diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 35 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_fb.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_acpi.c | 160 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_drv.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_drv.h | 19 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_fbcon.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_state.c | 32 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/Makefile | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_atpx_handler.c | 258 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_bios.c | 44 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 40 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_fb.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_kms.c | 3 |
18 files changed, 559 insertions, 70 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 2307f98349f7..42ca07f04a21 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -35,6 +35,7 @@ #include "i915_drv.h" #include "i915_trace.h" #include <linux/vgaarb.h> +#include <linux/vga_switcheroo.h> /* Really want an OS-independent resettable timer. Would like to have * this loop run for (eg) 3 sec, but have the timer reset every time @@ -1199,6 +1200,32 @@ static unsigned int i915_vga_set_decode(void *cookie, bool state) return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM; } +static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + pm_message_t pmm = { .event = PM_EVENT_SUSPEND }; + if (state == VGA_SWITCHEROO_ON) { + printk(KERN_INFO "i915: switched off\n"); + /* i915 resume handler doesn't set to D0 */ + pci_set_power_state(dev->pdev, PCI_D0); + i915_resume(dev); + } else { + printk(KERN_ERR "i915: switched off\n"); + i915_suspend(dev, pmm); + } +} + +static bool i915_switcheroo_can_switch(struct pci_dev *pdev) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + bool can_switch; + + spin_lock(&dev->count_lock); + can_switch = (dev->open_count == 0); + spin_unlock(&dev->count_lock); + return can_switch; +} + static int i915_load_modeset_init(struct drm_device *dev, unsigned long prealloc_start, unsigned long prealloc_size, @@ -1260,6 +1287,12 @@ static int i915_load_modeset_init(struct drm_device *dev, if (ret) goto destroy_ringbuffer; + ret = vga_switcheroo_register_client(dev->pdev, + i915_switcheroo_set_state, + i915_switcheroo_can_switch); + if (ret) + goto destroy_ringbuffer; + intel_modeset_init(dev); ret = drm_irq_install(dev); @@ -1544,6 +1577,7 @@ int i915_driver_unload(struct drm_device *dev) dev_priv->child_dev_num = 0; } drm_irq_uninstall(dev); + vga_switcheroo_unregister_client(dev->pdev); vga_client_register(dev->pdev, NULL, NULL, NULL); } @@ -1611,6 +1645,7 @@ void i915_driver_lastclose(struct drm_device * dev) if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) { drm_fb_helper_restore(); + vga_switcheroo_process_delayed_switch(); return; } diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index cf4cb3e9a0c2..fd739efe73ce 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -201,7 +201,7 @@ static int i915_drm_freeze(struct drm_device *dev) return 0; } -static int i915_suspend(struct drm_device *dev, pm_message_t state) +int i915_suspend(struct drm_device *dev, pm_message_t state) { int error; @@ -255,7 +255,7 @@ static int i915_drm_thaw(struct drm_device *dev) return error; } -static int i915_resume(struct drm_device *dev) +int i915_resume(struct drm_device *dev) { if (pci_enable_device(dev->pdev)) return -EIO; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index b99b6a841d95..d77e56651352 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -736,6 +736,8 @@ extern unsigned int i915_fbpercrtc; extern unsigned int i915_powersave; extern unsigned int i915_lvds_downclock; +extern int