Xavier Chip Product POR was updated to 20G only. No more qual work
happening for 16G. So we do not plan to support 16G. Now that we have
a single speed left, remove the code added to support nvlink speed from
VBIOS as it is redundant.
JIRA NVGPU-2964
Change-Id: Icd71ebb8271240818e36d40bf73c60f0c5beb6bf
Signed-off-by: tkudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2284175
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Move code used for transitioning between link and sublink modes
into a separate unit called 'link_mode_transition' under subelement
'nvlink'.
Also aggregate all the link/sublink mode related ops under
g->ops.nvlink.link_mode_transitions.
JIRA NVGPU-2862
Change-Id: I289faa10fd1c83b6b8d028b44fe244531ca42b15
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2035794
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
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MISRA Rule 10.3 does not allow value of expression to be assigned to
an object with a narrower essential type or to a different essential
type category.
Fix such 10.3 violations in nvlink code by type-casting (when sure
there will be no overflows) or by changing the data-type of variables
JIRA NVGPU-1921
Change-Id: Iab103a7f0c23cf2a047152cbd76c0b55b3cc947c
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2012811
Reviewed-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
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Move the code involved in nvlink register initialization into a
separate unit called "nvlink_device_reginit".
Nvlink device_reginit will be an unit under component nvlink_init.
TLC buffer credit initialization is done by this unit.
JIRA NVGPU-1784
Change-Id: I9dd4238d0288b33867eb8a8993e56287a67a907f
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1994665
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Move the code involved in nvlink probe sequence into a separate
unit called "nvlink_probe"
nvlink probe code is spread over both the common and OS specific
nvlink files.
Nvlink Probe unit would encompass code needed to initialize the
nvlink software state. Nvlink software initialization involves:
1. Allocate memory for nvlink_device and nvlink_link structs
2. Read the device tree pci node to know about nvlink topology
3. Initialize nvlink function pointers needed by Tegra nvlink
core-driver
4. Register nvlink_device and nvlink_link with the core-driver.
nvlink probe returns -ENODEV when nvlink is not supported.
Nvlink is not supported in two cases:
1. There is no nvlink IP on the Tegra SoC which is denoted by
CONFIG_TEGRA_NVLINK or
2. The pci device tree node does not have "nvidia,nvlink" child
node needed to describe nvlink topology.
Any negative return value other than -ENODEV denotes failure in
execution of nvlink probe.
JIRA NVGPU-1783
Change-Id: I50011b25d88d8cc01569caac7895abe32ee38215
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1994619
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
