From f3fbaf34e2b1459eab248c5f0180928e7861120b Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 26 Oct 2011 09:11:02 +1000 Subject: [PATCH] drm/nv50/pm: rewrite clock management, and switch to the new pm hooks This area is horrifically complicated on these chipsets, and it's likely we will need at least a few more tweaks yet. Oh yes, and it's completely disabled on IGPs for the moment. From traces, things look potentially different there yet again. Sigh... Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_drv.h | 1 + drivers/gpu/drm/nouveau/nouveau_perf.c | 1 + drivers/gpu/drm/nouveau/nouveau_pm.h | 7 +- drivers/gpu/drm/nouveau/nouveau_state.c | 6 +- drivers/gpu/drm/nouveau/nv50_pm.c | 658 ++++++++++++++++++++---- 5 files changed, 576 insertions(+), 97 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 067bda411a21..95892ce9b59c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -493,6 +493,7 @@ struct nouveau_pm_level { u32 copy; u32 daemon; u32 vdec; + u32 dom6; u32 unka0; /* nva3:nvc0 */ u32 hub01; /* nvc0- */ u32 hub06; /* nvc0- */ diff --git a/drivers/gpu/drm/nouveau/nouveau_perf.c b/drivers/gpu/drm/nouveau/nouveau_perf.c index da584e3a8f6a..6d49bdbf93d0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_perf.c +++ b/drivers/gpu/drm/nouveau/nouveau_perf.c @@ -302,6 +302,7 @@ nouveau_perf_init(struct drm_device *dev) perflvl->shader = ROM16(entry[10]) * 1000; perflvl->memory = ROM16(entry[12]) * 1000; perflvl->vdec = ROM16(entry[16]) * 1000; + perflvl->dom6 = ROM16(entry[20]) * 1000; break; case 0x40: #define subent(n) (ROM16(entry[perf[2] + ((n) * perf[3])]) & 0xfff) * 1000 diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.h b/drivers/gpu/drm/nouveau/nouveau_pm.h index 41050feb5b90..06df411ca5fe 100644 --- a/drivers/gpu/drm/nouveau/nouveau_pm.h +++ b/drivers/gpu/drm/nouveau/nouveau_pm.h @@ -60,10 +60,9 @@ int nv40_pm_pwm_get(struct drm_device *, struct dcb_gpio_entry *, u32*, u32*); int nv40_pm_pwm_set(struct drm_device *, struct dcb_gpio_entry *, u32, u32); /* nv50_pm.c */ -int nv50_pm_clock_get(struct drm_device *, u32 id); -void *nv50_pm_clock_pre(struct drm_device *, struct nouveau_pm_level *, - u32 id, int khz); -void nv50_pm_clock_set(struct drm_device *, void *); +int nv50_pm_clocks_get(struct drm_device *, struct nouveau_pm_level *); +void *nv50_pm_clocks_pre(struct drm_device *, struct nouveau_pm_level *); +int nv50_pm_clocks_set(struct drm_device *, void *); int nv50_pm_pwm_get(struct drm_device *, struct dcb_gpio_entry *, u32*, u32*); int nv50_pm_pwm_set(struct drm_device *, struct dcb_gpio_entry *, u32, u32); diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index 31bca1dca85d..6b4aaec648b9 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -356,9 +356,9 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) case 0xaa: case 0xac: case 0x50: - engine->pm.clock_get = nv50_pm_clock_get; - engine->pm.clock_pre = nv50_pm_clock_pre; - engine->pm.clock_set = nv50_pm_clock_set; + engine->pm.clocks_get = nv50_pm_clocks_get; + engine->pm.clocks_pre = nv50_pm_clocks_pre; + engine->pm.clocks_set = nv50_pm_clocks_set; break; default: engine->pm.clocks_get = nva3_pm_clocks_get; diff --git a/drivers/gpu/drm/nouveau/nv50_pm.c b/drivers/gpu/drm/nouveau/nv50_pm.c index 8a56880e4e71..bf9fd95c81c0 100644 --- a/drivers/gpu/drm/nouveau/nv50_pm.c +++ b/drivers/gpu/drm/nouveau/nv50_pm.c @@ -25,123 +25,601 @@ #include "drmP.h" #include "nouveau_drv.h" #include "nouveau_bios.h" +#include "nouveau_hw.h" #include "nouveau_pm.h" -struct nv50_pm_state { - struct nouveau_pm_level *perflvl; - struct pll_lims pll; - enum pll_types type; - int N, M, P; +enum clk_src { + clk_src_crystal, + clk_src_href, + clk_src_hclk, + clk_src_hclkm3, + clk_src_hclkm3d2, + clk_src_host, + clk_src_nvclk, + clk_src_sclk, + clk_src_mclk, + clk_src_vdec, + clk_src_dom6 }; +static u32 read_clk(struct drm_device *, enum clk_src); + +static u32 +read_div(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + + switch (dev_priv->chipset) { + case 0x50: /* it exists, but only has bit 31, not the dividers.. */ + case 0x84: + case 0x86: + case 0x98: + case 0xa0: + return nv_rd32(dev, 0x004700); + case 0x92: + case 0x94: + case 0x96: + return nv_rd32(dev, 0x004800); + default: + return 0x00000000; + } +} + +static u32 +read_pll_ref(struct drm_device *dev, u32 base) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + u32 coef, ref = read_clk(dev, clk_src_crystal); + u32 rsel = nv_rd32(dev, 0x00e18c); + int P, N, M, id; + + switch (dev_priv->chipset) { + case 0x50: + case 0xa0: + switch (base) { + case 0x4020: + case 0x4028: id = !!(rsel & 0x00000004); break; + case 0x4008: id = !!(rsel & 0x00000008); break; + case 0x4030: id = 0; break; + default: + NV_ERROR(dev, "ref: bad pll 0x%06x\n", base); + return 0; + } + + coef = nv_rd32(dev, 0x00e81c + (id * 0x0c)); + ref *= (coef & 0x01000000) ? 2 : 4; + P = (coef & 0x00070000) >> 16; + N = ((coef & 0x0000ff00) >> 8) + 1; + M = ((coef & 0x000000ff) >> 0) + 1; + break; + case 0x84: + case 0x86: + case 0x92: + coef = nv_rd32(dev, 0x00e81c); + P = (coef & 0x00070000) >> 16; + N = (coef & 0x0000ff00) >> 8; + M = (coef & 0x000000ff) >> 0; + break; + case 0x94: + case 0x96: + case 0x98: + rsel = nv_rd32(dev, 0x00c050); + switch (base) { + case 0x4020: rsel = (rsel & 0x00000003) >> 0; break; + case 0x4008: rsel = (rsel & 0x0000000c) >> 2; break; + case 0x4028: rsel = (rsel & 0x00001800) >> 11; break; + case 0x4030: rsel = 3; break; + default: + NV_ERROR(dev, "ref: bad pll 0x%06x\n", base); + return 0; + } + + switch (rsel) { + case 0: id = 1; break; + case 1: return read_clk(dev, clk_src_crystal); + case 2: return read_clk(dev, clk_src_href); + case 3: id = 0; break; + } + + coef = nv_rd32(dev, 0x00e81c + (id * 0x28)); + P = (nv_rd32(dev, 0x00e824 + (id * 0x28)) >> 16) & 7; + P += (coef & 0x00070000) >> 16; + N = (coef & 0x0000ff00) >> 8; + M = (coef & 0x000000ff) >> 0; + break; + default: + BUG_ON(1); + } + + if (M) + return (ref * N / M) >> P; + return 0; +} + +static u32 +read_pll(struct drm_device *dev, u32 base) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + u32 mast = nv_rd32(dev, 0x00c040); + u32 src = 0, ref = 0, clk = 0; + u32 ctrl, coef; + int N1, N2, M1, M2; + + switch (base) { + case 0x004028: + if (mast & 0x00100000) { + /* wtf, appears to only disable post-divider on nva0 */ + if (dev_priv->chipset != 0xa0) + return read_clk(dev, clk_src_dom6); + } + src = !!(mast & 0x00200000); + break; + case 0x004020: + src = !!(mast & 0x00400000); + break; + case 0x004008: + src = !!(mast & 0x00010000); + break; + case 0x004030: + src = !!