To enable userspace query about comptags allocation status of a buffer,
comptags are to be allocated only during buffer registration done by
nvrm_gpu. Earlier, they were allocated during map.
nvrm_gpu will be sending metadata blob to be associated with the buffer.
This will have to be stored in the dmabuf privdata for all the buffers
registered by nvrm_gpu.
This patch moves the privdata allocation to buffer registration ioctl.
Remove g->mm.priv_lock as it is not needed now. This lock was added
to protect dmabuf private data setup. That private data is now
handled through dmabuf->ops and setup of dmabuf->ops is done
under dmabuf->lock.
To support legacy userspace, this patch still allocates comptags on
demand on map calls for unregistered buffers.
Bug 200586313
Change-Id: I88b2ca04c733dd02a84bcbf05060bddc00147790
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2480761
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By always mapping gmmu kernel page using 4kB page, it'll be consistent
with native nvgpu driver. It's a workaround for enabling 64KB os kernel
page support.
In long term solution, GMMU_PAGE_SIZE_KERNEL will be os kernel page
size, and function nvgpu_gmmu_update_page_table will choose big page or
small page by comparing the size of GMMU_PAGE_SIZE_KERNEL with the size
of small or big pages. Regardingly vgpu will choose kernel page size by
comparing the size too when send map commands to server.
Bug 3015296
Bug 3015296
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Change-Id: I5d25280a9410da3ef628e5914ea962a76b102273
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2437193
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Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
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GVS: Gerrit_Virtual_Submit
MISRA rule 11.2 doesn't allow conversions of a pointer from or to an
incomplete type. These type of conversions may result in a pointer
aligned incorrectly and may further result in undefined behavior.
This patch addresses rule 11.2 violations related to pointers to and
from struct nvgpu_sgl. This patch replaces struct nvgpu_sgl pointers by
void pointers.
Jira NVGPU-3736
Change-Id: I8fd5766eacace596f2761b308bce79f22f2cb207
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2267876
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There are many miscellaneous HALs for various MM related functionality.
This patch aims to migrate all the remaining MM code from the <chip>/
mm_<chip>.[ch] files in HAL files under hal/.
Much of this is fairly straightforward copy/paste and updates to the
HAL init files.
The exception to that is the move of the left over gv11b MMU fault
handling code in mm_gv11b.c. Having both a hal/mm/mm/mm_gv11b.c and
a gv11b/mm_gv11b.c file causes tmake to choke so the gv11b/mm_gv11b.c
file was moved to gv11b/mmu_fault_gv11b.c. This will be cleaned up in
a subsequent patch.
JIRA NVGPU-2042
Change-Id: I12896de865d890a61afbcb71159cff486119ffb8
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2109050
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Move the gk20a_init_mm_setup_hw to common code. This function just
calls HALs to initialize various bits of HW. However, since this
code assumes that (some of) the HALs are present this code is treated
as a vGPU HAL (that is it's NULL for vGPU).
This patch also renames the MM HW init HAL.
Sicne the gv11b variant of this setup_hw HAL did have some differences
from the gk20a version the new common version required some work. The
gv11b code was copied into the common function but now the gv11b
specific calls were HAL'ified (since they will need to be anyway for
the MMU fault buf code) and protected by an if-condition.
JIRA NVGPU-2042
Change-Id: I959293394ee8793923d858ee37b7ce346096654f
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2104541
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- delete vgpu_is_reduced_bar1(). Current implementation maps only
that portion of BAR1 that is reserved for guest in case of
reduced BAR1. However this code is obsolete and reduced BAR1
check is always false. Delete related function vgpu_is_reduced_bar1()
and conditional mapping.
- move vgpu_mm_bar1_map_userd() delcaration from vgpu.h
to mm_vgpu.h
- move vgpu_gp10b_init_hal() and vgpu_gv11b_init_hal()
declarations from vgpu.h to new header files
vgpu/gp10b/vgpu_hal_gp10b.h and vgpu/gv11b/vgpu_hal_gv11b.h
respectively.
Jira GVSCI-334
Change-Id: I11a297a0aba1afd8b0ad022169ba7f734bcd952c
Signed-off-by: Aparna Das <aparnad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2081152
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vgpu_mm_gp10b files contained gp10b specific code.
- vgpu_gp10b_locked_gmmu_map function is common to all
chips. Rename this function to vgpu_locked_gmmu_map
and move this function implementation to to mm_vgpu
file.
- diable_bigpage variable is set to false in
vgpu_gp10b_init_mm_setup_hw function. This is not related
to mm hw initialization. Move this assignment to
vgpu_init_variables along with other mm specific initialization
as done for native.
Change-Id: I4aba3096a3c945b8b3f4175382ebc78322e1d16e
Signed-off-by: Aparna Das <aparnad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2028862
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Create a new directory mm under common vgpu path moving
all vgp common mm files under that directory. This follows
native directory structure.
Move vgpu vm functions from mm_vgpu.c to a new file vm_vgpu.c.
Rename corresponding header file from vm.h to vm_gpu.h
Jira GVSCI-334
Change-Id: Ib77efca0b919478284101894ab16919ba03f71d2
Signed-off-by: Aparna Das <aparnad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2013352
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