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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c282
1 files changed, 138 insertions, 144 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c
index c54417b146c7..1c21b8b53b78 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c
@@ -21,15 +21,15 @@
*
* Authors: Ben Skeggs
*/
+#define mcp77_clk(p) container_of((p), struct mcp77_clk, base)
#include "gt215.h"
#include "pll.h"
-#include <core/device.h>
#include <subdev/bios.h>
#include <subdev/bios/pll.h>
#include <subdev/timer.h>
-struct mcp77_clk_priv {
+struct mcp77_clk {
struct nvkm_clk base;
enum nv_clk_src csrc, ssrc, vsrc;
u32 cctrl, sctrl;
@@ -39,27 +39,29 @@ struct mcp77_clk_priv {
};
static u32
-read_div(struct nvkm_clk *clk)
+read_div(struct mcp77_clk *clk)
{
- return nv_rd32(clk, 0x004600);
+ struct nvkm_device *device = clk->base.subdev.device;
+ return nvkm_rd32(device, 0x004600);
}
static u32
-read_pll(struct nvkm_clk *clk, u32 base)
+read_pll(struct mcp77_clk *clk, u32 base)
{
- u32 ctrl = nv_rd32(clk, base + 0);
- u32 coef = nv_rd32(clk, base + 4);
- u32 ref = clk->read(clk, nv_clk_src_href);
+ struct nvkm_device *device = clk->base.subdev.device;
+ u32 ctrl = nvkm_rd32(device, base + 0);
+ u32 coef = nvkm_rd32(device, base + 4);
+ u32 ref = nvkm_clk_read(&clk->base, nv_clk_src_href);
u32 post_div = 0;
u32 clock = 0;
int N1, M1;
switch (base){
case 0x4020:
- post_div = 1 << ((nv_rd32(clk, 0x4070) & 0x000f0000) >> 16);
+ post_div = 1 << ((nvkm_rd32(device, 0x4070) & 0x000f0000) >> 16);
break;
case 0x4028:
- post_div = (nv_rd32(clk, 0x4040) & 0x000f0000) >> 16;
+ post_div = (nvkm_rd32(device, 0x4040) & 0x000f0000) >> 16;
break;
default:
break;
@@ -76,59 +78,61 @@ read_pll(struct nvkm_clk *clk, u32 base)
}
static int
-mcp77_clk_read(struct nvkm_clk *clk, enum nv_clk_src src)
+mcp77_clk_read(struct nvkm_clk *base, enum nv_clk_src src)
{
- struct mcp77_clk_priv *priv = (void *)clk;
- u32 mast = nv_rd32(clk, 0x00c054);
+ struct mcp77_clk *clk = mcp77_clk(base);
+ struct nvkm_subdev *subdev = &clk->base.subdev;
+ struct nvkm_device *device = subdev->device;
+ u32 mast = nvkm_rd32(device, 0x00c054);
u32 P = 0;
switch (src) {
case nv_clk_src_crystal:
- return nv_device(priv)->crystal;
+ return device->crystal;
case nv_clk_src_href:
return 100000; /* PCIE reference clock */
case nv_clk_src_hclkm4:
- return clk->read(clk, nv_clk_src_href) * 4;
+ return nvkm_clk_read(&clk->base, nv_clk_src_href) * 4;
case nv_clk_src_hclkm2d3:
- return clk->read(clk, nv_clk_src_href) * 2 / 3;
+ return nvkm_clk_read(&clk->base, nv_clk_src_href) * 2 / 3;
case nv_clk_src_host:
switch (mast & 0x000c0000) {
- case 0x00000000: return clk->read(clk, nv_clk_src_hclkm2d3);
+ case 0x00000000: return nvkm_clk_read(&clk->base, nv_clk_src_hclkm2d3);
case 0x00040000: break;
- case 0x00080000: return clk->read(clk, nv_clk_src_hclkm4);
- case 0x000c0000: return clk->read(clk, nv_clk_src_cclk);
+ case 0x00080000: return nvkm_clk_read(&clk->base, nv_clk_src_hclkm4);
+ case 0x000c0000: return nvkm_clk_read(&clk->base, nv_clk_src_cclk);
