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linux-zen-desktop/drivers/net/wireless/ath/ath11k/hal.c

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Initial commit
2023-08-30 17:31:07 +02:00
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/dma-mapping.h>
#include "hal_tx.h"
#include "debug.h"
#include "hal_desc.h"
#include "hif.h"
static const struct hal_srng_config hw_srng_config_template[] = {
/* TODO: max_rings can populated by querying HW capabilities */
{ /* REO_DST */
.start_ring_id = HAL_SRNG_RING_ID_REO2SW1,
.max_rings = 4,
.entry_size = sizeof(struct hal_reo_dest_ring) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_DST,
.max_size = HAL_REO_REO2SW1_RING_BASE_MSB_RING_SIZE,
},
{ /* REO_EXCEPTION */
/* Designating REO2TCL ring as exception ring. This ring is
* similar to other REO2SW rings though it is named as REO2TCL.
* Any of theREO2SW rings can be used as exception ring.
*/
.start_ring_id = HAL_SRNG_RING_ID_REO2TCL,
.max_rings = 1,
.entry_size = sizeof(struct hal_reo_dest_ring) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_DST,
.max_size = HAL_REO_REO2TCL_RING_BASE_MSB_RING_SIZE,
},
{ /* REO_REINJECT */
.start_ring_id = HAL_SRNG_RING_ID_SW2REO,
.max_rings = 1,
.entry_size = sizeof(struct hal_reo_entrance_ring) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_REO_SW2REO_RING_BASE_MSB_RING_SIZE,
},
{ /* REO_CMD */
.start_ring_id = HAL_SRNG_RING_ID_REO_CMD,
.max_rings = 1,
.entry_size = (sizeof(struct hal_tlv_hdr) +
sizeof(struct hal_reo_get_queue_stats)) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_REO_CMD_RING_BASE_MSB_RING_SIZE,
},
{ /* REO_STATUS */
.start_ring_id = HAL_SRNG_RING_ID_REO_STATUS,
.max_rings = 1,
.entry_size = (sizeof(struct hal_tlv_hdr) +
sizeof(struct hal_reo_get_queue_stats_status)) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_DST,
.max_size = HAL_REO_STATUS_RING_BASE_MSB_RING_SIZE,
},
{ /* TCL_DATA */
.start_ring_id = HAL_SRNG_RING_ID_SW2TCL1,
.max_rings = 3,
.entry_size = (sizeof(struct hal_tlv_hdr) +
sizeof(struct hal_tcl_data_cmd)) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_SW2TCL1_RING_BASE_MSB_RING_SIZE,
},
{ /* TCL_CMD */
.start_ring_id = HAL_SRNG_RING_ID_SW2TCL_CMD,
.max_rings = 1,
.entry_size = (sizeof(struct hal_tlv_hdr) +
sizeof(struct hal_tcl_gse_cmd)) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_SW2TCL1_CMD_RING_BASE_MSB_RING_SIZE,
},
{ /* TCL_STATUS */
.start_ring_id = HAL_SRNG_RING_ID_TCL_STATUS,
.max_rings = 1,
.entry_size = (sizeof(struct hal_tlv_hdr) +
sizeof(struct hal_tcl_status_ring)) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_DST,
.max_size = HAL_TCL_STATUS_RING_BASE_MSB_RING_SIZE,
},
{ /* CE_SRC */
.start_ring_id = HAL_SRNG_RING_ID_CE0_SRC,
.max_rings = 12,
.entry_size = sizeof(struct hal_ce_srng_src_desc) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_CE_SRC_RING_BASE_MSB_RING_SIZE,
},
{ /* CE_DST */
.start_ring_id = HAL_SRNG_RING_ID_CE0_DST,
.max_rings = 12,
.entry_size = sizeof(struct hal_ce_srng_dest_desc) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_CE_DST_RING_BASE_MSB_RING_SIZE,
},
{ /* CE_DST_STATUS */
.start_ring_id = HAL_SRNG_RING_ID_CE0_DST_STATUS,
.max_rings = 12,
.entry_size = sizeof(struct hal_ce_srng_dst_status_desc) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_DST,
.max_size = HAL_CE_DST_STATUS_RING_BASE_MSB_RING_SIZE,
},
{ /* WBM_IDLE_LINK */
.start_ring_id = HAL_SRNG_RING_ID_WBM_IDLE_LINK,
.max_rings = 1,
.entry_size = sizeof(struct hal_wbm_link_desc) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_WBM_IDLE_LINK_RING_BASE_MSB_RING_SIZE,
},
{ /* SW2WBM_RELEASE */
.start_ring_id = HAL_SRNG_RING_ID_WBM_SW_RELEASE,
.max_rings = 1,
.entry_size = sizeof(struct hal_wbm_release_ring) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_SW2WBM_RELEASE_RING_BASE_MSB_RING_SIZE,
},
{ /* WBM2SW_RELEASE */
.start_ring_id = HAL_SRNG_RING_ID_WBM2SW0_RELEASE,
.max_rings = 5,
.entry_size = sizeof(struct hal_wbm_release_ring) >> 2,
.lmac_ring = false,
.ring_dir = HAL_SRNG_DIR_DST,
.max_size = HAL_WBM2SW_RELEASE_RING_BASE_MSB_RING_SIZE,
},
{ /* RXDMA_BUF */
.start_ring_id = HAL_SRNG_RING_ID_WMAC1_SW2RXDMA0_BUF,
.max_rings = 2,
.entry_size = sizeof(struct hal_wbm_buffer_ring) >> 2,
.lmac_ring = true,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_RXDMA_RING_MAX_SIZE,
},
{ /* RXDMA_DST */
.start_ring_id = HAL_SRNG_RING_ID_WMAC1_RXDMA2SW0,
.max_rings = 1,
.entry_size = sizeof(struct hal_reo_entrance_ring) >> 2,
.lmac_ring = true,
.ring_dir = HAL_SRNG_DIR_DST,
.max_size = HAL_RXDMA_RING_MAX_SIZE,
},
{ /* RXDMA_MONITOR_BUF */
.start_ring_id = HAL_SRNG_RING_ID_WMAC1_SW2RXDMA2_BUF,
.max_rings = 1,
.entry_size = sizeof(struct hal_wbm_buffer_ring) >> 2,
.lmac_ring = true,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_RXDMA_RING_MAX_SIZE,
},
{ /* RXDMA_MONITOR_STATUS */
.start_ring_id = HAL_SRNG_RING_ID_WMAC1_SW2RXDMA1_STATBUF,
.max_rings = 1,
.entry_size = sizeof(struct hal_wbm_buffer_ring) >> 2,
.lmac_ring = true,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_RXDMA_RING_MAX_SIZE,
},
