8f34c2760d
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp: Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem. sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately. sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades. sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for fastboot. Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
#include <linux/version.h>
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#include <linux/module.h>
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#include <linux/vmalloc.h>
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#include <linux/skbuff.h>
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#include <linux/pm_runtime.h>
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#include "ssv_alloc_skb.h"
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#include "hwif/hwif.h"
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#include "ssv_debug.h"
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#if (CONFIG_PRE_ALLOC_SKB != 0)
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#define PRE_ALLOC_RX_USED_LEN_THRESHOLD 2304
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extern struct sk_buff *ssv_pre_allocate_rx_skb_alloc(void);
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extern int ssv_pre_allocate_rx_skb_free(struct sk_buff *skb);
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extern struct sk_buff *ssv_pre_allocate_tx_skb_alloc(void);
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extern int ssv_pre_allocate_tx_skb_free(struct sk_buff *skb);
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#endif
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struct sk_buff *ssv_rx_skb_alloc(unsigned int frame_len, gfp_t flags)
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{
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struct sk_buff *skb;
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int size = frame_len + PLATFORM_DEF_DMA_ALIGN_SIZE-1;
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#if (CONFIG_PRE_ALLOC_SKB != 0)
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if (frame_len < PRE_ALLOC_RX_USED_LEN_THRESHOLD) {
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skb = __dev_alloc_skb(size, flags);
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skb->cb[0] = 0x0;
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} else {
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skb = ssv_pre_allocate_rx_skb_alloc();
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// tag pre alloc rx
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skb->cb[0] = 'p';
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skb->cb[1] = 'r';
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skb->cb[2] = 'e';
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skb->cb[3] = 'r';
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skb->cb[4] = 'x';
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}
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#else
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skb = __dev_alloc_skb(size, flags);
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skb->cb[0] = 0x0;
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#endif
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if (skb) {
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if ((unsigned long)(skb->data) % PLATFORM_DEF_DMA_ALIGN_SIZE) {
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unsigned long shift = PLATFORM_DEF_DMA_ALIGN_SIZE -
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((unsigned long)(skb->data) % PLATFORM_DEF_DMA_ALIGN_SIZE);
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skb_reserve(skb, shift);
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}
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}
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return skb;
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}
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void ssv_rx_skb_free(struct sk_buff *skb)
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{
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#if (CONFIG_PRE_ALLOC_SKB != 0)
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if ((skb->cb[0] == 'p') && (skb->cb[1] == 'r') && (skb->cb[2] == 'e') &&
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(skb->cb[3] == 'r') && (skb->cb[4] == 'x')) {
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if (ssv_pre_allocate_rx_skb_free(skb) == -EFAULT) {
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//dev_kfree_skb_any(skb);
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BUG_ON(1);
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}
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} else {
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dev_kfree_skb_any(skb);
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}
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#else
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dev_kfree_skb_any(skb);
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#endif
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}
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struct sk_buff *ssv_tx_skb_alloc(unsigned int frame_len, gfp_t flags)
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{
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struct sk_buff *skb;
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#if (CONFIG_PRE_ALLOC_SKB != 0)
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skb = ssv_pre_allocate_tx_skb_alloc();
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#else
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{
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int size = frame_len + PLATFORM_DEF_DMA_ALIGN_SIZE-1;
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skb = __dev_alloc_skb(size, flags);
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}
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#endif
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if (skb) {
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if ((unsigned long)skb->data % PLATFORM_DEF_DMA_ALIGN_SIZE) {
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unsigned long shift = PLATFORM_DEF_DMA_ALIGN_SIZE - ((unsigned long)skb->data % PLATFORM_DEF_DMA_ALIGN_SIZE);
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skb_reserve(skb, shift);
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}
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}
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return skb;
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}
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void ssv_tx_skb_free(struct sk_buff *skb)
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{
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#if (CONFIG_PRE_ALLOC_SKB != 0)
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ssv_pre_allocate_tx_skb_free(skb);
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#else
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dev_kfree_skb_any(skb);
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#endif
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}
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