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misc: mods: add new ioctls

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Add ioctls to read device properties and map proximity id to NUMA node.

Bug 3538850

Change-Id: I65b6decbdfbe12de7d1f1eb3edbb71b9fd56fb8a
Signed-off-by: Chris Dragan <kdragan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2786128
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Chris Dragan
2022-10-03 08:42:09 -07:00
committed by Laxman Dewangan
parent 47a9a4cd68
commit e01a6e01a0
6 changed files with 143 additions and 10 deletions
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61
drivers/misc/mods/mods_pci.c
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@@ -21,11 +21,14 @@
#include "mods_internal.h"
#include <linux/device.h>
#if defined(MODS_HAS_DMA_OPS)
#include <linux/dma-mapping.h>
#endif
#include <linux/io.h>
#include <linux/fs.h>
#include <linux/pci.h>
#if defined(MODS_HAS_DMA_OPS)
#include <linux/dma-mapping.h>
#if KERNEL_VERSION(3, 19, 0) <= MODS_KERNEL_VERSION
#include <linux/property.h>
#endif
int mods_is_pci_dev(struct pci_dev *dev,
@@ -1006,3 +1009,57 @@ error:
return -EINVAL;
#endif
}
#ifdef MODS_HAS_DEV_PROPS
int esc_mods_read_dev_property(struct mods_client *client,
struct MODS_READ_DEV_PROPERTY *p)
{
struct pci_dev *dev = NULL;
int err = -EINVAL;
LOG_ENT();
if (unlikely(p->type != MODS_PROP_TYPE_U64)) {
cl_error("invalid property type %u\n", p->type);
goto error;
}
if (unlikely(sizeof(64) * p->array_size > sizeof(p->output))) {
cl_error("requested size %zu exceeds output array size %zu\n",
sizeof(u64) * p->array_size,
sizeof(p->output));
goto error;
}
if (unlikely(p->array_size == 0)) {
cl_error("invalid output array size 0\n");
goto error;
}
if (!memchr(p->prop_name, 0, sizeof(p->prop_name))) {
cl_error("invalid property name, misses terminating NUL\n");
goto error;
}
err = mods_find_pci_dev(client, &p->pci_device, &dev);
if (unlikely(err)) {
if (err == -ENODEV)
cl_error("dev %04x:%02x:%02x.%x not found\n",
p->pci_device.domain,
p->pci_device.bus,
p->pci_device.device,
p->pci_device.function);
goto error;
}
err = device_property_read_u64_array(&dev->dev, p->prop_name,
(u64 *)p->output, p->array_size);
if (unlikely(err))
cl_error("failed to read property %s\n", p->prop_name);
error:
pci_dev_put(dev);
LOG_EXT();
return err;
}
#endif