User control of this has been hard-coded as disabled for now.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
nouveau-y += core/subdev/bios/vmap.o
nouveau-y += core/subdev/bios/volt.o
nouveau-y += core/subdev/bios/xpio.o
+nouveau-y += core/subdev/bus/hwsq.o
nouveau-y += core/subdev/bus/nv04.o
nouveau-y += core/subdev/bus/nv31.o
nouveau-y += core/subdev/bus/nv50.o
nouveau-y += core/subdev/bus/nv94.o
nouveau-y += core/subdev/bus/nvc0.o
+nouveau-y += core/subdev/clock/base.o
nouveau-y += core/subdev/clock/nv04.o
nouveau-y += core/subdev/clock/nv40.o
nouveau-y += core/subdev/clock/nv50.o
+nouveau-y += core/subdev/clock/nv84.o
nouveau-y += core/subdev/clock/nva3.o
nouveau-y += core/subdev/clock/nvc0.o
+nouveau-y += core/subdev/clock/nve0.o
nouveau-y += core/subdev/clock/pllnv04.o
nouveau-y += core/subdev/clock/pllnva3.o
nouveau-y += core/subdev/devinit/base.o
#include <core/option.h>
#include <core/debug.h>
-/* compares unterminated string 'str' with zero-terminated string 'cmp' */
-static inline int
-strncasecmpz(const char *str, const char *cmp, size_t len)
-{
- if (strlen(cmp) != len)
- return len;
- return strncasecmp(str, cmp, len);
-}
-
const char *
nouveau_stropt(const char *optstr, const char *opt, int *arglen)
{
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv50_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv50_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv50_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv50_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv84_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv84_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv50_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv84_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv84_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv50_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv84_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv84_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv94_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv84_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv84_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv94_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv84_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv84_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv94_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv84_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv84_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv50_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv84_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv84_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv94_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv84_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv84_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nv50_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nv94_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nv50_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = nv84_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nv84_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nve0_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nvd0_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nvc0_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = &nve0_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nvd0_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nvc0_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nve0_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nvd0_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nvc0_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = &nve0_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nvd0_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nvc0_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nve0_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nvd0_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nvc0_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = &nve0_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nvd0_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nvc0_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nve0_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nvd0_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nvc0_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = &nve0_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nvd0_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nvc0_devinit_oclass;
device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass;
device->oclass[NVDEV_SUBDEV_GPIO ] = &nve0_gpio_oclass;
device->oclass[NVDEV_SUBDEV_I2C ] = &nvd0_i2c_oclass;
- device->oclass[NVDEV_SUBDEV_CLOCK ] = &nvc0_clock_oclass;
+ device->oclass[NVDEV_SUBDEV_CLOCK ] = &nve0_clock_oclass;
device->oclass[NVDEV_SUBDEV_THERM ] = &nvd0_therm_oclass;
device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass;
device->oclass[NVDEV_SUBDEV_DEVINIT] = &nvc0_devinit_oclass;
int nouveau_dbgopt(const char *optstr, const char *sub);
+/* compares unterminated string 'str' with zero-terminated string 'cmp' */
+static inline int
+strncasecmpz(const char *str, const char *cmp, size_t len)
+{
+ if (strlen(cmp) != len)
+ return len;
+ return strncasecmp(str, cmp, len);
+}
+
#endif
struct nouveau_pll_vals;
struct nvbios_pll;
+enum nv_clk_src {
+ nv_clk_src_crystal,
+ nv_clk_src_href,
+
+ nv_clk_src_hclk,
+ nv_clk_src_hclkm3,
+ nv_clk_src_hclkm3d2,
+
+ nv_clk_src_host,
+
+ nv_clk_src_sppll0,
+ nv_clk_src_sppll1,
+
+ nv_clk_src_mpllsrcref,
+ nv_clk_src_mpllsrc,
+ nv_clk_src_mpll,
+ nv_clk_src_mdiv,
+
+ nv_clk_src_core,
+ nv_clk_src_shader,
+
+ nv_clk_src_mem,
+
+ nv_clk_src_gpc,
+ nv_clk_src_rop,
+ nv_clk_src_hubk01,
+ nv_clk_src_hubk06,
+ nv_clk_src_hubk07,
+ nv_clk_src_copy,
+ nv_clk_src_daemon,
+ nv_clk_src_disp,
+ nv_clk_src_vdec,
+
+ nv_clk_src_dom6,
+
+ nv_clk_src_max,
+};
+
+struct nouveau_cstate {
+ struct list_head head;
+ u8 voltage;
+ u32 domain[nv_clk_src_max];
+};
+
+struct nouveau_pstate {
+ struct list_head head;
+ struct list_head list; /* c-states */
+ struct nouveau_cstate base;
+ u8 pstate;
+ u8 fanspeed;
+};
+
struct nouveau_clock {
struct nouveau_subdev base;
+ struct nouveau_clocks *domains;
+ struct nouveau_pstate bstate;
+
+ struct list_head states;
+ int state_nr;
+
+ int pstate; /* current */
+ int ustate; /* user-requested (-1 disabled, -2 perfmon) */
+ int astate; /* perfmon adjustment (base) */
+ int tstate; /* thermal adjustment (max-) */
+ int dstate; /* display adjustment (min+) */
+
+ int (*read)(struct nouveau_clock *, enum nv_clk_src);
+ int (*calc)(struct nouveau_clock *, struct nouveau_cstate *);
+ int (*prog)(struct nouveau_clock *);
+ void (*tidy)(struct nouveau_clock *);
+
/*XXX: die, these are here *only* to support the completely
* bat-shit insane what-was-nouveau_hw.c code
*/
return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_CLOCK];
}
-#define nouveau_clock_create(p,e,o,d) \
- nouveau_subdev_create((p), (e), (o), 0, "CLOCK", "clock", d)
-#define nouveau_clock_destroy(p) \
- nouveau_subdev_destroy(&(p)->base)
-#define nouveau_clock_init(p) \
- nouveau_subdev_init(&(p)->base)
+struct nouveau_clocks {
+ enum nv_clk_src name;
+ u8 bios; /* 0xff for none */
+#define NVKM_CLK_DOM_FLAG_CORE 0x01
+ u8 flags;
+ const char *mname;
+ int mdiv;
+};
+
+#define nouveau_clock_create(p,e,o,i,d) \
+ nouveau_clock_create_((p), (e), (o), (i), sizeof(**d), (void **)d)
+#define nouveau_clock_destroy(p) ({ \
+ struct nouveau_clock *clk = (p); \
+ _nouveau_clock_dtor(nv_object(clk)); \
+})
+#define nouveau_clock_init(p) ({ \
+ struct nouveau_clock *clk = (p); \
+ _nouveau_clock_init(nv_object(clk)); \
+})
#define nouveau_clock_fini(p,s) \
nouveau_subdev_fini(&(p)->base, (s))
int nouveau_clock_create_(struct nouveau_object *, struct nouveau_object *,
- struct nouveau_oclass *, void *, u32, int, void **);
-
-#define _nouveau_clock_dtor _nouveau_subdev_dtor
-#define _nouveau_clock_init _nouveau_subdev_init
+ struct nouveau_oclass *,
+ struct nouveau_clocks *, int, void **);
+void _nouveau_clock_dtor(struct nouveau_object *);
+int _nouveau_clock_init(struct nouveau_object *);
#define _nouveau_clock_fini _nouveau_subdev_fini
extern struct nouveau_oclass nv04_clock_oclass;
extern struct nouveau_oclass nv40_clock_oclass;
-extern struct nouveau_oclass nv50_clock_oclass;
+extern struct nouveau_oclass *nv50_clock_oclass;
+extern struct nouveau_oclass *nv84_clock_oclass;
extern struct nouveau_oclass nva3_clock_oclass;
extern struct nouveau_oclass nvc0_clock_oclass;
+extern struct nouveau_oclass nve0_clock_oclass;
int nv04_clock_pll_set(struct nouveau_clock *, u32 type, u32 freq);
int nv04_clock_pll_calc(struct nouveau_clock *, struct nvbios_pll *,
int nva3_clock_pll_calc(struct nouveau_clock *, struct nvbios_pll *,
