| /* | 
 |  * Copyright 2008 Advanced Micro Devices, Inc. | 
 |  * Copyright 2008 Red Hat Inc. | 
 |  * Copyright 2009 Jerome Glisse. | 
 |  * | 
 |  * 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: Dave Airlie | 
 |  *          Alex Deucher | 
 |  *          Jerome Glisse | 
 |  */ | 
 | #include <drm/drmP.h> | 
 | #include <drm/drm_fb_helper.h> | 
 | #include "radeon.h" | 
 | #include <drm/radeon_drm.h> | 
 | #include "radeon_asic.h" | 
 |  | 
 | #include <linux/vga_switcheroo.h> | 
 | #include <linux/slab.h> | 
 | #include <linux/pm_runtime.h> | 
 |  | 
 | #if defined(CONFIG_VGA_SWITCHEROO) | 
 | bool radeon_has_atpx(void); | 
 | #else | 
 | static inline bool radeon_has_atpx(void) { return false; } | 
 | #endif | 
 |  | 
 | /** | 
 |  * radeon_driver_unload_kms - Main unload function for KMS. | 
 |  * | 
 |  * @dev: drm dev pointer | 
 |  * | 
 |  * This is the main unload function for KMS (all asics). | 
 |  * It calls radeon_modeset_fini() to tear down the | 
 |  * displays, and radeon_device_fini() to tear down | 
 |  * the rest of the device (CP, writeback, etc.). | 
 |  * Returns 0 on success. | 
 |  */ | 
 | void radeon_driver_unload_kms(struct drm_device *dev) | 
 | { | 
 | 	struct radeon_device *rdev = dev->dev_private; | 
 |  | 
 | 	if (rdev == NULL) | 
 | 		return; | 
 |  | 
 | 	if (rdev->rmmio == NULL) | 
 | 		goto done_free; | 
 |  | 
 | 	if (radeon_is_px(dev)) { | 
 | 		pm_runtime_get_sync(dev->dev); | 
 | 		pm_runtime_forbid(dev->dev); | 
 | 	} | 
 |  | 
 | 	radeon_acpi_fini(rdev); | 
 | 	 | 
 | 	radeon_modeset_fini(rdev); | 
 | 	radeon_device_fini(rdev); | 
 |  | 
 | done_free: | 
 | 	kfree(rdev); | 
 | 	dev->dev_private = NULL; | 
 | } | 
 |  | 
 | /** | 
 |  * radeon_driver_load_kms - Main load function for KMS. | 
 |  * | 
 |  * @dev: drm dev pointer | 
 |  * @flags: device flags | 
 |  * | 
 |  * This is the main load function for KMS (all asics). | 
 |  * It calls radeon_device_init() to set up the non-display | 
 |  * parts of the chip (asic init, CP, writeback, etc.), and | 
 |  * radeon_modeset_init() to set up the display parts | 
 |  * (crtcs, encoders, hotplug detect, etc.). | 
 |  * Returns 0 on success, error on failure. | 
 |  */ | 
 | int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags) | 
 | { | 
 | 	struct radeon_device *rdev; | 
 | 	int r, acpi_status; | 
 |  | 
 | 	if (!radeon_si_support) { | 
 | 		switch (flags & RADEON_FAMILY_MASK) { | 
 | 		case CHIP_TAHITI: | 
 | 		case CHIP_PITCAIRN: | 
 | 		case CHIP_VERDE: | 
 | 		case CHIP_OLAND: | 
 | 		case CHIP_HAINAN: | 
 | 			dev_info(dev->dev, | 
 | 				 "SI support disabled by module param\n"); | 
 | 			return -ENODEV; | 
 | 		} | 
 | 	} | 
 | 	if (!radeon_cik_support) { | 
 | 		switch (flags & RADEON_FAMILY_MASK) { | 
 | 		case CHIP_KAVERI: | 
 | 		case CHIP_BONAIRE: | 
 | 		case CHIP_HAWAII: | 
 | 		case CHIP_KABINI: | 
 | 		case CHIP_MULLINS: | 
 | 			dev_info(dev->dev, | 
 | 				 "CIK support disabled by module param\n"); | 
 | 			return -ENODEV; | 
 | 		} | 
 | 	} | 
 |  | 
 | 	rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL); | 
 | 	if (rdev == NULL) { | 
 | 		return -ENOMEM; | 
 | 	} | 
 | 	dev->dev_private = (void *)rdev; | 
 |  | 
 | 	/* update BUS flag */ | 
 | 	if (pci_find_capability(dev->pdev, PCI_CAP_ID_AGP)) { | 
 | 		flags |= RADEON_IS_AGP; | 
 | 	} else if (pci_is_pcie(dev->pdev)) { | 
 | 		flags |= RADEON_IS_PCIE; | 
 | 	} else { | 
 | 		flags |= RADEON_IS_PCI; | 
 | 	} | 
 |  | 
 | 	if ((radeon_runtime_pm != 0) && | 
 | 	    radeon_has_atpx() && | 
 | 	    ((flags & RADEON_IS_IGP) == 0) && | 
 | 	    !pci_is_thunderbolt_attached(dev->pdev)) | 
 | 		flags |= RADEON_IS_PX; | 
 |  | 
 | 	/* radeon_device_init should report only fatal error | 
 | 	 * like memory allocation failure or iomapping failure, | 
 | 	 * or memory manager initialization failure, it must | 
 | 	 * properly initialize the GPU MC controller and permit | 
 | 	 * VRAM allocation | 
 | 	 */ | 
