summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/nouveau/nouveau_mem.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_mem.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_mem.c572
1 files changed, 572 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
new file mode 100644
index 000000000000..5158a12f7844
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -0,0 +1,572 @@
+/*
+ * Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
+ * Copyright 2005 Stephane Marchesin
+ *
+ * The Weather Channel (TM) funded Tungsten Graphics to develop the
+ * initial release of the Radeon 8500 driver under the XFree86 license.
+ * This notice must be preserved.
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS AND/OR THEIR 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.
+ *
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+
+#include "drmP.h"
+#include "drm.h"
+#include "drm_sarea.h"
+#include "nouveau_drv.h"
+
+static struct mem_block *
+split_block(struct mem_block *p, uint64_t start, uint64_t size,
+ struct drm_file *file_priv)
+{
+ /* Maybe cut off the start of an existing block */
+ if (start > p->start) {
+ struct mem_block *newblock =
+ kmalloc(sizeof(*newblock), GFP_KERNEL);
+ if (!newblock)
+ goto out;
+ newblock->start = start;
+ newblock->size = p->size - (start - p->start);
+ newblock->file_priv = NULL;
+ newblock->next = p->next;
+ newblock->prev = p;
+ p->next->prev = newblock;
+ p->next = newblock;
+ p->size -= newblock->size;
+ p = newblock;
+ }
+
+ /* Maybe cut off the end of an existing block */
+ if (size < p->size) {
+ struct mem_block *newblock =
+ kmalloc(sizeof(*newblock), GFP_KERNEL);
+ if (!newblock)
+ goto out;
+ newblock->start = start + size;
+ newblock->size = p->size - size;
+ newblock->file_priv = NULL;
+ newblock->next = p->next;
+ newblock->prev = p;
+ p->next->prev = newblock;
+ p->next = newblock;
+ p->size = size;
+ }
+
+out:
+ /* Our block is in the middle */
+ p->file_priv = file_priv;
+ return p;
+}
+
+struct mem_block *
+nouveau_mem_alloc_block(struct mem_block *heap, uint64_t size,
+ int align2, struct drm_file *file_priv, int tail)
+{
+ struct mem_block *p;
+ uint64_t mask = (1 << align2) - 1;
+
+ if (!heap)
+ return NULL;
+
+ if (tail) {
+ list_for_each_prev(p, heap) {
+ uint64_t start = ((p->start + p->size) - size) & ~mask;
+
+ if (p->file_priv == NULL && start >= p->start &&
+ start + size <= p->start + p->size)
+ return split_block(p, start, size, file_priv);
+ }
+ } else {
+ list_for_each(p, heap) {
+ uint64_t start = (p->start + mask) & ~mask;
+
+ if (p->file_priv == NULL &&
+ start + size <= p->start + p->size)
+ return split_block(p, start, size, file_priv);
+ }
+ }
+
+ return NULL;
+}
+
+void nouveau_mem_free_block(struct mem_block *p)
+{
+ p->file_priv = NULL;
+
+ /* Assumes a single contiguous range. Needs a special file_priv in
+ * 'heap' to stop it being subsumed.
+ */
+ if (p->next->file_priv == NULL) {
+ struct mem_block *q = p->next;
+ p->size += q->size;
+ p->next = q->next;
+ p->next->prev = p;
+ kfree(q);
+ }
+
+ if (p->prev->file_priv == NULL) {
+ struct mem_block *q = p->prev;
+ q->size += p->size;
+ q->next = p->next;
+ q->next->prev = q;
+ kfree(p);
+ }
+}
+
+/* Initialize. How to check for an uninitialized heap?
+ */
+int nouveau_mem_init_heap(struct mem_block **heap, uint64_t start,
+ uint64_t size)
+{
+ struct mem_block *blocks = kmalloc(sizeof(*blocks), GFP_KERNEL);
+
+ if (!blocks)
+ return -ENOMEM;
+
+ *heap = kmalloc(sizeof(**heap), GFP_KERNEL);
+ if (!*heap) {
+ kfree(blocks);
+ return -ENOMEM;
+ }
+
+ blocks->start = start;
+ blocks->size = size;
+ blocks->file_priv = NULL;
+ blocks->next = blocks->prev = *heap;
+
+ memset(*heap, 0, sizeof(**heap));
+ (*heap)->file_priv = (struct drm_file *) -1;
+ (*heap)->next = (*heap)->prev = blocks;
+ return 0;
+}
+
+/*
+ * Free all blocks associated with the releasing file_priv
+ */
+void nouveau_mem_release(struct drm_file *file_priv, struct mem_block *heap)
+{
+ struct mem_block *p;
+
+ if (!heap || !heap->next)
+ return;
+
+ list_for_each(p, heap) {
+ if (p->file_priv == file_priv)
+ p->file_priv = NULL;
+ }
+
+ /* Assumes a single contiguous range. Needs a special file_priv in
+ * 'heap' to stop it being subsumed.
