diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.c | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.c new file mode 100644 index 000000000..88bc890f8 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.c @@ -0,0 +1,465 @@ +/* + * Copyright (C) 2010 Francisco Jerez. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ +#include "nv04.h" +#include "fbmem.h" + +#include <subdev/bios.h> +#include <subdev/bios/init.h> +#include <subdev/bios/pll.h> +#include <subdev/clk/pll.h> +#include <subdev/vga.h> + +static void +nv04_devinit_meminit(struct nvkm_devinit *init) +{ + struct nvkm_subdev *subdev = &init->subdev; + struct nvkm_device *device = subdev->device; + u32 patt = 0xdeadbeef; + struct io_mapping *fb; + int i; + + /* Map the framebuffer aperture */ + fb = fbmem_init(device); + if (!fb) { + nvkm_error(subdev, "failed to map fb\n"); + return; + } + + /* Sequencer and refresh off */ + nvkm_wrvgas(device, 0, 1, nvkm_rdvgas(device, 0, 1) | 0x20); + nvkm_mask(device, NV04_PFB_DEBUG_0, 0, NV04_PFB_DEBUG_0_REFRESH_OFF); + + nvkm_mask(device, 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) { + nvkm_mask(device, NV04_PFB_BOOT_0, + NV04_PFB_BOOT_0_RAM_TYPE, + NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_16MBIT); + nvkm_mask(device, 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)) + nvkm_mask(device, 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)) { + nvkm_mask(device, 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)) + nvkm_mask(device, NV04_PFB_BOOT_0, + NV04_PFB_BOOT_0_RAM_AMOUNT, + NV04_PFB_BOOT_0_RAM_AMOUNT_8MB); + else + nvkm_mask(device, NV04_PFB_BOOT_0, + NV04_PFB_BOOT_0_RAM_AMOUNT, + NV04_PFB_BOOT_0_RAM_AMOUNT_4MB); + + nvkm_mask(device, 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)) { + nvkm_mask(device, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT, + NV04_PFB_BOOT_0_RAM_AMOUNT_8MB); + + } + + /* Refresh on, sequencer on */ + nvkm_mask(device, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0); + nvkm_wrvgas(device, 0, 1, nvkm_rdvgas(device, 0, 1) & ~0x20); + fbmem_fini(fb); +} + +static int +powerctrl_1_shift(int chip_version, int reg) +{ + int shift = -4; + + if (chip_version < 0x17 || chip_version == 0x1a || chip_version == 0x20) + return shift; + + switch (reg) { + case 0x680520: + shift += 4; fallthrough; + case 0x680508: + shift += 4; fallthrough; + case 0x680504: + shift += 4; fallthrough; + case 0x680500: + shift += 4; + } + + /* + * the shift for vpll regs is only used for nv3x chips with a single + * stage pll + */ + if (shift > 4 && (chip_version < 0x32 || chip_version == 0x35 || + chip_version == 0x36 || chip_version >= 0x40)) + shift = -4; + + return shift; +} + +void +setPLL_single(struct nvkm_devinit *init, u32 reg, + struct nvkm_pll_vals *pv) +{ + struct nvkm_device *device = init->subdev.device; + int chip_version = device->bios->version.chip; + uint32_t oldpll = nvkm_rd32(device, reg); + int oldN = (oldpll >> 8) & 0xff, oldM = oldpll & 0xff; + uint32_t pll = (oldpll & 0xfff80000) | pv->log2P << 16 | pv->NM1; + uint32_t saved_powerctrl_1 = 0; + int shift_powerctrl_1 = powerctrl_1_shift(chip_version, reg); + + if (oldpll == pll) + return; /* already set */ + + if (shift_powerctrl_1 >= 0) { + saved_powerctrl_1 = nvkm_rd32(device, 0x001584); + nvkm_wr32(device, 0x001584, + (saved_powerctrl_1 & ~(0xf << shift_powerctrl_1)) | + 1 << shift_powerctrl_1); + } + + if (oldM && pv->M1 && (oldN / oldM < pv->N1 / pv->M1)) + /* upclock -- write new post divider first */ + nvkm_wr32(device, reg, pv->log2P << 16 | (oldpll & 0xffff)); + else + /* downclock -- write new NM first */ + nvkm_wr32(device, reg, (oldpll & 0xffff0000) | pv->NM1); + + if ((chip_version < 0x17 || chip_version == 0x1a) && + chip_version != 0x11) + /* wait a bit on older chips */ + msleep(64); + nvkm_rd32(device, reg); + + /* then write the other half as well */ + nvkm_wr32(device, reg, pll); + + if (shift_powerctrl_1 >= 0) + nvkm_wr32(device, 0x001584, saved_powerctrl_1); +} + +static uint32_t +new_ramdac580(uint32_t reg1, bool ss, uint32_t ramdac580) +{ + bool head_a = (reg1 == 0x680508); + + if (ss) /* single stage pll mode */ + ramdac580 |= head_a ? 