nv-tegra-mirror/linux-nv-oot
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-24 10:11:26 +03:00
Code Issues Packages Projects Releases Wiki Activity

misc: mods: synchronize with Perforce

Browse Source 
Change-Id: Icfce1a3aa22d84cbd4825ab4fbce86970e2261f4
Signed-off-by: Koen Zhao <koenz@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2474042
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Chris Dragan <kdragan@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
koenz
2021-01-22 11:58:02 +08:00
committed by Laxman Dewangan
parent 32e7a1caab
commit d711403132
5 changed files with 63 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/misc/mods/mods_pci.c
View File

@@ -367,6 +367,7 @@ int esc_mods_pci_read_2(struct mods_client *client, struct MODS_PCI_READ_2 *p)
{
struct pci_dev *dev;
int err;
int dbdf;
LOG_ENT();
@@ -410,19 +411,27 @@ int esc_mods_pci_read_2(struct mods_client *client, struct MODS_PCI_READ_2 *p)
p->data_size,
p->data);
dbdf = (int)(((u32)p->pci_device.domain << 16) |
((u32)(p->pci_device.bus & 0xFFU) << 8) |
(u32)(p->pci_device.device & 0xFFU));
/* Usually one of the first reads from PCI config space occurs
* at address 0 and or 2 to read PCI device vendor/id.
* If this reads all Fs, the device probably fell off the bus.
*/
if (p->address <= 4 && (p->data == ~0U || p->data == 0xFFFFU))
cl_warn("pci read dev %04x:%02x:%02x.%x, addr 0x%04x, size %u, data 0x%x\n",
p->pci_device.domain,
p->pci_device.bus,
p->pci_device.device,
p->pci_device.function,
p->address,
p->data_size,
p->data);
if (p->address <= 4 && (p->data == ~0U || p->data == 0xFFFFU)) {
if (dbdf != atomic_read(&client->last_bad_dbdf))
cl_warn("pci read dev %04x:%02x:%02x.%x, addr 0x%04x, size %u, data 0x%x\n",
p->pci_device.domain,
p->pci_device.bus,
p->pci_device.device,
p->pci_device.function,
p->address,
p->data_size,
p->data);
atomic_set(&client->last_bad_dbdf, dbdf);
} else if (dbdf == atomic_read(&client->last_bad_dbdf))
atomic_set(&client->last_bad_dbdf, -1);
pci_dev_put(dev);
LOG_EXT();