split pmu include files to add lot more APIs
pmu_api.h - all the current APIs used in igpu
pmu_common.h - common defines for all APIs
pmu_gk20a.h - SW defines specific needed for nvgpu
like PMU version, PMU SW structure definition etc.
Splitting APIs to separate files allows us to use auto
generated PMU task headers from RM
We have script which generates pmu interface herader files
in linux format. It replaces RM with NV. Adding typedef in existing pmu
code make auto generated files easy to compile/add
JIRA DNVGPU-85
Change-Id: I851b88769fe8d60561a44754ddb7dde45b45959e
Signed-off-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-on: http://git-master/r/1192702
Reviewed-on: http://git-master/r/1203124
(cherry picked from commit 0fe5f020c3f934cf2cc5336f1b6c3bafaf9e0c2a)
Reviewed-on: http://git-master/r/1217301
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Sequence to reset PMU is different for iGPU and dGPU. Specialize
and implement iGPU version.
Change-Id: I5b9ff2c018a736bc9e27b90d0942c52706b12a12
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1150540
Use struct device instead of struct platform_device wherever
possible. This allows adding other bus types later.
Change-Id: I1657287a68d85a542cdbdd8a00d1902c3d6e00ed
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1120466
- pmu version update to sync with CL-19816709
- GPCCS version update to sync with CL-19816709
Change-Id: Ia60bb538ddba35c973183ca2d4d3a7a0013b4b59
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/779628
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
bug 200080684
use new cmd defined in ucode for loading
GR falcons. flip PRIV load flag in lsb
header to indicate using dma. use pmu msg
as cmd completion for new cmd instead of
polling fecs mailbox. also move
check for using dma in non secure boot path
to hal.
Change-Id: I22582a705bd1ae0603f858e1fe200d72e6794a81
Signed-off-by: Vijayakumar <vsubbu@nvidia.com>
Reviewed-on: http://git-master/r/761625
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
This reverts commit ce1cf06b9a8eb6314ba0ca294e8cb430e1e141c0 since
it causes GPU pbdma interrupt to be generated.
Bug 200106514
Change-Id: If3ed9a914c4e3e7f3f98c6609c6dbf57e1eb9aad
Signed-off-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-on: http://git-master/r/749291
Implement a new buddy allocation scheme for the GPU's VA space.
The bitmap allocator was using too much memory and is not a scaleable
solution as the GPU's address space keeps getting bigger. The buddy
allocation scheme is much more memory efficient when the majority
of the address space is not allocated.
The buddy allocator is not constrained by the notion of a split
address space. The bitmap allocator could only manage either small
pages or large pages but not both at the same time. Thus the bottom
of the address space was for small pages, the top for large pages.
Although, that split is not removed quite yet, the new allocator
enables that to happen.
The buddy allocator is also very scalable. It manages the relatively
small comptag space to the enormous GPU VA space and everything in
between. This is important since the GPU has lots of different sized
spaces that need managing.
Currently there are certain limitations. For one the allocator does
not handle the fixed allocations from CUDA very well. It can do so
but with certain caveats. The PTE page size is always set to small.
This means the BA may place other small page allocations in the
buddies around the fixed allocation. It does this to avoid having
large and small page allocations in the same PDE.
Change-Id: I501cd15af03611536490137331d43761c402c7f9
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/740694
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Introduce mem_desc, which holds all information needed for a buffer.
Implement helper functions for allocation and freeing that use this
data type.
Change-Id: I82c88595d058d4fb8c5c5fbf19d13269e48e422f
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/712699
Merge initialization code from gk20a_init_system_vm(),
gk20a_init_bar1_vm() and gk20a_vm_alloc_share() into gk20a_init_vm().
Remove redundant page size data, and move the page size fields to be
VM specific.
Bug 1558739
Bug 1560370
Change-Id: I4557d9e04d65ccb48fe1f2b116dd1bfa74cae98e
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Modify the 3d.emc policy to use a formula based on bandwidth and
utilization instead of the current sku-dependent policy.
Bug 1364894
Change-Id: Id97f765a48f0aa9f5ebeb0c82bccb22db474a1ae
Signed-off-by: Samuel Russell <samuelr@nvidia.com>
Reviewed-on: http://git-master/r/453586
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
"isr_enable_lock" was used to protect pmu's isr_enabled flag
and pmu enable/disable calls
Instead of this extra lock, we can reuse "isr_mutex" for this
purpose
Bug 200014542
Bug 200014887
Change-Id: Ifbb7d6108effc132266a20517820e470d52a7110
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/453348
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reading the load value may increase CPU power consumption
temprorarily. In most cases we are ok with a value that
was read a moment earlier.
This patch introduces a software shadow for gpu load. The shadow
is updated before starting scaling and all scaling code paths use
the sw shadow.
Change-Id: I53d2ccb8e7f83147f411a14d3104d890dd9af9a3
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/453347
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
For LS PMU new ucode needs to be used.
Ucode has interface header file changes too.
This patch also has fixes for pmu dmem copy failure
Bug 1509680
Change-Id: I8c7018f889a82104dea590751e650e53e5524a54
Signed-off-by: Supriya <ssharatkumar@nvidia.com>
Reviewed-on: http://git-master/r/441734
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Possible race description :
- while PMU is booting, it sends messages to kernel which we process
in gk20a_pmu_isr()
- but when messages are processed it is possible that we are on the way
to rail gate the GPU and we have already called pmu_destroy()
- this could lead to hangs if while processing messages, GR is
already off
To fix this, introduce another mutex isr_enable_lock and a flag to
turn on/off ISRs
- when we enable PMU, get the lock and set the flag
- in pmu_destroy(), get the lock and remove the flag
- in pmu_isr(), take the lock, check if flag is set or not. If flag
is not set return, otherwise proceed with the messages
Bug 200014542
Bug 200014887
Change-Id: I0204d8a00e4563859eebc807d4ac7d26161316ea
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/428371
(cherry picked from commit 9a37528314f2a2504e4530719f817a93db9a5bf0)
Reviewed-on: http://git-master/r/428352
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Add PMU state ELPG booting. Prevent ISR processing when PMU is in OFF
state.
Bug 200006956
Change-Id: Ibcf69a2d81965cc87f520bf864c4425681f04531
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/424769
pmu_gk20a has a pointer to struct gk20a *. As pmu_gk20a is part of
gk20a, there's no need to have the circular dependency.
Bug 200006956
Change-Id: I6d5d10a93b2fba4a26a1e28b3c5206506dc6cc04
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/424767
