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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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d01524d8ab
This commit adjusts the allocation and freeing of BM pools to support PPv2.2. This involves: - Checking that the number of buffer pointers is a multiple of 16, as required by the hardware. - Adjusting the size of the DMA coherent area allocated for buffer pointers. Indeed, PPv2.2 needs space for 2 pointers of 64-bits per buffer, as opposed to 2 pointers of 32-bits per buffer in PPv2.1. The size in bytes is now stored in a new field of the mvpp2_bm_pool structure. - On PPv2.2, getting the DMA address and cookie (used for the physical address) of each buffer requires reading the MVPP22_BM_ADDR_HIGH_ALLOC to get the high order bits of those addresses. A new utility function mvpp2_bm_bufs_get_addrs() is introduced to handle this. - On PPv2.2, releasing a buffer requires writing the high order 32 bits of the DMA address and cookie to MVPP22_BM_PHY_VIRT_HIGH_RLS_REG. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| mv643xx_eth.c | ||
| mvmdio.c | ||
| mvneta_bm.c | ||
| mvneta_bm.h | ||
| mvneta.c | ||
| mvpp2.c | ||
| pxa168_eth.c | ||
| skge.c | ||
| skge.h | ||
| sky2.c | ||
| sky2.h | ||