kernel/boot/efi: Continue breaking apart arch-specific code; hpet

* Move x86 hpet behind timer interface.
  * Add a few if x86,x86_64 macros to start.cpp.

Change-Id: I583ec1b064785182e6d48dfbcd91b1bb2ead4b44
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1929
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>

headers/private/kernel/boot/platform/efi/arch_timer.h

@@ -0,0 +1,10 @@
+/*
+ * Copyright 2008, Dustin Howett, dustin.howett@gmail.com. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef ARCH_TIMER_H
+#define ARCH_TIMER_H
+
+void arch_timer_init(void);
+
+#endif	/* ARCH_TIMER_H */

src/system/boot/platform/efi/Jamfile

@@ -27,9 +27,9 @@ local platform_src =
 	mmu.cpp
 	heap.cpp
 	acpi.cpp
+	timer.cpp
 	menu.cpp
 	devices.cpp
-	hpet.cpp
 	cpu.cpp
 	smp.cpp
 	serial.cpp

src/system/boot/platform/efi/arch/arm/Jamfile

@@ -0,0 +1,30 @@
+SubDir HAIKU_TOP src system boot platform efi arch arm ;
+
+SubDirHdrs $(HAIKU_TOP) src system boot platform efi ;
+
+UsePrivateHeaders [ FDirName kernel boot platform efi ] ;
+UseBuildFeatureHeaders gnuefi ;
+UseBuildFeatureHeaders gnuefi : headersProtocol ;
+UseBuildFeatureHeaders gnuefi : headersArch ;
+
+local arch_src =
+	#entry.S
+	relocation_func.cpp
+	#arch_smp.cpp
+	#arch_mmu.cpp
+	arch_timer.cpp
+	;
+
+BootMergeObject boot_platform_efi_arm.o :
+	$(arch_src)
+	;
+
+Includes [ FGristFiles $(arch_src) ]
+    :
+    [ BuildFeatureAttribute gnuefi : headers ]
+    [ BuildFeatureAttribute gnuefi : headersProtocol ]
+    [ BuildFeatureAttribute gnuefi : headersArch ]
+	;
+
+Depends [ FGristFiles $(arch_src) ]
+	: [ BuildFeatureAttribute gnuefi : libdir ] ;

src/system/boot/platform/efi/arch/arm/arch_timer.cpp

@@ -0,0 +1,33 @@
+/*
+ * Copyright, 2019, Haiku, Inc. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 	Alexander von Gluck IV <kallisti5@unixzen.com>
+*/
+
+
+#include "arch_timer.h"
+
+#include <KernelExport.h>
+
+#include <kernel.h>
+#include <safemode.h>
+#include <boot/stage2.h>
+#include <boot/menu.h>
+
+#include <string.h>
+
+//#define TRACE_TIMER
+#ifdef TRACE_TIMER
+#	define TRACE(x) dprintf x
+#else
+#	define TRACE(x) ;
+#endif
+
+
+void
+arch_timer_init(void)
+{
+	// Stub
+}

src/system/boot/platform/efi/arch/arm/arch_timer.h

@@ -12,7 +12,7 @@
 extern "C" {
 #endif
 
-void hpet_init(void);
+void arch_timer_init(void);
 
 #ifdef __cplusplus
 }

src/system/boot/platform/efi/arch/x86_64/Jamfile

@@ -12,6 +12,7 @@ local arch_src =
 	relocation_func.cpp
 	arch_smp.cpp
 	arch_mmu.cpp
+	arch_timer.cpp
 	;
 
 BootMergeObject boot_platform_efi_x86_64.o :

src/system/boot/platform/efi/arch/x86_64/arch_timer.cpp

@@ -7,11 +7,13 @@
 */
 
 
+#include "arch_timer.h"
+
 #include "mmu.h"
 #include "acpi.h"
-#include "hpet.h"
 
 #include <KernelExport.h>
+#include <SupportDefs.h>
 
 #include <kernel.h>
 #include <safemode.h>
@@ -23,15 +25,15 @@
 
 #include <string.h>
 
-//#define TRACE_HPET
-#ifdef TRACE_HPET
+//#define TRACE_TIMER
+#ifdef TRACE_TIMER
 #	define TRACE(x) dprintf x
 #else
 #	define TRACE(x) ;
 #endif
 
 
-void
+static void
 hpet_init(void)
 {
 	// Try to find the HPET ACPI table.
@@ -53,3 +55,10 @@ hpet_init(void)
 	gKernelArgs.arch_args.hpet = (void *)mmu_map_physical_memory(
 		gKernelArgs.arch_args.hpet_phys, B_PAGE_SIZE, EfiACPIReclaimMemory);
 }
+
+
+void
+arch_timer_init(void)
+{
+	hpet_init();
+}

src/system/boot/platform/efi/mmu.cpp

@@ -203,7 +203,11 @@ mmu_post_efi_setup(UINTN memory_map_size, EFI_MEMORY_DESCRIPTOR *memory_map, UIN
 	kRuntimeServices->SetVirtualAddressMap(memory_map_size, descriptor_size, descriptor_version, memory_map);
 
 	// Important.  Make sure supervisor threads can fault on read only pages...
+	#if defined(__x86_64__) || defined(__x86__)
 	asm("mov %%rax, %%cr0" : : "a" ((1 << 31) | (1 << 16) | (1 << 5) | 1));
+	#else
+	#error Ensure supervisor threads can fault on read-only pages on this architecture!
+	#endif
 }
 
 

src/system/boot/platform/efi/start.cpp

@@ -22,11 +22,11 @@
 #include "acpi.h"
 #include "console.h"
 #include "efi_platform.h"
-#include "hpet.h"
 #include "cpu.h"
 #include "mmu.h"
 #include "serial.h"
 #include "smp.h"
+#include "timer.h"
 
 
 extern void (*__ctor_list)(void);
@@ -88,8 +88,10 @@ convert_kernel_args()
 	fix_address(gKernelArgs.edid_info);
 	fix_address(gKernelArgs.debug_output);
 	fix_address(gKernelArgs.boot_splash);
+	#if defined(__x86_64__) || defined(__x86__)
 	fix_address(gKernelArgs.arch_args.apic);
 	fix_address(gKernelArgs.arch_args.hpet);
+	#endif
 
 	convert_preloaded_image(static_cast<preloaded_elf64_image*>(
 		gKernelArgs.kernel_image.Pointer()));
@@ -261,12 +263,14 @@ efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *systemTable)
 	gKernelArgs.platform_args.apm.version = 0;
 
 	gKernelArgs.num_cpus = 1;
+	#if defined(__x86_64__) || defined(__x86__)
 	gKernelArgs.arch_args.hpet_phys = 0;
 	gKernelArgs.arch_args.hpet = NULL;
+	#endif
 
 	cpu_init();
 	acpi_init();
-	hpet_init();
+	timer_init();
 	smp_init();
 
 	main(&args);

src/system/boot/platform/efi/timer.cpp

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2008, Dustin Howett, dustin.howett@gmail.com. All rights reserved.
+ * Copyright 2004-2010, Axel Dörfler, axeld@pinc-software.de.
+ * Distributed under the terms of the MIT License.
+ *
+ * Copyright 2001, Travis Geiselbrecht. All rights reserved.
+ * Distributed under the terms of the NewOS License.
+*/
+
+
+#include "timer.h"
+
+#include <string.h>
+#include <KernelExport.h>
+
+#include "arch_timer.h"
+
+
+//#define TRACE_TIMER
+#ifdef TRACE_TIMER
+#	define TRACE(x) dprintf x
+#else
+#	define TRACE(x) ;
+#endif
+
+
+void
+timer_init(void)
+{
+	arch_timer_init();
+}

src/system/boot/platform/efi/timer.h

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef EFI_TIMER_H
+#define EFI_TIMER_H
+
+
+#include <SupportDefs.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void timer_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif	/* EFI_TIMER_H */