}
break;
case nv_clk_src_core:
- P = (nv_rd32(clk, 0x004028) & 0x00070000) >> 16;
+ P = (nvkm_rd32(device, 0x004028) & 0x00070000) >> 16;
switch (mast & 0x00000003) {
- case 0x00000000: return clk->read(clk, nv_clk_src_crystal) >> P;
+ case 0x00000000: return nvkm_clk_read(&clk->base, nv_clk_src_crystal) >> P;
case 0x00000001: return 0;
- case 0x00000002: return clk->read(clk, nv_clk_src_hclkm4) >> P;
+ case 0x00000002: return nvkm_clk_read(&clk->base, nv_clk_src_hclkm4) >> P;
case 0x00000003: return read_pll(clk, 0x004028) >> P;
}
break;
case nv_clk_src_cclk:
if ((mast & 0x03000000) != 0x03000000)
- return clk->read(clk, nv_clk_src_core);
+ return nvkm_clk_read(&clk->base, nv_clk_src_core);
if ((mast & 0x00000200) == 0x00000000)
- return clk->read(clk, nv_clk_src_core);
+ return nvkm_clk_read(&clk->base, nv_clk_src_core);
switch (mast & 0x00000c00) {
- case 0x00000000: return clk->read(clk, nv_clk_src_href);
- case 0x00000400: return clk->read(clk, nv_clk_src_hclkm4);
- case 0x00000800: return clk->read(clk, nv_clk_src_hclkm2d3);
+ case 0x00000000: return nvkm_clk_read(&clk->base, nv_clk_src_href);
+ case 0x00000400: return nvkm_clk_read(&clk->base, nv_clk_src_hclkm4);
+ case 0x00000800: return nvkm_clk_read(&clk->base, nv_clk_src_hclkm2d3);
default: return 0;
}
case nv_clk_src_shader:
- P = (nv_rd32(clk, 0x004020) & 0x00070000) >> 16;
+ P = (nvkm_rd32(device, 0x004020) & 0x00070000) >> 16;
switch (mast & 0x00000030) {
case 0x00000000:
if (mast & 0x00000040)
- return clk->read(clk, nv_clk_src_href) >> P;
- return clk->read(clk, nv_clk_src_crystal) >> P;
+ return nvkm_clk_read(&clk->base, nv_clk_src_href) >> P;
+ return nvkm_clk_read(&clk->base, nv_clk_src_crystal) >> P;
case 0x00000010: break;
case 0x00000020: return read_pll(clk, 0x004028) >> P;
case 0x00000030: return read_pll(clk, 0x004020) >> P;
@@ -142,7 +146,7 @@ mcp77_clk_read(struct nvkm_clk *clk, enum nv_clk_src src)
switch (mast & 0x00400000) {
case 0x00400000:
- return clk->read(clk, nv_clk_src_core) >> P;
+ return nvkm_clk_read(&clk->base, nv_clk_src_core) >> P;
break;
default:
return 500000 >> P;
@@ -153,29 +157,28 @@ mcp77_clk_read(struct nvkm_clk *clk, enum nv_clk_src src)
break;
}
- nv_debug(priv, "unknown clock source %d 0x%08x\n", src, mast);
+ nvkm_debug(subdev, "unknown clock source %d %08x\n", src, mast);
return 0;
}
static u32
-calc_pll(struct mcp77_clk_priv *priv, u32 reg,
+calc_pll(struct mcp77_clk *clk, u32 reg,
u32 clock, int *N, int *M, int *P)
{
- struct nvkm_bios *bios = nvkm_bios(priv);
+ struct nvkm_subdev *subdev = &clk->base.subdev;
struct nvbios_pll pll;
- struct nvkm_clk *clk = &priv->base;
int ret;
- ret = nvbios_pll_parse(bios, reg, &pll);
+ ret = nvbios_pll_parse(subdev->device->bios, reg, &pll);
if (ret)
return 0;
pll.vco2.max_freq = 0;
- pll.refclk = clk->read(clk, nv_clk_src_href);
+ pll.refclk = nvkm_clk_read(&clk->base, nv_clk_src_href);
if (!pll.refclk)
return 0;
- return nv04_pll_calc(nv_subdev(priv), &pll, clock, N, M, NULL, NULL, P);
+ return nv04_pll_calc(subdev, &pll, clock, N, M, NULL, NULL, P);
