diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_pm.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_pm.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_pm.c b/drivers/gpu/drm/nouveau/nvc0_pm.c deleted file mode 100644 index 929aded35cb..00000000000 --- a/drivers/gpu/drm/nouveau/nvc0_pm.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * Copyright 2011 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 "drmP.h" -#include "nouveau_drv.h" -#include "nouveau_bios.h" -#include "nouveau_pm.h" - -static u32 read_div(struct drm_device *, int, u32, u32); -static u32 read_pll(struct drm_device *, u32); - -static u32 -read_vco(struct drm_device *dev, u32 dsrc) -{ - u32 ssrc = nv_rd32(dev, dsrc); - if (!(ssrc & 0x00000100)) - return read_pll(dev, 0x00e800); - return read_pll(dev, 0x00e820); -} - -static u32 -read_pll(struct drm_device *dev, u32 pll) -{ - u32 ctrl = nv_rd32(dev, pll + 0); - u32 coef = nv_rd32(dev, pll + 4); - u32 P = (coef & 0x003f0000) >> 16; - u32 N = (coef & 0x0000ff00) >> 8; - u32 M = (coef & 0x000000ff) >> 0; - u32 sclk, doff; - - if (!(ctrl & 0x00000001)) - return 0; - - switch (pll & 0xfff000) { - case 0x00e000: - sclk = 27000; - P = 1; - break; - case 0x137000: - doff = (pll - 0x137000) / 0x20; - sclk = read_div(dev, doff, 0x137120, 0x137140); - break; - case 0x132000: - switch (pll) { - case 0x132000: - sclk = read_pll(dev, 0x132020); - break; - case 0x132020: - sclk = read_div(dev, 0, 0x137320, 0x137330); - break; - default: - return 0; - } - break; - default: - return 0; - } - - return sclk * N / M / P; -} - -static u32 -read_div(struct drm_device *dev, int doff, u32 dsrc, u32 dctl) -{ - u32 ssrc = nv_rd32(dev, dsrc + (doff * 4)); - u32 sctl = nv_rd32(dev, dctl + (doff * 4)); - - switch (ssrc & 0x00000003) { - case 0: - if ((ssrc & 0x00030000) != 0x00030000) - return 27000; - return 108000; - case 2: - return 100000; - case 3: - if (sctl & 0x80000000) { - u32 sclk = read_vco(dev, dsrc + (doff * 4)); - u32 sdiv = (sctl & 0x0000003f) + 2; - return (sclk * 2) / sdiv; - } - - return read_vco(dev, dsrc + (doff * 4)); - default: - return 0; - } -} - -static u32 -read_mem(struct drm_device *dev) -{ - u32 ssel = nv_rd32(dev, 0x1373f0); - if (ssel & 0x00000001) - return read_div(dev, 0, 0x137300, 0x137310); - return read_pll(dev, 0x132000); -} - -static u32 -read_clk(struct drm_device *dev, int clk) -{ - u32 sctl = nv_rd32(dev, 0x137250 + (clk * 4)); - u32 ssel = nv_rd32(dev, 0x137100); - u32 sclk, sdiv; - - if (ssel & (1 << clk)) { - if (clk < 7) - sclk = read_pll(dev, 0x137000 + (clk * 0x20)); - else - sclk = read_pll(dev, 0x1370e0); - sdiv = ((sctl & 0x00003f00) >> 8) + 2; - } else { - sclk = read_div(dev, clk, 0x137160, 0x1371d0); - sdiv = ((sctl & 0x0000003f) >> 0) + 2; - } - - if (sctl & 0x80000000) - return (sclk * 2) / sdiv; - return sclk; -} - -int -nvc0_pm_clocks_get(struct drm_device *dev, struct nouveau_pm_level *perflvl) -{ - perflvl->shader = read_clk(dev, 0x00); - perflvl->core = perflvl->shader / 2; - perflvl->memory = read_mem(dev); - perflvl->rop = read_clk(dev, 0x01); - perflvl->hub07 = read_clk(dev, 0x02); - perflvl->hub06 = read_clk(dev, 0x07); - perflvl->hub01 = read_clk(dev, 0x08); - perflvl->copy = read_clk(dev, 0x09); - perflvl->daemon = read_clk(dev, 0x0c); - perflvl->vdec = read_clk(dev, 0x0e); - return 0; -} |