From 4718125192875085e6b1104e8286dbda7d4db682 Mon Sep 17 00:00:00 2001 From: Mark Cave-Ayland Date: Sat, 5 Mar 2022 15:55:22 +0000 Subject: [PATCH] macfb: don't use special irq_state and irq_mask variables in MacfbState MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The current IRQ state and IRQ mask are handled exactly the same as standard register accesses, so store these values directly in the regs array rather than having separate variables for them. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Laurent Vivier Message-Id: <20220305155530.9265-3-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland --- hw/display/macfb.c | 15 +++++++-------- include/hw/display/macfb.h | 2 -- 2 files changed, 7 insertions(+), 10 deletions(-) diff --git a/hw/display/macfb.c b/hw/display/macfb.c index 66ceacf1ae..fb54b460c1 100644 --- a/hw/display/macfb.c +++ b/hw/display/macfb.c @@ -476,7 +476,8 @@ static void macfb_update_display(void *opaque) static void macfb_update_irq(MacfbState *s) { - uint32_t irq_state = s->irq_state & s->irq_mask; + uint32_t irq_state = s->regs[DAFB_INTR_STAT >> 2] & + s->regs[DAFB_INTR_MASK >> 2]; if (irq_state) { qemu_irq_raise(s->irq); @@ -496,7 +497,7 @@ static void macfb_vbl_timer(void *opaque) MacfbState *s = opaque; int64_t next_vbl; - s->irq_state |= DAFB_INTR_VBL; + s->regs[DAFB_INTR_STAT >> 2] |= DAFB_INTR_VBL; macfb_update_irq(s); /* 60 Hz irq */ @@ -530,10 +531,8 @@ static uint64_t macfb_ctrl_read(void *opaque, case DAFB_MODE_VADDR2: case DAFB_MODE_CTRL1: case DAFB_MODE_CTRL2: - val = s->regs[addr >> 2]; - break; case DAFB_INTR_STAT: - val = s->irq_state; + val = s->regs[addr >> 2]; break; case DAFB_MODE_SENSE: val = macfb_sense_read(s); @@ -568,7 +567,7 @@ static void macfb_ctrl_write(void *opaque, macfb_sense_write(s, val); break; case DAFB_INTR_MASK: - s->irq_mask = val; + s->regs[addr >> 2] = val; if (val & DAFB_INTR_VBL) { next_vbl = macfb_next_vbl(); timer_mod(s->vbl_timer, next_vbl); @@ -577,12 +576,12 @@ static void macfb_ctrl_write(void *opaque, } break; case DAFB_INTR_CLEAR: - s->irq_state &= ~DAFB_INTR_VBL; + s->regs[DAFB_INTR_STAT >> 2] &= ~DAFB_INTR_VBL; macfb_update_irq(s); break; case DAFB_RESET: s->palette_current = 0; - s->irq_state &= ~DAFB_INTR_VBL; + s->regs[DAFB_INTR_STAT >> 2] &= ~DAFB_INTR_VBL; macfb_update_irq(s); break; case DAFB_LUT: diff --git a/include/hw/display/macfb.h b/include/hw/display/macfb.h index e52775aa21..6d9f0f7869 100644 --- a/include/hw/display/macfb.h +++ b/include/hw/display/macfb.h @@ -66,8 +66,6 @@ typedef struct MacfbState { uint32_t regs[MACFB_NUM_REGS]; MacFbMode *mode; - uint32_t irq_state; - uint32_t irq_mask; QEMUTimer *vbl_timer; qemu_irq irq; } MacfbState; -- 2.30.2