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linux/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

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/**************************************************************************
*
* Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
* All Rights Reserved.
*
* 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, sub license, 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 (including the
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
#include <linux/module.h>
#include "drmP.h"
#include "vmwgfx_drv.h"
#include "ttm/ttm_placement.h"
#include "ttm/ttm_bo_driver.h"
#include "ttm/ttm_object.h"
#include "ttm/ttm_module.h"
#define VMWGFX_DRIVER_NAME "vmwgfx"
#define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
#define VMWGFX_CHIP_SVGAII 0
#define VMW_FB_RESERVATION 0
#define VMW_MIN_INITIAL_WIDTH 800
#define VMW_MIN_INITIAL_HEIGHT 600
/**
* Fully encoded drm commands. Might move to vmw_drm.h
*/
#define DRM_IOCTL_VMW_GET_PARAM \
DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM, \
struct drm_vmw_getparam_arg)
#define DRM_IOCTL_VMW_ALLOC_DMABUF \
DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF, \
union drm_vmw_alloc_dmabuf_arg)
#define DRM_IOCTL_VMW_UNREF_DMABUF \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF, \
struct drm_vmw_unref_dmabuf_arg)
#define DRM_IOCTL_VMW_CURSOR_BYPASS \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS, \
struct drm_vmw_cursor_bypass_arg)
#define DRM_IOCTL_VMW_CONTROL_STREAM \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM, \
struct drm_vmw_control_stream_arg)
#define DRM_IOCTL_VMW_CLAIM_STREAM \
DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM, \
struct drm_vmw_stream_arg)
#define DRM_IOCTL_VMW_UNREF_STREAM \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM, \
struct drm_vmw_stream_arg)
#define DRM_IOCTL_VMW_CREATE_CONTEXT \
DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT, \
struct drm_vmw_context_arg)
#define DRM_IOCTL_VMW_UNREF_CONTEXT \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT, \
struct drm_vmw_context_arg)
#define DRM_IOCTL_VMW_CREATE_SURFACE \
DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE, \
union drm_vmw_surface_create_arg)
#define DRM_IOCTL_VMW_UNREF_SURFACE \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE, \
struct drm_vmw_surface_arg)
#define DRM_IOCTL_VMW_REF_SURFACE \
DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE, \
union drm_vmw_surface_reference_arg)
#define DRM_IOCTL_VMW_EXECBUF \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF, \
struct drm_vmw_execbuf_arg)
#define DRM_IOCTL_VMW_GET_3D_CAP \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP, \
struct drm_vmw_get_3d_cap_arg)
#define DRM_IOCTL_VMW_FENCE_WAIT \
DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT, \
struct drm_vmw_fence_wait_arg)
#define DRM_IOCTL_VMW_FENCE_SIGNALED \
DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED, \
struct drm_vmw_fence_signaled_arg)
#define DRM_IOCTL_VMW_FENCE_UNREF \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF, \
struct drm_vmw_fence_arg)
#define DRM_IOCTL_VMW_FENCE_EVENT \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT, \
struct drm_vmw_fence_event_arg)
#define DRM_IOCTL_VMW_PRESENT \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT, \
struct drm_vmw_present_arg)
#define DRM_IOCTL_VMW_PRESENT_READBACK \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK, \
struct drm_vmw_present_readback_arg)
#define DRM_IOCTL_VMW_UPDATE_LAYOUT \
DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT, \
struct drm_vmw_update_layout_arg)
/**
* The core DRM version of this macro doesn't account for
* DRM_COMMAND_BASE.
*/
#define VMW_IOCTL_DEF(ioctl, func, flags) \
[DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_##ioctl, flags, func, DRM_IOCTL_##ioctl}
/**
* Ioctl definitions.
*/
static struct drm_ioctl_desc vmw_ioctls[] = {
VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_CURSOR_BYPASS,
vmw_kms_cursor_bypass_ioctl,
DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_EXECBUF, vmw_execbuf_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_FENCE_SIGNALED,
vmw_fence_obj_signaled_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_FENCE_EVENT,
vmw_fence_event_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl,
DRM_AUTH | DRM_UNLOCKED),
/* these allow direct access to the framebuffers mark as master only */
VMW_IOCTL_DEF(VMW_PRESENT, vmw_present_ioctl,
DRM_MASTER | DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_PRESENT_READBACK,
vmw_present_readback_ioctl,
DRM_MASTER | DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT,
vmw_kms_update_layout_ioctl,
DRM_MASTER | DRM_UNLOCKED),
};
static struct pci_device_id vmw_pci_id_list[] = {
{0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
{0, 0, 0}
};
static int enable_fbdev;
static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
static void vmw_master_init(struct vmw_master *);
static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
void *ptr);
MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
module_param_named(enable_fbdev, enable_fbdev, int, 0600);
static void vmw_print_capabilities(uint32_t capabilities)
{
DRM_INFO("Capabilities:\n");
if (capabilities & SVGA_CAP_RECT_COPY)
DRM_INFO(" Rect copy.\n");
if (capabilities & SVGA_CAP_CURSOR)
DRM_INFO(" Cursor.\n");
if (capabilities & SVGA_CAP_CURSOR_BYPASS)
DRM_INFO(" Cursor bypass.\n");
if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
DRM_INFO(" Cursor bypass 2.\n");
if (capabilities & SVGA_CAP_8BIT_EMULATION)
DRM_INFO(" 8bit emulation.\n");
if (capabilities & SVGA_CAP_ALPHA_CURSOR)
DRM_INFO(" Alpha cursor.\n");
if (capabilities & SVGA_CAP_3D)
DRM_INFO(" 3D.\n");
if (capabilities & SVGA_CAP_EXTENDED_FIFO)
DRM_INFO(" Extended Fifo.\n");
if (capabilities & SVGA_CAP_MULTIMON)
DRM_INFO(" Multimon.\n");
if (capabilities & SVGA_CAP_PITCHLOCK)
DRM_INFO(" Pitchlock.\n");
if (capabilities & SVGA_CAP_IRQMASK)
DRM_INFO(" Irq mask.\n");
if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
DRM_INFO(" Display Topology.\n");
if (capabilities & SVGA_CAP_GMR)
DRM_INFO(" GMR.\n");
if (capabilities & SVGA_CAP_TRACES)
DRM_INFO(" Traces.\n");
if (capabilities & SVGA_CAP_GMR2)
DRM_INFO(" GMR2.\n");
if (capabilities & SVGA_CAP_SCREEN_OBJECT_2)
DRM_INFO(" Screen Object 2.\n");
}
/**
* vmw_execbuf_prepare_dummy_query - Initialize a query result structure at
* the start of a buffer object.
*
* @dev_priv: The device private structure.
*
* This function will idle the buffer using an uninterruptible wait, then
* map the first page and initialize a pending occlusion query result structure,
* Finally it will unmap the buffer.
*
* TODO: Since we're only mapping a single page, we should optimize the map
* to use kmap_atomic / iomap_atomic.
*/
static void vmw_dummy_query_bo_prepare(struct vmw_private *dev_priv)
{
struct ttm_bo_kmap_obj map;
volatile SVGA3dQueryResult *result;
bool dummy;
int ret;
struct ttm_bo_device *bdev = &dev_priv->bdev;
struct ttm_buffer_object *bo = dev_priv->dummy_query_bo;
ttm_bo_reserve(bo, false, false, false, 0);
spin_lock(&bdev->fence_lock);
ret = ttm_bo_wait(bo, false, false, false);
spin_unlock(&bdev->fence_lock);
if (unlikely(ret != 0))
(void) vmw_fallback_wait(dev_priv, false, true, 0, false,
10*HZ);
ret = ttm_bo_kmap(bo, 0, 1, &map);
if (likely(ret == 0)) {
result = ttm_kmap_obj_virtual(&map, &dummy);
result->totalSize = sizeof(*result);
result->state = SVGA3D_QUERYSTATE_PENDING;
result->result32 = 0xff;
ttm_bo_kunmap(&map);
} else
DRM_ERROR("Dummy query buffer map failed.\n");
ttm_bo_unreserve(bo);
}
/**
* vmw_dummy_query_bo_create - create a bo to hold a dummy query result
*
* @dev_priv: A device private structure.
*
* This function creates a small buffer object that holds the query
* result for dummy queries emitted as query barriers.
* No interruptible waits are done within this function.
*
* Returns an error if bo creation fails.
*/
static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
{
return ttm_bo_create(&dev_priv->bdev,
PAGE_SIZE,
ttm_bo_type_device,
&vmw_vram_sys_placement,
0, 0, false, NULL,
&dev_priv->dummy_query_bo);
}
static int vmw_request_device(struct vmw_private *dev_priv)
{
int ret;
ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
if (unlikely(ret != 0)) {
DRM_ERROR("Unable to initialize FIFO.\n");
return ret;
}
vmw_fence_fifo_up(dev_priv->fman);
ret = vmw_dummy_query_bo_create(dev_priv);
if (unlikely(ret != 0))
goto out_no_query_bo;
vmw_dummy_query_bo_prepare(dev_priv);
return 0;
out_no_query_bo:
vmw_fence_fifo_down(dev_priv->fman);
vmw_fifo_release(dev_priv, &dev_priv->fifo);
return ret;
}
static void vmw_release_device(struct vmw_private *dev_priv)
{
/*
* Previous destructions should've released
* the pinned bo.
*/
BUG_ON(dev_priv->pinned_bo != NULL);
ttm_bo_unref(&dev_priv->dummy_query_bo);
vmw_fence_fifo_down(dev_priv->fman);
vmw_fifo_release(dev_priv, &dev_priv->fifo);
}
/**
* Increase the 3d resource refcount.
* If the count was prevously zero, initialize the fifo, switching to svga
* mode. Note that the master holds a ref as well, and may request an
* explicit switch to svga mode if fb is not running, using @unhide_svga.
*/
int vmw_3d_resource_inc(struct vmw_private *dev_priv,
bool unhide_svga)
{
int ret = 0;
mutex_lock(&dev_priv->release_mutex);
if (unlikely(dev_priv->num_3d_resources++ == 0)) {
ret = vmw_request_device(dev_priv);
if (unlikely(ret != 0))
--dev_priv->num_3d_resources;
} else if (unhide_svga) {
mutex_lock(&dev_priv->hw_mutex);
vmw_write(dev_priv, SVGA_REG_ENABLE,
vmw_read(dev_priv, SVGA_REG_ENABLE) &
~SVGA_REG_ENABLE_HIDE);
mutex_unlock(&dev_priv->hw_mutex);
}
mutex_unlock(&dev_priv->release_mutex);
return ret;
}
/**
* Decrease the 3d resource refcount.
* If the count reaches zero, disable the fifo, switching to vga mode.
* Note that the master holds a refcount as well, and may request an
* explicit switch to vga mode when it releases its refcount to account
* for the situation of an X server vt switch to VGA with 3d resources
* active.
*/
void vmw_3d_resource_dec(struct vmw_private *dev_priv,
bool hide_svga)
{
int32_t n3d;
mutex_lock(&dev_priv->release_mutex);
if (unlikely(--dev_priv->num_3d_resources == 0))
vmw_release_device(dev_priv);
else if (hide_svga) {
mutex_lock(&dev_priv->hw_mutex);
vmw_write(dev_priv, SVGA_REG_ENABLE,
vmw_read(dev_priv, SVGA_REG_ENABLE) |
SVGA_REG_ENABLE_HIDE);
mutex_unlock(&dev_priv->hw_mutex);
}
n3d = (int32_t) dev_priv->num_3d_resources;
mutex_unlock(&dev_priv->release_mutex);
BUG_ON(n3d < 0);
}
/**
* Sets the initial_[width|height] fields on the given vmw_private.
*
* It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then
* clamping the value to fb_max_[width|height] fields and the
* VMW_MIN_INITIAL_[WIDTH|HEIGHT].
* If the values appear to be invalid, set them to
* VMW_MIN_INITIAL_[WIDTH|HEIGHT].
*/
static void vmw_get_initial_size(struct vmw_private *dev_priv)
{
uint32_t width;
uint32_t height;
width = vmw_read(dev_priv, SVGA_REG_WIDTH);
height = vmw_read(dev_priv, SVGA_REG_HEIGHT);
width = max_t(uint32_t, width, VMW_MIN_INITIAL_WIDTH);
height = max_t(uint32_t, height, VMW_MIN_INITIAL_HEIGHT);
if (width > dev_priv->fb_max_width ||
height > dev_priv->fb_max_height) {
/*
* This is a host error and shouldn't occur.
*/
width = VMW_MIN_INITIAL_WIDTH;
height = VMW_MIN_INITIAL_HEIGHT;
}
dev_priv->initial_width = width;
dev_priv->initial_height = height;
}
static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
{
struct vmw_private *dev_priv;
int ret;
uint32_t svga_id;
dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
if (unlikely(dev_priv == NULL)) {
DRM_ERROR("Failed allocating a device private struct.\n");
return -ENOMEM;
}
memset(dev_priv, 0, sizeof(*dev_priv));
pci_set_master(dev->pdev);
dev_priv->dev = dev;
dev_priv->vmw_chipset = chipset;
dev_priv->last_read_seqno = (uint32_t) -100;
mutex_init(&dev_priv->hw_mutex);
mutex_init(&dev_priv->cmdbuf_mutex);
mutex_init(&dev_priv->release_mutex);
rwlock_init(&dev_priv->resource_lock);
idr_init(&dev_priv->context_idr);
idr_init(&dev_priv->surface_idr);
idr_init(&dev_priv->stream_idr);
mutex_init(&dev_priv->init_mutex);
init_waitqueue_head(&dev_priv->fence_queue);
init_waitqueue_head(&dev_priv->fifo_queue);
dev_priv->fence_queue_waiters = 0;
atomic_set(&dev_priv->fifo_queue_waiters, 0);
INIT_LIST_HEAD(&dev_priv->surface_lru);
dev_priv->used_memory_size = 0;
dev_priv->io_start = pci_resource_start(dev->pdev, 0);
dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
dev_priv->enable_fb = enable_fbdev;
mutex_lock(&dev_priv->hw_mutex);
vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
svga_id = vmw_read(dev_priv, SVGA_REG_ID);
if (svga_id != SVGA_ID_2) {
ret = -ENOSYS;
DRM_ERROR("Unsupported SVGA ID 0x%x\n", svga_id);
mutex_unlock(&dev_priv->hw_mutex);
goto out_err0;
}
dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
vmw_get_initial_size(dev_priv);
if (dev_priv->capabilities & SVGA_CAP_GMR) {
dev_priv->max_gmr_descriptors =
vmw_read(dev_priv,
SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH);
dev_priv->max_gmr_ids =
vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
}
if (dev_priv->capabilities & SVGA_CAP_GMR2) {
dev_priv->max_gmr_pages =
vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES);
dev_priv->memory_size =
vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE);
dev_priv->memory_size -= dev_priv->vram_size;
} else {
/*
* An arbitrary limit of 512MiB on surface
* memory. But all HWV8 hardware supports GMR2.
*/
dev_priv->memory_size = 512*1024*1024;
}
mutex_unlock(&dev_priv->hw_mutex);
vmw_print_capabilities(dev_priv->capabilities);
if (dev_priv->capabilities & SVGA_CAP_GMR) {
DRM_INFO("Max GMR ids is %u\n",
(unsigned)dev_priv->max_gmr_ids);
DRM_INFO("Max GMR descriptors is %u\n",
(unsigned)dev_priv->max_gmr_descriptors);
}
if (dev_priv->capabilities & SVGA_CAP_GMR2) {
DRM_INFO("Max number of GMR pages is %u\n",
(unsigned)dev_priv->max_gmr_pages);
DRM_INFO("Max dedicated hypervisor surface memory is %u kiB\n",
(unsigned)dev_priv->memory_size / 1024);
}
DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
dev_priv->vram_start, dev_priv->vram_size / 1024);
DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
dev_priv->mmio_start, dev_priv->mmio_size / 1024);
ret = vmw_ttm_global_init(dev_priv);
if (unlikely(ret != 0))
goto out_err0;
vmw_master_init(&dev_priv->fbdev_master);
ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
dev_priv->active_master = &dev_priv->fbdev_master;
ret = ttm_bo_device_init(&dev_priv->bdev,
dev_priv->bo_global_ref.ref.object,
&vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET,
false);
if (unlikely(ret != 0)) {
DRM_ERROR("Failed initializing TTM buffer object driver.\n");
goto out_err1;
}
ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
(dev_priv->vram_size >> PAGE_SHIFT));
if (unlikely(ret != 0)) {
DRM_ERROR("Failed initializing memory manager for VRAM.\n");
goto out_err2;
}
dev_priv->has_gmr = true;
if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
dev_priv->max_gmr_ids) != 0) {
DRM_INFO("No GMR memory available. "
"Graphics memory resources are very limited.\n");
dev_priv->has_gmr = false;
}
dev_priv->mmio_mtrr = drm_mtrr_add(dev_priv->mmio_start,
dev_priv->mmio_size, DRM_MTRR_WC);
dev_priv->mmio_virt = ioremap_wc(dev_priv->mmio_start,
dev_priv->mmio_size);
if (unlikely(dev_priv->mmio_virt == NULL)) {
ret = -ENOMEM;
DRM_ERROR("Failed mapping MMIO.\n");
goto out_err3;
}
/* Need mmio memory to check for fifo pitchlock cap. */
if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
!(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
!vmw_fifo_have_pitchlock(dev_priv)) {
ret = -ENOSYS;
DRM_ERROR("Hardware has no pitchlock\n");
goto out_err4;
}
dev_priv->tdev = ttm_object_device_init
(dev_priv->mem_global_ref.object, 12);
if (unlikely(dev_priv->tdev == NULL)) {
DRM_ERROR("Unable to initialize TTM object management.\n");
ret = -ENOMEM;
goto out_err4;
}
dev->dev_private = dev_priv;
ret = pci_request_regions(dev->pdev, "vmwgfx probe");
dev_priv->stealth = (ret != 0);
if (dev_priv->stealth) {
/**
* Request at least the mmio PCI resource.
*/
DRM_INFO("It appears like vesafb is loaded. "
"Ignore above error if any.\n");
ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
if (unlikely(ret != 0)) {
DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
goto out_no_device;
}
}
dev_priv->fman = vmw_fence_manager_init(dev_priv);
if (unlikely(dev_priv->fman == NULL))
goto out_no_fman;
/* Need to start the fifo to check if we can do screen objects */
ret = vmw_3d_resource_inc(dev_priv, true);
if (unlikely(ret != 0))
goto out_no_fifo;
vmw_kms_save_vga(dev_priv);
/* Start kms and overlay systems, needs fifo. */
ret = vmw_kms_init(dev_priv);
if (unlikely(ret != 0))
goto out_no_kms;
vmw_overlay_init(dev_priv);
/* 3D Depends on Screen Objects being used. */
DRM_INFO("Detected %sdevice 3D availability.\n",
vmw_fifo_have_3d(dev_priv) ?
"" : "no ");
/* We might be done with the fifo now */
if (dev_priv->enable_fb) {
vmw_fb_init(dev_priv);
} else {
vmw_kms_restore_vga(dev_priv);
vmw_3d_resource_dec(dev_priv, true);
}
if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
ret = drm_irq_install(dev);
if (unlikely(ret != 0)) {
DRM_ERROR("Failed installing irq: %d\n", ret);
goto out_no_irq;
}
}
dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
register_pm_notifier(&dev_priv->pm_nb);
return 0;
out_no_irq:
if (dev_priv->enable_fb)
vmw_fb_close(dev_priv);
vmw_overlay_close(dev_priv);
vmw_kms_close(dev_priv);
out_no_kms:
/* We still have a 3D resource reference held */
if (dev_priv->enable_fb) {
vmw_kms_restore_vga(dev_priv);
vmw_3d_resource_dec(dev_priv, false);
}
out_no_fifo:
vmw_fence_manager_takedown(dev_priv->fman);
out_no_fman:
if (dev_priv->stealth)
pci_release_region(dev->pdev, 2);
else
pci_release_regions(dev->pdev);
out_no_device:
ttm_object_device_release(&dev_priv->tdev);
out_err4:
iounmap(dev_priv->mmio_virt);
out_err3:
drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
dev_priv->mmio_size, DRM_MTRR_WC);
if (dev_priv->has_gmr)
(void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
(void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
out_err2:
(void)ttm_bo_device_release(&dev_priv->bdev);
out_err1:
vmw_ttm_global_release(dev_priv);
out_err0:
idr_destroy(&dev_priv->surface_idr);
idr_destroy(&dev_priv->context_idr);
idr_destroy(&dev_priv->stream_idr);
kfree(dev_priv);
return ret;
}
static int vmw_driver_unload(struct drm_device *dev)
{
struct vmw_private *dev_priv = vmw_priv(dev);
unregister_pm_notifier(&dev_priv->pm_nb);
if (dev_priv->ctx.cmd_bounce)
vfree(dev_priv->ctx.cmd_bounce);
if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
drm_irq_uninstall(dev_priv->dev);
if (dev_priv->enable_fb) {
vmw_fb_close(dev_priv);
vmw_kms_restore_vga(dev_priv);
vmw_3d_resource_dec(dev_priv, false);
}
vmw_kms_close(dev_priv);
vmw_overlay_close(dev_priv);
vmw_fence_manager_takedown(dev_priv->fman);
if (dev_priv->stealth)
pci_release_region(dev->pdev, 2);
else
pci_release_regions(dev->pdev);
ttm_object_device_release(&dev_priv->tdev);
iounmap(dev_priv->mmio_virt);
drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
dev_priv->mmio_size, DRM_MTRR_WC);
if (dev_priv->has_gmr)
(void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
(void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
(void)ttm_bo_device_release(&dev_priv->bdev);
vmw_ttm_global_release(dev_priv);
idr_destroy(&dev_priv->surface_idr);
idr_destroy(&dev_priv->context_idr);
idr_destroy(&dev_priv->stream_idr);
kfree(dev_priv);
return 0;
}
static void vmw_preclose(struct drm_device *dev,
struct drm_file *file_priv)
{
struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
struct vmw_private *dev_priv = vmw_priv(dev);
vmw_event_fence_fpriv_gone(dev_priv->fman, &vmw_fp->fence_events);
}
static void vmw_postclose(struct drm_device *dev,
struct drm_file *file_priv)
{
struct vmw_fpriv *vmw_fp;
vmw_fp = vmw_fpriv(file_priv);
ttm_object_file_release(&vmw_fp->tfile);
if (vmw_fp->locked_master)
drm_master_put(&vmw_fp->locked_master);
kfree(vmw_fp);
}
static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct vmw_fpriv *vmw_fp;
int ret = -ENOMEM;
vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
if (unlikely(vmw_fp == NULL))
return ret;
INIT_LIST_HEAD(&vmw_fp->fence_events);
vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
if (unlikely(vmw_fp->tfile == NULL))
goto out_no_tfile;
file_priv->driver_priv = vmw_fp;
if (unlikely(dev_priv->bdev.dev_mapping == NULL))
dev_priv->bdev.dev_mapping =
file_priv->filp->f_path.dentry->d_inode->i_mapping;
return 0;
out_no_tfile:
kfree(vmw_fp);
return ret;
}
static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
struct drm_file *file_priv = filp->private_data;
struct drm_device *dev = file_priv->minor->dev;
unsigned int nr = DRM_IOCTL_NR(cmd);
/*
* Do extra checking on driver private ioctls.
*/
if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
&& (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
struct drm_ioctl_desc *ioctl =
&vmw_ioctls[nr - DRM_COMMAND_BASE];
if (unlikely(ioctl->cmd_drv != cmd)) {
DRM_ERROR("Invalid command format, ioctl %d\n",
nr - DRM_COMMAND_BASE);
return -EINVAL;
}
}
return drm_ioctl(filp, cmd, arg);
}
static int vmw_firstopen(struct drm_device *dev)
{
struct vmw_private *dev_priv = vmw_priv(dev);
dev_priv->is_opened = true;
return 0;
}
static void vmw_lastclose(struct drm_device *dev)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_crtc *crtc;
struct drm_mode_set set;
int ret;
/**
* Do nothing on the lastclose call from drm_unload.
*/
if (!dev_priv->is_opened)
return;
dev_priv->is_opened = false;
set.x = 0;
set.y = 0;
set.fb = NULL;
set.mode = NULL;
set.connectors = NULL;
set.num_connectors = 0;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
set.crtc = crtc;
ret = crtc->funcs->set_config(&set);
WARN_ON(ret != 0);
}
}
static void vmw_master_init(struct vmw_master *vmaster)
{
ttm_lock_init(&vmaster->lock);
INIT_LIST_HEAD(&vmaster->fb_surf);
mutex_init(&vmaster->fb_surf_mutex);
}
static int vmw_master_create(struct drm_device *dev,
struct drm_master *master)
{
struct vmw_master *vmaster;
vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
if (unlikely(vmaster == NULL))
return -ENOMEM;
vmw_master_init(vmaster);
ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
master->driver_priv = vmaster;
return 0;
}
static void vmw_master_destroy(struct drm_device *dev,
struct drm_master *master)
{
struct vmw_master *vmaster = vmw_master(master);
master->driver_priv = NULL;
kfree(vmaster);
}
static int vmw_master_set(struct drm_device *dev,
struct drm_file *file_priv,
bool from_open)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
struct vmw_master *active = dev_priv->active_master;
struct vmw_master *vmaster = vmw_master(file_priv->master);
int ret = 0;
if (!dev_priv->enable_fb) {
ret = vmw_3d_resource_inc(dev_priv, true);
if (unlikely(ret != 0))
return ret;
vmw_kms_save_vga(dev_priv);
mutex_lock(&dev_priv->hw_mutex);
vmw_write(dev_priv, SVGA_REG_TRACES, 0);
mutex_unlock(&dev_priv->hw_mutex);
}
if (active) {
BUG_ON(active != &dev_priv->fbdev_master);
ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
if (unlikely(ret != 0))
goto out_no_active_lock;
ttm_lock_set_kill(&active->lock, true, SIGTERM);
ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
if (unlikely(ret != 0)) {
DRM_ERROR("Unable to clean VRAM on "
"master drop.\n");
}
dev_priv->active_master = NULL;
}
ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
if (!from_open) {
ttm_vt_unlock(&vmaster->lock);
BUG_ON(vmw_fp->locked_master != file_priv->master);
drm_master_put(&vmw_fp->locked_master);
}
dev_priv->active_master = vmaster;
return 0;
out_no_active_lock:
if (!dev_priv->enable_fb) {
mutex_lock(&dev_priv->hw_mutex);
vmw_write(dev_priv, SVGA_REG_TRACES, 1);
mutex_unlock(&dev_priv->hw_mutex);
vmw_kms_restore_vga(dev_priv);
vmw_3d_resource_dec(dev_priv, true);
}
return ret;
}
static void vmw_master_drop(struct drm_device *dev,
struct drm_file *file_priv,
bool from_release)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
struct vmw_master *vmaster = vmw_master(file_priv->master);
int ret;
/**
* Make sure the master doesn't disappear while we have
* it locked.
*/
vmw_fp->locked_master = drm_master_get(file_priv->master);
ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);
vmw_execbuf_release_pinned_bo(dev_priv, false, 0);
if (unlikely((ret != 0))) {
DRM_ERROR("Unable to lock TTM at VT switch.\n");
drm_master_put(&vmw_fp->locked_master);
}
ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
if (!dev_priv->enable_fb) {
ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
if (unlikely(ret != 0))
DRM_ERROR("Unable to clean VRAM on master drop.\n");
mutex_lock(&dev_priv->hw_mutex);
vmw_write(dev_priv, SVGA_REG_TRACES, 1);
mutex_unlock(&dev_priv->hw_mutex);
vmw_kms_restore_vga(dev_priv);
vmw_3d_resource_dec(dev_priv, true);
}
dev_priv->active_master = &dev_priv->fbdev_master;
ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
ttm_vt_unlock(&dev_priv->fbdev_master.lock);
if (dev_priv->enable_fb)
vmw_fb_on(dev_priv);
}
static void vmw_remove(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
drm_put_dev(dev);
}
static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
void *ptr)
{
struct vmw_private *dev_priv =
container_of(nb, struct vmw_private, pm_nb);
struct vmw_master *vmaster = dev_priv->active_master;
switch (val) {
case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
ttm_suspend_lock(&vmaster->lock);
/**
* This empties VRAM and unbinds all GMR bindings.
* Buffer contents is moved to swappable memory.
*/
vmw_execbuf_release_pinned_bo(dev_priv, false, 0);
ttm_bo_swapout_all(&dev_priv->bdev);
break;
case PM_POST_HIBERNATION:
case PM_POST_SUSPEND:
case PM_POST_RESTORE:
ttm_suspend_unlock(&vmaster->lock);
break;
case PM_RESTORE_PREPARE:
break;
default:
break;
}
return 0;
}
/**
* These might not be needed with the virtual SVGA device.
*/
static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct drm_device *dev = pci_get_drvdata(pdev);
struct vmw_private *dev_priv = vmw_priv(dev);
if (dev_priv->num_3d_resources != 0) {
DRM_INFO("Can't suspend or hibernate "
"while 3D resources are active.\n");
return -EBUSY;
}
pci_save_state(pdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, PCI_D3hot);
return 0;
}
static int vmw_pci_resume(struct pci_dev *pdev)
{
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
return pci_enable_device(pdev);
}
static int vmw_pm_suspend(struct device *kdev)
{
struct pci_dev *pdev = to_pci_dev(kdev);
struct pm_message dummy;
dummy.event = 0;
return vmw_pci_suspend(pdev, dummy);
}
static int vmw_pm_resume(struct device *kdev)
{
struct pci_dev *pdev = to_pci_dev(kdev);
return vmw_pci_resume(pdev);
}
static int vmw_pm_prepare(struct device *kdev)
{
struct pci_dev *pdev = to_pci_dev(kdev);
struct drm_device *dev = pci_get_drvdata(pdev);
struct vmw_private *dev_priv = vmw_priv(dev);
/**
* Release 3d reference held by fbdev and potentially
* stop fifo.
*/
dev_priv->suspended = true;
if (dev_priv->enable_fb)
vmw_3d_resource_dec(dev_priv, true);
if (dev_priv->num_3d_resources != 0) {
DRM_INFO("Can't suspend or hibernate "
"while 3D resources are active.\n");
if (dev_priv->enable_fb)
vmw_3d_resource_inc(dev_priv, true);
dev_priv->suspended = false;
return -EBUSY;
}
return 0;
}
static void vmw_pm_complete(struct device *kdev)
{
struct pci_dev *pdev = to_pci_dev(kdev);
struct drm_device *dev = pci_get_drvdata(pdev);
struct vmw_private *dev_priv = vmw_priv(dev);
/**
* Reclaim 3d reference held by fbdev and potentially
* start fifo.
*/
if (dev_priv->enable_fb)
vmw_3d_resource_inc(dev_priv, false);
dev_priv->suspended = false;
}
static const struct dev_pm_ops vmw_pm_ops = {
.prepare = vmw_pm_prepare,
.complete = vmw_pm_complete,
.suspend = vmw_pm_suspend,
.resume = vmw_pm_resume,
};
static const struct file_operations vmwgfx_driver_fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = vmw_unlocked_ioctl,
.mmap = vmw_mmap,
.poll = vmw_fops_poll,
.read = vmw_fops_read,
.fasync = drm_fasync,
#if defined(CONFIG_COMPAT)
.compat_ioctl = drm_compat_ioctl,
#endif
.llseek = noop_llseek,
};
static struct drm_driver driver = {
.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
DRIVER_MODESET,
.load = vmw_driver_load,
.unload = vmw_driver_unload,
.firstopen = vmw_firstopen,
.lastclose = vmw_lastclose,
.irq_preinstall = vmw_irq_preinstall,
.irq_postinstall = vmw_irq_postinstall,
.irq_uninstall = vmw_irq_uninstall,
.irq_handler = vmw_irq_handler,
.get_vblank_counter = vmw_get_vblank_counter,
.enable_vblank = vmw_enable_vblank,
.disable_vblank = vmw_disable_vblank,
.reclaim_buffers_locked = NULL,
.ioctls = vmw_ioctls,
.num_ioctls = DRM_ARRAY_SIZE(vmw_ioctls),
.dma_quiescent = NULL, /*vmw_dma_quiescent, */
.master_create = vmw_master_create,
.master_destroy = vmw_master_destroy,
.master_set = vmw_master_set,
.master_drop = vmw_master_drop,
.open = vmw_driver_open,
.preclose = vmw_preclose,
.postclose = vmw_postclose,
.fops = &vmwgfx_driver_fops,
.name = VMWGFX_DRIVER_NAME,
.desc = VMWGFX_DRIVER_DESC,
.date = VMWGFX_DRIVER_DATE,
.major = VMWGFX_DRIVER_MAJOR,
.minor = VMWGFX_DRIVER_MINOR,
.patchlevel = VMWGFX_DRIVER_PATCHLEVEL
};
static struct pci_driver vmw_pci_driver = {
.name = VMWGFX_DRIVER_NAME,
.id_table = vmw_pci_id_list,
.probe = vmw_probe,
.remove = vmw_remove,
.driver = {
.pm = &vmw_pm_ops
}
};
static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
return drm_get_pci_dev(pdev, ent, &driver);
}
static int __init vmwgfx_init(void)
{
int ret;
ret = drm_pci_init(&driver, &vmw_pci_driver);
if (ret)
DRM_ERROR("Failed initializing DRM.\n");
return ret;
}
static void __exit vmwgfx_exit(void)
{
drm_pci_exit(&driver, &vmw_pci_driver);
}
module_init(vmwgfx_init);
module_exit(vmwgfx_exit);
MODULE_AUTHOR("VMware Inc. and others");
MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
MODULE_LICENSE("GPL and additional rights");
MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
__stringify(VMWGFX_DRIVER_MINOR) "."
__stringify(VMWGFX_DRIVER_PATCHLEVEL) "."
"0");
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