From ed8b21063965bf13fd0a85cc699207b2eb0715d3 Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Tue, 8 Aug 2023 18:23:13 +0200
Subject: [PATCH] kernel: Detect some other cases of non-DMA support

---
 kernel/src/arch/x86_64/disk/ATA.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/kernel/src/arch/x86_64/disk/ATA.cpp b/kernel/src/arch/x86_64/disk/ATA.cpp
index e324b00c..f9343190 100644
--- a/kernel/src/arch/x86_64/disk/ATA.cpp
+++ b/kernel/src/arch/x86_64/disk/ATA.cpp
@@ -431,6 +431,18 @@ namespace ATA
             m_uses_dma = false;
         }
 
+        if (m_drive_index == 0 && !(status & BMS_MasterInit))
+        {
+            kwarnln("ata: Drive %d does not have DMA support", m_drive_index);
+            m_uses_dma = false;
+        }
+
+        if (m_drive_index == 1 && !(status & BMS_SlaveInit))
+        {
+            kwarnln("ata: Drive %d does not have DMA support", m_drive_index);
+            m_uses_dma = false;
+        }
+
         auto frame = MemoryManager::alloc_frame();
         if (frame.has_error() || frame.value() > 0xffffffff)
         {