(mast & 0x02000000); + break; + case 0x00e810: + ref = read_clk(dev, clk_src_crystal); + break; + default: + NV_ERROR(dev, "bad pll 0x%06x\n", base); + return 0; + } + + if (ref == 0) { + if (src) + ref = read_clk(dev, clk_src_href); + else + ref = read_pll_ref(dev, base); + } + + ctrl = nv_rd32(dev, base + 0); + coef = nv_rd32(dev, base + 4); + + N2 = (coef & 0xff000000) >> 24; + M2 = (coef & 0x00ff0000) >> 16; + N1 = (coef & 0x0000ff00) >> 8; + M1 = (coef & 0x000000ff); + if ((ctrl & 0x80000000) && M1) { + clk = ref * N1 / M1; + if ((ctrl & 0x40000100) == 0x40000000) { + if (M2) + clk = clk * N2 / M2; + else + clk = 0; + } + } + + return clk; +} + +static u32 +read_clk(struct drm_device *dev, enum clk_src src) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + u32 mast = nv_rd32(dev, 0x00c040); + u32 P = 0; + + switch (src) { + case clk_src_crystal: + return dev_priv->crystal; + case clk_src_href: + return 100000; /* PCIE reference clock */ + case clk_src_hclk: + return read_clk(dev, clk_src_href) * 27778 / 10000; + case clk_src_hclkm3: + return read_clk(dev, clk_src_hclk) * 3; + case clk_src_hclkm3d2: + return read_clk(dev, clk_src_hclk) * 3 / 2; + case clk_src_host: + switch (mast & 0x30000000) { + case 0x00000000: return read_clk(dev, clk_src_href); + case 0x10000000: break; + case 0x20000000: /* !0x50 */ + case 0x30000000: return read_clk(dev, clk_src_hclk); + } + break; + case clk_src_nvclk: + if (!(mast & 0x00100000)) + P = (nv_rd32(dev, 0x004028) & 0x00070000) >> 16; + switch (mast & 0x00000003) { + case 0x00000000: return read_clk(dev, clk_src_crystal) >> P; + case 0x00000001: return read_clk(dev, clk_src_dom6); + case 0x00000002: return read_pll(dev, 0x004020) >> P; + case 0x00000003: return read_pll(dev, 0x004028) >> P; + } + break; + case clk_src_sclk: + P = (nv_rd32(dev, 0x004020) & 0x00070000) >> 16; + switch (mast & 0x00000030) { + case 0x00000000: + if (mast & 0x00000080) + return read_clk(dev, clk_src_host) >> P; + return read_clk(dev, clk_src_crystal) >> P; + case 0x00000010: break; + case 0x00000020: return read_pll(dev, 0x004028) >> P; + case 0x00000030: return read_pll(dev, 0x004020) >> P; + } + break; + case clk_src_mclk: + P = (nv_rd32(dev, 0x004008) & 0x00070000) >> 16; + if (nv_rd32(dev, 0x004008) & 0x00000200) { + switch (mast & 0x0000c000) { + case 0x00000000: + return read_clk(dev, clk_src_crystal) >> P; + case 0x00008000: + case 0x0000c000: + return read_clk(dev, clk_src_href) >> P; + } + } else { + return read_pll(dev, 0x004008) >> P; + } + break; + case clk_src_vdec: + P = (read_div(dev) & 0x00000700) >> 8; + switch (dev_priv->chipset) { + case 0x84: + case 0x86: + case 0x92: + case 0x94: + case 0x96: + case 0xa0: + switch (mast & 0x00000c00) { + case 0x00000000: + if (dev_priv->chipset == 0xa0) /* wtf?? */ + return read_clk(dev, clk_src_nvclk) >> P; + return read_clk(dev, clk_src_crystal) >> P; + case 0x00000400: + return 0; + case 0x00000800: + if (mast & 0x01000000) + return read_pll(dev, 0x004028) >> P; + return read_pll(dev, 0x004030) >> P; + case 0x00000c00: + return read_clk(dev, clk_src_nvclk) >> P; + } + break; + case 0x98: + switch (mast & 0x00000c00) { + case 0x00000000: + return read_clk(dev, clk_src_nvclk) >> P; + case 0x00000400: + return 0; + case 0x00000800: + return read_clk(dev, clk_src_hclkm3d2) >> P; + case 0x00000c00: + return read_pll(dev, clk_src_mclk) >> P; + } + break; + } + break; + case clk_src_dom6: + switch (dev_priv->chipset) { + case 0x50: + case 0xa0: + return read_pll(dev, 0x00e810) >> 2; + case 0x84: + case 0x86: + case 0x92: + case 0x94: + case 0x96: + case 0x98: + P = (read_div(dev) & 0x00000007) >> 0; + switch (mast & 0x0c000000) { + case 0x00000000: return