int clk, struct nouveau_pll_vals *);
+int nouveau_clock_ustate(struct nouveau_clock *, int req);
+int nouveau_clock_astate(struct nouveau_clock *, int req, int rel);
+int nouveau_clock_dstate(struct nouveau_clock *, int req, int rel);
+int nouveau_clock_tstate(struct nouveau_clock *, int req, int rel);
+
#endif
int (*get)(struct nouveau_fb *, u64 size, u32 align,
u32 size_nc, u32 type, struct nouveau_mem **);
void (*put)(struct nouveau_fb *, struct nouveau_mem **);
+ int (*calc)(struct nouveau_fb *, u32 freq);
+ int (*prog)(struct nouveau_fb *);
+ void (*tidy)(struct nouveau_fb *);
};
#endif
--- /dev/null
+/*
+ * Copyright 2013 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/option.h>
+
+#include <subdev/clock.h>
+#include <subdev/therm.h>
+#include <subdev/volt.h>
+#include <subdev/fb.h>
+
+#include <subdev/bios.h>
+#include <subdev/bios/boost.h>
+#include <subdev/bios/cstep.h>
+#include <subdev/bios/perf.h>
+
+/******************************************************************************
+ * misc
+ *****************************************************************************/
+static u32
+nouveau_clock_adjust(struct nouveau_clock *clk, bool adjust,
+ u8 pstate, u8 domain, u32 input)
+{
+ struct nouveau_bios *bios = nouveau_bios(clk);
+ struct nvbios_boostE boostE;
+ u8 ver, hdr, cnt, len;
+ u16 data;
+
+ data = nvbios_boostEm(bios, pstate, &ver, &hdr, &cnt, &len, &boostE);
+ if (data) {
+ struct nvbios_boostS boostS;
+ u8 idx = 0, sver, shdr;
+ u16 subd;
+
+ input = max(boostE.min, input);
+ input = min(boostE.max, input);
+ do {
+ sver = ver;
+ shdr = hdr;
+ subd = nvbios_boostSp(bios, idx++, data, &sver, &shdr,
+ cnt, len, &boostS);
+ if (subd && boostS.domain == domain) {
+ if (adjust)
+ input = input * boostS.percent / 100;
+ input = max(boostS.min, input);
+ input = min(boostS.max, input);
+ break;
+ }
+ } while (subd);
+ }
+
+ return input;
+}
+
+/******************************************************************************
+ * C-States
+ *****************************************************************************/
+static int
+nouveau_cstate_prog(struct nouveau_clock *clk,
+ struct nouveau_pstate *pstate, int cstatei)
+{
+ struct nouveau_therm *ptherm = nouveau_therm(clk);
+ struct nouveau_volt *volt = nouveau_volt(clk);
+ struct nouveau_cstate *cstate;
+ int ret;
+
+ if (!list_empty(&pstate->list)) {
+ cstate = list_entry(pstate->list.prev, typeof(*cstate), head);
+ } else {
+ cstate = &pstate->base;
+ }
+
+ ret = nouveau_therm_cstate(ptherm, pstate->fanspeed, +1);
+ if (ret && ret != -ENODEV) {
+ nv_error(clk, "failed to raise fan speed: %d\n", ret);
+ return ret;
+ }
+
+ ret = volt->set_id(volt, cstate->voltage, +1);
+ if (ret && ret != -ENODEV) {
+ nv_error(clk, "failed to raise voltage: %d\n", ret);
+ return ret;
+ }
+
+ ret = clk->calc(clk, cstate);
+ if (ret == 0) {
+ ret = clk->prog(clk);
+ clk->tidy(clk);
+ }
+
+ ret = volt->set_id(volt, cstate->voltage, -1);
+ if (ret && ret != -ENODEV)
+ nv_error(clk, "failed to lower voltage: %d\n", ret);
+
+ ret = nouveau_therm_cstate(ptherm, pstate->fanspeed, -1);
+ if (ret && ret != -ENODEV)
+ nv_error(clk, "failed to lower fan speed: %d\n", ret);
+
+ return 0;
+}
+
+static void
+nouveau_cstate_del(struct nouveau_cstate *cstate)
+{
+ list_del(&cstate->head);
+ kfree(cstate);
+}
+
+static int
+nouveau_cstate_new(struct nouveau_clock *clk, int idx,
+ struct nouveau_pstate *pstate)
+{
+ struct nouveau_bios *bios = nouveau_bios(clk);
+ struct nouveau_clocks *domain = clk->domains;
+ struct nouveau_cstate *cstate = NULL;
+ struct nvbios_cstepX cstepX;
+ u8 ver, hdr;
+ u16 data;
+
+ data = nvbios_cstepXp(bios, idx, &ver, &hdr, &cstepX);
+ if (!data)
+ return -ENOENT;
+
+ cstate = kzalloc(sizeof(*cstate), GFP_KERNEL);
+ if (!cstate)
+ return -ENOMEM;
+
+ *cstate = pstate->base;
+ cstate->voltage = cstepX.voltage;
+
+ while (domain && domain->name != nv_clk_src_max) {
+ if (domain->flags & NVKM_CLK_DOM_FLAG_CORE) {
+ u32 freq = nouveau_clock_adjust(clk, true,
+ pstate->pstate,
+ domain->bios,
+ cstepX.freq);
+ cstate->domain[domain->name] = freq;
+ }
+ domain++;
+ }
+
+ list_add(&cstate->head, &pstate->list);
+ return 0;
+}
+
+/******************************************************************************
+ * P-States
+ *****************************************************************************/
+static int
+nouveau_pstate_prog(struct nouveau_clock *clk, int pstatei)
+{
+ struct nouveau_fb *pfb = nouveau_fb(clk);
+ struct nouveau_pstate *pstate;
+ int ret, idx = 0;
+
+ list_for_each_entry(pstate, &clk->states, head) {
+ if (idx++ == pstatei)
+ break;
+ }
+
+ nv_debug(clk, "setting performance state %d\n", pstatei);
+ clk->pstate = pstatei;
+
+ if (pfb->ram->calc) {
+ ret = pfb->ram->calc(pfb, pstate->base.domain[nv_clk_src_mem]);
+ if (ret == 0)
+ ret = pfb->ram->prog(pfb);
+ pfb->ram->tidy(pfb);
+ }
+
+ return nouveau_cstate_prog(clk, pstate, 0);
+}
+
+static int
+nouveau_pstate_calc(struct nouveau_clock *clk)
+{
+ int pstate, ret = 0;
+
+ nv_trace(clk, "P %d U %d A %d T %d D %d\n", clk->pstate,
+ clk->ustate, clk->astate, clk->tstate, clk->dstate);
+
+ if (clk->state_nr && clk->ustate != -1) {
+ pstate = (clk->ustate < 0) ? clk->astate : clk->ustate;
+ pstate = min(pstate, clk->state_nr - 1 - clk->tstate);
+ pstate = max(pstate, clk->dstate);
+ } else {
+ pstate = clk->pstate = -1;
+ }
+
+ nv_trace(clk, "-> %d\n", pstate);
+ if (pstate != clk->pstate)
+ ret = nouveau_pstate_prog(clk, pstate);
+ return ret;
+}
+
+static void
+nouveau_pstate_info(struct nouveau_clock *clk, struct nouveau_pstate *pstate)
+{
+ struct nouveau_clocks *clock = clk->domains - 1;
+ struct nouveau_cstate *cstate;
+ char info[3][32] = { "", "", "" };
+ char name[4] = "--";
+ int i = -1;
+
+ if (pstate->pstate != 0xff)
+ snprintf(name, sizeof(name), "%02x", pstate->pstate);
+
+ while ((++clock)->name != nv_clk_src_max) {
+ u32 lo = pstate->base.domain[clock->name];
+ u32 hi = lo;
+ if (hi == 0)
+ continue;
+
+ nv_debug(clk, "%02x: %10d KHz\n", clock->name, lo);
+ list_for_each_entry(cstate, &pstate->list, head) {
+ u32 freq = cstate->domain[clock->name];
+ lo = min(lo, freq);
+ hi = max(hi, freq);
+ nv_debug(clk, "%10d KHz\n", freq);
+ }
+
+ if (clock->mname && ++i < ARRAY_SIZE(info)) {
+ lo /= clock->mdiv;
+ hi /= clock->mdiv;
+ if (lo == hi) {
+ snprintf(info[i], sizeof(info[i]), "%s %d MHz",
+ clock->mname, lo);
+ } else {
+ snprintf(info[i], sizeof(info[i]),
+ "%s %d-%d MHz", clock->mname, lo, hi);
+ }
+ }
+ }
+
+ nv_info(clk, "%s: %s %s %s\n", name, info[0], info[1], info[2]);
+}
+
+static void
+nouveau_pstate_del(struct nouveau_pstate *pstate)
+{
+ struct nouveau_cstate *cstate, *temp;
+
+ list_for_each_entry_safe(cstate, temp, &pstate->list, head) {
+ nouveau_cstate_del(cstate);
+ }
+
+ list_del(&pstate->head);
+ kfree(pstate);
+}
+
+static int
+nouveau_pstate_new(struct nouveau_clock *clk, int idx)
+{
+ struct nouveau_bios *bios = nouveau_bios(clk);
+ struct nouveau_clocks *domain = clk->domains - 1;
+ struct nouveau_pstate *pstate;
+ struct nouveau_cstate *cstate;
+ struct nvbios_cstepE cstepE;
+ struct nvbios_perfE perfE;
+ u8 ver, hdr, cnt, len;
+ u16 data;
+
+ data = nvbios_perfEp(bios, idx, &ver, &hdr, &cnt, &len, &perfE);
+ if (!data)
+ return -EINVAL;
+ if (perfE.pstate == 0xff)
+ return 0;
+
+ pstate = kzalloc(sizeof(*pstate), GFP_KERNEL);
+ cstate = &pstate->base;
+ if (!pstate)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&pstate->list);
+
+ pstate->pstate = perfE.pstate;
+ pstate->fanspeed = perfE.fanspeed;
+ cstate->voltage = perfE.voltage;
+ cstate->domain[nv_clk_src_core] = perfE.core;
+ cstate->domain[nv_clk_src_shader] = perfE.shader;
+ cstate->domain[nv_clk_src_mem] = perfE.memory;
+ cstate->domain[nv_clk_src_vdec] = perfE.vdec;
+ cstate->domain[nv_clk_src_dom6] = perfE.disp;
+
+ while (ver >= 0x40 && (++domain)->name != nv_clk_src_max) {
+ struct nvbios_perfS perfS;
+ u8 sver = ver, shdr = hdr;
+ u32 perfSe = nvbios_perfSp(bios, data, domain->bios,
+ &sver, &shdr, cnt, len, &perfS);
+ if (perfSe == 0 || sver != 0x40)
+ continue;
+
+ if (domain->flags & NVKM_CLK_DOM_FLAG_CORE) {
+ perfS.v40.freq = nouveau_clock_adjust(clk, false,
+ pstate->pstate,
+ domain->bios,
+ perfS.v40.freq);
+ }
+
+ cstate->domain[domain->name] = perfS.v40.freq;
+ }
+
+ data = nvbios_cstepEm(bios, pstate->pstate, &ver, &hdr, &cstepE);
+ if (data) {
+ int idx = cstepE.index;
+ do {
+ nouveau_cstate_new(clk, idx, pstate);
+ } while(idx--);
+ }
+
+ nouveau_pstate_info(clk, pstate);
+ list_add_tail(&pstate->head, &clk->states);
+ clk->state_nr++;
+ return 0;
+}
+
+/******************************************************************************
+ * Adjustment triggers
+ *****************************************************************************/
+static int