i915_suspend(struct drm_device *dev, pm_message_t state); +extern int i915_resume(struct drm_device *dev); extern void i915_save_display(struct drm_device *dev); extern void i915_restore_display(struct drm_device *dev); extern int i915_master_create(struct drm_device *dev, struct drm_master *master); diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c index aaabbcbe5905..8cd791dc5b29 100644 --- a/drivers/gpu/drm/i915/intel_fb.c +++ b/drivers/gpu/drm/i915/intel_fb.c @@ -35,6 +35,7 @@ #include <linux/delay.h> #include <linux/fb.h> #include <linux/init.h> +#include <linux/vga_switcheroo.h> #include "drmP.h" #include "drm.h" @@ -235,6 +236,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width, obj_priv->gtt_offset, fbo); mutex_unlock(&dev->struct_mutex); + vga_switcheroo_client_fb_set(dev->pdev, info); return 0; out_unpin: diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index 48227e744753..0e0730a53137 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -11,6 +11,8 @@ #include "nouveau_drm.h" #include "nv50_display.h" +#include <linux/vga_switcheroo.h> + #define NOUVEAU_DSM_SUPPORTED 0x00 #define NOUVEAU_DSM_SUPPORTED_FUNCTIONS 0x00 @@ -28,31 +30,30 @@ #define NOUVEAU_DSM_POWER_SPEED 0x01 #define NOUVEAU_DSM_POWER_STAMINA 0x02 -static int nouveau_dsm(struct drm_device *dev, int func, int arg, int *result) -{ - static char muid[] = { - 0xA0, 0xA0, 0x95, 0x9D, 0x60, 0x00, 0x48, 0x4D, - 0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4, - }; +static struct nouveau_dsm_priv { + bool dsm_detected; + acpi_handle dhandle; + acpi_handle dsm_handle; +} nouveau_dsm_priv; + +static const char nouveau_dsm_muid[] = { + 0xA0, 0xA0, 0x95, 0x9D, 0x60, 0x00, 0x48, 0x4D, + 0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4, +}; - struct pci_dev *pdev = dev->pdev; - struct acpi_handle *handle; +static int nouveau_dsm(acpi_handle handle, int func, int arg, int *result) +{ struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; struct acpi_object_list input; union acpi_object params[4]; union acpi_object *obj; int err; - handle = DEVICE_ACPI_HANDLE(&pdev->dev); - - if (!handle) - return -ENODEV; - input.count = 4; input.pointer = params; params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = sizeof(muid); - params[0].buffer.pointer = (char *)muid; + params[0].buffer.length = sizeof(nouveau_dsm_muid); + params[0].buffer.pointer = (char *)nouveau_dsm_muid; params[1].type = ACPI_TYPE_INTEGER; params[1].integer.value = 0x00000102; params[2].type = ACPI_TYPE_INTEGER; @@ -62,7 +63,7 @@ static int nouveau_dsm(struct drm_device *dev, int func, int arg, int *result) err = acpi_evaluate_object(handle, "_DSM", &input, &output); if (err) { - NV_INFO(dev, "failed to evaluate _DSM: %d\n", err); + printk(KERN_INFO "failed to evaluate _DSM: %d\n", err); return err; } @@ -86,40 +87,119 @@ static int nouveau_dsm(struct drm_device *dev, int func, int arg, int *result) return 0; } -int nouveau_hybrid_setup(struct drm_device *dev) +static int nouveau_dsm_switch_mux(acpi_handle handle, int mux_id) { - int result; - - if (nouveau_dsm(dev, NOUVEAU_DSM_POWER, NOUVEAU_DSM_POWER_STATE, - &result)) - return -ENODEV; - - NV_INFO(dev, "_DSM hardware status gave 0x%x\n", result); - - if (result) { /* Ensure that the external GPU is enabled */ - nouveau_dsm(dev, NOUVEAU_DSM_LED, NOUVEAU_DSM_LED_SPEED, NULL); - nouveau_dsm(dev, NOUVEAU_DSM_POWER, NOUVEAU_DSM_POWER_SPEED, - NULL); - } else { /* Stamina mode - disable the external GPU */ - nouveau_dsm(dev, NOUVEAU_DSM_LED, NOUVEAU_DSM_LED_STAMINA, - NULL); - nouveau_dsm(dev, NOUVEAU_DSM_POWER, NOUVEAU_DSM_POWER_STAMINA, - NULL); - } + return nouveau_dsm(handle, NOUVEAU_DSM_LED, mux_id, NULL); +} + +static int nouveau_dsm_set_discrete_state(acpi_handle handle, enum vga_switcheroo_state state) +{ + int arg; + if (state == VGA_SWITCHEROO_ON) + arg = NOUVEAU_DSM_POWER_SPEED; + else + arg = NOUVEAU_DSM_POWER_STAMINA; + nouveau_dsm(handle, NOUVEAU_DSM_POWER, arg, NULL); + return 0; +} + +static int nouveau_dsm_switchto(enum vga_switcheroo_client_id id) +{ + if (id == VGA_SWITCHEROO_IGD) + return nouveau_dsm_switch_mux(nouveau_dsm_priv.dsm_handle, NOUVEAU_DSM_LED_STAMINA); + else + return nouveau_dsm_switch_mux(nouveau_dsm_priv.dsm_handle, NOUVEAU_DSM_LED_SPEED); +} +static int nouveau_dsm_power_state(enum vga_switcheroo_client_id id, + enum vga_switcheroo_state state) +{ + if (id == VGA_SWITCHEROO_IGD) + return 0; + + return nouveau_dsm_set_discrete_state(nouveau_dsm_priv.dsm_handle, state); +} + +static int nouveau_dsm_init(void) +{ return 0; } -bool nouveau_dsm_probe(struct drm_device *dev) +static int nouveau_dsm_get_client_id(struct pci_dev *pdev) { - int support = 0; + if (nouveau_dsm_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev)) + return VGA_SWITCHEROO_IGD; + else + return VGA_SWITCHEROO_DIS; +} + +static struct vga_switcheroo_handler nouveau_dsm_handler = { + .switchto = nouveau_dsm_switchto, + .power_state = nouveau_dsm_power_state, + .init = nouveau_dsm_init, + .get_client_id = nouveau_dsm_get_client_id, +}; - if (nouveau_dsm(dev, NOUVEAU_DSM_SUPPORTED, - NOUVEAU_DSM_SUPPORTED_FUNCTIONS, &support)) +static bool nouveau_dsm_pci_probe(struct pci_dev *pdev) +{ + acpi_handle dhandle, nvidia_handle; + acpi_status status; + int ret; + uint32_t result; + + dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + if (!dhandle) + return false; + status = acpi_get_handle(dhandle, "_DSM", &nvidia_handle); + if (ACPI_FAILURE(status)) { return false; + } - if (!support) + ret= nouveau_dsm(nvidia_handle, NOUVEAU_DSM_SUPPORTED, + NOUVEAU_DSM_SUPPORTED_FUNCTIONS, &result); + if (ret < 0) return false; + nouveau_dsm_priv.dhandle = dhandle; + nouveau_dsm_priv.dsm_handle = nvidia_handle; return true; } + +static bool nouveau_dsm_detect(void) +{ + char acpi_method_name[255] = { 0 }; + struct acpi_buffer buffer = {sizeof(acpi_method_name), acpi_method_name}; + struct pci_dev *pdev = NULL; + int has_dsm = 0; + int vga_count = 0; + while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) { + vga_count++; + + has_dsm |= (nouveau_dsm_pci_probe(pdev) == true); + } + + if (vga_count == 2 && has_dsm) { + acpi_get_name(nouveau_dsm_priv.dsm_handle, ACPI_FULL_PATHNAME, &buffer); + printk(KERN_INFO "VGA switcheroo: detected DSM switching method %s handle\n", + acpi_method_name); + nouveau_dsm_priv.dsm_detected = true; + return true; + } + return false; +} + +void nouveau_register_dsm_handler(void) +{ + bool r; + + r = nouveau_dsm_detect(); + if (!r) + return; + + vga_switcheroo_register_handler(&nouveau_dsm_handler); +} + +void nouveau_unregister_dsm_handler(void) +{ + vga_switcheroo_unregister_handler(); +} diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c index da3b93b84502..f83ec65addba 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.c +++ b/drivers/gpu/drm/nouveau/nouveau_drv.c @@ -135,7 +135,7 @@ nouveau_pci_remove(struct pci_dev *pdev) drm_put_dev(dev); } -static int +int nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state) { struct drm_device *dev = pci_get_drvdata(pdev); @@ -233,7 +233,7 @@ out_abort: return ret; } -static int +int nouveau_pci_resume(struct pci_dev *pdev) { struct drm_device *dev = pci_get_drvdata(pdev); @@ -402,8 +402,10 @@ static int __init nouveau_init(void) nouveau_modeset = 1; } - if (nouveau_modeset == 1) + if (nouveau_modeset == 1) { driver.driver_features |= DRIVER_MODESET; + nouveau_register_dsm_handler(); + } return drm_init(&driver); } @@ -411,6 +413,7 @@ static int __init nouveau_init(void) static void __exit