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soc: ti: k3-navss-ringacc: Remove unused ring modes 

With AM64x supporting only K3_NAV_RINGACC_RING_MODE_RING or the exposed
ring mode, all other K3 SoCs have also been moved to this common
baseline. Therefore drop other modes such as
K3_NAV_RINGACC_RING_MODE_MESSAGE (and proxy) to save on SPL footprint.

There is a saving of ~800 bytes with this change for am65x_evm_r5_defconfig.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
This commit is contained in:
Vignesh Raghavendra 2021-05-10 20:06:04 +05:30 committed by Lokesh Vutla
parent c409b4932d
commit f1e97c7058
2 changed files with 8 additions and 310 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

311
drivers/soc/ti/k3-navss-ringacc.c
View File

@ -91,36 +91,6 @@ struct k3_nav_ring_fifo_regs {
u32 peek_tail_data[128]; /* Ring Peek Tail Entry Data Regs */
};
/**
* struct k3_ringacc_proxy_gcfg_regs - RA Proxy Global Config MMIO Region
*/
struct k3_ringacc_proxy_gcfg_regs {
u32 revision; /* Revision Register */
u32 config; /* Config Register */
};
#define K3_RINGACC_PROXY_CFG_THREADS_MASK GENMASK(15, 0)
/**
* struct k3_ringacc_proxy_target_regs - RA Proxy Datapath MMIO Region
*/
struct k3_ringacc_proxy_target_regs {
u32 control; /* Proxy Control Register */
u32 status; /* Proxy Status Register */
u8 resv_512[504];
u32 data[128]; /* Proxy Data Register */
};
#define K3_RINGACC_PROXY_TARGET_STEP 0x1000
#define K3_RINGACC_PROXY_NOT_USED (-1)
enum k3_ringacc_proxy_access_mode {
PROXY_ACCESS_MODE_HEAD = 0,
PROXY_ACCESS_MODE_TAIL = 1,
PROXY_ACCESS_MODE_PEEK_HEAD = 2,
PROXY_ACCESS_MODE_PEEK_TAIL = 3,
};
#define KNAV_RINGACC_FIFO_WINDOW_SIZE_BYTES (512U)
#define KNAV_RINGACC_FIFO_REGS_STEP 0x1000
#define KNAV_RINGACC_MAX_DB_RING_CNT (127U)
@ -156,7 +126,6 @@ struct k3_nav_ring_state {
*
* @rt - Ring control/status registers
* @fifos - Ring queues registers
* @proxy - Ring Proxy Datapath registers
* @ring_mem_dma - Ring buffer dma address
* @ring_mem_virt - Ring buffer virt address
* @ops - Ring operations
@ -167,12 +136,10 @@ struct k3_nav_ring_state {
* @ring_id - Ring Id
* @parent - Pointer on struct @k3_nav_ringacc
* @use_count - Use count for shared rings
* @proxy_id - RA Ring Proxy Id (only if @K3_NAV_RINGACC_RING_USE_PROXY)
*/
struct k3_nav_ring {
struct k3_nav_ring_rt_regs __iomem *rt;
struct k3_nav_ring_fifo_regs __iomem *fifos;
struct k3_ringacc_proxy_target_regs __iomem *proxy;
dma_addr_t ring_mem_dma;
void *ring_mem_virt;
struct k3_nav_ring_ops *ops;
@ -187,7 +154,6 @@ struct k3_nav_ring {
u32 ring_id;
struct k3_nav_ringacc *parent;
u32 use_count;
int proxy_id;
};
struct k3_nav_ringacc_ops {
