mirror of
https://github.com/torvalds/linux.git
synced 2024-11-07 20:51:47 +00:00
295 lines
7.1 KiB
C
295 lines
7.1 KiB
C
#include "drmP.h"
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#include "drm.h"
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#include "nouveau_drv.h"
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#include "nouveau_drm.h"
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struct nv50_fb_priv {
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struct page *r100c08_page;
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dma_addr_t r100c08;
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};
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static void
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nv50_fb_destroy(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
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struct nv50_fb_priv *priv = pfb->priv;
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if (drm_mm_initialized(&pfb->tag_heap))
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drm_mm_takedown(&pfb->tag_heap);
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if (priv->r100c08_page) {
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pci_unmap_page(dev->pdev, priv->r100c08, PAGE_SIZE,
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PCI_DMA_BIDIRECTIONAL);
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__free_page(priv->r100c08_page);
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}
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kfree(priv);
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pfb->priv = NULL;
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}
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static int
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nv50_fb_create(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
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struct nv50_fb_priv *priv;
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u32 tagmem;
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int ret;
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priv = kzalloc(sizeof(*priv), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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pfb->priv = priv;
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priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
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if (!priv->r100c08_page) {
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nv50_fb_destroy(dev);
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return -ENOMEM;
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}
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priv->r100c08 = pci_map_page(dev->pdev, priv->r100c08_page, 0,
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PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
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if (pci_dma_mapping_error(dev->pdev, priv->r100c08)) {
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nv50_fb_destroy(dev);
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return -EFAULT;
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}
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tagmem = nv_rd32(dev, 0x100320);
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NV_DEBUG(dev, "%d tags available\n", tagmem);
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ret = drm_mm_init(&pfb->tag_heap, 0, tagmem);
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if (ret) {
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nv50_fb_destroy(dev);
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return ret;
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}
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return 0;
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}
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int
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nv50_fb_init(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nv50_fb_priv *priv;
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int ret;
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if (!dev_priv->engine.fb.priv) {
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ret = nv50_fb_create(dev);
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if (ret)
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return ret;
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}
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priv = dev_priv->engine.fb.priv;
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/* Not a clue what this is exactly. Without pointing it at a
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* scratch page, VRAM->GART blits with M2MF (as in DDX DFS)
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* cause IOMMU "read from address 0" errors (rh#561267)
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*/
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nv_wr32(dev, 0x100c08, priv->r100c08 >> 8);
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/* This is needed to get meaningful information from 100c90
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* on traps. No idea what these values mean exactly. */
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switch (dev_priv->chipset) {
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case 0x50:
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nv_wr32(dev, 0x100c90, 0x000707ff);
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break;
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case 0xa3:
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case 0xa5:
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case 0xa8:
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nv_wr32(dev, 0x100c90, 0x000d0fff);
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break;
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case 0xaf:
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nv_wr32(dev, 0x100c90, 0x089d1fff);
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break;
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default:
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nv_wr32(dev, 0x100c90, 0x001d07ff);
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break;
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}
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return 0;
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}
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void
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nv50_fb_takedown(struct drm_device *dev)
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{
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nv50_fb_destroy(dev);
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}
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static struct nouveau_enum vm_dispatch_subclients[] = {
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{ 0x00000000, "GRCTX", NULL },
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{ 0x00000001, "NOTIFY", NULL },
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{ 0x00000002, "QUERY", NULL },
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{ 0x00000003, "COND", NULL },
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{ 0x00000004, "M2M_IN", NULL },
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{ 0x00000005, "M2M_OUT", NULL },
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{ 0x00000006, "M2M_NOTIFY", NULL },
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{}
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};
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static struct nouveau_enum vm_ccache_subclients[] = {
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{ 0x00000000, "CB", NULL },
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{ 0x00000001, "TIC", NULL },
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{ 0x00000002, "TSC", NULL },
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{}
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};
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static struct nouveau_enum vm_prop_subclients[] = {
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{ 0x00000000, "RT0", NULL },
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{ 0x00000001, "RT1", NULL },
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{ 0x00000002, "RT2", NULL },
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{ 0x00000003, "RT3", NULL },
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{ 0x00000004, "RT4", NULL },
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{ 0x00000005, "RT5", NULL },
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{ 0x00000006, "RT6", NULL },
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{ 0x00000007, "RT7", NULL },
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{ 0x00000008, "ZETA", NULL },
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{ 0x00000009, "LOCAL", NULL },
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{ 0x0000000a, "GLOBAL", NULL },
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{ 0x0000000b, "STACK", NULL },
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{ 0x0000000c, "DST2D", NULL },
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{}
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};
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static struct nouveau_enum vm_pfifo_subclients[] = {
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{ 0x00000000, "PUSHBUF", NULL },
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{ 0x00000001, "SEMAPHORE", NULL },
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{}
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};
