diff options
author | Ben Skeggs <bskeggs@redhat.com> | 2011-11-21 10:41:48 +0400 |
---|---|---|
committer | Ben Skeggs <bskeggs@redhat.com> | 2011-12-21 13:01:45 +0400 |
commit | a0b25635515ef5049f93b032a1e37f18b16e0f6f (patch) | |
tree | 34c25948a2fd7b8eadf46418d767d43c9a64c06b /drivers | |
parent | 675aac033e089833e763ea4fbabae66883d10574 (diff) | |
download | linux-a0b25635515ef5049f93b032a1e37f18b16e0f6f.tar.xz |
drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issues
- moves out of nouveau_bios.c and demagics the logical state definitions
- simplifies chipset-specific driver interface
- makes most of gpio irq handling common, will use for nv4x hpd later
- api extended to allow both direct gpio access, and access using the
logical function states
- api extended to allow for future use of gpio extender chips
- pre-nv50 was handled very badly, the main issue being that all GPIOs
were being treated as output-only.
- fixes nvd0 so gpio changes actually stick, magic reg needs bashing
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/nouveau/Makefile | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 206 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.h | 17 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_connector.c | 24 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_dp.c | 7 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_drv.h | 47 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_gpio.c | 400 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_gpio.h | 71 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_pm.c | 43 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_state.c | 64 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_volt.c | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nv04_dac.c | 14 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nv10_gpio.c | 94 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nv17_tv.c | 20 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nv50_display.c | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nv50_gpio.c | 272 |
16 files changed, 653 insertions, 646 deletions
diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile index c152a03d287f..9f27e3d9e69a 100644 --- a/drivers/gpu/drm/nouveau/Makefile +++ b/drivers/gpu/drm/nouveau/Makefile @@ -11,7 +11,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \ nouveau_display.o nouveau_connector.o nouveau_fbcon.o \ nouveau_hdmi.o nouveau_dp.o nouveau_ramht.o \ nouveau_pm.o nouveau_volt.o nouveau_perf.o nouveau_temp.o \ - nouveau_mm.o nouveau_vm.o nouveau_mxm.o \ + nouveau_mm.o nouveau_vm.o nouveau_mxm.o nouveau_gpio.o \ nv04_timer.o \ nv04_mc.o nv40_mc.o nv50_mc.o \ nv04_fb.o nv10_fb.o nv30_fb.o nv40_fb.o nv50_fb.o nvc0_fb.o \ diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index f8df37285ba7..e5cbead85e50 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -27,6 +27,7 @@ #include "nouveau_drv.h" #include "nouveau_hw.h" #include "nouveau_encoder.h" +#include "nouveau_gpio.h" #include <linux/io-mapping.h> @@ -3124,49 +3125,6 @@ init_8d(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) return 1; } -static void -init_gpio_unknv50(struct nvbios *bios, struct dcb_gpio_entry *gpio) -{ - const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c }; - u32 r, s, v; - - /* Not a clue, needs de-magicing */ - r = nv50_gpio_ctl[gpio->line >> 4]; - s = (gpio->line & 0x0f); - v = bios_rd32(bios, r) & ~(0x00010001 << s); - switch ((gpio->entry & 0x06000000) >> 25) { - case 1: - v |= (0x00000001 << s); - break; - case 2: - v |= (0x00010000 << s); - break; - default: - break; - } - - bios_wr32(bios, r, v); -} - -static void -init_gpio_unknvd0(struct nvbios *bios, struct dcb_gpio_entry *gpio) -{ - u32 v, i; - - v = bios_rd32(bios, 0x00d610 + (gpio->line * 4)); - v &= 0xffffff00; - v |= (gpio->entry & 0x00ff0000) >> 16; - bios_wr32(bios, 0x00d610 + (gpio->line * 4), v); - - i = (gpio->entry & 0x1f000000) >> 24; - if (i) { - v = bios_rd32(bios, 0x00d640 + ((i - 1) * 4)); - v &= 0xffffff00; - v |= gpio->line; - bios_wr32(bios, 0x00d640 + ((i - 1) * 4), v); - } -} - static int init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) { @@ -3179,35 +3137,8 @@ init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) * each GPIO according to various values listed in each entry */ - struct drm_nouveau_private *dev_priv = bios->dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; - int i; - - if (dev_priv->card_type < NV_50) { - NV_ERROR(bios->dev, "INIT_GPIO on unsupported chipset\n"); - return 1; - } - - if (!iexec->execute) - return 1; - - for (i = 0; i < bios->dcb.gpio.entries; i++) { - struct dcb_gpio_entry *gpio = &bios->dcb.gpio.entry[i]; - - BIOSLOG(bios, "0x%04X: Entry: 0x%08X\n", offset, gpio->entry); - - BIOSLOG(bios, "0x%04X: set gpio 0x%02x, state %d\n", - offset, gpio->tag, gpio->state_default); - - if (!bios->execute) - continue; - - pgpio->set(bios->dev, gpio->tag, gpio->state_default); - if (dev_priv->card_type < NV_D0) - init_gpio_unknv50(bios, gpio); - else - init_gpio_unknvd0(bios, gpio); - } + if (iexec->execute && bios->execute) + nouveau_gpio_reset(bios->dev); return 1; } @@ -5643,132 +5574,6 @@ static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len) return 0; } -static struct dcb_gpio_entry * -new_gpio_entry(struct nvbios *bios) -{ - struct drm_device *dev = bios->dev; - struct dcb_gpio_table *gpio = &bios->dcb.gpio; - - if (gpio->entries >= DCB_MAX_NUM_GPIO_ENTRIES) { - NV_ERROR(dev, "exceeded maximum number of gpio entries!!\n"); - return NULL; - } - - return &gpio->entry[gpio->entries++]; -} - -struct dcb_gpio_entry * -nouveau_bios_gpio_entry(struct drm_device *dev, enum dcb_gpio_tag tag) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nvbios *bios = &dev_priv->vbios; - int i; - - for (i = 0; i < bios->dcb.gpio.entries; i++) { - if (bios->dcb.gpio.entry[i].tag != tag) - continue; - - return &bios->dcb.gpio.entry[i]; - } - - return NULL; -} - -static void -parse_dcb_gpio_table(struct nvbios *bios) -{ - struct drm_device *dev = bios->dev; - struct dcb_gpio_entry *e; - u8 headerlen, entries, recordlen; - u8 *dcb, *gpio = NULL, *entry; - int i; - - dcb = ROMPTR(dev, bios->data[0x36]); - if (dcb[0] >= 0x30) { - gpio = ROMPTR(dev, dcb[10]); - if (!gpio) - goto no_table; - - headerlen = gpio[1]; - entries = gpio[2]; - recordlen = gpio[3]; - } else - if (dcb[0] >= 0x22 && dcb[-1] >= 0x13) { - gpio = ROMPTR(dev, dcb[-15]); - if (!gpio) - goto no_table; - - headerlen = 3; - entries = gpio[2]; - recordlen = gpio[1]; - } else - if (dcb[0] >= 0x22) { - /* No GPIO table present, parse the TVDAC GPIO data. */ - uint8_t *tvdac_gpio = &dcb[-5]; - - if (tvdac_gpio[0] & 1) { - e = new_gpio_entry(bios); - e->tag = DCB_GPIO_TVDAC0; - e->line = tvdac_gpio[1] >> 4; - e->state[0] = !!