> -----Original Message----- > From: eagost...@nvidia.com <eagost...@nvidia.com> > Sent: Thursday, January 27, 2022 11:47 > To: dev@dpdk.org > Cc: Elena Agostini <eagost...@nvidia.com> > Subject: [PATCH v4 1/2] gpudev: expose GPU memory to CPU > > From: Elena Agostini <eagost...@nvidia.com> > > Enable the possibility to expose a GPU memory area and make it > accessible from the CPU. > > GPU memory has to be allocated via rte_gpu_mem_alloc(). > > This patch allows the gpudev library to map (and unmap), > through the GPU driver, a chunk of GPU memory and to return > a memory pointer usable by the CPU to access the GPU memory area. > > Signed-off-by: Elena Agostini <eagost...@nvidia.com> > --- > doc/guides/prog_guide/gpudev.rst | 9 +++++ > drivers/gpu/cuda/cuda.c | 2 ++ > lib/gpudev/gpudev.c | 61 ++++++++++++++++++++++++++++++++ > lib/gpudev/gpudev_driver.h | 6 ++++ > lib/gpudev/rte_gpudev.h | 49 +++++++++++++++++++++++++ > lib/gpudev/version.map | 2 ++ > 6 files changed, 129 insertions(+) >
> +__rte_experimental > +void *rte_gpu_mem_cpu_map(int16_t dev_id, size_t size, void *ptr); How about add some direction words like "to/from" to make it straightforward ? For this: rte_gpu_mem_map_to_cpu ? > +__rte_experimental > +int rte_gpu_mem_cpu_unmap(int16_t dev_id, void *ptr); > + And rte_gpu_mem_unmap_to_cpu ? > }; > -- > 2.17.1