0x00000100 : 0x10000000; + else + ramdac580 &= head_a ? 0xfffffeff : 0xefffffff; + + return ramdac580; +} + +void +setPLL_double_highregs(struct nvkm_devinit *init, u32 reg1, + struct nvkm_pll_vals *pv) +{ + struct nvkm_device *device = init->subdev.device; + int chip_version = device->bios->version.chip; + bool nv3035 = chip_version == 0x30 || chip_version == 0x35; + uint32_t reg2 = reg1 + ((reg1 == 0x680520) ? 0x5c : 0x70); + uint32_t oldpll1 = nvkm_rd32(device, reg1); + uint32_t oldpll2 = !nv3035 ? nvkm_rd32(device, reg2) : 0; + uint32_t pll1 = (oldpll1 & 0xfff80000) | pv->log2P << 16 | pv->NM1; + uint32_t pll2 = (oldpll2 & 0x7fff0000) | 1 << 31 | pv->NM2; + uint32_t oldramdac580 = 0, ramdac580 = 0; + bool single_stage = !pv->NM2 || pv->N2 == pv->M2; /* nv41+ only */ + uint32_t saved_powerctrl_1 = 0, savedc040 = 0; + int shift_powerctrl_1 = powerctrl_1_shift(chip_version, reg1); + + /* model specific additions to generic pll1 and pll2 set up above */ + if (nv3035) { + pll1 = (pll1 & 0xfcc7ffff) | (pv->N2 & 0x18) << 21 | + (pv->N2 & 0x7) << 19 | 8 << 4 | (pv->M2 & 7) << 4; + pll2 = 0; + } + if (chip_version > 0x40 && reg1 >= 0x680508) { /* !nv40 */ + oldramdac580 = nvkm_rd32(device, 0x680580); + ramdac580 = new_ramdac580(reg1, single_stage, oldramdac580); + if (oldramdac580 != ramdac580) + oldpll1 = ~0; /* force mismatch */ + if (single_stage) + /* magic value used by nvidia in single stage mode */ + pll2 |= 0x011f; + } + if (chip_version > 0x70) + /* magic bits set by the blob (but not the bios) on g71-73 */ + pll1 = (pll1 & 0x7fffffff) | (single_stage ? 0x4 : 0xc) << 28; + + if (oldpll1 == pll1 && oldpll2 == pll2) + return; /* already set */ + + if (shift_powerctrl_1 >= 0) { + saved_powerctrl_1 = nvkm_rd32(device, 0x001584); + nvkm_wr32(device, 0x001584, + (saved_powerctrl_1 & ~(0xf << shift_powerctrl_1)) | + 1 << shift_powerctrl_1); + } + + if (chip_version >= 0x40) { + int shift_c040 = 14; + + switch (reg1) { + case 0x680504: + shift_c040 += 2; fallthrough; + case 0x680500: + shift_c040 += 2; fallthrough; + case 0x680520: + shift_c040 += 2; fallthrough; + case 0x680508: + shift_c040 += 2; + } + + savedc040 = nvkm_rd32(device, 0xc040); + if (shift_c040 != 14) + nvkm_wr32(device, 0xc040, savedc040 & ~(3 << shift_c040)); + } + + if (oldramdac580 != ramdac580) + nvkm_wr32(device, 0x680580, ramdac580); + + if (!nv3035) + nvkm_wr32(device, reg2, pll2); + nvkm_wr32(device, reg1, pll1); + + if (shift_powerctrl_1 >= 0) + nvkm_wr32(device, 0x001584, saved_powerctrl_1); + if (chip_version >= 0x40) + nvkm_wr32(device, 0xc040, savedc040); +} + +void +setPLL_double_lowregs(struct nvkm_devinit *init, u32 NMNMreg, + struct nvkm_pll_vals *pv) +{ + /* When setting PLLs, there is a merry game of disabling and enabling + * various bits of hardware during the process. This function is a + * synthesis of six nv4x traces, nearly each card doing a subtly + * different thing. With luck all the necessary bits for each card are + * combined herein. Without luck it deviates from each card's formula + * so as to not work on any :) + */ + struct nvkm_device *device = init->subdev.device; + uint32_t Preg = NMNMreg - 4; + bool mpll = Preg == 0x4020; + uint32_t oldPval = nvkm_rd32(device, Preg); + uint32_t NMNM = pv->NM2 << 16 | pv->NM1; + uint32_t Pval = (oldPval & (mpll ? ~(0x77 << 16) : ~(7 << 16))) | + 0xc << 28 | pv->log2P << 16; + uint32_t saved4600 = 0; + /* some cards have different maskc040s */ + uint32_t maskc040 = ~(3 << 14), savedc040; + bool single_stage = !pv->NM2 || pv->N2 == pv->M2; + + if (nvkm_rd32(device, NMNMreg) == NMNM && (oldPval & 0xc0070000) == Pval) + return; + + if (Preg == 0x4000) + maskc040 = ~0x333; + if (Preg == 0x4058) + maskc040 = ~(0xc << 24); + + if (mpll) { + struct nvbios_pll info; + uint8_t Pval2; + + if (nvbios_pll_parse(device->bios, Preg, &info)) + return; + + Pval2 = pv->log2P + info.bias_p; + if (Pval2 > info.max_p) + Pval2 = info.max_p; + Pval |= 1 << 28 | Pval2 << 20; + + saved4600 = nvkm_rd32(device, 0x4600); + nvkm_wr32(device, 0x4600, saved4600 | 8 << 28); + } + if (single_stage) + Pval |= mpll ? 