diff options
| author | Alex Elder <elder@linaro.org> | 2020-05-04 12:58:59 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-04 11:26:55 -0700 |
| commit | a0036bb413d5b28b5b7b3d217f52909511b7c8ae (patch) | |
| tree | b7a68dfcd7558ddfd6c9416c3af54457dbd3b257 /drivers/net/ipa/ipa.h | |
| parent | 3e313c3f5a36c7e8e6593ed2f6818795210347eb (diff) | |
net: ipa: define SMEM memory region for IPA
Arrange to use an item from SMEM memory for IPA. SMEM item number
497 is designated to be used by the IPA. Specify the item ID and
size of the region in platform configuration data. Allocate and get
a pointer to this region from ipa_mem_init(). The memory must be
mapped for access through an SMMU.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ipa/ipa.h')
| -rw-r--r-- | drivers/net/ipa/ipa.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ipa/ipa.h b/drivers/net/ipa/ipa.h index 32f6dfafdb05..b10a85392952 100644 --- a/drivers/net/ipa/ipa.h +++ b/drivers/net/ipa/ipa.h @@ -49,6 +49,8 @@ struct ipa_interrupt; * @mem: Array of IPA-local memory region descriptors * @imem_iova: I/O virtual address of IPA region in IMEM * @imem_size; Size of IMEM region + * @smem_iova: I/O virtual address of IPA region in SMEM + * @smem_size; Size of SMEM region * @zero_addr: DMA address of preallocated zero-filled memory * @zero_virt: Virtual address of preallocated zero-filled memory * @zero_size: Size (bytes) of preallocated zero-filled memory @@ -93,6 +95,9 @@ struct ipa { unsigned long imem_iova; size_t imem_size; + unsigned long smem_iova; + size_t smem_size; + dma_addr_t zero_addr; void *zero_virt; size_t zero_size; |