kolibrios/drivers/video/drm/radeon/radeon_ttm.c

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/*
* Copyright 2009 Jerome Glisse.
* 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 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*/
/*
* Authors:
* Jerome Glisse <glisse@freedesktop.org>
* Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
* Dave Airlie
*/
#include <ttm/ttm_bo_api.h>
#include <ttm/ttm_bo_driver.h>
#include <ttm/ttm_placement.h>
#include <ttm/ttm_module.h>
#include <drm/drmP.h>
#include <drm/radeon_drm.h>
#include <linux/seq_file.h>
#include "radeon_reg.h"
#include "radeon.h"
#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
static int radeon_ttm_debugfs_init(struct radeon_device *rdev);
static struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev)
{
struct radeon_mman *mman;
struct radeon_device *rdev;
mman = container_of(bdev, struct radeon_mman, bdev);
rdev = container_of(mman, struct radeon_device, mman);
return rdev;
}
/*
* Global memory.
*/
static int radeon_ttm_mem_global_init(struct ttm_global_reference *ref)
{
return ttm_mem_global_init(ref->object);
}
static void radeon_ttm_mem_global_release(struct ttm_global_reference *ref)
{
ttm_mem_global_release(ref->object);
}
static int radeon_ttm_global_init(struct radeon_device *rdev)
{
struct ttm_global_reference *global_ref;
int r;
rdev->mman.mem_global_referenced = false;
global_ref = &rdev->mman.mem_global_ref;
global_ref->global_type = TTM_GLOBAL_TTM_MEM;
global_ref->size = sizeof(struct ttm_mem_global);
global_ref->init = &radeon_ttm_mem_global_init;
global_ref->release = &radeon_ttm_mem_global_release;
r = ttm_global_item_ref(global_ref);
if (r != 0) {
DRM_ERROR("Failed setting up TTM memory accounting "
"subsystem.\n");
return r;
}
rdev->mman.bo_global_ref.mem_glob =
rdev->mman.mem_global_ref.object;
global_ref = &rdev->mman.bo_global_ref.ref;
global_ref->global_type = TTM_GLOBAL_TTM_BO;
global_ref->size = sizeof(struct ttm_bo_global);
global_ref->init = &ttm_bo_global_init;
global_ref->release = &ttm_bo_global_release;
r = ttm_global_item_ref(global_ref);
if (r != 0) {
DRM_ERROR("Failed setting up TTM BO subsystem.\n");
ttm_global_item_unref(&rdev->mman.mem_global_ref);
return r;
}
rdev->mman.mem_global_referenced = true;
return 0;
}
struct ttm_backend *radeon_ttm_backend_create(struct radeon_device *rdev);
static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
struct ttm_mem_type_manager *man)
{
struct radeon_device *rdev;
rdev = radeon_get_rdev(bdev);
switch (type) {
case TTM_PL_SYSTEM:
/* System memory */
man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
man->available_caching = TTM_PL_MASK_CACHING;
man->default_caching = TTM_PL_FLAG_CACHED;
break;
case TTM_PL_TT:
man->gpu_offset = rdev->mc.gtt_location;
man->available_caching = TTM_PL_MASK_CACHING;
man->default_caching = TTM_PL_FLAG_CACHED;
man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
#if __OS_HAS_AGP
if (rdev->flags & RADEON_IS_AGP) {
if (!(drm_core_has_AGP(rdev->ddev) && rdev->ddev->agp)) {
DRM_ERROR("AGP is not enabled for memory type %u\n",
(unsigned)type);
return -EINVAL;
}
man->io_offset = rdev->mc.agp_base;