+ */
+ list_for_each(p, heap) {
+ while ((p->file_priv == NULL) &&
+ (p->next->file_priv == NULL) &&
+ (p->next != heap)) {
+ struct mem_block *q = p->next;
+ p->size += q->size;
+ p->next = q->next;
+ p->next->prev = p;
+ kfree(q);
+ }
+ }
+}
+
+/*
+ * NV50 VM helpers
+ */
+int
+nv50_mem_vm_bind_linear(struct drm_device *dev, uint64_t virt, uint32_t size,
+ uint32_t flags, uint64_t phys)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_gpuobj **pgt;
+ unsigned psz, pfl, pages;
+
+ if (virt >= dev_priv->vm_gart_base &&
+ (virt + size) < (dev_priv->vm_gart_base + dev_priv->vm_gart_size)) {
+ psz = 12;
+ pgt = &dev_priv->gart_info.sg_ctxdma;
+ pfl = 0x21;
+ virt -= dev_priv->vm_gart_base;
+ } else
+ if (virt >= dev_priv->vm_vram_base &&
+ (virt + size) < (dev_priv->vm_vram_base + dev_priv->vm_vram_size)) {
+ psz = 16;
+ pgt = dev_priv->vm_vram_pt;
+ pfl = 0x01;
+ virt -= dev_priv->vm_vram_base;
+ } else {
+ NV_ERROR(dev, "Invalid address: 0x%16llx-0x%16llx\n",
+ virt, virt + size - 1);
+ return -EINVAL;
+ }
+
+ pages = size >> psz;
+
+ dev_priv->engine.instmem.prepare_access(dev, true);
+ if (flags & 0x80000000) {
+ while (pages--) {
+ struct nouveau_gpuobj *pt = pgt[virt >> 29];
+ unsigned pte = ((virt & 0x1fffffffULL) >> psz) << 1;
+
+ nv_wo32(dev, pt, pte++, 0x00000000);
+ nv_wo32(dev, pt, pte++, 0x00000000);
+
+ virt += (1 << psz);
+ }
+ } else {
+ while (pages--) {
+ struct nouveau_gpuobj *pt = pgt[virt >> 29];
+ unsigned pte = ((virt & 0x1fffffffULL) >> psz) << 1;
+ unsigned offset_h = upper_32_bits(phys) & 0xff;
+ unsigned offset_l = lower_32_bits(phys);
+
+ nv_wo32(dev, pt, pte++, offset_l | pfl);
+ nv_wo32(dev, pt, pte++, offset_h | flags);
+
+ phys += (1 << psz);
+ virt += (1 << psz);
+ }
+ }
+ dev_priv->engine.instmem.finish_access(dev);
+
+ nv_wr32(dev, 0x100c80, 0x00050001);
+ if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) {
+ NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n");
+ NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80));
+ return -EBUSY;
+ }
+
+ nv_wr32(dev, 0x100c80, 0x00000001);
+ if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) {
+ NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n");
+ NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80));
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+void
+nv50_mem_vm_unbind(struct drm_device *dev, uint64_t virt, uint32_t size)
+{
+ nv50_mem_vm_bind_linear(dev, virt, size, 0x80000000, 0);
+}
+
+/*
+ * Cleanup everything
+ */
+void nouveau_mem_takedown(struct mem_block **heap)
+{
+ struct mem_block *p;
+
+ if (!*heap)
+ return;
+
+ for (p = (*heap)->next; p != *heap;) {
+ struct mem_block *q = p;
+ p = p->next;
+ kfree(q);
+ }
+
+ kfree(*heap);
+ *heap = NULL;
+}
+
+void nouveau_mem_close(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+ if (dev_priv->ttm.bdev.man[TTM_PL_PRIV0].has_type)
+ ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_PRIV0);
+ ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_VRAM);
+
+ ttm_bo_device_release(&dev_priv->ttm.bdev);
+
+ nouveau_ttm_global_release(dev_priv);
+
+ if (drm_core_has_AGP(dev) && dev->agp &&
+ drm_core_check_feature(dev, DRIVER_MODESET)) {
+ struct drm_agp_mem *entry, *tempe;
+
+ /* Remove AGP resources, but leave dev->agp
+ intact until drv_cleanup is called. */
+ list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