 | 	r = radeon_device_init(rdev, dev, dev->pdev, flags); | 
 | 	if (r) { | 
 | 		dev_err(&dev->pdev->dev, "Fatal error during GPU init\n"); | 
 | 		goto out; | 
 | 	} | 
 |  | 
 | 	/* Again modeset_init should fail only on fatal error | 
 | 	 * otherwise it should provide enough functionalities | 
 | 	 * for shadowfb to run | 
 | 	 */ | 
 | 	r = radeon_modeset_init(rdev); | 
 | 	if (r) | 
 | 		dev_err(&dev->pdev->dev, "Fatal error during modeset init\n"); | 
 |  | 
 | 	/* Call ACPI methods: require modeset init | 
 | 	 * but failure is not fatal | 
 | 	 */ | 
 | 	if (!r) { | 
 | 		acpi_status = radeon_acpi_init(rdev); | 
 | 		if (acpi_status) | 
 | 		dev_dbg(&dev->pdev->dev, | 
 | 				"Error during ACPI methods call\n"); | 
 | 	} | 
 |  | 
 | 	if (radeon_is_px(dev)) { | 
 | 		dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP); | 
 | 		pm_runtime_use_autosuspend(dev->dev); | 
 | 		pm_runtime_set_autosuspend_delay(dev->dev, 5000); | 
 | 		pm_runtime_set_active(dev->dev); | 
 | 		pm_runtime_allow(dev->dev); | 
 | 		pm_runtime_mark_last_busy(dev->dev); | 
 | 		pm_runtime_put_autosuspend(dev->dev); | 
 | 	} | 
 |  | 
 | out: | 
 | 	if (r) | 
 | 		radeon_driver_unload_kms(dev); | 
 |  | 
 |  | 
 | 	return r; | 
 | } | 
 |  | 
 | /** | 
 |  * radeon_set_filp_rights - Set filp right. | 
 |  * | 
 |  * @dev: drm dev pointer | 
 |  * @owner: drm file | 
 |  * @applier: drm file | 
 |  * @value: value | 
 |  * | 
 |  * Sets the filp rights for the device (all asics). | 
 |  */ | 
 | static void radeon_set_filp_rights(struct drm_device *dev, | 
 | 				   struct drm_file **owner, | 
 | 				   struct drm_file *applier, | 
 | 				   uint32_t *value) | 
 | { | 
 | 	struct radeon_device *rdev = dev->dev_private; | 
 |  | 
 | 	mutex_lock(&rdev->gem.mutex); | 
 | 	if (*value == 1) { | 
 | 		/* wants rights */ | 
 | 		if (!*owner) | 
 | 			*owner = applier; | 
 | 	} else if (*value == 0) { | 
 | 		/* revokes rights */ | 
 | 		if (*owner == applier) | 
 | 			*owner = NULL; | 
 | 	} | 
 | 	*value = *owner == applier ? 1 : 0; | 
 | 	mutex_unlock(&rdev->gem.mutex); | 
 | } | 
 |  | 
 | /* | 
 |  * Userspace get information ioctl | 
 |  */ | 
 | /** | 
 |  * radeon_info_ioctl - answer a device specific request. | 
 |  * | 
 |  * @rdev: radeon device pointer | 
 |  * @data: request object | 
 |  * @filp: drm filp | 
 |  * | 
 |  * This function is used to pass device specific parameters to the userspace | 
 |  * drivers.  Examples include: pci device id, pipeline parms, tiling params, | 
 |  * etc. (all asics). | 
 |  * Returns 0 on success, -EINVAL on failure. | 
 |  */ | 
 | static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) | 
 | { | 
 | 	struct radeon_device *rdev = dev->dev_private; | 
 | 	struct drm_radeon_info *info = data; | 
 | 	struct radeon_mode_info *minfo = &rdev->mode_info; | 
 | 	uint32_t *value, value_tmp, *value_ptr, value_size; | 
 | 	uint64_t value64; | 
 | 	struct drm_crtc *crtc; | 
 | 	int i, found; | 
 |  | 
 | 	value_ptr = (uint32_t *)((unsigned long)info->value); | 
 | 	value = &value_tmp; | 
 | 	value_size = sizeof(uint32_t); | 
 |  | 
 | 	switch (info->request) { | 
 | 	case RADEON_INFO_DEVICE_ID: | 
 | 		*value = dev->pdev->device; | 
 | 		break; | 
 | 	case RADEON_INFO_NUM_GB_PIPES: | 
 | 		*value = rdev->num_gb_pipes; | 
 | 		break; | 
 | 	case RADEON_INFO_NUM_Z_PIPES: | 
 | 		*value = rdev->num_z_pipes; | 
 | 		break; | 
 | 	case RADEON_INFO_ACCEL_WORKING: | 
 | 		/* xf86-video-ati 6.13.0 relies on this being false for evergreen */ | 
 | 		if ((rdev->family >= CHIP_CEDAR) && (rdev->family <= CHIP_HEMLOCK)) | 
 | 			*value = false; | 
 | 		else | 
 | 			*value = rdev->accel_working; | 
 | 		break; | 
 | 	case RADEON_INFO_CRTC_FROM_ID: | 
 | 		if (copy_from_user(value, value_ptr, sizeof(uint32_t))) { | 
 | 			DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__); | 
 | 			return -EFAULT; | 
 | 		} | 
 | 		for (i = 0, found = 0; i < rdev->num_crtc; i++) { | 