@ -198,8 +164,6 @@ struct k3_nav_ringacc_ops {
* struct k3_nav_ringacc - Rings accelerator descriptor
*
* @dev - pointer on RA device
* @proxy_gcfg - RA proxy global config registers
* @proxy_target_base - RA proxy datapath region
* @num_rings - number of ring in RA
* @rm_gp_range - general purpose rings range from tisci
* @dma_ring_reset_quirk - DMA reset w/a enable
@ -214,14 +178,11 @@ struct k3_nav_ringacc_ops {
*/
struct k3_nav_ringacc {
struct udevice *dev;
struct k3_ringacc_proxy_gcfg_regs __iomem *proxy_gcfg;
void __iomem *proxy_target_base;
u32 num_rings; /* number of rings in Ringacc module */
unsigned long *rings_inuse;
struct ti_sci_resource *rm_gp_range;
bool dma_ring_reset_quirk;
u32 num_proxies;
unsigned long *proxy_inuse;
struct k3_nav_ring *rings;
struct list_head list;
@ -249,12 +210,6 @@ static void k3_nav_ringacc_ring_update_occ(struct k3_nav_ring *ring)
ring->state.tdown_complete = !!(val & K3_DMARING_RING_RT_OCC_TDOWN_COMPLETE);
}
static long k3_nav_ringacc_ring_get_fifo_pos(struct k3_nav_ring *ring)
{
return KNAV_RINGACC_FIFO_WINDOW_SIZE_BYTES -
(4 << ring->elm_size);
}
static void *k3_nav_ringacc_get_elm_addr(struct k3_nav_ring *ring, u32 idx)
{
return (idx * (4 << ring->elm_size) + ring->ring_mem_virt);
@ -279,44 +234,14 @@ static struct k3_nav_ring_ops k3_dmaring_reverse_ring_ops = {
.pop_head = k3_dmaring_ring_reverse_pop_mem,
};
static int k3_nav_ringacc_ring_push_io(struct k3_nav_ring *ring, void *elem);
static int k3_nav_ringacc_ring_pop_io(struct k3_nav_ring *ring, void *elem);
static int k3_nav_ringacc_ring_push_head_io(struct k3_nav_ring *ring,
void *elem);
static int k3_nav_ringacc_ring_pop_tail_io(struct k3_nav_ring *ring,
void *elem);
static struct k3_nav_ring_ops k3_nav_mode_msg_ops = {
.push_tail = k3_nav_ringacc_ring_push_io,
.push_head = k3_nav_ringacc_ring_push_head_io,
.pop_tail = k3_nav_ringacc_ring_pop_tail_io,
.pop_head = k3_nav_ringacc_ring_pop_io,
};
static int k3_ringacc_ring_push_head_proxy(struct k3_nav_ring *ring,
void *elem);
static int k3_ringacc_ring_push_tail_proxy(struct k3_nav_ring *ring,
void *elem);
static int k3_ringacc_ring_pop_head_proxy(struct k3_nav_ring *ring, void *elem);
static int k3_ringacc_ring_pop_tail_proxy(struct k3_nav_ring *ring, void *elem);
static struct k3_nav_ring_ops k3_nav_mode_proxy_ops = {
.push_tail = k3_ringacc_ring_push_tail_proxy,
.push_head = k3_ringacc_ring_push_head_proxy,
.pop_tail = k3_ringacc_ring_pop_tail_proxy,
.pop_head = k3_ringacc_ring_pop_head_proxy,
};
struct udevice *k3_nav_ringacc_get_dev(struct k3_nav_ringacc *ringacc)
{
return ringacc->dev;
}
struct k3_nav_ring *k3_nav_ringacc_request_ring(struct k3_nav_ringacc *ringacc,
