diff options
| author | Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> | 2018-08-03 14:37:28 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-08-03 23:01:28 +0300 |
| commit | f3b98e3c4d2e16bb7c99fc75d652559bd591070f (patch) | |
| tree | 9604e2dfdc231303b63eae2fb2a3da71eb79a67a /drivers/media/platform/vsp1/vsp1_dl.h | |
| parent | 7d630c4924d82c4679e2df4bf55c2fd94e668e91 (diff) | |
| download | linux-f3b98e3c4d2e16bb7c99fc75d652559bd591070f.tar.xz | |
media: vsp1: Provide support for extended command pools
VSPD and VSP-DL devices can provide extended display lists supporting
extended command display list objects.
These extended commands require their own dma memory areas for a header
and body specific to the command type.
Implement a command pool to allocate all necessary memory in a single
DMA allocation to reduce pressure on the TLB, and provide convenient
re-usable command objects for the entities to utilise.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_dl.h')
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_dl.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_dl.h b/drivers/media/platform/vsp1/vsp1_dl.h index afefd5bfa136..125750dc8b5c 100644 --- a/drivers/media/platform/vsp1/vsp1_dl.h +++ b/drivers/media/platform/vsp1/vsp1_dl.h @@ -22,6 +22,7 @@ struct vsp1_dl_manager; /** * struct vsp1_dl_ext_cmd - Extended Display command + * @pool: pool to which this command belongs * @free: entry in the pool of free commands list * @opcode: command type opcode * @flags: flags used by the command @@ -32,6 +33,7 @@ struct vsp1_dl_manager; * @data_dma: DMA address for command-specific data */ struct vsp1_dl_ext_cmd { + struct vsp1_dl_cmd_pool *pool; struct list_head free; u8 opcode; @@ -58,6 +60,7 @@ struct vsp1_dl_body *vsp1_dlm_dl_body_get(struct vsp1_dl_manager *dlm); struct vsp1_dl_list *vsp1_dl_list_get(struct vsp1_dl_manager *dlm); void vsp1_dl_list_put(struct vsp1_dl_list *dl); struct vsp1_dl_body *vsp1_dl_list_get_body0(struct vsp1_dl_list *dl); +struct vsp1_dl_ext_cmd *vsp1_dl_get_pre_cmd(struct vsp1_dl_list *dl); void vsp1_dl_list_commit(struct vsp1_dl_list *dl, bool internal); struct vsp1_dl_body_pool * |