kernel: Refactor AHCI I/O path, enhance memory allocators, and cleanup obsolete script

- Removed unused `build_gcc.sh` script.
- Namespaced CPU feature flags under `NeOS` and transitioned from enum to unnamed enum for scoping.
- Renamed `drv_std_input_output` to `drv_std_input_output_ahci` for clarity.
- Improved AHCI driver documentation and added zeroing for read buffers.
- Added optional `pad` parameter to memory allocators: `mm_alloc_bitmap`, `mm_new_heap`, `PageMgr::Request`, etc.
- Updated bitmap allocator to correctly handle and align with padded sizes.
- Added `fPad` field to memory header block.
- Fixed `ATA-DMA` mode comment, corrected PRD usage and logic.
- Improved code documentation and formatting in `UserProcessScheduler`, `PageMgr`, and related components.
- Enhanced safety in process memory cleanup (e.g., `StackReserve` cleanup).

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

1 files changed, 66 insertions, 65 deletions

diff --git a/dev/kernel/HALKit/AMD64/CPUID.h b/dev/kernel/HALKit/AMD64/CPUID.h
index 7f04ac27..6ea84106 100644
--- a/dev/kernel/HALKit/AMD64/CPUID.h
+++ b/dev/kernel/HALKit/AMD64/CPUID.h
@@ -15,72 +15,73 @@
 
