If fork() is called, clear all duplicated data that is invalid in the
child process.
Change-Id: I4e27198060db593c630c6337b7071dfbd0d80b83
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
CWSR buffers can be large on dGPUs (~21MB on gfx803). Allocating them
in VRAM limits the number of queues that can be created unnecessarily.
Also make freeing of per-queue buffers symmetric with allocation. All
buffers are now allocated with allocate_exec_aligned_memory on dGPUs
and APUs, so use free_exec_aligned_memory to free them.
Change-Id: I45e8cb1801857d0268750202cdd422426611e457
Also emit error messages to stderr if no async queue error callback was registered and queue fault messages are enabled (on by default).
Queue fault messages are controlled with env key HSA_ENABLE_QUEUE_FAULT_MESSAGE.
Change-Id: I496487b8d048b83aa95b9784e92928211f167b17
Uncommented HSA IPC code.
Changed hsa_amd_ipc_memory_t to be 8 uint32_t's instead of 9 to
match spec
Change-Id: Id1523125e9b876a23c3743df1be29c98b47f6725
Implement three new APIs for IPC buffer sharing:
-hsaKmtShareMemory()
-hsaKmtRegisterSharedHandle()
-hsaKmtRegisterSharedHandleToNodes()
Add new ioclts necessary for the above APIs.
Change-Id: Ia2b4d0dc91ec64bff959395d11c0536467404792
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
A memory region is allowed to be registered multiple times when the memory
is specified by a user pointer. If it's registered with the same user
pointer but with different sizes, it's treated as different instances and
multiple VM objects are created with different GPU address.
Change-Id: I49627111bb5db36d18f1133b252fb62a611f06a4
Currently, if a process' parent called hsaKmtOpen, the child will be
unable to open a connection to KFD, since kfd_open_count will be > 0.
When forking, the refcount should be reset, in order to allow the child
to re-open /dev/kfd.
Change-Id: Ia4b78f6bacc4f82e8ac724e5f488a3eff5084007
Ensure that the write index and ring buffer contents are visible
to the HW before sending the doorbell. The latter is a write-combined
MMIO store and must be ordered with prior cacehable non-MMIO stores.
Also be more explicit about memory semantics for doorbell stores.
Change-Id: Ie4d96a7ee2a507237a8dbe7705fdf234d62ce9ba
gfx802 requires a workaround for a VM TLB bug in which lookups use
the ACTIVE bit of the 8th PTE within any aligned group of 8 PTEs.
Until this is fixed in amdgpu the GPUVM doorbell logic will fail.
Change-Id: I5ec7b1fcd8b7677011a141d27cfc486c45d9a415
Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com>
If we issue too many copy commands without syncing and wrapping happens,
we need to wait for the blits to be done before moving forward otherwise
we will overwrite the kernel args of the blits in flight.
Change-Id: I9a21e31ce07f8e8157ca38e96dc264ff47fd3639
Allocate doorbells for dGPUs in the SVM aperture and map them for
GPU access. This is necessary to allow GPU-initiated submissions to
user mode queues.
Depends on new doorbell BO allocation flag in KFD.
Change-Id: I0737bef4a4764bb4a66c43846707ead2108f6601
CPU cache information reported by Thunk topology is obtained from cpuid
instruction. This instruction only applies to X86 systems. It can cause
compile errors on non-X86 platforms. This patch temporarily disables CPU
cache functions in topology for non-X86 platforms in order to compile.
Change-Id: If86671817b0d036cb324eebf3f354682bfb75856
Add vm_find_object_by_userptr_range so QueryPointerInfo can find the
object as well when the pointer is not the starting address but it's
inside the memory range. Also rename vm_find_object_xxx functions to
_by_address and _by_address_range to be consistent.
Change-Id: I5c2b3a05b41493e32b7fd9154665bf078b043606
Introducing tiling format for images, still using LINEAR for now.
Using the new KFD/Thunk API hsaKmtGetTileConfig API for the address library.
Change-Id: Ic0677429dd320eef09ab62dddaf9b2dd94c4f904
Add CPUVM aperture to keep track of memory allocation that is not known
to GPU driver. Together with GPUVM, this patch adds the pointer attributes
support to APU.
Change-Id: If13f9cf01ff8b9f709b99b66661e7505246adf4c
Add two pointer attributes APIs:
hsaKmtQueryPointerInfo - allow the user to query the memory information
using a pointer. This pointer can point to any address inside the
range known to HSA.
hsaKmtSetMemoryUserData - allow the user to attach data to a pointer to
add memory tracking information. This pointer must match the start
address of a memory allocation or registration.
TODO: This patch implements support on dGPU. Needs to add APU.
Change-Id: I4711809274248434901f0794f50ebfa13a7371a8
Christophe Paquot
Harish Kasiviswanathan
Kent Russell
Felix Kuehling
Sean Keely
James Edwards
Chris Freehill
Konstantin Zhuravlyov
Ramesh Errabolu
Amber Lin
Yong Zhao
Andres Rodriguez
Jay Cornwall