 | 			crtc = (struct drm_crtc *)minfo->crtcs[i]; | 
 | 			if (crtc && crtc->base.id == *value) { | 
 | 				struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); | 
 | 				*value = radeon_crtc->crtc_id; | 
 | 				found = 1; | 
 | 				break; | 
 | 			} | 
 | 		} | 
 | 		if (!found) { | 
 | 			DRM_DEBUG_KMS("unknown crtc id %d\n", *value); | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_ACCEL_WORKING2: | 
 | 		if (rdev->family == CHIP_HAWAII) { | 
 | 			if (rdev->accel_working) { | 
 | 				if (rdev->new_fw) | 
 | 					*value = 3; | 
 | 				else | 
 | 					*value = 2; | 
 | 			} else { | 
 | 				*value = 0; | 
 | 			} | 
 | 		} else { | 
 | 			*value = rdev->accel_working; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_TILING_CONFIG: | 
 | 		if (rdev->family >= CHIP_BONAIRE) | 
 | 			*value = rdev->config.cik.tile_config; | 
 | 		else if (rdev->family >= CHIP_TAHITI) | 
 | 			*value = rdev->config.si.tile_config; | 
 | 		else if (rdev->family >= CHIP_CAYMAN) | 
 | 			*value = rdev->config.cayman.tile_config; | 
 | 		else if (rdev->family >= CHIP_CEDAR) | 
 | 			*value = rdev->config.evergreen.tile_config; | 
 | 		else if (rdev->family >= CHIP_RV770) | 
 | 			*value = rdev->config.rv770.tile_config; | 
 | 		else if (rdev->family >= CHIP_R600) | 
 | 			*value = rdev->config.r600.tile_config; | 
 | 		else { | 
 | 			DRM_DEBUG_KMS("tiling config is r6xx+ only!\n"); | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_WANT_HYPERZ: | 
 | 		/* The "value" here is both an input and output parameter. | 
 | 		 * If the input value is 1, filp requests hyper-z access. | 
 | 		 * If the input value is 0, filp revokes its hyper-z access. | 
 | 		 * | 
 | 		 * When returning, the value is 1 if filp owns hyper-z access, | 
 | 		 * 0 otherwise. */ | 
 | 		if (copy_from_user(value, value_ptr, sizeof(uint32_t))) { | 
 | 			DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__); | 
 | 			return -EFAULT; | 
 | 		} | 
 | 		if (*value >= 2) { | 
 | 			DRM_DEBUG_KMS("WANT_HYPERZ: invalid value %d\n", *value); | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		radeon_set_filp_rights(dev, &rdev->hyperz_filp, filp, value); | 
 | 		break; | 
 | 	case RADEON_INFO_WANT_CMASK: | 
 | 		/* The same logic as Hyper-Z. */ | 
 | 		if (copy_from_user(value, value_ptr, sizeof(uint32_t))) { | 
 | 			DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__); | 
 | 			return -EFAULT; | 
 | 		} | 
 | 		if (*value >= 2) { | 
 | 			DRM_DEBUG_KMS("WANT_CMASK: invalid value %d\n", *value); | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		radeon_set_filp_rights(dev, &rdev->cmask_filp, filp, value); | 
 | 		break; | 
 | 	case RADEON_INFO_CLOCK_CRYSTAL_FREQ: | 
 | 		/* return clock value in KHz */ | 
 | 		if (rdev->asic->get_xclk) | 
 | 			*value = radeon_get_xclk(rdev) * 10; | 
 | 		else | 
 | 			*value = rdev->clock.spll.reference_freq * 10; | 
 | 		break; | 
 | 	case RADEON_INFO_NUM_BACKENDS: | 
 | 		if (rdev->family >= CHIP_BONAIRE) | 
 | 			*value = rdev->config.cik.max_backends_per_se * | 
 | 				rdev->config.cik.max_shader_engines; | 
 | 		else if (rdev->family >= CHIP_TAHITI) | 
 | 			*value = rdev->config.si.max_backends_per_se * | 
 | 				rdev->config.si.max_shader_engines; | 
 | 		else if (rdev->family >= CHIP_CAYMAN) | 
 | 			*value = rdev->config.cayman.max_backends_per_se * | 
 | 				rdev->config.cayman.max_shader_engines; | 
 | 		else if (rdev->family >= CHIP_CEDAR) | 
 | 			*value = rdev->config.evergreen.max_backends; | 
 | 		else if (rdev->family >= CHIP_RV770) | 
 | 			*value = rdev->config.rv770.max_backends; | 
 | 		else if (rdev->family >= CHIP_R600) | 
 | 			*value = rdev->config.r600.max_backends; | 
 | 		else { | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_NUM_TILE_PIPES: | 
 | 		if (rdev->family >= CHIP_BONAIRE) | 
 | 			*value = rdev->config.cik.max_tile_pipes; | 
 | 		else if (rdev->family >= CHIP_TAHITI) | 
 | 			*value = rdev->config.si.max_tile_pipes; | 
