--- zzzz-none-000/linux-3.10.107/drivers/gpu/drm/nouveau/nouveau_acpi.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/gpu/drm/nouveau/nouveau_acpi.c 2021-02-04 17:41:59.000000000 +0000 @@ -1,15 +1,10 @@ #include #include #include -#include -#include -#include -#include #include - #include - #include +#include #include "nouveau_drm.h" #include "nouveau_acpi.h" @@ -25,8 +20,27 @@ #define NOUVEAU_DSM_POWER_SPEED 0x01 #define NOUVEAU_DSM_POWER_STAMINA 0x02 -#define NOUVEAU_DSM_OPTIMUS_FN 0x1A -#define NOUVEAU_DSM_OPTIMUS_ARGS 0x03000001 +#define NOUVEAU_DSM_OPTIMUS_CAPS 0x1A +#define NOUVEAU_DSM_OPTIMUS_FLAGS 0x1B + +#define NOUVEAU_DSM_OPTIMUS_POWERDOWN_PS3 (3 << 24) +#define NOUVEAU_DSM_OPTIMUS_NO_POWERDOWN_PS3 (2 << 24) +#define NOUVEAU_DSM_OPTIMUS_FLAGS_CHANGED (1) + +#define NOUVEAU_DSM_OPTIMUS_SET_POWERDOWN (NOUVEAU_DSM_OPTIMUS_POWERDOWN_PS3 | NOUVEAU_DSM_OPTIMUS_FLAGS_CHANGED) + +/* result of the optimus caps function */ +#define OPTIMUS_ENABLED (1 << 0) +#define OPTIMUS_STATUS_MASK (3 << 3) +#define OPTIMUS_STATUS_OFF (0 << 3) +#define OPTIMUS_STATUS_ON_ENABLED (1 << 3) +#define OPTIMUS_STATUS_PWR_STABLE (3 << 3) +#define OPTIMUS_DISPLAY_HOTPLUG (1 << 6) +#define OPTIMUS_CAPS_MASK (7 << 24) +#define OPTIMUS_DYNAMIC_PWR_CAP (1 << 24) + +#define OPTIMUS_AUDIO_CAPS_MASK (3 << 27) +#define OPTIMUS_HDA_CODEC_MASK (2 << 27) /* hda bios control */ static struct nouveau_dsm_priv { bool dsm_detected; @@ -46,6 +60,7 @@ #define NOUVEAU_DSM_HAS_MUX 0x1 #define NOUVEAU_DSM_HAS_OPT 0x2 +#ifdef CONFIG_VGA_SWITCHEROO static const char nouveau_dsm_muid[] = { 0xA0, 0xA0, 0x95, 0x9D, 0x60, 0x00, 0x48, 0x4D, 0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4, @@ -58,124 +73,89 @@ static int nouveau_optimus_dsm(acpi_handle handle, int func, int arg, uint32_t *result) { - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - struct acpi_object_list input; - union acpi_object params[4]; + int i; union acpi_object *obj; - int i, err; char args_buff[4]; + union acpi_object argv4 = { + .buffer.type = ACPI_TYPE_BUFFER, + .buffer.length = 4, + .buffer.pointer = args_buff + }; - input.count = 4; - input.pointer = params; - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = sizeof(nouveau_op_dsm_muid); - params[0].buffer.pointer = (char *)nouveau_op_dsm_muid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = 0x00000100; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = func; - params[3].type = ACPI_TYPE_BUFFER; - params[3].buffer.length = 4; /* ACPI is little endian, AABBCCDD becomes {DD,CC,BB,AA} */ for (i = 0; i < 4; i++) args_buff[i] = (arg >> i * 8) & 0xFF; - params[3].buffer.pointer = args_buff; - err = acpi_evaluate_object(handle, "_DSM", &input, &output); - if (err) { - printk(KERN_INFO "failed to evaluate _DSM: %d\n", err); - return err; - } - - obj = (union acpi_object *)output.pointer; - - if (obj->type == ACPI_TYPE_INTEGER) - if (obj->integer.value == 0x80000002) { - return -ENODEV; - } - - if (obj->type == ACPI_TYPE_BUFFER) { - if (obj->buffer.length == 4 && result) { - *result = 0; + *result = 0; + obj = acpi_evaluate_dsm_typed(handle, nouveau_op_dsm_muid, 0x00000100, + func, &argv4, ACPI_TYPE_BUFFER); + if (!obj) { + acpi_handle_info(handle, "failed to evaluate _DSM\n"); + return AE_ERROR; + } else { + if (obj->buffer.length == 4) { *result |= obj->buffer.pointer[0]; *result |= (obj->buffer.pointer[1] << 8); *result |= (obj->buffer.pointer[2] << 