diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2023-10-05 13:16:31 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-05 13:16:47 -0700 |
| commit | 2606cf059c56bfb86d5d6bd0f41bd7eedefc8b0a (patch) | |
| tree | 6bd918ad4fc55e677cc6ccb3212eab873c467c7f /drivers/firmware/arm_ffa/driver.c | |
| parent | 49e7265fd098fdade2bbdd9331e6b914cda7fa83 (diff) | |
| parent | f291209eca5eba0b4704fa0832af57b12dbc1a02 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
No conflicts (or adjacent changes of note).
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/firmware/arm_ffa/driver.c')
| -rw-r--r-- | drivers/firmware/arm_ffa/driver.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c index 2109cd178ff7..121f4fc903cd 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/drivers/firmware/arm_ffa/driver.c @@ -397,6 +397,19 @@ static u32 ffa_get_num_pages_sg(struct scatterlist *sg) return num_pages; } +static u8 ffa_memory_attributes_get(u32 func_id) +{ + /* + * For the memory lend or donate operation, if the receiver is a PE or + * a proxy endpoint, the owner/sender must not specify the attributes + */ + if (func_id == FFA_FN_NATIVE(MEM_LEND) || + func_id == FFA_MEM_LEND) + return 0; + + return FFA_MEM_NORMAL | FFA_MEM_WRITE_BACK | FFA_MEM_INNER_SHAREABLE; +} + static int ffa_setup_and_transmit(u32 func_id, void *buffer, u32 max_fragsize, struct ffa_mem_ops_args *args) @@ -413,8 +426,7 @@ ffa_setup_and_transmit(u32 func_id, void *buffer, u32 max_fragsize, mem_region->tag = args->tag; mem_region->flags = args->flags; mem_region->sender_id = drv_info->vm_id; - mem_region->attributes = FFA_MEM_NORMAL | FFA_MEM_WRITE_BACK | - FFA_MEM_INNER_SHAREABLE; + mem_region->attributes = ffa_memory_attributes_get(func_id); ep_mem_access = &mem_region->ep_mem_access[0]; for (idx = 0; idx < args->nattrs; idx++, ep_mem_access++) { |