{ /* RXDMA_MONITOR_DST */
.start_ring_id = HAL_SRNG_RING_ID_WMAC1_RXDMA2SW1,
.max_rings = 1,
.entry_size = sizeof(struct hal_reo_entrance_ring) >> 2,
.lmac_ring = true,
.ring_dir = HAL_SRNG_DIR_DST,
.max_size = HAL_RXDMA_RING_MAX_SIZE,
},
{ /* RXDMA_MONITOR_DESC */
.start_ring_id = HAL_SRNG_RING_ID_WMAC1_SW2RXDMA1_DESC,
.max_rings = 1,
.entry_size = sizeof(struct hal_wbm_buffer_ring) >> 2,
.lmac_ring = true,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_RXDMA_RING_MAX_SIZE,
},
{ /* RXDMA DIR BUF */
.start_ring_id = HAL_SRNG_RING_ID_RXDMA_DIR_BUF,
.max_rings = 1,
.entry_size = 8 >> 2, /* TODO: Define the struct */
.lmac_ring = true,
.ring_dir = HAL_SRNG_DIR_SRC,
.max_size = HAL_RXDMA_RING_MAX_SIZE,
},
};
static int ath11k_hal_alloc_cont_rdp(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
size_t size;
size = sizeof(u32) * HAL_SRNG_RING_ID_MAX;
hal->rdp.vaddr = dma_alloc_coherent(ab->dev, size, &hal->rdp.paddr,
GFP_KERNEL);
if (!hal->rdp.vaddr)
return -ENOMEM;
return 0;
}
static void ath11k_hal_free_cont_rdp(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
size_t size;
if (!hal->rdp.vaddr)
return;
size = sizeof(u32) * HAL_SRNG_RING_ID_MAX;
dma_free_coherent(ab->dev, size,
hal->rdp.vaddr, hal->rdp.paddr);
hal->rdp.vaddr = NULL;
}
static int ath11k_hal_alloc_cont_wrp(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
size_t size;
size = sizeof(u32) * HAL_SRNG_NUM_LMAC_RINGS;
hal->wrp.vaddr = dma_alloc_coherent(ab->dev, size, &hal->wrp.paddr,
GFP_KERNEL);
if (!hal->wrp.vaddr)
return -ENOMEM;
return 0;
}
static void ath11k_hal_free_cont_wrp(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
size_t size;
if (!hal->wrp.vaddr)
return;
size = sizeof(u32) * HAL_SRNG_NUM_LMAC_RINGS;
dma_free_coherent(ab->dev, size,
hal->wrp.vaddr, hal->wrp.paddr);
hal->wrp.vaddr = NULL;
}
static void ath11k_hal_ce_dst_setup(struct ath11k_base *ab,
struct hal_srng *srng, int ring_num)
{
struct hal_srng_config *srng_config = &ab->hal.srng_config[HAL_CE_DST];
u32 addr;
u32 val;
addr = HAL_CE_DST_RING_CTRL +
srng_config->reg_start[HAL_SRNG_REG_GRP_R0] +
ring_num * srng_config->reg_size[HAL_SRNG_REG_GRP_R0];
val = ath11k_hif_read32(ab, addr);
val &= ~HAL_CE_DST_R0_DEST_CTRL_MAX_LEN;
val |= FIELD_PREP(HAL_CE_DST_R0_DEST_CTRL_MAX_LEN,
srng->u.dst_ring.max_buffer_length);
ath11k_hif_write32(ab, addr, val);
}
static void ath11k_hal_srng_dst_hw_init(struct ath11k_base *ab,
struct hal_srng *srng)
{
struct ath11k_hal *hal = &ab->hal;
u32 val;
u64 hp_addr;
u32 reg_base;
reg_base = srng->hwreg_base[HAL_SRNG_REG_GRP_R0];
if (srng->flags & HAL_SRNG_FLAGS_MSI_INTR) {
ath11k_hif_write32(ab, reg_base +
HAL_REO1_RING_MSI1_BASE_LSB_OFFSET(ab),
srng->msi_addr);
val = FIELD_PREP(HAL_REO1_RING_MSI1_BASE_MSB_ADDR,
((u64)srng->msi_addr >>
HAL_ADDR_MSB_REG_SHIFT)) |
HAL_REO1_RING_MSI1_BASE_MSB_MSI1_ENABLE;
ath11k_hif_write32(ab, reg_base +
HAL_REO1_RING_MSI1_BASE_MSB_OFFSET(ab), val);
ath11k_hif_write32(ab,
reg_base + HAL_REO1_RING_MSI1_DATA_OFFSET(ab),
srng->msi_data);
}
ath11k_hif_write32(ab, reg_base, srng->ring_base_paddr);
val = FIELD_PREP(HAL_REO1_RING_BASE_MSB_RING_BASE_ADDR_MSB,
((u64)srng->ring_base_paddr >>
HAL_ADDR_MSB_REG_SHIFT)) |
FIELD_PREP(HAL_REO1_RING_BASE_MSB_RING_SIZE,
(srng->entry_size * srng->num_entries));
ath11k_hif_write32(ab, reg_base + HAL_REO1_RING_BASE_MSB_OFFSET(ab), val);
val = FIELD_PREP(HAL_REO1_RING_ID_RING_ID, srng->ring_id) |
FIELD_PREP(HAL_REO1_RING_ID_ENTRY_SIZE, srng->entry_size);
ath11k_hif_write32(ab, reg_base + HAL_REO1_RING_ID_OFFSET(ab), val);
/* interrupt setup */
val = FIELD_PREP(HAL_REO1_RING_PRDR_INT_SETUP_INTR_TMR_THOLD,
(srng->intr_timer_thres_us >> 3));
val |= FIELD_PREP(HAL_REO1_RING_PRDR_INT_SETUP_BATCH_COUNTER_THOLD,
(srng->intr_batch_cntr_thres_entries *
srng->entry_size));
ath11k_hif_write32(ab,
reg_base + HAL_REO1_RING_PRODUCER_INT_SETUP_OFFSET(ab),
val);
hp_addr = hal->rdp.paddr +
((unsigned long)srng->u.dst_ring.hp_addr -
(unsigned long)hal->rdp.vaddr);
ath11k_hif_write32(ab, reg_base + HAL_REO1_RING_HP_ADDR_LSB_OFFSET(ab),
hp_addr & HAL_ADDR_LSB_REG_MASK);
ath11k_hif_write32(ab, reg_base + HAL_REO1_RING_HP_ADDR_MSB_OFFSET(ab),
hp_addr >> HAL_ADDR_MSB_REG_SHIFT);
/* Initialize head and tail pointers to indicate ring is empty */
reg_base = srng->hwreg_base[HAL_SRNG_REG_GRP_R2];
ath11k_hif_write32(ab, reg_base, 0);
ath11k_hif_write32(ab, reg_base + HAL_REO1_RING_TP_OFFSET(ab), 0);
*srng->u.dst_ring.hp_addr = 0;
reg_base = srng->hwreg_base[HAL_SRNG_REG_GRP_R0];
val = 0;
if (srng->flags & HAL_SRNG_FLAGS_DATA_TLV_SWAP)
val |= HAL_REO1_RING_MISC_DATA_TLV_SWAP;
if (srng->flags & HAL_SRNG_FLAGS_RING_PTR_SWAP)
val |= HAL_REO1_RING_MISC_HOST_FW_SWAP;
if (srng->flags & HAL_SRNG_FLAGS_MSI_SWAP)
val |= HAL_REO1_RING_MISC_MSI_SWAP;
val |= HAL_REO1_RING_MISC_SRNG_ENABLE;
ath11k_hif_write32(ab, reg_base + HAL_REO1_RING_MISC_OFFSET(ab), val);
}
static void ath11k_hal_srng_src_hw_init(struct ath11k_base *ab,
struct hal_srng *srng)
{
struct ath11k_hal *hal = &ab->hal;
u32 val;
u64 tp_addr;
u32 reg_base;
reg_base = srng->hwreg_base[HAL_SRNG_REG_GRP_R0];