1 << 12 : 1 << 8; + + nvkm_wr32(device, Preg, oldPval | 1 << 28); + nvkm_wr32(device, Preg, Pval & ~(4 << 28)); + if (mpll) { + Pval |= 8 << 20; + nvkm_wr32(device, 0x4020, Pval & ~(0xc << 28)); + nvkm_wr32(device, 0x4038, Pval & ~(0xc << 28)); + } + + savedc040 = nvkm_rd32(device, 0xc040); + nvkm_wr32(device, 0xc040, savedc040 & maskc040); + + nvkm_wr32(device, NMNMreg, NMNM); + if (NMNMreg == 0x4024) + nvkm_wr32(device, 0x403c, NMNM); + + nvkm_wr32(device, Preg, Pval); + if (mpll) { + Pval &= ~(8 << 20); + nvkm_wr32(device, 0x4020, Pval); + nvkm_wr32(device, 0x4038, Pval); + nvkm_wr32(device, 0x4600, saved4600); + } + + nvkm_wr32(device, 0xc040, savedc040); + + if (mpll) { + nvkm_wr32(device, 0x4020, Pval & ~(1 << 28)); + nvkm_wr32(device, 0x4038, Pval & ~(1 << 28)); + } +} + +int +nv04_devinit_pll_set(struct nvkm_devinit *devinit, u32 type, u32 freq) +{ + struct nvkm_subdev *subdev = &devinit->subdev; + struct nvkm_bios *bios = subdev->device->bios; + struct nvkm_pll_vals pv; + struct nvbios_pll info; + int cv = bios->version.chip; + int N1, M1, N2, M2, P; + int ret; + + ret = nvbios_pll_parse(bios, type > 0x405c ? type : type - 4, &info); + if (ret) + return ret; + + ret = nv04_pll_calc(subdev, &info, freq, &N1, &M1, &N2, &M2, &P); + if (!ret) + return -EINVAL; + + pv.refclk = info.refclk; + pv.N1 = N1; + pv.M1 = M1; + pv.N2 = N2; + pv.M2 = M2; + pv.log2P = P; + + if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 || + cv >= 0x40) { + if (type > 0x405c) + setPLL_double_highregs(devinit, type, &pv); + else + setPLL_double_lowregs(devinit, type, &pv); + } else + setPLL_single(devinit, type, &pv); + + return 0; +} + +int +nv04_devinit_post(struct nvkm_devinit *init, bool execute) +{ + return nvbios_post(&init->subdev, execute); +} + +void +nv04_devinit_preinit(struct nvkm_devinit *base) +{ + struct nv04_devinit *init = nv04_devinit(base); + struct nvkm_subdev *subdev = &init->base.subdev; + struct nvkm_device *device = subdev->device; + + /* make i2c busses accessible */ + nvkm_mask(device, 0x000200, 0x00000001, 0x00000001); + + /* unslave crtcs */ + if (init->owner < 0) + init->owner = nvkm_rdvgaowner(device); + nvkm_wrvgaowner(device, 0); + + if (!init->base.post) { + u32 htotal = nvkm_rdvgac(device, 0, 0x06); + htotal |= (nvkm_rdvgac(device, 0, 0x07) & 0x01) << 8; + htotal |= (nvkm_rdvgac(device, 0, 0x07) & 0x20) << 4; + htotal |= (nvkm_rdvgac(device, 0, 0x25) & 0x01) << 10; + htotal |= (nvkm_rdvgac(device, 0, 0x41) & 0x01) << 11; + if (!htotal) { + nvkm_debug(subdev, "adaptor not initialised\n"); + init->base.post = true; + } + } +} + +void * +nv04_devinit_dtor(struct nvkm_devinit *base) +{ + struct nv04_devinit *init = nv04_devinit(base); + /* restore vga owner saved at first init */ + nvkm_wrvgaowner(init->base.subdev.device, init->owner); + return init; +} + +int +nv04_devinit_new_(const struct nvkm_devinit_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_devinit **pinit) +{ + struct nv04_devinit *init; + + if (!(init = kzalloc(sizeof(*init), GFP_KERNEL))) + return -ENOMEM; + *pinit = &init->base; + + nvkm_devinit_ctor(func, device, type, inst, &init->base); + init->owner = -1; + return 0; +} + +static const struct nvkm_devinit_func +nv04_devinit = { + .dtor = nv04_devinit_dtor, + .preinit = nv04_devinit_preinit, + .post = nv04_devinit_post, + .meminit = nv04_devinit_meminit, + .pll_set = nv04_devinit_pll_set, +}; + +int +nv04_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_devinit **pinit) +{ + return nv04_devinit_new_(&nv04_devinit, device, type, inst, pinit); +} |