+nouveau_clock_ustate_update(struct nouveau_clock *clk, int req)
+{
+ struct nouveau_pstate *pstate;
+ int i = 0;
+
+ /* YKW repellant */
+ return -ENOSYS;
+
+ if (req != -1 && req != -2) {
+ list_for_each_entry(pstate, &clk->states, head) {
+ if (pstate->pstate == req)
+ break;
+ i++;
+ }
+
+ if (pstate->pstate != req)
+ return -EINVAL;
+ req = i;
+ }
+
+ clk->ustate = req;
+ return 0;
+}
+
+int
+nouveau_clock_ustate(struct nouveau_clock *clk, int req)
+{
+ int ret = nouveau_clock_ustate_update(clk, req);
+ if (ret)
+ return ret;
+ return nouveau_pstate_calc(clk);
+}
+
+int
+nouveau_clock_astate(struct nouveau_clock *clk, int req, int rel)
+{
+ if (!rel) clk->astate = req;
+ if ( rel) clk->astate += rel;
+ clk->astate = min(clk->astate, clk->state_nr - 1);
+ clk->astate = max(clk->astate, 0);
+ return nouveau_pstate_calc(clk);
+}
+
+int
+nouveau_clock_tstate(struct nouveau_clock *clk, int req, int rel)
+{
+ if (!rel) clk->tstate = req;
+ if ( rel) clk->tstate += rel;
+ clk->tstate = min(clk->tstate, 0);
+ clk->tstate = max(clk->tstate, -(clk->state_nr - 1));
+ return nouveau_pstate_calc(clk);
+}
+
+int
+nouveau_clock_dstate(struct nouveau_clock *clk, int req, int rel)
+{
+ if (!rel) clk->dstate = req;
+ if ( rel) clk->dstate += rel;
+ clk->dstate = min(clk->dstate, clk->state_nr - 1);
+ clk->dstate = max(clk->dstate, 0);
+ return nouveau_pstate_calc(clk);
+}
+
+/******************************************************************************
+ * subdev base class implementation
+ *****************************************************************************/
+int
+_nouveau_clock_init(struct nouveau_object *object)
+{
+ struct nouveau_clock *clk = (void *)object;
+ struct nouveau_clocks *clock = clk->domains;
+ int ret;
+
+ memset(&clk->bstate, 0x00, sizeof(clk->bstate));
+ INIT_LIST_HEAD(&clk->bstate.list);
+ clk->bstate.pstate = 0xff;
+
+ while (clock->name != nv_clk_src_max) {
+ ret = clk->read(clk, clock->name);
+ if (ret < 0) {
+ nv_error(clk, "%02x freq unknown\n", clock->name);
+ return ret;
+ }
+ clk->bstate.base.domain[clock->name] = ret;
+ clock++;
+ }
+
+ nouveau_pstate_info(clk, &clk->bstate);
+
+ clk->astate = clk->state_nr - 1;
+ clk->tstate = 0;
+ clk->dstate = 0;
+ clk->pstate = -1;
+ nouveau_pstate_calc(clk);
+ return 0;
+}
+
+void
+_nouveau_clock_dtor(struct nouveau_object *object)
+{
+ struct nouveau_clock *clk = (void *)object;
+ struct nouveau_pstate *pstate, *temp;
+
+ list_for_each_entry_safe(pstate, temp, &clk->states, head) {
+ nouveau_pstate_del(pstate);
+ }
+
+ nouveau_subdev_destroy(&clk->base);
+}
+
+int
+nouveau_clock_create_(struct nouveau_object *parent,
+ struct nouveau_object *engine,
+ struct nouveau_oclass *oclass,
+ struct nouveau_clocks *clocks,
+ int length, void **object)
+{
+ struct nouveau_device *device = nv_device(parent);
+ struct nouveau_clock *clk;
+ int ret, idx, arglen;
+ const char *mode;
+
+ ret = nouveau_subdev_create_(parent, engine, oclass, 0, "CLK",
+ "clock", length, object);
+ clk = *object;
+ if (ret)
+ return ret;
+
+ INIT_LIST_HEAD(&clk->states);
+ clk->domains = clocks;
+ clk->ustate = -1;
+
+ idx = 0;
+ do {
+ ret = nouveau_pstate_new(clk, idx++);
+ } while (ret == 0);
+
+ mode = nouveau_stropt(device->cfgopt, "NvClkMode", &arglen);
+ if (mode) {
+ if (!strncasecmpz(mode, "disabled", arglen)) {
+ clk->ustate = -1;
+ } else {
+ char save = mode[arglen];
+ long v;
+
+ ((char *)mode)[arglen] = '\0';
+ if (!kstrtol(mode, 0, &v))
+ nouveau_clock_ustate_update(clk, v);
+ ((char *)mode)[arglen] = save;
+ }
+ }
+
+ return 0;
+}
struct nv04_clock_priv *priv;
int ret;
- ret = nouveau_clock_create(parent, engine, oclass, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, NULL, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
*/
#include <subdev/clock.h>
+#include <subdev/bios.h>
+#include <subdev/bios/pll.h>
+
+#include "pll.h"
struct nv40_clock_priv {
struct nouveau_clock base;
+ u32 ctrl;
+ u32 npll_ctrl;
+ u32 npll_coef;
+ u32 spll;
+};
+
+static struct nouveau_clocks
+nv40_domain[] = {
+ { nv_clk_src_crystal, 0xff },
+ { nv_clk_src_href , 0xff },
+ { nv_clk_src_core , 0xff, 0, "core", 1000 },
+ { nv_clk_src_shader , 0xff, 0, "shader", 1000 },
+ { nv_clk_src_mem , 0xff, 0, "memory", 1000 },
+ { nv_clk_src_max }
};
+static u32
+read_pll_1(struct nv40_clock_priv *priv, u32 reg)
+{
+ u32 ctrl = nv_rd32(priv, reg + 0x00);
+ int P = (ctrl & 0x00070000) >> 16;
+ int N = (ctrl & 0x0000ff00) >> 8;
+ int M = (ctrl & 0x000000ff) >> 0;
+ u32 ref = 27000, clk = 0;
+
+ if (ctrl & 0x80000000)
+ clk = ref * N / M;
+
+ return clk >> P;
+}
+
+static u32
+read_pll_2(struct nv40_clock_priv *priv, u32 reg)
+{
+ u32 ctrl = nv_rd32(priv, reg + 0x00);
+ u32 coef = nv_rd32(priv, reg + 0x04);
+ int N2 = (coef & 0xff000000) >> 24;
+ int M2 = (coef & 0x00ff0000) >> 16;
+ int N1 = (coef & 0x0000ff00) >> 8;
+ int M1 = (coef & 0x000000ff) >> 0;
+ int P = (ctrl & 0x00070000) >> 16;
+ u32 ref = 27000, clk = 0;
+
+ if ((ctrl & 0x80000000) && M1) {
+ clk = ref * N1 / M1;
+ if ((ctrl & 0x40000100) == 0x40000000) {
+ if (M2)
+ clk = clk * N2 / M2;
+ else
+ clk = 0;
+ }
+ }
+
+ return clk >> P;
+}
+
+static u32
+read_clk(struct nv40_clock_priv *priv, u32 src)
+{
+ switch (src) {
+ case 3:
+ return read_pll_2(priv, 0x004000);
+ case 2:
+ return read_pll_1(priv, 0x004008);
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int
+nv40_clock_read(struct nouveau_clock *clk, enum nv_clk_src src)
+{
+ struct nv40_clock_priv *priv = (void *)clk;
+ u32 mast = nv_rd32(priv, 0x00c040);
+
+ switch (src) {
+ case nv_clk_src_crystal:
+ return nv_device(priv)->crystal;
+ case nv_clk_src_href:
+ return 100000; /*XXX: PCIE/AGP differ*/
+ case nv_clk_src_core:
+ return read_clk(priv, (mast & 0x00000003) >> 0);
+ case nv_clk_src_shader:
+ return read_clk(priv, (mast & 0x00000030) >> 4);
+ case nv_clk_src_mem:
+ return read_pll_2(priv, 0x4020);
+ default:
+ break;
+ }
+
+ nv_debug(priv, "unknown clock source %d 0x%08x\n", src, mast);
+ return -EINVAL;
+}
+
+static int
+nv40_clock_calc_pll(struct nv40_clock_priv *priv, u32 reg, u32 clk,
+ int *N1, int *M1, int *N2, int *M2, int *log2P)
+{
+ struct nouveau_bios *bios = nouveau_bios(priv);
+ struct nvbios_pll pll;
+ int ret;
+
+ ret = nvbios_pll_parse(bios, reg, &pll);
+ if (ret)
+ return ret;
+
+ if (clk < pll.vco1.max_freq)
+ pll.vco2.max_freq = 0;
+
+ ret = nv04_pll_calc(nv_subdev(priv), &pll, clk, N1, M1, N2, M2, log2P);
+ if (ret == 0)
+ return -ERANGE;
+ return ret;
+}
+
+static int
+nv40_clock_calc(struct nouveau_clock *clk, struct nouveau_cstate *cstate)
+{
+ struct nv40_clock_priv *priv = (void *)clk;
+ int gclk = cstate->domain[nv_clk_src_core];
+ int sclk = cstate->domain[nv_clk_src_shader];
+ int N1, M1, N2, M2, log2P;
+ int ret;
+
+ /* core/geometric clock */
+ ret = nv40_clock_calc_pll(priv, 0x004000, gclk,
+ &N1, &M1, &N2, &M2, &log2P);
+ if (ret < 0)
+ return ret;
+
+ if (N2 == M2) {
+ priv->npll_ctrl = 0x80000100 | (log2P << 16);
+ priv->npll_coef = (N1 << 8) | M1;
+ } else {
+ priv->npll_ctrl = 0xc0000000 | (log2P << 16);
+ priv->npll_coef = (N2 << 24) | (M2 << 16) | (N1 << 8) | M1;
+ }
+
+ /* use the second pll for shader/rop clock, if it differs from core */
+ if (sclk && sclk != gclk) {
+ ret = nv40_clock_calc_pll(priv, 0x004008, sclk,
+ &N1, &M1, NULL, NULL, &log2P);
+ if (ret < 0)
+ return ret;
+
+ priv->spll = 0xc0000000 | (log2P << 16) | (N1 << 8) | M1;
+ priv->ctrl = 0x00000223;
+ } else {
+ priv->spll = 0x00000000;
+ priv->ctrl = 0x00000333;
+ }
+
+ return 0;
+}
+
+static int
+nv40_clock_prog(struct nouveau_clock *clk)
+{
+ struct nv40_clock_priv *priv = (void *)clk;
+ nv_mask(priv, 0x00c040, 0x00000333, 0x00000000);
+ nv_wr32(priv, 0x004004, priv->npll_coef);
+ nv_mask(priv, 0x004000, 0xc0070100, priv->npll_ctrl);
+ nv_mask(priv, 0x004008, 0xc007ffff, priv->spll);
+ mdelay(5);
+ nv_mask(priv, 0x00c040, 0x00000333, priv->ctrl);
+ return 0;
+}
+
+static void
+nv40_clock_tidy(struct nouveau_clock *clk)
+{
+}
+
static int
nv40_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 size,
struct nv40_clock_priv *priv;
int ret;
- ret = nouveau_clock_create(parent, engine, oclass, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, nv40_domain, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
priv->base.pll_calc = nv04_clock_pll_calc;
priv->base.pll_prog = nv04_clock_pll_prog;
+ priv->base.read = nv40_clock_read;
+ priv->base.calc = nv40_clock_calc;
+ priv->base.prog = nv40_clock_prog;
+ priv->base.tidy = nv40_clock_tidy;
return 0;
}
* Authors: Ben Skeggs
*/
-#include <subdev/clock.h>
#include <subdev/bios.h>
#include <subdev/bios/pll.h>
+#include "nv50.h"
#include "pll.h"
+#include "seq.h"
-struct nv50_clock_priv {
- struct nouveau_clock base;
-};
+static u32
+read_div(struct nv50_clock_priv *priv)
+{
