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authorBen Skeggs <bskeggs@redhat.com>2015-08-20 07:54:06 +0300
committerBen Skeggs <bskeggs@redhat.com>2015-08-28 05:40:07 +0300
commit3eca809b3c05ea6918c1d13da478abdae5e712ba (patch)
tree3c4a360d7c3b043d38c5d3880775e717fa2fcd77 /drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv40.c
parent01d6b95605ad5c5be9ce0c7bf37b1a6d51cbb9e4 (diff)
downloadlinux-3eca809b3c05ea6918c1d13da478abdae5e712ba.tar.xz
drm/nouveau/clk: cosmetic changes
This is purely preparation for upcoming commits, there should be no code changes here. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv40.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv40.c116
1 files changed, 58 insertions, 58 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv40.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv40.c
index 15668d2883f1..eb4a8affd0ec 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv40.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv40.c
@@ -27,7 +27,7 @@
#include <subdev/bios.h>
#include <subdev/bios/pll.h>
-struct nv40_clk_priv {
+struct nv40_clk {
struct nvkm_clk base;
u32 ctrl;
u32 npll_ctrl;
@@ -46,53 +46,53 @@ nv40_domain[] = {
};
static u32
-read_pll_1(struct nv40_clk_priv *priv, u32 reg)
+read_pll_1(struct nv40_clk *clk, u32 reg)
{
- u32 ctrl = nv_rd32(priv, reg + 0x00);
+ u32 ctrl = nv_rd32(clk, reg + 0x00);
int P = (ctrl & 0x00070000) >> 16;
int N = (ctrl & 0x0000ff00) >> 8;
int M = (ctrl & 0x000000ff) >> 0;
- u32 ref = 27000, clk = 0;
+ u32 ref = 27000, khz = 0;
if (ctrl & 0x80000000)
- clk = ref * N / M;
+ khz = ref * N / M;
- return clk >> P;
+ return khz >> P;
}
static u32
-read_pll_2(struct nv40_clk_priv *priv, u32 reg)
+read_pll_2(struct nv40_clk *clk, u32 reg)
{
- u32 ctrl = nv_rd32(priv, reg + 0x00);
- u32 coef = nv_rd32(priv, reg + 0x04);
+ u32 ctrl = nv_rd32(clk, reg + 0x00);
+ u32 coef = nv_rd32(clk, 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;
+ u32 ref = 27000, khz = 0;
if ((ctrl & 0x80000000) && M1) {
- clk = ref * N1 / M1;
+ khz = ref * N1 / M1;
if ((ctrl & 0x40000100) == 0x40000000) {
if (M2)
- clk = clk * N2 / M2;
+ khz = khz * N2 / M2;
else
- clk = 0;
+ khz = 0;
}
}
- return clk >> P;
+ return khz >> P;
}
static u32
-read_clk(struct nv40_clk_priv *priv, u32 src)
+read_clk(struct nv40_clk *clk, u32 src)
{
switch (src) {
case 3:
- return read_pll_2(priv, 0x004000);
+ return read_pll_2(clk, 0x004000);
case 2:
- return read_pll_1(priv, 0x004008);
+ return read_pll_1(clk, 0x004008);
default:
break;
}
@@ -101,35 +101,35 @@ read_clk(struct nv40_clk_priv *priv, u32 src)
}
static int
-nv40_clk_read(struct nvkm_clk *clk, enum nv_clk_src src)
+nv40_clk_read(struct nvkm_clk *obj, enum nv_clk_src src)
{
- struct nv40_clk_priv *priv = (void *)clk;
- u32 mast = nv_rd32(priv, 0x00c040);
+ struct nv40_clk *clk = container_of(obj, typeof(*clk), base);
+ u32 mast = nv_rd32(clk, 0x00c040);
switch (src) {
case nv_clk_src_crystal:
- return nv_device(priv)->crystal;
+ return nv_device(clk)->crystal;
case nv_clk_src_href:
return 100000; /*XXX: PCIE/AGP differ*/
case nv_clk_src_core:
- return read_clk(priv, (mast & 0x00000003) >> 0);
+ return read_clk(clk, (mast & 0x00000003) >> 0);
case nv_clk_src_shader:
- return read_clk(priv, (mast & 0x00000030) >> 4);
+ return read_clk(clk, (mast & 0x00000030) >> 4);
case nv_clk_src_mem:
- return read_pll_2(priv, 0x4020);
+ return read_pll_2(clk, 0x4020);
default:
break;
}
- nv_debug(priv, "unknown clock source %d 0x%08x\n", src, mast);