read_clk(dev, clk_src_href); + case 0x04000000: break; + case 0x08000000: return read_clk(dev, clk_src_hclk); + case 0x0c000000: + return read_clk(dev, clk_src_hclkm3) >> P; + } + break; + default: + break; + } + default: + break; + } + + NV_DEBUG(dev, "unknown clock source %d 0x%08x\n", src, mast); + return 0; +} + int -nv50_pm_clock_get(struct drm_device *dev, u32 id) +nv50_pm_clocks_get(struct drm_device *dev, struct nouveau_pm_level *perflvl) { - struct pll_lims pll; - int P, N, M, ret; - u32 reg0, reg1; + struct drm_nouveau_private *dev_priv = dev->dev_private; + if (dev_priv->chipset == 0xaa || + dev_priv->chipset == 0xac) + return 0; + + perflvl->core = read_clk(dev, clk_src_nvclk); + perflvl->shader = read_clk(dev, clk_src_sclk); + perflvl->memory = read_clk(dev, clk_src_mclk); + if (dev_priv->chipset != 0x50) { + perflvl->vdec = read_clk(dev, clk_src_vdec); + perflvl->dom6 = read_clk(dev, clk_src_dom6); + } - ret = get_pll_limits(dev, id, &pll); + return 0; +} + +struct nv50_pm_state { + u32 emast; + u32 nctrl; + u32 ncoef; + u32 sctrl; + u32 scoef; + + u32 amast; + u32 pdivs; + + u32 mscript; + u32 mctrl; + u32 mcoef; +}; + +static u32 +calc_pll(struct drm_device *dev, u32 reg, struct pll_lims *pll, + u32 clk, int *N1, int *M1, int *log2P) +{ + struct nouveau_pll_vals coef; + int ret; + + ret = get_pll_limits(dev, reg, pll); if (ret) - return ret; + return 0; + + pll->vco2.maxfreq = 0; + pll->refclk = read_pll_ref(dev, reg); + if (!pll->refclk) + return 0; + + ret = nouveau_calc_pll_mnp(dev, pll, clk, &coef); + if (ret == 0) + return 0; - reg0 = nv_rd32(dev, pll.reg + 0); - reg1 = nv_rd32(dev, pll.reg + 4); - - if ((reg0 & 0x80000000) == 0) { - if (id == PLL_SHADER) { - NV_DEBUG(dev, "Shader PLL is disabled. " - "Shader clock is twice the core\n"); - ret = nv50_pm_clock_get(dev, PLL_CORE); - if (ret > 0) - return ret << 1; - } else if (id == PLL_MEMORY) { - NV_DEBUG(dev, "Memory PLL is disabled. " - "Memory clock is equal to the ref_clk\n"); - return pll.refclk; + *N1 = coef.N1; + *M1 = coef.M1; + *log2P = coef.log2P; + return ret; +} + +static inline u32 +calc_div(u32 src, u32 target, int *div) +{ + u32 clk0 = src, clk1 = src; + for (*div = 0; *div <= 7; (*div)++) { + if (clk0 <= target) { + clk1 = clk0 << (*div ? 1 : 0); + break; } + clk0 >>= 1; } - P = (reg0 & 0x00070000) >> 16; - N = (reg1 & 0x0000ff00) >> 8; - M = (reg1 & 0x000000ff); + if (target - clk0 <= clk1 - target) + return clk0; + (*div)--; + return clk1; +} - return ((pll.refclk * N / M) >> P); +static inline u32 +clk_same(u32 a, u32 b) +{ + return ((a / 1000) == (b / 1000)); } void * -nv50_pm_clock_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl, - u32 id, int khz) +nv50_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl) { - struct nv50_pm_state *state; - int dummy, ret; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv50_pm_state *info; + struct pll_lims pll; + int ret = -EINVAL; + int N, M, P1, P2; + u32 clk, out; + + if (dev_priv->chipset == 0xaa || + dev_priv->chipset == 0xac) + return ERR_PTR(-ENODEV); - state = kzalloc(sizeof(*state), GFP_KERNEL); - if (!state) + info = kmalloc(sizeof(*info), GFP_KERNEL); + if (!info) return ERR_PTR(-ENOMEM); - state->type = id; - state->perflvl = perflvl; - ret = get_pll_limits(dev, id, &state->pll); - if (ret < 0) { - kfree(state); - return (ret == -ENOENT) ? NULL : ERR_PTR(ret); + /* core: for the moment at least, always use nvpll */ + clk = calc_pll(dev, 