int id, u32 flags)
int id)
{
int proxy_id = K3_RINGACC_PROXY_NOT_USED;
if (id == K3_NAV_RINGACC_RING_ID_ANY) {
/* Request for any general purpose ring */
struct ti_sci_resource_desc *gp_rings =
@ -338,24 +263,10 @@ struct k3_nav_ring *k3_nav_ringacc_request_ring(struct k3_nav_ringacc *ringacc,
else if (ringacc->rings[id].flags & K3_NAV_RING_FLAG_SHARED)
goto out;
if (flags & K3_NAV_RINGACC_RING_USE_PROXY) {
proxy_id = find_next_zero_bit(ringacc->proxy_inuse,
ringacc->num_proxies, 0);
if (proxy_id == ringacc->num_proxies)
goto error;
}
if (!try_module_get(ringacc->dev->driver->owner))
goto error;
if (proxy_id != K3_RINGACC_PROXY_NOT_USED) {
set_bit(proxy_id, ringacc->proxy_inuse);
ringacc->rings[id].proxy_id = proxy_id;
pr_debug("Giving ring#%d proxy#%d\n",
id, proxy_id);
} else {
pr_debug("Giving ring#%d\n", id);
}
pr_debug("Giving ring#%d\n", id);
set_bit(id, ringacc->rings_inuse);
out:
@ -401,11 +312,11 @@ int k3_nav_ringacc_request_rings_pair(struct k3_nav_ringacc *ringacc,
return k3_dmaring_ring_request_rings_pair(ringacc, fwd_id, compl_id,
fwd_ring, compl_ring);
*fwd_ring = k3_nav_ringacc_request_ring(ringacc, fwd_id, 0);
*fwd_ring = k3_nav_ringacc_request_ring(ringacc, fwd_id);
if (!(*fwd_ring))
return -ENODEV;
*compl_ring = k3_nav_ringacc_request_ring(ringacc, compl_id, 0);
*compl_ring = k3_nav_ringacc_request_ring(ringacc, compl_id);
if (!(*compl_ring)) {
k3_nav_ringacc_ring_free(*fwd_ring);
ret = -ENODEV;
@ -581,11 +492,6 @@ int k3_nav_ringacc_ring_free(struct k3_nav_ring *ring)
ring->ring_mem_virt, ring->ring_mem_dma);
ring->flags &= ~KNAV_RING_FLAG_BUSY;
ring->ops = NULL;
if (ring->proxy_id != K3_RINGACC_PROXY_NOT_USED) {
clear_bit(ring->proxy_id, ringacc->proxy_inuse);
ring->proxy = NULL;
ring->proxy_id = K3_RINGACC_PROXY_NOT_USED;
}
no_init:
clear_bit(ring->ring_id, ringacc->rings_inuse);
@ -698,7 +604,6 @@ err_free_mem:
ring->ring_mem_dma);
err_free_ops:
ring->ops = NULL;
ring->proxy = NULL;
return ret;
}
@ -728,32 +633,14 @@ int k3_nav_ringacc_ring_cfg(struct k3_nav_ring *ring,
ring->mode = cfg->mode;
memset(&ring->state, 0, sizeof(ring->state));
if (ring->proxy_id != K3_RINGACC_PROXY_NOT_USED)
ring->proxy = ringacc->proxy_target_base +
ring->proxy_id * K3_RINGACC_PROXY_TARGET_STEP;
switch (ring->mode) {
case K3_NAV_RINGACC_RING_MODE_RING:
ring->ops = &k3_nav_mode_ring_ops;
break;
case K3_NAV_RINGACC_RING_MODE_QM:
/*
* In Queue mode elm_size can be 8 only and each operation
* uses 2 element slots
*/
if (cfg->elm_size != K3_NAV_RINGACC_RING_ELSIZE_8 ||
cfg->size % 2)
goto err_free_proxy;
case K3_NAV_RINGACC_RING_MODE_MESSAGE:
if (ring->proxy)
ring->ops = &k3_nav_mode_proxy_ops;
