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Add self-tests for BAR1 access during driver probe when
CONFIG_NOVA_CORE_SELFTESTS is enabled (default disabled). This results in
testing the Vmm, GPU buddy allocator and BAR1 region all of which should
function correctly for the tests to pass.
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
[ecourtney: use existing self-test runner and CONFIG_NOVA_CORE_SELFTESTS]
[ecourtney: update for mutable GpuMm, PRAMIN views and VramAddress raw API]
[ecourtney: restore the conditional dead_code expect]
Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260909-mmrebase-v1-16-8dd5d4225d2e@nvidia.com
[acourbot: use vertical import style.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
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Add the page table mapping and unmapping API to the Virtual Memory
Manager, implementing a two-phase prepare/execute model suitable for
use both inside and outside the DMA fence signalling critical path.
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
[ecourtney: pass mutable GpuMm, replace window guards with scoped borrows]
[ecourtney: use current raw address helpers, drop stale expects]
[ecourtney: zero page table pages through one PRAMIN view]
Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260909-mmrebase-v1-13-8dd5d4225d2e@nvidia.com
[acourbot: use vertical import style.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
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Add virtual address range tracking to the VMM using a maple tree
allocator. This enables contiguous virtual address range allocation
for mappings.
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260909-mmrebase-v1-12-8dd5d4225d2e@nvidia.com
[acourbot: use vertical import style.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
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Add the Virtual Memory Manager (VMM) infrastructure for GPU address
space management. Each Vmm instance manages a single address space
identified by its Page Directory Base (PDB) address, used for Channel,
BAR1 and BAR2 mappings.
Mapping APIs and virtual address range tracking are added in later
commits.
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
[ecourtney: pass mutable GpuMm to mapping lookup]
Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260909-mmrebase-v1-11-8dd5d4225d2e@nvidia.com
[acourbot: use vertical import style.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
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