 #include <NewKit/Defines.h>
 
-enum CPUFeatureEnum
-{
-	kCPUFeatureSSE3		  = 1 << 0,
-	kCPUFeaturePCLMUL	  = 1 << 1,
-	kCPUFeatureDTES64	  = 1 << 2,
-	kCPUFeatureMONITOR	  = 1 << 3,
-	kCPUFeatureDS_CPL	  = 1 << 4,
-	kCPUFeatureVMX		  = 1 << 5,
-	kCPUFeatureSMX		  = 1 << 6,
-	kCPUFeatureEST		  = 1 << 7,
-	kCPUFeatureTM2		  = 1 << 8,
-	kCPUFeatureSSSE3	  = 1 << 9,
-	kCPUFeatureCID		  = 1 << 10,
-	kCPUFeatureSDBG		  = 1 << 11,
-	kCPUFeatureFMA		  = 1 << 12,
-	kCPUFeatureCX16		  = 1 << 13,
-	kCPUFeatureXTPR		  = 1 << 14,
-	kCPUFeaturePDCM		  = 1 << 15,
-	kCPUFeaturePCID		  = 1 << 17,
-	kCPUFeatureDCA		  = 1 << 18,
-	kCPUFeatureSSE4_1	  = 1 << 19,
-	kCPUFeatureSSE4_2	  = 1 << 20,
-	kCPUFeatureX2APIC	  = 1 << 21,
-	kCPUFeatureMOVBE	  = 1 << 22,
-	kCPUFeaturePOP3C	  = 1 << 23,
-	kCPUFeatureECXTSC	  = 1 << 24,
-	kCPUFeatureAES		  = 1 << 25,
-	kCPUFeatureXSAVE	  = 1 << 26,
-	kCPUFeatureOSXSAVE	  = 1 << 27,
-	kCPUFeatureAVX		  = 1 << 28,
-	kCPUFeatureF16C		  = 1 << 29,
-	kCPUFeatureRDRAND	  = 1 << 30,
-	kCPUFeatureHYPERVISOR = 1 << 31,
-	kCPUFeatureFPU		  = 1 << 0,
-	kCPUFeatureVME		  = 1 << 1,
-	kCPUFeatureDE		  = 1 << 2,
-	kCPUFeaturePSE		  = 1 << 3,
-	kCPUFeatureEDXTSC	  = 1 << 4,
-	kCPUFeatureMSR		  = 1 << 5,
-	kCPUFeaturePAE		  = 1 << 6,
-	kCPUFeatureMCE		  = 1 << 7,
-	kCPUFeatureCX8		  = 1 << 8,
-	kCPUFeatureAPIC		  = 1 << 9,
-	kCPUFeatureSEP		  = 1 << 11,
-	kCPUFeatureMTRR		  = 1 << 12,
-	kCPUFeaturePGE		  = 1 << 13,
-	kCPUFeatureMCA		  = 1 << 14,
-	kCPUFeatureCMOV		  = 1 << 15,
-	kCPUFeaturePAT		  = 1 << 16,
-	kCPUFeaturePSE36	  = 1 << 17,
-	kCPUFeaturePSN		  = 1 << 18,
-	kCPUFeatureCLFLUSH	  = 1 << 19,
-	kCPUFeatureDS		  = 1 << 21,
-	kCPUFeatureACPI		  = 1 << 22,
-	kCPUFeatureMMX		  = 1 << 23,
-	kCPUFeatureFXSR		  = 1 << 24,
-	kCPUFeatureSSE		  = 1 << 25,
-	kCPUFeatureSSE2		  = 1 << 26,
-	kCPUFeatureSS		  = 1 << 27,
-	kCPUFeatureHTT		  = 1 << 28,
-	kCPUFeatureTM		  = 1 << 29,
-	kCPUFeatureIA64		  = 1 << 30,
-	kCPUFeaturePBE		  = 1 << 31
-};
-
 namespace NeOS
 {
+
+	enum
+	{
+		kCPUFeatureSSE3		  = 1 << 0,
+		kCPUFeaturePCLMUL	  = 1 << 1,
+		kCPUFeatureDTES64	  = 1 << 2,
+		kCPUFeatureMONITOR	  = 1 << 3,
+		kCPUFeatureDS_CPL	  = 1 << 4,
+		kCPUFeatureVMX		  = 1 << 5,
+		kCPUFeatureSMX		  = 1 << 6,
+		kCPUFeatureEST		  = 1 << 7,
+		kCPUFeatureTM2		  = 1 << 8,
+		kCPUFeatureSSSE3	  = 1 << 9,
+		kCPUFeatureCID		  = 1 << 10,
+		kCPUFeatureSDBG		  = 1 << 11,
+		kCPUFeatureFMA		  = 1 << 12,
+		kCPUFeatureCX16		  = 1 << 13,
+		kCPUFeatureXTPR		  = 1 << 14,
+		kCPUFeaturePDCM		  = 1 << 15,
+		kCPUFeaturePCID		  = 1 << 17,
+		kCPUFeatureDCA		  = 1 << 18,
+		kCPUFeatureSSE4_1	  = 1 << 19,
+		kCPUFeatureSSE4_2	  = 1 << 20,
+		kCPUFeatureX2APIC	  = 1 << 21,
+		kCPUFeatureMOVBE	  = 1 << 22,
+		kCPUFeaturePOP3C	  = 1 << 23,
+		kCPUFeatureECXTSC	  = 1 << 24,
+		kCPUFeatureAES		  = 1 << 25,
+		kCPUFeatureXSAVE	  = 1 << 26,
+		kCPUFeatureOSXSAVE	  = 1 << 27,
+		kCPUFeatureAVX		  = 1 << 28,
+		kCPUFeatureF16C		  = 1 << 29,
+		kCPUFeatureRDRAND	  = 1 << 30,
+		kCPUFeatureHYPERVISOR = 1 << 31,
+		kCPUFeatureFPU		  = 1 << 0,
+		kCPUFeatureVME		  = 1 << 1,
+		kCPUFeatureDE		  = 1 << 2,
+		kCPUFeaturePSE		  = 1 << 3,
+		kCPUFeatureEDXTSC	  = 1 << 4,
+		kCPUFeatureMSR		  = 1 << 5,
+		kCPUFeaturePAE		  = 1 << 6,
+		kCPUFeatureMCE		  = 1 << 7,
+		kCPUFeatureCX8		  = 1 << 8,
+		kCPUFeatureAPIC		  = 1 << 9,
+		kCPUFeatureSEP		  = 1 << 11,
+		kCPUFeatureMTRR		  = 1 << 12,
+		kCPUFeaturePGE		  = 1 << 13,
+		kCPUFeatureMCA		  = 1 << 14,
+		kCPUFeatureCMOV		  = 1 << 15,
+		kCPUFeaturePAT		  = 1 << 16,
+		kCPUFeaturePSE36	  = 1 << 17,
+		kCPUFeaturePSN		  = 1 << 18,
+		kCPUFeatureCLFLUSH	  = 1 << 19,
+		kCPUFeatureDS		  = 1 << 21,
+		kCPUFeatureACPI		  = 1 << 22,
+		kCPUFeatureMMX		  = 1 << 23,
+		kCPUFeatureFXSR		  = 1 << 24,
+		kCPUFeatureSSE		  = 1 << 25,
+		kCPUFeatureSSE2		  = 1 << 26,
+		kCPUFeatureSS		  = 1 << 27,
+		kCPUFeatureHTT		  = 1 << 28,
+		kCPUFeatureTM		  = 1 << 29,
+		kCPUFeatureIA64		  = 1 << 30,
+		kCPUFeaturePBE		  = 1 << 31
+	};
+
 	typedef Int64 CPUID;
 } // namespace NeOS