else
ring->ops = &k3_nav_mode_msg_ops;
break;
default:
ring->ops = NULL;
ret = -EINVAL;
goto err_free_proxy;
goto err_free_ops;
};
ring->ring_mem_virt =
@ -784,8 +671,6 @@ err_free_mem:
ring->ring_mem_dma);
err_free_ops:
ring->ops = NULL;
err_free_proxy:
ring->proxy = NULL;
return ret;
}
@ -830,159 +715,6 @@ enum k3_ringacc_access_mode {
K3_RINGACC_ACCESS_MODE_PEEK_TAIL,
};
static int k3_ringacc_ring_cfg_proxy(struct k3_nav_ring *ring,
enum k3_ringacc_proxy_access_mode mode)
{
u32 val;
val = ring->ring_id;
val |= mode << 16;
val |= ring->elm_size << 24;
ringacc_writel(val, &ring->proxy->control);
return 0;
}
static int k3_nav_ringacc_ring_access_proxy(
struct k3_nav_ring *ring, void *elem,
enum k3_ringacc_access_mode access_mode)
{
void __iomem *ptr;
ptr = (void __iomem *)&ring->proxy->data;
switch (access_mode) {
case K3_RINGACC_ACCESS_MODE_PUSH_HEAD:
case K3_RINGACC_ACCESS_MODE_POP_HEAD:
k3_ringacc_ring_cfg_proxy(ring, PROXY_ACCESS_MODE_HEAD);
break;
case K3_RINGACC_ACCESS_MODE_PUSH_TAIL:
case K3_RINGACC_ACCESS_MODE_POP_TAIL:
k3_ringacc_ring_cfg_proxy(ring, PROXY_ACCESS_MODE_TAIL);
break;
default:
return -EINVAL;
}
ptr += k3_nav_ringacc_ring_get_fifo_pos(ring);
switch (access_mode) {
case K3_RINGACC_ACCESS_MODE_POP_HEAD:
case K3_RINGACC_ACCESS_MODE_POP_TAIL:
pr_debug("proxy:memcpy_fromio(x): --> ptr(%p), mode:%d\n",
ptr, access_mode);
memcpy_fromio(elem, ptr, (4 << ring->elm_size));
ring->state.occ--;
break;
case K3_RINGACC_ACCESS_MODE_PUSH_TAIL:
case K3_RINGACC_ACCESS_MODE_PUSH_HEAD:
pr_debug("proxy:memcpy_toio(x): --> ptr(%p), mode:%d\n",
ptr, access_mode);
memcpy_toio(ptr, elem, (4 << ring->elm_size));
ring->state.free--;
break;
default:
return -EINVAL;
}
pr_debug("proxy: free%d occ%d\n",
ring->state.free, ring->state.occ);
return 0;
}
static int k3_ringacc_ring_push_head_proxy(struct k3_nav_ring *ring, void *elem)
{
return k3_nav_ringacc_ring_access_proxy(
ring, elem, K3_RINGACC_ACCESS_MODE_PUSH_HEAD);
}
static int k3_ringacc_ring_push_tail_proxy(struct k3_nav_ring *ring, void *elem)
{
return k3_nav_ringacc_ring_access_proxy(
ring, elem, K3_RINGACC_ACCESS_MODE_PUSH_TAIL);
}
static int k3_ringacc_ring_pop_head_proxy(struct k3_nav_ring *ring, void *elem)
{
return k3_nav_ringacc_ring_access_proxy(
ring, elem, K3_RINGACC_ACCESS_MODE_POP_HEAD);
}
static int k3_ringacc_ring_pop_tail_proxy(struct k3_nav_ring *ring, void *elem)
{
return k3_nav_ringacc_ring_access_proxy(
ring, elem, K3_RINGACC_ACCESS_MODE_POP_HEAD);
}
static int k3_nav_ringacc_ring_access_io(
struct k3_nav_ring *ring, void *elem,
enum k3_ringacc_access_mode access_mode)
{
void __iomem *ptr;
switch (access_mode) {
case K3_RINGACC_ACCESS_MODE_PUSH_HEAD:
