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PCI: EPF: tvnet: fixed the fence memory issue

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1.Make the allocate_fence() thread-safe
2.Update the fence_do_work according to auto
  fix: https://nvbugs/4539983
3.Shouldn't creat fence in callback
4.There was typo which mixed ctrl with data.

Bug 4456727
Bug 4451567

Change-Id: If7676c8d77dc40bd5f77927efa7616e7970da183
Signed-off-by: Jason Mei <jianjunm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3087944
Reviewed-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Jason Mei
2024-02-29 13:18:56 +08:00
committed by mobile promotions
parent d495adaddf
commit 396db89160
1 changed files with 10 additions and 8 deletions
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18
drivers/pci/endpoint/functions/pci-epf-tegra-vnet.c
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@@ -960,14 +960,15 @@ allocate_fence(struct syncpt_t *syncpt)
int ret = 0;
struct dma_fence *fence = NULL;
mutex_lock(&syncpt->lock);
fence = host1x_fence_create(syncpt->sp, ++syncpt->threshold, false);
if (IS_ERR_OR_NULL(fence)) {
ret = PTR_ERR(fence);
pr_err("host1x_fence_create failed with: %d\n", ret);
mutex_unlock(&syncpt->lock);
return ret;
}
mutex_lock(&syncpt->lock);
ret = dma_fence_add_callback(fence, &syncpt->fence_cb, host1x_cb_func);
if (ret != 0) {
/* If already expired. */
@@ -999,8 +1000,10 @@ fence_do_work(struct syncpt_t *syncpt)
mutex_lock(&syncpt->lock);
/* If deinit triggered, no need to proceed. */
if (syncpt->fence_release)
if (syncpt->fence_release) {
mutex_unlock(&syncpt->lock);
return;
}
if (syncpt->fence) {
dma_fence_put(syncpt->fence);
@@ -1010,7 +1013,6 @@ fence_do_work(struct syncpt_t *syncpt)
ret = allocate_fence(syncpt);
if (ret != 0) {
mutex_unlock(&syncpt->lock);
pr_err("allocate_fence failed with: %d\n", ret);
return;
}
@@ -1088,15 +1090,15 @@ static int tvnet_ep_poll(struct napi_struct *napi, int budget)
{
struct pci_epf_tvnet *tvnet = container_of(napi, struct pci_epf_tvnet,
napi);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 0))
struct irqsp_data *data_irqsp = tvnet->data_irqsp;
#endif
int work_done;
work_done = tvnet_ep_process_h2ep_msg(tvnet);
if (work_done < budget) {
napi_complete(napi);
#if (LINUX_VERSION_CODE > KERNEL_VERSION(5, 14, 0))
schedule_work(&data_irqsp->syncpt.work);
#else
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 0))
schedule_work(&data_irqsp->reprime_work);
#endif
}
@@ -1246,8 +1248,8 @@ static int tvnet_ep_pci_epf_setup_irqsp(struct pci_epf_tvnet *tvnet)
#if (LINUX_VERSION_CODE > KERNEL_VERSION(5, 14, 0))
syncpt_addr = get_syncpt_shim_offset(data_irqsp->syncpt.id);
ctrl_irqsp->syncpt.phy_addr = syncpt_addr;
ctrl_irqsp->syncpt.size = PAGE_SIZE;
data_irqsp->syncpt.phy_addr = syncpt_addr;
data_irqsp->syncpt.size = PAGE_SIZE;
#else
syncpt_addr = nvhost_interrupt_syncpt_get_syncpt_addr(data_irqsp->is);
#endif