+ switch (nv_device(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(priv, 0x004700);
+ case 0x92:
+ case 0x94:
+ case 0x96:
+ return nv_rd32(priv, 0x004800);
+ default:
+ return 0x00000000;
+ }
+}
+
+static u32
+read_pll_src(struct nv50_clock_priv *priv, u32 base)
+{
+ struct nouveau_clock *clk = &priv->base;
+ u32 coef, ref = clk->read(clk, nv_clk_src_crystal);
+ u32 rsel = nv_rd32(priv, 0x00e18c);
+ int P, N, M, id;
+
+ switch (nv_device(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(priv, "ref: bad pll 0x%06x\n", base);
+ return 0;
+ }
+
+ coef = nv_rd32(priv, 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(priv, 0x00e81c);
+ P = (coef & 0x00070000) >> 16;
+ N = (coef & 0x0000ff00) >> 8;
+ M = (coef & 0x000000ff) >> 0;
+ break;
+ case 0x94:
+ case 0x96:
+ case 0x98:
+ rsel = nv_rd32(priv, 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(priv, "ref: bad pll 0x%06x\n", base);
+ return 0;
+ }
+
+ switch (rsel) {
+ case 0: id = 1; break;
+ case 1: return clk->read(clk, nv_clk_src_crystal);
+ case 2: return clk->read(clk, nv_clk_src_href);
+ case 3: id = 0; break;
+ }
+
+ coef = nv_rd32(priv, 0x00e81c + (id * 0x28));
+ P = (nv_rd32(priv, 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 nv50_clock_priv *priv, u32 base)
+{
+ struct nouveau_clock *clk = &priv->base;
+ u32 src, mast = nv_rd32(priv, 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 clk->read(clk, nv_clk_src_crystal);
+ default:
+ nv_error(priv, "bad pll 0x%06x\n", base);
+ return 0;
+ }
+
+ if (src)
+ return clk->read(clk, nv_clk_src_href);
+ return read_pll_src(priv, base);
+}
+
+static u32
+read_pll(struct nv50_clock_priv *priv, u32 base)
+{
+ struct nouveau_clock *clk = &priv->base;
+ u32 mast = nv_rd32(priv, 0x00c040);
+ u32 ctrl = nv_rd32(priv, base + 0);
+ u32 coef = nv_rd32(priv, base + 4);
+ u32 ref = read_pll_ref(priv, base);
+ u32 freq = 0;
+ int N1, N2, M1, M2;
+
+ if (base == 0x004028 && (mast & 0x00100000)) {
+ /* wtf, appears to only disable post-divider on nva0 */
+ if (nv_device(priv)->chipset != 0xa0)
+ return clk->read(clk, nv_clk_src_dom6);
+ }
+
+ N2 = (coef & 0xff000000) >> 24;
+ M2 = (coef & 0x00ff0000) >> 16;
+ N1 = (coef & 0x0000ff00) >> 8;
+ M1 = (coef & 0x000000ff);
+ if ((ctrl & 0x80000000) && M1) {
+ freq = ref * N1 / M1;
+ if ((ctrl & 0x40000100) == 0x40000000) {
+ if (M2)
+ freq = freq * N2 / M2;
+ else
+ freq = 0;
+ }
+ }
+
+ return freq;
+}
static int
+nv50_clock_read(struct nouveau_clock *clk, enum nv_clk_src src)
+{
+ struct nv50_clock_priv *priv = (void *)clk;
+ u32 mast = nv_rd32(priv, 0x00c040);
+ u32 P = 0;
+
+ switch (src) {
+ case nv_clk_src_crystal:
+ return nv_device(priv)->crystal;
+ case nv_clk_src_href:
+ return 100000; /* PCIE reference clock */
+ case nv_clk_src_hclk:
+ return (u64)clk->read(clk, nv_clk_src_href) * 27778 / 10000;
+ case nv_clk_src_hclkm3:
+ return clk->read(clk, nv_clk_src_hclk) * 3;
+ case nv_clk_src_hclkm3d2:
+ return clk->read(clk, nv_clk_src_hclk) * 3 / 2;
+ case nv_clk_src_host:
+ switch (mast & 0x30000000) {
+ case 0x00000000: return clk->read(clk, nv_clk_src_href);
+ case 0x10000000: break;
+ case 0x20000000: /* !0x50 */
+ case 0x30000000: return clk->read(clk, nv_clk_src_hclk);
+ }
+ break;
+ case nv_clk_src_core:
+ if (!(mast & 0x00100000))
+ P = (nv_rd32(priv, 0x004028) & 0x00070000) >> 16;
+ switch (mast & 0x00000003) {
+ case 0x00000000: return clk->read(clk, nv_clk_src_crystal) >> P;
+ case 0x00000001: return clk->read(clk, nv_clk_src_dom6);
+ case 0x00000002: return read_pll(priv, 0x004020) >> P;
+ case 0x00000003: return read_pll(priv, 0x004028) >> P;
+ }
+ break;
+ case nv_clk_src_shader:
+ P = (nv_rd32(priv, 0x004020) & 0x00070000) >> 16;
+ switch (mast & 0x00000030) {
+ case 0x00000000:
+ if (mast & 0x00000080)
+ return clk->read(clk, nv_clk_src_host) >> P;
+ return clk->read(clk, nv_clk_src_crystal) >> P;
+ case 0x00000010: break;
+ case 0x00000020: return read_pll(priv, 0x004028) >> P;
+ case 0x00000030: return read_pll(priv, 0x004020) >> P;
+ }
+ break;
+ case nv_clk_src_mem:
+ P = (nv_rd32(priv, 0x004008) & 0x00070000) >> 16;
+ if (nv_rd32(priv, 0x004008) & 0x00000200) {
+ switch (mast & 0x0000c000) {
+ case 0x00000000:
+ return clk->read(clk, nv_clk_src_crystal) >> P;
+ case 0x00008000:
+ case 0x0000c000:
+ return clk->read(clk, nv_clk_src_href) >> P;
+ }
+ } else {
+ return read_pll(priv, 0x004008) >> P;
+ }
+ break;
+ case nv_clk_src_vdec:
+ P = (read_div(priv) & 0x00000700) >> 8;
+ switch (nv_device(priv)->chipset) {
+ case 0x84:
+ case 0x86:
+ case 0x92:
+ case 0x94:
+ case 0x96:
+ case 0xa0:
+ switch (mast & 0x00000c00) {
+ case 0x00000000:
+ if (nv_device(priv)->chipset == 0xa0) /* wtf?? */
+ return clk->read(clk, nv_clk_src_core) >> P;
+ return clk->read(clk, nv_clk_src_crystal) >> P;
+ case 0x00000400:
+ return 0;
+ case 0x00000800:
+ if (mast & 0x01000000)
+ return read_pll(priv, 0x004028) >> P;
+ return read_pll(priv, 0x004030) >> P;
+ case 0x00000c00:
+ return clk->read(clk, nv_clk_src_core) >> P;
+ }
+ break;
+ case 0x98:
+ switch (mast & 0x00000c00) {
+ case 0x00000000:
+ return clk->read(clk, nv_clk_src_core) >> P;
+ case 0x00000400:
+ return 0;
+ case 0x00000800:
+ return clk->read(clk, nv_clk_src_hclkm3d2) >> P;
+ case 0x00000c00:
+ return clk->read(clk, nv_clk_src_mem) >> P;
+ }
+ break;
+ }
+ break;
+ case nv_clk_src_dom6:
+ switch (nv_device(priv)->chipset) {
+ case 0x50:
+ case 0xa0:
+ return read_pll(priv, 0x00e810) >> 2;
+ case 0x84:
+ case 0x86:
+ case 0x92:
+ case 0x94:
+ case 0x96:
+ case 0x98:
+ P = (read_div(priv) & 0x00000007) >> 0;
+ switch (mast & 0x0c000000) {
+ case 0x00000000: return clk->read(clk, nv_clk_src_href);
+ case 0x04000000: break;
+ case 0x08000000: return clk->read(clk, nv_clk_src_hclk);
+ case 0x0c000000:
+ return clk->read(clk, nv_clk_src_hclkm3) >> P;
+ }
+ break;
+ default:
+ break;
+ }
+ default:
+ break;
+ }
+
+ nv_debug(priv, "unknown clock source %d 0x%08x\n", src, mast);
+ return -EINVAL;
+}
+
+static u32
+calc_pll(struct nv50_clock_priv *priv, u32 reg, u32 clk, int *N, int *M, int *P)
+{
+ struct nouveau_bios *bios = nouveau_bios(priv);
+ struct nvbios_pll pll;
+ int ret;
+
+ ret = nvbios_pll_parse(bios, reg, &pll);
+ if (ret)
+ return 0;
+
+ pll.vco2.max_freq = 0;
+ pll.refclk = read_pll_ref(priv, reg);
+ if (!pll.refclk)
+ return 0;
+
+ return nv04_pll_calc(nv_subdev(priv), &pll, clk, N, M, NULL, NULL, P);
+}
+
+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
+nv50_clock_calc(struct nouveau_clock *clk, struct nouveau_cstate *cstate)
+{
+ struct nv50_clock_priv *priv = (void *)clk;
+ struct nv50_clock_hwsq *hwsq = &priv->hwsq;
+ const int shader = cstate->domain[nv_clk_src_shader];
+ const int core = cstate->domain[nv_clk_src_core];
+ const int vdec = cstate->domain[nv_clk_src_vdec];
+ const int dom6 = cstate->domain[nv_clk_src_dom6];
+ u32 mastm = 0, mastv = 0;
+ u32 divsm = 0, divsv = 0;
+ int N, M, P1, P2;
+ int freq, out;
+
+ /* prepare a hwsq script from which we'll perform the reclock */
+ out = clk_init(hwsq, nv_subdev(clk));
+ if (out)
+ return out;
+
+ clk_wr32(hwsq, fifo, 0x00000001); /* block fifo */
+ clk_nsec(hwsq, 8000);
+ clk_setf(hwsq, 0x10, 0x00); /* disable fb */
+ clk_wait(hwsq, 0x00, 0x01); /* wait for fb disabled */
+
+ /* 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...
+ */
+ if (vdec) {
+ /* see how close we can get using nvclk as a source */
+ freq = calc_div(core, vdec, &P1);
+
+ /* see how close we can get using xpll/hclk as a source */
+ if (nv_device(priv)->chipset != 0x98)
+ out = read_pll(priv, 0x004030);
+ else
+ out = clk->read(clk, nv_clk_src_hclkm3d2);
+ out = calc_div(out, vdec, &P2);
+
+ /* select whichever gets us closest */
+ if (abs(vdec - freq) <= abs(vdec - out)) {
+ if (nv_device(priv)->chipset != 0x98)
+ mastv |= 0x00000c00;
+ divsv |= P1 << 8;
+ } else {
+ mastv |= 0x00000800;
+ divsv |= P2 << 8;
+ }
+
+ mastm |= 0x00000c00;
+ divsm |= 0x00000700;
+ }
+
+ /* dom6: nfi what this is, but we're limited to various combinations
+ * of the host clock frequency
+ */
+ if (dom6) {
+ if (clk_same(dom6, clk->read(clk, nv_clk_src_href))) {
+ mastv |= 0x00000000;
+ } else
+ if (clk_same(dom6, clk->read(clk, nv_clk_src_hclk))) {
+ mastv |= 0x08000000;
+ } else {
+ freq = clk->read(clk, nv_clk_src_hclk) * 3;
+ freq = calc_div(freq, dom6, &P1);
+
+ mastv |= 0x0c000000;
+ divsv |= P1;
+ }
+
+ mastm |= 0x0c000000;
+ divsm |= 0x00000007;
+ }
+
+ /* vdec/dom6: switch to "safe" clocks temporarily, update dividers
+ * and then switch to target clocks
+ */
+ clk_mask(hwsq, mast, mastm, 0x00000000);
+ clk_mask(hwsq, divs, divsm, divsv);
+ clk_mask(hwsq, mast, mastm, mastv);
+
+ /* core/shader: disconnect nvclk/sclk from their PLLs (nvclk to dom6,
+ * sclk to hclk) before reprogramming
+ */
+ if (nv_device(priv)->chipset < 0x92)
+ clk_mask(hwsq, mast, 0x001000b0, 0x00100080);
