#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_bios.h"
+#include "nouveau_hw.h"
#include "nouveau_pm.h"
+#include "nouveau_hwsq.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_src(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_ref(struct drm_device *dev, u32 base)
+{
+ u32 src, mast = nv_rd32(dev, 0x00c040);
+
+ switch (base) {
+ case 0x004028:
+ src = !!(mast & 0x00200000);
+ break;
+ case 0x004020:
+ src = !!(mast & 0x00400000);
+ break;
+ case 0x004008:
+ src = !!(mast & 0x00010000);
+ break;
+ case 0x004030:
+ src = !!(mast & 0x02000000);
+ break;
+ case 0x00e810:
+ return read_clk(dev, clk_src_crystal);
+ default:
+ NV_ERROR(dev, "bad pll 0x%06x\n", base);
+ return 0;
+ }
+
+ if (src)
+ return read_clk(dev, clk_src_href);
+ return read_pll_src(dev, base);
+}
+
+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 ctrl = nv_rd32(dev, base + 0);
+ u32 coef = nv_rd32(dev, base + 4);
+ u32 ref = read_pll_ref(dev, base);
+ u32 clk = 0;
+ int N1, N2, M1, M2;
+
+ if (base == 0x004028 && (mast & 0x00100000)) {
+ /* wtf, appears to only disable post-divider on nva0 */
+ if (dev_priv->chipset != 0xa0)
+ return read_clk(dev, clk_src_dom6);
+ }
+
+ 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_clk(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;
- ret = get_pll_limits(dev, id, &pll);
+ 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);
+ }
+
+ return 0;
+}
+
+struct nv50_pm_state {
+ struct hwsq_ucode mclk_hwsq;
+ u32 mscript;
+
+ u32 emast;
+ u32 nctrl;
+ u32 ncoef;
+ u32 sctrl;
+ u32 scoef;
+
+ u32 amast;
+ u32 pdivs;
+};
+
+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;
- reg0 = nv_rd32(dev, pll.reg + 0);
- reg1 = nv_rd32(dev, pll.reg + 4);
+ ret = nouveau_calc_pll_mnp(dev, pll, clk, &coef);
+ if (ret == 0)
+ return 0;
- 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;
+ }
+
+ if (target - clk0 <= clk1 - target)
+ return clk0;
+ (*div)--;
+ return clk1;
+}
+
+static inline u32
+clk_same(u32 a, u32 b)
+{
+ return ((a / 1000) == (b / 1000));
+}
+
+static int
+calc_mclk(struct drm_device *dev, u32 freq, struct hwsq_ucode *hwsq)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct pll_lims pll;
+ u32 mast = nv_rd32(dev, 0x00c040);
+ u32 ctrl = nv_rd32(dev, 0x004008);
+ u32 coef = nv_rd32(dev, 0x00400c);
+ u32 orig = ctrl;
+ u32 crtc_mask = 0;
+ int N, M, P;
+ int ret, i;
+
+ /* use pcie refclock if possible, otherwise use mpll */
+ ctrl &= ~0x81ff0200;
+ if (clk_same(freq, read_clk(dev, clk_src_href))) {
+ ctrl |= 0x00000200 | (pll.log2p_bias << 19);
+ } else {
+ ret = calc_pll(dev, 0x4008, &pll, freq, &N, &M, &P);
+ if (ret == 0)
+ return -EINVAL;
+
+ ctrl |= 0x80000000 | (P << 22) | (P << 16);
+ ctrl |= pll.log2p_bias << 19;
+ coef = (N << 8) | M;
+ }
+
+ mast &= ~0xc0000000; /* get MCLK_2 from HREF */
+ mast |= 0x0000c000; /* use MCLK_2 as MPLL_BYPASS clock */
+
+ /* determine active crtcs */
+ for (i = 0; i < 2; i++) {
+ if (nv_rd32(dev, NV50_PDISPLAY_CRTC_C(i, CLOCK)))
+ crtc_mask |= (1 << i);
+ }
+
+ /* build the ucode which will reclock the memory for us */
+ hwsq_init(hwsq);
+ if (crtc_mask) {
+ hwsq_op5f(hwsq, crtc_mask, 0x00); /* wait for scanout */
+ hwsq_op5f(hwsq, crtc_mask, 0x01); /* wait for vblank */
}
+ if (dev_priv->chipset >= 0x92)
+ hwsq_wr32(hwsq, 0x611200, 0x00003300); /* disable scanout */
