[PATCH v5 08/11] media: vsp1: Add support for extended display list headers
Kieran Bingham
kieran at bingham.xyz
Tue Jul 17 20:35:50 UTC 2018
From: Kieran Bingham <kieran.bingham+renesas at ideasonboard.com>
Extended display list headers allow pre and post command lists to be
executed by the VSP pipeline. This provides the base support for
features such as AUTO_FLD (for interlaced support) and AUTO_DISP (for
supporting continuous camera preview pipelines.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas at ideasonboard.com>
---
v2:
- remove __packed attributes
v5:
- Rename vsp1_dl_ext_header field names
- Rename @extended -> @extension
- Remove unnecessary VI6_DL_SWAP changes
- Rename @cmd_opcode -> @opcode
- Drop unused @data_size field
- Move iteration of WPF's inside vsp1_dlm_setup
- Rename vsp1_dl_ext_cmd_header -> vsp1_pre_ext_dl_body
- Rename vsp1_pre_ext_dl_body->cmd to vsp1_pre_ext_dl_body->opcode
- Rename vsp1_dl_ext_header->reserved0 to vsp1_dl_ext_header->padding
- vsp1_pre_ext_dl_body: Rename 'data' to 'address_set'
- vsp1_pre_ext_dl_body: Add struct documentation
- Document ordering of 16bit accesses for flags in vsp1_dl_ext_header
drivers/media/platform/vsp1/vsp1.h | 1 +-
drivers/media/platform/vsp1/vsp1_dl.c | 104 ++++++++++++++++++++++++-
drivers/media/platform/vsp1/vsp1_dl.h | 25 ++++++-
drivers/media/platform/vsp1/vsp1_drv.c | 4 +-
drivers/media/platform/vsp1/vsp1_regs.h | 2 +-
5 files changed, 132 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/vsp1/vsp1.h b/drivers/media/platform/vsp1/vsp1.h
index f0d21cc8e9ab..56c62122a81a 100644
--- a/drivers/media/platform/vsp1/vsp1.h
+++ b/drivers/media/platform/vsp1/vsp1.h
@@ -53,6 +53,7 @@ struct vsp1_uif;
#define VSP1_HAS_HGO (1 << 7)
#define VSP1_HAS_HGT (1 << 8)
#define VSP1_HAS_BRS (1 << 9)
+#define VSP1_HAS_EXT_DL (1 << 10)
struct vsp1_device_info {
u32 version;
diff --git a/drivers/media/platform/vsp1/vsp1_dl.c b/drivers/media/platform/vsp1/vsp1_dl.c
index 90e0a11c29b5..2fffe977aa35 100644
--- a/drivers/media/platform/vsp1/vsp1_dl.c
+++ b/drivers/media/platform/vsp1/vsp1_dl.c
@@ -22,6 +22,9 @@
#define VSP1_DLH_INT_ENABLE (1 << 1)
#define VSP1_DLH_AUTO_START (1 << 0)
+#define VSP1_DLH_EXT_PRE_CMD_EXEC (1 << 9)
+#define VSP1_DLH_EXT_POST_CMD_EXEC (1 << 8)
+
struct vsp1_dl_header_list {
u32 num_bytes;
u32 addr;
@@ -34,12 +37,59 @@ struct vsp1_dl_header {
u32 flags;
};
+/**
+ * struct vsp1_dl_ext_header - Extended display list header
+ * @padding: padding zero bytes for alignment
+ * @pre_ext_dl_num_cmd: number of pre-extended command bodies to parse
+ * @flags: enables or disables execution of the pre and post command
+ * @pre_ext_dl_plist: start address of pre-extended display list bodies
+ * @post_ext_dl_num_cmd: number of post-extended command bodies to parse
+ * @post_ext_dl_plist: start address of post-extended display list bodies
+ */
+struct vsp1_dl_ext_header {
+ u32 padding;
+
+ /*
+ * The datasheet represents flags as stored before pre_ext_dl_num_cmd,
+ * expecting 32-bit accesses. The flags are appropriate to the whole
+ * header, not just the pre_ext command, and thus warrant being
+ * separated out. Due to byte ordering, and representing as 16 bit
+ * values here, the flags must be positioned after the
+ * pre_ext_dl_num_cmd.
+ */
+ u16 pre_ext_dl_num_cmd;
+ u16 flags;
+ u32 pre_ext_dl_plist;
+
+ u32 post_ext_dl_num_cmd;
+ u32 post_ext_dl_plist;
+};
+
+struct vsp1_dl_header_extended {
+ struct vsp1_dl_header header;
+ struct vsp1_dl_ext_header ext;
+};
+
struct vsp1_dl_entry {
u32 addr;
u32 data;
};
/**
+ * struct vsp1_pre_ext_dl_body - Pre Extended Display List Body
+ * @opcode: Extended display list command operation code
+ * @flags: Pre-extended command flags. These are specific to each command
+ * @address_set: Source address set pointer. Must have 16 byte alignment
+ * @reserved: Zero bits for alignment.