if (srng->flags & HAL_SRNG_FLAGS_MSI_INTR) {
ath11k_hif_write32(ab, reg_base +
HAL_TCL1_RING_MSI1_BASE_LSB_OFFSET(ab),
srng->msi_addr);
val = FIELD_PREP(HAL_TCL1_RING_MSI1_BASE_MSB_ADDR,
((u64)srng->msi_addr >>
HAL_ADDR_MSB_REG_SHIFT)) |
HAL_TCL1_RING_MSI1_BASE_MSB_MSI1_ENABLE;
ath11k_hif_write32(ab, reg_base +
HAL_TCL1_RING_MSI1_BASE_MSB_OFFSET(ab),
val);
ath11k_hif_write32(ab, reg_base +
HAL_TCL1_RING_MSI1_DATA_OFFSET(ab),
srng->msi_data);
}
ath11k_hif_write32(ab, reg_base, srng->ring_base_paddr);
val = FIELD_PREP(HAL_TCL1_RING_BASE_MSB_RING_BASE_ADDR_MSB,
((u64)srng->ring_base_paddr >>
HAL_ADDR_MSB_REG_SHIFT)) |
FIELD_PREP(HAL_TCL1_RING_BASE_MSB_RING_SIZE,
(srng->entry_size * srng->num_entries));
ath11k_hif_write32(ab, reg_base + HAL_TCL1_RING_BASE_MSB_OFFSET(ab), val);
val = FIELD_PREP(HAL_REO1_RING_ID_ENTRY_SIZE, srng->entry_size);
ath11k_hif_write32(ab, reg_base + HAL_TCL1_RING_ID_OFFSET(ab), val);
if (srng->ring_id == HAL_SRNG_RING_ID_WBM_IDLE_LINK) {
ath11k_hif_write32(ab, reg_base, (u32)srng->ring_base_paddr);
val = FIELD_PREP(HAL_TCL1_RING_BASE_MSB_RING_BASE_ADDR_MSB,
((u64)srng->ring_base_paddr >>
HAL_ADDR_MSB_REG_SHIFT)) |
FIELD_PREP(HAL_TCL1_RING_BASE_MSB_RING_SIZE,
(srng->entry_size * srng->num_entries));
ath11k_hif_write32(ab, reg_base + HAL_TCL1_RING_BASE_MSB_OFFSET(ab), val);
}
/* interrupt setup */
/* NOTE: IPQ8074 v2 requires the interrupt timer threshold in the
* unit of 8 usecs instead of 1 usec (as required by v1).
*/
val = FIELD_PREP(HAL_TCL1_RING_CONSR_INT_SETUP_IX0_INTR_TMR_THOLD,
srng->intr_timer_thres_us);
val |= FIELD_PREP(HAL_TCL1_RING_CONSR_INT_SETUP_IX0_BATCH_COUNTER_THOLD,
(srng->intr_batch_cntr_thres_entries *
srng->entry_size));
ath11k_hif_write32(ab,
reg_base + HAL_TCL1_RING_CONSR_INT_SETUP_IX0_OFFSET(ab),
val);
val = 0;
if (srng->flags & HAL_SRNG_FLAGS_LOW_THRESH_INTR_EN) {
val |= FIELD_PREP(HAL_TCL1_RING_CONSR_INT_SETUP_IX1_LOW_THOLD,
srng->u.src_ring.low_threshold);
}
ath11k_hif_write32(ab,
reg_base + HAL_TCL1_RING_CONSR_INT_SETUP_IX1_OFFSET(ab),
val);
if (srng->ring_id != HAL_SRNG_RING_ID_WBM_IDLE_LINK) {
tp_addr = hal->rdp.paddr +
((unsigned long)srng->u.src_ring.tp_addr -
(unsigned long)hal->rdp.vaddr);
ath11k_hif_write32(ab,
reg_base + HAL_TCL1_RING_TP_ADDR_LSB_OFFSET(ab),
tp_addr & HAL_ADDR_LSB_REG_MASK);
ath11k_hif_write32(ab,
reg_base + HAL_TCL1_RING_TP_ADDR_MSB_OFFSET(ab),
tp_addr >> HAL_ADDR_MSB_REG_SHIFT);
}
/* Initialize head and tail pointers to indicate ring is empty */
reg_base = srng->hwreg_base[HAL_SRNG_REG_GRP_R2];
ath11k_hif_write32(ab, reg_base, 0);
ath11k_hif_write32(ab, reg_base + HAL_TCL1_RING_TP_OFFSET, 0);
*srng->u.src_ring.tp_addr = 0;
reg_base = srng->hwreg_base[HAL_SRNG_REG_GRP_R0];
val = 0;
if (srng->flags & HAL_SRNG_FLAGS_DATA_TLV_SWAP)
val |= HAL_TCL1_RING_MISC_DATA_TLV_SWAP;
if (srng->flags & HAL_SRNG_FLAGS_RING_PTR_SWAP)
val |= HAL_TCL1_RING_MISC_HOST_FW_SWAP;
if (srng->flags & HAL_SRNG_FLAGS_MSI_SWAP)
val |= HAL_TCL1_RING_MISC_MSI_SWAP;
/* Loop count is not used for SRC rings */
val |= HAL_TCL1_RING_MISC_MSI_LOOPCNT_DISABLE;
val |= HAL_TCL1_RING_MISC_SRNG_ENABLE;
ath11k_hif_write32(ab, reg_base + HAL_TCL1_RING_MISC_OFFSET(ab), val);
}
static void ath11k_hal_srng_hw_init(struct ath11k_base *ab,
struct hal_srng *srng)
{
if (srng->ring_dir == HAL_SRNG_DIR_SRC)
ath11k_hal_srng_src_hw_init(ab, srng);
else
ath11k_hal_srng_dst_hw_init(ab, srng);
}
static int ath11k_hal_srng_get_ring_id(struct ath11k_base *ab,
enum hal_ring_type type,
int ring_num, int mac_id)
{
struct hal_srng_config *srng_config = &ab->hal.srng_config[type];
int ring_id;
if (ring_num >= srng_config->max_rings) {
ath11k_warn(ab, "invalid ring number :%d\n", ring_num);
return -EINVAL;
}
ring_id = srng_config->start_ring_id + ring_num;
if (srng_config->lmac_ring)
ring_id += mac_id * HAL_SRNG_RINGS_PER_LMAC;
if (WARN_ON(ring_id >= HAL_SRNG_RING_ID_MAX))
return -EINVAL;
return ring_id;
}
int ath11k_hal_srng_get_entrysize(struct ath11k_base *ab, u32 ring_type)
{
struct hal_srng_config *srng_config;
if (WARN_ON(ring_type >= HAL_MAX_RING_TYPES))
return -EINVAL;
srng_config = &ab->hal.srng_config[ring_type];
return (srng_config->entry_size << 2);
}
int ath11k_hal_srng_get_max_entries(struct ath11k_base *ab, u32 ring_type)
{
struct hal_srng_config *srng_config;
if (WARN_ON(ring_type >= HAL_MAX_RING_TYPES))
return -EINVAL;
srng_config = &ab->hal.srng_config[ring_type];
return (srng_config->max_size / srng_config->entry_size);
}
void ath11k_hal_srng_get_params(struct ath11k_base *ab, struct hal_srng *srng,
struct hal_srng_params *params)
{
params->ring_base_paddr = srng->ring_base_paddr;
params->ring_base_vaddr = srng->ring_base_vaddr;
params->num_entries = srng->num_entries;
params->intr_timer_thres_us = srng->intr_timer_thres_us;
params->intr_batch_cntr_thres_entries =
srng->intr_batch_cntr_thres_entries;
params->low_threshold = srng->u.src_ring.low_threshold;
params->msi_addr = srng->msi_addr;
params->msi_data = srng->msi_data;
params->flags = srng->flags;
}
dma_addr_t ath11k_hal_srng_get_hp_addr(struct ath11k_base *ab,
struct hal_srng *srng)