 | 		else if (rdev->family >= CHIP_CAYMAN) | 
 | 			*value = rdev->config.cayman.max_tile_pipes; | 
 | 		else if (rdev->family >= CHIP_CEDAR) | 
 | 			*value = rdev->config.evergreen.max_tile_pipes; | 
 | 		else if (rdev->family >= CHIP_RV770) | 
 | 			*value = rdev->config.rv770.max_tile_pipes; | 
 | 		else if (rdev->family >= CHIP_R600) | 
 | 			*value = rdev->config.r600.max_tile_pipes; | 
 | 		else { | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_FUSION_GART_WORKING: | 
 | 		*value = 1; | 
 | 		break; | 
 | 	case RADEON_INFO_BACKEND_MAP: | 
 | 		if (rdev->family >= CHIP_BONAIRE) | 
 | 			*value = rdev->config.cik.backend_map; | 
 | 		else if (rdev->family >= CHIP_TAHITI) | 
 | 			*value = rdev->config.si.backend_map; | 
 | 		else if (rdev->family >= CHIP_CAYMAN) | 
 | 			*value = rdev->config.cayman.backend_map; | 
 | 		else if (rdev->family >= CHIP_CEDAR) | 
 | 			*value = rdev->config.evergreen.backend_map; | 
 | 		else if (rdev->family >= CHIP_RV770) | 
 | 			*value = rdev->config.rv770.backend_map; | 
 | 		else if (rdev->family >= CHIP_R600) | 
 | 			*value = rdev->config.r600.backend_map; | 
 | 		else { | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_VA_START: | 
 | 		/* this is where we report if vm is supported or not */ | 
 | 		if (rdev->family < CHIP_CAYMAN) | 
 | 			return -EINVAL; | 
 | 		*value = RADEON_VA_RESERVED_SIZE; | 
 | 		break; | 
 | 	case RADEON_INFO_IB_VM_MAX_SIZE: | 
 | 		/* this is where we report if vm is supported or not */ | 
 | 		if (rdev->family < CHIP_CAYMAN) | 
 | 			return -EINVAL; | 
 | 		*value = RADEON_IB_VM_MAX_SIZE; | 
 | 		break; | 
 | 	case RADEON_INFO_MAX_PIPES: | 
 | 		if (rdev->family >= CHIP_BONAIRE) | 
 | 			*value = rdev->config.cik.max_cu_per_sh; | 
 | 		else if (rdev->family >= CHIP_TAHITI) | 
 | 			*value = rdev->config.si.max_cu_per_sh; | 
 | 		else if (rdev->family >= CHIP_CAYMAN) | 
 | 			*value = rdev->config.cayman.max_pipes_per_simd; | 
 | 		else if (rdev->family >= CHIP_CEDAR) | 
 | 			*value = rdev->config.evergreen.max_pipes; | 
 | 		else if (rdev->family >= CHIP_RV770) | 
 | 			*value = rdev->config.rv770.max_pipes; | 
 | 		else if (rdev->family >= CHIP_R600) | 
 | 			*value = rdev->config.r600.max_pipes; | 
 | 		else { | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_TIMESTAMP: | 
 | 		if (rdev->family < CHIP_R600) { | 
 | 			DRM_DEBUG_KMS("timestamp is r6xx+ only!\n"); | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		value = (uint32_t*)&value64; | 
 | 		value_size = sizeof(uint64_t); | 
 | 		value64 = radeon_get_gpu_clock_counter(rdev); | 
 | 		break; | 
 | 	case RADEON_INFO_MAX_SE: | 
 | 		if (rdev->family >= CHIP_BONAIRE) | 
 | 			*value = rdev->config.cik.max_shader_engines; | 
 | 		else if (rdev->family >= CHIP_TAHITI) | 
 | 			*value = rdev->config.si.max_shader_engines; | 
 | 		else if (rdev->family >= CHIP_CAYMAN) | 
 | 			*value = rdev->config.cayman.max_shader_engines; | 
 | 		else if (rdev->family >= CHIP_CEDAR) | 
 | 			*value = rdev->config.evergreen.num_ses; | 
 | 		else | 
 | 			*value = 1; | 
 | 		break; | 
 | 	case RADEON_INFO_MAX_SH_PER_SE: | 
 | 		if (rdev->family >= CHIP_BONAIRE) | 
 | 			*value = rdev->config.cik.max_sh_per_se; | 
 | 		else if (rdev->family >= CHIP_TAHITI) | 
 | 			*value = rdev->config.si.max_sh_per_se; | 
 | 		else | 
 | 			return -EINVAL; | 
 | 		break; | 
 | 	case RADEON_INFO_FASTFB_WORKING: | 
 | 		*value = rdev->fastfb_working; | 
 | 		break; | 
 | 	case RADEON_INFO_RING_WORKING: | 
 | 		if (copy_from_user(value, value_ptr, sizeof(uint32_t))) { | 
 | 			DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__); | 
 | 			return -EFAULT; | 
 | 		} | 
 | 		switch (*value) { | 
 | 		case RADEON_CS_RING_GFX: | 
 | 		case RADEON_CS_RING_COMPUTE: | 
 | 			*value = rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready; | 
 | 			break; | 
 | 		case RADEON_CS_RING_DMA: | 
 | 			*value = rdev->ring[R600_RING_TYPE_DMA_INDEX].ready; | 