+ else
+ clk_mask(hwsq, mast, 0x000000b3, 0x00000081);
+
+ /* core: for the moment at least, always use nvpll */
+ freq = calc_pll(priv, 0x4028, core, &N, &M, &P1);
+ if (freq == 0)
+ return -ERANGE;
+
+ clk_mask(hwsq, nvpll[0], 0xc03f0100,
+ 0x80000000 | (P1 << 19) | (P1 << 16));
+ clk_mask(hwsq, nvpll[1], 0x0000ffff, (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-- && shader == (core << 1)) {
+ clk_mask(hwsq, spll[0], 0xc03f0100, (P1 << 19) | (P1 << 16));
+ clk_mask(hwsq, mast, 0x00100033, 0x00000023);
+ } else {
+ freq = calc_pll(priv, 0x4020, shader, &N, &M, &P1);
+ if (freq == 0)
+ return -ERANGE;
+
+ clk_mask(hwsq, spll[0], 0xc03f0100,
+ 0x80000000 | (P1 << 19) | (P1 << 16));
+ clk_mask(hwsq, spll[1], 0x0000ffff, (N << 8) | M);
+ clk_mask(hwsq, mast, 0x00100033, 0x00000033);
+ }
+
+ /* restore normal operation */
+ clk_setf(hwsq, 0x10, 0x01); /* enable fb */
+ clk_wait(hwsq, 0x00, 0x00); /* wait for fb enabled */
+ clk_wr32(hwsq, fifo, 0x00000000); /* un-block fifo */
+ return 0;
+}
+
+static int
+nv50_clock_prog(struct nouveau_clock *clk)
+{
+ struct nv50_clock_priv *priv = (void *)clk;
+ return clk_exec(&priv->hwsq, true);
+}
+
+static void
+nv50_clock_tidy(struct nouveau_clock *clk)
+{
+ struct nv50_clock_priv *priv = (void *)clk;
+ clk_exec(&priv->hwsq, false);
+}
+
+int
nv50_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 size,
struct nouveau_object **pobject)
{
+ struct nv50_clock_oclass *pclass = (void *)oclass;
struct nv50_clock_priv *priv;
int ret;
- ret = nouveau_clock_create(parent, engine, oclass, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, pclass->domains,
+ &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
- priv->base.pll_calc = nv04_clock_pll_calc;
+ priv->hwsq.r_fifo = hwsq_reg(0x002504);
+ priv->hwsq.r_spll[0] = hwsq_reg(0x004020);
+ priv->hwsq.r_spll[1] = hwsq_reg(0x004024);
+ priv->hwsq.r_nvpll[0] = hwsq_reg(0x004028);
+ priv->hwsq.r_nvpll[1] = hwsq_reg(0x00402c);
+ switch (nv_device(priv)->chipset) {
+ case 0x92:
+ case 0x94:
+ case 0x96:
+ priv->hwsq.r_divs = hwsq_reg(0x004800);
+ break;
+ default:
+ priv->hwsq.r_divs = hwsq_reg(0x004700);
+ break;
+ }
+ priv->hwsq.r_mast = hwsq_reg(0x00c040);
+
+ priv->base.read = nv50_clock_read;
+ priv->base.calc = nv50_clock_calc;
+ priv->base.prog = nv50_clock_prog;
+ priv->base.tidy = nv50_clock_tidy;
return 0;
}
-struct nouveau_oclass
-nv50_clock_oclass = {
- .handle = NV_SUBDEV(CLOCK, 0x50),
- .ofuncs = &(struct nouveau_ofuncs) {
+static struct nouveau_clocks
+nv50_domains[] = {
+ { nv_clk_src_crystal, 0xff },
+ { nv_clk_src_href , 0xff },
+ { nv_clk_src_core , 0xff, 0, "core", 1000 },
+ { nv_clk_src_shader , 0xff, 0, "shader", 1000 },
+ { nv_clk_src_mem , 0xff, 0, "memory", 1000 },
+ { nv_clk_src_max }
+};
+
+struct nouveau_oclass *
+nv50_clock_oclass = &(struct nv50_clock_oclass) {
+ .base.handle = NV_SUBDEV(CLOCK, 0x50),
+ .base.ofuncs = &(struct nouveau_ofuncs) {
.ctor = nv50_clock_ctor,
.dtor = _nouveau_clock_dtor,
.init = _nouveau_clock_init,
.fini = _nouveau_clock_fini,
},
-};
+ .domains = nv50_domains,
+}.base;
--- /dev/null
+#ifndef __NVKM_CLK_NV50_H__
+#define __NVKM_CLK_NV50_H__
+
+#include <subdev/bus.h>
+#include <subdev/bus/hwsq.h>
+#include <subdev/clock.h>
+
+struct nv50_clock_hwsq {
+ struct hwsq base;
+ struct hwsq_reg r_fifo;
+ struct hwsq_reg r_spll[2];
+ struct hwsq_reg r_nvpll[2];
+ struct hwsq_reg r_divs;
+ struct hwsq_reg r_mast;
+};
+
+struct nv50_clock_priv {
+ struct nouveau_clock base;
+ struct nv50_clock_hwsq hwsq;
+};
+
+int nv50_clock_ctor(struct nouveau_object *, struct nouveau_object *,
+ struct nouveau_oclass *, void *, u32,
+ struct nouveau_object **);
+
+struct nv50_clock_oclass {
+ struct nouveau_oclass base;
+ struct nouveau_clocks *domains;
+};
+
+#endif
--- /dev/null
+/*
+ * Copyright 2013 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 <bskeggs@redhat.com>
+ */
+
+#include "nv50.h"
+
+static struct nouveau_clocks
+nv84_domains[] = {
+ { nv_clk_src_crystal, 0xff },
+ { nv_clk_src_href , 0xff },
+ { nv_clk_src_core , 0xff, 0, "core", 1000 },
+ { nv_clk_src_shader , 0xff, 0, "shader", 1000 },
+ { nv_clk_src_mem , 0xff, 0, "memory", 1000 },
+ { nv_clk_src_vdec , 0xff },
+ { nv_clk_src_max }
+};
+
+struct nouveau_oclass *
+nv84_clock_oclass = &(struct nv50_clock_oclass) {
+ .base.handle = NV_SUBDEV(CLOCK, 0x84),
+ .base.ofuncs = &(struct nouveau_ofuncs) {
+ .ctor = nv50_clock_ctor,
+ .dtor = _nouveau_clock_dtor,
+ .init = _nouveau_clock_init,
+ .fini = _nouveau_clock_fini,
+ },
+ .domains = nv84_domains,
+}.base;
* Authors: Ben Skeggs
*/
-#include <subdev/clock.h>
#include <subdev/bios.h>
#include <subdev/bios/pll.h>
+#include <subdev/timer.h>
#include "pll.h"
+#include "nva3.h"
+
struct nva3_clock_priv {
struct nouveau_clock base;
+ struct nva3_clock_info eng[nv_clk_src_max];
};
+static u32 read_clk(struct nva3_clock_priv *, int, bool);
+static u32 read_pll(struct nva3_clock_priv *, int, u32);
+
+static u32
+read_vco(struct nva3_clock_priv *priv, int clk)
+{
+ u32 sctl = nv_rd32(priv, 0x4120 + (clk * 4));
+ if ((sctl & 0x00000030) != 0x00000030)
+ return read_pll(priv, 0x41, 0x00e820);
+ return read_pll(priv, 0x42, 0x00e8a0);
+}
+
+static u32
+read_clk(struct nva3_clock_priv *priv, int clk, bool ignore_en)
+{
+ u32 sctl, sdiv, sclk;
+
+ /* refclk for the 0xe8xx plls is a fixed frequency */
+ if (clk >= 0x40) {
+ if (nv_device(priv)->chipset == 0xaf) {
+ /* no joke.. seriously.. sigh.. */
+ return nv_rd32(priv, 0x00471c) * 1000;
+ }
+
+ return nv_device(priv)->crystal;
+ }
+
+ sctl = nv_rd32(priv, 0x4120 + (clk * 4));
+ if (!ignore_en && !(sctl & 0x00000100))
+ return 0;
+
+ switch (sctl & 0x00003000) {
+ case 0x00000000:
+ return nv_device(priv)->crystal;
+ case 0x00002000:
+ if (sctl & 0x00000040)
+ return 108000;
+ return 100000;
+ case 0x00003000:
+ sclk = read_vco(priv, clk);
+ sdiv = ((sctl & 0x003f0000) >> 16) + 2;
+ return (sclk * 2) / sdiv;
+ default:
+ return 0;
+ }
+}
+
+static u32
+read_pll(struct nva3_clock_priv *priv, int clk, u32 pll)
+{
+ u32 ctrl = nv_rd32(priv, pll + 0);
+ u32 sclk = 0, P = 1, N = 1, M = 1;
+
+ if (!(ctrl & 0x00000008)) {
+ if (ctrl & 0x00000001) {
+ u32 coef = nv_rd32(priv, pll + 4);
+ M = (coef & 0x000000ff) >> 0;
+ N = (coef & 0x0000ff00) >> 8;
+ P = (coef & 0x003f0000) >> 16;
+
+ /* no post-divider on these.. */
+ if ((pll & 0x00ff00) == 0x00e800)
+ P = 1;
+
+ sclk = read_clk(priv, 0x00 + clk, false);
+ }
+ } else {
+ sclk = read_clk(priv, 0x10 + clk, false);
+ }
+
+ if (M * P)
+ return sclk * N / (M * P);
+ return 0;
+}
+
+static int
+nva3_clock_read(struct nouveau_clock *clk, enum nv_clk_src src)
+{
+ struct nva3_clock_priv *priv = (void *)clk;
+
+ switch (src) {
+ case nv_clk_src_crystal:
+ return nv_device(priv)->crystal;
+ case nv_clk_src_href:
+ return 100000;
+ case nv_clk_src_core:
+ return read_pll(priv, 0x00, 0x4200);
+ case nv_clk_src_shader:
+ return read_pll(priv, 0x01, 0x4220);
+ case nv_clk_src_mem:
+ return read_pll(priv, 0x02, 0x4000);
+ case nv_clk_src_disp:
+ return read_clk(priv, 0x20, false);
+ case nv_clk_src_vdec:
+ return read_clk(priv, 0x21, false);
+ case nv_clk_src_daemon:
+ return read_clk(priv, 0x25, false);
+ default:
+ nv_error(clk, "invalid clock source %d\n", src);
+ return -EINVAL;
+ }
+}
+
int
-nva3_clock_pll_calc(struct nouveau_clock *clock, struct nvbios_pll *info,
- int clk, struct nouveau_pll_vals *pv)
+nva3_clock_info(struct nouveau_clock *clock, int clk, u32 pll, u32 khz,
+ struct nva3_clock_info *info)
{
- int ret, N, M, P;
+ struct nouveau_bios *bios = nouveau_bios(clock);
+ struct nva3_clock_priv *priv = (void *)clock;
+ struct nvbios_pll limits;
+ u32 oclk, sclk, sdiv;
+ int P, N, M, diff;
+ int ret;
+
+ info->pll = 0;
+ info->clk = 0;
+
+ switch (khz) {
+ case 27000:
+ info->clk = 0x00000100;
+ return khz;
+ case 100000:
+ info->clk = 0x00002100;
+ return khz;
+ case 108000:
+ info->clk = 0x00002140;
+ return khz;
+ default:
+ sclk = read_vco(priv, clk);
+ sdiv = min((sclk * 2) / (khz - 2999), (u32)65);
+ /* if the clock has a PLL attached, and we can get a within
+ * [-2, 3) MHz of a divider, we'll disable the PLL and use
+ * the divider instead.
+ *
+ * divider can go as low as 2, limited here because NVIDIA
+ * and the VBIOS on my NVA8 seem to prefer using the PLL
+ * for 810MHz - is there a good reason?
+ */
+ if (sdiv > 4) {
+ oclk = (sclk * 2) / sdiv;
+ diff = khz - oclk;
+ if (!pll || (diff >= -2000 && diff < 3000)) {
+ info->clk = (((sdiv - 2) << 16) | 0x00003100);
+ return oclk;
+ }
+ }
+
+ if (!pll)
+ return -ERANGE;
+ break;
+ }
- ret = nva3_pll_calc(nv_subdev(clock), info, clk, &N, NULL, &M, &P);
+ ret = nvbios_pll_parse(bios, pll, &limits);
+ if (ret)
+ return ret;
+
+ limits.refclk = read_clk(priv, clk - 0x10, true);
+ if (!limits.refclk)
+ return -EINVAL;