(tvdac_gpio[0] & 2); - e->state[1] = !e->state[0]; - } - - goto no_table; - } else { - NV_DEBUG(dev, "no/unknown gpio table on DCB 0x%02x\n", dcb[0]); - goto no_table; - } - - entry = gpio + headerlen; - for (i = 0; i < entries; i++, entry += recordlen) { - e = new_gpio_entry(bios); - if (!e) - break; - - if (gpio[0] < 0x40) { - e->entry = ROM16(entry[0]); - e->tag = (e->entry & 0x07e0) >> 5; - if (e->tag == 0x3f) { - bios->dcb.gpio.entries--; - continue; - } - - e->line = (e->entry & 0x001f); - e->state[0] = ((e->entry & 0xf800) >> 11) != 4; - e->state[1] = !e->state[0]; - } else { - e->entry = ROM32(entry[0]); - e->tag = (e->entry & 0x0000ff00) >> 8; - if (e->tag == 0xff) { - bios->dcb.gpio.entries--; - continue; - } - - e->line = (e->entry & 0x0000001f) >> 0; - if (gpio[0] == 0x40) { - e->state_default = (e->entry & 0x01000000) >> 24; - e->state[0] = (e->entry & 0x18000000) >> 27; - e->state[1] = (e->entry & 0x60000000) >> 29; - } else { - e->state_default = (e->entry & 0x00000080) >> 7; - e->state[0] = (entry[4] >> 4) & 3; - e->state[1] = (entry[4] >> 6) & 3; - } - } - } - -no_table: - /* Apple iMac G4 NV18 */ - if (nv_match_device(dev, 0x0189, 0x10de, 0x0010)) { - e = new_gpio_entry(bios); - if (e) { - e->tag = DCB_GPIO_TVDAC0; - e->line = 4; - } - } -} - void * dcb_table(struct drm_device *dev) { @@ -6366,9 +6171,6 @@ parse_dcb_table(struct drm_device *dev, struct nvbios *bios) NV_TRACE(dev, "DCB version %d.%d\n", dcbt[0] >> 4, dcbt[0] & 0xf); dcb->version = dcbt[0]; - if (dcb->version >= 0x30) - dcb->gpio_table_ptr = ROM16(dcbt[10]); - dcb_outp_foreach(dev, NULL, parse_dcb_entry); /* @@ -6393,8 +6195,6 @@ parse_dcb_table(struct drm_device *dev, struct nvbios *bios) } } dcb_fake_connectors(bios); - - parse_dcb_gpio_table(bios); return 0; } diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.h b/drivers/gpu/drm/nouveau/nouveau_bios.h index 32b911d38e9a..1e382ad5a2b8 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.h +++ b/drivers/gpu/drm/nouveau/nouveau_bios.h @@ -61,19 +61,6 @@ enum dcb_gpio_tag { DCB_GPIO_UNUSED = 0xff }; -struct dcb_gpio_entry { - enum dcb_gpio_tag tag; - int line; - uint32_t entry; - uint8_t state_default; - uint8_t state[2]; -}; - -struct dcb_gpio_table { - int entries; - struct dcb_gpio_entry entry[DCB_MAX_NUM_GPIO_ENTRIES]; -}; - enum dcb_connector_type { DCB_CONNECTOR_VGA = 0x00, DCB_CONNECTOR_TV_0 = 0x10, @@ -142,12 +129,8 @@ struct dcb_entry { struct dcb_table { uint8_t version; - int entries; struct dcb_entry entry[DCB_MAX_NUM_ENTRIES]; - - uint16_t gpio_table_ptr; - struct dcb_gpio_table gpio; }; enum nouveau_or { diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index df99c7f1191a..f3ce34be082a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -35,6 +35,7 @@ #include "nouveau_encoder.h" #include "nouveau_crtc.h" #include "nouveau_connector.h" +#include "nouveau_gpio.h" #include "nouveau_hw.h" static void nouveau_connector_hotplug(void *, int); @@ -83,7 +84,6 @@ nouveau_connector_destroy(struct drm_connector *connector) { struct nouveau_connector *nv_connector = nouveau_connector(connector); struct drm_nouveau_private *dev_priv; - struct nouveau_gpio_engine *pgpio; struct drm_device *dev; if (!nv_connector) @@ -93,10 +93,9 @@ nouveau_connector_destroy(struct drm_connector *connector) dev_priv = dev->dev_private; NV_DEBUG_KMS(dev, "\n"); - pgpio = &dev_priv->engine.gpio; - if (pgpio->irq_unregister) { - pgpio->irq_unregister(dev, nv_connector->hpd, - nouveau_connector_hotplug, connector); + if (nv_connector->hpd != DCB_GPIO_UNUSED) { + nouveau_gpio_isr_del(dev, 0, nv_connector->hpd, 0xff, + nouveau_connector_hotplug, connector); } kfree(nv_connector->edid); @@ -876,7 +875,6 @@ nouveau_connector_create(struct drm_device *dev, int index) const struct drm_connector_funcs *funcs = &nouveau_connector_funcs; struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_display_engine *disp = &dev_priv->engine.display; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; struct nouveau_connector *nv_connector = NULL; struct drm_connector *connector; int type, ret = 0; @@ -1050,13 +1048,13 @@ nouveau_connector_create(struct drm_device *dev, int index) break; } - if (nv_connector->hpd != DCB_GPIO_UNUSED && pgpio->irq_register) { - pgpio->irq_register(dev, nv_connector->hpd, - nouveau_connector_hotplug, connector); - - connector->polled = DRM_CONNECTOR_POLL_HPD; - } else { - connector->polled = DRM_CONNECTOR_POLL_CONNECT; + connector->polled = DRM_CONNECTOR_POLL_CONNECT; + if (nv_connector->hpd != DCB_GPIO_UNUSED) { + ret = nouveau_gpio_isr_add(dev, 0, nv_connector->hpd, 0xff, + nouveau_connector_hotplug, + connector); + if (ret == 0) + connector->polled = DRM_CONNECTOR_POLL_HPD; } drm_sysfs_connector_add(connector); diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c index 02b00c827da3..9b93b703ceab 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dp.c +++ b/drivers/gpu/drm/nouveau/nouveau_dp.c @@ -29,6 +29,7 @@ #include "nouveau_connector.h" #include "nouveau_encoder.h" #include "nouveau_crtc.h" +#include "nouveau_gpio.h" /****************************************************************************** * aux channel util functions @@ -556,8 +557,6 @@ dp_link_train_eq(struct drm_device *dev, struct dp_state *dp) bool nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate) { - struct drm_nouveau_private *dev_priv = encoder->dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); struct nouveau_connector *nv_connector = @@ -587,7 +586,7 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate) * we take during link training (DP_SET_POWER is one), we need * to ignore them for the moment to avoid races. */ - pgpio->irq_enable(dev, nv_connector->hpd, false); + nouveau_gpio_irq(dev, 0, nv_connector->hpd, 0xff, false); /* enable down-spreading, if possible */ if (dp.table[1] >= 16) { @@ -636,7 +635,7 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate) nouveau_bios_run_init_table(dev, ROM16(dp.entry[8]), dp.dcb, dp.crtc); /* re-enable hotplug detect */ - pgpio->irq_enable(dev, nv_connector->hpd, true); + nouveau_gpio_irq(dev, 0, nv_connector->hpd, 0xff, true); return true; } diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 909b991416ed..0af525820347 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -408,19 +408,13 @@ struct nouveau_display_engine { }; struct nouveau_gpio_engine { - void *priv; - - int (*init)(struct drm_device *); - void (*takedown)(struct drm_device *); - - int (*get)(struct drm_device *, enum dcb_gpio_tag); - int (*set)(struct drm_device *, enum dcb_gpio_tag, int state); - - int (*irq_register)(struct drm_device *, enum dcb_gpio_tag, - void (*)(void *, int), void *); - void (*irq_unregister)(struct drm_device *, enum dcb_gpio_tag, - void (*)(void *, int), void *); - bool (*irq_enable)(struct drm_device *, enum dcb_gpio_tag, bool on); + spinlock_t lock; + struct list_head isr; + int (*init)(struct drm_device *); + void (*fini)(struct drm_device *); + int (*drive)(struct drm_device *, int line, int dir, int out); + int (*sense)(struct drm_device *, int line); + void (*irq_enable)(struct drm_device *, int line, bool); }; struct nouveau_pm_voltage_level { @@ -1091,8 +1085,6 @@ extern int nouveau_run_vbios_init(struct drm_device *); extern void nouveau_bios_run_init_table(struct drm_device *, uint16_t table, struct dcb_entry *, int crtc); extern void nouveau_bios_init_exec(struct drm_device *, uint16_t table); -extern struct dcb_gpio_entry *nouveau_bios_gpio_entry(struct drm_device *, - enum dcb_gpio_tag); extern struct dcb_connector_table_entry * nouveau_bios_connector_entry(struct drm_device *, int index); extern u32 get_pll_register(struct drm_device *, enum pll_types); @@ -1476,23 +1468,22 @@ int nouveau_display_dumb_destroy(struct drm_file *, struct drm_device *, uint32_t handle); /* nv10_gpio.c */ -int nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag); -int nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state); +int nv10_gpio_init(struct drm_device *dev); +void nv10_gpio_fini(struct drm_device *dev); +int nv10_gpio_drive(struct drm_device *dev, int line, int dir, int out); +int nv10_gpio_sense(struct drm_device *dev, int line); +void nv10_gpio_irq_enable(struct drm_device *, int line, bool on); /* nv50_gpio.c */ int nv50_gpio_init(struct drm_device *dev); void nv50_gpio_fini(struct drm_device *dev); -int nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag); -int nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state); -int nvd0_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag); -int nvd0_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state); -int nv50_gpio_irq_register(struct drm_device *, enum dcb_gpio_tag, - void (*)(void *, int), void *); -void nv50_gpio_irq_unregister(struct drm_device *, enum dcb_gpio_tag, - void (*)(void *, int), void *); -bool nv50_gpio_irq_enable(struct drm_device *, enum dcb_gpio_tag, bool on); - -/* nv50_calc. */ +int nv50_gpio_drive(struct drm_device *dev, int line, int dir, int out); +int nv50_gpio_sense(struct drm_device *dev, int line); +void nv50_gpio_irq_enable(struct drm_device *, int line, bool on); +int nvd0_gpio_drive(struct drm_device *dev, int line, int dir, int out); +int nvd0_gpio_sense(struct drm_device *dev, int line); + +/* nv50_calc.c */ int nv50_calc_pll(struct drm_device *, struct pll_lims *, int clk, int *N1, int *M1, int *N2, int *M2, int *P); int nva3_calc_pll(struct drm_device *, struct pll_lims *, diff --git a/drivers/gpu/drm/nouveau/nouveau_gpio.c b/drivers/gpu/drm/nouveau/nouveau_gpio.c new file mode 100644 index 000000000000..a580cc62337a --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_gpio.c @@ -0,0 +1,400 @@ +/* + * Copyright 2011 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 "drmP.h" +#include "nouveau_drv.h" +#include "nouveau_i2c.h" +#include "nouveau_gpio.h" + +static u8 * +dcb_gpio_table(struct drm_device *dev) +{ + u8 *dcb = dcb_table(dev); + if (dcb) { + if (dcb[0] >= 0x30 && dcb[1] >= 0x0c) + return ROMPTR(dev, dcb[0x0a]); + if (dcb[0] >= 0x22 && dcb[-1] >= 0x13) + return ROMPTR(dev, dcb[-15]); + } + return NULL; +} + +static u8 * +dcb_gpio_entry(struct drm_device *dev, int idx, int ent, u8 *version) +{ + u8 *table = dcb_gpio_table(dev); + if (table) { + *version = table[0]; + if (*version < 0x30 && ent < table[2]) + return table + 3 + (ent * table[1]); + else if (ent < table[2]) + return table + table[1] + (ent * table[3]); + } + return NULL; +} + +int +nouveau_gpio_drive(struct drm_device *dev, int idx, int line, int dir, int out) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + + return pgpio->drive ? pgpio->drive(dev, line, dir, out) : -ENODEV; +} + +int +nouveau_gpio_sense(struct drm_device *dev, int idx, int line) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + + return pgpio->sense ? pgpio->sense(dev, line) : -ENODEV; +} + +int +nouveau_gpio_find(struct drm_device *dev, int idx, u8 func, u8 line, + struct gpio_func *gpio) +{ + u8 *table, *entry, version; + int i = -1; + + if (line == 0xff && func == 0xff) + return -EINVAL; + + while ((entry = dcb_gpio_entry(dev, idx, ++i, &version))) { + if (version < 0x40) { + u16 data = ROM16(entry[0]); + *gpio = (struct gpio_func) { + .line = (data & 0x001f) >> 0, + .func = (data & 0x07e0) >> 5, + .log[0] = (data & 0x1800) >> 11, + .log[1] = (data & 0x6000) >> 13, + }; + } else + if (version < 0x41) { + *gpio = (struct gpio_func) { + .line = entry[0] & 0x1f, + .func = entry[1], + .log[0] = (entry[3] & 0x18) >> 3, + .log[1] = (entry[3] & 0x60) >> 5, + }; + } else { + *gpio = (struct gpio_func) { + .line = entry[0] & 0x3f, + .func = entry[1], + .log[0] = (entry[4] & 0x30) >> 4, + .log[1] = (entry[4] & 0xc0) >> 6, + }; + } + + if ((line == 0xff || line == gpio->line) && + (func == 0xff || func == gpio->func)) + return 0; + } + + /* DCB 2.2, fixed TVDAC GPIO data */ + if ((table = dcb_table(dev)) && table[0] >= 0x22) { + if (func == DCB_GPIO_TVDAC0) { + *gpio = (struct gpio_func) { + .func = DCB_GPIO_TVDAC0, + .line = table[-4] >> 4, + .log[0] = !!(table[-5] & 2), + .log[1] = !(table[-5] & 2), + }; + return 0; + } + } + + /* Apple iMac G4 NV18 */ + if (nv_match_device(dev, 0x0189, 0x10de, 0x0010)) { + if (func == DCB_GPIO_TVDAC0) { + *gpio = (struct gpio_func) { + .func = DCB_GPIO_TVDAC0, + .line = 4, + .log[0] = 0, + .log[1] = 1, + }; + return 0; + } + } + + return -EINVAL; +} + +int +nouveau_gpio_set(struct drm_device *dev, int idx, u8 tag, u8 line, int state) +{ + struct gpio_func gpio; + int ret; + + ret = nouveau_gpio_find(dev, idx, tag, line, &gpio); + if (ret == 0) { + int dir = !!(gpio.log[state] & 0x02); + int out = !!