0x4028, &pll, perflvl->core, &N, &M, &P1); + if (clk == 0) + goto error; + + info->emast = 0x00000003; + info->nctrl = 0x80000000 | (P1 << 19) | (P1 << 16); + info->ncoef = (N << 8) | M; + + /* shader: tie to nvclk if possible, otherwise use spll. have to be + * very careful that the shader clock is at least twice the core, or + * some chipsets will be very unhappy. i expect most or all of these + * cases will be handled by tying to nvclk, but it's possible there's + * corners + */ + if (P1-- && perflvl->shader == (perflvl->core << 1)) { + info->emast |= 0x00000020; + info->sctrl = 0x00000000 | (P1 << 19) | (P1 << 16); + info->scoef = nv_rd32(dev, 0x004024); + } else { + clk = calc_pll(dev, 0x4020, &pll, perflvl->shader, &N, &M, &P1); + if (clk == 0) + goto error; + + info->emast |= 0x00000030; + info->sctrl = 0x80000000 | (P1 << 19) | (P1 << 16); + info->scoef = (N << 8) | M; } - ret = nv50_calc_pll(dev, &state->pll, khz, &state->N, &state->M, - &dummy, &dummy, &state->P); - if (ret < 0) { - kfree(state); - return ERR_PTR(ret); + /* memory: use pcie refclock if possible, otherwise use mpll */ + info->mscript = perflvl->memscript; + if (clk_same(perflvl->memory, read_clk(dev, clk_src_href))) { + info->mctrl = nv_rd32(dev, 0x4008) | 0x00000200; + info->mcoef = nv_rd32(dev, 0x400c); + } else + if (perflvl->memory) { + clk = calc_pll(dev, 0x4008, &pll, perflvl->memory, + &N, &M, &P1); + if (clk == 0) + goto error; + + info->mctrl = 0x80000000 | (P1 << 22) | (P1 << 16); + info->mctrl |= pll.log2p_bias << 19; + info->mcoef = (N << 8) | M; + } else { + info->mctrl = 0x00000000; } - return state; + /* vdec: avoid modifying xpll until we know exactly how the other + * clock domains work, i suspect at least some of them can also be + * tied to xpll... + */ + info->amast = info->pdivs = 0; + if (perflvl->vdec) { + /* see how close we can get using nvclk as a source */ + clk = calc_div(perflvl->core, perflvl->vdec, &P1); + + /* see how close we can get using xpll/hclk as a source */ + if (dev_priv->chipset != 0x98) + out = read_pll(dev, 0x004030); + else + out = read_clk(dev, clk_src_hclkm3d2); + out = calc_div(out, perflvl->vdec, &P2); + + /* select whichever gets us closest */ + if (abs((int)perflvl->vdec - clk) <= + abs((int)perflvl->vdec - out)) { + if (dev_priv->chipset != 0x98) + info->amast |= 0x00000c00; + else + info->amast |= 0x00000000; + info->pdivs |= P1 << 8; + } else { + info->amast |= 0x00000800; + info->pdivs |= P2 << 8; + } + } + + /* dom6: nfi what this is, but we're limited to various combinations + * of the host clock frequency + */ + if (clk_same(perflvl->dom6, read_clk(dev, clk_src_href))) { + info->amast |= 0x00000000; + info->pdivs |= read_div(dev) & 0x00000007; + } else + if (clk_same(perflvl->dom6, read_clk(dev, clk_src_hclk))) { + info->amast |= 0x08000000; + info->pdivs |= read_div(dev) & 0x00000007; + } else + if (perflvl->dom6) { + clk = read_clk(dev, clk_src_hclk) * 3; + clk = calc_div(clk, perflvl->dom6, &P1); + + info->amast |= 0x0c000000; + info->pdivs |= P1; + } + + + return info; +error: + kfree(info); + return ERR_PTR(ret); } -void -nv50_pm_clock_set(struct drm_device *dev, void *pre_state) +int +nv50_pm_clocks_set(struct drm_device *dev, void *data) { - struct nv50_pm_state *state = pre_state; - struct nouveau_pm_level *perflvl = state->perflvl; - u32 reg = state->pll.reg, tmp; - struct bit_entry BIT_M; - u16 script; - int N = state->N; - int