- if (ret > 0) {
- pv->refclk = info->refclk;
- pv->N1 = N;
- pv->M1 = M;
- pv->log2P = P;
+ ret = nva3_pll_calc(nv_subdev(priv), &limits, khz, &N, NULL, &M, &P);
+ if (ret >= 0) {
+ info->clk = nv_rd32(priv, 0x4120 + (clk * 4));
+ info->pll = (P << 16) | (N << 8) | M;
}
+
+ return ret ? ret : -ERANGE;
+}
+
+static int
+calc_clk(struct nva3_clock_priv *priv, struct nouveau_cstate *cstate,
+ int clk, u32 pll, int idx)
+{
+ int ret = nva3_clock_info(&priv->base, clk, pll, cstate->domain[idx],
+ &priv->eng[idx]);
+ if (ret >= 0)
+ return 0;
return ret;
}
+static void
+prog_pll(struct nva3_clock_priv *priv, int clk, u32 pll, int idx)
+{
+ struct nva3_clock_info *info = &priv->eng[idx];
+ const u32 src0 = 0x004120 + (clk * 4);
+ const u32 src1 = 0x004160 + (clk * 4);
+ const u32 ctrl = pll + 0;
+ const u32 coef = pll + 4;
+
+ if (info->pll) {
+ nv_mask(priv, src0, 0x00000101, 0x00000101);
+ nv_wr32(priv, coef, info->pll);
+ nv_mask(priv, ctrl, 0x00000015, 0x00000015);
+ nv_mask(priv, ctrl, 0x00000010, 0x00000000);
+ nv_wait(priv, ctrl, 0x00020000, 0x00020000);
+ nv_mask(priv, ctrl, 0x00000010, 0x00000010);
+ nv_mask(priv, ctrl, 0x00000008, 0x00000000);
+ nv_mask(priv, src1, 0x00000100, 0x00000000);
+ nv_mask(priv, src1, 0x00000001, 0x00000000);
+ } else {
+ nv_mask(priv, src1, 0x003f3141, 0x00000101 | info->clk);
+ nv_mask(priv, ctrl, 0x00000018, 0x00000018);
+ udelay(20);
+ nv_mask(priv, ctrl, 0x00000001, 0x00000000);
+ nv_mask(priv, src0, 0x00000100, 0x00000000);
+ nv_mask(priv, src0, 0x00000001, 0x00000000);
+ }
+}
+
+static void
+prog_clk(struct nva3_clock_priv *priv, int clk, int idx)
+{
+ struct nva3_clock_info *info = &priv->eng[idx];
+ nv_mask(priv, 0x004120 + (clk * 4), 0x003f3141, 0x00000101 | info->clk);
+}
+
+static int
+nva3_clock_calc(struct nouveau_clock *clk, struct nouveau_cstate *cstate)
+{
+ struct nva3_clock_priv *priv = (void *)clk;
+ int ret;
+
+ if ((ret = calc_clk(priv, cstate, 0x10, 0x4200, nv_clk_src_core)) ||
+ (ret = calc_clk(priv, cstate, 0x11, 0x4220, nv_clk_src_shader)) ||
+ (ret = calc_clk(priv, cstate, 0x20, 0x0000, nv_clk_src_disp)) ||
+ (ret = calc_clk(priv, cstate, 0x21, 0x0000, nv_clk_src_vdec)))
+ return ret;
+
+ return 0;
+}
+
+static int
+nva3_clock_prog(struct nouveau_clock *clk)
+{
+ struct nva3_clock_priv *priv = (void *)clk;
+ prog_pll(priv, 0x00, 0x004200, nv_clk_src_core);
+ prog_pll(priv, 0x01, 0x004220, nv_clk_src_shader);
+ prog_clk(priv, 0x20, nv_clk_src_disp);
+ prog_clk(priv, 0x21, nv_clk_src_vdec);
+ return 0;
+}
+
+static void
+nva3_clock_tidy(struct nouveau_clock *clk)
+{
+}
+
+static struct nouveau_clocks
+nva3_domain[] = {
+ { nv_clk_src_crystal, 0xff },
+ { nv_clk_src_href , 0xff },
+ { nv_clk_src_core , 0x00, 0, "core", 1000 },
+ { nv_clk_src_shader , 0x01, 0, "shader", 1000 },
+ { nv_clk_src_mem , 0x02, 0, "memory", 1000 },
+ { nv_clk_src_vdec , 0x03 },
+ { nv_clk_src_disp , 0x04 },
+ { nv_clk_src_max }
+};
static int
nva3_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nva3_clock_priv *priv;
int ret;
- ret = nouveau_clock_create(parent, engine, oclass, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, nva3_domain, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
- priv->base.pll_calc = nva3_clock_pll_calc;
+ priv->base.read = nva3_clock_read;
+ priv->base.calc = nva3_clock_calc;
+ priv->base.prog = nva3_clock_prog;
+ priv->base.tidy = nva3_clock_tidy;
return 0;
}
--- /dev/null
+#ifndef __NVKM_CLK_NVA3_H__
+#define __NVKM_CLK_NVA3_H__
+
+#include <subdev/clock.h>
+
+struct nva3_clock_info {
+ u32 clk;
+ u32 pll;
+};
+
+int nva3_clock_info(struct nouveau_clock *, int, u32, u32,
+ struct nva3_clock_info *);
+
+#endif
#include <subdev/clock.h>
#include <subdev/bios.h>
#include <subdev/bios/pll.h>
+#include <subdev/timer.h>
#include "pll.h"
+struct nvc0_clock_info {
+ u32 freq;
+ u32 ssel;
+ u32 mdiv;
+ u32 dsrc;
+ u32 ddiv;
+ u32 coef;
+};
+
struct nvc0_clock_priv {
struct nouveau_clock base;
+ struct nvc0_clock_info eng[16];
+};
+
+static u32 read_div(struct nvc0_clock_priv *, int, u32, u32);
+
+static u32
+read_vco(struct nvc0_clock_priv *priv, u32 dsrc)
+{
+ struct nouveau_clock *clk = &priv->base;
+ u32 ssrc = nv_rd32(priv, dsrc);
+ if (!(ssrc & 0x00000100))
+ return clk->read(clk, nv_clk_src_sppll0);
+ return clk->read(clk, nv_clk_src_sppll1);
+}
+
+static u32
+read_pll(struct nvc0_clock_priv *priv, u32 pll)
+{
+ struct nouveau_clock *clk = &priv->base;
+ u32 ctrl = nv_rd32(priv, pll + 0x00);
+ u32 coef = nv_rd32(priv, pll + 0x04);
+ u32 P = (coef & 0x003f0000) >> 16;
+ u32 N = (coef & 0x0000ff00) >> 8;
+ u32 M = (coef & 0x000000ff) >> 0;
+ u32 sclk;
+
+ if (!(ctrl & 0x00000001))
+ return 0;
+
+ switch (pll) {
+ case 0x00e800:
+ case 0x00e820:
+ sclk = nv_device(priv)->crystal;
+ P = 1;
+ break;
+ case 0x132000:
+ sclk = clk->read(clk, nv_clk_src_mpllsrc);
+ break;
+ case 0x132020:
+ sclk = clk->read(clk, nv_clk_src_mpllsrcref);
+ break;
+ case 0x137000:
+ case 0x137020:
+ case 0x137040:
+ case 0x1370e0:
+ sclk = read_div(priv, (pll & 0xff) / 0x20, 0x137120, 0x137140);
+ break;
+ default:
+ return 0;
+ }
+
+ return sclk * N / M / P;
+}
+
+static u32
+read_div(struct nvc0_clock_priv *priv, int doff, u32 dsrc, u32 dctl)
+{
+ u32 ssrc = nv_rd32(priv, dsrc + (doff * 4));
+ u32 sctl = nv_rd32(priv, dctl + (doff * 4));
+
+ switch (ssrc & 0x00000003) {
+ case 0:
+ if ((ssrc & 0x00030000) != 0x00030000)
+ return nv_device(priv)->crystal;
+ return 108000;
+ case 2:
+ return 100000;
+ case 3:
+ if (sctl & 0x80000000) {
+ u32 sclk = read_vco(priv, dsrc + (doff * 4));
+ u32 sdiv = (sctl & 0x0000003f) + 2;
+ return (sclk * 2) / sdiv;
+ }
+
+ return read_vco(priv, dsrc + (doff * 4));
+ default:
+ return 0;
+ }
+}
+
+static u32
+read_clk(struct nvc0_clock_priv *priv, int clk)
+{
+ u32 sctl = nv_rd32(priv, 0x137250 + (clk * 4));
+ u32 ssel = nv_rd32(priv, 0x137100);
+ u32 sclk, sdiv;
+
+ if (ssel & (1 << clk)) {
+ if (clk < 7)
+ sclk = read_pll(priv, 0x137000 + (clk * 0x20));
+ else
+ sclk = read_pll(priv, 0x1370e0);
+ sdiv = ((sctl & 0x00003f00) >> 8) + 2;
+ } else {
+ sclk = read_div(priv, clk, 0x137160, 0x1371d0);
+ sdiv = ((sctl & 0x0000003f) >> 0) + 2;
+ }
+
+ if (sctl & 0x80000000)
+ return (sclk * 2) / sdiv;
+
+ return sclk;
+}
+
+static int
+nvc0_clock_read(struct nouveau_clock *clk, enum nv_clk_src src)
+{
+ struct nouveau_device *device = nv_device(clk);
+ struct nvc0_clock_priv *priv = (void *)clk;
+
+ switch (src) {
+ case nv_clk_src_crystal:
+ return device->crystal;
+ case nv_clk_src_href:
+ return 100000;
+ case nv_clk_src_sppll0:
+ return read_pll(priv, 0x00e800);
+ case nv_clk_src_sppll1:
+ return read_pll(priv, 0x00e820);
+
+ case nv_clk_src_mpllsrcref:
+ return read_div(priv, 0, 0x137320, 0x137330);
+ case nv_clk_src_mpllsrc:
+ return read_pll(priv, 0x132020);
+ case nv_clk_src_mpll:
+ return read_pll(priv, 0x132000);
+ case nv_clk_src_mdiv:
+ return read_div(priv, 0, 0x137300, 0x137310);
+ case nv_clk_src_mem:
+ if (nv_rd32(priv, 0x1373f0) & 0x00000002)
+ return clk->read(clk, nv_clk_src_mpll);
+ return clk->read(clk, nv_clk_src_mdiv);
+
+ case nv_clk_src_gpc:
+ return read_clk(priv, 0x00);
+ case nv_clk_src_rop:
+ return read_clk(priv, 0x01);
+ case nv_clk_src_hubk07:
+ return read_clk(priv, 0x02);
+ case nv_clk_src_hubk06:
+ return read_clk(priv, 0x07);
+ case nv_clk_src_hubk01:
+ return read_clk(priv, 0x08);
+ case nv_clk_src_copy:
+ return read_clk(priv, 0x09);
+ case nv_clk_src_daemon:
+ return read_clk(priv, 0x0c);
+ case nv_clk_src_vdec:
+ return read_clk(priv, 0x0e);
+ default:
+ nv_error(clk, "invalid clock source %d\n", src);
+ return -EINVAL;
+ }
+}
+
+static u32
+calc_div(struct nvc0_clock_priv *priv, int clk, u32 ref, u32 freq, u32 *ddiv)
+{
+ u32 div = min((ref * 2) / freq, (u32)65);
+ if (div < 2)
+ div = 2;
+
+ *ddiv = div - 2;
+ return (ref * 2) / div;
+}
+
+static u32
+calc_src(struct nvc0_clock_priv *priv, int clk, u32 freq, u32 *dsrc, u32 *ddiv)
+{
+ u32 sclk;
+
+ /* use one of the fixed frequencies if possible */
+ *ddiv = 0x00000000;
+ switch (freq) {
+ case 27000:
+ case 108000:
+ *dsrc = 0x00000000;
+ if (freq == 108000)
+ *dsrc |= 0x00030000;
+ return freq;
+ case 100000:
+ *dsrc = 0x00000002;
+ return freq;
+ default:
+ *dsrc = 0x00000003;
+ break;
+ }
+
+ /* otherwise, calculate the closest divider */
+ sclk = read_vco(priv, 0x137160 + (clk * 4));
+ if (clk < 7)
+ sclk = calc_div(priv, clk, sclk, freq, ddiv);
+ return sclk;
+}
+
+static u32
+calc_pll(struct nvc0_clock_priv *priv, int clk, u32 freq, u32 *coef)
+{
+ struct nouveau_bios *bios = nouveau_bios(priv);
+ struct nvbios_pll limits;
+ int N, M, P, ret;
+
+ ret = nvbios_pll_parse(bios, 0x137000 + (clk * 0x20), &limits);
+ if (ret)
+ return 0;
+
+ limits.refclk = read_div(priv, clk, 0x137120, 0x137140);
+ if (!limits.refclk)
+ return 0;
+
