Syncpoint IRQs are currently requested in a code path that runs
during resume. Due to this, we get multiple overlapping registered
interrupt handlers as host1x is suspended and resumed.
Rearrange interrupt code to only request IRQs during initialization.
Bug 4658418
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I25e129452aeb39c23aa2d6f6a54729f60390d088
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3145171
Reviewed-by: Santosh BS <santoshb@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@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>
On Tegra234, each Host1x VM has 8 interrupt lines. Each syncpoint
can be configured with which interrupt line should be used for
threshold interrupt, allowing for load balancing.
For now, to keep backwards compatibility, just set all syncpoints
to the first interrupt.
Bug 3724727
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I7058f9bd38bc59db83ee92613e4e733813db7a46
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2745954
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 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