+ */
+struct vsp1_pre_ext_dl_body {
+ u32 opcode;
+ u32 flags;
+ u32 address_set;
+ u32 reserved;
+};
+
+/**
* struct vsp1_dl_body - Display list body
* @list: entry in the display list list of bodies
* @free: entry in the pool free body list
@@ -95,9 +145,12 @@ struct vsp1_dl_body_pool {
* @list: entry in the display list manager lists
* @dlm: the display list manager
* @header: display list header
+ * @extension: extended display list header. NULL for normal lists
* @dma: DMA address for the header
* @body0: first display list body
* @bodies: list of extra display list bodies
+ * @pre_cmd: pre command to be issued through extended dl header
+ * @post_cmd: post command to be issued through extended dl header
* @has_chain: if true, indicates that there's a partition chain
* @chain: entry in the display list partition chain
* @internal: whether the display list is used for internal purpose
@@ -107,11 +160,15 @@ struct vsp1_dl_list {
struct vsp1_dl_manager *dlm;
struct vsp1_dl_header *header;
+ struct vsp1_dl_ext_header *extension;
dma_addr_t dma;
struct vsp1_dl_body *body0;
struct list_head bodies;
+ struct vsp1_dl_ext_cmd *pre_cmd;
+ struct vsp1_dl_ext_cmd *post_cmd;
+
bool has_chain;
struct list_head chain;
@@ -495,6 +552,14 @@ int vsp1_dl_list_add_chain(struct vsp1_dl_list *head,
return 0;
}
+static void vsp1_dl_ext_cmd_fill_header(struct vsp1_dl_ext_cmd *cmd)
+{
+ cmd->cmds[0].opcode = cmd->opcode;
+ cmd->cmds[0].flags = cmd->flags;
+ cmd->cmds[0].address_set = cmd->data_dma;
+ cmd->cmds[0].reserved = 0;
+}
+
static void vsp1_dl_list_fill_header(struct vsp1_dl_list *dl, bool is_last)
{
struct vsp1_dl_manager *dlm = dl->dlm;
@@ -547,6 +612,27 @@ static void vsp1_dl_list_fill_header(struct vsp1_dl_list *dl, bool is_last)
*/
dl->header->flags = VSP1_DLH_INT_ENABLE;
}
+
+ if (!dl->extension)
+ return;
+
+ dl->extension->flags = 0;
+
+ if (dl->pre_cmd) {
+ dl->extension->pre_ext_dl_plist = dl->pre_cmd->cmd_dma;
+ dl->extension->pre_ext_dl_num_cmd = dl->pre_cmd->num_cmds;
+ dl->extension->flags |= VSP1_DLH_EXT_PRE_CMD_EXEC;
+
+ vsp1_dl_ext_cmd_fill_header(dl->pre_cmd);
+ }
+
+ if (dl->post_cmd) {
+ dl->extension->post_ext_dl_plist = dl->post_cmd->cmd_dma;
+ dl->extension->post_ext_dl_num_cmd = dl->post_cmd->num_cmds;
+ dl->extension->flags |= VSP1_DLH_EXT_POST_CMD_EXEC;
+
+ vsp1_dl_ext_cmd_fill_header(dl->post_cmd);
+ }
}
static bool vsp1_dl_list_hw_update_pending(struct vsp1_dl_manager *dlm)
@@ -736,9 +822,16 @@ unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm)
/* Hardware Setup */
void vsp1_dlm_setup(struct vsp1_device *vsp1)
{
+ unsigned int i;
u32 ctrl = (256 << VI6_DL_CTRL_AR_WAIT_SHIFT)
| VI6_DL_CTRL_DC2 | VI6_DL_CTRL_DC1 | VI6_DL_CTRL_DC0
| VI6_DL_CTRL_DLE;
+ u32 ext_dl = (0x02 << VI6_DL_EXT_CTRL_POLINT_SHIFT) |
+ VI6_DL_EXT_CTRL_DLPRI | VI6_DL_EXT_CTRL_EXT;
+
+ if (vsp1_feature(vsp1, VSP1_HAS_EXT_DL))
+ for (i = 0; i < vsp1->info->wpf_count; ++i)
+ vsp1_write(vsp1, VI6_DL_EXT_CTRL(i), ext_dl);
vsp1_write(vsp1, VI6_DL_CTRL, ctrl);
vsp1_write(vsp1, VI6_DL_SWAP, VI6_DL_SWAP_LWS);
@@ -792,7 +885,11 @@ struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
* memory. An extra body is allocated on top of the prealloc to account
* for the cached body used by the vsp1_pipeline object.