{
if (!(srng->flags & HAL_SRNG_FLAGS_LMAC_RING))
return 0;
if (srng->ring_dir == HAL_SRNG_DIR_SRC)
return ab->hal.wrp.paddr +
((unsigned long)srng->u.src_ring.hp_addr -
(unsigned long)ab->hal.wrp.vaddr);
else
return ab->hal.rdp.paddr +
((unsigned long)srng->u.dst_ring.hp_addr -
(unsigned long)ab->hal.rdp.vaddr);
}
dma_addr_t ath11k_hal_srng_get_tp_addr(struct ath11k_base *ab,
struct hal_srng *srng)
{
if (!(srng->flags & HAL_SRNG_FLAGS_LMAC_RING))
return 0;
if (srng->ring_dir == HAL_SRNG_DIR_SRC)
return ab->hal.rdp.paddr +
((unsigned long)srng->u.src_ring.tp_addr -
(unsigned long)ab->hal.rdp.vaddr);
else
return ab->hal.wrp.paddr +
((unsigned long)srng->u.dst_ring.tp_addr -
(unsigned long)ab->hal.wrp.vaddr);
}
u32 ath11k_hal_ce_get_desc_size(enum hal_ce_desc type)
{
switch (type) {
case HAL_CE_DESC_SRC:
return sizeof(struct hal_ce_srng_src_desc);
case HAL_CE_DESC_DST:
return sizeof(struct hal_ce_srng_dest_desc);
case HAL_CE_DESC_DST_STATUS:
return sizeof(struct hal_ce_srng_dst_status_desc);
}
return 0;
}
void ath11k_hal_ce_src_set_desc(void *buf, dma_addr_t paddr, u32 len, u32 id,
u8 byte_swap_data)
{
struct hal_ce_srng_src_desc *desc = (struct hal_ce_srng_src_desc *)buf;
desc->buffer_addr_low = paddr & HAL_ADDR_LSB_REG_MASK;
desc->buffer_addr_info =
FIELD_PREP(HAL_CE_SRC_DESC_ADDR_INFO_ADDR_HI,
((u64)paddr >> HAL_ADDR_MSB_REG_SHIFT)) |
FIELD_PREP(HAL_CE_SRC_DESC_ADDR_INFO_BYTE_SWAP,
byte_swap_data) |
FIELD_PREP(HAL_CE_SRC_DESC_ADDR_INFO_GATHER, 0) |
FIELD_PREP(HAL_CE_SRC_DESC_ADDR_INFO_LEN, len);
desc->meta_info = FIELD_PREP(HAL_CE_SRC_DESC_META_INFO_DATA, id);
}
void ath11k_hal_ce_dst_set_desc(void *buf, dma_addr_t paddr)
{
struct hal_ce_srng_dest_desc *desc =
(struct hal_ce_srng_dest_desc *)buf;
desc->buffer_addr_low = paddr & HAL_ADDR_LSB_REG_MASK;
desc->buffer_addr_info =
FIELD_PREP(HAL_CE_DEST_DESC_ADDR_INFO_ADDR_HI,
((u64)paddr >> HAL_ADDR_MSB_REG_SHIFT));
}
u32 ath11k_hal_ce_dst_status_get_length(void *buf)
{
struct hal_ce_srng_dst_status_desc *desc =
(struct hal_ce_srng_dst_status_desc *)buf;
u32 len;
len = FIELD_GET(HAL_CE_DST_STATUS_DESC_FLAGS_LEN, desc->flags);
desc->flags &= ~HAL_CE_DST_STATUS_DESC_FLAGS_LEN;
return len;
}
void ath11k_hal_set_link_desc_addr(struct hal_wbm_link_desc *desc, u32 cookie,
dma_addr_t paddr)
{
desc->buf_addr_info.info0 = FIELD_PREP(BUFFER_ADDR_INFO0_ADDR,
(paddr & HAL_ADDR_LSB_REG_MASK));
desc->buf_addr_info.info1 = FIELD_PREP(BUFFER_ADDR_INFO1_ADDR,
((u64)paddr >> HAL_ADDR_MSB_REG_SHIFT)) |
FIELD_PREP(BUFFER_ADDR_INFO1_RET_BUF_MGR, 1) |
FIELD_PREP(BUFFER_ADDR_INFO1_SW_COOKIE, cookie);
}
u32 *ath11k_hal_srng_dst_peek(struct ath11k_base *ab, struct hal_srng *srng)
{
lockdep_assert_held(&srng->lock);
if (srng->u.dst_ring.tp != srng->u.dst_ring.cached_hp)
return (srng->ring_base_vaddr + srng->u.dst_ring.tp);
return NULL;
}
static void ath11k_hal_srng_prefetch_desc(struct ath11k_base *ab,
struct hal_srng *srng)
{
u32 *desc;
/* prefetch only if desc is available */
desc = ath11k_hal_srng_dst_peek(ab, srng);
if (likely(desc)) {
dma_sync_single_for_cpu(ab->dev, virt_to_phys(desc),
(srng->entry_size * sizeof(u32)),
DMA_FROM_DEVICE);
prefetch(desc);
}
}
u32 *ath11k_hal_srng_dst_get_next_entry(struct ath11k_base *ab,
struct hal_srng *srng)
{
u32 *desc;
lockdep_assert_held(&srng->lock);
if (srng->u.dst_ring.tp == srng->u.dst_ring.cached_hp)
return NULL;
desc = srng->ring_base_vaddr + srng->u.dst_ring.tp;
srng->u.dst_ring.tp += srng->entry_size;
/* wrap around to start of ring*/
if (srng->u.dst_ring.tp == srng->ring_size)
srng->u.dst_ring.tp = 0;
/* Try to prefetch the next descriptor in the ring */
if (srng->flags & HAL_SRNG_FLAGS_CACHED)
ath11k_hal_srng_prefetch_desc(ab, srng);
return desc;
}
int ath11k_hal_srng_dst_num_free(struct ath11k_base *ab, struct hal_srng *srng,
bool sync_hw_ptr)
{
u32 tp, hp;
lockdep_assert_held(&srng->lock);
tp = srng->u.dst_ring.tp;
if (sync_hw_ptr) {
hp = *srng->u.dst_ring.hp_addr;
srng->u.dst_ring.cached_hp = hp;
} else {
hp = srng->u.dst_ring.cached_hp;
}
if (hp >= tp)
return (hp - tp) / srng->entry_size;
else
return (srng->ring_size - tp + hp) / srng->entry_size;
}
/* Returns number of available entries in src ring */
int ath11k_hal_srng_src_num_free(struct ath11k_base *ab, struct hal_srng *srng,
bool sync_hw_ptr)
{
u32 tp, hp;
lockdep_assert_held(&srng->lock);
hp = srng->u.src_ring.hp;
if (sync_hw_ptr) {
tp = *srng->u.src_ring.tp_addr;
srng->u.src_ring.cached_tp = tp;
} else {
tp = srng->u.src_ring.cached_tp;
}
if (tp > hp)
return ((tp - hp) / srng->entry_size) - 1;
else
return ((srng->ring_size - hp + tp) / srng->entry_size) - 1;
}
u32 *ath11k_hal_srng_src_get_next_entry(struct ath11k_base *ab,
struct hal_srng *srng)
{
u32 *desc;
u32 next_hp;
lockdep_assert_held(&srng->lock);
/* TODO: Using % is expensive, but we have to do this since size of some
* SRNG rings is not power of 2 (due to descriptor sizes). Need to see
* if separate function is defined for rings having power of 2 ring size
* (TCL2SW, REO2SW, SW2RXDMA and CE rings) so that we can avoid the
* overhead of % by using mask (with &).