+ ret = nva3_pll_calc(nv_subdev(priv), &limits, freq, &N, NULL, &M, &P);
+ if (ret <= 0)
+ return 0;
+
+ *coef = (P << 16) | (N << 8) | M;
+ return ret;
+}
+
+static int
+calc_clk(struct nvc0_clock_priv *priv,
+ struct nouveau_cstate *cstate, int clk, int dom)
+{
+ struct nvc0_clock_info *info = &priv->eng[clk];
+ u32 freq = cstate->domain[dom];
+ u32 src0, div0, div1D, div1P = 0;
+ u32 clk0, clk1 = 0;
+
+ /* invalid clock domain */
+ if (!freq)
+ return 0;
+
+ /* first possible path, using only dividers */
+ clk0 = calc_src(priv, clk, freq, &src0, &div0);
+ clk0 = calc_div(priv, clk, clk0, freq, &div1D);
+
+ /* see if we can get any closer using PLLs */
+ if (clk0 != freq && (0x00004387 & (1 << clk))) {
+ if (clk <= 7)
+ clk1 = calc_pll(priv, clk, freq, &info->coef);
+ else
+ clk1 = cstate->domain[nv_clk_src_hubk06];
+ clk1 = calc_div(priv, clk, clk1, freq, &div1P);
+ }
+
+ /* select the method which gets closest to target freq */
+ if (abs((int)freq - clk0) <= abs((int)freq - clk1)) {
+ info->dsrc = src0;
+ if (div0) {
+ info->ddiv |= 0x80000000;
+ info->ddiv |= div0 << 8;
+ info->ddiv |= div0;
+ }
+ if (div1D) {
+ info->mdiv |= 0x80000000;
+ info->mdiv |= div1D;
+ }
+ info->ssel = info->coef = 0;
+ info->freq = clk0;
+ } else {
+ if (div1P) {
+ info->mdiv |= 0x80000000;
+ info->mdiv |= div1P << 8;
+ }
+ info->ssel = (1 << clk);
+ info->freq = clk1;
+ }
+
+ return 0;
+}
+
+static int
+nvc0_clock_calc(struct nouveau_clock *clk, struct nouveau_cstate *cstate)
+{
+ struct nvc0_clock_priv *priv = (void *)clk;
+ int ret;
+
+ if ((ret = calc_clk(priv, cstate, 0x00, nv_clk_src_gpc)) ||
+ (ret = calc_clk(priv, cstate, 0x01, nv_clk_src_rop)) ||
+ (ret = calc_clk(priv, cstate, 0x02, nv_clk_src_hubk07)) ||
+ (ret = calc_clk(priv, cstate, 0x07, nv_clk_src_hubk06)) ||
+ (ret = calc_clk(priv, cstate, 0x08, nv_clk_src_hubk01)) ||
+ (ret = calc_clk(priv, cstate, 0x09, nv_clk_src_copy)) ||
+ (ret = calc_clk(priv, cstate, 0x0c, nv_clk_src_daemon)) ||
+ (ret = calc_clk(priv, cstate, 0x0e, nv_clk_src_vdec)))
+ return ret;
+
+ return 0;
+}
+
+static void
+nvc0_clock_prog_0(struct nvc0_clock_priv *priv, int clk)
+{
+ struct nvc0_clock_info *info = &priv->eng[clk];
+ if (clk < 7 && !info->ssel) {
+ nv_mask(priv, 0x1371d0 + (clk * 0x04), 0x80003f3f, info->ddiv);
+ nv_wr32(priv, 0x137160 + (clk * 0x04), info->dsrc);
+ }
+}
+
+static void
+nvc0_clock_prog_1(struct nvc0_clock_priv *priv, int clk)
+{
+ nv_mask(priv, 0x137100, (1 << clk), 0x00000000);
+ nv_wait(priv, 0x137100, (1 << clk), 0x00000000);
+}
+
+static void
+nvc0_clock_prog_2(struct nvc0_clock_priv *priv, int clk)
+{
+ struct nvc0_clock_info *info = &priv->eng[clk];
+ const u32 addr = 0x137000 + (clk * 0x20);
+ if (clk <= 7) {
+ nv_mask(priv, addr + 0x00, 0x00000004, 0x00000000);
+ nv_mask(priv, addr + 0x00, 0x00000001, 0x00000000);
+ if (info->coef) {
+ nv_wr32(priv, addr + 0x04, info->coef);
+ nv_mask(priv, addr + 0x00, 0x00000001, 0x00000001);
+ nv_wait(priv, addr + 0x00, 0x00020000, 0x00020000);
+ nv_mask(priv, addr + 0x00, 0x00020004, 0x00000004);
+ }
+ }
+}
+
+static void
+nvc0_clock_prog_3(struct nvc0_clock_priv *priv, int clk)
+{
+ struct nvc0_clock_info *info = &priv->eng[clk];
+ if (info->ssel) {
+ nv_mask(priv, 0x137100, (1 << clk), info->ssel);
+ nv_wait(priv, 0x137100, (1 << clk), info->ssel);
+ }
+}
+
+static void
+nvc0_clock_prog_4(struct nvc0_clock_priv *priv, int clk)
+{
+ struct nvc0_clock_info *info = &priv->eng[clk];
+ nv_mask(priv, 0x137250 + (clk * 0x04), 0x00003f3f, info->mdiv);
+}
+
+static int
+nvc0_clock_prog(struct nouveau_clock *clk)
+{
+ struct nvc0_clock_priv *priv = (void *)clk;
+ struct {
+ void (*exec)(struct nvc0_clock_priv *, int);
+ } stage[] = {
+ { nvc0_clock_prog_0 }, /* div programming */
+ { nvc0_clock_prog_1 }, /* select div mode */
+ { nvc0_clock_prog_2 }, /* (maybe) program pll */
+ { nvc0_clock_prog_3 }, /* (maybe) select pll mode */
+ { nvc0_clock_prog_4 }, /* final divider */
+ };
+ int i, j;
+
+ for (i = 0; i < ARRAY_SIZE(stage); i++) {
+ for (j = 0; j < ARRAY_SIZE(priv->eng); j++) {
+ if (!priv->eng[j].freq)
+ continue;
+ stage[i].exec(priv, j);
+ }
+ }
+
+ return 0;
+}
+
+static void
+nvc0_clock_tidy(struct nouveau_clock *clk)
+{
+ struct nvc0_clock_priv *priv = (void *)clk;
+ memset(priv->eng, 0x00, sizeof(priv->eng));
+}
+
+static struct nouveau_clocks
+nvc0_domain[] = {
+ { nv_clk_src_crystal, 0xff },
+ { nv_clk_src_href , 0xff },
+ { nv_clk_src_hubk06 , 0x00 },
+ { nv_clk_src_hubk01 , 0x01 },
+ { nv_clk_src_copy , 0x02 },
+ { nv_clk_src_gpc , 0x03, 0, "core", 2000 },
+ { nv_clk_src_rop , 0x04 },
+ { nv_clk_src_mem , 0x05, 0, "memory", 1000 },
+ { nv_clk_src_vdec , 0x06 },
+ { nv_clk_src_daemon , 0x0a },
+ { nv_clk_src_hubk07 , 0x0b },
+ { nv_clk_src_max }
};
static int
struct nvc0_clock_priv *priv;
int ret;
- ret = nouveau_clock_create(parent, engine, oclass, &priv);
+ ret = nouveau_clock_create(parent, engine, oclass, nvc0_domain, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
- priv->base.pll_calc = nva3_clock_pll_calc;
+ priv->base.read = nvc0_clock_read;
+ priv->base.calc = nvc0_clock_calc;
+ priv->base.prog = nvc0_clock_prog;
+ priv->base.tidy = nvc0_clock_tidy;
return 0;
}
--- /dev/null
+/*
+ * Copyright 2013 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 <subdev/clock.h>
+#include <subdev/timer.h>
+#include <subdev/bios.h>
+#include <subdev/bios/pll.h>
+
+#include "pll.h"
+
+struct nve0_clock_info {
+ u32 freq;
+ u32 ssel;
+ u32 mdiv;
+ u32 dsrc;
+ u32 ddiv;
+ u32 coef;
+};
+
+struct nve0_clock_priv {
+ struct nouveau_clock base;
+ struct nve0_clock_info eng[16];
+};
+
+static u32 read_div(struct nve0_clock_priv *, int, u32, u32);
+static u32 read_pll(struct nve0_clock_priv *, u32);
+
+static u32
+read_vco(struct nve0_clock_priv *priv, u32 dsrc)
+{
+ u32 ssrc = nv_rd32(priv, dsrc);
+ if (!(ssrc & 0x00000100))
+ return read_pll(priv, 0x00e800);
+ return read_pll(priv, 0x00e820);
+}
+
+static u32
+read_pll(struct nve0_clock_priv *priv, u32 pll)
+{
+ u32 ctrl = nv_rd32(priv, pll + 0x00);
+ u32 coef = nv_rd32(priv, pll + 0x04);
+ u32 P = (coef & 0x003f0000) >> 16;
+ u32 N = (coef & 0x0000ff00) >> 8;
+ u32 M = (coef & 0x000000ff) >> 0;
+ u32 sclk;
+ u16 fN = 0xf000;
+
+ if (!(ctrl & 0x00000001))
+ return 0;
+
+ switch (pll) {
+ case 0x00e800:
+ case 0x00e820:
+ sclk = nv_device(priv)->crystal;
+ P = 1;
+ break;
+ case 0x132000:
+ sclk = read_pll(priv, 0x132020);
+ P = (coef & 0x10000000) ? 2 : 1;
+ break;
+ case 0x132020:
+ sclk = read_div(priv, 0, 0x137320, 0x137330);
+ fN = nv_rd32(priv, pll + 0x10) >> 16;
+ break;
+ case 0x137000:
+ case 0x137020:
+ case 0x137040:
+ case 0x1370e0:
+ sclk = read_div(priv, (pll & 0xff) / 0x20, 0x137120, 0x137140);
+ break;
+ default:
+ return 0;
+ }
+
+ if (P == 0)
+ P = 1;
+
+ sclk = (sclk * N) + (((u16)(fN + 4096) * sclk) >> 13);
+ return sclk / (M * P);
+}
+
+static u32
+read_div(struct nve0_clock_priv *priv, int doff, u32 dsrc, u32 dctl)
+{
+ u32 ssrc = nv_rd32(priv, dsrc + (doff * 4));
+ u32 sctl = nv_rd32(priv, dctl + (doff * 4));
+
+ switch (ssrc & 0x00000003) {
+ case 0:
+ if ((ssrc & 0x00030000) != 0x00030000)
+ return nv_device(priv)->crystal;
+ return 108000;
+ case 2:
+ return 100000;
+ case 3:
+ if (sctl & 0x80000000) {
+ u32 sclk = read_vco(priv, dsrc + (doff * 4));
+ u32 sdiv = (sctl & 0x0000003f) + 2;
+ return (sclk * 2) / sdiv;
+ }
+
+ return read_vco(priv, dsrc + (doff * 4));
+ default:
+ return 0;
+ }
+}
+
+static u32
+read_mem(struct nve0_clock_priv *priv)
+{
+ switch (nv_rd32(priv, 0x1373f4) & 0x0000000f) {
+ case 1: return read_pll(priv, 0x132020);
+ case 2: return read_pll(priv, 0x132000);
+ default:
+ return 0;
+ }
+}
+
+static u32
+read_clk(struct nve0_clock_priv *priv, int clk)
+{
+ u32 sctl = nv_rd32(priv, 0x137250 + (clk * 4));
+ u32 sclk, sdiv;
+
+ if (clk < 7) {
+ u32 ssel = nv_rd32(priv, 0x137100);
+ if (ssel & (1 << clk)) {
+ sclk = read_pll(priv, 0x137000 + (clk * 0x20));
+ sdiv = 1;
+ } else {
+ sclk = read_div(priv, clk, 0x137160, 0x1371d0);
+ sdiv = 0;
+ }
+ } else {
+ u32 ssrc = nv_rd32(priv, 0x137160 + (clk * 0x04));
+ if ((ssrc & 0x00000003) == 0x00000003) {
+ sclk = read_div(priv, clk, 0x137160, 0x1371d0);
+ if (ssrc & 0x00000100) {
+ if (ssrc & 0x40000000)
+ sclk = read_pll(priv, 0x1370e0);
+ sdiv = 1;
+ } else {
+ sdiv = 0;
+ }
+ } else {
+ sclk = read_div(priv, clk, 0x137160, 0x1371d0);
+ sdiv = 0;
+ }
+ }
+
+ if (sctl & 0x80000000) {
+ if (sdiv)
+ sdiv = ((sctl & 0x00003f00) >> 8) + 2;
+ else
+ sdiv = ((sctl & 0x0000003f) >> 0) + 2;
+ return (sclk * 2) / sdiv;
+ }
+
+ return sclk;
+}
+
+static int
+nve0_clock_read(struct nouveau_clock *clk, enum nv_clk_src src)
+{
+ struct nouveau_device *device = nv_device(clk);
+ struct nve0_clock_priv *priv = (void *)clk;
+
+ switch (src) {
+ case nv_clk_src_crystal:
+ return device->crystal;
+ case nv_clk_src_href:
