From f5de966471457274035da48cf834f33509e8af61 Mon Sep 17 00:00:00 2001
From: Marco Casaroli <marco.casaroli@gmail.com>
Date: Mon, 1 Jul 2024 14:25:22 +0000
Subject: [PATCH] fix(esp32-qemu-openeth): allocate buffers in internal memory

When the PSRAM is enabled, we should not allocate the TX/RX
buffers there, so we use kmm_calloc here, to make it into IRAM,
so the ethernet controller can read bytes from it.
---
 arch/xtensa/src/esp32/esp32_openeth.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/xtensa/src/esp32/esp32_openeth.c b/arch/xtensa/src/esp32/esp32_openeth.c
index 442c0af874..2f157992d2 100644
--- a/arch/xtensa/src/esp32/esp32_openeth.c
+++ b/arch/xtensa/src/esp32/esp32_openeth.c
@@ -38,6 +38,7 @@
 
 #include <nuttx/arch.h>
 #include <nuttx/irq.h>
+#include <nuttx/kmalloc.h>
 #include <nuttx/wqueue.h>
 #include <nuttx/net/netconfig.h>
 #include <nuttx/net/ip.h>
@@ -791,7 +792,7 @@ int esp32_openeth_initialize(void)
 
   for (int i = 0; i < RX_BUF_COUNT; i++)
     {
-      priv->rx_buf[i] = calloc(1, DMA_BUF_SIZE);
+      priv->rx_buf[i] = kmm_calloc(1, DMA_BUF_SIZE);
       if (!(priv->rx_buf[i]))
         {
           nerr("ERROR: Failed allocate RX descriptors\n");
@@ -807,7 +808,7 @@ int esp32_openeth_initialize(void)
 
   for (int i = 0; i < TX_BUF_COUNT; i++)
     {
-      priv->tx_buf[i] = calloc(1, DMA_BUF_SIZE);
+      priv->tx_buf[i] = kmm_calloc(1, DMA_BUF_SIZE);
       if (!(priv->tx_buf[i]))
         {
           nerr("ERROR: Failed allocate TX descriptors\n");