*/
next_hp = (srng->u.src_ring.hp + srng->entry_size) % srng->ring_size;
if (next_hp == srng->u.src_ring.cached_tp)
return NULL;
desc = srng->ring_base_vaddr + srng->u.src_ring.hp;
srng->u.src_ring.hp = next_hp;
/* TODO: Reap functionality is not used by all rings. If particular
* ring does not use reap functionality, we need not update reap_hp
* with next_hp pointer. Need to make sure a separate function is used
* before doing any optimization by removing below code updating
* reap_hp.
*/
srng->u.src_ring.reap_hp = next_hp;
return desc;
}
u32 *ath11k_hal_srng_src_reap_next(struct ath11k_base *ab,
struct hal_srng *srng)
{
u32 *desc;
u32 next_reap_hp;
lockdep_assert_held(&srng->lock);
next_reap_hp = (srng->u.src_ring.reap_hp + srng->entry_size) %
srng->ring_size;
if (next_reap_hp == srng->u.src_ring.cached_tp)
return NULL;
desc = srng->ring_base_vaddr + next_reap_hp;
srng->u.src_ring.reap_hp = next_reap_hp;
return desc;
}
u32 *ath11k_hal_srng_src_get_next_reaped(struct ath11k_base *ab,
struct hal_srng *srng)
{
u32 *desc;
lockdep_assert_held(&srng->lock);
if (srng->u.src_ring.hp == srng->u.src_ring.reap_hp)
return NULL;
desc = srng->ring_base_vaddr + srng->u.src_ring.hp;
srng->u.src_ring.hp = (srng->u.src_ring.hp + srng->entry_size) %
srng->ring_size;
return desc;
}
u32 *ath11k_hal_srng_src_peek(struct ath11k_base *ab, struct hal_srng *srng)
{
lockdep_assert_held(&srng->lock);
if (((srng->u.src_ring.hp + srng->entry_size) % srng->ring_size) ==
srng->u.src_ring.cached_tp)
return NULL;
return srng->ring_base_vaddr + srng->u.src_ring.hp;
}
void ath11k_hal_srng_access_begin(struct ath11k_base *ab, struct hal_srng *srng)
{
lockdep_assert_held(&srng->lock);
if (srng->ring_dir == HAL_SRNG_DIR_SRC) {
srng->u.src_ring.cached_tp =
*(volatile u32 *)srng->u.src_ring.tp_addr;
} else {
srng->u.dst_ring.cached_hp = *srng->u.dst_ring.hp_addr;
/* Try to prefetch the next descriptor in the ring */
if (srng->flags & HAL_SRNG_FLAGS_CACHED)
ath11k_hal_srng_prefetch_desc(ab, srng);
}
}
/* Update cached ring head/tail pointers to HW. ath11k_hal_srng_access_begin()
* should have been called before this.
*/
void ath11k_hal_srng_access_end(struct ath11k_base *ab, struct hal_srng *srng)
{
lockdep_assert_held(&srng->lock);
/* TODO: See if we need a write memory barrier here */
if (srng->flags & HAL_SRNG_FLAGS_LMAC_RING) {
/* For LMAC rings, ring pointer updates are done through FW and
* hence written to a shared memory location that is read by FW
*/
if (srng->ring_dir == HAL_SRNG_DIR_SRC) {
srng->u.src_ring.last_tp =
*(volatile u32 *)srng->u.src_ring.tp_addr;
*srng->u.src_ring.hp_addr = srng->u.src_ring.hp;
} else {
srng->u.dst_ring.last_hp = *srng->u.dst_ring.hp_addr;
*srng->u.dst_ring.tp_addr = srng->u.dst_ring.tp;
}
} else {
if (srng->ring_dir == HAL_SRNG_DIR_SRC) {
srng->u.src_ring.last_tp =
*(volatile u32 *)srng->u.src_ring.tp_addr;
ath11k_hif_write32(ab,
(unsigned long)srng->u.src_ring.hp_addr -
(unsigned long)ab->mem,
srng->u.src_ring.hp);
} else {
srng->u.dst_ring.last_hp = *srng->u.dst_ring.hp_addr;
ath11k_hif_write32(ab,
(unsigned long)srng->u.dst_ring.tp_addr -
(unsigned long)ab->mem,
srng->u.dst_ring.tp);
}
}
srng->timestamp = jiffies;
}
void ath11k_hal_setup_link_idle_list(struct ath11k_base *ab,
struct hal_wbm_idle_scatter_list *sbuf,
u32 nsbufs, u32 tot_link_desc,
u32 end_offset)
{
struct ath11k_buffer_addr *link_addr;
int i;
u32 reg_scatter_buf_sz = HAL_WBM_IDLE_SCATTER_BUF_SIZE / 64;
link_addr = (void *)sbuf[0].vaddr + HAL_WBM_IDLE_SCATTER_BUF_SIZE;
for (i = 1; i < nsbufs; i++) {
link_addr->info0 = sbuf[i].paddr & HAL_ADDR_LSB_REG_MASK;
link_addr->info1 = FIELD_PREP(
HAL_WBM_SCATTERED_DESC_MSB_BASE_ADDR_39_32,
(u64)sbuf[i].paddr >> HAL_ADDR_MSB_REG_SHIFT) |
FIELD_PREP(
HAL_WBM_SCATTERED_DESC_MSB_BASE_ADDR_MATCH_TAG,
BASE_ADDR_MATCH_TAG_VAL);
link_addr = (void *)sbuf[i].vaddr +
HAL_WBM_IDLE_SCATTER_BUF_SIZE;
}
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG + HAL_WBM_R0_IDLE_LIST_CONTROL_ADDR,
FIELD_PREP(HAL_WBM_SCATTER_BUFFER_SIZE, reg_scatter_buf_sz) |
FIELD_PREP(HAL_WBM_LINK_DESC_IDLE_LIST_MODE, 0x1));
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG + HAL_WBM_R0_IDLE_LIST_SIZE_ADDR,
FIELD_PREP(HAL_WBM_SCATTER_RING_SIZE_OF_IDLE_LINK_DESC_LIST,
reg_scatter_buf_sz * nsbufs));
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG +
HAL_WBM_SCATTERED_RING_BASE_LSB,
FIELD_PREP(BUFFER_ADDR_INFO0_ADDR,
sbuf[0].paddr & HAL_ADDR_LSB_REG_MASK));
