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qcacmn: Add HW, SW and nbuf prefetch support in Berryllium

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Add HW, SW and nbuf prefetch support in Berryllium, this will
ensure we have prefetched the HW desc, SW desc and nbuf by
the time we are in the 3rd iteration of the dp_rx_be_process
first loop.

CRs-Fixed: 3218647
Change-Id: I27d371c5d1c9a37d61e4fc00d5eb03609fad589c
This commit is contained in:
Tallapragada Kalyan
2022-03-08 16:49:58 +05:30
committed by Madan Koyyalamudi
parent 7c19bfc5eb
commit f7a1c7e0c7
5 changed files with 206 additions and 24 deletions
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60
hal/wifi3.0/hal_api.h
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@@ -3227,4 +3227,64 @@ void *hal_srng_dst_prefetch_next_cached_desc(hal_soc_handle_t hal_soc_hdl,
qdf_prefetch(last_prefetched_hw_desc);
return (void *)last_prefetched_hw_desc;
}
/**
* hal_srng_dst_prefetch_32_byte_desc() - function to prefetch a desc at
* 64 byte offset
* @hal_soc_hdl: HAL SOC handle
* @hal_ring_hdl: Destination ring pointer
* @num_valid: valid entries in the ring
*
* return: last prefetched destination ring descriptor
*/
static inline
void *hal_srng_dst_prefetch_32_byte_desc(hal_soc_handle_t hal_soc_hdl,
hal_ring_handle_t hal_ring_hdl,
uint16_t num_valid)
{
struct hal_srng *srng = (struct hal_srng *)hal_ring_hdl;
uint8_t *desc;
if (srng->u.dst_ring.tp == srng->u.dst_ring.cached_hp)
return NULL;
desc = (uint8_t *)&srng->ring_base_vaddr[srng->u.dst_ring.tp];
if ((uintptr_t)desc & 0x3f)
desc += srng->entry_size * sizeof(uint32_t);
else
desc += (srng->entry_size * sizeof(uint32_t)) * 2;
if (desc == ((uint8_t *)srng->ring_vaddr_end))
desc = (uint8_t *)&srng->ring_base_vaddr[0];
qdf_prefetch(desc);
return (void *)(desc + srng->entry_size * sizeof(uint32_t));
}
/**
* hal_srng_dst_prefetch_next_cached_desc() - function to prefetch next desc
* @hal_soc_hdl: HAL SOC handle
* @hal_ring_hdl: Destination ring pointer
* @last_prefetched_hw_desc: last prefetched HW descriptor
*
* return: next prefetched destination descriptor
*/
static inline
void *hal_srng_dst_get_next_32_byte_desc(hal_soc_handle_t hal_soc_hdl,
hal_ring_handle_t hal_ring_hdl,
uint8_t *last_prefetched_hw_desc)
{
struct hal_srng *srng = (struct hal_srng *)hal_ring_hdl;
if (srng->u.dst_ring.tp == srng->u.dst_ring.cached_hp)
return NULL;
last_prefetched_hw_desc += srng->entry_size * sizeof(uint32_t);
if (last_prefetched_hw_desc == ((uint8_t *)srng->ring_vaddr_end))
last_prefetched_hw_desc = (uint8_t *)&srng->ring_base_vaddr[0];
return (void *)last_prefetched_hw_desc;
}
#endif /* _HAL_APIH_ */