+ hwsq_setf(hwsq, 0x10, 0); /* disable bus access */
+ hwsq_op5f(hwsq, 0x00, 0x01); /* no idea :s */
+
+ /* prepare memory controller */
+ hwsq_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge banks and idle */
+ hwsq_wr32(hwsq, 0x1002d0, 0x00000001); /* force refresh */
+ hwsq_wr32(hwsq, 0x100210, 0x00000000); /* stop the automatic refresh */
+ hwsq_wr32(hwsq, 0x1002dc, 0x00000001); /* start self refresh mode */
- P = (reg0 & 0x00070000) >> 16;
- N = (reg1 & 0x0000ff00) >> 8;
- M = (reg1 & 0x000000ff);
+ /* reclock memory */
+ hwsq_wr32(hwsq, 0xc040, mast);
+ hwsq_wr32(hwsq, 0x4008, orig | 0x00000200); /* bypass MPLL */
+ hwsq_wr32(hwsq, 0x400c, coef);
+ hwsq_wr32(hwsq, 0x4008, ctrl);
- return ((pll.refclk * N / M) >> P);
+ /* restart memory controller */
+ hwsq_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge banks and idle */
+ hwsq_wr32(hwsq, 0x1002dc, 0x00000000); /* stop self refresh mode */
+ hwsq_wr32(hwsq, 0x100210, 0x80000000); /* restart automatic refresh */
+ hwsq_usec(hwsq, 12); /* wait for the PLL to stabilize */
+
+ hwsq_usec(hwsq, 48); /* may be unnecessary: causes flickering */
+ hwsq_setf(hwsq, 0x10, 1); /* enable bus access */
+ hwsq_op5f(hwsq, 0x00, 0x00); /* no idea, reverse of 0x00, 0x01? */
+ if (dev_priv->chipset >= 0x92)
+ hwsq_wr32(hwsq, 0x611200, 0x00003330); /* enable scanout */
+ hwsq_fini(hwsq);
+ return 0;
}
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;
- state = kzalloc(sizeof(*state), GFP_KERNEL);
- if (!state)
+ if (dev_priv->chipset == 0xaa ||
+ dev_priv->chipset == 0xac)
+ return ERR_PTR(-ENODEV);
+
+ 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;
+ }
+
+ /* memory: build hwsq ucode which we'll use to reclock memory */
+ info->mclk_hwsq.len = 0;
+ if (perflvl->memory) {
+ clk = calc_mclk(dev, perflvl->memory, &info->mclk_hwsq);
+ if (clk < 0) {
+ ret = clk;
+ goto error;
+ }
+
+ info->mscript = perflvl->memscript;
+ }
+
+ /* 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 = nv_rd32(dev, 0x00c040);
+ info->pdivs = read_div(dev);
+ 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 */
+ info->amast &= ~0x00000c00;
+ info->pdivs &= ~0x00000700;
+ if (abs((int)perflvl->vdec - clk) <=
+ abs((int)perflvl->vdec - out)) {
+ if (dev_priv->chipset != 0x98)
+ info->amast |= 0x00000c00;
+ 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 (perflvl->dom6) {
+ info->amast &= ~0x0c000000;
+ if (clk_same(perflvl->dom6, read_clk(dev, clk_src_href))) {
+ info->amast |= 0x00000000;
+ } else
+ if (clk_same(perflvl->dom6, read_clk(dev, clk_src_hclk))) {
+ info->amast |= 0x08000000;
+ } else {
+ clk = read_clk(dev, clk_src_hclk) * 3;
+ clk = calc_div(clk, perflvl->dom6, &P1);
+
+ info->amast |= 0x0c000000;
+ info->pdivs = (info->pdivs & ~0x00000007) | P1;
+ }
}
- 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);
+ return info;
+error:
+ kfree(info);
+ return ERR_PTR(ret);
+}
+
+static int
+prog_mclk(struct drm_device *dev, struct hwsq_ucode *hwsq)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ u32 hwsq_data, hwsq_kick;
+ int i;
+
+ if (dev_priv->chipset < 0x90) {
+ hwsq_data = 0x001400;
+ hwsq_kick = 0x00000003;
+ } else {
+ hwsq_data = 0x080000;
+ hwsq_kick = 0x00000001;
}
- return state;
+ /* upload hwsq ucode */
+ nv_mask(dev, 0x001098, 0x00000008, 0x00000000);