 | 			*value |= rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready; | 
 | 			break; | 
 | 		case RADEON_CS_RING_UVD: | 
 | 			*value = rdev->ring[R600_RING_TYPE_UVD_INDEX].ready; | 
 | 			break; | 
 | 		case RADEON_CS_RING_VCE: | 
 | 			*value = rdev->ring[TN_RING_TYPE_VCE1_INDEX].ready; | 
 | 			break; | 
 | 		default: | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_SI_TILE_MODE_ARRAY: | 
 | 		if (rdev->family >= CHIP_BONAIRE) { | 
 | 			value = rdev->config.cik.tile_mode_array; | 
 | 			value_size = sizeof(uint32_t)*32; | 
 | 		} else if (rdev->family >= CHIP_TAHITI) { | 
 | 			value = rdev->config.si.tile_mode_array; | 
 | 			value_size = sizeof(uint32_t)*32; | 
 | 		} else { | 
 | 			DRM_DEBUG_KMS("tile mode array is si+ only!\n"); | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_CIK_MACROTILE_MODE_ARRAY: | 
 | 		if (rdev->family >= CHIP_BONAIRE) { | 
 | 			value = rdev->config.cik.macrotile_mode_array; | 
 | 			value_size = sizeof(uint32_t)*16; | 
 | 		} else { | 
 | 			DRM_DEBUG_KMS("macrotile mode array is cik+ only!\n"); | 
 | 			return -EINVAL; | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_SI_CP_DMA_COMPUTE: | 
 | 		*value = 1; | 
 | 		break; | 
 | 	case RADEON_INFO_SI_BACKEND_ENABLED_MASK: | 
 | 		if (rdev->family >= CHIP_BONAIRE) { | 
 | 			*value = rdev->config.cik.backend_enable_mask; | 
 | 		} else if (rdev->family >= CHIP_TAHITI) { | 
 | 			*value = rdev->config.si.backend_enable_mask; | 
 | 		} else { | 
 | 			DRM_DEBUG_KMS("BACKEND_ENABLED_MASK is si+ only!\n"); | 
 | 		} | 
 | 		break; | 
 | 	case RADEON_INFO_MAX_SCLK: | 
 | 		if ((rdev->pm.pm_method == PM_METHOD_DPM) && | 
 | 		    rdev->pm.dpm_enabled) | 
 | 			*value = rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk * 10; | 
 | 		else | 
 | 			*value = rdev->pm.default_sclk * 10; | 
 | 		break; | 
 | 	case RADEON_INFO_VCE_FW_VERSION: | 
 | 		*value = rdev->vce.fw_version; | 
 | 		break; | 
 | 	case RADEON_INFO_VCE_FB_VERSION: | 
 | 		*value = rdev->vce.fb_version; | 
 | 		break; | 
 | 	case RADEON_INFO_NUM_BYTES_MOVED: | 
 | 		value = (uint32_t*)&value64; | 
 | 		value_size = sizeof(uint64_t); | 
 | 		value64 = atomic64_read(&rdev->num_bytes_moved); | 
 | 		break; | 
 | 	case RADEON_INFO_VRAM_USAGE: | 
 | 		value = (uint32_t*)&value64; | 
 | 		value_size = sizeof(uint64_t); | 
 | 		value64 = atomic64_read(&rdev->vram_usage); | 
 | 		break; | 
 | 	case RADEON_INFO_GTT_USAGE: | 
 | 		value = (uint32_t*)&value64; | 
 | 		value_size = sizeof(uint64_t); | 
 | 		value64 = atomic64_read(&rdev->gtt_usage); | 
 | 		break; | 
 | 	case RADEON_INFO_ACTIVE_CU_COUNT: | 
 | 		if (rdev->family >= CHIP_BONAIRE) | 
 | 			*value = rdev->config.cik.active_cus; | 
 | 		else if (rdev->family >= CHIP_TAHITI) | 
 | 			*value = rdev->config.si.active_cus; | 
 | 		else if (rdev->family >= CHIP_CAYMAN) | 
 | 			*value = rdev->config.cayman.active_simds; | 
 | 		else if (rdev->family >= CHIP_CEDAR) | 
 | 			*value = rdev->config.evergreen.active_simds; | 
 | 		else if (rdev->family >= CHIP_RV770) | 
 | 			*value = rdev->config.rv770.active_simds; | 
 | 		else if (rdev->family >= CHIP_R600) | 
 | 			*value = rdev->config.r600.active_simds; | 
 | 		else | 
 | 			*value = 1; | 
 | 		break; | 
 | 	case RADEON_INFO_CURRENT_GPU_TEMP: | 
 | 		/* get temperature in millidegrees C */ | 
 | 		if (rdev->asic->pm.get_temperature) | 
 | 			*value = radeon_get_temperature(rdev); | 
 | 		else | 
 | 			*value = 0; | 
 | 		break; | 
 | 	case RADEON_INFO_CURRENT_GPU_SCLK: | 
 | 		/* get sclk in Mhz */ | 
 | 		if (rdev->pm.dpm_enabled) | 
 | 			*value = radeon_dpm_get_current_sclk(rdev) / 100; | 
 | 		else | 
 | 			*value = rdev->pm.current_sclk / 100; | 
 | 		break; | 
 | 	case RADEON_INFO_CURRENT_GPU_MCLK: | 
 | 		/* get mclk in Mhz */ | 
 | 		if (rdev->pm.dpm_enabled) | 
 | 			*value = radeon_dpm_get_current_mclk(rdev) / 100; | 
 | 		else | 
 | 			*value = rdev->pm.current_mclk / 100; | 
 | 		break; | 
 | 	case RADEON_INFO_READ_REG: | 