*/
- header_size = ALIGN(sizeof(struct vsp1_dl_header), 8);
+ header_size = vsp1_feature(vsp1, VSP1_HAS_EXT_DL) ?
+ sizeof(struct vsp1_dl_header_extended) :
+ sizeof(struct vsp1_dl_header);
+
+ header_size = ALIGN(header_size, 8);
dlm->pool = vsp1_dl_body_pool_create(vsp1, prealloc + 1,
VSP1_DL_NUM_ENTRIES, header_size);
@@ -808,6 +905,11 @@ struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
return NULL;
}
+ /* The extended header immediately follows the header. */
+ if (vsp1_feature(vsp1, VSP1_HAS_EXT_DL))
+ dl->extension = (void *)dl->header
+ + sizeof(*dl->header);
+
list_add_tail(&dl->list, &dlm->free);
}
diff --git a/drivers/media/platform/vsp1/vsp1_dl.h b/drivers/media/platform/vsp1/vsp1_dl.h
index 7dba0469c92e..afefd5bfa136 100644
--- a/drivers/media/platform/vsp1/vsp1_dl.h
+++ b/drivers/media/platform/vsp1/vsp1_dl.h
@@ -20,6 +20,31 @@ struct vsp1_dl_manager;
#define VSP1_DL_FRAME_END_COMPLETED BIT(0)
#define VSP1_DL_FRAME_END_INTERNAL BIT(1)
+/**
+ * struct vsp1_dl_ext_cmd - Extended Display command
+ * @free: entry in the pool of free commands list
+ * @opcode: command type opcode
+ * @flags: flags used by the command
+ * @cmds: array of command bodies for this extended cmd
+ * @num_cmds: quantity of commands in @cmds array
+ * @cmd_dma: DMA address of the command body
+ * @data: memory allocation for command-specific data
+ * @data_dma: DMA address for command-specific data
+ */
+struct vsp1_dl_ext_cmd {
+ struct list_head free;
+
+ u8 opcode;
+ u32 flags;
+
+ struct vsp1_pre_ext_dl_body *cmds;
+ unsigned int num_cmds;
+ dma_addr_t cmd_dma;
+
+ void *data;
+ dma_addr_t data_dma;
+};
+
void vsp1_dlm_setup(struct vsp1_device *vsp1);
struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c
index 3367c2ba990d..b6619c9c18bb 100644
--- a/drivers/media/platform/vsp1/vsp1_drv.c
+++ b/drivers/media/platform/vsp1/vsp1_drv.c
@@ -754,7 +754,7 @@ static const struct vsp1_device_info vsp1_device_infos[] = {
.version = VI6_IP_VERSION_MODEL_VSPD_GEN3,
.model = "VSP2-D",
.gen = 3,
- .features = VSP1_HAS_BRU | VSP1_HAS_WPF_VFLIP,
+ .features = VSP1_HAS_BRU | VSP1_HAS_WPF_VFLIP | VSP1_HAS_EXT_DL,
.lif_count = 1,
.rpf_count = 5,
.uif_count = 1,
@@ -774,7 +774,7 @@ static const struct vsp1_device_info vsp1_device_infos[] = {
.version = VI6_IP_VERSION_MODEL_VSPDL_GEN3,
.model = "VSP2-DL",
.gen = 3,
- .features = VSP1_HAS_BRS | VSP1_HAS_BRU,
+ .features = VSP1_HAS_BRS | VSP1_HAS_BRU | VSP1_HAS_EXT_DL,
.lif_count = 2,
.rpf_count = 5,
.uif_count = 2,
diff --git a/drivers/media/platform/vsp1/vsp1_regs.h b/drivers/media/platform/vsp1/vsp1_regs.h
index 0d249ff9f564..5ea9f9070cf3 100644
--- a/drivers/media/platform/vsp1/vsp1_regs.h
+++ b/drivers/media/platform/vsp1/vsp1_regs.h
@@ -72,7 +72,7 @@
#define VI6_DL_SWAP_WDS (1 << 1)
#define VI6_DL_SWAP_BTS (1 << 0)
-#define VI6_DL_EXT_CTRL 0x011c
+#define VI6_DL_EXT_CTRL(n) (0x011c + (n) * 36)
#define VI6_DL_EXT_CTRL_NWE (1 << 16)
#define VI6_DL_EXT_CTRL_POLINT_MASK (0x3f << 8)
#define VI6_DL_EXT_CTRL_POLINT_SHIFT 8
--
git-series 0.9.1
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