+ if (entry->bound)
+ drm_unbind_agp(entry->memory);
+ drm_free_agp(entry->memory, entry->pages);
+ kfree(entry);
+ }
+ INIT_LIST_HEAD(&dev->agp->memory);
+
+ if (dev->agp->acquired)
+ drm_agp_release(dev);
+
+ dev->agp->acquired = 0;
+ dev->agp->enabled = 0;
+ }
+
+ if (dev_priv->fb_mtrr) {
+ drm_mtrr_del(dev_priv->fb_mtrr, drm_get_resource_start(dev, 1),
+ drm_get_resource_len(dev, 1), DRM_MTRR_WC);
+ dev_priv->fb_mtrr = 0;
+ }
+}
+
+/*XXX won't work on BSD because of pci_read_config_dword */
+static uint32_t
+nouveau_mem_fb_amount_igp(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct pci_dev *bridge;
+ uint32_t mem;
+
+ bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 1));
+ if (!bridge) {
+ NV_ERROR(dev, "no bridge device\n");
+ return 0;
+ }
+
+ if (dev_priv->flags&NV_NFORCE) {
+ pci_read_config_dword(bridge, 0x7C, &mem);
+ return (uint64_t)(((mem >> 6) & 31) + 1)*1024*1024;
+ } else
+ if (dev_priv->flags&NV_NFORCE2) {
+ pci_read_config_dword(bridge, 0x84, &mem);
+ return (uint64_t)(((mem >> 4) & 127) + 1)*1024*1024;
+ }
+
+ NV_ERROR(dev, "impossible!\n");
+ return 0;
+}
+
+/* returns the amount of FB ram in bytes */
+uint64_t nouveau_mem_fb_amount(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ uint32_t boot0;
+
+ switch (dev_priv->card_type) {
+ case NV_04:
+ boot0 = nv_rd32(dev, NV03_BOOT_0);
+ if (boot0 & 0x00000100)
+ return (((boot0 >> 12) & 0xf) * 2 + 2) * 1024 * 1024;
+
+ switch (boot0 & NV03_BOOT_0_RAM_AMOUNT) {
+ case NV04_BOOT_0_RAM_AMOUNT_32MB:
+ return 32 * 1024 * 1024;
+ case NV04_BOOT_0_RAM_AMOUNT_16MB:
+ return 16 * 1024 * 1024;
+ case NV04_BOOT_0_RAM_AMOUNT_8MB:
+ return 8 * 1024 * 1024;
+ case NV04_BOOT_0_RAM_AMOUNT_4MB:
+ return 4 * 1024 * 1024;
+ }
+ break;
+ case NV_10:
+ case NV_20:
+ case NV_30:
+ case NV_40:
+ case NV_50:
+ default:
+ if (dev_priv->flags & (NV_NFORCE | NV_NFORCE2)) {
+ return nouveau_mem_fb_amount_igp(dev);
+ } else {
+ uint64_t mem;
+ mem = (nv_rd32(dev, NV04_FIFO_DATA) &
+ NV10_FIFO_DATA_RAM_AMOUNT_MB_MASK) >>
+ NV10_FIFO_DATA_RAM_AMOUNT_MB_SHIFT;
+ return mem * 1024 * 1024;
+ }
+ break;
+ }
+
+ NV_ERROR(dev,
+ "Unable to detect video ram size. Please report your setup to "
+ DRIVER_EMAIL "\n");
+ return 0;
+}
+
+#if __OS_HAS_AGP
+static void nouveau_mem_reset_agp(struct drm_device *dev)
+{
+ uint32_t saved_pci_nv_1, saved_pci_nv_19, pmc_enable;
+
+ saved_pci_nv_1 = nv_rd32(dev, NV04_PBUS_PCI_NV_1);
+ saved_pci_nv_19 = nv_rd32(dev, NV04_PBUS_PCI_NV_19);
+
+ /* clear busmaster bit */
+ nv_wr32(dev, NV04_PBUS_PCI_NV_1, saved_pci_nv_1 & ~0x4);
+ /* clear SBA and AGP bits */
+ nv_wr32(dev, NV04_PBUS_PCI_NV_19, saved_pci_nv_19 & 0xfffff0ff);
+
+ /* power cycle pgraph, if enabled */
+ pmc_enable = nv_rd32(dev, NV03_PMC_ENABLE);
+ if (pmc_enable & NV_PMC_ENABLE_PGRAPH) {
+ nv_wr32(dev, NV03_PMC_ENABLE,
+ pmc_enable & ~NV_PMC_ENABLE_PGRAPH);
+ nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) |
+ NV_PMC_ENABLE_PGRAPH);
+ }
+
+ /* and restore (gives effect of resetting AGP) */
+ nv_wr32(dev, NV04_PBUS_PCI_NV_19, saved_pci_nv_19);
+ nv_wr32(dev, NV04_PBUS_PCI_NV_1, saved_pci_nv_1);
+}
+#endif
+
+int
+nouveau_mem_init_agp(struct drm_device *dev)
+{
+#if __OS_HAS_AGP
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct drm_agp_info info;
+ struct drm_agp_mode mode;
+ int ret;
+
+ if (nouveau_noagp)