+ nv_debug(clk, "unknown clock source %d 0x%08x\n", src, mast);
return -EINVAL;
}
static int
-nv40_clk_calc_pll(struct nv40_clk_priv *priv, u32 reg, u32 clk,
+nv40_clk_calc_pll(struct nv40_clk *clk, u32 reg, u32 khz,
int *N1, int *M1, int *N2, int *M2, int *log2P)
{
- struct nvkm_bios *bios = nvkm_bios(priv);
+ struct nvkm_bios *bios = nvkm_bios(clk);
struct nvbios_pll pll;
int ret;
@@ -137,10 +137,10 @@ nv40_clk_calc_pll(struct nv40_clk_priv *priv, u32 reg, u32 clk,
if (ret)
return ret;
- if (clk < pll.vco1.max_freq)
+ if (khz < pll.vco1.max_freq)
pll.vco2.max_freq = 0;
- ret = nv04_pll_calc(nv_subdev(priv), &pll, clk, N1, M1, N2, M2, log2P);
+ ret = nv04_pll_calc(nv_subdev(clk), &pll, khz, N1, M1, N2, M2, log2P);
if (ret == 0)
return -ERANGE;
@@ -148,60 +148,60 @@ nv40_clk_calc_pll(struct nv40_clk_priv *priv, u32 reg, u32 clk,
}
static int
-nv40_clk_calc(struct nvkm_clk *clk, struct nvkm_cstate *cstate)
+nv40_clk_calc(struct nvkm_clk *obj, struct nvkm_cstate *cstate)
{
- struct nv40_clk_priv *priv = (void *)clk;
+ struct nv40_clk *clk = container_of(obj, typeof(*clk), base);
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_clk_calc_pll(priv, 0x004000, gclk,
+ ret = nv40_clk_calc_pll(clk, 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;
+ clk->npll_ctrl = 0x80000100 | (log2P << 16);
+ clk->npll_coef = (N1 << 8) | M1;
} else {
- priv->npll_ctrl = 0xc0000000 | (log2P << 16);
- priv->npll_coef = (N2 << 24) | (M2 << 16) | (N1 << 8) | M1;
+ clk->npll_ctrl = 0xc0000000 | (log2P << 16);
+ clk->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_clk_calc_pll(priv, 0x004008, sclk,
+ ret = nv40_clk_calc_pll(clk, 0x004008, sclk,
&N1, &M1, NULL, NULL, &log2P);
if (ret < 0)
return ret;
- priv->spll = 0xc0000000 | (log2P << 16) | (N1 << 8) | M1;
- priv->ctrl = 0x00000223;
+ clk->spll = 0xc0000000 | (log2P << 16) | (N1 << 8) | M1;
+ clk->ctrl = 0x00000223;
} else {
- priv->spll = 0x00000000;
- priv->ctrl = 0x00000333;
+ clk->spll = 0x00000000;
+ clk->ctrl = 0x00000333;
}
return 0;
}
static int
-nv40_clk_prog(struct nvkm_clk *clk)
+nv40_clk_prog(struct nvkm_clk *obj)
{
- struct nv40_clk_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);
+ struct nv40_clk *clk = container_of(obj, typeof(*clk), base);
+ nv_mask(clk, 0x00c040, 0x00000333, 0x00000000);
+ nv_wr32(clk, 0x004004, clk->npll_coef);
+ nv_mask(clk, 0x004000, 0xc0070100, clk->npll_ctrl);
+ nv_mask(clk, 0x004008, 0xc007ffff, clk->spll);
mdelay(5);
- nv_mask(priv, 0x00c040, 0x00000333, priv->ctrl);
+ nv_mask(clk, 0x00c040, 0x00000333, clk->ctrl);
return 0;
}
static void
-nv40_clk_tidy(struct nvkm_clk *clk)
+nv40_clk_tidy(struct nvkm_clk *obj)
{
}
@@ -210,21 +210,21 @@ nv40_clk_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
- struct nv40_clk_priv *priv;
+ struct nv40_clk *clk;
int ret;
ret = nvkm_clk_create(parent, engine, oclass, nv40_domain,
- NULL, 0, true, &priv);
- *pobject = nv_object(priv);
+ NULL, 0, true, &clk);
+ *pobject = nv_object(clk);
if (ret)
return ret;
- priv->base.pll_calc = nv04_clk_pll_calc;
- priv->base.pll_prog = nv04_clk_pll_prog;
- priv->base.read = nv40_clk_read;
- priv->base.calc = nv40_clk_calc;
- priv->base.prog = nv40_clk_prog;
- priv->base.tidy = nv40_clk_tidy;
+ clk->base.pll_calc = nv04_clk_pll_calc;
+ clk->base.pll_prog = nv04_clk_pll_prog;
+ clk->base.read = nv40_clk_read;
+ clk->base.calc = nv40_clk_calc;
+ clk->base.prog = nv40_clk_prog;
+ clk->base.tidy = nv40_clk_tidy;
return 0;
}