diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/engine/disp/vga.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/disp/vga.c | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/vga.c b/drivers/gpu/drm/nouveau/core/engine/disp/vga.c deleted file mode 100644 index 8836c3c..0000000 --- a/drivers/gpu/drm/nouveau/core/engine/disp/vga.c +++ /dev/null @@ -1,220 +0,0 @@ -/* - * Copyright 2012 Red Hat Inc. - * - * 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 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 HOLDER(S) OR AUTHOR(S) 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. - * - * Authors: Ben Skeggs - */ - -#include <core/subdev.h> -#include <core/device.h> -#include <subdev/vga.h> - -u8 -nv_rdport(void *obj, int head, u16 port) -{ - struct nouveau_device *device = nv_device(obj); - - if (device->card_type >= NV_50) - return nv_rd08(obj, 0x601000 + port); - - if (port == 0x03c0 || port == 0x03c1 || /* AR */ - port == 0x03c2 || port == 0x03da || /* INP0 */ - port == 0x03d4 || port == 0x03d5) /* CR */ - return nv_rd08(obj, 0x601000 + (head * 0x2000) + port); - - if (port == 0x03c2 || port == 0x03cc || /* MISC */ - port == 0x03c4 || port == 0x03c5 || /* SR */ - port == 0x03ce || port == 0x03cf) { /* GR */ - if (device->card_type < NV_40) - head = 0; /* CR44 selects head */ - return nv_rd08(obj, 0x0c0000 + (head * 0x2000) + port); - } - - nv_error(obj, "unknown vga port 0x%04x\n", port); - return 0x00; -} - -void -nv_wrport(void *obj, int head, u16 port, u8 data) -{ - struct nouveau_device *device = nv_device(obj); - - if (device->card_type >= NV_50) - nv_wr08(obj, 0x601000 + port, data); - else - if (port == 0x03c0 || port == 0x03c1 || /* AR */ - port == 0x03c2 || port == 0x03da || /* INP0 */ - port == 0x03d4 || port == 0x03d5) /* CR */ - nv_wr08(obj, 0x601000 + (head * 0x2000) + port, data); - else - if (port == 0x03c2 || port == 0x03cc || /* MISC */ - port == 0x03c4 || port == 0x03c5 || /* SR */ - port == 0x03ce || port == 0x03cf) { /* GR */ - if (device->card_type < NV_40) - head = 0; /* CR44 selects head */ - nv_wr08(obj, 0x0c0000 + (head * 0x2000) + port, data); - } else - nv_error(obj, "unknown vga port 0x%04x\n", port); -} - -u8 -nv_rdvgas(void *obj, int head, u8 index) -{ - nv_wrport(obj, head, 0x03c4, index); - return nv_rdport(obj, head, 0x03c5); -} - -void -nv_wrvgas(void *obj, int head, u8 index, u8 value) -{ - nv_wrport(obj, head, 0x03c4, index); - nv_wrport(obj, head, 0x03c5, value); -} - -u8 -nv_rdvgag(void *obj, int head, u8 index) -{ - nv_wrport(obj, head, 0x03ce, index); - return nv_rdport(obj, head, 0x03cf); -} - -void -nv_wrvgag(void *obj, int head, u8 index, u8 value) -{ - nv_wrport(obj, head, 0x03ce, index); - nv_wrport(obj, head, 0x03cf, value); -} - -u8 -nv_rdvgac(void *obj, int head, u8 index) -{ - nv_wrport(obj, head, 0x03d4, index); - return nv_rdport(obj, head, 0x03d5); -} - -void -nv_wrvgac(void *obj, int head, u8 index, u8 value) -{ - nv_wrport(obj, head, 0x03d4, index); - nv_wrport(obj, head, 0x03d5, value); -} - -u8 -nv_rdvgai(void *obj, int head, u16 