16); *result |= (obj->buffer.pointer[3] << 24); } + ACPI_FREE(obj); } - kfree(output.pointer); return 0; } -static int nouveau_dsm(acpi_handle handle, int func, int arg, uint32_t *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; - - input.count = 4; - input.pointer = params; - params[0].type = ACPI_TYPE_BUFFER; - 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; - params[2].integer.value = func; - params[3].type = ACPI_TYPE_INTEGER; - params[3].integer.value = arg; - - err = acpi_evaluate_object(handle, "_DSM", &input, &output); - if (err) { - printk(KERN_INFO "failed to evaluate _DSM: %d\n", err); - return err; - } - - obj = (union acpi_object *)output.pointer; - - if (obj->type == ACPI_TYPE_INTEGER) - if (obj->integer.value == 0x80000002) - return -ENODEV; - - if (obj->type == ACPI_TYPE_BUFFER) { - if (obj->buffer.length == 4 && result) { - *result = 0; - *result |= obj->buffer.pointer[0]; - *result |= (obj->buffer.pointer[1] << 8); - *result |= (obj->buffer.pointer[2] << 16); - *result |= (obj->buffer.pointer[3] << 24); - } - } +/* + * On some platforms, _DSM(nouveau_op_dsm_muid, func0) has special + * requirements on the fourth parameter, so a private implementation + * instead of using acpi_check_dsm(). + */ +static int nouveau_check_optimus_dsm(acpi_handle handle) +{ + int result; + + /* + * Function 0 returns a Buffer containing available functions. + * The args parameter is ignored for function 0, so just put 0 in it + */ + if (nouveau_optimus_dsm(handle, 0, 0, &result)) + return 0; - kfree(output.pointer); - return 0; + /* + * ACPI Spec v4 9.14.1: if bit 0 is zero, no function is supported. + * If the n-th bit is enabled, function n is supported + */ + return result & 1 && result & (1 << NOUVEAU_DSM_OPTIMUS_CAPS); } -/* Returns 1 if a DSM function is usable and 0 otherwise */ -static int nouveau_test_dsm(acpi_handle test_handle, - int (*dsm_func)(acpi_handle, int, int, uint32_t *), - int sfnc) +static int nouveau_dsm(acpi_handle handle, int func, int arg) { - u32 result = 0; - - /* Function 0 returns a Buffer containing available functions. The args - * parameter is ignored for function 0, so just put 0 in it */ - if (dsm_func(test_handle, 0, 0, &result)) - return 0; + int ret = 0; + union acpi_object *obj; + union acpi_object argv4 = { + .integer.type = ACPI_TYPE_INTEGER, + .integer.value = arg, + }; + + obj = acpi_evaluate_dsm_typed(handle, nouveau_dsm_muid, 0x00000102, + func, &argv4, ACPI_TYPE_INTEGER); + if (!obj) { + acpi_handle_info(handle, "failed to evaluate _DSM\n"); + return AE_ERROR; + } else { + if (obj->integer.value == 0x80000002) + ret = -ENODEV; + ACPI_FREE(obj); + } - /* ACPI Spec v4 9.14.1: if bit 0 is zero, no function is supported. If - * the n-th bit is enabled, function n is supported */ - return result & 1 && result & (1 << sfnc); + return ret; } static int nouveau_dsm_switch_mux(acpi_handle handle, int mux_id) { mxm_wmi_call_mxmx(mux_id == NOUVEAU_DSM_LED_STAMINA ? MXM_MXDS_ADAPTER_IGD : MXM_MXDS_ADAPTER_0); mxm_wmi_call_mxds(mux_id == NOUVEAU_DSM_LED_STAMINA ? MXM_MXDS_ADAPTER_IGD : MXM_MXDS_ADAPTER_0); - return nouveau_dsm(handle, NOUVEAU_DSM_LED, mux_id, NULL); + return nouveau_dsm(handle, NOUVEAU_DSM_LED, mux_id); } static int nouveau_dsm_set_discrete_state(acpi_handle handle, enum vga_switcheroo_state state) @@ -185,7 +165,7 @@ arg = NOUVEAU_DSM_POWER_SPEED; else arg = NOUVEAU_DSM_POWER_STAMINA; - nouveau_dsm(handle, NOUVEAU_DSM_POWER, arg, NULL); + nouveau_dsm(handle, NOUVEAU_DSM_POWER, arg); return 0; } @@ -226,7 +206,7 @@ return VGA_SWITCHEROO_DIS; } -static struct vga_switcheroo_handler nouveau_dsm_handler = { +static const struct vga_switcheroo_handler nouveau_dsm_handler = { .switchto = nouveau_dsm_switchto, .power_state = nouveau_dsm_power_state, .get_client_id = nouveau_dsm_get_client_id, @@ -234,26 +214,32 @@ static int nouveau_dsm_pci_probe(struct pci_dev *pdev) { - acpi_handle dhandle, nvidia_handle; - acpi_status status; + acpi_handle dhandle; int retval = 0; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; - status = acpi_get_handle(dhandle, "_DSM", &nvidia_handle); - if (ACPI_FAILURE(status)) { + if (!acpi_has_method(dhandle, "_DSM")) return false; - } - if (nouveau_test_dsm(dhandle, nouveau_dsm, NOUVEAU_DSM_POWER)) + if (acpi_check_dsm(dhandle, nouveau_dsm_muid, 0x00000102, + 1 << NOUVEAU_DSM_POWER)) retval |= NOUVEAU_DSM_HAS_MUX; - if (nouveau_test_dsm(dhandle, nouveau_optimus_dsm, - NOUVEAU_DSM_OPTIMUS_FN)) + if (nouveau_check_optimus_dsm(dhandle)) retval |= NOUVEAU_DSM_HAS_OPT; + if (retval & NOUVEAU_DSM_HAS_OPT) { + uint32_t result; + nouveau_optimus_dsm(dhandle, NOUVEAU_DSM_OPTIMUS_CAPS, 0, + &result); + dev_info(&pdev->dev, "optimus capabilities: %s, status %s%s\n", + (result & OPTIMUS_ENABLED) ? "enabled" : "disabled", + (result & OPTIMUS_DYNAMIC_PWR_CAP) ? "dynamic power, " : "", + (result & OPTIMUS_HDA_CODEC_MASK) ? "hda bios codec supported" : ""); + } if (retval) nouveau_dsm_priv.dhandle = dhandle; @@ -289,6 +275,16 @@ has_optimus = 1; } + while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_3D << 8, pdev)) != NULL) { + vga_count++; + + retval = nouveau_dsm_pci_probe(pdev); + if (retval & NOUVEAU_DSM_HAS_MUX) + has_dsm |= 1; + if (retval & NOUVEAU_DSM_HAS_OPT) + has_optimus = 1; + } + /* find the optimus DSM or the old v1 DSM */ if (has_optimus == 1) { acpi_get_name(nouveau_dsm_priv.dhandle, ACPI_FULL_PATHNAME, @@ -328,8 +324,12 @@ if (!nouveau_dsm_priv.optimus_detected) return; - nouveau_optimus_dsm(nouveau_dsm_priv.dhandle, NOUVEAU_DSM_OPTIMUS_FN, - NOUVEAU_DSM_OPTIMUS_ARGS, &result); + nouveau_optimus_dsm(nouveau_dsm_priv.dhandle, NOUVEAU_DSM_OPTIMUS_FLAGS, + 0x3, &result); + + nouveau_optimus_dsm(nouveau_dsm_priv.dhandle, NOUVEAU_DSM_OPTIMUS_CAPS, + NOUVEAU_DSM_OPTIMUS_SET_POWERDOWN, &result); + } void nouveau_unregister_dsm_handler(void) @@ -337,6 +337,11 @@ if (nouveau_dsm_priv.optimus_detected || nouveau_dsm_priv.dsm_detected) vga_switcheroo_unregister_handler(); } +#else +void nouveau_register_dsm_handler(void) {} +void nouveau_unregister_dsm_handler(void) {} +void nouveau_switcheroo_optimus_dsm(void) {} +#endif /* retrieve the ROM in 4k blocks */ static int nouveau_rom_call(acpi_handle rom_handle, uint8_t *bios, @@ -362,17 +367,18 @@ return -ENODEV; } obj = (union acpi_object *)buffer.pointer; + len = min(len, (int)obj->buffer.length); memcpy(bios+offset, obj->buffer.pointer, len); kfree(buffer.pointer); return len; } -bool nouveau_acpi_rom_supported(struct pci_dev *pdev) +bool nouveau_acpi_rom_supported(struct device *dev) { acpi_status status; acpi_handle dhandle, rom_handle; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(dev); if (!dhandle) return false; @@ -406,7 +412,7 @@ return NULL; } - handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev); + handle = ACPI_HANDLE(&dev->pdev->dev); if (!handle) return NULL;