nouveau_exit(void) { drm_exit(&driver); + nouveau_unregister_dsm_handler(); } module_init(nouveau_init); diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 1c15ef37b71c..85c05feab4f0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -614,7 +614,6 @@ struct drm_nouveau_private { } susres; struct backlight_device *backlight; - bool acpi_dsm; struct nouveau_channel *evo; @@ -682,6 +681,9 @@ extern int nouveau_ignorelid; extern int nouveau_nofbaccel; extern int nouveau_noaccel; +extern int nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state); +extern int nouveau_pci_resume(struct pci_dev *pdev); + /* nouveau_state.c */ extern void nouveau_preclose(struct drm_device *dev, struct drm_file *); extern int nouveau_load(struct drm_device *, unsigned long flags); @@ -848,19 +850,8 @@ extern int nouveau_dma_init(struct nouveau_channel *); extern int nouveau_dma_wait(struct nouveau_channel *, int size); /* nouveau_acpi.c */ -#ifdef CONFIG_ACPI -extern int nouveau_hybrid_setup(struct drm_device *dev); -extern bool nouveau_dsm_probe(struct drm_device *dev); -#else -static inline int nouveau_hybrid_setup(struct drm_device *dev) -{ - return 0; -} -static inline bool nouveau_dsm_probe(struct drm_device *dev) -{ - return false; -} -#endif +void nouveau_register_dsm_handler(void); +void nouveau_unregister_dsm_handler(void); /* nouveau_backlight.c */ #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index ea879a2efef3..1ebf22b664dd 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -36,6 +36,7 @@ #include <linux/fb.h> #include <linux/init.h> #include <linux/screen_info.h> +#include <linux/vga_switcheroo.h> #include "drmP.h" #include "drm.h" @@ -370,6 +371,7 @@ nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width, nvbo->bo.offset, nvbo); mutex_unlock(&dev->struct_mutex); + vga_switcheroo_client_fb_set(dev->pdev, info); return 0; out_unref: diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index a4851af5b05e..85d65b91389c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -29,6 +29,7 @@ #include "drm_sarea.h" #include "drm_crtc_helper.h" #include <linux/vgaarb.h> +#include <linux/vga_switcheroo.h> #include "nouveau_drv.h" #include "nouveau_drm.h" @@ -371,6 +372,30 @@ out_err: return ret; } +static void nouveau_switcheroo_set_state(struct pci_dev *pdev, + enum vga_switcheroo_state state) +{ + pm_message_t pmm = { .event = PM_EVENT_SUSPEND }; + if (state == VGA_SWITCHEROO_ON) { + printk(KERN_ERR "VGA switcheroo: switched nouveau on\n"); + nouveau_pci_resume(pdev); + } else { + printk(KERN_ERR "VGA switcheroo: switched nouveau off\n"); + nouveau_pci_suspend(pdev, pmm); + } +} + +static bool nouveau_switcheroo_can_switch(struct pci_dev *pdev) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + bool can_switch; + + spin_lock(&dev->count_lock); + can_switch = (dev->open_count == 0); + spin_unlock(&dev->count_lock); + return can_switch; +} + int nouveau_card_init(struct drm_device *dev) { @@ -384,6 +409,8 @@ nouveau_card_init(struct drm_device *dev) return 0; vga_client_register(dev->pdev, dev, NULL, nouveau_vga_set_decode); + vga_switcheroo_register_client(dev->pdev, nouveau_switcheroo_set_state, + nouveau_switcheroo_can_switch); /* Initialise internal driver API hooks */ ret = nouveau_init_engine_ptrs(dev); @@ -617,11 +644,6 @@ int nouveau_load(struct drm_device *dev, unsigned long flags) NV_DEBUG(dev, "vendor: 0x%X device: 0x%X class: 0x%X\n", dev->pci_vendor, dev->pci_device, dev->pdev->class); - dev_priv->acpi_dsm = nouveau_dsm_probe(dev); - - if (dev_priv->acpi_dsm) - nouveau_hybrid_setup(dev); - dev_priv->wq = create_workqueue("nouveau"); if (!dev_priv->wq) return -EINVAL; diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile index 1cc7b937b1ea..8e62fe13e31c 100644 --- a/drivers/gpu/drm/radeon/Makefile +++ b/drivers/gpu/drm/radeon/Makefile @@ -54,7 +54,8 @@ radeon-y += radeon_device.o radeon_kms.o \ radeon_cs.o radeon_bios.o radeon_benchmark.o r100.o r300.o r420.o \ rs400.o rs600.o rs690.o rv515.o r520.o r600.o rv770.o radeon_test.o \ r200.o radeon_legacy_tv.o r600_cs.o r600_blit.o r600_blit_shaders.o \ - r600_blit_kms.o radeon_pm.o atombios_dp.o r600_audio.o r600_hdmi.o + r600_blit_kms.o radeon_pm.o atombios_dp.o r600_audio.o r600_hdmi.o \ + radeon_atpx_handler.o radeon-$(CONFIG_COMPAT) += radeon_ioc32.o diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index c0356bb193e5..a5dfb1557d3e 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -118,6 +118,10 @@ struct radeon_device; /* * BIOS. */ +#define ATRM_BIOS_PAGE 4096 + +bool radeon_atrm_supported(struct pci_dev *pdev); +int radeon_atrm_get_bios_chunk(uint8_t *bios, int offset, int len); bool radeon_get_bios(struct radeon_device *rdev); @@ -838,6 +842,8 @@ struct radeon_device { int audio_bits_per_sample; uint8_t audio_status_bits; uint8_t audio_category_code; + + bool powered_down; }; int radeon_device_init(struct radeon_device *rdev, @@ -1042,6 +1048,8 @@ extern void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enabl extern void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable); extern void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain); extern bool radeon_ttm_bo_is_radeon_bo(struct ttm_buffer_object *bo); +extern int radeon_resume_kms(struct drm_device *dev); +extern int radeon_suspend_kms(struct drm_device *dev, pm_message_t state); /* r100,rv100,rs100,rv200,rs200,r200,rv250,rs300,rv280 */ struct r100_mc_save { diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c new file mode 100644 index 000000000000..0ae52f19071d --- /dev/null +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -0,0 +1,258 @@ +/* + * Copyright (c) 2010 Red Hat Inc. + * Author : Dave Airlie <airlied@redhat.com> + * + * Licensed under GPLv2 + * + * ATPX support for both Intel/ATI + */ + +#include <linux/vga_switcheroo.h> +#include <acpi/acpi.h> +#include <acpi/acpi_bus.h> +#include <linux/pci.h> + +#define ATPX_VERSION 0 +#define ATPX_GPU_PWR 2 +#define ATPX_MUX_SELECT 3 + +#define ATPX_INTEGRATED 0 +#define ATPX_DISCRETE 1 + +#define ATPX_MUX_IGD 0 +#define ATPX_MUX_DISCRETE 1 + +static struct radeon_atpx_priv { + bool atpx_detected; + /* handle for device - and atpx */ + acpi_handle dhandle; + acpi_handle atpx_handle; + acpi_handle atrm_handle; +} radeon_atpx_priv; + +/* retrieve the ROM in 4k blocks */ +static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios, + int offset, int len) +{ + acpi_status status; + union acpi_object atrm_arg_elements[2], *obj; + struct acpi_object_list atrm_arg; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL}; + + atrm_arg.count = 2; + atrm_arg.pointer = &atrm_arg_elements[0]; + + atrm_arg_elements[0].type = ACPI_TYPE_INTEGER; + atrm_arg_elements[0].integer.value = offset; + + atrm_arg_elements[1].type = ACPI_TYPE_INTEGER; + atrm_arg_elements[1].integer.value = len; + + status = acpi_evaluate_object(atrm_handle, NULL, &atrm_arg, &buffer); + if (ACPI_FAILURE(status)) { + printk("failed to evaluate ATRM got %s\n", acpi_format_exception(status)); + return -ENODEV; + } + + obj = (union acpi_object *)buffer.pointer; + memcpy(bios+offset, obj->buffer.pointer, len); + kfree(buffer.pointer); + return len; +} + +bool radeon_atrm_supported(struct pci_dev *pdev) +{ + /* get the discrete ROM only via ATRM */ + if (!radeon_atpx_priv.atpx_detected) + return false; + + if (radeon_atpx_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev)) + return false; + return true; +} + + +int radeon_atrm_get_bios_chunk(uint8_t *bios, int offset, int len) +{ + return radeon_atrm_call(radeon_atpx_priv.atrm_handle, bios, offset, len); +} + +static int radeon_atpx_get_version(acpi_handle handle) +{ + acpi_status