(gpio.log[state] & 0x01); + ret = nouveau_gpio_drive(dev, idx, gpio.line, dir, out); + } + + return ret; +} + +int +nouveau_gpio_get(struct drm_device *dev, int idx, u8 tag, u8 line) +{ + struct gpio_func gpio; + int ret; + + ret = nouveau_gpio_find(dev, idx, tag, line, &gpio); + if (ret == 0) { + ret = nouveau_gpio_sense(dev, idx, gpio.line); + if (ret >= 0) + ret = (ret == (gpio.log[1] & 1)); + } + + return ret; +} + +int +nouveau_gpio_irq(struct drm_device *dev, int idx, u8 tag, u8 line, bool on) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + struct gpio_func gpio; + int ret; + + ret = nouveau_gpio_find(dev, idx, tag, line, &gpio); + if (ret == 0) { + if (idx == 0 && pgpio->irq_enable) + pgpio->irq_enable(dev, gpio.line, on); + else + ret = -ENODEV; + } + + return ret; +} + +struct gpio_isr { + struct drm_device *dev; + struct list_head head; + struct work_struct work; + int idx; + struct gpio_func func; + void (*handler)(void *, int); + void *data; + bool inhibit; +}; + +static void +nouveau_gpio_isr_bh(struct work_struct *work) +{ + struct gpio_isr *isr = container_of(work, struct gpio_isr, work); + struct drm_device *dev = isr->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + unsigned long flags; + int state; + + state = nouveau_gpio_get(dev, isr->idx, isr->func.func, isr->func.line); + if (state >= 0) + isr->handler(isr->data, state); + + spin_lock_irqsave(&pgpio->lock, flags); + isr->inhibit = false; + spin_unlock_irqrestore(&pgpio->lock, flags); +} + +void +nouveau_gpio_isr(struct drm_device *dev, int idx, u32 line_mask) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + struct gpio_isr *isr; + + if (idx != 0) + return; + + spin_lock(&pgpio->lock); + list_for_each_entry(isr, &pgpio->isr, head) { + if (line_mask & (1 << isr->func.line)) { + if (isr->inhibit) + continue; + isr->inhibit = true; + schedule_work(&isr->work); + } + } + spin_unlock(&pgpio->lock); +} + +int +nouveau_gpio_isr_add(struct drm_device *dev, int idx, u8 tag, u8 line, + void (*handler)(void *, int), void *data) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + struct gpio_isr *isr; + unsigned long flags; + int ret; + + isr = kzalloc(sizeof(*isr), GFP_KERNEL); + if (!isr) + return -ENOMEM; + + ret = nouveau_gpio_find(dev, idx, tag, line, &isr->func); + if (ret) { + kfree(isr); + return ret; + } + + INIT_WORK(&isr->work, nouveau_gpio_isr_bh); + isr->dev = dev; + isr->handler = handler; + isr->data = data; + isr->idx = idx; + + spin_lock_irqsave(&pgpio->lock, flags); + list_add(&isr->head, &pgpio->isr); + spin_unlock_irqrestore(&pgpio->lock, flags); + return 0; +} + +void +nouveau_gpio_isr_del(struct drm_device *dev, int idx, u8 tag, u8 line, + void (*handler)(void *, int), void *data) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + struct gpio_isr *isr, *tmp; + struct gpio_func func; + unsigned long flags; + LIST_HEAD(tofree); + int ret; + + ret = nouveau_gpio_find(dev, idx, tag, line, &func); + if (ret == 0) { + spin_lock_irqsave(&pgpio->lock, flags); + list_for_each_entry_safe(isr, tmp, &pgpio->isr, head) { + if (memcmp(&isr->func, &func, sizeof(func)) || + isr->idx != idx || + isr->handler != handler || isr->data != data) + continue; + list_move(&isr->head, &tofree); + } + spin_unlock_irqrestore(&pgpio->lock, flags); + + list_for_each_entry_safe(isr, tmp, &tofree, head) { + flush_work_sync(&isr->work); + kfree(isr); + } + } +} + +int +nouveau_gpio_create(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + + INIT_LIST_HEAD(&pgpio->isr); + spin_lock_init(&pgpio->lock); + + return nouveau_gpio_init(dev); +} + +void +nouveau_gpio_destroy(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + + nouveau_gpio_fini(dev); + BUG_ON(!list_empty(&pgpio->isr)); +} + +int +nouveau_gpio_init(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + int ret = 0; + + if (pgpio->init) + ret = pgpio->init(dev); + + return ret; +} + +void +nouveau_gpio_fini(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + + if (pgpio->fini) + pgpio->fini(dev); +} + +void +nouveau_gpio_reset(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + u8 *entry, version; + int ent = -1; + + while ((entry = dcb_gpio_entry(dev, 0, ++ent, &version))) { + u8 func = 0xff, line, defs, unk0, unk1; + if (version >= 0x41) { + defs = !!(entry[0] & 0x80); + line = entry[0] & 0x3f; + func = entry[1]; + unk0 = entry[2]; + unk1 = entry[3] & 0x1f; + } else + if (version >= 0x40) { + line = entry[0] & 0x1f; + func = entry[1]; + defs = !!(entry[3] & 0x01); + unk0 = !!(entry[3] & 0x02); + unk1 = !!(entry[3] & 0x04); + } else { + break; + } + + if (func == 0xff) + continue; + + nouveau_gpio_func_set(dev, func, defs); + + if (dev_priv->card_type >= NV_D0) { + nv_mask(dev, 0x00d610 + (line * 4), 0xff, unk0); + if (unk1--) + nv_mask(dev, 0x00d640 + (unk1 * 4), 0xff, line); + } else + if (dev_priv->card_type >= NV_50) { + static const u32 regs[] = { 0xe100, 0xe28c }; + u32 val = (unk1 << 16) | unk0; + u32 reg = regs[line >> 4]; line &= 0x0f; + + nv_mask(dev, reg, 0x00010001 << line, val << line); + } + } +} diff --git a/drivers/gpu/drm/nouveau/nouveau_gpio.h b/drivers/gpu/drm/nouveau/nouveau_gpio.h new file mode 100644 index 000000000000..64c5cb077ace --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_gpio.h @@ -0,0 +1,71 @@ +/* + * Copyright 2011 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. + */ + +#ifndef __NOUVEAU_GPIO_H__ +#define __NOUVEAU_GPIO_H__ + +struct gpio_func { + u8 func; + u8 line; + u8 log[2]; +}; + +/* nouveau_gpio.c */ +int nouveau_gpio_create(struct drm_device *); +void nouveau_gpio_destroy(struct drm_device *); +int nouveau_gpio_init(struct drm_device *); +void nouveau_gpio_fini(struct drm_device *); +void nouveau_gpio_reset(struct drm_device *); +int nouveau_gpio_drive(struct drm_device *, int idx, int line, + int dir, int out); +int nouveau_gpio_sense(struct drm_device *, int idx, int line); +int nouveau_gpio_find(struct drm_device *, int idx, u8 tag, u8 line, + struct gpio_func *); +int nouveau_gpio_set(struct drm_device *, int idx, u8 tag, u8 line, int state); +int nouveau_gpio_get(struct drm_device *, int idx, u8 tag, u8 line); +int nouveau_gpio_irq(struct drm_device *, int idx, u8 tag, u8 line, bool on); +void nouveau_gpio_isr(struct drm_device *, int idx, u32 mask); +int nouveau_gpio_isr_add(struct drm_device *, int idx, u8 tag, u8 line, + void (*)(void *, int state), void *data); +void nouveau_gpio_isr_del(struct drm_device *, int idx, u8 tag, u8 line, + void (*)(void *, int state), void *data); + +static inline bool +nouveau_gpio_func_valid(struct drm_device *dev, u8 tag) +{ + struct gpio_func func; + return (nouveau_gpio_find(dev, 0, tag, 0xff, &func)) == 0; +} + +static inline int +nouveau_gpio_func_set(struct drm_device *dev, u8 tag, int state) +{ + return nouveau_gpio_set(dev, 0, tag, 0xff, state); +} + +static inline int +nouveau_gpio_func_get(struct drm_device *dev, u8 tag) +{ + return nouveau_gpio_get(dev, 0, tag, 0xff); +} + +#endif diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c index 788ba33da77c..aba3362d421a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_pm.c +++ b/drivers/gpu/drm/nouveau/nouveau_pm.c @@ -26,6 +26,7 @@ #include "nouveau_drv.h" #include "nouveau_pm.h" +#include "nouveau_gpio.h" #ifdef CONFIG_ACPI #include <linux/acpi.h> @@ -38,27 +39,25 @@ static int nouveau_pwmfan_get(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; struct nouveau_pm_engine *pm = &dev_priv->engine.pm; - struct dcb_gpio_entry *gpio = NULL; + struct gpio_func gpio; u32 