aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2022-12-09 12:08:12 +1000
committerDave Airlie <airlied@redhat.com>2022-12-09 12:08:13 +1000
commit9e5737bd0457955690d871b3f4fc66dea40ea141 (patch)
tree959c2e9be38afc13ec86af6ca702f7771683af72 /Documentation
parentf06a4da3adf252a6ecd37c4ea1c3540db0b27738 (diff)
parent4670ac706ff9b3d0adb766ef9e93cc36d9dda474 (diff)
downloadlinux-9e5737bd0457955690d871b3f4fc66dea40ea141.tar.gz
Merge tag 'amd-drm-next-6.2-2022-12-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.2-2022-12-02: amdgpu: - Fix CPU stalls when allocating large amounts of system memory - SR-IOV fixes - BACO fixes - Enable GC 11.0.4 - Enable PSP 13.0.11 - Enable SMU 13.0.11 - Enable NBIO 7.7.1 - Fix reported VCN capabilities for RDNA2 - Misc cleanups - PCI ref count fixes - DCN DPIA fixes - DCN 3.2.x fixes - Documentation updates - GC 11.x fixes - VCN RAS fixes - APU fix for passthrough - PSR fixes - GFX preemption support for gfx9 - SDMA fix for S0ix amdkfd: - Enable KFD support for GC 11.0.4 - Misc cleanups - Fix memory leak Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221202160659.5987-1-alexander.deucher@amd.com
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/gpu/amdgpu/amdgpu-glossary.rst23
-rw-r--r--Documentation/gpu/amdgpu/driver-core.rst4
-rw-r--r--Documentation/gpu/amdgpu/index.rst2
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::