diff options
Diffstat (limited to 'Documentation/gpu/amdgpu')
| -rw-r--r-- | Documentation/gpu/amdgpu/amdgpu-glossary.rst | 23 | ||||
| -rw-r--r-- | Documentation/gpu/amdgpu/driver-core.rst | 4 | ||||
| -rw-r--r-- | Documentation/gpu/amdgpu/index.rst | 2 |
3 files changed, 26 insertions, 3 deletions
diff --git a/Documentation/gpu/amdgpu/amdgpu-glossary.rst b/Documentation/gpu/amdgpu/amdgpu-glossary.rst index 326896e9800d..00a47ebb0b0f 100644 --- a/Documentation/gpu/amdgpu/amdgpu-glossary.rst +++ b/Documentation/gpu/amdgpu/amdgpu-glossary.rst @@ -30,12 +30,35 @@ we have a dedicated glossary for Display Core at EOP End Of Pipe/Pipeline + GART + Graphics Address Remapping Table. This is the name we use for the GPUVM + page table used by the GPU kernel driver. It remaps system resources + (memory or MMIO space) into the GPU's address space so the GPU can access + them. The name GART harkens back to the days of AGP when the platform + provided an MMU that the GPU could use to get a contiguous view of + scattered pages for DMA. The MMU has since moved on to the GPU, but the + name stuck. + GC Graphics and Compute GMC Graphic Memory Controller + GPUVM + GPU Virtual Memory. This is the GPU's MMU. The GPU supports multiple + virtual address spaces that can be in flight at any given time. These + allow the GPU to remap VRAM and system resources into GPU virtual address + spaces for use by the GPU kernel driver and applications using the GPU. + These provide memory protection for different applications using the GPU. + + GTT + Graphics Translation Tables. This is a memory pool managed through TTM + which provides access to system resources (memory or MMIO space) for + use by the GPU. These addresses can be mapped into the "GART" GPUVM page + table for use by the kernel driver or into per process GPUVM page tables + for application usage. + IH Interrupt Handler diff --git a/Documentation/gpu/amdgpu/driver-core.rst b/Documentation/gpu/amdgpu/driver-core.rst index ebf5932845a9..467e6843aef6 100644 --- a/Documentation/gpu/amdgpu/driver-core.rst +++ b/Documentation/gpu/amdgpu/driver-core.rst @@ -148,10 +148,10 @@ PRIME Buffer Sharing MMU Notifier ============ -.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c +.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c :doc: MMU Notifier -.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c +.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c :internal: AMDGPU Virtual Memory diff --git a/Documentation/gpu/amdgpu/index.rst b/Documentation/gpu/amdgpu/index.rst index a24e1cfa7407..03c2966cae79 100644 --- a/Documentation/gpu/amdgpu/index.rst +++ b/Documentation/gpu/amdgpu/index.rst @@ -3,7 +3,7 @@ ========================== The drm/amdgpu driver supports all AMD Radeon GPUs based on the Graphics Core -Next (GCN) architecture. +Next (GCN), Radeon DNA (RDNA), and Compute DNA (CDNA) architectures. .. toctree:: |