divs, duty; int ret; if (!pm->pwm_get) return -ENODEV; - gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_PWM_FAN); - if (gpio) { - ret = pm->pwm_get(dev, gpio->line, &divs, &duty); + ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio); + if (ret == 0) { + ret = pm->pwm_get(dev, gpio.line, &divs, &duty); if (ret == 0) { divs = max(divs, duty); - if (dev_priv->card_type <= NV_40 || - (gpio->state[0] & 1)) + if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1)) duty = divs - duty; return (duty * 100) / divs; } - return pgpio->get(dev, gpio->tag) * 100; + return nouveau_gpio_func_get(dev, gpio.func) * 100; } return -ENODEV; @@ -69,14 +68,15 @@ nouveau_pwmfan_set(struct drm_device *dev, int percent) { struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_pm_engine *pm = &dev_priv->engine.pm; - struct dcb_gpio_entry *gpio; + struct gpio_func gpio; u32 divs, duty; + int ret; if (!pm->pwm_set) return -ENODEV; - gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_PWM_FAN); - if (gpio) { + ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio); + if (ret == 0) { divs = pm->pwm_divisor; if (pm->fan.pwm_freq) { /*XXX: PNVIO clock more than likely... */ @@ -86,11 +86,10 @@ nouveau_pwmfan_set(struct drm_device *dev, int percent) } duty = ((divs * percent) + 99) / 100; - if (dev_priv->card_type <= NV_40 || - (gpio->state[0] & 1)) + if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1)) duty = divs - duty; - return pm->pwm_set(dev, gpio->line, divs, duty); + return pm->pwm_set(dev, gpio.line, divs, duty); } return -ENODEV; @@ -472,24 +471,24 @@ nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr, struct drm_device *dev = dev_get_drvdata(d); struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; - struct dcb_gpio_entry *gpio; + struct gpio_func gpio; u32 cycles, cur, prev; u64 start; + int ret; - gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_FAN_SENSE); - if (!gpio) - return -ENODEV; + ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio); + if (ret) + return ret; /* Monitor the GPIO input 0x3b for 250ms. * When the fan spins, it changes the value of GPIO FAN_SENSE. * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation. */ start = ptimer->read(dev); - prev = pgpio->get(dev, DCB_GPIO_FAN_SENSE); + prev = nouveau_gpio_sense(dev, 0, gpio.line); cycles = 0; do { - cur = pgpio->get(dev, DCB_GPIO_FAN_SENSE); + cur = nouveau_gpio_sense(dev, 0, gpio.line); if (prev != cur) { cycles++; prev = cur; @@ -701,7 +700,7 @@ nouveau_hwmon_init(struct drm_device *dev) } /* if the card can read the fan rpm */ - if (nouveau_bios_gpio_entry(dev, DCB_GPIO_FAN_SENSE)) { + if (nouveau_gpio_func_valid(dev, DCB_GPIO_FAN_SENSE)) { ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_fan_rpm_attrgroup); if (ret) diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index 5d8ad4ec3ac1..c4edba6a457d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -36,6 +36,7 @@ #include "nouveau_drm.h" #include "nouveau_fbcon.h" #include "nouveau_ramht.h" +#include "nouveau_gpio.h" #include "nouveau_pm.h" #include "nv50_display.h" @@ -83,11 +84,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->display.destroy = nv04_display_destroy; engine->display.init = nv04_display_init; engine->display.fini = nv04_display_fini; - engine->gpio.init = nouveau_stub_init; - engine->gpio.takedown = nouveau_stub_takedown; - engine->gpio.get = NULL; - engine->gpio.set = NULL; - engine->gpio.irq_enable = NULL; engine->pm.clocks_get = nv04_pm_clocks_get; engine->pm.clocks_pre = nv04_pm_clocks_pre; engine->pm.clocks_set = nv04_pm_clocks_set; @@ -133,11 +129,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->display.destroy = nv04_display_destroy; engine->display.init = nv04_display_init; engine->display.fini = nv04_display_fini; - engine->gpio.init = nouveau_stub_init; - engine->gpio.takedown = nouveau_stub_takedown; - engine->gpio.get = nv10_gpio_get; - engine->gpio.set = nv10_gpio_set; - engine->gpio.irq_enable = NULL; + engine->gpio.drive = nv10_gpio_drive; + engine->gpio.sense = nv10_gpio_sense; engine->pm.clocks_get = nv04_pm_clocks_get; engine->pm.clocks_pre = nv04_pm_clocks_pre; engine->pm.clocks_set = nv04_pm_clocks_set; @@ -183,11 +176,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->display.destroy = nv04_display_destroy; engine->display.init = nv04_display_init; engine->display.fini = nv04_display_fini; - engine->gpio.init = nouveau_stub_init; - engine->gpio.takedown = nouveau_stub_takedown; - engine->gpio.get = nv10_gpio_get; - engine->gpio.set = nv10_gpio_set; - engine->gpio.irq_enable = NULL; + engine->gpio.drive = nv10_gpio_drive; + engine->gpio.sense = nv10_gpio_sense; engine->pm.clocks_get = nv04_pm_clocks_get; engine->pm.clocks_pre = nv04_pm_clocks_pre; engine->pm.clocks_set = nv04_pm_clocks_set; @@ -233,11 +223,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->display.destroy = nv04_display_destroy; engine->display.init = nv04_display_init; engine->display.fini = nv04_display_fini; - engine->gpio.init = nouveau_stub_init; - engine->gpio.takedown = nouveau_stub_takedown; - engine->gpio.get = nv10_gpio_get; - engine->gpio.set = nv10_gpio_set; - engine->gpio.irq_enable = NULL; + engine->gpio.drive = nv10_gpio_drive; + engine->gpio.sense = nv10_gpio_sense; engine->pm.clocks_get = nv04_pm_clocks_get; engine->pm.clocks_pre = nv04_pm_clocks_pre; engine->pm.clocks_set = nv04_pm_clocks_set; @@ -286,11 +273,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->display.destroy = nv04_display_destroy; engine->display.init = nv04_display_init; engine->display.fini = nv04_display_fini; - engine->gpio.init = nouveau_stub_init; - engine->gpio.takedown = nouveau_stub_takedown; - engine->gpio.get = nv10_gpio_get; - engine->gpio.set = nv10_gpio_set; - engine->gpio.irq_enable = NULL; + engine->gpio.drive = nv10_gpio_drive; + engine->gpio.sense = nv10_gpio_sense; engine->pm.clocks_get = nv40_pm_clocks_get; engine->pm.clocks_pre = nv40_pm_clocks_pre; engine->pm.clocks_set = nv40_pm_clocks_set; @@ -345,11 +329,9 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->display.init = nv50_display_init; engine->display.fini = nv50_display_fini; engine->gpio.init = nv50_gpio_init; - engine->gpio.takedown = nv50_gpio_fini; - engine->gpio.get = nv50_gpio_get; - engine->gpio.set = nv50_gpio_set; - engine->gpio.irq_register = nv50_gpio_irq_register; - engine->gpio.irq_unregister = nv50_gpio_irq_unregister; + engine->gpio.fini = nv50_gpio_fini; + engine->gpio.drive = nv50_gpio_drive; + engine->gpio.sense = nv50_gpio_sense; engine->gpio.irq_enable = nv50_gpio_irq_enable; switch (dev_priv->chipset) { case 0x84: @@ -421,11 +403,9 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->display.init = nv50_display_init; engine->display.fini = nv50_display_fini; engine->gpio.init = nv50_gpio_init; - engine->gpio.takedown = nouveau_stub_takedown; - engine->gpio.get = nv50_gpio_get; - engine->gpio.set = nv50_gpio_set; - engine->gpio.irq_register = nv50_gpio_irq_register; - engine->gpio.irq_unregister = nv50_gpio_irq_unregister; + engine->gpio.fini = nv50_gpio_fini; + engine->gpio.drive = nv50_gpio_drive; + engine->gpio.sense = nv50_gpio_sense; engine->gpio.irq_enable = nv50_gpio_irq_enable; engine->vram.init = nvc0_vram_init; engine->vram.takedown = nv50_vram_fini; @@ -474,11 +454,9 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->display.init = nvd0_display_init; engine->display.fini = nvd0_display_fini; engine->gpio.init = nv50_gpio_init; - engine->gpio.takedown = nouveau_stub_takedown; - engine->gpio.get = nvd0_gpio_get; - engine->gpio.set = nvd0_gpio_set; - engine->gpio.irq_register = nv50_gpio_irq_register; - engine->gpio.irq_unregister = nv50_gpio_irq_unregister; + engine->gpio.fini = nv50_gpio_fini; + engine->gpio.drive = nvd0_gpio_drive; + engine->gpio.sense = nvd0_gpio_sense; engine->gpio.irq_enable = nv50_gpio_irq_enable; engine->vram.init = nvc0_vram_init; engine->vram.takedown = nv50_vram_fini; @@ -630,7 +608,7 @@ nouveau_card_init(struct drm_device *dev) goto out_gart; /* PGPIO */ - ret = engine->gpio.init(dev); + ret = nouveau_gpio_create(dev); if (ret) goto out_mc; @@ -798,7 +776,7 @@ out_engine: out_timer: engine->timer.takedown(dev); out_gpio: - engine->gpio.takedown(dev); + nouveau_gpio_destroy(dev); out_mc: engine->mc.takedown(dev); out_gart: @@ -851,7 +829,7 @@ static void nouveau_card_takedown(struct drm_device *dev) } engine->fb.takedown(dev); engine->timer.takedown(dev); - engine->gpio.takedown(dev); + nouveau_gpio_destroy(dev); engine->mc.takedown(dev); engine->display.late_takedown(dev); diff --git a/drivers/gpu/drm/nouveau/nouveau_volt.c b/drivers/gpu/drm/nouveau/nouveau_volt.c index ac15b46ea3a0..b010cb997b34 100644 --- a/drivers/gpu/drm/nouveau/nouveau_volt.c +++ b/drivers/gpu/drm/nouveau/nouveau_volt.c @@ -26,6 +26,7 @@ #include "nouveau_drv.h" #include "nouveau_pm.h" +#include "nouveau_gpio.h" static const enum dcb_gpio_tag vidtag[] = { 0x04, 0x05, 0x06, 0x1a, 0x73 }; static int nr_vidtag = sizeof(vidtag) / sizeof(vidtag[0]); @@ -34,7 +35,6 @@ int nouveau_voltage_gpio_get(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio; struct nouveau_pm_voltage *volt = &dev_priv->engine.pm.voltage; u8 vid = 0; int i; @@ -43,7 +43,7 @@ nouveau_voltage_gpio_get(struct drm_device *dev) if (!(volt->vid_mask & (1 << i))) continue; - vid |= gpio->get(dev, vidtag[i]) << i; + vid |= nouveau_gpio_func_get(dev, vidtag[i]) << i; } return nouveau_volt_lvl_lookup(dev, vid); @@ -53,7 +53,6 @@ int nouveau_voltage_gpio_set(struct drm_device *dev, int voltage) { struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio; struct nouveau_pm_voltage *volt = &dev_priv->engine.pm.voltage; int vid, i; @@ -65,7 +64,7 @@ nouveau_voltage_gpio_set(struct drm_device *dev, int voltage) if (!(volt->vid_mask & (1 << i))) continue; - gpio->set(dev, vidtag[i], !!(vid & (1 << i))); + nouveau_gpio_func_set(dev, vidtag[i], !!(vid & (1 << i))); } return 0; @@ -194,7 +193,7 @@ nouveau_volt_init(struct drm_device *dev) return; } - if (!nouveau_bios_gpio_entry(dev, vidtag[i])) { + if (!nouveau_gpio_func_valid(dev, vidtag[i])) { NV_DEBUG(dev, "vid bit %d has no gpio tag\n", i); return; } diff --git a/drivers/gpu/drm/nouveau/nv04_dac.c b/drivers/gpu/drm/nouveau/nv04_dac.c index e000455e06d0..8300266ffaea 100644 --- a/drivers/gpu/drm/nouveau/nv04_dac.c +++ b/drivers/gpu/drm/nouveau/nv04_dac.c @@ -32,6 +32,7 @@ #include "nouveau_connector.h" #include "nouveau_crtc.h" #include "nouveau_hw.h" +#include "nouveau_gpio.h" #include "nvreg.h" int nv04_dac_output_offset(struct drm_encoder *encoder) @@ -220,7 +221,6 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder) { struct drm_device *dev = encoder->dev; struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio; struct dcb_entry *dcb = nouveau_encoder(encoder)->dcb; uint32_t sample, testval, regoffset = nv04_dac_output_offset(encoder); uint32_t saved_powerctrl_2 = 0, saved_powerctrl_4 = 0, saved_routput, @@ -252,11 +252,11 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder) nvWriteMC(dev, NV_PBUS_POWERCTRL_4, saved_powerctrl_4 & 0xffffffcf); } - saved_gpio1 = gpio->get(dev, DCB_GPIO_TVDAC1); - saved_gpio0 = gpio->get(dev, DCB_GPIO_TVDAC0); + saved_gpio1 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC1); + saved_gpio0 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC0); - gpio->set(dev, DCB_GPIO_TVDAC1, dcb->type == OUTPUT_TV); - gpio->set(dev, DCB_GPIO_TVDAC0, dcb->type == OUTPUT_TV); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, dcb->type == OUTPUT_TV); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, dcb->type == OUTPUT_TV); msleep(4); @@ -306,8 +306,8 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder) nvWriteMC(dev, NV_PBUS_POWERCTRL_4, saved_powerctrl_4); nvWriteMC(dev, NV_PBUS_POWERCTRL_2, saved_powerctrl_2); - gpio->set(dev, DCB_GPIO_TVDAC1, saved_gpio1); - gpio->set(dev, DCB_GPIO_TVDAC0, saved_gpio0); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, saved_gpio1); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, saved_gpio0); return sample; } diff --git a/drivers/gpu/drm/nouveau/nv10_gpio.c b/drivers/gpu/drm/nouveau/nv10_gpio.c index 748c9f739116..419d6495649b 100644 --- a/drivers/gpu/drm/nouveau/nv10_gpio.c +++ b/drivers/gpu/drm/nouveau/nv10_gpio.c @@ -28,65 +28,55 @@ #include "nouveau_drv.h" #include "nouveau_hw.h" -static bool -get_gpio_location(struct dcb_gpio_entry *ent, uint32_t *reg, uint32_t *shift, - uint32_t *mask) -{ - if (ent->line < 2) { - *reg = NV_PCRTC_GPIO; - *shift = ent->line * 16; - *mask = 0x11; - - } else if (ent->line < 10) { - *reg = NV_PCRTC_GPIO_EXT; - *shift = (ent->line - 2) * 4; - *mask = 0x3; - - } else if (ent->line < 14) { - *reg = NV_PCRTC_850; - *shift = (ent->line - 10) * 4; - *mask = 0x3; - - } else { - return false; - } - - return true; -} - int -nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag) +nv10_gpio_sense(struct drm_device *dev, int line) { - struct dcb_gpio_entry *ent = nouveau_bios_gpio_entry(dev, tag); - uint32_t reg, shift, mask, value; - - if (!ent) - return -ENODEV; - - if (!get_gpio_location(ent, ®, &shift, &mask)) - return -ENODEV; - - value = NVReadCRTC(dev, 0, reg) >> shift; + if (line < 2) { + line = line * 16; + line = NVReadCRTC(dev, 0, NV_PCRTC_GPIO) >> line; + return !!(line & 0x0100); + } else + if (line < 10) { + line = (line - 2) * 4; + line = NVReadCRTC(dev, 0, NV_PCRTC_GPIO_EXT) >> line; + return !!