static void
nv20_devinit_meminit(struct nouveau_devinit *devinit)
{
struct nv20_devinit_priv *priv = (void *)devinit;
struct nouveau_device *device = nv_device(priv);
uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900);
uint32_t amount, off;
struct io_mapping *fb;
/* Map the framebuffer aperture */
fb = fbmem_init(nv_device(priv)->pdev);
if (!fb) {
nv_error(priv, "failed to map fb\n");
return;
}
nv_wr32(priv, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
/* Allow full addressing */
nv_mask(priv, NV04_PFB_CFG0, 0, mask);
amount = nv_rd32(priv, 0x10020c);
for (off = amount; off > 0x2000000; off -= 0x2000000)
fbmem_poke(fb, off - 4, off);
amount = nv_rd32(priv, 0x10020c);
if (amount != fbmem_peek(fb, amount - 4))
/* IC missing - disable the upper half memory space. */
nv_mask(priv, NV04_PFB_CFG0, mask, 0);
fbmem_fini(fb);
}
static void
nv10_devinit_meminit(struct nouveau_devinit *devinit)
{
struct nv10_devinit_priv *priv = (void *)devinit;
const int mem_width[] = { 0x10, 0x00, 0x20 };
const int mem_width_count = nv_device(priv)->chipset >= 0x17 ? 3 : 2;
uint32_t patt = 0xdeadbeef;
struct io_mapping *fb;
int i, j, k;
/* Map the framebuffer aperture */
fb = fbmem_init(nv_device(priv)->pdev);
if (!fb) {
nv_error(priv, "failed to map fb\n");
return;
}
nv_wr32(priv, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
/* Probe memory bus width */
for (i = 0; i < mem_width_count; i++) {
nv_mask(priv, NV04_PFB_CFG0, 0x30, mem_width[i]);
for (j = 0; j < 4; j++) {
for (k = 0; k < 4; k++)
fbmem_poke(fb, 0x1c, 0);
fbmem_poke(fb, 0x1c, patt);
fbmem_poke(fb, 0x3c, 0);
if (fbmem_peek(fb, 0x1c) == patt)
goto mem_width_found;
}
}
mem_width_found:
patt <<= 1;
/* Probe amount of installed memory */
for (i = 0; i < 4; i++) {
int off = nv_rd32(priv, 0x10020c) - 0x100000;
fbmem_poke(fb, off, patt);
fbmem_poke(fb, 0, 0);
fbmem_peek(fb, 0);
fbmem_peek(fb, 0);
fbmem_peek(fb, 0);
fbmem_peek(fb, 0);
if (fbmem_peek(fb, off) == patt)
goto amount_found;
}
/* IC missing - disable the upper half memory space. */
nv_mask(priv, NV04_PFB_CFG0, 0x1000, 0);
amount_found:
fbmem_fini(fb);
}
static void
nv04_devinit_meminit(struct nouveau_devinit *devinit)
{
struct nv04_devinit_priv *priv = (void *)devinit;
u32 patt = 0xdeadbeef;
struct io_mapping *fb;
int i;
/* Map the framebuffer aperture */
fb = fbmem_init(nv_device(priv));
if (!fb) {
nv_error(priv, "failed to map fb\n");
return;
}
/* Sequencer and refresh off */
nv_wrvgas(priv, 0, 1, nv_rdvgas(priv, 0, 1) | 0x20);
nv_mask(priv, NV04_PFB_DEBUG_0, 0, NV04_PFB_DEBUG_0_REFRESH_OFF);
nv_mask(priv, NV04_PFB_BOOT_0, ~0,
NV04_PFB_BOOT_0_RAM_AMOUNT_16MB |
NV04_PFB_BOOT_0_RAM_WIDTH_128 |
NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT);
for (i = 0; i < 4; i++)
fbmem_poke(fb, 4 * i, patt);
fbmem_poke(fb, 0x400000, patt + 1);
if (fbmem_peek(fb, 0) == patt + 1) {
nv_mask(priv, NV04_PFB_BOOT_0,
NV04_PFB_BOOT_0_RAM_TYPE,
NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_16MBIT);
nv_mask(priv, NV04_PFB_DEBUG_0,
NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
for (i = 0; i < 4; i++)
fbmem_poke(fb, 4 * i, patt);
if ((fbmem_peek(fb, 0xc) & 0xffff) != (patt & 0xffff))
nv_mask(priv, NV04_PFB_BOOT_0,
NV04_PFB_BOOT_0_RAM_WIDTH_128 |
NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
} else
