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Message-Id: <9eabffddea3745ef74a21ea3f954e5c1342b124d.1520963956.git-series.kieran.bingham+renesas@ideasonboard.com>
Date: Tue, 13 Mar 2018 19:05:23 +0100
From: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-renesas-soc@...r.kernel.org
Cc: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 07/11] media: vsp1: Use header display lists for all WPF outputs linked to the DU
Header mode display lists are now supported on all WPF outputs. To
support extended headers and auto-fld capabilities for interlaced mode
handling only header mode display lists can be used.
Disable the headerless display list configuration, and remove the dead
code.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
---
drivers/media/platform/vsp1/vsp1_dl.c | 107 ++++++---------------------
1 file changed, 27 insertions(+), 80 deletions(-)
diff --git a/drivers/media/platform/vsp1/vsp1_dl.c b/drivers/media/platform/vsp1/vsp1_dl.c
index 680eedb6fc9f..5f5706f8a84c 100644
--- a/drivers/media/platform/vsp1/vsp1_dl.c
+++ b/drivers/media/platform/vsp1/vsp1_dl.c
@@ -98,7 +98,7 @@ struct vsp1_dl_body_pool {
* struct vsp1_dl_list - Display list
* @list: entry in the display list manager lists
* @dlm: the display list manager
- * @header: display list header, NULL for headerless lists
+ * @header: display list header
* @dma: DMA address for the header
* @body0: first display list body
* @bodies: list of extra display list bodies
@@ -119,15 +119,9 @@ struct vsp1_dl_list {
struct list_head chain;
};
-enum vsp1_dl_mode {
- VSP1_DL_MODE_HEADER,
- VSP1_DL_MODE_HEADERLESS,
-};
-
/**
* struct vsp1_dl_manager - Display List manager
* @index: index of the related WPF
- * @mode: display list operation mode (header or headerless)
* @singleshot: execute the display list in single-shot mode
* @vsp1: the VSP1 device
* @lock: protects the free, active, queued, pending and gc_bodies lists
@@ -139,7 +133,6 @@ enum vsp1_dl_mode {
*/
struct vsp1_dl_manager {
unsigned int index;
- enum vsp1_dl_mode mode;
bool singleshot;
struct vsp1_device *vsp1;
@@ -320,6 +313,7 @@ static struct vsp1_dl_list *vsp1_dl_list_alloc(struct vsp1_dl_manager *dlm,
struct vsp1_dl_body_pool *pool)
{
struct vsp1_dl_list *dl;
+ size_t header_offset;
dl = kzalloc(sizeof(*dl), GFP_KERNEL);
if (!dl)
@@ -332,16 +326,15 @@ static struct vsp1_dl_list *vsp1_dl_list_alloc(struct vsp1_dl_manager *dlm,
dl->body0 = vsp1_dl_body_get(pool);
if (!dl->body0)
return NULL;
- if (dlm->mode == VSP1_DL_MODE_HEADER) {
- size_t header_offset = dl->body0->max_entries
- * sizeof(*dl->body0->entries);
- dl->header = ((void *)dl->body0->entries) + header_offset;
- dl->dma = dl->body0->dma + header_offset;
+ header_offset = dl->body0->max_entries
+ * sizeof(*dl->body0->entries);
- memset(dl->header, 0, sizeof(*dl->header));
- dl->header->lists[0].addr = dl->body0->dma;
- }
+ dl->header = ((void *)dl->body0->entries) + header_offset;
+ dl->dma = dl->body0->dma + header_offset;
+
+ memset(dl->header, 0, sizeof(*dl->header));
+ dl->header->lists[0].addr = dl->body0->dma;
return dl;
}
@@ -473,16 +466,9 @@ struct vsp1_dl_body *vsp1_dl_list_get_body0(struct vsp1_dl_list *dl)
*
* The reference must be explicitly released by a call to vsp1_dl_body_put()
* when the body isn't needed anymore.
- *
- * Additional bodies are only usable for display lists in header mode.
- * Attempting to add a body to a header-less display list will return an error.
*/
int vsp1_dl_list_add_body(struct vsp1_dl_list *dl, struct vsp1_dl_body *dlb)
{
- /* Multi-body lists are only available in header mode. */
- if (dl->dlm->mode != VSP1_DL_MODE_HEADER)
- return -EINVAL;
-
refcount_inc(&dlb->refcnt);
list_add_tail(&dlb->list, &dl->bodies);
@@ -503,17 +489,10 @@ int vsp1_dl_list_add_body(struct vsp1_dl_list *dl, struct vsp1_dl_body *dlb)
* Adding a display list to a chain passes ownership of the display list to
* the head display list item. The chain is released when the head dl item is
* put back with __vsp1_dl_list_put().
- *
- * Chained display lists are only usable in header mode. Attempts to add a
- * display list to a chain in header-less mode will return an error.
*/
int vsp1_dl_list_add_chain(struct vsp1_dl_list *head,
struct vsp1_dl_list *dl)
{
- /* Chained lists are only available in header mode. */
- if (head->dlm->mode != VSP1_DL_MODE_HEADER)
- return -EINVAL;
-
head->has_chain = true;
list_add_tail(&dl->chain, &head->chain);
return 0;
@@ -581,17 +560,10 @@ static bool vsp1_dl_list_hw_update_pending(struct vsp1_dl_manager *dlm)
return false;
/*
- * Check whether the VSP1 has taken the update. In headerless mode the
- * hardware indicates this by clearing the UPD bit in the DL_BODY_SIZE
- * register, and in header mode by clearing the UPDHDR bit in the CMD
- * register.
