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gpu: nvgpu: linux: add virtual function support

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vf probe is called by pci general probe when platform data indicates
it's a virtual device.
vf_linux covers PCIE specific initialization, then call common vgpu
probe.

Jira GVSCI-15779

Change-Id: I47ce1c4807b23363a9062ff0cbc8e08b9c6cdc97
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2884177
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Richard Zhao
2023-04-03 15:08:35 -07:00
committed by mobile promotions
parent 8a411096c9
commit f9242c032e
5 changed files with 227 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
drivers/gpu/nvgpu/os/linux/pci.c
View File

@@ -52,6 +52,8 @@
#include "driver_common.h"
#include "dmabuf_priv.h"
#include "vgpu/vf_linux.h"
#if defined(CONFIG_NVGPU_HAL_NON_FUSA) && defined(CONFIG_NVGPU_NEXT)
#include <nvgpu_next_chips.h>
#endif
@@ -564,10 +566,30 @@ static int nvgpu_pci_probe(struct pci_dev *pdev,
u32 device_index = PCI_DEVICE_INDEX(pent->driver_data);
u32 device_flags = PCI_DEVICE_FLAGS(pent->driver_data);
/* Allocate memory to hold platform data*/
platform = (struct gk20a_platform *)kzalloc(
sizeof(struct gk20a_platform), GFP_KERNEL);
if (!platform) {
dev_err(&pdev->dev, "couldn't allocate platform data");
return -ENOMEM;
}
/* copy detected device data to allocated platform space*/
err = nvgpu_pci_get_platform_data(platform, device_index);
if (err)
goto err_free_platform;
if (platform->virtual_dev) {
err = vf_probe(pdev, platform);
if (err)
goto err_free_platform;
}
l = kzalloc(sizeof(*l), GFP_KERNEL);
if (!l) {
dev_err(&pdev->dev, "couldn't allocate gk20a support");
return -ENOMEM;
err = -ENOMEM;
goto err_free_platform;
}
g = &l->g;
@@ -578,27 +600,13 @@ static int nvgpu_pci_probe(struct pci_dev *pdev,
nvgpu_kmem_init(g);
/* Allocate memory to hold platform data*/
platform = (struct gk20a_platform *)nvgpu_kzalloc( g,
sizeof(struct gk20a_platform));
if (!platform) {
dev_err(&pdev->dev, "couldn't allocate platform data");
err = -ENOMEM;
goto err_free_l;
}
/* copy detected device data to allocated platform space*/
err = nvgpu_pci_get_platform_data(platform, device_index);
if (err)
goto err_free_platform;
g->is_pci_igpu = platform->is_pci_igpu;
nvgpu_info(g, "is_pci_igpu: %s", g->is_pci_igpu ? "true" : "false");
pci_set_drvdata(pdev, platform);
err = nvgpu_init_errata_flags(g);
if (err)
goto err_free_platform;
goto err_free_l;
err = nvgpu_init_enabled_flags(g);
if (err) {
@@ -783,13 +791,13 @@ err_disable_msi:
nvgpu_free_enabled_flags(g);
err_free_errata:
nvgpu_free_errata_flags(g);
err_free_platform:
nvgpu_kfree(g, platform);
err_free_l:
if (g->is_pci_igpu)
nvgpu_kmem_fini(g, NVGPU_KMEM_FINI_FORCE_CLEANUP);
kfree(l);
err_free_platform:
kfree(platform);
return err;
}