}
static inline u32
@@ -197,26 +200,27 @@ calc_P(u32 src, u32 target, int *div)
}
static int
-mcp77_clk_calc(struct nvkm_clk *clk, struct nvkm_cstate *cstate)
+mcp77_clk_calc(struct nvkm_clk *base, struct nvkm_cstate *cstate)
{
- struct mcp77_clk_priv *priv = (void *)clk;
+ struct mcp77_clk *clk = mcp77_clk(base);
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];
+ struct nvkm_subdev *subdev = &clk->base.subdev;
u32 out = 0, clock = 0;
int N, M, P1, P2 = 0;
int divs = 0;
/* cclk: find suitable source, disable PLL if we can */
- if (core < clk->read(clk, nv_clk_src_hclkm4))
- out = calc_P(clk->read(clk, nv_clk_src_hclkm4), core, &divs);
+ if (core < nvkm_clk_read(&clk->base, nv_clk_src_hclkm4))
+ out = calc_P(nvkm_clk_read(&clk->base, nv_clk_src_hclkm4), core, &divs);
/* Calculate clock * 2, so shader clock can use it too */
- clock = calc_pll(priv, 0x4028, (core << 1), &N, &M, &P1);
+ clock = calc_pll(clk, 0x4028, (core << 1), &N, &M, &P1);
if (abs(core - out) <= abs(core - (clock >> 1))) {
- priv->csrc = nv_clk_src_hclkm4;
- priv->cctrl = divs << 16;
+ clk->csrc = nv_clk_src_hclkm4;
+ clk->cctrl = divs << 16;
} else {
/* NVCTRL is actually used _after_ NVPOST, and after what we
* call NVPLL. To make matters worse, NVPOST is an integer
@@ -226,31 +230,31 @@ mcp77_clk_calc(struct nvkm_clk *clk, struct nvkm_cstate *cstate)
P1 = 2;
}
- priv->csrc = nv_clk_src_core;
- priv->ccoef = (N << 8) | M;
+ clk->csrc = nv_clk_src_core;
+ clk->ccoef = (N << 8) | M;
- priv->cctrl = (P2 + 1) << 16;
- priv->cpost = (1 << P1) << 16;
+ clk->cctrl = (P2 + 1) << 16;
+ clk->cpost = (1 << P1) << 16;
}
/* sclk: nvpll + divisor, href or spll */
out = 0;
- if (shader == clk->read(clk, nv_clk_src_href)) {
- priv->ssrc = nv_clk_src_href;
+ if (shader == nvkm_clk_read(&clk->base, nv_clk_src_href)) {
+ clk->ssrc = nv_clk_src_href;
} else {
- clock = calc_pll(priv, 0x4020, shader, &N, &M, &P1);
- if (priv->csrc == nv_clk_src_core)
+ clock = calc_pll(clk, 0x4020, shader, &N, &M, &P1);
+ if (clk->csrc == nv_clk_src_core)
out = calc_P((core << 1), shader, &divs);
if (abs(shader - out) <=
abs(shader - clock) &&
(divs + P2) <= 7) {
- priv->ssrc = nv_clk_src_core;
- priv->sctrl = (divs + P2) << 16;
+ clk->ssrc = nv_clk_src_core;
+ clk->sctrl = (divs + P2) << 16;
} else {
- priv->ssrc = nv_clk_src_shader;
- priv->scoef = (N << 8) | M;
- priv->sctrl = P1 << 16;
+ clk->ssrc = nv_clk_src_shader;
+ clk->scoef = (N << 8) | M;
+ clk->sctrl = P1 << 16;
}
}
@@ -258,172 +262,162 @@ mcp77_clk_calc(struct nvkm_clk *clk, struct nvkm_cstate *cstate)
out = calc_P(core, vdec, &divs);
clock = calc_P(500000, vdec, &P1);
if(abs(vdec - out) <= abs(vdec - clock)) {
- priv->vsrc = nv_clk_src_cclk;
- priv->vdiv = divs << 16;
+ clk->vsrc = nv_clk_src_cclk;
+ clk->vdiv = divs << 16;
} else {
- priv->vsrc = nv_clk_src_vdec;
- priv->vdiv = P1 << 16;
+ clk->vsrc = nv_clk_src_vdec;
+ clk->vdiv = P1 << 16;
}
/* Print strategy! */
- nv_debug(priv, "nvpll: %08x %08x %08x\n",
- priv->ccoef, priv->cpost, priv->cctrl);
- nv_debug(priv, " spll: %08x %08x %08x\n",
