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perf: fix core starvation

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boreddevnl
2026-03-22 21:04:50 +01:00
parent 5c199e028a
commit 4e8ea5acd2
4 changed files with 74 additions and 36 deletions
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52
src/sys/syscall.c
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@@ -215,6 +215,7 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
win->cursor_pos = 0;
win->data = proc;
win->font = NULL;
win->lock = SPINLOCK_INIT;
serial_write("Kernel: Dims initialized.\n");
@@ -269,7 +270,9 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
extern void graphics_set_render_target(uint32_t *buffer, int w, int h);
uint64_t rflags;
rflags = wm_lock_acquire();
bool use_wm_lock = (win->pixels == NULL);
if (use_wm_lock) rflags = wm_lock_acquire();
else rflags = spinlock_acquire_irqsave(&win->lock);
if (win->pixels) {
// Strict user-to-window relative clamping
@@ -289,7 +292,8 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
draw_rect(win->x + params[0], win->y + params[1], params[2], params[3], color);
}
wm_lock_release(rflags);
if (use_wm_lock) wm_lock_release(rflags);
else spinlock_release_irqrestore(&win->lock, rflags);
}
} else if (cmd == GUI_CMD_DRAW_ROUNDED_RECT_FILLED) {
Window *win = (Window *)arg2;
@@ -303,7 +307,9 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
extern void graphics_set_render_target(uint32_t *buffer, int w, int h);
uint64_t rflags;
rflags = wm_lock_acquire();
bool use_wm_lock = (win->pixels == NULL);
if (use_wm_lock) rflags = wm_lock_acquire();
else rflags = spinlock_acquire_irqsave(&win->lock);
if (win->pixels) {
int rx = (int)params[0]; int ry = (int)params[1];
@@ -321,7 +327,8 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
}
}
wm_lock_release(rflags);
if (use_wm_lock) wm_lock_release(rflags);
else spinlock_release_irqrestore(&win->lock, rflags);
}
} else if (cmd == GUI_CMD_DRAW_STRING) {
Window *win = (Window *)arg2;
@@ -344,7 +351,9 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
kernel_str[i] = 0;
uint64_t rflags;
rflags = wm_lock_acquire();
bool use_wm_lock = (win->pixels == NULL);
if (use_wm_lock) rflags = wm_lock_acquire();
else rflags = spinlock_acquire_irqsave(&win->lock);
ttf_font_t *font = win->font ? (ttf_font_t*)win->font : graphics_get_current_ttf();
@@ -380,7 +389,8 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
}
}
wm_lock_release(rflags);
if (use_wm_lock) wm_lock_release(rflags);
else spinlock_release_irqrestore(&win->lock, rflags);
}
} else if (cmd == 10) { // GUI_CMD_DRAW_STRING_BITMAP
Window *win = (Window *)arg2;
@@ -403,7 +413,9 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
kernel_str[i] = 0;
uint64_t rflags;
rflags = wm_lock_acquire();
bool use_wm_lock = (win->pixels == NULL);
if (use_wm_lock) rflags = wm_lock_acquire();
else rflags = spinlock_acquire_irqsave(&win->lock);
if (win->pixels) {
if (ux >= -100 && ux < win->w && uy >= -100 && uy < (win->h - 20)) {
@@ -415,7 +427,8 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
draw_string_bitmap(win->x + ux, win->y + uy, kernel_str, color);
}
wm_lock_release(rflags);
if (use_wm_lock) wm_lock_release(rflags);
else spinlock_release_irqrestore(&win->lock, rflags);
}
} else if (cmd == 11) { // GUI_CMD_DRAW_STRING_SCALED
Window *win = (Window *)arg2;
@@ -442,7 +455,9 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
kernel_str[i] = 0;
uint64_t rflags;
rflags = wm_lock_acquire();
bool use_wm_lock = (win->pixels == NULL);
if (use_wm_lock) rflags = wm_lock_acquire();
else rflags = spinlock_acquire_irqsave(&win->lock);
ttf_font_t *font = win->font ? (ttf_font_t*)win->font : graphics_get_current_ttf();
@@ -478,7 +493,8 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
}
}
wm_lock_release(rflags);
if (use_wm_lock) wm_lock_release(rflags);
else spinlock_release_irqrestore(&win->lock, rflags);
}
} else if (cmd == 18) { // GUI_CMD_DRAW_STRING_SCALED_SLOPED
Window *win = (Window *)arg2;
@@ -515,7 +531,9 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
kernel_str[i] = 0;
uint64_t rflags;
rflags = wm_lock_acquire();
bool use_wm_lock = (win->pixels == NULL);
if (use_wm_lock) rflags = wm_lock_acquire();
else rflags = spinlock_acquire_irqsave(&win->lock);
ttf_font_t *font = win->font ? (ttf_font_t*)win->font : graphics_get_current_ttf();
@@ -553,7 +571,8 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
}
}
wm_lock_release(rflags);
if (use_wm_lock) wm_lock_release(rflags);
else spinlock_release_irqrestore(&win->lock, rflags);
}
} else if (cmd == GUI_CMD_DRAW_IMAGE) {
Window *win = (Window *)arg2;
@@ -564,7 +583,9 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
for (int i = 0; i < 4; i++) params[i] = u_params[i];
uint64_t rflags;
rflags = wm_lock_acquire();
bool use_wm_lock = (win->pixels == NULL);
if (use_wm_lock) rflags = wm_lock_acquire();
else rflags = spinlock_acquire_irqsave(&win->lock);
if (win->pixels) {
int rx = (int)params[0]; int ry = (int)params[1];
@@ -599,7 +620,8 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
}
}
wm_lock_release(rflags);
if (use_wm_lock) wm_lock_release(rflags);
else spinlock_release_irqrestore(&win->lock, rflags);
}
} else if (cmd == GUI_CMD_MARK_DIRTY) {
uint64_t rflags = wm_lock_acquire();
@@ -611,8 +633,10 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
// Dual-buffer commit: copy pixels to comp_pixels
if (win->pixels && win->comp_pixels) {
uint64_t win_rflags = spinlock_acquire_irqsave(&win->lock);
extern void mem_memcpy(void *dest, const void *src, size_t len);
mem_memcpy(win->comp_pixels, win->pixels, (size_t)win->w * (win->h - 20) * 4);
spinlock_release_irqrestore(&win->lock, win_rflags);
}
wm_mark_dirty(win->x + (int)params[0], win->y + (int)params[1], (int)params[2], (int)params[3]);
}