M = state->M; - int P = state->P; - - if (state->type == PLL_MEMORY && perflvl->memscript && - bit_table(dev, 'M', &BIT_M) == 0 && - BIT_M.version == 1 && BIT_M.length >= 0x0b) { - script = ROM16(BIT_M.data[0x05]); - if (script) - nouveau_bios_run_init_table(dev, script, NULL, -1); - script = ROM16(BIT_M.data[0x07]); - if (script) - nouveau_bios_run_init_table(dev, script, NULL, -1); - script = ROM16(BIT_M.data[0x09]); - if (script) - nouveau_bios_run_init_table(dev, script, NULL, -1); - - nouveau_bios_run_init_table(dev, perflvl->memscript, NULL, -1); - } - - if (state->type == PLL_MEMORY) { - nv_wr32(dev, 0x100210, 0); - nv_wr32(dev, 0x1002dc, 1); - } - - tmp = nv_rd32(dev, reg + 0) & 0xfff8ffff; - tmp |= 0x80000000 | (P << 16); - nv_wr32(dev, reg + 0, tmp); - nv_wr32(dev, reg + 4, (N << 8) | M); - - if (state->type == PLL_MEMORY) { - nv_wr32(dev, 0x1002dc, 0); - nv_wr32(dev, 0x100210, 0x80000000); - } - - kfree(state); + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv50_pm_state *info = data; + struct bit_entry M; + int ret = 0; + + /* halt and idle execution engines */ + nv_mask(dev, 0x002504, 0x00000001, 0x00000001); + if (!nv_wait(dev, 0x002504, 0x00000010, 0x00000010)) + goto error; + + /* reclock vdec/dom6 */ + nv_mask(dev, 0x00c040, 0x00000c00, 0x00000000); + switch (dev_priv->chipset) { + case 0x92: + case 0x94: + case 0x96: + nv_mask(dev, 0x004800, 0x00000707, info->pdivs); + break; + default: + nv_mask(dev, 0x004700, 0x00000707, info->pdivs); + break; + } + nv_mask(dev, 0x00c040, 0x0c000c00, info->amast); + + /* core/shader: switch core to dom6, shader to hclk */ + if (dev_priv->chipset == 0x50) + nv_mask(dev, 0x00c040, 0x001000b0, 0x00100080); /* grrr! */ + else + nv_mask(dev, 0x00c040, 0x000000b3, 0x00000081); + nv_mask(dev, 0x004020, 0xc03f0100, info->sctrl); + nv_wr32(dev, 0x004024, info->scoef); + nv_mask(dev, 0x004028, 0xc03f0100, info->nctrl); + nv_wr32(dev, 0x00402c, info->ncoef); + nv_mask(dev, 0x00c040, 0x00100033, info->emast); + + /* memory */ + if (!info->mctrl) + goto resume; + + /* execute some scripts that do ??? from the vbios.. */ + if (!bit_table(dev, 'M', &M) && M.version == 1) { + if (M.length >= 6) + nouveau_bios_init_exec(dev, ROM16(M.data[5])); + if (M.length >= 8) + nouveau_bios_init_exec(dev, ROM16(M.data[7])); + if (M.length >= 10) + nouveau_bios_init_exec(dev, ROM16(M.data[9])); + nouveau_bios_init_exec(dev, info->mscript); + } + + /* disable display */ + nv_wr32(dev, 0x611200, 0x00003300); + udelay(100); + + /* prepare ram for reclocking */ + nv_wr32(dev, 0x1002d4, 0x00000001); /* precharge */ + nv_wr32(dev, 0x1002d0, 0x00000001); /* refresh */ + nv_wr32(dev, 0x1002d0, 0x00000001); /* refresh */ + nv_mask(dev, 0x100210, 0x80000000, 0x00000000); /* no auto-refresh */ + nv_wr32(dev, 0x1002dc, 0x00000001); /* enable self-refresh */ + + /* modify mpll */ + nv_mask(dev, 0x00c040, 0x0000c000, 0x0000c000); + nv_mask(dev, 0x004008, 0x81ff0200, 0x00000200 | info->mctrl); + nv_wr32(dev, 0x00400c, info->mcoef); + udelay(100); + nv_mask(dev, 0x004008, 0x81ff0200, info->mctrl); + + /* re-enable normal operation of memory controller */ + nv_wr32(dev, 0x1002dc, 0x00000000); + nv_mask(dev, 0x100210, 0x80000000, 0x80000000); + udelay(100); + + /* re-enable display */ + nv_wr32(dev, 0x611200, 0x00003330); + + goto resume; +error: + ret = -EBUSY; +resume: + nv_mask(dev, 0x002504, 0x00000001, 0x00000000); + return ret; } static int -- 2.20.1