Rename __nvgpu_set_enabled() to nvgpu_set_enabled(). The original
double underscore was present to indicate that this function is a
function with potentially unintended side effects (enabling a feature
has wide ranging impact).
To not lose this documentation a comment was added to convey that this
function must be used with care.
JIRA NVGPU-1029
Change-Id: I8bfc6fa4c17743f9f8056cb6a7a0f66229ca2583
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1989434
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This unit test verifies that the PD cache is capable of packing
multiple PD allocations into a single page. The verification works
by using the DMA fault injection method to prevent more than one
DMA alloc from happening in the pd_cache code.
If an OOM error is detected by the pd_cache code before the max
number of PDs per page is allocated by the pd_cache then there's
a failure in the packing code.
The correct number of PDs per page is easy to calculate: it's
just PAGE_SIZE / pd_size.
JIRA NVGPU-1323
Change-Id: I2c5b58ecf32da48d503c576012d9e564a270144c
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1970876
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
GVS: Gerrit_Virtual_Submit
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There were several places were nvgpu_mem structs were declared on the
stack and not initialized. Some fields could be used erroneously by
underlying APIs.
To allow the initialization of an array of nvgpu_mem in
test_dma_alloc_fi_delayed_enable(), the array length had to be changed
from a const to a macro.
JIRA NVGPU-1563
Change-Id: I6c23445af7d932710898df2e23a8fd892bee77b3
Signed-off-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1967966
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
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Add a flag that let's userspace enable the unified VM functionality
on a selective bassis. This feature is working for all cases except
a single MODS trace. This will allow test coverage to be selectively
added in certain userspace tests as well to help prevent this feature
from bit rotting (as it has historically done).
Also update the unit test for the page table management in the GMMU
to reflect this new flag. It's been set to false since the target
platform for safety is currently not using unified address spaces.
Bug 200438879
Change-Id: Ibe005472910d1668e8372754be8dd792773f9d8c
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1951864
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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The pd_cache header declarations were oriignally part of the
gmmu.h header. This is not good from a unit isolation perspective
so this patch moves all the pd_cache specifics over to a new
header file: <nvgpu/pd_cache.h>.
Also a couple of static inlines that were possible when the code
was part of gmmu.h were turned into real, first class functions.
This allowed the pd_cache.h header to not include the gmmu.h
header file.
Also fix an issue in the nvgpu_pd_write() function where the data
was being passed as a size_t for some reason. This has now been
changed to a u32.
JIRA NVGPU-1444
Change-Id: Ib9e9e5a54544de403bfcd8e11c30de05721ddbcc
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1966352
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This reverts commit 15603b9fd5.
Causes a build break in the PD cache unit test. Not sure how this
passed GVS - must have been a race or something? Unclear.
Change-Id: Ia484a801d098d69441326fa1dd40a1c86e2e23ce
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1966335
The pd_cache header declarations were originally part of the
gmmu.h header. This is not good from a unit isolation perspective
so this patch moves all the pd_cache specifics over to a new
header file: <nvgpu/pd_cache.h>.
Also a couple of static inlines that were possible when the code
was part of gmmu.h were turned into real, first class functions.
This allows the pd_cache.h header to not include the gmmu.h
header file.
Also fix an issue in the nvgpu_pd_write() function where the data
was being passed as a size_t for some reason. This has now been
changed to a u32.
JIRA NVGPU-1444
Change-Id: Iead9a0d998396d2289ffcb3b48765d770400397b
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1965271
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Split the nvgpu_sgt code out from the nvgpu_mem code. Although the
two chunks of code are related the SGT code is distinct and as
such should be its own unit. To do this a new source file has been
added - nvgpu_sgt.c - which contains all the nvgpu_sgt common APIs.
These are the facade APIs to abstract the actual details of how any
given nvgpu_sgt is actually implemented.
An abstract unit - nvgpu_sgt_os - was also defined. This unit
exists solely for the nvgpu_sgt unit to call so that the OS
specific nvgpu_sgt_os_create_from_mem() API can be moved from the
common nvgpu_sgt unit. Note this also updates the name of what the
OS specific units are expected to call. Common code may still use
the generic nvgpu_sgt_create_from_mem() API.
JIRA NVGPU-1391
Change-Id: I37f5b2bbf9f84c0fb6bc296c3e04ea13518bd4d0
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1946012
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
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This unit test covers the page_table map/unmap logic as well
as low level PDE/PTE handling.
This patch contains a first phase aiming to cover most
functionality and code coverage but it does not cover
most error handling cases nor formal requirements.
JIRA NVGPU-907
Change-Id: I3b63cfce6cee27d01e1ef54c763560a542992d33
Signed-off-by: Nicolas Benech <nbenech@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1950974
Reviewed-by: Philip Elcan <pelcan@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
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Add a unit test to cover the pd_cache unit. This unit is
responsible for maintaining the page directory allocations.
It's effectively a DMA slab allocator since we want to be
able to pack multiple sub page sized page directories into
a single page.
JIRA NVGPU-1323
Change-Id: If65a803cf2ee5af9938668958b9353d50b2e98f9
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1942248
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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This unit test covers the nvgpu allocator high level logic for
calling nvgpu allocator imlementation routines. The nvgpu_allocator
code is generally very simple.
This gets to >90% coverage of the module. Once the fault injection
code is merged the failure path after nvgpu_mutex_init() will also
be coverable.
JIRA NVGPU-903
Change-Id: I7e180da9cbc518b6568c240fd5e67a233b17edc6
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1927642
Reviewed-by: Philip Elcan <pelcan@nvidia.com>
GVS: Gerrit_Virtual_Submit
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