/*
* 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 <linux/pci.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/vga_switcheroo.h>
#include <drm/drm_file.h>
#include <drm/drm_ioctl.h>
#include <drm/radeon_drm.h>
#include "radeon.h"
#include "radeon_asic.h"
#include "radeon_drv.h"
#include "radeon_kms.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);
if (rdev->agp)
arch_phys_wc_del(rdev->agp->agp_mtrr);
kfree(rdev->agp);
rdev->agp = NULL;
done_free:
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 pci_dev *pdev = to_pci_dev(dev->dev);
struct radeon_device *rdev = dev->dev_private;
int r, acpi_status;
#ifdef __alpha__
rdev->hose = pdev->sysdata;
#endif
if (pci_find_capability(pdev, PCI_CAP_ID_AGP))
rdev->agp = radeon_agp_head_init(dev);
if (rdev->agp) {
rdev->agp->agp_mtrr = arch_phys_wc_add(
rdev->agp->agp_info.aper_base,
rdev->agp->agp_info.aper_size *
1024 * 1024 );
}
/* update BUS flag */
if (pci_find_capability(pdev, PCI_CAP_ID_AGP)) {
flags |= RADEON_IS_AGP;
} else if (pci_is_pcie(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(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, pdev, flags);
if (r) {
dev_err(dev->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->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->dev, "Error during ACPI methods call\n" );
}
if (radeon_is_px(dev)) {
dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
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 .
*
* @ dev : drm 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 .
*/
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;
struct ttm_resource_manager *man;
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 = to_pci_dev(dev->dev)->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" );
return -EINVAL;
}
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);
man = ttm_manager_type(&rdev->mman.bdev, TTM_PL_VRAM);
value64 = ttm_resource_manager_usage(man);
break ;
case RADEON_INFO_GTT_USAGE:
value = (uint32_t *)&value64;
value_size = sizeof (uint64_t);
man = ttm_manager_type(&rdev->mman.bdev, TTM_PL_TT);
value64 = ttm_resource_manager_usage(man);
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 ;
}
/**
* 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;
struct radeon_fpriv *fpriv;
struct radeon_vm *vm;
int r;
file_priv->driver_priv = NULL;
r = pm_runtime_get_sync(dev->dev);
if (r < 0 ) {
pm_runtime_put_autosuspend(dev->dev);
return r;
}
/* new gpu have virtual address space support */
if (rdev->family >= CHIP_CAYMAN) {
fpriv = kzalloc(sizeof (*fpriv), GFP_KERNEL);
if (unlikely(!fpriv)) {
r = -ENOMEM;
goto err_suspend;
}
if (rdev->accel_working) {
vm = &fpriv->vm;
r = radeon_vm_init(rdev, vm);
if (r)
goto err_fpriv;
r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false );
if (r)
goto err_vm_fini;
/* 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);
if (!vm->ib_bo_va) {
r = -ENOMEM;
goto err_vm_fini;
}
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)
goto err_vm_fini;
}
file_priv->driver_priv = fpriv;
}
pm_runtime_mark_last_busy(dev->dev);
pm_runtime_put_autosuspend(dev->dev);
return 0 ;
err_vm_fini:
radeon_vm_fini(rdev, vm);
err_fpriv:
kfree(fpriv);
err_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
*
* @ crtc : 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_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
unsigned int pipe = crtc->index;
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
*
* @ 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_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
unsigned int pipe = crtc->index;
struct radeon_device *rdev = dev->dev_private;
unsigned long irqflags;
int r;
if (pipe >= rdev->num_crtc) {
DRM_ERROR("Invalid crtc %d\n" , pipe);
return -EINVAL;
}
spin_lock_irqsave(&rdev->irq.lock, irqflags);
rdev->irq.crtc_vblank_int[pipe] = true ;
r = radeon_irq_set(rdev);
spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
return r;
}
/**
* radeon_disable_vblank_kms - disable vblank interrupt
*
* @ crtc : crtc to disable vblank interrupt for
*
* Disable the interrupt on the requested crtc ( all asics ) .
*/
void radeon_disable_vblank_kms(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
unsigned int pipe = crtc->index;
struct radeon_device *rdev = dev->dev_private;
unsigned long irqflags;
if (pipe >= rdev->num_crtc) {
DRM_ERROR("Invalid crtc %d\n" , pipe);
return ;
}
spin_lock_irqsave(&rdev->irq.lock, irqflags);
rdev->irq.crtc_vblank_int[pipe] = false ;
radeon_irq_set(rdev);
spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
}
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