(line & 0x04); + } else + if (line < 14) { + line = (line - 10) * 4; + line = NVReadCRTC(dev, 0, NV_PCRTC_850) >> line; + return !!(line & 0x04); + } - return (value & 1) == ent->state[1]; + return -EINVAL; } int -nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state) +nv10_gpio_drive(struct drm_device *dev, int line, int dir, int out) { - struct dcb_gpio_entry *ent = nouveau_bios_gpio_entry(dev, tag); - uint32_t reg, shift, mask, value; - - if (!ent) - return -ENODEV; - - if (!get_gpio_location(ent, ®, &shift, &mask)) - return -ENODEV; - - value = ent->state[state & 1] << shift; - mask = ~(mask << shift); - - NVWriteCRTC(dev, 0, reg, value | (NVReadCRTC(dev, 0, reg) & mask)); + u32 reg, mask, data; + + if (line < 2) { + line = line * 16; + reg = NV_PCRTC_GPIO; + mask = 0x00000011; + data = (dir << 4) | out; + } else + if (line < 10) { + line = (line - 2) * 4; + reg = NV_PCRTC_GPIO_EXT; + mask = 0x00000003 << ((line - 2) * 4); + data = (dir << 1) | out; + } else + if (line < 14) { + line = (line - 10) * 4; + reg = NV_PCRTC_850; + mask = 0x00000003; + data = (dir << 1) | out; + } else { + return -EINVAL; + } + mask = NVReadCRTC(dev, 0, reg) & ~(mask << line); + NVWriteCRTC(dev, 0, reg, mask | (data << line)); return 0; } diff --git a/drivers/gpu/drm/nouveau/nv17_tv.c b/drivers/gpu/drm/nouveau/nv17_tv.c index 3900cebba560..696d7e7dc2a0 100644 --- a/drivers/gpu/drm/nouveau/nv17_tv.c +++ b/drivers/gpu/drm/nouveau/nv17_tv.c @@ -30,6 +30,7 @@ #include "nouveau_encoder.h" #include "nouveau_connector.h" #include "nouveau_crtc.h" +#include "nouveau_gpio.h" #include "nouveau_hw.h" #include "nv17_tv.h" @@ -37,7 +38,6 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder) { struct drm_device *dev = encoder->dev; struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio; uint32_t testval, regoffset = nv04_dac_output_offset(encoder); uint32_t gpio0, gpio1, fp_htotal, fp_hsync_start, fp_hsync_end, fp_control, test_ctrl, dacclk, ctv_14, ctv_1c, ctv_6c; @@ -53,8 +53,8 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder) head = (dacclk & 0x100) >> 8; /* Save the previous state. */ - gpio1 = gpio->get(dev, DCB_GPIO_TVDAC1); - gpio0 = gpio->get(dev, DCB_GPIO_TVDAC0); + gpio1 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC1); + gpio0 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC0); fp_htotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL); fp_hsync_start = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START); fp_hsync_end = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END); @@ -65,8 +65,8 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder) ctv_6c = NVReadRAMDAC(dev, head, 0x680c6c); /* Prepare the DAC for load detection. */ - gpio->set(dev, DCB_GPIO_TVDAC1, true); - gpio->set(dev, DCB_GPIO_TVDAC0, true); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, true); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, true); NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, 1343); NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, 1047); @@ -111,8 +111,8 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder) NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END, fp_hsync_end); NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, fp_hsync_start); NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, fp_htotal); - gpio->set(dev, DCB_GPIO_TVDAC1, gpio1); - gpio->set(dev, DCB_GPIO_TVDAC0, gpio0); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, gpio1); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, gpio0); return sample; } @@ -357,8 +357,6 @@ static bool nv17_tv_mode_fixup(struct drm_encoder *encoder, static void nv17_tv_dpms(struct drm_encoder *encoder, int mode) { struct drm_device *dev = encoder->dev; - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio; struct nv17_tv_state *regs = &to_tv_enc(encoder)->state; struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder); @@ -383,8 +381,8 @@ static void nv17_tv_dpms(struct drm_encoder *encoder, int mode) nv_load_ptv(dev, regs, 200); - gpio->set(dev, DCB_GPIO_TVDAC1, mode == DRM_MODE_DPMS_ON); - gpio->set(dev, DCB_GPIO_TVDAC0, mode == DRM_MODE_DPMS_ON); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, mode == DRM_MODE_DPMS_ON); + nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, mode == DRM_MODE_DPMS_ON); nv04_dac_update_dacclk(encoder, mode == DRM_MODE_DPMS_ON); } diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 9708b94a0a7b..f408e105a0cd 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -32,6 +32,7 @@ #include "nouveau_fb.h" #include "nouveau_fbcon.h" #include "nouveau_ramht.h" +#include "nouveau_gpio.h" #include "drm_crtc_helper.h" static void nv50_display_isr(struct drm_device *); @@ -140,8 +141,6 @@ nv50_display_sync(struct drm_device *dev) int nv50_display_init(struct drm_device *dev) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; struct drm_connector *connector; struct nouveau_channel *evo; int ret, i; @@ -240,11 +239,7 @@ nv50_display_init(struct drm_device *dev) /* enable hotplug interrupts */ list_for_each_entry(connector, &dev->mode_config.connector_list, head) { struct nouveau_connector *conn = nouveau_connector(connector); - - if (conn->hpd == DCB_GPIO_UNUSED) - continue; - - pgpio->irq_enable(dev, conn->hpd, true); + nouveau_gpio_irq(dev, 0, conn->hpd, 0xff, true); } ret = nv50_evo_init(dev); diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c b/drivers/gpu/drm/nouveau/nv50_gpio.c index 793a5ccca121..f429e6a8ca7a 100644 --- a/drivers/gpu/drm/nouveau/nv50_gpio.c +++ b/drivers/gpu/drm/nouveau/nv50_gpio.c @@ -25,229 +25,95 @@ #include "drmP.h" #include "nouveau_drv.h" #include "nouveau_hw.h" +#include "nouveau_gpio.h" #include "nv50_display.h" -static void nv50_gpio_isr(struct drm_device *dev); -static void nv50_gpio_isr_bh(struct work_struct *work); - -struct nv50_gpio_priv { - struct list_head handlers; - spinlock_t lock; -}; - -struct nv50_gpio_handler { - struct drm_device *dev; - struct list_head head; - struct work_struct work; - bool inhibit; - - struct dcb_gpio_entry *gpio; - - void (*handler)(void *data, int state); - void *data; -}; - static int -nv50_gpio_location(struct dcb_gpio_entry *gpio, uint32_t *reg, uint32_t *shift) +nv50_gpio_location(int line, u32 *reg, u32 *shift) { const uint32_t nv50_gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 }; - if (gpio->line >= 32) + if (line >= 32) return -EINVAL; - *reg = nv50_gpio_reg[gpio->line >> 3]; - *shift = (gpio->line & 7) << 2; + *reg = nv50_gpio_reg[line >> 3]; + *shift = (line & 7) << 2; return 0; } int -nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag) +nv50_gpio_drive(struct drm_device *dev, int line, int dir, int out) { - struct dcb_gpio_entry *gpio; - uint32_t r, s, v; - - gpio = nouveau_bios_gpio_entry(dev, tag); - if (!gpio) - return -ENOENT; + u32 reg, shift; - if (nv50_gpio_location(gpio, &r, &s)) + if (nv50_gpio_location(line, ®, &shift)) return -EINVAL; - v = nv_rd32(dev, r) >> (s + 2); - return ((v & 1) == (gpio->state[1] & 1)); + nv_mask(dev, reg, 7 << shift, (((dir ^ 1) << 1) | out) << shift); + return 0; } int -nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state) +nv50_gpio_sense(struct drm_device *dev, int line) { - struct dcb_gpio_entry *gpio; - uint32_t r, s, v; - - gpio = nouveau_bios_gpio_entry(dev, tag); - if (!gpio) - return -ENOENT; + u32 reg, shift; - if (nv50_gpio_location(gpio, &r, &s)) + if (nv50_gpio_location(line, ®, &shift)) return -EINVAL; - v = nv_rd32(dev, r) & ~(0x3 << s); - v |= (gpio->state[state] ^ 2) << s; - nv_wr32(dev, r, v); - return 0; + return !!