1 files changed, 84 insertions, 38 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index d031b6863082..e9918d88f5b0 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -33,6 +33,7 @@
 #include <ttm/ttm_bo_driver.h>
 #include <ttm/ttm_placement.h>
 #include <ttm/ttm_module.h>
+#include <ttm/ttm_page_alloc.h>
 #include <drm/drmP.h>
 #include <drm/radeon_drm.h>
 #include <linux/seq_file.h>
@@ -162,34 +163,21 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
                                           (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->flags = 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;
                 }
+#endif
                 break;
         case TTM_PL_VRAM:
                 /* "On-card" video ram */
                 man->gpu_offset = rdev->mc.vram_start;
                 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);
@@ -244,9 +232,9 @@ static void radeon_move_null(struct ttm_buffer_object *bo,
 }
 
 static int radeon_move_blit(struct ttm_buffer_object *bo,
-                            bool evict, int no_wait,
-                            struct ttm_mem_reg *new_mem,
-                            struct ttm_mem_reg *old_mem)
+                        bool evict, int no_wait_reserve, bool no_wait_gpu,
+                        struct ttm_mem_reg *new_mem,
+                        struct ttm_mem_reg *old_mem)
 {
         struct radeon_device *rdev;
         uint64_t old_start, new_start;
@@ -290,13 +278,14 @@ static int radeon_move_blit(struct ttm_buffer_object *bo,
         r = radeon_copy(rdev, old_start, new_start, new_mem->num_pages, fence);
         /* FIXME: handle copy error */
         r = ttm_bo_move_accel_cleanup(bo, (void *)fence, NULL,
-                                      evict, no_wait, new_mem);
+                                      evict, no_wait_reserve, no_wait_gpu, new_mem);
         radeon_fence_unref(&fence);
         return r;
 }
 
 static int radeon_move_vram_ram(struct ttm_buffer_object *bo,
-                                bool evict, bool interruptible, bool no_wait,
+                                bool evict, bool interruptible,
+                                bool no_wait_reserve, bool no_wait_gpu,
                                 struct ttm_mem_reg *new_mem)
 {
         struct radeon_device *rdev;
@@ -317,7 +306,7 @@ static int radeon_move_vram_ram(struct ttm_buffer_object *bo,
         placement.busy_placement = &placements;
         placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
         r = ttm_bo_mem_space(bo, &placement, &tmp_mem,
-                             interruptible, no_wait);
+                             interruptible, no_wait_reserve, no_wait_gpu);
         if (unlikely(r)) {
                 return r;
         }
@@ -331,11 +320,11 @@ static int radeon_move_vram_ram(struct ttm_buffer_object *bo,
         if (unlikely(r)) {
                 goto out_cleanup;
         }
-        r = radeon_move_blit(bo, true, no_wait, &tmp_mem, old_mem);
+        r = radeon_move_blit(bo, true, no_wait_reserve, no_wait_gpu, &tmp_mem, old_mem);
         if (unlikely(r)) {
                 goto out_cleanup;
         }
-        r = ttm_bo_move_ttm(bo, true, no_wait, new_mem);
+        r = ttm_bo_move_ttm(bo, true, no_wait_reserve, no_wait_gpu, new_mem);
 out_cleanup:
         if (tmp_mem.mm_node) {
                 struct ttm_bo_global *glob = rdev->mman.bdev.glob;
@@ -349,7 +338,8 @@ out_cleanup:
 }
 
 static int radeon_move_ram_vram(struct ttm_buffer_object *bo,
-                                bool evict, bool interruptible, bool no_wait,
+                                bool evict, bool interruptible,
+                                bool no_wait_reserve, bool no_wait_gpu,
                                 struct ttm_mem_reg *new_mem)
 {
         struct radeon_device *rdev;
@@ -369,15 +359,15 @@ static int radeon_move_ram_vram(struct ttm_buffer_object *bo,
         placement.num_busy_placement = 1;
         placement.busy_placement = &placements;
         placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
-        r = ttm_bo_mem_space(bo, &placement, &tmp_mem, interruptible, no_wait);
+        r = ttm_bo_mem_space(bo, &placement, &tmp_mem, interruptible, no_wait_reserve, no_wait_gpu);
         if (unlikely(r)) {
                 return r;
         }
-        r = ttm_bo_move_ttm(bo, true, no_wait, &tmp_mem);
+        r = ttm_bo_move_ttm(bo, true, no_wait_reserve, no_wait_gpu, &tmp_mem);
         if (unlikely(r)) {
                 goto out_cleanup;
         }
-        r = radeon_move_blit(bo, true, no_wait, new_mem, old_mem);
+        r = radeon_move_blit(bo, true, no_wait_reserve, no_wait_gpu, new_mem, old_mem);
         if (unlikely(r)) {
                 goto out_cleanup;
         }
@@ -394,8 +384,9 @@ out_cleanup:
 }
 