port, u8 index) -{ - if (port == 0x03c4) return nv_rdvgas(obj, head, index); - if (port == 0x03ce) return nv_rdvgag(obj, head, index); - if (port == 0x03d4) return nv_rdvgac(obj, head, index); - nv_error(obj, "unknown indexed vga port 0x%04x\n", port); - return 0x00; -} - -void -nv_wrvgai(void *obj, int head, u16 port, u8 index, u8 value) -{ - if (port == 0x03c4) nv_wrvgas(obj, head, index, value); - else if (port == 0x03ce) nv_wrvgag(obj, head, index, value); - else if (port == 0x03d4) nv_wrvgac(obj, head, index, value); - else nv_error(obj, "unknown indexed vga port 0x%04x\n", port); -} - -bool -nv_lockvgac(void *obj, bool lock) -{ - struct nouveau_device *dev = nv_device(obj); - - bool locked = !nv_rdvgac(obj, 0, 0x1f); - u8 data = lock ? 0x99 : 0x57; - if (dev->card_type < NV_50) - nv_wrvgac(obj, 0, 0x1f, data); - else - nv_wrvgac(obj, 0, 0x3f, data); - if (dev->chipset == 0x11) { - if (!(nv_rd32(obj, 0x001084) & 0x10000000)) - nv_wrvgac(obj, 1, 0x1f, data); - } - return locked; -} - -/* CR44 takes values 0 (head A), 3 (head B) and 4 (heads tied) - * it affects only the 8 bit vga io regs, which we access using mmio at - * 0xc{0,2}3c*, 0x60{1,3}3*, and 0x68{1,3}3d* - * in general, the set value of cr44 does not matter: reg access works as - * expected and values can be set for the appropriate head by using a 0x2000 - * offset as required - * however: - * a) pre nv40, the head B range of PRMVIO regs at 0xc23c* was not exposed and - * cr44 must be set to 0 or 3 for accessing values on the correct head - * through the common 0xc03c* addresses - * b) in tied mode (4) head B is programmed to the values set on head A, and - * access using the head B addresses can have strange results, ergo we leave - * tied mode in init once we know to what cr44 should be restored on exit - * - * the owner parameter is slightly abused: - * 0 and 1 are treated as head values and so the set value is (owner * 3) - * other values are treated as literal values to set - */ -u8 -nv_rdvgaowner(void *obj) -{ - if (nv_device(obj)->card_type < NV_50) { - if (nv_device(obj)->chipset == 0x11) { - u32 tied = nv_rd32(obj, 0x001084) & 0x10000000; - if (tied == 0) { - u8 slA = nv_rdvgac(obj, 0, 0x28) & 0x80; - u8 tvA = nv_rdvgac(obj, 0, 0x33) & 0x01; - u8 slB = nv_rdvgac(obj, 1, 0x28) & 0x80; - u8 tvB = nv_rdvgac(obj, 1, 0x33) & 0x01; - if (slA && !tvA) return 0x00; - if (slB && !tvB) return 0x03; - if (slA) return 0x00; - if (slB) return 0x03; - return 0x00; - } - return 0x04; - } - - return nv_rdvgac(obj, 0, 0x44); - } - - nv_error(obj, "rdvgaowner after nv4x\n"); - return 0x00; -} - -void -nv_wrvgaowner(void *obj, u8 select) -{ - if (nv_device(obj)->card_type < NV_50) { - u8 owner = (select == 1) ? 3 : select; - if (nv_device(obj)->chipset == 0x11) { - /* workaround hw lockup bug */ - nv_rdvgac(obj, 0, 0x1f); - nv_rdvgac(obj, 1, 0x1f); - } - - nv_wrvgac(obj, 0, 0x44, owner); - - if (nv_device(obj)->chipset == 0x11) { - nv_wrvgac(obj, 0, 0x2e, owner); - nv_wrvgac(obj, 0, 0x2e, owner); - } - } else - nv_error(obj, "wrvgaowner after nv4x\n"); -} |