status; + union acpi_object atpx_arg_elements[2], *obj; + struct acpi_object_list atpx_arg; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + + atpx_arg.count = 2; + atpx_arg.pointer = &atpx_arg_elements[0]; + + atpx_arg_elements[0].type = ACPI_TYPE_INTEGER; + atpx_arg_elements[0].integer.value = ATPX_VERSION; + + atpx_arg_elements[1].type = ACPI_TYPE_INTEGER; + atpx_arg_elements[1].integer.value = ATPX_VERSION; + + status = acpi_evaluate_object(handle, NULL, &atpx_arg, &buffer); + if (ACPI_FAILURE(status)) { + printk("%s: failed to call ATPX: %s\n", __func__, acpi_format_exception(status)); + return -ENOSYS; + } + obj = (union acpi_object *)buffer.pointer; + if (obj && (obj->type == ACPI_TYPE_BUFFER)) + printk(KERN_INFO "radeon atpx: version is %d\n", *((u8 *)(obj->buffer.pointer) + 2)); + kfree(buffer.pointer); + return 0; +} + +static int radeon_atpx_execute(acpi_handle handle, int cmd_id, u16 value) +{ + acpi_status status; + union acpi_object atpx_arg_elements[2]; + struct acpi_object_list atpx_arg; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + uint8_t buf[4] = {0}; + + if (!handle) + return -EINVAL; + + atpx_arg.count = 2; + atpx_arg.pointer = &atpx_arg_elements[0]; + + atpx_arg_elements[0].type = ACPI_TYPE_INTEGER; + atpx_arg_elements[0].integer.value = cmd_id; + + buf[2] = value & 0xff; + buf[3] = (value >> 8) & 0xff; + + atpx_arg_elements[1].type = ACPI_TYPE_BUFFER; + atpx_arg_elements[1].buffer.length = 4; + atpx_arg_elements[1].buffer.pointer = buf; + + status = acpi_evaluate_object(handle, NULL, &atpx_arg, &buffer); + if (ACPI_FAILURE(status)) { + printk("%s: failed to call ATPX: %s\n", __func__, acpi_format_exception(status)); + return -ENOSYS; + } + kfree(buffer.pointer); + + return 0; +} + +static int radeon_atpx_set_discrete_state(acpi_handle handle, int state) +{ + return radeon_atpx_execute(handle, ATPX_GPU_PWR, state); +} + +static int radeon_atpx_switch_mux(acpi_handle handle, int mux_id) +{ + return radeon_atpx_execute(handle, ATPX_MUX_SELECT, mux_id); +} + + +static int radeon_atpx_switchto(enum vga_switcheroo_client_id id) +{ + if (id == VGA_SWITCHEROO_IGD) + radeon_atpx_switch_mux(radeon_atpx_priv.atpx_handle, 0); + else + radeon_atpx_switch_mux(radeon_atpx_priv.atpx_handle, 1); + return 0; +} + +static int radeon_atpx_power_state(enum vga_switcheroo_client_id id, + enum vga_switcheroo_state state) +{ + /* on w500 ACPI can't change intel gpu state */ + if (id == VGA_SWITCHEROO_IGD) + return 0; + + radeon_atpx_set_discrete_state(radeon_atpx_priv.atpx_handle, state); + return 0; +} + +static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) +{ + acpi_handle dhandle, atpx_handle, atrm_handle; + acpi_status status; + + dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + if (!dhandle) + return false; + + status = acpi_get_handle(dhandle, "ATPX", &atpx_handle); + if (ACPI_FAILURE(status)) + return false; + + status = acpi_get_handle(dhandle, "ATRM", &atrm_handle); + if (ACPI_FAILURE(status)) + return false; + + radeon_atpx_priv.dhandle = dhandle; + radeon_atpx_priv.atpx_handle = atpx_handle; + radeon_atpx_priv.atrm_handle = atrm_handle; + return true; +} + +static int radeon_atpx_init(void) +{ + /* set up the ATPX handle */ + + radeon_atpx_get_version(radeon_atpx_priv.atpx_handle); + return 0; +} + +static int radeon_atpx_get_client_id(struct pci_dev *pdev) +{ + if (radeon_atpx_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev)) + return VGA_SWITCHEROO_IGD; + else + return VGA_SWITCHEROO_DIS; +} + +static struct vga_switcheroo_handler radeon_atpx_handler = { + .switchto = radeon_atpx_switchto, + .power_state = radeon_atpx_power_state, + .init = radeon_atpx_init, + .get_client_id = radeon_atpx_get_client_id, +}; + +static bool radeon_atpx_detect(void) +{ + char