diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c new file mode 100644 index 0000000..7a72d93 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/devinit/nv04.c @@ -0,0 +1,189 @@ +/* + * 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 <subdev/devinit.h> +#include <subdev/vga.h> + +#include "fbmem.h" + +struct nv04_devinit_priv { + struct nouveau_devinit base; + int owner; +}; + +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)->pdev); + 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 int +nv04_devinit_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nv04_devinit_priv *priv; + int ret; + + ret = nouveau_devinit_create(parent, engine, oclass, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + priv->base.meminit = nv04_devinit_meminit; + priv->owner = -1; + return 0; +} + +void +nv04_devinit_dtor(struct nouveau_object *object) +{ + struct nv04_devinit_priv *priv = (void *)object; + + /* restore vga owner saved at first init, and lock crtc regs */ + nv_wrvgaowner(priv, priv->owner); + nv_lockvgac(priv, true); + + nouveau_devinit_destroy(&priv->base); +} + +int +nv04_devinit_init(struct nouveau_object *object) +{ + struct nv04_devinit_priv *priv = (void *)object; + + if (!priv->base.post) { + u32 htotal = nv_rdvgac(priv, 0, 0x06); + htotal |= (nv_rdvgac(priv, 0, 0x07) & 0x01) << 8; + htotal |= (nv_rdvgac(priv, 0, 0x07) & 0x20) << 4; + htotal |= (nv_rdvgac(priv, 0, 0x25) & 0x01) << 10; + htotal |= (nv_rdvgac(priv, 0, 0x41) & 0x01) << 11; + if (!htotal) { + nv_info(priv, "adaptor not initialised\n"); + priv->base.post = true; + } + } + + return nouveau_devinit_init(&priv->base); +} + +int +nv04_devinit_fini(struct nouveau_object *object, bool suspend) +{ + struct nv04_devinit_priv *priv = (void *)object; + + /* make i2c busses accessible */ + nv_mask(priv, 0x000200, 0x00000001, 0x00000001); + + /* unlock extended vga crtc regs, and unslave crtcs */ + nv_lockvgac(priv, false); + if (priv->owner < 0) + priv->owner = nv_rdvgaowner(priv); + nv_wrvgaowner(priv, 0); + + return nouveau_devinit_fini(&priv->base, suspend); +} + +struct nouveau_oclass +nv04_devinit_oclass = { + .handle = NV_SUBDEV(DEVINIT, 0x04), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nv04_devinit_ctor, + .dtor = nv04_devinit_dtor, + .init = nv04_devinit_init, + .fini = nv04_devinit_fini, + }, +}; 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