 | 		if (copy_from_user(value, value_ptr, sizeof(uint32_t))) { | 
 | 			DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__); | 
 | 			return -EFAULT; | 
 | 		} | 
 | 		if (radeon_get_allowed_info_register(rdev, *value, value)) | 
 | 			return -EINVAL; | 
 | 		break; | 
 | 	case RADEON_INFO_VA_UNMAP_WORKING: | 
 | 		*value = true; | 
 | 		break; | 
 | 	case RADEON_INFO_GPU_RESET_COUNTER: | 
 | 		*value = atomic_read(&rdev->gpu_reset_counter); | 
 | 		break; | 
 | 	default: | 
 | 		DRM_DEBUG_KMS("Invalid request %d\n", info->request); | 
 | 		return -EINVAL; | 
 | 	} | 
 | 	if (copy_to_user(value_ptr, (char*)value, value_size)) { | 
 | 		DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__); | 
 | 		return -EFAULT; | 
 | 	} | 
 | 	return 0; | 
 | } | 
 |  | 
 |  | 
 | /* | 
 |  * Outdated mess for old drm with Xorg being in charge (void function now). | 
 |  */ | 
 | /** | 
 |  * radeon_driver_lastclose_kms - drm callback for last close | 
 |  * | 
 |  * @dev: drm dev pointer | 
 |  * | 
 |  * Switch vga_switcheroo state after last close (all asics). | 
 |  */ | 
 | void radeon_driver_lastclose_kms(struct drm_device *dev) | 
 | { | 
 | 	drm_fb_helper_lastclose(dev); | 
 | 	vga_switcheroo_process_delayed_switch(); | 
 | } | 
 |  | 
 | /** | 
 |  * radeon_driver_open_kms - drm callback for open | 
 |  * | 
 |  * @dev: drm dev pointer | 
 |  * @file_priv: drm file | 
 |  * | 
 |  * On device open, init vm on cayman+ (all asics). | 
 |  * Returns 0 on success, error on failure. | 
 |  */ | 
 | int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) | 
 | { | 
 | 	struct radeon_device *rdev = dev->dev_private; | 
 | 	int r; | 
 |  | 
 | 	file_priv->driver_priv = NULL; | 
 |  | 
 | 	r = pm_runtime_get_sync(dev->dev); | 
 | 	if (r < 0) | 
 | 		return r; | 
 |  | 
 | 	/* new gpu have virtual address space support */ | 
 | 	if (rdev->family >= CHIP_CAYMAN) { | 
 | 		struct radeon_fpriv *fpriv; | 
 | 		struct radeon_vm *vm; | 
 |  | 
 | 		fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL); | 
 | 		if (unlikely(!fpriv)) { | 
 | 			r = -ENOMEM; | 
 | 			goto out_suspend; | 
 | 		} | 
 |  | 
 | 		if (rdev->accel_working) { | 
 | 			vm = &fpriv->vm; | 
 | 			r = radeon_vm_init(rdev, vm); | 
 | 			if (r) { | 
 | 				kfree(fpriv); | 
 | 				goto out_suspend; | 
 | 			} | 
 |  | 
 | 			r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false); | 
 | 			if (r) { | 
 | 				radeon_vm_fini(rdev, vm); | 
 | 				kfree(fpriv); | 
 | 				goto out_suspend; | 
 | 			} | 
 |  | 
 | 			/* map the ib pool buffer read only into | 
 | 			 * virtual address space */ | 
 | 			vm->ib_bo_va = radeon_vm_bo_add(rdev, vm, | 
 | 							rdev->ring_tmp_bo.bo); | 
 | 			r = radeon_vm_bo_set_addr(rdev, vm->ib_bo_va, | 
 | 						  RADEON_VA_IB_OFFSET, | 
 | 						  RADEON_VM_PAGE_READABLE | | 
 | 						  RADEON_VM_PAGE_SNOOPED); | 
 | 			if (r) { | 
 | 				radeon_vm_fini(rdev, vm); | 
 | 				kfree(fpriv); | 
 | 				goto out_suspend; | 
 | 			} | 
 | 		} | 
 | 		file_priv->driver_priv = fpriv; | 
 | 	} | 
 |  | 
 | out_suspend: | 
 | 	pm_runtime_mark_last_busy(dev->dev); | 
 | 	pm_runtime_put_autosuspend(dev->dev); | 
 | 	return r; | 
 | } | 
 |  | 
 | /** | 
 |  * radeon_driver_postclose_kms - drm callback for post close | 
 |  * | 
 |  * @dev: drm dev pointer | 
 |  * @file_priv: drm file | 
 |  * | 
 |  * On device close, tear down hyperz and cmask filps on r1xx-r5xx | 
 |  * (all asics).  And tear down vm on cayman+ (all asics). | 
 |  */ | 
 | void radeon_driver_postclose_kms(struct drm_device *dev, | 
 | 				 struct drm_file *file_priv) | 
 | { | 
 | 	struct radeon_device *rdev = dev->dev_private; | 
 |  | 
 | 	pm_runtime_get_sync(dev->dev); | 
 |  | 
 | 	mutex_lock(&rdev->gem.mutex); | 
 | 	if (rdev->hyperz_filp == file_priv) | 
 | 		rdev->hyperz_filp = NULL; | 
 | 	if (rdev->cmask_filp == file_priv) | 
 | 		rdev->cmask_filp = NULL; | 
 | 	mutex_unlock(&rdev->gem.mutex); | 
 |  | 
 | 	radeon_uvd_free_handles(rdev, file_priv); | 
