Lines Matching defs:bmp
14 int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num)
19 spin_lock_irqsave(&bmp->lock, flags);
21 offset = bitmap_find_next_zero_area(bmp->bitmap, bmp->irq_count, 0,
23 if (offset > bmp->irq_count)
26 bitmap_set(bmp->bitmap, offset, num);
27 spin_unlock_irqrestore(&bmp->lock, flags);
33 spin_unlock_irqrestore(&bmp->lock, flags);
38 void msi_bitmap_free_hwirqs(struct msi_bitmap *bmp, unsigned int offset,
46 spin_lock_irqsave(&bmp->lock, flags);
47 bitmap_clear(bmp->bitmap, offset, num);
48 spin_unlock_irqrestore(&bmp->lock, flags);
52 void msi_bitmap_reserve_hwirq(struct msi_bitmap *bmp, unsigned int hwirq)
58 spin_lock_irqsave(&bmp->lock, flags);
59 bitmap_allocate_region(bmp->bitmap, hwirq, 0);
60 spin_unlock_irqrestore(&bmp->lock, flags);
65 * @bmp: pointer to the MSI bitmap.
74 int msi_bitmap_reserve_dt_hwirqs(struct msi_bitmap *bmp)
79 if (!bmp->of_node)
82 p = of_get_property(bmp->of_node, "msi-available-ranges", &len);
85 "found on %pOF\n", bmp->of_node);
91 " property on %pOF\n", bmp->of_node);
95 bitmap_allocate_region(bmp->bitmap, 0, get_count_order(bmp->irq_count));
97 spin_lock(&bmp->lock);
103 bitmap_release_region(bmp->bitmap, *p + j, 0);
106 spin_unlock(&bmp->lock);
111 int __ref msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
122 bmp->bitmap_from_slab = slab_is_available();
123 if (bmp->bitmap_from_slab)
124 bmp->bitmap = kzalloc(size, GFP_KERNEL);
126 bmp->bitmap = memblock_alloc(size, SMP_CACHE_BYTES);
127 if (!bmp->bitmap)
131 kmemleak_not_leak(bmp->bitmap);
134 if (!bmp->bitmap) {
140 spin_lock_init(&bmp->lock);
141 bmp->of_node = of_node_get(of_node);
142 bmp->irq_count = irq_count;
147 void msi_bitmap_free(struct msi_bitmap *bmp)
149 if (bmp->bitmap_from_slab)
150 kfree(bmp->bitmap);
151 of_node_put(bmp->of_node);
152 bmp->bitmap = NULL;
159 struct msi_bitmap bmp;
163 WARN_ON(msi_bitmap_alloc(&bmp, 0, NULL) == 0);
166 WARN_ON(msi_bitmap_alloc(&bmp, size, NULL));
169 WARN_ON(bitmap_find_free_region(bmp.bitmap, size, get_count_order(size)));
170 bitmap_release_region(bmp.bitmap, 0, get_count_order(size));
173 WARN_ON(msi_bitmap_reserve_dt_hwirqs(&bmp) <= 0);
176 WARN_ON(bitmap_find_free_region(bmp.bitmap, size, get_count_order(size)));
177 bitmap_release_region(bmp.bitmap, 0, get_count_order(size));
181 WARN_ON(msi_bitmap_alloc_hwirqs(&bmp, 1) < 0);
183 WARN_ON(msi_bitmap_alloc_hwirqs(&bmp, 1) >= 0);
186 WARN_ON(bitmap_find_free_region(bmp.bitmap, size, 0) >= 0);
189 msi_bitmap_free_hwirqs(&bmp, size / 2, 1);
190 WARN_ON(msi_bitmap_alloc_hwirqs(&bmp, 1) != size / 2);
193 msi_bitmap_free_hwirqs(&bmp, 3, size - 3);
196 rc = msi_bitmap_alloc_hwirqs(&bmp, 2);
198 rc = msi_bitmap_alloc_hwirqs(&bmp, 4);
200 rc = msi_bitmap_alloc_hwirqs(&bmp, 8);
202 rc = msi_bitmap_alloc_hwirqs(&bmp, 9);
204 rc = msi_bitmap_alloc_hwirqs(&bmp, 3);
206 rc = msi_bitmap_alloc_hwirqs(&bmp, 7);
208 rc = msi_bitmap_alloc_hwirqs(&bmp, 121);
211 msi_bitmap_free(&bmp);
214 WARN_ON(bmp.bitmap != NULL);
225 struct msi_bitmap bmp;
234 WARN_ON(msi_bitmap_alloc(&bmp, SIZE_EXPECTED, &of_node));
237 WARN_ON(msi_bitmap_reserve_dt_hwirqs(&bmp) <= 0);
240 WARN_ON(bitmap_find_free_region(bmp.bitmap, SIZE_EXPECTED,
242 bitmap_release_region(bmp.bitmap, 0, get_count_order(SIZE_EXPECTED));
255 WARN_ON(msi_bitmap_reserve_dt_hwirqs(&bmp));
259 WARN_ON(!bitmap_equal(expected, bmp.bitmap, SIZE_EXPECTED));
261 msi_bitmap_free(&bmp);
262 kfree(bmp.bitmap);