From 5f1f07de4114ae0012d98330d8e6b5c1cfcace41 Mon Sep 17 00:00:00 2001 From: Karol Herbst Date: Mon, 28 Mar 2016 14:24:31 +0200 Subject: [PATCH] drm/nouveau/iccsense: split sensor into own struct v2: add list_del call, reword error message Signed-off-by: Karol Herbst Reviewed-by: Martin Peres Signed-off-by: Ben Skeggs --- .../gpu/drm/nouveau/include/nvkm/subdev/iccsense.h | 1 + .../gpu/drm/nouveau/nvkm/subdev/iccsense/base.c | 142 +++++++++++++++------ .../gpu/drm/nouveau/nvkm/subdev/iccsense/priv.h | 15 ++- 3 files changed, 113 insertions(+), 45 deletions(-) diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h index a4c0da0..3c2ddd9 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h @@ -6,6 +6,7 @@ struct nvkm_iccsense { struct nvkm_subdev subdev; bool data_valid; + struct list_head sensors; struct list_head rails; }; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c index f2a210a..03eef9d 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c @@ -30,15 +30,14 @@ static bool nvkm_iccsense_validate_device(struct i2c_adapter *i2c, u8 addr, - enum nvbios_extdev_type type, u8 rail) + enum nvbios_extdev_type type) { switch (type) { case NVBIOS_EXTDEV_INA209: case NVBIOS_EXTDEV_INA219: - return rail == 0 && nv_rd16i2cr(i2c, addr, 0x0) >= 0; + return nv_rd16i2cr(i2c, addr, 0x0) >= 0; case NVBIOS_EXTDEV_INA3221: - return rail <= 3 && - nv_rd16i2cr(i2c, addr, 0xff) == 0x3220 && + return nv_rd16i2cr(i2c, addr, 0xff) == 0x3220 && nv_rd16i2cr(i2c, addr, 0xfe) == 0x5449; default: return false; @@ -67,8 +66,9 @@ nvkm_iccsense_ina2x9_read(struct nvkm_iccsense *iccsense, struct nvkm_iccsense_rail *rail, u8 shunt_reg, u8 bus_reg) { - return nvkm_iccsense_poll_lane(rail->i2c, rail->addr, shunt_reg, 0, - bus_reg, 3, rail->mohm, 10 * 4); + return nvkm_iccsense_poll_lane(rail->sensor->i2c, rail->sensor->addr, + shunt_reg, 0, bus_reg, 3, rail->mohm, + 10 * 4); } static int @@ -89,9 +89,9 @@ static int nvkm_iccsense_ina3221_read(struct nvkm_iccsense *iccsense, struct nvkm_iccsense_rail *rail) { - return nvkm_iccsense_poll_lane(rail->i2c, rail->addr, - 1 + (rail->rail * 2), 3, - 2 + (rail->rail * 2), 3, rail->mohm, + return nvkm_iccsense_poll_lane(rail->sensor->i2c, rail->sensor->addr, + 1 + (rail->idx * 2), 3, + 2 + (rail->idx * 2), 3, rail->mohm, 40 * 8); } @@ -121,9 +121,14 @@ static void * nvkm_iccsense_dtor(struct nvkm_subdev *subdev) { struct nvkm_iccsense *iccsense = nvkm_iccsense(subdev); - struct nvkm_iccsense_rail *rail, *tmp; + struct nvkm_iccsense_sensor *sensor, *tmps; + struct nvkm_iccsense_rail *rail, *tmpr; - list_for_each_entry_safe(rail, tmp, &iccsense->rails, head) { + list_for_each_entry_safe(sensor, tmps, &iccsense->sensors, head) { + list_del(&sensor->head); + kfree(sensor); + } + list_for_each_entry_safe(rail, tmpr, &iccsense->rails, head) { list_del(&rail->head); kfree(rail); } @@ -131,73 +136,125 @@ nvkm_iccsense_dtor(struct nvkm_subdev *subdev) return iccsense; } +static struct nvkm_iccsense_sensor* +nvkm_iccsense_create_sensor(struct nvkm_iccsense *iccsense, u8 id) +{ + + struct nvkm_subdev *subdev = &iccsense->subdev; + struct nvkm_bios *bios = subdev->device->bios; + struct nvkm_i2c *i2c = subdev->device->i2c; + struct nvbios_extdev_func extdev; + struct nvkm_i2c_bus *i2c_bus; + struct nvkm_iccsense_sensor *sensor; + u8 addr; + + if (!i2c || !bios || nvbios_extdev_parse(bios, id, &extdev)) + return NULL; + + if (extdev.type == 0xff) + return NULL; + + if (extdev.type != NVBIOS_EXTDEV_INA209 && + extdev.type != NVBIOS_EXTDEV_INA219 && + extdev.type != NVBIOS_EXTDEV_INA3221) { + iccsense->data_valid = false; + nvkm_error(subdev, "Unknown sensor type %x, power reading " + "disabled\n", extdev.type); + return NULL; + } + + if (extdev.bus) + i2c_bus = nvkm_i2c_bus_find(i2c, NVKM_I2C_BUS_SEC); + else + i2c_bus = nvkm_i2c_bus_find(i2c, NVKM_I2C_BUS_PRI); + if (!i2c_bus) + return NULL; + + addr = extdev.addr >> 1; + if (!nvkm_iccsense_validate_device(&i2c_bus->i2c, addr, + extdev.type)) { + iccsense->data_valid = false; + nvkm_warn(subdev, "found invalid sensor id: %i, power reading" + "might be invalid\n", id); + return NULL; + } + + sensor = kmalloc(sizeof(*sensor), GFP_KERNEL); + if (!sensor) + return NULL; + + list_add_tail(&sensor->head, &iccsense->sensors); + sensor->id = id; + sensor->type = extdev.type; + sensor->i2c = &i2c_bus->i2c; + sensor->addr = addr; + sensor->rail_mask = 0x0; + return sensor; +} + +static struct nvkm_iccsense_sensor* +nvkm_iccsense_get_sensor(struct nvkm_iccsense *iccsense, u8 id) +{ + struct nvkm_iccsense_sensor *sensor; + list_for_each_entry(sensor, &iccsense->sensors, head) { + if (sensor->id == id) + return sensor; + } + return nvkm_iccsense_create_sensor(iccsense, id); +} + static int nvkm_iccsense_oneinit(struct nvkm_subdev *subdev) { struct nvkm_iccsense *iccsense = nvkm_iccsense(subdev); struct nvkm_bios *bios = subdev->device->bios; - struct nvkm_i2c *i2c = subdev->device->i2c; struct nvbios_iccsense stbl; int i; - if (!i2c || !bios || nvbios_iccsense_parse(bios, &stbl) - || !stbl.nr_entry) + if (!bios || nvbios_iccsense_parse(bios, &stbl) || !stbl.nr_entry) return 0; iccsense->data_valid = true; for (i = 0; i < stbl.nr_entry; ++i) { struct pwr_rail_t *r = &stbl.rail[i]; - struct nvbios_extdev_func extdev; struct nvkm_iccsense_rail *rail; - struct nvkm_i2c_bus *i2c_bus; - u8 addr; + struct nvkm_iccsense_sensor *sensor; if (!r->mode || r->resistor_mohm == 0) continue; - if (nvbios_extdev_parse(bios, r->extdev_id, &extdev)) - continue; - - if (extdev.type == 0xff) - continue; - - if (extdev.bus) - i2c_bus = nvkm_i2c_bus_find(i2c, NVKM_I2C_BUS_SEC); - else - i2c_bus = nvkm_i2c_bus_find(i2c, NVKM_I2C_BUS_PRI); - if (!i2c_bus) + sensor = nvkm_iccsense_get_sensor(iccsense, r->extdev_id); + if (!sensor) continue; - addr = extdev.addr >> 1; - if (!nvkm_iccsense_validate_device(&i2c_bus->i2c, addr, - extdev.type, r->rail)) { - iccsense->data_valid = false; - nvkm_warn(subdev, "found unknown or invalid rail entry" - " type 0x%x rail %i, power reading might be" - " invalid\n", extdev.type, r->rail); - continue; - } - rail = kmalloc(sizeof(*rail), GFP_KERNEL); if (!rail) return -ENOMEM; - switch (extdev.type) { + switch (sensor->type) { case NVBIOS_EXTDEV_INA209: + if (r->rail != 0) + continue; rail->read = nvkm_iccsense_ina209_read; break; case NVBIOS_EXTDEV_INA219: + if (r->rail != 0) + continue; rail->read = nvkm_iccsense_ina219_read; break; case NVBIOS_EXTDEV_INA3221: + if (r->rail >= 3) + continue; rail->read = nvkm_iccsense_ina3221_read; break; + default: + continue; } - rail->addr = addr; - rail->rail = r->rail; + sensor->rail_mask |= 1 << r->rail; + rail->sensor = sensor; + rail->idx = r->rail; rail->mohm = r->resistor_mohm; - rail->i2c = &i2c_bus->i2c; list_add_tail(&rail->head, &iccsense->rails); } return 0; @@ -221,6 +278,7 @@ nvkm_iccsense_new_(struct nvkm_device *device, int index, { if (!(*iccsense = kzalloc(sizeof(**iccsense), GFP_KERNEL))) return -ENOMEM; + INIT_LIST_HEAD(&(*iccsense)->sensors); INIT_LIST_HEAD(&(*iccsense)->rails); nvkm_iccsense_ctor(device, index, *iccsense); return 0; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/priv.h index e479128..b72c31d 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/priv.h @@ -2,13 +2,22 @@ #define __NVKM_ICCSENSE_PRIV_H__ #define nvkm_iccsense(p) container_of((p), struct nvkm_iccsense, subdev) #include +#include -struct nvkm_iccsense_rail { +struct nvkm_iccsense_sensor { struct list_head head; - int (*read)(struct nvkm_iccsense *, struct nvkm_iccsense_rail *); + int id; + enum nvbios_extdev_type type; struct i2c_adapter *i2c; u8 addr; - u8 rail; + u8 rail_mask; +}; + +struct nvkm_iccsense_rail { + struct list_head head; + int (*read)(struct nvkm_iccsense *, struct nvkm_iccsense_rail *); + struct nvkm_iccsense_sensor *sensor; + u8 idx; u8 mohm; }; -- 2.7.4