- priv->scoef, priv->spost, priv->sctrl);
- nv_debug(priv, " vdiv: %08x\n", priv->vdiv);
- if (priv->csrc == nv_clk_src_hclkm4)
- nv_debug(priv, "core: hrefm4\n");
+ nvkm_debug(subdev, "nvpll: %08x %08x %08x\n",
+ clk->ccoef, clk->cpost, clk->cctrl);
+ nvkm_debug(subdev, " spll: %08x %08x %08x\n",
+ clk->scoef, clk->spost, clk->sctrl);
+ nvkm_debug(subdev, " vdiv: %08x\n", clk->vdiv);
+ if (clk->csrc == nv_clk_src_hclkm4)
+ nvkm_debug(subdev, "core: hrefm4\n");
else
- nv_debug(priv, "core: nvpll\n");
+ nvkm_debug(subdev, "core: nvpll\n");
- if (priv->ssrc == nv_clk_src_hclkm4)
- nv_debug(priv, "shader: hrefm4\n");
- else if (priv->ssrc == nv_clk_src_core)
- nv_debug(priv, "shader: nvpll\n");
+ if (clk->ssrc == nv_clk_src_hclkm4)
+ nvkm_debug(subdev, "shader: hrefm4\n");
+ else if (clk->ssrc == nv_clk_src_core)
+ nvkm_debug(subdev, "shader: nvpll\n");
else
- nv_debug(priv, "shader: spll\n");
+ nvkm_debug(subdev, "shader: spll\n");
- if (priv->vsrc == nv_clk_src_hclkm4)
- nv_debug(priv, "vdec: 500MHz\n");
+ if (clk->vsrc == nv_clk_src_hclkm4)
+ nvkm_debug(subdev, "vdec: 500MHz\n");
else
- nv_debug(priv, "vdec: core\n");
+ nvkm_debug(subdev, "vdec: core\n");
return 0;
}
static int
-mcp77_clk_prog(struct nvkm_clk *clk)
+mcp77_clk_prog(struct nvkm_clk *base)
{
- struct mcp77_clk_priv *priv = (void *)clk;
+ struct mcp77_clk *clk = mcp77_clk(base);
+ struct nvkm_subdev *subdev = &clk->base.subdev;
+ struct nvkm_device *device = subdev->device;
u32 pllmask = 0, mast;
unsigned long flags;
unsigned long *f = &flags;
int ret = 0;
- ret = gt215_clk_pre(clk, f);
+ ret = gt215_clk_pre(&clk->base, f);
if (ret)
goto out;
/* First switch to safe clocks: href */
- mast = nv_mask(clk, 0xc054, 0x03400e70, 0x03400640);
+ mast = nvkm_mask(device, 0xc054, 0x03400e70, 0x03400640);
mast &= ~0x00400e73;
mast |= 0x03000000;
- switch (priv->csrc) {
+ switch (clk->csrc) {
case nv_clk_src_hclkm4:
- nv_mask(clk, 0x4028, 0x00070000, priv->cctrl);
+ nvkm_mask(device, 0x4028, 0x00070000, clk->cctrl);
mast |= 0x00000002;
break;
case nv_clk_src_core:
- nv_wr32(clk, 0x402c, priv->ccoef);
- nv_wr32(clk, 0x4028, 0x80000000 | priv->cctrl);
- nv_wr32(clk, 0x4040, priv->cpost);
+ nvkm_wr32(device, 0x402c, clk->ccoef);
+ nvkm_wr32(device, 0x4028, 0x80000000 | clk->cctrl);
+ nvkm_wr32(device, 0x4040, clk->cpost);
pllmask |= (0x3 << 8);
mast |= 0x00000003;
break;
default:
- nv_warn(priv,"Reclocking failed: unknown core clock\n");
+ nvkm_warn(subdev, "Reclocking failed: unknown core clock\n");
goto resume;
}
- switch (priv->ssrc) {
+ switch (clk->ssrc) {
case nv_clk_src_href:
- nv_mask(clk, 0x4020, 0x00070000, 0x00000000);
+ nvkm_mask(device, 0x4020, 0x00070000, 0x00000000);
/* mast |= 0x00000000; */
break;
case nv_clk_src_core:
- nv_mask(clk, 0x4020, 0x00070000, priv->sctrl);
+ nvkm_mask(device, 0x4020, 0x00070000, clk->sctrl);
mast |= 0x00000020;
break;
case nv_clk_src_shader:
- nv_wr32(clk, 0x4024, priv->scoef);
- nv_wr32(clk, 0x4020, 0x80000000 | priv->sctrl);
- nv_wr32(clk, 0x4070, priv->spost);
+ nvkm_wr32(device, 0x4024, clk->scoef);