+ nv_wr32(dev, 0x001304, 0x00000000);
+ for (i = 0; i < hwsq->len / 4; i++)
+ nv_wr32(dev, hwsq_data + (i * 4), hwsq->ptr.u32[i]);
+ nv_mask(dev, 0x001098, 0x00000018, 0x00000018);
+
+ /* launch, and wait for completion */
+ nv_wr32(dev, 0x00130c, hwsq_kick);
+ if (!nv_wait(dev, 0x001308, 0x00000100, 0x00000000)) {
+ NV_ERROR(dev, "hwsq ucode exec timed out\n");
+ NV_ERROR(dev, "0x001308: 0x%08x\n", nv_rd32(dev, 0x001308));
+ for (i = 0; i < hwsq->len / 4; i++) {
+ NV_ERROR(dev, "0x%06x: 0x%08x\n", 0x1400 + (i * 4),
+ nv_rd32(dev, 0x001400 + (i * 4)));
+ }
+
+ return -EIO;
+ }
+
+ return 0;
}
-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;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nv50_pm_state *info = data;
+ struct bit_entry M;
+ int ret = 0;
- 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);
+ /* halt and idle execution engines */
+ nv_mask(dev, 0x002504, 0x00000001, 0x00000001);
+ if (!nv_wait(dev, 0x002504, 0x00000010, 0x00000010))
+ goto error;
- nouveau_bios_run_init_table(dev, perflvl->memscript, NULL, -1);
+ /* memory: it is *very* important we change this first, the ucode
+ * we build in pre() now has hardcoded 0xc040 values, which can't
+ * change before we execute it or the engine clocks may end up
+ * messed up.
+ */
+ if (info->mclk_hwsq.len) {
+ /* 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);
+ }
+
+ ret = prog_mclk(dev, &info->mclk_hwsq);
+ if (ret)
+ goto resume;
}
- if (state->type == PLL_MEMORY) {
- nv_wr32(dev, 0x100210, 0);
- nv_wr32(dev, 0x1002dc, 1);
+ /* 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);
- 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);
+ /* core/shader: make sure sclk/nvclk are disconnected from their
+ * plls (nvclk to dom6, sclk to hclk), modify the plls, and
+ * reconnect sclk/nvclk to their new clock source
+ */
+ if (dev_priv->chipset < 0x92)
+ 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);
+
+ goto resume;
+error:
+ ret = -EBUSY;
+resume:
+ nv_mask(dev, 0x002504, 0x00000001, 0x00000000);
+ kfree(info);
+ return ret;
+}
- if (state->type == PLL_MEMORY) {
- nv_wr32(dev, 0x1002dc, 0);
- nv_wr32(dev, 0x100210, 0x80000000);
+static int
+pwm_info(struct drm_device *dev, int *line, int *ctrl, int *indx)
+{
+ if (*line == 0x04) {
+ *ctrl = 0x00e100;
+ *line = 4;
+ *indx = 0;
+ } else
+ if (*line == 0x09) {
+ *ctrl = 0x00e100;
+ *line = 9;
+ *indx = 1;
+ } else
+ if (*line == 0x10) {
+ *ctrl = 0x00e28c;
+ *line = 0;
+ *indx = 0;
+ } else {
+ NV_ERROR(dev, "unknown pwm ctrl for gpio %d\n", *line);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+int
+nv50_pm_pwm_get(struct drm_device *dev, int line, u32 *divs, u32 *duty)
+{
+ int ctrl, id, ret = pwm_info(dev, &line, &ctrl, &id);
+ if (ret)
+ return ret;
+
+ if (nv_rd32(dev, ctrl) & (1 << line)) {
+ *divs = nv_rd32(dev, 0x00e114 + (id * 8));
+ *duty = nv_rd32(dev, 0x00e118 + (id * 8));
+ return 0;
}
- kfree(state);
+ return -EINVAL;
}
+int
+nv50_pm_pwm_set(struct drm_device *dev, int line, u32 divs, u32 duty)
+{
+ int ctrl, id, ret = pwm_info(dev, &line, &ctrl, &id);
+ if (ret)
+ return ret;
+
+ nv_mask(dev, ctrl, 0x00010001 << line, 0x00000001 << line);
+ nv_wr32(dev, 0x00e114 + (id * 8), divs);
+ nv_wr32(dev, 0x00e118 + (id * 8), duty | 0x80000000);
+ return 0;
+}
projects / firefly-linux-kernel-4.4.55.git / blobdiff