man->io_size = rdev->mc.gtt_size;
man->io_addr = NULL;
if (!rdev->ddev->agp->cant_use_aperture)
man->flags = TTM_MEMTYPE_FLAG_NEEDS_IOREMAP |
TTM_MEMTYPE_FLAG_MAPPABLE;
man->available_caching = TTM_PL_FLAG_UNCACHED |
TTM_PL_FLAG_WC;
man->default_caching = TTM_PL_FLAG_WC;
} else
#endif
{
man->io_offset = 0;
man->io_size = 0;
man->io_addr = NULL;
}
break;
case TTM_PL_VRAM:
/* "On-card" video ram */
man->gpu_offset = rdev->mc.vram_location;
man->flags = TTM_MEMTYPE_FLAG_FIXED |
TTM_MEMTYPE_FLAG_NEEDS_IOREMAP |
TTM_MEMTYPE_FLAG_MAPPABLE;
man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
man->default_caching = TTM_PL_FLAG_WC;
man->io_addr = NULL;
man->io_offset = rdev->mc.aper_base;
man->io_size = rdev->mc.aper_size;
break;
default:
DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
return -EINVAL;
}
return 0;
}
static struct ttm_bo_driver radeon_bo_driver = {
// .create_ttm_backend_entry = &radeon_create_ttm_backend_entry,
// .invalidate_caches = &radeon_invalidate_caches,
.init_mem_type = &radeon_init_mem_type,
// .evict_flags = &radeon_evict_flags,
// .move = &radeon_bo_move,
// .verify_access = &radeon_verify_access,
// .sync_obj_signaled = &radeon_sync_obj_signaled,
// .sync_obj_wait = &radeon_sync_obj_wait,
// .sync_obj_flush = &radeon_sync_obj_flush,
// .sync_obj_unref = &radeon_sync_obj_unref,
// .sync_obj_ref = &radeon_sync_obj_ref,
// .move_notify = &radeon_bo_move_notify,
// .fault_reserve_notify = &radeon_bo_fault_reserve_notify,
};
int radeon_ttm_init(struct radeon_device *rdev)
{
int r;
r = radeon_ttm_global_init(rdev);
if (r) {
return r;
}
/* No others user of address space so set it to 0 */
r = ttm_bo_device_init(&rdev->mman.bdev,
rdev->mman.bo_global_ref.ref.object,
&radeon_bo_driver, DRM_FILE_PAGE_OFFSET,
rdev->need_dma32);
if (r) {
DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
return r;
}
rdev->mman.initialized = true;
r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_VRAM,
rdev->mc.real_vram_size >> PAGE_SHIFT);
if (r) {
DRM_ERROR("Failed initializing VRAM heap.\n");
return r;
}
r = radeon_bo_create(rdev, NULL, 256 * 1024, true,
RADEON_GEM_DOMAIN_VRAM,
&rdev->stollen_vga_memory);
if (r) {
return r;
}
r = radeon_bo_reserve(rdev->stollen_vga_memory, false);
if (r)
return r;
r = radeon_bo_pin(rdev->stollen_vga_memory, RADEON_GEM_DOMAIN_VRAM, NULL);
radeon_bo_unreserve(rdev->stollen_vga_memory);
if (r) {
radeon_bo_unref(&rdev->stollen_vga_memory);
return r;
}
DRM_INFO("radeon: %uM of VRAM memory ready\n",
(unsigned)rdev->mc.real_vram_size / (1024 * 1024));
r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT,
rdev->mc.gtt_size >> PAGE_SHIFT);
if (r) {
DRM_ERROR("Failed initializing GTT heap.\n");
return r;
}
DRM_INFO("radeon: %uM of GTT memory ready.\n",
(unsigned)(rdev->mc.gtt_size / (1024 * 1024)));
if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) {
rdev->mman.bdev.dev_mapping = rdev->ddev->dev_mapping;
}
r = radeon_ttm_debugfs_init(rdev);
if (r) {
DRM_ERROR("Failed to init debugfs\n");
return r;
}
return 0;
}
static struct vm_operations_struct radeon_ttm_vm_ops;
static const struct vm_operations_struct *ttm_vm_ops = NULL;