if ((fbmem_peek(fb, 0xc) & 0xffff0000) != (patt & 0xffff0000)) {
nv_mask(priv, NV04_PFB_BOOT_0,
NV04_PFB_BOOT_0_RAM_WIDTH_128 |
NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
} else
if (fbmem_peek(fb, 0) != patt) {
if (fbmem_readback(fb, 0x800000, patt))
nv_mask(priv, NV04_PFB_BOOT_0,
NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
else
nv_mask(priv, NV04_PFB_BOOT_0,
NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
nv_mask(priv, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_TYPE,
NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_8MBIT);
} else
if (!fbmem_readback(fb, 0x800000, patt)) {
nv_mask(priv, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
}
/* Refresh on, sequencer on */
nv_mask(priv, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
nv_wrvgas(priv, 0, 1, nv_rdvgas(priv, 0, 1) & ~0x20);
fbmem_fini(fb);
}
static void
nv05_devinit_meminit(struct nvkm_devinit *devinit)
{
static const u8 default_config_tab[][2] = {
{ 0x24, 0x00 },
{ 0x28, 0x00 },
{ 0x24, 0x01 },
{ 0x1f, 0x00 },
{ 0x0f, 0x00 },
{ 0x17, 0x00 },
{ 0x06, 0x00 },
{ 0x00, 0x00 }
};
struct nv04_devinit_priv *priv = (void *)devinit;
struct nvkm_bios *bios = nvkm_bios(priv);
struct io_mapping *fb;
u32 patt = 0xdeadbeef;
u16 data;
u8 strap, ramcfg[2];
int i, v;
/* Map the framebuffer aperture */
fb = fbmem_init(nv_device(priv));
if (!fb) {
nv_error(priv, "failed to map fb\n");
return;
}
strap = (nv_rd32(priv, 0x101000) & 0x0000003c) >> 2;
if ((data = bmp_mem_init_table(bios))) {
ramcfg[0] = nv_ro08(bios, data + 2 * strap + 0);
ramcfg[1] = nv_ro08(bios, data + 2 * strap + 1);
} else {
ramcfg[0] = default_config_tab[strap][0];
ramcfg[1] = default_config_tab[strap][1];
}
/* Sequencer off */
nv_wrvgas(priv, 0, 1, nv_rdvgas(priv, 0, 1) | 0x20);
if (nv_rd32(priv, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_UMA_ENABLE)
goto out;
nv_mask(priv, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
/* If present load the hardcoded scrambling table */
if (data) {
for (i = 0, data += 0x10; i < 8; i++, data += 4) {
u32 scramble = nv_ro32(bios, data);
nv_wr32(priv, NV04_PFB_SCRAMBLE(i), scramble);
}
}
/* Set memory type/width/length defaults depending on the straps */
nv_mask(priv, NV04_PFB_BOOT_0, 0x3f, ramcfg[0]);
if (ramcfg[1] & 0x80)
nv_mask(priv, NV04_PFB_CFG0, 0, NV04_PFB_CFG0_SCRAMBLE);
nv_mask(priv, NV04_PFB_CFG1, 0x700001, (ramcfg[1] & 1) << 20);
nv_mask(priv, NV04_PFB_CFG1, 0, 1);
/* Probe memory bus width */
for (i = 0; i < 4; i++)
fbmem_poke(fb, 4 * i, patt);
if (fbmem_peek(fb, 0xc) != patt)
nv_mask(priv, NV04_PFB_BOOT_0,
NV04_PFB_BOOT_0_RAM_WIDTH_128, 0);
/* Probe memory length */
v = nv_rd32(priv, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_RAM_AMOUNT;
if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_32MB &&
(!fbmem_readback(fb, 0x1000000, ++patt) ||
!fbmem_readback(fb, 0, ++patt)))
nv_mask(priv, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_16MB);
if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_16MB &&
!fbmem_readback(fb, 0x800000, ++patt))
nv_mask(priv, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
if (!fbmem_readback(fb, 0x400000, ++patt))
nv_mask(priv, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
out:
/* Sequencer on */
nv_wrvgas(priv, 0, 1, nv_rdvgas(priv, 0, 1) & ~0x20);
fbmem_fini(fb);
}
