From: Martin Peres Date: Tue, 18 Feb 2014 02:56:11 +0000 (+0100) Subject: drm/nvd7/therm: handle another kind of PWM fans X-Git-Tag: v3.15-rc1~51^2~39^2~3 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=9c9191aaf844e237c025ef574e13d3e1c174c765;p=~emulex%2Finfiniband.git drm/nvd7/therm: handle another kind of PWM fans This should fix fan management on many nvd7+ chipsets. Signed-off-by: Martin Peres Tested-by: Timothée Ravier Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/therm.h b/drivers/gpu/drm/nouveau/core/include/subdev/therm.h index 69891d4a3fe..d4a68179e58 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/therm.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/therm.h @@ -31,7 +31,7 @@ struct nouveau_therm { int (*pwm_ctrl)(struct nouveau_therm *, int line, bool); int (*pwm_get)(struct nouveau_therm *, int line, u32 *, u32 *); int (*pwm_set)(struct nouveau_therm *, int line, u32, u32); - int (*pwm_clock)(struct nouveau_therm *); + int (*pwm_clock)(struct nouveau_therm *, int line); int (*fan_get)(struct nouveau_therm *); int (*fan_set)(struct nouveau_therm *, int); diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c b/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c index 29d4c417a5b..ceb85281cbe 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/fan.c @@ -242,7 +242,8 @@ nouveau_therm_fan_ctor(struct nouveau_therm *therm) /* attempt to locate a drivable fan, and determine control method */ ret = gpio->find(gpio, 0, DCB_GPIO_FAN, 0xff, &func); if (ret == 0) { - if (func.log[0] & DCB_GPIO_LOG_DIR_IN) { + /* FIXME: is this really the place to perform such checks ? */ + if (func.line != 16 && func.log[0] & DCB_GPIO_LOG_DIR_IN) { nv_debug(therm, "GPIO_FAN is in input mode\n"); ret = -EINVAL; } else { diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/fanpwm.c b/drivers/gpu/drm/nouveau/core/subdev/therm/fanpwm.c index 5f71db8e899..9a5c0734026 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/fanpwm.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/fanpwm.c @@ -67,7 +67,7 @@ nouveau_fanpwm_set(struct nouveau_therm *therm, int percent) if (priv->base.bios.pwm_freq) { divs = 1; if (therm->pwm_clock) - divs = therm->pwm_clock(therm); + divs = therm->pwm_clock(therm, priv->func.line); divs /= priv->base.bios.pwm_freq; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c index 8cf7597a218..321db927d63 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/nv50.c @@ -93,7 +93,7 @@ nv50_fan_pwm_set(struct nouveau_therm *therm, int line, u32 divs, u32 duty) } int -nv50_fan_pwm_clock(struct nouveau_therm *therm) +nv50_fan_pwm_clock(struct nouveau_therm *therm, int line) { int chipset = nv_device(therm)->chipset; int crystal = nv_device(therm)->crystal; diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nvd0.c index 4dd4f81ae87..43fec17ea54 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/nvd0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/nvd0.c @@ -32,10 +32,12 @@ static int pwm_info(struct nouveau_therm *therm, int line) { u32 gpio = nv_rd32(therm, 0x00d610 + (line * 0x04)); + switch (gpio & 0x000000c0) { case 0x00000000: /* normal mode, possibly pwm forced off by us */ case 0x00000040: /* nvio special */ switch (gpio & 0x0000001f) { + case 0x00: return 2; case 0x19: return 1; case 0x1c: return 0; default: @@ -56,8 +58,9 @@ nvd0_fan_pwm_ctrl(struct nouveau_therm *therm, int line, bool enable) int indx = pwm_info(therm, line); if (indx < 0) return indx; - - nv_mask(therm, 0x00d610 + (line * 0x04), 0x000000c0, data); + else if (indx < 2) + nv_mask(therm, 0x00d610 + (line * 0x04), 0x000000c0, data); + /* nothing to do for indx == 2, it seems hardwired to PTHERM */ return 0; } @@ -67,10 +70,15 @@ nvd0_fan_pwm_get(struct nouveau_therm *therm, int line, u32 *divs, u32 *duty) int indx = pwm_info(therm, line); if (indx < 0) return indx; - - if (nv_rd32(therm, 0x00d610 + (line * 0x04)) & 0x00000040) { - *divs = nv_rd32(therm, 0x00e114 + (indx * 8)); - *duty = nv_rd32(therm, 0x00e118 + (indx * 8)); + else if (indx < 2) { + if (nv_rd32(therm, 0x00d610 + (line * 0x04)) & 0x00000040) { + *divs = nv_rd32(therm, 0x00e114 + (indx * 8)); + *duty = nv_rd32(therm, 0x00e118 + (indx * 8)); + return 0; + } + } else if (indx == 2) { + *divs = nv_rd32(therm, 0x0200d8) & 0x1fff; + *duty = nv_rd32(therm, 0x0200dc) & 0x1fff; return 0; } @@ -83,16 +91,26 @@ nvd0_fan_pwm_set(struct nouveau_therm *therm, int line, u32 divs, u32 duty) int indx = pwm_info(therm, line); if (indx < 0) return indx; - - nv_wr32(therm, 0x00e114 + (indx * 8), divs); - nv_wr32(therm, 0x00e118 + (indx * 8), duty | 0x80000000); + else if (indx < 2) { + nv_wr32(therm, 0x00e114 + (indx * 8), divs); + nv_wr32(therm, 0x00e118 + (indx * 8), duty | 0x80000000); + } else if (indx == 2) { + nv_mask(therm, 0x0200d8, 0x1fff, divs); /* keep the high bits */ + nv_wr32(therm, 0x0200dc, duty | 0x40000000); + } return 0; } static int -nvd0_fan_pwm_clock(struct nouveau_therm *therm) +nvd0_fan_pwm_clock(struct nouveau_therm *therm, int line) { - return (nv_device(therm)->crystal * 1000) / 20; + int indx = pwm_info(therm, line); + if (indx < 0) + return 0; + else if (indx < 2) + return (nv_device(therm)->crystal * 1000) / 20; + else + return nv_device(therm)->crystal * 1000 / 10; } static int diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/priv.h b/drivers/gpu/drm/nouveau/core/subdev/therm/priv.h index 96f8f95693c..916fca5c781 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/priv.h +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/priv.h @@ -143,7 +143,7 @@ void nv40_therm_intr(struct nouveau_subdev *); int nv50_fan_pwm_ctrl(struct nouveau_therm *, int, bool); int nv50_fan_pwm_get(struct nouveau_therm *, int, u32 *, u32 *); int nv50_fan_pwm_set(struct nouveau_therm *, int, u32, u32); -int nv50_fan_pwm_clock(struct nouveau_therm *); +int nv50_fan_pwm_clock(struct nouveau_therm *, int); int nv84_temp_get(struct nouveau_therm *therm); int nv84_therm_fini(struct nouveau_object *object, bool suspend);