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG +
HAL_WBM_SCATTERED_RING_BASE_MSB,
FIELD_PREP(
HAL_WBM_SCATTERED_DESC_MSB_BASE_ADDR_39_32,
(u64)sbuf[0].paddr >> HAL_ADDR_MSB_REG_SHIFT) |
FIELD_PREP(
HAL_WBM_SCATTERED_DESC_MSB_BASE_ADDR_MATCH_TAG,
BASE_ADDR_MATCH_TAG_VAL));
/* Setup head and tail pointers for the idle list */
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG +
HAL_WBM_SCATTERED_DESC_PTR_HEAD_INFO_IX0,
FIELD_PREP(BUFFER_ADDR_INFO0_ADDR,
sbuf[nsbufs - 1].paddr));
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG +
HAL_WBM_SCATTERED_DESC_PTR_HEAD_INFO_IX1,
FIELD_PREP(
HAL_WBM_SCATTERED_DESC_MSB_BASE_ADDR_39_32,
((u64)sbuf[nsbufs - 1].paddr >>
HAL_ADDR_MSB_REG_SHIFT)) |
FIELD_PREP(HAL_WBM_SCATTERED_DESC_HEAD_P_OFFSET_IX1,
(end_offset >> 2)));
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG +
HAL_WBM_SCATTERED_DESC_PTR_HEAD_INFO_IX0,
FIELD_PREP(BUFFER_ADDR_INFO0_ADDR,
sbuf[0].paddr));
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG +
HAL_WBM_SCATTERED_DESC_PTR_TAIL_INFO_IX0,
FIELD_PREP(BUFFER_ADDR_INFO0_ADDR,
sbuf[0].paddr));
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG +
HAL_WBM_SCATTERED_DESC_PTR_TAIL_INFO_IX1,
FIELD_PREP(
HAL_WBM_SCATTERED_DESC_MSB_BASE_ADDR_39_32,
((u64)sbuf[0].paddr >> HAL_ADDR_MSB_REG_SHIFT)) |
FIELD_PREP(HAL_WBM_SCATTERED_DESC_TAIL_P_OFFSET_IX1,
0));
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG +
HAL_WBM_SCATTERED_DESC_PTR_HP_ADDR,
2 * tot_link_desc);
/* Enable the SRNG */
ath11k_hif_write32(ab,
HAL_SEQ_WCSS_UMAC_WBM_REG +
HAL_WBM_IDLE_LINK_RING_MISC_ADDR(ab), 0x40);
}
int ath11k_hal_srng_setup(struct ath11k_base *ab, enum hal_ring_type type,
int ring_num, int mac_id,
struct hal_srng_params *params)
{
struct ath11k_hal *hal = &ab->hal;
struct hal_srng_config *srng_config = &ab->hal.srng_config[type];
struct hal_srng *srng;
int ring_id;
u32 lmac_idx;
int i;
u32 reg_base;
ring_id = ath11k_hal_srng_get_ring_id(ab, type, ring_num, mac_id);
if (ring_id < 0)
return ring_id;
srng = &hal->srng_list[ring_id];
srng->ring_id = ring_id;
srng->ring_dir = srng_config->ring_dir;
srng->ring_base_paddr = params->ring_base_paddr;
srng->ring_base_vaddr = params->ring_base_vaddr;
srng->entry_size = srng_config->entry_size;
srng->num_entries = params->num_entries;
srng->ring_size = srng->entry_size * srng->num_entries;
srng->intr_batch_cntr_thres_entries =
params->intr_batch_cntr_thres_entries;
srng->intr_timer_thres_us = params->intr_timer_thres_us;
srng->flags = params->flags;
srng->msi_addr = params->msi_addr;
srng->msi_data = params->msi_data;
srng->initialized = 1;
spin_lock_init(&srng->lock);
lockdep_set_class(&srng->lock, hal->srng_key + ring_id);
for (i = 0; i < HAL_SRNG_NUM_REG_GRP; i++) {
srng->hwreg_base[i] = srng_config->reg_start[i] +
(ring_num * srng_config->reg_size[i]);
}
memset(srng->ring_base_vaddr, 0,
(srng->entry_size * srng->num_entries) << 2);
/* TODO: Add comments on these swap configurations */
if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
srng->flags |= HAL_SRNG_FLAGS_MSI_SWAP | HAL_SRNG_FLAGS_DATA_TLV_SWAP |
HAL_SRNG_FLAGS_RING_PTR_SWAP;
reg_base = srng->hwreg_base[HAL_SRNG_REG_GRP_R2];
if (srng->ring_dir == HAL_SRNG_DIR_SRC) {
srng->u.src_ring.hp = 0;
srng->u.src_ring.cached_tp = 0;
srng->u.src_ring.reap_hp = srng->ring_size - srng->entry_size;
srng->u.src_ring.tp_addr = (void *)(hal->rdp.vaddr + ring_id);
srng->u.src_ring.low_threshold = params->low_threshold *
srng->entry_size;
if (srng_config->lmac_ring) {
lmac_idx = ring_id - HAL_SRNG_RING_ID_LMAC1_ID_START;
srng->u.src_ring.hp_addr = (void *)(hal->wrp.vaddr +
lmac_idx);
srng->flags |= HAL_SRNG_FLAGS_LMAC_RING;
} else {
if (!ab->hw_params.supports_shadow_regs)
srng->u.src_ring.hp_addr =
(u32 *)((unsigned long)ab->mem + reg_base);
else
6.5.5
2023-10-24 12:59:35 +02:00
ath11k_dbg(ab, ATH11K_DBG_HAL,
"type %d ring_num %d reg_base 0x%x shadow 0x%lx\n",
Initial commit
2023-08-30 17:31:07 +02:00
type, ring_num,
reg_base,
(unsigned long)srng->u.src_ring.hp_addr -
(unsigned long)ab->mem);
}
} else {
/* During initialization loop count in all the descriptors
* will be set to zero, and HW will set it to 1 on completing
* descriptor update in first loop, and increments it by 1 on
* subsequent loops (loop count wraps around after reaching
* 0xffff). The 'loop_cnt' in SW ring state is the expected
* loop count in descriptors updated by HW (to be processed
* by SW).