case K3_RINGACC_ACCESS_MODE_POP_HEAD:
ptr = (void __iomem *)&ring->fifos->head_data;
break;
case K3_RINGACC_ACCESS_MODE_PUSH_TAIL:
case K3_RINGACC_ACCESS_MODE_POP_TAIL:
ptr = (void __iomem *)&ring->fifos->tail_data;
break;
default:
return -EINVAL;
}
ptr += k3_nav_ringacc_ring_get_fifo_pos(ring);
switch (access_mode) {
case K3_RINGACC_ACCESS_MODE_POP_HEAD:
case K3_RINGACC_ACCESS_MODE_POP_TAIL:
pr_debug("memcpy_fromio(x): --> ptr(%p), mode:%d\n",
ptr, access_mode);
memcpy_fromio(elem, ptr, (4 << ring->elm_size));
ring->state.occ--;
break;
case K3_RINGACC_ACCESS_MODE_PUSH_TAIL:
case K3_RINGACC_ACCESS_MODE_PUSH_HEAD:
pr_debug("memcpy_toio(x): --> ptr(%p), mode:%d\n",
ptr, access_mode);
memcpy_toio(ptr, elem, (4 << ring->elm_size));
ring->state.free--;
break;
default:
return -EINVAL;
}
pr_debug("free%d index%d occ%d index%d\n",
ring->state.free, ring->state.windex, ring->state.occ, ring->state.rindex);
return 0;
}
static int k3_nav_ringacc_ring_push_head_io(struct k3_nav_ring *ring,
void *elem)
{
return k3_nav_ringacc_ring_access_io(
ring, elem, K3_RINGACC_ACCESS_MODE_PUSH_HEAD);
}
static int k3_nav_ringacc_ring_push_io(struct k3_nav_ring *ring, void *elem)
{
return k3_nav_ringacc_ring_access_io(
ring, elem, K3_RINGACC_ACCESS_MODE_PUSH_TAIL);
}
static int k3_nav_ringacc_ring_pop_io(struct k3_nav_ring *ring, void *elem)
{
return k3_nav_ringacc_ring_access_io(
ring, elem, K3_RINGACC_ACCESS_MODE_POP_HEAD);
}
static int k3_nav_ringacc_ring_pop_tail_io(struct k3_nav_ring *ring, void *elem)
{
return k3_nav_ringacc_ring_access_io(
ring, elem, K3_RINGACC_ACCESS_MODE_POP_HEAD);
}
static int k3_dmaring_ring_fwd_pop_mem(struct k3_nav_ring *ring, void *elem)
{
void *elem_ptr;
@ -1219,7 +951,7 @@ static int k3_nav_ringacc_probe_dt(struct k3_nav_ringacc *ringacc)
static int k3_nav_ringacc_init(struct udevice *dev, struct k3_nav_ringacc *ringacc)
{
void __iomem *base_fifo, *base_rt;
void __iomem *base_rt;
int ret, i;
ret = k3_nav_ringacc_probe_dt(ringacc);
@ -1231,24 +963,6 @@ static int k3_nav_ringacc_init(struct udevice *dev, struct k3_nav_ringacc *ringa
if (IS_ERR(base_rt))
return PTR_ERR(base_rt);
base_fifo = (uint32_t *)devfdt_get_addr_name(dev, "fifos");
pr_debug("fifos %p\n", base_fifo);
if (IS_ERR(base_fifo))
return PTR_ERR(base_fifo);
ringacc->proxy_gcfg = (struct k3_ringacc_proxy_gcfg_regs __iomem *)
devfdt_get_addr_name(dev, "proxy_gcfg");
if (IS_ERR(ringacc->proxy_gcfg))
return PTR_ERR(ringacc->proxy_gcfg);
ringacc->proxy_target_base =
(struct k3_ringacc_proxy_gcfg_regs __iomem *)
devfdt_get_addr_name(dev, "proxy_target");
if (IS_ERR(ringacc->proxy_target_base))
return PTR_ERR(ringacc->proxy_target_base);