 | 	radeon_vce_free_handles(rdev, file_priv); | 
 |  | 
 | 	/* new gpu have virtual address space support */ | 
 | 	if (rdev->family >= CHIP_CAYMAN && file_priv->driver_priv) { | 
 | 		struct radeon_fpriv *fpriv = file_priv->driver_priv; | 
 | 		struct radeon_vm *vm = &fpriv->vm; | 
 | 		int r; | 
 |  | 
 | 		if (rdev->accel_working) { | 
 | 			r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false); | 
 | 			if (!r) { | 
 | 				if (vm->ib_bo_va) | 
 | 					radeon_vm_bo_rmv(rdev, vm->ib_bo_va); | 
 | 				radeon_bo_unreserve(rdev->ring_tmp_bo.bo); | 
 | 			} | 
 | 			radeon_vm_fini(rdev, vm); | 
 | 		} | 
 |  | 
 | 		kfree(fpriv); | 
 | 		file_priv->driver_priv = NULL; | 
 | 	} | 
 | 	pm_runtime_mark_last_busy(dev->dev); | 
 | 	pm_runtime_put_autosuspend(dev->dev); | 
 | } | 
 |  | 
 | /* | 
 |  * VBlank related functions. | 
 |  */ | 
 | /** | 
 |  * radeon_get_vblank_counter_kms - get frame count | 
 |  * | 
 |  * @dev: drm dev pointer | 
 |  * @pipe: crtc to get the frame count from | 
 |  * | 
 |  * Gets the frame count on the requested crtc (all asics). | 
 |  * Returns frame count on success, -EINVAL on failure. | 
 |  */ | 
 | u32 radeon_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe) | 
 | { | 
 | 	int vpos, hpos, stat; | 
 | 	u32 count; | 
 | 	struct radeon_device *rdev = dev->dev_private; | 
 |  | 
 | 	if (pipe >= rdev->num_crtc) { | 
 | 		DRM_ERROR("Invalid crtc %u\n", pipe); | 
 | 		return -EINVAL; | 
 | 	} | 
 |  | 
 | 	/* The hw increments its frame counter at start of vsync, not at start | 
 | 	 * of vblank, as is required by DRM core vblank counter handling. | 
 | 	 * Cook the hw count here to make it appear to the caller as if it | 
 | 	 * incremented at start of vblank. We measure distance to start of | 
 | 	 * vblank in vpos. vpos therefore will be >= 0 between start of vblank | 
 | 	 * and start of vsync, so vpos >= 0 means to bump the hw frame counter | 
 | 	 * result by 1 to give the proper appearance to caller. | 
 | 	 */ | 
 | 	if (rdev->mode_info.crtcs[pipe]) { | 
 | 		/* Repeat readout if needed to provide stable result if | 
 | 		 * we cross start of vsync during the queries. | 
 | 		 */ | 
 | 		do { | 
 | 			count = radeon_get_vblank_counter(rdev, pipe); | 
 | 			/* Ask radeon_get_crtc_scanoutpos to return vpos as | 
 | 			 * distance to start of vblank, instead of regular | 
 | 			 * vertical scanout pos. | 
 | 			 */ | 
 | 			stat = radeon_get_crtc_scanoutpos( | 
 | 				dev, pipe, GET_DISTANCE_TO_VBLANKSTART, | 
 | 				&vpos, &hpos, NULL, NULL, | 
 | 				&rdev->mode_info.crtcs[pipe]->base.hwmode); | 
 | 		} while (count != radeon_get_vblank_counter(rdev, pipe)); | 
 |  | 
 | 		if (((stat & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE)) != | 
 | 		    (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_ACCURATE))) { | 
 | 			DRM_DEBUG_VBL("Query failed! stat %d\n", stat); | 
 | 		} | 
 | 		else { | 
 | 			DRM_DEBUG_VBL("crtc %u: dist from vblank start %d\n", | 
 | 				      pipe, vpos); | 
 |  | 
 | 			/* Bump counter if we are at >= leading edge of vblank, | 
 | 			 * but before vsync where vpos would turn negative and | 
 | 			 * the hw counter really increments. | 
 | 			 */ | 
 | 			if (vpos >= 0) | 
 | 				count++; | 
 | 		} | 
 | 	} | 
 | 	else { | 
 | 	    /* Fallback to use value as is. */ | 
 | 	    count = radeon_get_vblank_counter(rdev, pipe); | 
 | 	    DRM_DEBUG_VBL("NULL mode info! Returned count may be wrong.\n"); | 
 | 	} | 
 |  | 
 | 	return count; | 
 | } | 
 |  | 
 | /** | 
 |  * radeon_enable_vblank_kms - enable vblank interrupt | 
 |  * | 
 |  * @dev: drm dev pointer | 
 |  * @crtc: crtc to enable vblank interrupt for | 
 |  * | 
 |  * Enable the interrupt on the requested crtc (all asics). | 
 |  * Returns 0 on success, -EINVAL on failure. | 
 |  */ | 
 | int radeon_enable_vblank_kms(struct drm_device *dev, int crtc) | 
 | { | 
 | 	struct radeon_device *rdev = dev->dev_private; | 
 | 	unsigned long irqflags; | 