*/
srng->u.dst_ring.loop_cnt = 1;
srng->u.dst_ring.tp = 0;
srng->u.dst_ring.cached_hp = 0;
srng->u.dst_ring.hp_addr = (void *)(hal->rdp.vaddr + ring_id);
if (srng_config->lmac_ring) {
/* For LMAC rings, tail pointer updates will be done
* through FW by writing to a shared memory location
*/
lmac_idx = ring_id - HAL_SRNG_RING_ID_LMAC1_ID_START;
srng->u.dst_ring.tp_addr = (void *)(hal->wrp.vaddr +
lmac_idx);
srng->flags |= HAL_SRNG_FLAGS_LMAC_RING;
} else {
if (!ab->hw_params.supports_shadow_regs)
srng->u.dst_ring.tp_addr =
(u32 *)((unsigned long)ab->mem + reg_base +
(HAL_REO1_RING_TP(ab) - HAL_REO1_RING_HP(ab)));
else
6.5.5
2023-10-24 12:59:35 +02:00
ath11k_dbg(ab, ATH11K_DBG_HAL,
Initial commit
2023-08-30 17:31:07 +02:00
"type %d ring_num %d target_reg 0x%x shadow 0x%lx\n",
type, ring_num,
reg_base + (HAL_REO1_RING_TP(ab) -
HAL_REO1_RING_HP(ab)),
(unsigned long)srng->u.dst_ring.tp_addr -
(unsigned long)ab->mem);
}
}
if (srng_config->lmac_ring)
return ring_id;
ath11k_hal_srng_hw_init(ab, srng);
if (type == HAL_CE_DST) {
srng->u.dst_ring.max_buffer_length = params->max_buffer_len;
ath11k_hal_ce_dst_setup(ab, srng, ring_num);
}
return ring_id;
}
static void ath11k_hal_srng_update_hp_tp_addr(struct ath11k_base *ab,
int shadow_cfg_idx,
enum hal_ring_type ring_type,
int ring_num)
{
struct hal_srng *srng;
struct ath11k_hal *hal = &ab->hal;
int ring_id;
struct hal_srng_config *srng_config = &hal->srng_config[ring_type];
ring_id = ath11k_hal_srng_get_ring_id(ab, ring_type, ring_num, 0);
if (ring_id < 0)
return;
srng = &hal->srng_list[ring_id];
if (srng_config->ring_dir == HAL_SRNG_DIR_DST)
srng->u.dst_ring.tp_addr = (u32 *)(HAL_SHADOW_REG(ab, shadow_cfg_idx) +
(unsigned long)ab->mem);
else
srng->u.src_ring.hp_addr = (u32 *)(HAL_SHADOW_REG(ab, shadow_cfg_idx) +
(unsigned long)ab->mem);
}
int ath11k_hal_srng_update_shadow_config(struct ath11k_base *ab,
enum hal_ring_type ring_type,
int ring_num)
{
struct ath11k_hal *hal = &ab->hal;
struct hal_srng_config *srng_config = &hal->srng_config[ring_type];
int shadow_cfg_idx = hal->num_shadow_reg_configured;
u32 target_reg;
if (shadow_cfg_idx >= HAL_SHADOW_NUM_REGS)
return -EINVAL;
hal->num_shadow_reg_configured++;
target_reg = srng_config->reg_start[HAL_HP_OFFSET_IN_REG_START];
target_reg += srng_config->reg_size[HAL_HP_OFFSET_IN_REG_START] *
ring_num;
/* For destination ring, shadow the TP */
if (srng_config->ring_dir == HAL_SRNG_DIR_DST)
target_reg += HAL_OFFSET_FROM_HP_TO_TP;
hal->shadow_reg_addr[shadow_cfg_idx] = target_reg;
/* update hp/tp addr to hal structure*/
ath11k_hal_srng_update_hp_tp_addr(ab, shadow_cfg_idx, ring_type,
ring_num);
6.5.5
2023-10-24 12:59:35 +02:00
ath11k_dbg(ab, ATH11K_DBG_HAL,
"update shadow config target_reg %x shadow reg 0x%x shadow_idx 0x%x ring_type %d ring num %d",
Initial commit
2023-08-30 17:31:07 +02:00
target_reg,
HAL_SHADOW_REG(ab, shadow_cfg_idx),
shadow_cfg_idx,
ring_type, ring_num);
return 0;
}
void ath11k_hal_srng_shadow_config(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
int ring_type, ring_num;
/* update all the non-CE srngs. */
for (ring_type = 0; ring_type < HAL_MAX_RING_TYPES; ring_type++) {
struct hal_srng_config *srng_config = &hal->srng_config[ring_type];
if (ring_type == HAL_CE_SRC ||
ring_type == HAL_CE_DST ||
ring_type == HAL_CE_DST_STATUS)
continue;
if (srng_config->lmac_ring)
continue;
for (ring_num = 0; ring_num < srng_config->max_rings; ring_num++)
ath11k_hal_srng_update_shadow_config(ab, ring_type, ring_num);
}
}
void ath11k_hal_srng_get_shadow_config(struct ath11k_base *ab,
u32 **cfg, u32 *len)
{
struct ath11k_hal *hal = &ab->hal;
*len = hal->num_shadow_reg_configured;
*cfg = hal->shadow_reg_addr;
}
void ath11k_hal_srng_shadow_update_hp_tp(struct ath11k_base *ab,
struct hal_srng *srng)
{
lockdep_assert_held(&srng->lock);
/* check whether the ring is empty. Update the shadow
* HP only when then ring isn't empty.