acpi_method_name[255] = { 0 }; + struct acpi_buffer buffer = {sizeof(acpi_method_name), acpi_method_name}; + struct pci_dev *pdev = NULL; + bool has_atpx = false; + int vga_count = 0; + + while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) { + vga_count++; + + has_atpx |= (radeon_atpx_pci_probe_handle(pdev) == true); + } + + if (has_atpx && vga_count == 2) { + acpi_get_name(radeon_atpx_priv.atpx_handle, ACPI_FULL_PATHNAME, &buffer); + printk(KERN_INFO "VGA switcheroo: detected switching method %s handle\n", + acpi_method_name); + radeon_atpx_priv.atpx_detected = true; + return true; + } + return false; +} + +void radeon_register_atpx_handler(void) +{ + bool r; + + /* detect if we have any ATPX + 2 VGA in the system */ + r = radeon_atpx_detect(); + if (!r) + return; + + vga_switcheroo_register_handler(&radeon_atpx_handler); +} + +void radeon_unregister_atpx_handler(void) +{ + vga_switcheroo_unregister_handler(); +} diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index 906921740c60..a34b909485b8 100644 --- a/drivers/gpu/drm/radeon/radeon_bios.c +++ b/drivers/gpu/drm/radeon/radeon_bios.c @@ -30,6 +30,7 @@ #include "radeon.h" #include "atom.h" +#include <linux/vga_switcheroo.h> /* * BIOS. */ @@ -62,7 +63,7 @@ static bool igp_read_bios_from_vram(struct radeon_device *rdev) iounmap(bios); return false; } - memcpy(rdev->bios, bios, size); + memcpy_fromio(rdev->bios, bios, size); iounmap(bios); return true; } @@ -93,6 +94,38 @@ static bool radeon_read_bios(struct radeon_device *rdev) return true; } +/* ATRM is used to get the BIOS on the discrete cards in + * dual-gpu systems. + */ +static bool radeon_atrm_get_bios(struct radeon_device *rdev) +{ + int ret; + int size = 64 * 1024; + int i; + + if (!radeon_atrm_supported(rdev->pdev)) + return false; + + rdev->bios = kmalloc(size, GFP_KERNEL); + if (!rdev->bios) { + DRM_ERROR("Unable to allocate bios\n"); + return false; + } + + for (i = 0; i < size / ATRM_BIOS_PAGE; i++) { + ret = radeon_atrm_get_bios_chunk(rdev->bios, + (i * ATRM_BIOS_PAGE), + ATRM_BIOS_PAGE); + if (ret <= 0) + break; + } + + if (i == 0 || rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) { + kfree(rdev->bios); + return false; + } + return true; +} static bool r700_read_disabled_bios(struct radeon_device *rdev) { uint32_t viph_control; @@ -388,16 +421,16 @@ static bool radeon_read_disabled_bios(struct radeon_device *rdev) return legacy_read_disabled_bios(rdev); } + bool radeon_get_bios(struct radeon_device *rdev) { bool r; uint16_t tmp; - if (rdev->flags & RADEON_IS_IGP) { + r = radeon_atrm_get_bios(rdev); + if (r == false) r = igp_read_bios_from_vram(rdev); - if (r == false) - r = radeon_read_bios(rdev); - } else + if (r == false) r = radeon_read_bios(rdev); if (r == false) { r = radeon_read_disabled_bios(rdev); @@ -408,6 +441,7 @@ bool radeon_get_bios(struct radeon_device *rdev) return false; } if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) { + printk("BIOS signature incorrect %x %x\n", rdev->bios[0], rdev->bios[1]); goto free_bios; } diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 768b1509fa03..cb8d9a1dd69c 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -30,6 +30,7 @@ #include <drm/drm_crtc_helper.h> #include <drm/radeon_drm.h> #include <linux/vgaarb.h> +#include <linux/vga_switcheroo.h> #include "radeon_reg.h" #include "radeon.h" #include "radeon_asic.h" @@ -613,6 +614,36 @@ void radeon_check_arguments(struct radeon_device *rdev) } } +static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + struct radeon_device *rdev = dev->dev_private; + pm_message_t pmm = { .event = PM_EVENT_SUSPEND }; + if (state == VGA_SWITCHEROO_ON) { + printk(KERN_INFO "radeon: switched on\n"); + /* don't suspend or resume card normally */ + rdev->powered_down = false; + radeon_resume_kms(dev); + } else { + printk(KERN_INFO "radeon: switched off\n"); + radeon_suspend_kms(dev, pmm); + /* don't suspend or resume card normally */ + rdev->powered_down = true; + } +} + +static bool radeon_switcheroo_can_switch(struct pci_dev *pdev) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + bool can_switch; + + spin_lock(&dev->count_lock); + can_switch = (dev->open_count == 0); + spin_unlock(&dev->count_lock); + return can_switch; +} + + int radeon_device_init(struct radeon_device *rdev, struct drm_device *ddev, struct pci_dev *pdev, @@ -692,6 +723,9 @@ int radeon_device_init(struct radeon_device *rdev, /* this will fail for cards that aren't VGA class devices, just * ignore it */ vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode); + vga_switcheroo_register_client(rdev->pdev, + radeon_switcheroo_set_state, + radeon_switcheroo_can_switch); r = radeon_init(rdev); if (r) @@ -723,6 +757,7 @@ void radeon_device_fini(struct radeon_device *rdev) rdev->shutdown = true; radeon_fini(rdev); destroy_workqueue(rdev->wq); + vga_switcheroo_unregister_client(rdev->pdev); vga_client_register(rdev->pdev, NULL, NULL, NULL); iounmap(rdev->rmmio); rdev->rmmio = NULL; @@ -746,6 +781,8 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state) } rdev = dev->dev_private; + if (rdev->powered_down) + return 0; /* unpin the front buffers */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb); @@ -791,6 +828,9 @@ int radeon_resume_kms(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; + if (rdev->powered_down) + return 0; + acquire_console_sem(); pci_set_power_state(dev->pdev, PCI_D0); pci_restore_state(dev->pdev); diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 8ba3de7994d4..4ab53aa163b2 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -339,6 +339,7 @@ static int __init radeon_init(void) driver = &kms_driver; driver->driver_features |= DRIVER_MODESET; driver->num_ioctls = radeon_max_kms_ioctl; + radeon_register_atpx_handler(); } /* if the vga console setting is enabled still * let modprobe override it */ @@ -348,6 +349,7 @@ static int __init radeon_init(void) static void __exit radeon_exit(void) { drm_exit(driver); + radeon_unregister_atpx_handler(); } module_init(radeon_init); diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h index c57ad606504d..736237195143 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.h +++ b/drivers/gpu/drm/radeon/radeon_drv.h @@ -455,6 +455,9 @@ extern void r600_blit_swap(struct drm_device *dev, int sx, int sy, int dx, int dy, int w, int h, int src_pitch, int dst_pitch, int cpp); +/* atpx handler */ +void radeon_register_atpx_handler(void); +void radeon_unregister_atpx_handler(void); /* Flags for stats.boxes */ #define RADEON_BOX_DMA_IDLE 0x1 diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index d71e346e9ab5..561719223988 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -39,6 +39,8 @@ #include "drm_fb_helper.h" +#include <linux/vga_switcheroo.h> + struct radeon_fb_device { struct drm_fb_helper helper; struct radeon_framebuffer *rfb; @@ -291,6 +293,7 @@ int radeonfb_create(struct drm_device *dev, rfbdev->rdev = rdev; mutex_unlock(&rdev->ddev->struct_mutex); + vga_switcheroo_client_fb_set(rdev->ddev->pdev, info); return 0; out_unref: diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index f23b05606eb5..5db7af6b91f4 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -30,6 +30,8 @@ #include "radeon.h" #include "radeon_drm.h" +#include <linux/vga_switcheroo.h> + int radeon_driver_unload_kms(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; @@ -136,6 +138,7 @@ int radeon_driver_firstopen_kms(struct drm_device *dev) void radeon_driver_lastclose_kms(struct drm_device *dev) { + vga_switcheroo_process_delayed_switch(); } int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) |