(nv_rd32(dev, reg) & (4 << shift)); } -int -nvd0_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag) +void +nv50_gpio_irq_enable(struct drm_device *dev, int line, bool on) { - struct dcb_gpio_entry *gpio; - u32 v; - - gpio = nouveau_bios_gpio_entry(dev, tag); - if (!gpio) - return -ENOENT; + u32 reg = line < 16 ? 0xe050 : 0xe070; + u32 mask = 0x00010001 << (line & 0xf); - v = nv_rd32(dev, 0x00d610 + (gpio->line * 4)); - v &= 0x00004000; - return (!!v == (gpio->state[1] & 1)); + nv_wr32(dev, reg + 4, mask); + nv_mask(dev, reg + 0, mask, on ? mask : 0); } int -nvd0_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state) +nvd0_gpio_drive(struct drm_device *dev, int line, int dir, int out) { - struct dcb_gpio_entry *gpio; - u32 v; - - gpio = nouveau_bios_gpio_entry(dev, tag); - if (!gpio) - return -ENOENT; - - v = gpio->state[state] ^ 2; - - nv_mask(dev, 0x00d610 + (gpio->line * 4), 0x00003000, v << 12); + u32 data = ((dir ^ 1) << 13) | (out << 12); + nv_mask(dev, 0x00d610 + (line * 4), 0x00003000, data); + nv_mask(dev, 0x00d604, 0x00000001, 0x00000001); /* update? */ return 0; } int -nv50_gpio_irq_register(struct drm_device *dev, enum dcb_gpio_tag tag, - void (*handler)(void *, int), void *data) +nvd0_gpio_sense(struct drm_device *dev, int line) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; - struct nv50_gpio_priv *priv = pgpio->priv; - struct nv50_gpio_handler *gpioh; - struct dcb_gpio_entry *gpio; - unsigned long flags; - - gpio = nouveau_bios_gpio_entry(dev, tag); - if (!gpio) - return -ENOENT; - - gpioh = kzalloc(sizeof(*gpioh), GFP_KERNEL); - if (!gpioh) - return -ENOMEM; - - INIT_WORK(&gpioh->work, nv50_gpio_isr_bh); - gpioh->dev = dev; - gpioh->gpio = gpio; - gpioh->handler = handler; - gpioh->data = data; - - spin_lock_irqsave(&priv->lock, flags); - list_add(&gpioh->head, &priv->handlers); - spin_unlock_irqrestore(&priv->lock, flags); - return 0; + return !!(nv_rd32(dev, 0x00d610 + (line * 4)) & 0x00004000); } -void -nv50_gpio_irq_unregister(struct drm_device *dev, enum dcb_gpio_tag tag, - void (*handler)(void *, int), void *data) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; - struct nv50_gpio_priv *priv = pgpio->priv; - struct nv50_gpio_handler *gpioh, *tmp; - struct dcb_gpio_entry *gpio; - LIST_HEAD(tofree); - unsigned long flags; - - gpio = nouveau_bios_gpio_entry(dev, tag); - if (!gpio) - return; - - spin_lock_irqsave(&priv->lock, flags); - list_for_each_entry_safe(gpioh, tmp, &priv->handlers, head) { - if (gpioh->gpio != gpio || - gpioh->handler != handler || - gpioh->data != data) - continue; - list_move(&gpioh->head, &tofree); - } - spin_unlock_irqrestore(&priv->lock, flags); - - list_for_each_entry_safe(gpioh, tmp, &tofree, head) { - flush_work_sync(&gpioh->work); - kfree(gpioh); - } -} - -bool -nv50_gpio_irq_enable(struct drm_device *dev, enum dcb_gpio_tag tag, bool on) -{ - struct dcb_gpio_entry *gpio; - u32 reg, mask; - - gpio = nouveau_bios_gpio_entry(dev, tag); - if (!gpio) - return false; - - reg = gpio->line < 16 ? 0xe050 : 0xe070; - mask = 0x00010001 << (gpio->line & 0xf); - - nv_wr32(dev, reg + 4, mask); - reg = nv_mask(dev, reg + 0, mask, on ? mask : 0); - return (reg & mask) == mask; -} - -static int -nv50_gpio_create(struct drm_device *dev) +static void +nv50_gpio_isr(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; - struct nv50_gpio_priv *priv; - - priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (!priv) - return -ENOMEM; + u32 intr0, intr1 = 0; + u32 hi, lo; - INIT_LIST_HEAD(&priv->handlers); - spin_lock_init(&priv->lock); - pgpio->priv = priv; - return 0; -} + intr0 = nv_rd32(dev, 0xe054) & nv_rd32(dev, 0xe050); + if (dev_priv->chipset >= 0x90) + intr1 = nv_rd32(dev, 0xe074) & nv_rd32(dev, 0xe070); -static void -nv50_gpio_destroy(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; + hi = (intr0 & 0x0000ffff) | (intr1 << 16); + lo = (intr0 >> 16) | (intr1 & 0xffff0000); + nouveau_gpio_isr(dev, 0, hi | lo); - kfree(pgpio->priv); - pgpio->priv = NULL; + nv_wr32(dev, 0xe054, intr0); + if (dev_priv->chipset >= 0x90) + nv_wr32(dev, 0xe074, intr1); } int nv50_gpio_init(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; - int ret; - - if (!pgpio->priv) { - ret = nv50_gpio_create(dev); - if (ret) - return ret; - } /* disable, and ack any pending gpio interrupts */ nv_wr32(dev, 0xe050, 0x00000000); @@ -270,64 +136,4 @@ nv50_gpio_fini(struct drm_device *dev) if (dev_priv->chipset >= 0x90) nv_wr32(dev, 0xe070, 0x00000000); nouveau_irq_unregister(dev, 21); - - nv50_gpio_destroy(dev); -} - -static void -nv50_gpio_isr_bh(struct work_struct *work) -{ - struct nv50_gpio_handler *gpioh = - container_of(work, struct nv50_gpio_handler, work); - struct drm_nouveau_private *dev_priv = gpioh->dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; - struct nv50_gpio_priv *priv = pgpio->priv; - unsigned long flags; - int state; - - state = pgpio->get(gpioh->dev, gpioh->gpio->tag); - if (state < 0) - return; - - gpioh->handler(gpioh->data, state); - - spin_lock_irqsave(&priv->lock, flags); - gpioh->inhibit = false; - spin_unlock_irqrestore(&priv->lock, flags); -} - -static void -nv50_gpio_isr(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio; - struct nv50_gpio_priv *priv = pgpio->priv; - struct nv50_gpio_handler *gpioh; - u32 intr0, intr1 = 0; - u32 hi, lo, ch; - - intr0 = nv_rd32(dev, 0xe054) & nv_rd32(dev, 0xe050); - if (dev_priv->chipset >= 0x90) - intr1 = nv_rd32(dev, 0xe074) & nv_rd32(dev, 0xe070); - - hi = (intr0 & 0x0000ffff) | (intr1 << 16); - lo = (intr0 >> 16) | (intr1 & 0xffff0000); - ch = hi | lo; - - nv_wr32(dev, 0xe054, intr0); - if (dev_priv->chipset >= 0x90) - nv_wr32(dev, 0xe074, intr1); - - spin_lock(&priv->lock); - list_for_each_entry(gpioh, &priv->handlers, head) { - if (!(ch & (1 << gpioh->gpio->line))) - continue; - - if (gpioh->inhibit) - continue; - gpioh->inhibit = true; - - schedule_work(&gpioh->work); - } - spin_unlock(&priv->lock); } |