From 01ed65f720a32e35d12c7f4d68297e3599157846 Mon Sep 17 00:00:00 2001
From: ian <ian>
Date: Fri, 28 Jul 2023 08:43:09 +0000
Subject: kernel: Cleanup arch abstraction layer

git-svn-id: https://svn.vegaa.systems/svn/vega-Vega/trunk@29 a8a8aea2-181d-ee11-89e8-15fd0e089fc4
---
 sys/arch/amd64/gdt.c         |  6 +++---
 sys/arch/amd64/machdep.c     | 12 ++++++------
 sys/include/arch/amd64/gdt.h |  4 ++--
 sys/include/sys/machdep.h    | 39 ++-------------------------------------
 sys/kern/init_main.c         |  6 +-----
 5 files changed, 14 insertions(+), 53 deletions(-)

diff --git a/sys/arch/amd64/gdt.c b/sys/arch/amd64/gdt.c
index 446306a..cb32837 100644
--- a/sys/arch/amd64/gdt.c
+++ b/sys/arch/amd64/gdt.c
@@ -31,7 +31,7 @@
 
 #include <machine/gdt.h>
 
-struct gdt_entry g_dmmy_gdt[256] = {
+struct gdt_entry g_gdt[256] = {
     /* Null */
     {0},
 
@@ -76,7 +76,7 @@ struct gdt_entry g_dmmy_gdt[256] = {
     },
 };
 
-struct gdtr g_early_gdtr = {
+struct gdtr g_gdtr = {
     .limit = sizeof(struct gdt_entry) * 256 - 1,
-    .offset = (uintptr_t)&g_dmmy_gdt[0]
+    .offset = (uintptr_t)&g_gdt[0]
 };
diff --git a/sys/arch/amd64/machdep.c b/sys/arch/amd64/machdep.c
index 747d23a..8203a07 100644
--- a/sys/arch/amd64/machdep.c
+++ b/sys/arch/amd64/machdep.c
@@ -33,13 +33,13 @@
 #include <sys/cdefs.h>
 #include <machine/trap.h>
 #include <machine/idt.h>
+#include <machine/gdt.h>
 
 #define ISR(func) ((uintptr_t)func)
 
-__weak void
-interrupts_init(struct processor *processor)
+static void
+interrupts_init(void)
 {
-    __USE(processor);
     idt_set_desc(0x0, IDT_TRAP_GATE_FLAGS, ISR(arith_err), 0);
     idt_set_desc(0x2, IDT_TRAP_GATE_FLAGS, ISR(nmi), 0);
     idt_set_desc(0x3, IDT_TRAP_GATE_FLAGS, ISR(breakpoint_handler), 0);
@@ -61,8 +61,8 @@ processor_halt(void)
 }
 
 __weak void
-processor_init(struct processor *processor)
+processor_init(void)
 {
-    gdt_load(processor->machdep.gdtr);
-    interrupts_init(processor);
+    gdt_load(&g_gdtr);
+    interrupts_init();
 }
diff --git a/sys/include/arch/amd64/gdt.h b/sys/include/arch/amd64/gdt.h
index 756e2a6..2b7f308 100644
--- a/sys/include/arch/amd64/gdt.h
+++ b/sys/include/arch/amd64/gdt.h
@@ -74,7 +74,7 @@ gdt_load(struct gdtr *gdtr)
         );
 }
 
-extern struct gdt_entry g_dmmy_gdt[256];
-extern struct gdtr g_early_gdtr;
+extern struct gdt_entry g_gdt[256];
+extern struct gdtr g_gdtr;
 
 #endif  /* !AMD64_GDT_H_ */
diff --git a/sys/include/sys/machdep.h b/sys/include/sys/machdep.h
index f98b123..b9a6221 100644
--- a/sys/include/sys/machdep.h
+++ b/sys/include/sys/machdep.h
@@ -33,46 +33,11 @@
 #define _SYS_MACHDEP_H_
 
 #include <sys/types.h>
-#if defined(_KERNEL)
-#include <machine/gdt.h>
-#endif      /* defined(_KERNEL) */
+#include <sys/cdefs.h>
 
 #if defined(_KERNEL)
 
-/*
- * Arch specifics go here
- * along with an #if defined(...)
- *
- * XXX: When porting more architectures this
- *      may get messy. Figure out a way to
- *      seperate this into a different header.
- */
-struct processor_machdep {
-#if defined(__x86_64__)
-    struct gdtr      *gdtr;
-    struct gdt_entry *gdt;
-#endif      /* defined(__x86_64__) */
-};
-
-/*
- * Sets arch specifics to their
- * defaults.
- */
-#if defined(__x86_64__)
-#define DEFAULT_PROCESSOR_MACHDEP           \
-            {                               \
-                .gdtr = &g_early_gdtr,      \
-                .gdt  = &g_dmmy_gdt[0]      \
-            }
-#endif      /* defined(__x86_64__) */
-
-struct processor {
-    struct processor_machdep machdep;
-};
-
-__weak void processor_init(struct processor *processor);
-__weak void interrupts_init(struct processor *processor);
-
+void processor_init(void);
 void processor_halt(void);
 
 #endif  /* defined(_KERNEL) */
diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index e77b2ce..0e8d4b5 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -40,10 +40,6 @@
 __KERNEL_META("$Vega$: init_main.c, Ian Marco Moffett, "
               "Where the Vega kernel first starts up");
 
-static struct processor bsp = {
-    .machdep = DEFAULT_PROCESSOR_MACHDEP
-};
-
 void
 main(void)
 {
@@ -55,7 +51,7 @@ main(void)
             VEGA_ARCH, VEGA_VERSION, VEGA_BUILDDATE,
             VEGA_BUILDBRANCH);
 
-    processor_init(&bsp);
+    processor_init();
     vm_physseg_init();
 
     acpi_init();
-- 
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