static int gk20a_init_error_notifier(struct channel_gk20a *ch,
return -ENOMEM;
}
ch->error_notifier = va + args->offset;
ch->error_notifier_va = va;
memset(ch->error_notifier, 0, sizeof(struct nvgpu_notification));
priv->error_notifier.notification = va + args->offset;
priv->error_notifier.vaddr = va;
memset(priv->error_notifier.notification, 0,
sizeof(struct nvgpu_notification));
/* set channel notifiers pointer */
nvgpu_mutex_acquire(&ch->error_notifier_mutex);
ch->error_notifier_ref = dmabuf;
nvgpu_mutex_release(&ch->error_notifier_mutex);
nvgpu_mutex_acquire(&priv->error_notifier.mutex);
priv->error_notifier.dmabuf = dmabuf;
nvgpu_mutex_release(&priv->error_notifier.mutex);
return 0;
}
@@ -1361,7 +1366,7 @@ long gk20a_channel_ioctl(struct file *filp,
break;
}
err = ch->g->ops.fifo.force_reset_ch(ch,
NVGPU_CHANNEL_RESETCHANNEL_VERIF_ERROR, true);
NVGPU_ERR_NOTIFIER_RESETCHANNEL_VERIF_ERROR, true);
gk20a_idle(ch->g);
break;
case NVGPU_IOCTL_CHANNEL_EVENT_ID_CTRL: