329 lines
8.6 KiB
C
329 lines
8.6 KiB
C
/**************************************************************************
|
|
*
|
|
* 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 "vmwgfx_drv.h"
|
|
#include "ttm/ttm_bo_driver.h"
|
|
#include "ttm/ttm_placement.h"
|
|
|
|
static uint32_t vram_placement_flags = TTM_PL_FLAG_VRAM |
|
|
TTM_PL_FLAG_CACHED;
|
|
|
|
static uint32_t vram_ne_placement_flags = TTM_PL_FLAG_VRAM |
|
|
TTM_PL_FLAG_CACHED |
|
|
TTM_PL_FLAG_NO_EVICT;
|
|
|
|
static uint32_t sys_placement_flags = TTM_PL_FLAG_SYSTEM |
|
|
TTM_PL_FLAG_CACHED;
|
|
|
|
static uint32_t gmr_placement_flags = VMW_PL_FLAG_GMR |
|
|
TTM_PL_FLAG_CACHED;
|
|
|
|
struct ttm_placement vmw_vram_placement = {
|
|
.fpfn = 0,
|
|
.lpfn = 0,
|
|
.num_placement = 1,
|
|
.placement = &vram_placement_flags,
|
|
.num_busy_placement = 1,
|
|
.busy_placement = &vram_placement_flags
|
|
};
|
|
|
|
static uint32_t vram_gmr_placement_flags[] = {
|
|
TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED,
|
|
VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED
|
|
};
|
|
|
|
struct ttm_placement vmw_vram_gmr_placement = {
|
|
.fpfn = 0,
|
|
.lpfn = 0,
|
|
.num_placement = 2,
|
|
.placement = vram_gmr_placement_flags,
|
|
.num_busy_placement = 1,
|
|
.busy_placement = &gmr_placement_flags
|
|
};
|
|
|
|
struct ttm_placement vmw_vram_sys_placement = {
|
|
.fpfn = 0,
|
|
.lpfn = 0,
|
|
.num_placement = 1,
|
|
.placement = &vram_placement_flags,
|
|
.num_busy_placement = 1,
|
|
.busy_placement = &sys_placement_flags
|
|
};
|
|
|
|
struct ttm_placement vmw_vram_ne_placement = {
|
|
.fpfn = 0,
|
|
.lpfn = 0,
|
|
.num_placement = 1,
|
|
.placement = &vram_ne_placement_flags,
|
|
.num_busy_placement = 1,
|
|
.busy_placement = &vram_ne_placement_flags
|
|
};
|
|
|
|
struct ttm_placement vmw_sys_placement = {
|
|
.fpfn = 0,
|
|
.lpfn = 0,
|
|
.num_placement = 1,
|
|
.placement = &sys_placement_flags,
|
|
.num_busy_placement = 1,
|
|
.busy_placement = &sys_placement_flags
|
|
};
|
|
|
|
struct vmw_ttm_backend {
|
|
struct ttm_backend backend;
|
|
struct page **pages;
|
|
unsigned long num_pages;
|
|
struct vmw_private *dev_priv;
|
|
int gmr_id;
|
|
};
|
|
|
|
static int vmw_ttm_populate(struct ttm_backend *backend,
|
|
unsigned long num_pages, struct page **pages,
|
|
struct page *dummy_read_page)
|
|
{
|
|
struct vmw_ttm_backend *vmw_be =
|
|
container_of(backend, struct vmw_ttm_backend, backend);
|
|
|
|
vmw_be->pages = pages;
|
|
vmw_be->num_pages = num_pages;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vmw_ttm_bind(struct ttm_backend *backend, struct ttm_mem_reg *bo_mem)
|
|
{
|
|
struct vmw_ttm_backend *vmw_be =
|
|
container_of(backend, struct vmw_ttm_backend, backend);
|
|
|
|
vmw_be->gmr_id = bo_mem->start;
|
|
|
|
return vmw_gmr_bind(vmw_be->dev_priv, vmw_be->pages,
|
|
vmw_be->num_pages, vmw_be->gmr_id);
|
|
}
|
|
|
|
static int vmw_ttm_unbind(struct ttm_backend *backend)
|
|
{
|
|
struct vmw_ttm_backend *vmw_be =
|
|
container_of(backend, struct vmw_ttm_backend, backend);
|
|
|
|
vmw_gmr_unbind(vmw_be->dev_priv, vmw_be->gmr_id);
|
|
return 0;
|
|
}
|
|
|
|
static void vmw_ttm_clear(struct ttm_backend *backend)
|
|
{
|
|
struct vmw_ttm_backend *vmw_be =
|
|
container_of(backend, struct vmw_ttm_backend, backend);
|
|
|
|
vmw_be->pages = NULL;
|
|
vmw_be->num_pages = 0;
|
|
}
|
|
|
|
static void vmw_ttm_destroy(struct ttm_backend *backend)
|
|
{
|
|
struct vmw_ttm_backend *vmw_be =
|
|
container_of(backend, struct vmw_ttm_backend, backend);
|
|
|
|
kfree(vmw_be);
|
|
}
|
|
|
|
static struct ttm_backend_func vmw_ttm_func = {
|
|
.populate = vmw_ttm_populate,
|
|
.clear = vmw_ttm_clear,
|
|
.bind = vmw_ttm_bind,
|
|
.unbind = vmw_ttm_unbind,
|
|
.destroy = vmw_ttm_destroy,
|
|
};
|
|
|
|
struct ttm_backend *vmw_ttm_backend_init(struct ttm_bo_device *bdev)
|
|
{
|
|
struct vmw_ttm_backend *vmw_be;
|
|
|
|
vmw_be = kmalloc(sizeof(*vmw_be), GFP_KERNEL);
|
|
if (!vmw_be)
|
|
return NULL;
|
|
|
|
vmw_be->backend.func = &vmw_ttm_func;
|
|
vmw_be->dev_priv = container_of(bdev, struct vmw_private, bdev);
|
|
|
|
return &vmw_be->backend;
|
|
}
|
|
|
|
int vmw_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
|
|
struct ttm_mem_type_manager *man)
|
|
{
|
|
switch (type) {
|
|
case TTM_PL_SYSTEM:
|
|
/* System memory */
|
|
|
|
man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
|
|
man->available_caching = TTM_PL_FLAG_CACHED;
|
|
man->default_caching = TTM_PL_FLAG_CACHED;
|
|
break;
|
|
case TTM_PL_VRAM:
|
|
/* "On-card" video ram */
|
|
man->func = &ttm_bo_manager_func;
|
|
man->gpu_offset = 0;
|
|
man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE;
|
|
man->available_caching = TTM_PL_FLAG_CACHED;
|
|
man->default_caching = TTM_PL_FLAG_CACHED;
|
|
break;
|
|
case VMW_PL_GMR:
|
|
/*
|
|
* "Guest Memory Regions" is an aperture like feature with
|
|
* one slot per bo. There is an upper limit of the number of
|
|
* slots as well as the bo size.
|
|
*/
|
|
man->func = &vmw_gmrid_manager_func;
|
|
man->gpu_offset = 0;
|
|
man->flags = TTM_MEMTYPE_FLAG_CMA | TTM_MEMTYPE_FLAG_MAPPABLE;
|
|
man->available_caching = TTM_PL_FLAG_CACHED;
|
|
man->default_caching = TTM_PL_FLAG_CACHED;
|
|
break;
|
|
default:
|
|
DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void vmw_evict_flags(struct ttm_buffer_object *bo,
|
|
struct ttm_placement *placement)
|
|
{
|
|
*placement = vmw_sys_placement;
|
|
}
|
|
|
|
/**
|
|
* FIXME: Proper access checks on buffers.
|
|
*/
|
|
|
|
static int vmw_verify_access(struct ttm_buffer_object *bo, struct file *filp)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int vmw_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
|
|
{
|
|
struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
|
|
struct vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev);
|
|
|
|
mem->bus.addr = NULL;
|
|
mem->bus.is_iomem = false;
|
|
mem->bus.offset = 0;
|
|
mem->bus.size = mem->num_pages << PAGE_SHIFT;
|
|
mem->bus.base = 0;
|
|
if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
|
|
return -EINVAL;
|
|
switch (mem->mem_type) {
|
|
case TTM_PL_SYSTEM:
|
|
case VMW_PL_GMR:
|
|
return 0;
|
|
case TTM_PL_VRAM:
|
|
mem->bus.offset = mem->start << PAGE_SHIFT;
|
|
mem->bus.base = dev_priv->vram_start;
|
|
mem->bus.is_iomem = true;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void vmw_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
|
|
{
|
|
}
|
|
|
|
static int vmw_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* FIXME: We're using the old vmware polling method to sync.
|
|
* Do this with fences instead.
|
|
*/
|
|
|
|
static void *vmw_sync_obj_ref(void *sync_obj)
|
|
{
|
|
return sync_obj;
|
|
}
|
|
|
|
static void vmw_sync_obj_unref(void **sync_obj)
|
|
{
|
|
*sync_obj = NULL;
|
|
}
|
|
|
|
static int vmw_sync_obj_flush(void *sync_obj, void *sync_arg)
|
|
{
|
|
struct vmw_private *dev_priv = (struct vmw_private *)sync_arg;
|
|
|
|
mutex_lock(&dev_priv->hw_mutex);
|
|
vmw_write(dev_priv, SVGA_REG_SYNC, SVGA_SYNC_GENERIC);
|
|
mutex_unlock(&dev_priv->hw_mutex);
|
|
return 0;
|
|
}
|
|
|
|
static bool vmw_sync_obj_signaled(void *sync_obj, void *sync_arg)
|
|
{
|
|
struct vmw_private *dev_priv = (struct vmw_private *)sync_arg;
|
|
uint32_t sequence = (unsigned long) sync_obj;
|
|
|
|
return vmw_fence_signaled(dev_priv, sequence);
|
|
}
|
|
|
|
static int vmw_sync_obj_wait(void *sync_obj, void *sync_arg,
|
|
bool lazy, bool interruptible)
|
|
{
|
|
struct vmw_private *dev_priv = (struct vmw_private *)sync_arg;
|
|
uint32_t sequence = (unsigned long) sync_obj;
|
|
|
|
return vmw_wait_fence(dev_priv, false, sequence, false, 3*HZ);
|
|
}
|
|
|
|
struct ttm_bo_driver vmw_bo_driver = {
|
|
.create_ttm_backend_entry = vmw_ttm_backend_init,
|
|
.invalidate_caches = vmw_invalidate_caches,
|
|
.init_mem_type = vmw_init_mem_type,
|
|
.evict_flags = vmw_evict_flags,
|
|
.move = NULL,
|
|
.verify_access = vmw_verify_access,
|
|
.sync_obj_signaled = vmw_sync_obj_signaled,
|
|
.sync_obj_wait = vmw_sync_obj_wait,
|
|
.sync_obj_flush = vmw_sync_obj_flush,
|
|
.sync_obj_unref = vmw_sync_obj_unref,
|
|
.sync_obj_ref = vmw_sync_obj_ref,
|
|
.move_notify = NULL,
|
|
.swap_notify = NULL,
|
|
.fault_reserve_notify = &vmw_ttm_fault_reserve_notify,
|
|
.io_mem_reserve = &vmw_ttm_io_mem_reserve,
|
|
.io_mem_free = &vmw_ttm_io_mem_free,
|
|
};
|