+ * Check whether the VSP1 has taken the update. In header mode by
+ * clearing the UPDHDR bit in the CMD register.
*/
- if (dlm->mode == VSP1_DL_MODE_HEADERLESS)
- return !!(vsp1_read(vsp1, VI6_DL_BODY_SIZE)
- & VI6_DL_BODY_SIZE_UPD);
- else
- return !!(vsp1_read(vsp1, VI6_CMD(dlm->index))
- & VI6_CMD_UPDHDR);
+ return !!(vsp1_read(vsp1, VI6_CMD(dlm->index)) & VI6_CMD_UPDHDR);
}
static void vsp1_dl_list_hw_enqueue(struct vsp1_dl_list *dl)
@@ -599,26 +571,14 @@ static void vsp1_dl_list_hw_enqueue(struct vsp1_dl_list *dl)
struct vsp1_dl_manager *dlm = dl->dlm;
struct vsp1_device *vsp1 = dlm->vsp1;
- if (dlm->mode == VSP1_DL_MODE_HEADERLESS) {
- /*
- * In headerless mode, program the hardware directly with the
- * display list body address and size and set the UPD bit. The
- * bit will be cleared by the hardware when the display list
- * processing starts.
- */
- vsp1_write(vsp1, VI6_DL_HDR_ADDR(0), dl->body0->dma);
- vsp1_write(vsp1, VI6_DL_BODY_SIZE, VI6_DL_BODY_SIZE_UPD |
- (dl->body0->num_entries * sizeof(*dl->header->lists)));
- } else {
- /*
- * In header mode, program the display list header address. If
- * the hardware is idle (single-shot mode or first frame in
- * continuous mode) it will then be started independently. If
- * the hardware is operating, the VI6_DL_HDR_REF_ADDR register
- * will be updated with the display list address.
- */
- vsp1_write(vsp1, VI6_DL_HDR_ADDR(dlm->index), dl->dma);
- }
+ /*
+ * In header mode, program the display list header address. If
+ * the hardware is idle (single-shot mode or first frame in
+ * continuous mode) it will then be started independently. If
+ * the hardware is operating, the VI6_DL_HDR_REF_ADDR register
+ * will be updated with the display list address.
+ */
+ vsp1_write(vsp1, VI6_DL_HDR_ADDR(dlm->index), dl->dma);
}
static void vsp1_dl_list_commit_continuous(struct vsp1_dl_list *dl)
@@ -668,15 +628,13 @@ void vsp1_dl_list_commit(struct vsp1_dl_list *dl)
struct vsp1_dl_list *dl_next;
unsigned long flags;
- if (dlm->mode == VSP1_DL_MODE_HEADER) {
- /* Fill the header for the head and chained display lists. */
- vsp1_dl_list_fill_header(dl, list_empty(&dl->chain));
+ /* Fill the header for the head and chained display lists. */
+ vsp1_dl_list_fill_header(dl, list_empty(&dl->chain));
- list_for_each_entry(dl_next, &dl->chain, chain) {
- bool last = list_is_last(&dl_next->chain, &dl->chain);
+ list_for_each_entry(dl_next, &dl->chain, chain) {
+ bool last = list_is_last(&dl_next->chain, &dl->chain);
- vsp1_dl_list_fill_header(dl_next, last);
- }
+ vsp1_dl_list_fill_header(dl_next, last);
}
spin_lock_irqsave(&dlm->lock, flags);
@@ -763,13 +721,6 @@ void vsp1_dlm_setup(struct vsp1_device *vsp1)
| VI6_DL_CTRL_DC2 | VI6_DL_CTRL_DC1 | VI6_DL_CTRL_DC0
| VI6_DL_CTRL_DLE;
- /*
- * The DRM pipeline operates with display lists in Continuous Frame
- * Mode, all other pipelines use manual start.
- */
- if (vsp1->drm)
- ctrl |= VI6_DL_CTRL_CFM0 | VI6_DL_CTRL_NH0;
-
vsp1_write(vsp1, VI6_DL_CTRL, ctrl);
vsp1_write(vsp1, VI6_DL_SWAP, VI6_DL_SWAP_LWS);
}
@@ -804,8 +755,6 @@ struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
return NULL;
dlm->index = index;
- dlm->mode = index == 0 && !vsp1->info->uapi
- ? VSP1_DL_MODE_HEADERLESS : VSP1_DL_MODE_HEADER;
dlm->singleshot = vsp1->info->uapi;
dlm->vsp1 = vsp1;
@@ -814,13 +763,11 @@ struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
/*
* Initialize the display list body and allocate DMA memory for the body
- * and the optional header. Both are allocated together to avoid memory
+ * and the header. Both are allocated together to avoid memory
* fragmentation, with the header located right after the body in
* memory.
*/
- header_size = dlm->mode == VSP1_DL_MODE_HEADER
- ? ALIGN(sizeof(struct vsp1_dl_header), 8)
- : 0;
+ header_size = ALIGN(sizeof(struct vsp1_dl_header), 8);
dlm->pool = vsp1_dl_body_pool_create(vsp1, prealloc,
VSP1_DL_NUM_ENTRIES, header_size);
--
git-series 0.9.1
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