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Merge pull request #84 from MoochMcGee/master

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Add in NV4 context switching
This commit is contained in:
OBattler
2017-01-18 23:06:19 +01:00
committed by GitHub
parent 4dba966872 401520661d
commit 7c7ffbf872
1 changed files with 58 additions and 1 deletions
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59
src/vid_nv_riva128.c
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@@ -151,6 +151,9 @@ typedef struct riva128_t
uint32_t fifo_enable;
uint32_t fifo_st2_addr;
uint32_t fifo_st2_data;
uint32_t uclip_xmin, uclip_ymin, uclip_xmax, uclip_ymax;
uint32_t oclip_xmin, oclip_ymin, oclip_xmax, oclip_ymax;
@@ -226,6 +229,9 @@ const char* riva128_pfifo_interrupts[32] =
"CACHE_ERROR","","","","RUNOUT","","","","RUNOUT_OVERFLOW","","","","DMA_PUSHER","","","","DMA_PTE","","","","","","","","","","","","","","",""
};
static uint32_t riva128_ramht_lookup(uint32_t handle, void *p);
static void riva128_pgraph_volatile_reset(void *p);
static uint8_t riva128_pci_read(int func, int addr, void *p);
static void riva128_pci_write(int func, int addr, uint8_t val, void *p);
@@ -965,6 +971,50 @@ static uint8_t riva128_pextdev_read(uint32_t addr, void *p)
return ret;
}
static void rivatnt_pgraph_ctx_switch(uint32_t addr, uint32_t val, void *p)
{
riva128_t *riva128 = (riva128_t *)p;
svga_t *svga = &riva128->svga;
if(!(riva128->fifo_st2_addr & 1)) return;
unsigned old_subc = (riva128->ctx_user >> 13) & 7;
unsigned new_subc = (riva128->fifo_st2_addr >> 12) & 7;
unsigned mthd = (riva128->fifo_st2_addr >> 1) & 0x7ff;
riva128->fifo_st2_addr &= ~1;
unsigned do_ctx_switch = mthd == 0;
if(old_subc != new_subc || do_ctx_switch)
{
if(do_ctx_switch) riva128->ctx_cache[new_subc][3] = riva128->fifo_st2_data & 0xffff;
uint32_t ctx_mask = 0x0303f0ff;
unsigned reload = (riva128->debug[1] >> 15) & 1;
if(reload || do_ctx_switch)
{
uint32_t instance = riva128_ramht_lookup(val, riva128);
riva128->ctx_cache[new_subc][0] = riva128->pramin[(instance >> 2)] & ctx_mask;
riva128->ctx_cache[new_subc][1] = riva128->pramin[(instance >> 2) + 1] & 0xffff3f03;
riva128->ctx_cache[new_subc][2] = riva128->pramin[(instance >> 2) + 2];
riva128->ctx_cache[new_subc][4] = riva128->pramin[(instance >> 2) + 3];
}
unsigned reset = (riva128->debug[2] >> 28) & 1;
if(reset)
{
riva128->debug[1] |= 1;
riva128_pgraph_volatile_reset(riva128);
}
else riva128->debug[1] &= ~1;
if(riva128->debug[1] & 0x100000)
{
for(int i = 0; i < 5; i++) riva128->ctx_switch[i] = riva128->ctx_cache[new_subc][i];
}
}
}
static uint8_t riva128_pgraph_read(uint32_t addr, void *p)
{
riva128_t *riva128 = (riva128_t *)p;
@@ -1366,6 +1416,13 @@ static void riva128_pgraph_write(uint32_t addr, uint32_t val, void *p)
case 0x40008c:
riva128->pgraph.debug[3] = val & ((riva128->card_id == 0x04) ? 0x11ffff33 : 0xfbffff73);
break;
case 0x400754:
riva128->pgraph.fifo_st2_addr = val;
break;
case 0x400758:
riva128->pgraph.fifo_st2_data = val;
rivatnt_pgraph_ctx_switch(riva128);
break;
}
}
@@ -1555,7 +1612,7 @@ static void riva128_puller_exec_method(int chanid, int subchanid, int offset, ui
if(riva128->card_id == 0x03)
{
uint32_t tmp = riva128_ramht_lookup(val, riva128);
riva128->pgraph.instance = (tmp & 0xffff) << 4;
riva128->pgraph.instance = (tmp & 0xffff) << 2;
unsigned old_subc = (riva128->pgraph.ctx_user >> 13) & 7;
unsigned new_subc = subchanid & 7;
if((old_subc != new_subc) || !offset)