+ return 0;
+
+ nouveau_mem_reset_agp(dev);
+
+ if (!dev->agp->acquired) {
+ ret = drm_agp_acquire(dev);
+ if (ret) {
+ NV_ERROR(dev, "Unable to acquire AGP: %d\n", ret);
+ return ret;
+ }
+ }
+
+ ret = drm_agp_info(dev, &info);
+ if (ret) {
+ NV_ERROR(dev, "Unable to get AGP info: %d\n", ret);
+ return ret;
+ }
+
+ /* see agp.h for the AGPSTAT_* modes available */
+ mode.mode = info.mode;
+ ret = drm_agp_enable(dev, mode);
+ if (ret) {
+ NV_ERROR(dev, "Unable to enable AGP: %d\n", ret);
+ return ret;
+ }
+
+ dev_priv->gart_info.type = NOUVEAU_GART_AGP;
+ dev_priv->gart_info.aper_base = info.aperture_base;
+ dev_priv->gart_info.aper_size = info.aperture_size;
+#endif
+ return 0;
+}
+
+int
+nouveau_mem_init(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct ttm_bo_device *bdev = &dev_priv->ttm.bdev;
+ int ret, dma_bits = 32;
+
+ dev_priv->fb_phys = drm_get_resource_start(dev, 1);
+ dev_priv->gart_info.type = NOUVEAU_GART_NONE;
+
+ if (dev_priv->card_type >= NV_50 &&
+ pci_dma_supported(dev->pdev, DMA_BIT_MASK(40)))
+ dma_bits = 40;
+
+ ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(dma_bits));
+ if (ret) {
+ NV_ERROR(dev, "Error setting DMA mask: %d\n", ret);
+ return ret;
+ }
+
+ ret = nouveau_ttm_global_init(dev_priv);
+ if (ret)
+ return ret;
+
+ ret = ttm_bo_device_init(&dev_priv->ttm.bdev,
+ dev_priv->ttm.bo_global_ref.ref.object,
+ &nouveau_bo_driver, DRM_FILE_PAGE_OFFSET,
+ dma_bits <= 32 ? true : false);
+ if (ret) {
+ NV_ERROR(dev, "Error initialising bo driver: %d\n", ret);
+ return ret;
+ }
+
+ INIT_LIST_HEAD(&dev_priv->ttm.bo_list);
+ spin_lock_init(&dev_priv->ttm.bo_list_lock);
+
+ dev_priv->fb_available_size = nouveau_mem_fb_amount(dev);
+
+ dev_priv->fb_mappable_pages = dev_priv->fb_available_size;
+ if (dev_priv->fb_mappable_pages > drm_get_resource_len(dev, 1))
+ dev_priv->fb_mappable_pages = drm_get_resource_len(dev, 1);
+ dev_priv->fb_mappable_pages >>= PAGE_SHIFT;
+
+ NV_INFO(dev, "%d MiB VRAM\n", (int)(dev_priv->fb_available_size >> 20));
+
+ /* remove reserved space at end of vram from available amount */
+ dev_priv->fb_available_size -= dev_priv->ramin_rsvd_vram;
+ dev_priv->fb_aper_free = dev_priv->fb_available_size;
+
+ /* mappable vram */
+ ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
+ dev_priv->fb_available_size >> PAGE_SHIFT);
+ if (ret) {
+ NV_ERROR(dev, "Failed VRAM mm init: %d\n", ret);
+ return ret;
+ }
+
+ /* GART */
+#if !defined(__powerpc__) && !defined(__ia64__)
+ if (drm_device_is_agp(dev) && dev->agp) {
+ ret = nouveau_mem_init_agp(dev);
+ if (ret)
+ NV_ERROR(dev, "Error initialising AGP: %d\n", ret);
+ }
+#endif
+
+ if (dev_priv->gart_info.type == NOUVEAU_GART_NONE) {
+ ret = nouveau_sgdma_init(dev);
+ if (ret) {
+ NV_ERROR(dev, "Error initialising PCI(E): %d\n", ret);
+ return ret;
+ }
+ }
+
+ NV_INFO(dev, "%d MiB GART (aperture)\n",
+ (int)(dev_priv->gart_info.aper_size >> 20));
+ dev_priv->gart_info.aper_free = dev_priv->gart_info.aper_size;
+
+ ret = ttm_bo_init_mm(bdev, TTM_PL_TT,
+ dev_priv->gart_info.aper_size >> PAGE_SHIFT);
+ if (ret) {
+ NV_ERROR(dev, "Failed TT mm init: %d\n", ret);
+ return ret;
+ }
+
+ dev_priv->fb_mtrr = drm_mtrr_add(drm_get_resource_start(dev, 1),
+ drm_get_resource_len(dev, 1),
+ DRM_MTRR_WC);
+ return 0;
+}
+
+
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-25 00:55:50 +0000