Add API for reading the activity monitor average count for VIC,
NVENC, and NVDEC. There is currently no support for initializing
actmon, so this relies on someone else on a virtualized system
having initialized it (and mapped the actmon region read-only).
Bug 3973633
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: Ia1bfec6a090d4effb288b17cbac4d42bf5d0b4e5
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2864719
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
The error handling for platform_get_irq() failing no longer works after
a recent change, clang now points this out with a warning:
drivers/gpu/host1x/dev.c:520:6: error: variable 'syncpt_irq' is uninitialized when used here [-Werror,-Wuninitialized]
if (syncpt_irq < 0)
^~~~~~~~~~
Fix this by removing the variable and checking the correct error status.
Fixes: 625d4ffb438c ("gpu: host1x: Rewrite syncpoint interrupt handling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I780c935101b8c65070eeba3552f96a1bfb109592
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2853776
Reviewed-by: Santosh BS <santoshb@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Add support for syncpoint pools. These are configuration-dependent
subsets of syncpoints that can only be allocated by specifying
an allocation specifically from that pool.
In this patch, we add support for the GPU pool. On certain systems,
the GPU is for safety purposes limited to accessing a specific set
of syncpoints. Therefore, syncpoints allocated for GPU use need to
come from this pool.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I385b8bdfdac8573b26f0b1a0feaf05de071148a1
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2826198
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-by: Sanif Veeras <sveeras@nvidia.com>
Reviewed-by: Raghavendra Vishnu Kumar <rvk@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Tested-by: Sanif Veeras <sveeras@nvidia.com>
Add support for running as a guest system under a hypervisor, using
Host1x HW's virtualization capabilities.
In effect this involves not touching apertures other than the 'vm'
aperture, and channels and syncpoints other than those that are
assigned to the VM.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: Ideec5b0b9a692aa3ee6b4a0240c5755c983cb7bd
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2811837
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Move from the old, complex intr handling code to a new implementation
based on dma_fences. While there is a fair bit of churn to get there,
the new implementation is much simpler and likely faster as well due
to allowing signaling directly from interrupt context.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I81c47fa1946679813f90e3fd8e1d1e9d6342143e
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2786635
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Add support for the optical flow accelerator. Implementation is the
same as for other Falcons except that we omit some legacy things
since the engine only exists from T234 onwards, and the addition
of having to initialize the OFA's safety RAM before boot.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I9612e82a116cc76be492a0c533afce67c42f6a2c
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2784964
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Program virtualization tables specifying which VMs have access to which
Host1x hardware resources. Programming these has become mandatory in
Tegra234.
For now, since the driver does not operate as a Host1x hypervisor, we
basically allow access to everything to everyone.
Bug 3724727
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I67e09e7d9c55128c40c54c078912cc38c7616eac
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2745952
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Brad Griffis <bgriffis@nvidia.com>
Add code to register context devices from device tree, allocate them
out and manage their refcounts.
Bug 3724727
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I1e50462fc07247faf4cb217f4ab75fb610b10024
Update the host1x driver to align with the latest upstream host1x
driver from Linux v5.19-rc1. Please note that the context bus support
is not included, because this needs to be built into the kernel.
Bug 3724727
Change-Id: Ic6fbe001462d160d1bb24f76038dd755c5550690
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2739538
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Add the upstream host1x driver with the 'Host1x/Tegra UAPI' series [0]
applied. This driver will be built as an external module for use with
the NVGPU driver on upstream Linux kernels.
The following modifications have been made to the series posted upstream
1. Update the Makefile to always build the driver as a module
2. Remove the tests to see if CONFIG_DRM_TEGRA_STAGING is enabled
3. Rename the include/linux/host1x.h to include/linux/host1x-next.h to
avoid conflicts with upstream headers when building as an external
module.
4. Rename the include/uapi/linux/host1x.h to
include/uapi/linux/host1x-next.h to avoid conflicts with upstream
headers when building as an external module.
5. Rename the module that is built to be host1x-next.ko instead of
host1x.ko to avoid any depmod conflicts with the upstream driver.
[0] https://patchwork.ozlabs.org/project/linux-tegra/list/?series=215770
Bug 3156385
Change-Id: Ic60299546809097dd0e4a9a7157bce1491d9f794
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2435801
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