+ nvkm_wr32(device, 0x4020, 0x80000000 | clk->sctrl);
+ nvkm_wr32(device, 0x4070, clk->spost);
pllmask |= (0x3 << 12);
mast |= 0x00000030;
break;
default:
- nv_warn(priv,"Reclocking failed: unknown sclk clock\n");
+ nvkm_warn(subdev, "Reclocking failed: unknown sclk clock\n");
goto resume;
}
- if (!nv_wait(clk, 0x004080, pllmask, pllmask)) {
- nv_warn(priv,"Reclocking failed: unstable PLLs\n");
+ if (nvkm_msec(device, 2000,
+ u32 tmp = nvkm_rd32(device, 0x004080) & pllmask;
+ if (tmp == pllmask)
+ break;
+ ) < 0)
goto resume;
- }
- switch (priv->vsrc) {
+ switch (clk->vsrc) {
case nv_clk_src_cclk:
mast |= 0x00400000;
default:
- nv_wr32(clk, 0x4600, priv->vdiv);
+ nvkm_wr32(device, 0x4600, clk->vdiv);
}
- nv_wr32(clk, 0xc054, mast);
+ nvkm_wr32(device, 0xc054, mast);
resume:
/* Disable some PLLs and dividers when unused */
- if (priv->csrc != nv_clk_src_core) {
- nv_wr32(clk, 0x4040, 0x00000000);
- nv_mask(clk, 0x4028, 0x80000000, 0x00000000);
+ if (clk->csrc != nv_clk_src_core) {
+ nvkm_wr32(device, 0x4040, 0x00000000);
+ nvkm_mask(device, 0x4028, 0x80000000, 0x00000000);
}
- if (priv->ssrc != nv_clk_src_shader) {
- nv_wr32(clk, 0x4070, 0x00000000);
- nv_mask(clk, 0x4020, 0x80000000, 0x00000000);
+ if (clk->ssrc != nv_clk_src_shader) {
+ nvkm_wr32(device, 0x4070, 0x00000000);
+ nvkm_mask(device, 0x4020, 0x80000000, 0x00000000);
}
out:
if (ret == -EBUSY)
f = NULL;
- gt215_clk_post(clk, f);
+ gt215_clk_post(&clk->base, f);
return ret;
}
static void
-mcp77_clk_tidy(struct nvkm_clk *clk)
+mcp77_clk_tidy(struct nvkm_clk *base)
{
}
-static struct nvkm_domain
-mcp77_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_vdec , 0xff, 0, "vdec", 1000 },
- { nv_clk_src_max }
+static const struct nvkm_clk_func
+mcp77_clk = {
+ .read = mcp77_clk_read,
+ .calc = mcp77_clk_calc,
+ .prog = mcp77_clk_prog,
+ .tidy = mcp77_clk_tidy,
+ .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_vdec , 0xff, 0, "vdec", 1000 },
+ { nv_clk_src_max }
+ }
};
-static int
-mcp77_clk_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
- struct nvkm_oclass *oclass, void *data, u32 size,
- struct nvkm_object **pobject)
+int
+mcp77_clk_new(struct nvkm_device *device, int index, struct nvkm_clk **pclk)
{
- struct mcp77_clk_priv *priv;
- int ret;
+ struct mcp77_clk *clk;
- ret = nvkm_clk_create(parent, engine, oclass, mcp77_domains,
- NULL, 0, true, &priv);
- *pobject = nv_object(priv);
- if (ret)
- return ret;
+ if (!(clk = kzalloc(sizeof(*clk), GFP_KERNEL)))
+ return -ENOMEM;
+ *pclk = &clk->base;
- priv->base.read = mcp77_clk_read;
- priv->base.calc = mcp77_clk_calc;
- priv->base.prog = mcp77_clk_prog;
- priv->base.tidy = mcp77_clk_tidy;
- return 0;
+ return nvkm_clk_ctor(&mcp77_clk, device, index, true, &clk->base);
}
-
-struct nvkm_oclass *
-mcp77_clk_oclass = &(struct nvkm_oclass) {
- .handle = NV_SUBDEV(CLK, 0xaa),
- .ofuncs = &(struct nvkm_ofuncs) {
- .ctor = mcp77_clk_ctor,
- .dtor = _nvkm_clk_dtor,
- .init = _nvkm_clk_init,
- .fini = _nvkm_clk_fini,
- },
-};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.