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static struct nouveau_enum vm_bar_subclients[] = {
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{ 0x00000000, "FB", NULL },
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{ 0x00000001, "IN", NULL },
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{}
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};
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static struct nouveau_enum vm_client[] = {
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{ 0x00000000, "STRMOUT", NULL },
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{ 0x00000003, "DISPATCH", vm_dispatch_subclients },
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{ 0x00000004, "PFIFO_WRITE", NULL },
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{ 0x00000005, "CCACHE", vm_ccache_subclients },
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{ 0x00000006, "PPPP", NULL },
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{ 0x00000007, "CLIPID", NULL },
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{ 0x00000008, "PFIFO_READ", NULL },
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{ 0x00000009, "VFETCH", NULL },
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{ 0x0000000a, "TEXTURE", NULL },
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{ 0x0000000b, "PROP", vm_prop_subclients },
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{ 0x0000000c, "PVP", NULL },
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{ 0x0000000d, "PBSP", NULL },
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{ 0x0000000e, "PCRYPT", NULL },
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{ 0x0000000f, "PCOUNTER", NULL },
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{ 0x00000011, "PDAEMON", NULL },
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{}
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};
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static struct nouveau_enum vm_engine[] = {
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{ 0x00000000, "PGRAPH", NULL },
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{ 0x00000001, "PVP", NULL },
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{ 0x00000004, "PEEPHOLE", NULL },
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{ 0x00000005, "PFIFO", vm_pfifo_subclients },
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{ 0x00000006, "BAR", vm_bar_subclients },
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{ 0x00000008, "PPPP", NULL },
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{ 0x00000009, "PBSP", NULL },
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{ 0x0000000a, "PCRYPT", NULL },
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{ 0x0000000b, "PCOUNTER", NULL },
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{ 0x0000000c, "SEMAPHORE_BG", NULL },
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{ 0x0000000d, "PCOPY", NULL },
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{ 0x0000000e, "PDAEMON", NULL },
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{}
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};
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static struct nouveau_enum vm_fault[] = {
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{ 0x00000000, "PT_NOT_PRESENT", NULL },
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{ 0x00000001, "PT_TOO_SHORT", NULL },
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{ 0x00000002, "PAGE_NOT_PRESENT", NULL },
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{ 0x00000003, "PAGE_SYSTEM_ONLY", NULL },
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{ 0x00000004, "PAGE_READ_ONLY", NULL },
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{ 0x00000006, "NULL_DMAOBJ", NULL },
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{ 0x00000007, "WRONG_MEMTYPE", NULL },
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{ 0x0000000b, "VRAM_LIMIT", NULL },
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{ 0x0000000f, "DMAOBJ_LIMIT", NULL },
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{}
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};
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void
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nv50_fb_vm_trap(struct drm_device *dev, int display)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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const struct nouveau_enum *en, *cl;
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unsigned long flags;
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u32 trap[6], idx, chinst;
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u8 st0, st1, st2, st3;
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int i, ch;
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idx = nv_rd32(dev, 0x100c90);
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if (!(idx & 0x80000000))
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return;
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idx &= 0x00ffffff;
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for (i = 0; i < 6; i++) {
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nv_wr32(dev, 0x100c90, idx | i << 24);
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trap[i] = nv_rd32(dev, 0x100c94);
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}
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nv_wr32(dev, 0x100c90, idx | 0x80000000);
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if (!display)
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return;
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/* lookup channel id */
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chinst = (trap[2] << 16) | trap[1];
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spin_lock_irqsave(&dev_priv->channels.lock, flags);
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for (ch = 0; ch < dev_priv->engine.fifo.channels; ch++) {
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struct nouveau_channel *chan = dev_priv->channels.ptr[ch];
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if (!chan || !chan->ramin)
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continue;
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if (chinst == chan->ramin->vinst >> 12)
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break;
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}
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spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
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/* decode status bits into something more useful */
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if (dev_priv->chipset < 0xa3 ||
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dev_priv->chipset == 0xaa || dev_priv->chipset == 0xac) {
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st0 = (trap[0] & 0x0000000f) >> 0;
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st1 = (trap[0] & 0x000000f0) >> 4;
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st2 = (trap[0] & 0x00000f00) >> 8;
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st3 = (trap[0] & 0x0000f000) >> 12;
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} else {
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st0 = (trap[0] & 0x000000ff) >> 0;
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st1 = (trap[0] & 0x0000ff00) >> 8;
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st2 = (trap[0] & 0x00ff0000) >> 16;
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st3 = (trap[0] & 0xff000000) >> 24;
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}
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NV_INFO(dev, "VM: trapped %s at 0x%02x%04x%04x on ch %d [0x%08x] ",
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(trap[5] & 0x00000100) ? "read" : "write",
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trap[5] & 0xff, trap[4] & 0xffff, trap[3] & 0xffff, ch, chinst);
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en = nouveau_enum_find(vm_engine, st0);
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if (en)
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printk("%s/", en->name);
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else
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printk("%02x/", st0);
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cl = nouveau_enum_find(vm_client, st2);
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if (cl)
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printk("%s/", cl->name);
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else
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printk("%02x/", st2);
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if (cl && cl->data) cl = nouveau_enum_find(cl->data, st3);
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else if (en && en->data) cl = nouveau_enum_find(en->data, st3);
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else cl = NULL;
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if (cl)
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printk("%s", cl->name);
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else
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printk("%02x", st3);
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printk(" reason: ");
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en = nouveau_enum_find(vm_fault, st1);
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if (en)
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printk("%s\n", en->name);
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else
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printk("0x%08x\n", st1);
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}
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