*/
if (srng->ring_dir == HAL_SRNG_DIR_SRC &&
*srng->u.src_ring.tp_addr != srng->u.src_ring.hp)
ath11k_hal_srng_access_end(ab, srng);
}
static int ath11k_hal_srng_create_config(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
struct hal_srng_config *s;
hal->srng_config = kmemdup(hw_srng_config_template,
sizeof(hw_srng_config_template),
GFP_KERNEL);
if (!hal->srng_config)
return -ENOMEM;
s = &hal->srng_config[HAL_REO_DST];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_RING_HP(ab);
s->reg_size[0] = HAL_REO2_RING_BASE_LSB(ab) - HAL_REO1_RING_BASE_LSB(ab);
s->reg_size[1] = HAL_REO2_RING_HP(ab) - HAL_REO1_RING_HP(ab);
s = &hal->srng_config[HAL_REO_EXCEPTION];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO_TCL_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO_TCL_RING_HP(ab);
s = &hal->srng_config[HAL_REO_REINJECT];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_SW2REO_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_SW2REO_RING_HP(ab);
s = &hal->srng_config[HAL_REO_CMD];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO_CMD_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO_CMD_HP(ab);
s = &hal->srng_config[HAL_REO_STATUS];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO_STATUS_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO_STATUS_HP(ab);
s = &hal->srng_config[HAL_TCL_DATA];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_TCL_REG + HAL_TCL1_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_TCL_REG + HAL_TCL1_RING_HP;
s->reg_size[0] = HAL_TCL2_RING_BASE_LSB(ab) - HAL_TCL1_RING_BASE_LSB(ab);
s->reg_size[1] = HAL_TCL2_RING_HP - HAL_TCL1_RING_HP;
s = &hal->srng_config[HAL_TCL_CMD];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_TCL_REG + HAL_TCL_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_TCL_REG + HAL_TCL_RING_HP;
s = &hal->srng_config[HAL_TCL_STATUS];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_TCL_REG + HAL_TCL_STATUS_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_TCL_REG + HAL_TCL_STATUS_RING_HP;
s = &hal->srng_config[HAL_CE_SRC];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_CE0_SRC_REG(ab) + HAL_CE_DST_RING_BASE_LSB +
ATH11K_CE_OFFSET(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_CE0_SRC_REG(ab) + HAL_CE_DST_RING_HP +
ATH11K_CE_OFFSET(ab);
s->reg_size[0] = HAL_SEQ_WCSS_UMAC_CE1_SRC_REG(ab) -
HAL_SEQ_WCSS_UMAC_CE0_SRC_REG(ab);
s->reg_size[1] = HAL_SEQ_WCSS_UMAC_CE1_SRC_REG(ab) -
HAL_SEQ_WCSS_UMAC_CE0_SRC_REG(ab);
s = &hal->srng_config[HAL_CE_DST];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_CE0_DST_REG(ab) + HAL_CE_DST_RING_BASE_LSB +
ATH11K_CE_OFFSET(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_CE0_DST_REG(ab) + HAL_CE_DST_RING_HP +
ATH11K_CE_OFFSET(ab);
s->reg_size[0] = HAL_SEQ_WCSS_UMAC_CE1_DST_REG(ab) -
HAL_SEQ_WCSS_UMAC_CE0_DST_REG(ab);
s->reg_size[1] = HAL_SEQ_WCSS_UMAC_CE1_DST_REG(ab) -
HAL_SEQ_WCSS_UMAC_CE0_DST_REG(ab);
s = &hal->srng_config[HAL_CE_DST_STATUS];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_CE0_DST_REG(ab) +
HAL_CE_DST_STATUS_RING_BASE_LSB + ATH11K_CE_OFFSET(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_CE0_DST_REG(ab) + HAL_CE_DST_STATUS_RING_HP +
ATH11K_CE_OFFSET(ab);
s->reg_size[0] = HAL_SEQ_WCSS_UMAC_CE1_DST_REG(ab) -
HAL_SEQ_WCSS_UMAC_CE0_DST_REG(ab);
s->reg_size[1] = HAL_SEQ_WCSS_UMAC_CE1_DST_REG(ab) -
HAL_SEQ_WCSS_UMAC_CE0_DST_REG(ab);
s = &hal->srng_config[HAL_WBM_IDLE_LINK];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_WBM_REG + HAL_WBM_IDLE_LINK_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_WBM_REG + HAL_WBM_IDLE_LINK_RING_HP;
s = &hal->srng_config[HAL_SW2WBM_RELEASE];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_WBM_REG + HAL_WBM_RELEASE_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_WBM_REG + HAL_WBM_RELEASE_RING_HP;
s = &hal->srng_config[HAL_WBM2SW_RELEASE];
s->reg_start[0] = HAL_SEQ_WCSS_UMAC_WBM_REG + HAL_WBM0_RELEASE_RING_BASE_LSB(ab);
s->reg_start[1] = HAL_SEQ_WCSS_UMAC_WBM_REG + HAL_WBM0_RELEASE_RING_HP;
s->reg_size[0] = HAL_WBM1_RELEASE_RING_BASE_LSB(ab) -
HAL_WBM0_RELEASE_RING_BASE_LSB(ab);
s->reg_size[1] = HAL_WBM1_RELEASE_RING_HP - HAL_WBM0_RELEASE_RING_HP;
return 0;
}
static void ath11k_hal_register_srng_key(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
u32 ring_id;
for (ring_id = 0; ring_id < HAL_SRNG_RING_ID_MAX; ring_id++)
lockdep_register_key(hal->srng_key + ring_id);
}
static void ath11k_hal_unregister_srng_key(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
u32 ring_id;
for (ring_id = 0; ring_id < HAL_SRNG_RING_ID_MAX; ring_id++)
lockdep_unregister_key(hal->srng_key + ring_id);
}
int ath11k_hal_srng_init(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
int ret;
memset(hal, 0, sizeof(*hal));
ret = ath11k_hal_srng_create_config(ab);
if (ret)
goto err_hal;
ret = ath11k_hal_alloc_cont_rdp(ab);
if (ret)
goto err_hal;
ret = ath11k_hal_alloc_cont_wrp(ab);
if (ret)
goto err_free_cont_rdp;
ath11k_hal_register_srng_key(ab);
return 0;
err_free_cont_rdp:
ath11k_hal_free_cont_rdp(ab);
err_hal:
return ret;
}
EXPORT_SYMBOL(ath11k_hal_srng_init);
void ath11k_hal_srng_deinit(struct ath11k_base *ab)
{
struct ath11k_hal *hal = &ab->hal;
ath11k_hal_unregister_srng_key(ab);
ath11k_hal_free_cont_rdp(ab);
ath11k_hal_free_cont_wrp(ab);
kfree(hal->srng_config);
}
EXPORT_SYMBOL(ath11k_hal_srng_deinit);
void ath11k_hal_dump_srng_stats(struct ath11k_base *ab)
{
struct hal_srng *srng;
struct ath11k_ext_irq_grp *irq_grp;
struct ath11k_ce_pipe *ce_pipe;
int i;
ath11k_err(ab, "Last interrupt received for each CE:\n");
for (i = 0; i < ab->hw_params.ce_count; i++) {
ce_pipe = &ab->ce.ce_pipe[i];
if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
continue;
ath11k_err(ab, "CE_id %d pipe_num %d %ums before\n",
i, ce_pipe->pipe_num,
jiffies_to_msecs(jiffies - ce_pipe->timestamp));
}
ath11k_err(ab, "\nLast interrupt received for each group:\n");
for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
irq_grp = &ab->ext_irq_grp[i];
ath11k_err(ab, "group_id %d %ums before\n",
irq_grp->grp_id,
jiffies_to_msecs(jiffies - irq_grp->timestamp));
}
for (i = 0; i < HAL_SRNG_RING_ID_MAX; i++) {
srng = &ab->hal.srng_list[i];
if (!srng->initialized)
continue;
if (srng->ring_dir == HAL_SRNG_DIR_SRC)
ath11k_err(ab,
"src srng id %u hp %u, reap_hp %u, cur tp %u, cached tp %u last tp %u napi processed before %ums\n",
srng->ring_id, srng->u.src_ring.hp,
srng->u.src_ring.reap_hp,
*srng->u.src_ring.tp_addr, srng->u.src_ring.cached_tp,
srng->u.src_ring.last_tp,
jiffies_to_msecs(jiffies - srng->timestamp));
else if (srng->ring_dir == HAL_SRNG_DIR_DST)
ath11k_err(ab,
"dst srng id %u tp %u, cur hp %u, cached hp %u last hp %u napi processed before %ums\n",
srng->ring_id, srng->u.dst_ring.tp,
*srng->u.dst_ring.hp_addr,
srng->u.dst_ring.cached_hp,
srng->u.dst_ring.last_hp,
jiffies_to_msecs(jiffies - srng->timestamp));
}
}