 | 	int r; | 
 |  | 
 | 	if (crtc < 0 || crtc >= rdev->num_crtc) { | 
 | 		DRM_ERROR("Invalid crtc %d\n", crtc); | 
 | 		return -EINVAL; | 
 | 	} | 
 |  | 
 | 	spin_lock_irqsave(&rdev->irq.lock, irqflags); | 
 | 	rdev->irq.crtc_vblank_int[crtc] = true; | 
 | 	r = radeon_irq_set(rdev); | 
 | 	spin_unlock_irqrestore(&rdev->irq.lock, irqflags); | 
 | 	return r; | 
 | } | 
 |  | 
 | /** | 
 |  * radeon_disable_vblank_kms - disable vblank interrupt | 
 |  * | 
 |  * @dev: drm dev pointer | 
 |  * @crtc: crtc to disable vblank interrupt for | 
 |  * | 
 |  * Disable the interrupt on the requested crtc (all asics). | 
 |  */ | 
 | void radeon_disable_vblank_kms(struct drm_device *dev, int crtc) | 
 | { | 
 | 	struct radeon_device *rdev = dev->dev_private; | 
 | 	unsigned long irqflags; | 
 |  | 
 | 	if (crtc < 0 || crtc >= rdev->num_crtc) { | 
 | 		DRM_ERROR("Invalid crtc %d\n", crtc); | 
 | 		return; | 
 | 	} | 
 |  | 
 | 	spin_lock_irqsave(&rdev->irq.lock, irqflags); | 
 | 	rdev->irq.crtc_vblank_int[crtc] = false; | 
 | 	radeon_irq_set(rdev); | 
 | 	spin_unlock_irqrestore(&rdev->irq.lock, irqflags); | 
 | } | 
 |  | 
 | const struct drm_ioctl_desc radeon_ioctls_kms[] = { | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_CP_INIT, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_CP_START, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_CP_STOP, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_CP_RESET, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_CP_IDLE, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_CP_RESUME, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_RESET, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_FULLSCREEN, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_SWAP, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_CLEAR, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_VERTEX, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_INDICES, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_TEXTURE, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_STIPPLE, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_INDIRECT, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_VERTEX2, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_CMDBUF, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GETPARAM, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_FLIP, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_ALLOC, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_FREE, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_INIT_HEAP, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_IRQ_EMIT, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_IRQ_WAIT, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_SETPARAM, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_SURF_ALLOC, drm_invalid_op, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_SURF_FREE, drm_invalid_op, DRM_AUTH), | 
 | 	/* KMS */ | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_INFO, radeon_gem_info_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_CREATE, radeon_gem_create_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_MMAP, radeon_gem_mmap_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_DOMAIN, radeon_gem_set_domain_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_PREAD, radeon_gem_pread_ioctl, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_PWRITE, radeon_gem_pwrite_ioctl, DRM_AUTH), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_CS, radeon_cs_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_INFO, radeon_info_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_VA, radeon_gem_va_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_OP, radeon_gem_op_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | 	DRM_IOCTL_DEF_DRV(RADEON_GEM_USERPTR, radeon_gem_userptr_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), | 
 | }; | 
 | int radeon_max_kms_ioctl = ARRAY_SIZE(radeon_ioctls_kms); |