diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nva3_pm.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nva3_pm.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/drivers/gpu/drm/nouveau/nva3_pm.c b/drivers/gpu/drm/nouveau/nva3_pm.c deleted file mode 100644 index e4b2b9e934b..00000000000 --- a/drivers/gpu/drm/nouveau/nva3_pm.c +++ /dev/null @@ -1,204 +0,0 @@ -/* - * Copyright 2010 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" - -/* This is actually a lot more complex than it appears here, but hopefully - * this should be able to deal with what the VBIOS leaves for us.. - * - * If not, well, I'll jump off that bridge when I come to it. - */ - -struct nva3_pm_state { - enum pll_types type; - u32 src0; - u32 src1; - u32 ctrl; - u32 coef; - u32 old_pnm; - u32 new_pnm; - u32 new_div; -}; - -static int -nva3_pm_pll_offset(u32 id) -{ - static const u32 pll_map[] = { - 0x00, PLL_CORE, - 0x01, PLL_SHADER, - 0x02, PLL_MEMORY, - 0x00, 0x00 - }; - const u32 *map = pll_map; - - while (map[1]) { - if (id == map[1]) - return map[0]; - map += 2; - } - - return -ENOENT; -} - -int -nva3_pm_clock_get(struct drm_device *dev, u32 id) -{ - u32 src0, src1, ctrl, coef; - struct pll_lims pll; - int ret, off; - int P, N, M; - - ret = get_pll_limits(dev, id, &pll); - if (ret) - return ret; - - off = nva3_pm_pll_offset(id); - if (off < 0) - return off; - - src0 = nv_rd32(dev, 0x4120 + (off * 4)); - src1 = nv_rd32(dev, 0x4160 + (off * 4)); - ctrl = nv_rd32(dev, pll.reg + 0); - coef = nv_rd32(dev, pll.reg + 4); - NV_DEBUG(dev, "PLL %02x: 0x%08x 0x%08x 0x%08x 0x%08x\n", - id, src0, src1, ctrl, coef); - - if (ctrl & 0x00000008) { - u32 div = ((src1 & 0x003c0000) >> 18) + 1; - return (pll.refclk * 2) / div; - } - - P = (coef & 0x003f0000) >> 16; - N = (coef & 0x0000ff00) >> 8; - M = (coef & 0x000000ff); - return pll.refclk * N / M / P; -} - -void * -nva3_pm_clock_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl, - u32 id, int khz) -{ - struct nva3_pm_state *pll; - struct pll_lims limits; - int N, M, P, diff; - int ret, off; - - ret = get_pll_limits(dev, id, &limits); - if (ret < 0) - return (ret == -ENOENT) ? NULL : ERR_PTR(ret); - - off = nva3_pm_pll_offset(id); - if (id < 0) - return ERR_PTR(-EINVAL); - - - pll = kzalloc(sizeof(*pll), GFP_KERNEL); - if (!pll) - return ERR_PTR(-ENOMEM); - pll->type = id; - pll->src0 = 0x004120 + (off * 4); - pll->src1 = 0x004160 + (off * 4); - pll->ctrl = limits.reg + 0; - pll->coef = limits.reg + 4; - - /* If target clock is within [-2, 3) MHz of a divisor, we'll - * use that instead of calculating MNP values - */ - pll->new_div = min((limits.refclk * 2) / (khz - 2999), 16); - if (pll->new_div) { - diff = khz - ((limits.refclk * 2) / pll->new_div); - if (diff < -2000 || diff >= 3000) - pll->new_div = 0; - } - - if (!pll->new_div) { - ret = nva3_calc_pll(dev, &limits, khz, &N, NULL, &M, &P); - if (ret < 0) - return ERR_PTR(ret); - - pll->new_pnm = (P << 16) | (N << 8) | M; - pll->new_div = 2 - 1; - } else { - pll->new_pnm = 0; - pll->new_div--; - } - - if ((nv_rd32(dev, pll->src1) & 0x00000101) != 0x00000101) - pll->old_pnm = nv_rd32(dev, pll->coef); - return pll; -} - -void -nva3_pm_clock_set(struct drm_device *dev, void *pre_state) -{ - struct nva3_pm_state *pll = pre_state; - u32 ctrl = 0; - - /* For the memory clock, NVIDIA will build a "script" describing - * the reclocking process and ask PDAEMON to execute it. - */ - if (pll->type == PLL_MEMORY) { - nv_wr32(dev, 0x100210, 0); - nv_wr32(dev, 0x1002dc, 1); - nv_wr32(dev, 0x004018, 0x00001000); - ctrl = 0x18000100; - } - - if (pll->old_pnm || !pll->new_pnm) { - nv_mask(dev, pll->src1, 0x003c0101, 0x00000101 | - (pll->new_div << 18)); - nv_wr32(dev, pll->ctrl, 0x0001001d | ctrl); - nv_mask(dev, pll->ctrl, 0x00000001, 0x00000000); - } - - if (pll->new_pnm) { - nv_mask(dev, pll->src0, 0x00000101, 0x00000101); - nv_wr32(dev, pll->coef, pll->new_pnm); - nv_wr32(dev, pll->ctrl, 0x0001001d | ctrl); - nv_mask(dev, pll->ctrl, 0x00000010, 0x00000000); - nv_mask(dev, pll->ctrl, 0x00020010, 0x00020010); - nv_wr32(dev, pll->ctrl, 0x00010015 | ctrl); - nv_mask(dev, pll->src1, 0x00000100, 0x00000000); - nv_mask(dev, pll->src1, 0x00000001, 0x00000000); - if (pll->type == PLL_MEMORY) - nv_wr32(dev, 0x4018, 0x10005000); - } else { - nv_mask(dev, pll->ctrl, 0x00000001, 0x00000000); - nv_mask(dev, pll->src0, 0x00000100, 0x00000000); - nv_mask(dev, pll->src0, 0x00000001, 0x00000000); - if (pll->type == PLL_MEMORY) - nv_wr32(dev, 0x4018, 0x1000d000); - } - - if (pll->type == PLL_MEMORY) { - nv_wr32(dev, 0x1002dc, 0); - nv_wr32(dev, 0x100210, 0x80000000); - } - - kfree(pll); -} - |