 static int radeon_bo_move(struct ttm_buffer_object *bo,
-                          bool evict, bool interruptible, bool no_wait,
-                          struct ttm_mem_reg *new_mem)
+                        bool evict, bool interruptible,
+                        bool no_wait_reserve, bool no_wait_gpu,
+                        struct ttm_mem_reg *new_mem)
 {
         struct radeon_device *rdev;
         struct ttm_mem_reg *old_mem = &bo->mem;
@@ -422,23 +413,66 @@ static int radeon_bo_move(struct ttm_buffer_object *bo,
         if (old_mem->mem_type == TTM_PL_VRAM &&
             new_mem->mem_type == TTM_PL_SYSTEM) {
                 r = radeon_move_vram_ram(bo, evict, interruptible,
-                                            no_wait, new_mem);
+                                        no_wait_reserve, no_wait_gpu, new_mem);
         } else if (old_mem->mem_type == TTM_PL_SYSTEM &&
                    new_mem->mem_type == TTM_PL_VRAM) {
                 r = radeon_move_ram_vram(bo, evict, interruptible,
-                                            no_wait, new_mem);
+                                            no_wait_reserve, no_wait_gpu, new_mem);
         } else {
-                r = radeon_move_blit(bo, evict, no_wait, new_mem, old_mem);
+                r = radeon_move_blit(bo, evict, no_wait_reserve, no_wait_gpu, new_mem, old_mem);
         }
 
         if (r) {
 memcpy:
-                r = ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+                r = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
         }
-
         return r;
 }
 
+static int radeon_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 radeon_device *rdev = radeon_get_rdev(bdev);
+
+        mem->bus.addr = NULL;
+        mem->bus.offset = 0;
+        mem->bus.size = mem->num_pages << PAGE_SHIFT;
+        mem->bus.base = 0;
+        mem->bus.is_iomem = false;
+        if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
+                return -EINVAL;
+        switch (mem->mem_type) {
+        case TTM_PL_SYSTEM:
+                /* system memory */
+                return 0;
+        case TTM_PL_TT:
+#if __OS_HAS_AGP
+                if (rdev->flags & RADEON_IS_AGP) {
+                        /* RADEON_IS_AGP is set only if AGP is active */
+                        mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
+                        mem->bus.base = rdev->mc.agp_base;
+                        mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
+                }
+#endif
+                break;
+        case TTM_PL_VRAM:
+                mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
+                /* check if it's visible */
+                if ((mem->bus.offset + mem->bus.size) > rdev->mc.visible_vram_size)
+                        return -EINVAL;
+                mem->bus.base = rdev->mc.aper_base;
+                mem->bus.is_iomem = true;
+                break;
+        default:
+                return -EINVAL;
+        }
+        return 0;
+}
+
+static void radeon_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
+{
+}
+
 static int radeon_sync_obj_wait(void *sync_obj, void *sync_arg,
                                 bool lazy, bool interruptible)
 {
@@ -479,6 +513,8 @@ static struct ttm_bo_driver radeon_bo_driver = {
         .sync_obj_ref = &radeon_sync_obj_ref,
         .move_notify = &radeon_bo_move_notify,
         .fault_reserve_notify = &radeon_bo_fault_reserve_notify,
+        .io_mem_reserve = &radeon_ttm_io_mem_reserve,
+        .io_mem_free = &radeon_ttm_io_mem_free,
 };
 
 int radeon_ttm_init(struct radeon_device *rdev)
@@ -571,13 +607,17 @@ static const struct vm_operations_struct *ttm_vm_ops = NULL;
 static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
         struct ttm_buffer_object *bo;
+        struct radeon_device *rdev;
         int r;
 
-        bo = (struct ttm_buffer_object *)vma->vm_private_data;
+        bo = (struct ttm_buffer_object *)vma->vm_private_data;  
         if (bo == NULL) {
                 return VM_FAULT_NOPAGE;
         }
+        rdev = radeon_get_rdev(bo->bdev);
+        mutex_lock(&rdev->vram_mutex);
         r = ttm_vm_ops->fault(vma, vmf);
+        mutex_unlock(&rdev->vram_mutex);
         return r;
 }
 
@@ -745,8 +785,8 @@ static int radeon_mm_dump_table(struct seq_file *m, void *data)
 static int radeon_ttm_debugfs_init(struct radeon_device *rdev)
 {
 #if defined(CONFIG_DEBUG_FS)
-        static struct drm_info_list radeon_mem_types_list[RADEON_DEBUGFS_MEM_TYPES];
-        static char radeon_mem_types_names[RADEON_DEBUGFS_MEM_TYPES][32];
+        static struct drm_info_list radeon_mem_types_list[RADEON_DEBUGFS_MEM_TYPES+1];
+        static char radeon_mem_types_names[RADEON_DEBUGFS_MEM_TYPES+1][32];
         unsigned i;
 
         for (i = 0; i < RADEON_DEBUGFS_MEM_TYPES; i++) {
@@ -763,7 +803,13 @@ static int radeon_ttm_debugfs_init(struct radeon_device *rdev)
                         radeon_mem_types_list[i].data = &rdev->mman.bdev.man[TTM_PL_TT].manager;
 
         }
-        return radeon_debugfs_add_files(rdev, radeon_mem_types_list, RADEON_DEBUGFS_MEM_TYPES);
+        /* Add ttm page pool to debugfs */
+        sprintf(radeon_mem_types_names[i], "ttm_page_pool");
+        radeon_mem_types_list[i].name = radeon_mem_types_names[i];
+        radeon_mem_types_list[i].show = &ttm_page_alloc_debugfs;
+        radeon_mem_types_list[i].driver_features = 0;
+        radeon_mem_types_list[i].data = NULL;
+        return radeon_debugfs_add_files(rdev, radeon_mem_types_list, RADEON_DEBUGFS_MEM_TYPES+1);
 
 #endif
         return 0;