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drm/nvd0/disp: use single, shared, sync bo for all evo channels

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This simplifies some things, and hopefully won't come back to bite me.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-11-16 15:48:48 +10:00
parent a63a97eb66
commit 816af2f2d6
1 changed files with 32 additions and 31 deletions
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63
drivers/gpu/drm/nouveau/nvd0_display.c
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@ -43,12 +43,17 @@
#define EVO_OIMM(c) (0x09 + (c))
#define EVO_CURS(c) (0x0d + (c))
/* offsets in shared sync bo of various structures */
#define EVO_SYNC(c, o) ((c) * 0x0100 + (o))
#define EVO_MAST_NTFY EVO_SYNC( 0, 0x00)
#define EVO_FLIP_SEM0(c) EVO_SYNC((c), 0x00)
#define EVO_FLIP_SEM1(c) EVO_SYNC((c), 0x10)
struct evo {
int idx;
dma_addr_t handle;
u32 *ptr;
struct {
struct nouveau_bo *bo;
u32 offset;
u16 value;
} sem;
@ -56,6 +61,7 @@ struct evo {
struct nvd0_display {
struct nouveau_gpuobj *mem;
struct nouveau_bo *sync;
struct evo evo[9];
struct tasklet_struct tasklet;
@ -212,27 +218,23 @@ evo_fini_pio(struct drm_device *dev, int ch)
static bool
evo_sync_wait(void *data)
{
return nouveau_bo_rd32(data, 0) != 0x00000000;
return nouveau_bo_rd32(data, EVO_MAST_NTFY) != 0x00000000;
}
static int
evo_sync(struct drm_device *dev, int ch)
{
struct nvd0_display *disp = nvd0_display(dev);
struct evo *evo = &disp->evo[ch];
u32 *push;
nouveau_bo_wr32(evo->sem.bo, 0, 0x00000000);
push = evo_wait(dev, ch, 8);
u32 *push = evo_wait(dev, ch, 8);
if (push) {
nouveau_bo_wr32(disp->sync, EVO_MAST_NTFY, 0x00000000);
evo_mthd(push, 0x0084, 1);
evo_data(push, 0x80000000);
evo_data(push, 0x80000000 | EVO_MAST_NTFY);
evo_mthd(push, 0x0080, 2);
evo_data(push, 0x00000000);
evo_data(push, 0x00000000);
evo_kick(push, dev, ch);
if (nv_wait_cb(dev, evo_sync_wait, evo->sem.bo))
if (nv_wait_cb(dev, evo_sync_wait, disp->sync))
return 0;
}
@ -245,9 +247,7 @@ evo_sync(struct drm_device *dev, int ch)
struct nouveau_bo *
nvd0_display_crtc_sema(struct drm_device *dev, int crtc)
{
struct nvd0_display *disp = nvd0_display(dev);
struct evo *evo = &disp->evo[EVO_FLIP(crtc)];
return evo->sem.bo;
return nvd0_display(dev)->sync;
}
void
@ -313,7 +313,7 @@ nvd0_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb,
OUT_RING (chan, 0x1001);
FIRE_RING (chan);
} else {
nouveau_bo_wr32(evo->sem.bo, evo->sem.offset / 4,
nouveau_bo_wr32(disp->sync, evo->sem.offset / 4,
0xf00d0000 | evo->sem.value);
evo_sync(crtc->dev, EVO_MASTER);
}
@ -1752,12 +1752,12 @@ nvd0_display_destroy(struct drm_device *dev)
for (i = 0; i < EVO_DMA_NR; i++) {
struct evo *evo = &disp->evo[i];
nouveau_bo_unmap(evo->sem.bo);
nouveau_bo_ref(NULL, &evo->sem.bo);
pci_free_consistent(pdev, PAGE_SIZE, evo->ptr, evo->handle);
}
nouveau_gpuobj_ref(NULL, &disp->mem);
nouveau_bo_unmap(disp->sync);
nouveau_bo_ref(NULL, &disp->sync);
nouveau_irq_unregister(dev, 26);
dev_priv->engine.display.priv = NULL;
@ -1829,6 +1829,20 @@ nvd0_display_create(struct drm_device *dev)
tasklet_init(&disp->tasklet, nvd0_display_bh, (unsigned long)dev);
nouveau_irq_register(dev, 26, nvd0_display_intr);
/* small shared memory area we use for notifiers and semaphores */
ret = nouveau_bo_new(dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,
0, 0x0000, &disp->sync);
if (!ret) {
ret = nouveau_bo_pin(disp->sync, TTM_PL_FLAG_VRAM);
if (!ret)
ret = nouveau_bo_map(disp->sync);
if (ret)
nouveau_bo_ref(NULL, &disp->sync);
}
if (ret)
goto out;
/* hash table and dma objects for the memory areas we care about */
ret = nouveau_gpuobj_new(dev, NULL, 0x4000, 0x10000,
NVOBJ_FLAG_ZERO_ALLOC, &disp->mem);
@ -1838,31 +1852,18 @@ nvd0_display_create(struct drm_device *dev)
/* create evo dma channels */
for (i = 0; i < EVO_DMA_NR; i++) {
struct evo *evo = &disp->evo[i];
u64 offset = disp->sync->bo.offset;
u32 dmao = 0x1000 + (i * 0x100);
u32 hash = 0x0000 + (i * 0x040);
u64 offset;
evo->idx = i;
evo->sem.offset = EVO_SYNC(evo->idx, 0x00);
evo->ptr = pci_alloc_consistent(pdev, PAGE_SIZE, &evo->handle);
if (!evo->ptr) {
ret = -ENOMEM;
goto out;
}
ret = nouveau_bo_new(dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,
0, 0x0000, &evo->sem.bo);
if (!ret) {
ret = nouveau_bo_pin(evo->sem.bo, TTM_PL_FLAG_VRAM);
if (!ret)
ret = nouveau_bo_map(evo->sem.bo);
if (ret)
nouveau_bo_ref(NULL, &evo->sem.bo);
offset = evo->sem.bo->bo.offset;
}
if (ret)
goto out;
nv_wo32(disp->mem, dmao + 0x00, 0x00000049);
nv_wo32(disp->mem, dmao + 0x04, (offset + 0x0000) >> 8);
nv_wo32(disp->mem, dmao + 0x08, (offset + 0x0fff) >> 8);