ringacc->num_proxies = ringacc_readl(&ringacc->proxy_gcfg->config) &
K3_RINGACC_PROXY_CFG_THREADS_MASK;
ringacc->rings = devm_kzalloc(dev,
sizeof(*ringacc->rings) *
ringacc->num_rings,
@ -1256,21 +970,15 @@ static int k3_nav_ringacc_init(struct udevice *dev, struct k3_nav_ringacc *ringa
ringacc->rings_inuse = devm_kcalloc(dev,
BITS_TO_LONGS(ringacc->num_rings),
sizeof(unsigned long), GFP_KERNEL);
ringacc->proxy_inuse = devm_kcalloc(dev,
BITS_TO_LONGS(ringacc->num_proxies),
sizeof(unsigned long), GFP_KERNEL);
if (!ringacc->rings || !ringacc->rings_inuse || !ringacc->proxy_inuse)
if (!ringacc->rings || !ringacc->rings_inuse)
return -ENOMEM;
for (i = 0; i < ringacc->num_rings; i++) {
ringacc->rings[i].rt = base_rt +
KNAV_RINGACC_RT_REGS_STEP * i;
ringacc->rings[i].fifos = base_fifo +
KNAV_RINGACC_FIFO_REGS_STEP * i;
ringacc->rings[i].parent = ringacc;
ringacc->rings[i].ring_id = i;
ringacc->rings[i].proxy_id = K3_RINGACC_PROXY_NOT_USED;
}
dev_set_drvdata(dev, ringacc);
@ -1285,9 +993,6 @@ static int k3_nav_ringacc_init(struct udevice *dev, struct k3_nav_ringacc *ringa
ringacc->tisci_dev_id);
dev_info(dev, "dma-ring-reset-quirk: %s\n",
ringacc->dma_ring_reset_quirk ? "enabled" : "disabled");
dev_info(dev, "RA Proxy rev. %08x, num_proxies:%u\n",
ringacc_readl(&ringacc->proxy_gcfg->revision),
ringacc->num_proxies);
return 0;
}
@ -1330,14 +1035,12 @@ struct k3_nav_ringacc *k3_ringacc_dmarings_init(struct udevice *dev,
ring->rt = base_rt + K3_DMARING_RING_RT_REGS_STEP * i;
ring->parent = ringacc;
ring->ring_id = i;
ring->proxy_id = K3_RINGACC_PROXY_NOT_USED;
ring = &ringacc->rings[ringacc->num_rings + i];
ring->rt = base_rt + K3_DMARING_RING_RT_REGS_STEP * i +
K3_DMARING_RING_RT_REGS_REVERSE_OFS;
ring->parent = ringacc;
ring->ring_id = i;
ring->proxy_id = K3_RINGACC_PROXY_NOT_USED;
ring->flags = K3_NAV_RING_FLAG_REVERSE;
}

7
include/linux/soc/ti/k3-navss-ringacc.h
View File

@ -83,22 +83,17 @@ struct k3_nav_ring_cfg {
};
#define K3_NAV_RINGACC_RING_ID_ANY (-1)
#define K3_NAV_RINGACC_RING_USE_PROXY BIT(1)
/**
* k3_nav_ringacc_request_ring - request ring from ringacc
* @ringacc: pointer on ringacc
* @id: ring id or K3_NAV_RINGACC_RING_ID_ANY for any general purpose ring
* @flags:
* @K3_NAV_RINGACC_RING_USE_PROXY: if set - proxy will be allocated and
* used to access ring memory. Sopported only for rings in
* Message/Credentials/Queue mode.
*
* Returns pointer on the Ring - struct k3_nav_ring
* or NULL in case of failure.
*/
struct k3_nav_ring *k3_nav_ringacc_request_ring(struct k3_nav_ringacc *ringacc,
int id, u32 flags);
int id);
int k3_nav_ringacc_request_rings_pair(struct k3_nav_ringacc *ringacc,
int fwd_id, int compl_id,