+ return 100000;
+ case nv_clk_src_mem:
+ return read_mem(priv);
+ case nv_clk_src_gpc:
+ return read_clk(priv, 0x00);
+ case nv_clk_src_rop:
+ return read_clk(priv, 0x01);
+ case nv_clk_src_hubk07:
+ return read_clk(priv, 0x02);
+ case nv_clk_src_hubk06:
+ return read_clk(priv, 0x07);
+ case nv_clk_src_hubk01:
+ return read_clk(priv, 0x08);
+ case nv_clk_src_daemon:
+ return read_clk(priv, 0x0c);
+ case nv_clk_src_vdec:
+ return read_clk(priv, 0x0e);
+ default:
+ nv_error(clk, "invalid clock source %d\n", src);
+ return -EINVAL;
+ }
+}
+
+static u32
+calc_div(struct nve0_clock_priv *priv, int clk, u32 ref, u32 freq, u32 *ddiv)
+{
+ u32 div = min((ref * 2) / freq, (u32)65);
+ if (div < 2)
+ div = 2;
+
+ *ddiv = div - 2;
+ return (ref * 2) / div;
+}
+
+static u32
+calc_src(struct nve0_clock_priv *priv, int clk, u32 freq, u32 *dsrc, u32 *ddiv)
+{
+ u32 sclk;
+
+ /* use one of the fixed frequencies if possible */
+ *ddiv = 0x00000000;
+ switch (freq) {
+ case 27000:
+ case 108000:
+ *dsrc = 0x00000000;
+ if (freq == 108000)
+ *dsrc |= 0x00030000;
+ return freq;
+ case 100000:
+ *dsrc = 0x00000002;
+ return freq;
+ default:
+ *dsrc = 0x00000003;
+ break;
+ }
+
+ /* otherwise, calculate the closest divider */
+ sclk = read_vco(priv, 0x137160 + (clk * 4));
+ if (clk < 7)
+ sclk = calc_div(priv, clk, sclk, freq, ddiv);
+ return sclk;
+}
+
+static u32
+calc_pll(struct nve0_clock_priv *priv, int clk, u32 freq, u32 *coef)
+{
+ struct nouveau_bios *bios = nouveau_bios(priv);
+ struct nvbios_pll limits;
+ int N, M, P, ret;
+
+ ret = nvbios_pll_parse(bios, 0x137000 + (clk * 0x20), &limits);
+ if (ret)
+ return 0;
+
+ limits.refclk = read_div(priv, clk, 0x137120, 0x137140);
+ if (!limits.refclk)
+ return 0;
+
+ ret = nva3_pll_calc(nv_subdev(priv), &limits, freq, &N, NULL, &M, &P);
+ if (ret <= 0)
+ return 0;
+
+ *coef = (P << 16) | (N << 8) | M;
+ return ret;
+}
+
+static int
+calc_clk(struct nve0_clock_priv *priv,
+ struct nouveau_cstate *cstate, int clk, int dom)
+{
+ struct nve0_clock_info *info = &priv->eng[clk];
+ u32 freq = cstate->domain[dom];
+ u32 src0, div0, div1D, div1P = 0;
+ u32 clk0, clk1 = 0;
+
+ /* invalid clock domain */
+ if (!freq)
+ return 0;
+
+ /* first possible path, using only dividers */
+ clk0 = calc_src(priv, clk, freq, &src0, &div0);
+ clk0 = calc_div(priv, clk, clk0, freq, &div1D);
+
+ /* see if we can get any closer using PLLs */
+ if (clk0 != freq && (0x0000ff87 & (1 << clk))) {
+ if (clk <= 7)
+ clk1 = calc_pll(priv, clk, freq, &info->coef);
+ else
+ clk1 = cstate->domain[nv_clk_src_hubk06];
+ clk1 = calc_div(priv, clk, clk1, freq, &div1P);
+ }
+
+ /* select the method which gets closest to target freq */
+ if (abs((int)freq - clk0) <= abs((int)freq - clk1)) {
+ info->dsrc = src0;
+ if (div0) {
+ info->ddiv |= 0x80000000;
+ info->ddiv |= div0 << 8;
+ info->ddiv |= div0;
+ }
+ if (div1D) {
+ info->mdiv |= 0x80000000;
+ info->mdiv |= div1D;
+ }
+ info->ssel = 0;
+ info->freq = clk0;
+ } else {
+ if (div1P) {
+ info->mdiv |= 0x80000000;
+ info->mdiv |= div1P << 8;
+ }
+ info->ssel = (1 << clk);
+ info->dsrc = 0x40000100;
+ info->freq = clk1;
+ }
+
+ return 0;
+}
+
+static int
+nve0_clock_calc(struct nouveau_clock *clk, struct nouveau_cstate *cstate)
+{
+ struct nve0_clock_priv *priv = (void *)clk;
+ int ret;
+
+ if ((ret = calc_clk(priv, cstate, 0x00, nv_clk_src_gpc)) ||
+ (ret = calc_clk(priv, cstate, 0x01, nv_clk_src_rop)) ||
+ (ret = calc_clk(priv, cstate, 0x02, nv_clk_src_hubk07)) ||
+ (ret = calc_clk(priv, cstate, 0x07, nv_clk_src_hubk06)) ||
+ (ret = calc_clk(priv, cstate, 0x08, nv_clk_src_hubk01)) ||
+ (ret = calc_clk(priv, cstate, 0x0c, nv_clk_src_daemon)) ||
+ (ret = calc_clk(priv, cstate, 0x0e, nv_clk_src_vdec)))
+ return ret;
+
+ return 0;
+}
+
+static void
+nve0_clock_prog_0(struct nve0_clock_priv *priv, int clk)
+{
+ struct nve0_clock_info *info = &priv->eng[clk];
+ if (!info->ssel) {
+ nv_mask(priv, 0x1371d0 + (clk * 0x04), 0x80003f3f, info->ddiv);
+ nv_wr32(priv, 0x137160 + (clk * 0x04), info->dsrc);
+ }
+}
+
+static void
+nve0_clock_prog_1_0(struct nve0_clock_priv *priv, int clk)
+{
+ nv_mask(priv, 0x137100, (1 << clk), 0x00000000);
+ nv_wait(priv, 0x137100, (1 << clk), 0x00000000);
+}
+
+static void
+nve0_clock_prog_1_1(struct nve0_clock_priv *priv, int clk)
+{
+ nv_mask(priv, 0x137160 + (clk * 0x04), 0x00000100, 0x00000000);
+}
+
+static void
+nve0_clock_prog_2(struct nve0_clock_priv *priv, int clk)
+{
+ struct nve0_clock_info *info = &priv->eng[clk];
+ const u32 addr = 0x137000 + (clk * 0x20);
+ nv_mask(priv, addr + 0x00, 0x00000004, 0x00000000);
+ nv_mask(priv, addr + 0x00, 0x00000001, 0x00000000);
+ if (info->coef) {
+ nv_wr32(priv, addr + 0x04, info->coef);
+ nv_mask(priv, addr + 0x00, 0x00000001, 0x00000001);
+ nv_wait(priv, addr + 0x00, 0x00020000, 0x00020000);
+ nv_mask(priv, addr + 0x00, 0x00020004, 0x00000004);
+ }
+}
+
+static void
+nve0_clock_prog_3(struct nve0_clock_priv *priv, int clk)
+{
+ struct nve0_clock_info *info = &priv->eng[clk];
+ nv_mask(priv, 0x137250 + (clk * 0x04), 0x00003f3f, info->mdiv);
+}
+
+static void
+nve0_clock_prog_4_0(struct nve0_clock_priv *priv, int clk)
+{
+ struct nve0_clock_info *info = &priv->eng[clk];
+ if (info->ssel) {
+ nv_mask(priv, 0x137100, (1 << clk), info->ssel);
+ nv_wait(priv, 0x137100, (1 << clk), info->ssel);
+ }
+}
+
+static void
+nve0_clock_prog_4_1(struct nve0_clock_priv *priv, int clk)
+{
+ struct nve0_clock_info *info = &priv->eng[clk];
+ if (info->ssel) {
+ nv_mask(priv, 0x137160 + (clk * 0x04), 0x40000000, 0x40000000);
+ nv_mask(priv, 0x137160 + (clk * 0x04), 0x00000100, 0x00000100);
+ }
+}
+
+static int
+nve0_clock_prog(struct nouveau_clock *clk)
+{
+ struct nve0_clock_priv *priv = (void *)clk;
+ struct {
+ u32 mask;
+ void (*exec)(struct nve0_clock_priv *, int);
+ } stage[] = {
+ { 0x007f, nve0_clock_prog_0 }, /* div programming */
+ { 0x007f, nve0_clock_prog_1_0 }, /* select div mode */
+ { 0xff80, nve0_clock_prog_1_1 },
+ { 0x00ff, nve0_clock_prog_2 }, /* (maybe) program pll */
+ { 0xff80, nve0_clock_prog_3 }, /* final divider */
+ { 0x007f, nve0_clock_prog_4_0 }, /* (maybe) select pll mode */
+ { 0xff80, nve0_clock_prog_4_1 },
+ };
+ int i, j;
+
+ for (i = 0; i < ARRAY_SIZE(stage); i++) {
+ for (j = 0; j < ARRAY_SIZE(priv->eng); j++) {
+ if (!(stage[i].mask & (1 << j)))
+ continue;
+ if (!priv->eng[j].freq)
+ continue;
+ stage[i].exec(priv, j);
+ }
+ }
+
+ return 0;
+}
+
+static void
+nve0_clock_tidy(struct nouveau_clock *clk)
+{
+ struct nve0_clock_priv *priv = (void *)clk;
+ memset(priv->eng, 0x00, sizeof(priv->eng));
+}
+
+static struct nouveau_clocks
+nve0_domain[] = {
+ { nv_clk_src_crystal, 0xff },
+ { nv_clk_src_href , 0xff },
+ { nv_clk_src_gpc , 0x00, NVKM_CLK_DOM_FLAG_CORE, "core", 2000 },
+ { nv_clk_src_hubk07 , 0x01, NVKM_CLK_DOM_FLAG_CORE },
+ { nv_clk_src_rop , 0x02, NVKM_CLK_DOM_FLAG_CORE },
+ { nv_clk_src_mem , 0x03, 0, "memory", 1000 },
+ { nv_clk_src_hubk06 , 0x04, NVKM_CLK_DOM_FLAG_CORE },
+ { nv_clk_src_hubk01 , 0x05 },
+ { nv_clk_src_vdec , 0x06 },
+ { nv_clk_src_daemon , 0x07 },
+ { nv_clk_src_max }
+};
+
+static int
+nve0_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+ struct nouveau_oclass *oclass, void *data, u32 size,
+ struct nouveau_object **pobject)
+{
+ struct nve0_clock_priv *priv;
+ int ret;
+
+ ret = nouveau_clock_create(parent, engine, oclass, nve0_domain, &priv);
+ *pobject = nv_object(priv);
+ if (ret)
+ return ret;
+
+ priv->base.read = nve0_clock_read;
+ priv->base.calc = nve0_clock_calc;
+ priv->base.prog = nve0_clock_prog;
+ priv->base.tidy = nve0_clock_tidy;
+ return 0;
+}
+
+struct nouveau_oclass
+nve0_clock_oclass = {
+ .handle = NV_SUBDEV(CLOCK, 0xe0),
+ .ofuncs = &(struct nouveau_ofuncs) {
+ .ctor = nve0_clock_ctor,
+ .dtor = _nouveau_clock_dtor,
+ .init = _nouveau_clock_init,
+ .fini = _nouveau_clock_fini,
+ },
+};
{
int ret;
- if (!info->vco2.max_freq) {
+ if (!info->vco2.max_freq || !N2) {
ret = getMNP_single(subdev, info, freq, N1, M1, P);
- *N2 = 1;
- *M2 = 1;
+ if (N2) {
+ *N2 = 1;
+ *M2 = 1;
+ }
} else {
ret = getMNP_double(subdev, info, freq, N1, M1, N2, M2, P);
}
--- /dev/null
+#ifndef __NVKM_CLK_SEQ_H__
+#define __NVKM_CLK_SEQ_H__
+
+#include <subdev/bus.h>
+#include <subdev/bus/hwsq.h>
+
+#define clk_init(s,p) hwsq_init(&(s)->base, (p))
+#define clk_exec(s,e) hwsq_exec(&(s)->base, (e))
+#define clk_have(s,r) ((s)->r_##r.addr != 0x000000)
+#define clk_rd32(s,r) hwsq_rd32(&(s)->base, &(s)->r_##r)
+#define clk_wr32(s,r,d) hwsq_wr32(&(s)->base, &(s)->r_##r, (d))
+#define clk_mask(s,r,m,d) hwsq_mask(&(s)->base, &(s)->r_##r, (m), (d))
+#define clk_setf(s,f,d) hwsq_setf(&(s)->base, (f), (d))
+#define clk_wait(s,f,d) hwsq_wait(&(s)->base, (f), (d))
+#define clk_nsec(s,n) hwsq_nsec(&(s)->base, (n))
+
+#endif
projects / cascardo / linux.git / commitdiff