From cdccc70eff1eaf3627a716374f9ebc115fc4621c Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 7 Feb 2011 13:29:23 +1000 Subject: [PATCH] drm/nv50-nvc0: initialise display sync channels Also imports a couple of helper functions that'll be used to implement page flipping in the following commits.. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_dma.h | 2 + drivers/gpu/drm/nouveau/nouveau_object.c | 22 +++- drivers/gpu/drm/nouveau/nv50_display.c | 123 ++++++++++++++++++++++- drivers/gpu/drm/nouveau/nv50_display.h | 15 +++ drivers/gpu/drm/nouveau/nv50_evo.c | 88 +++++++++++++++- drivers/gpu/drm/nouveau/nv50_evo.h | 2 + 6 files changed, 246 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_dma.h b/drivers/gpu/drm/nouveau/nouveau_dma.h index 6c9501b3226..6f0f4bb9379 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dma.h +++ b/drivers/gpu/drm/nouveau/nouveau_dma.h @@ -73,6 +73,8 @@ enum { NvImageBlit = 0x8000000d, NvSw = 0x8000000e, NvSema = 0x8000000f, + NvEvoSema0 = 0x80000010, + NvEvoSema1 = 0x80000011, /* G80+ display objects */ NvEvoVRAM = 0x01000000, diff --git a/drivers/gpu/drm/nouveau/nouveau_object.c b/drivers/gpu/drm/nouveau/nouveau_object.c index 710a7053dc9..4f00c87ed86 100644 --- a/drivers/gpu/drm/nouveau/nouveau_object.c +++ b/drivers/gpu/drm/nouveau/nouveau_object.c @@ -36,6 +36,7 @@ #include "nouveau_drm.h" #include "nouveau_ramht.h" #include "nouveau_vm.h" +#include "nv50_display.h" struct nouveau_gpuobj_method { struct list_head head; @@ -782,7 +783,7 @@ nouveau_gpuobj_channel_init(struct nouveau_channel *chan, struct drm_device *dev = chan->dev; struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_gpuobj *vram = NULL, *tt = NULL; - int ret; + int ret, i; NV_DEBUG(dev, "ch%d vram=0x%08x tt=0x%08x\n", chan->id, vram_h, tt_h); @@ -847,6 +848,25 @@ nouveau_gpuobj_channel_init(struct nouveau_channel *chan, nouveau_gpuobj_ref(NULL, &ramht); if (ret) return ret; + + /* dma objects for display sync channel semaphore blocks */ + for (i = 0; i < 2; i++) { + struct nouveau_gpuobj *sem = NULL; + struct nv50_display_crtc *dispc = + &nv50_display(dev)->crtc[i]; + u64 offset = dispc->sem.bo->bo.mem.start << PAGE_SHIFT; + + ret = nouveau_gpuobj_dma_new(chan, 0x3d, offset, 0xfff, + NV_MEM_ACCESS_RW, + NV_MEM_TARGET_VRAM, &sem); + if (ret) + return ret; + + ret = nouveau_ramht_insert(chan, NvEvoSema0 + i, sem); + nouveau_gpuobj_ref(NULL, &sem); + if (ret) + return ret; + } } /* VRAM ctxdma */ diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 09d7994ea09..75a376cc342 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -178,7 +178,7 @@ nv50_display_init(struct drm_device *dev) nv_wr32(dev, NV50_PDISPLAY_OBJECTS, (evo->ramin->vinst >> 8) | 9); - ret = RING_SPACE(evo, 11); + ret = RING_SPACE(evo, 15); if (ret) return ret; BEGIN_RING(evo, 0, NV50_EVO_UNK84, 2); @@ -192,6 +192,11 @@ nv50_display_init(struct drm_device *dev) OUT_RING(evo, 0); BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK082C), 1); OUT_RING(evo, 0); + /* required to make display sync channels not hate life */ + BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK900), 1); + OUT_RING (evo, 0x00000311); + BEGIN_RING(evo, 0, NV50_EVO_CRTC(1, UNK900), 1); + OUT_RING (evo, 0x00000311); FIRE_RING(evo); if (!nv_wait(dev, 0x640004, 0xffffffff, evo->dma.put << 2)) NV_ERROR(dev, "evo pushbuf stalled\n"); @@ -366,6 +371,122 @@ nv50_display_destroy(struct drm_device *dev) kfree(disp); } +void +nv50_display_flip_stop(struct drm_crtc *crtc) +{ + struct nv50_display *disp = nv50_display(crtc->dev); + struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); + struct nv50_display_crtc *dispc = &disp->crtc[nv_crtc->index]; + struct nouveau_channel *evo = dispc->sync; + int ret; + + ret = RING_SPACE(evo, 8); + if (ret) { + WARN_ON(1); + return; + } + + BEGIN_RING(evo, 0, 0x0084, 1); + OUT_RING (evo, 0x00000000); + BEGIN_RING(evo, 0, 0x0094, 1); + OUT_RING (evo, 0x00000000); + BEGIN_RING(evo, 0, 0x00c0, 1); + OUT_RING (evo, 0x00000000); + BEGIN_RING(evo, 0, 0x0080, 1); + OUT_RING (evo, 0x00000000); + FIRE_RING (evo); +} + +int +nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb, + struct nouveau_channel *chan) +{ + struct drm_nouveau_private *dev_priv = crtc->dev->dev_private; + struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb); + struct nv50_display *disp = nv50_display(crtc->dev); + struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); + struct nv50_display_crtc *dispc = &disp->crtc[nv_crtc->index]; + struct nouveau_channel *evo = dispc->sync; + int ret; + + ret = RING_SPACE(evo, 24); + if (unlikely(ret)) + return ret; + + /* synchronise with the rendering channel, if necessary */ + if (likely(chan)) { + u64 offset = dispc->sem.bo->vma.offset + dispc->sem.offset; + + ret = RING_SPACE(chan, 10); + if (ret) { + WIND_RING(evo); + return ret; + } + + if (dev_priv->chipset < 0xc0) { + BEGIN_RING(chan, NvSubSw, 0x0060, 2); + OUT_RING (chan, NvEvoSema0 + nv_crtc->index); + OUT_RING (chan, dispc->sem.offset); + BEGIN_RING(chan, NvSubSw, 0x006c, 1); + OUT_RING (chan, 0xf00d0000 | dispc->sem.value); + BEGIN_RING(chan, NvSubSw, 0x0064, 2); + OUT_RING (chan, dispc->sem.offset ^ 0x10); + OUT_RING (chan, 0x74b1e000); + BEGIN_RING(chan, NvSubSw, 0x0060, 1); + if (dev_priv->chipset < 0x84) + OUT_RING (chan, NvSema); + else + OUT_RING (chan, chan->vram_handle); + } else { + BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0010, 4); + OUT_RING (chan, upper_32_bits(offset)); + OUT_RING (chan, lower_32_bits(offset)); + OUT_RING (chan, 0xf00d0000 | dispc->sem.value); + OUT_RING (chan, 0x1002); + BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0010, 4); + OUT_RING (chan, upper_32_bits(offset)); + OUT_RING (chan, lower_32_bits(offset ^ 0x10)); + OUT_RING (chan, 0x74b1e000); + OUT_RING (chan, 0x1001); + } + FIRE_RING (chan); + } else { + nouveau_bo_wr32(dispc->sem.bo, dispc->sem.offset / 4, + 0xf00d0000 | dispc->sem.value); + } + + /* queue the flip on the crtc's "display sync" channel */ + BEGIN_RING(evo, 0, 0x0100, 1); + OUT_RING (evo, 0xfffe0000); + BEGIN_RING(evo, 0, 0x0084, 5); + OUT_RING (evo, chan ? 0x00000100 : 0x00000010); + OUT_RING (evo, dispc->sem.offset); + OUT_RING (evo, 0xf00d0000 | dispc->sem.value); + OUT_RING (evo, 0x74b1e000); + OUT_RING (evo, NvEvoSync); + BEGIN_RING(evo, 0, 0x00a0, 2); + OUT_RING (evo, 0x00000000); + OUT_RING (evo, 0x00000000); + BEGIN_RING(evo, 0, 0x00c0, 1); + OUT_RING (evo, nv_fb->r_dma); + BEGIN_RING(evo, 0, 0x0110, 2); + OUT_RING (evo, 0x00000000); + OUT_RING (evo, 0x00000000); + BEGIN_RING(evo, 0, 0x0800, 5); + OUT_RING (evo, (nv_fb->nvbo->bo.mem.start << PAGE_SHIFT) >> 8); + OUT_RING (evo, 0); + OUT_RING (evo, (fb->height << 16) | fb->width); + OUT_RING (evo, nv_fb->r_pitch); + OUT_RING (evo, nv_fb->r_format); + BEGIN_RING(evo, 0, 0x0080, 1); + OUT_RING (evo, 0x00000000); + FIRE_RING (evo); + + dispc->sem.offset ^= 0x10; + dispc->sem.value++; + return 0; +} + static u16 nv50_display_script_select(struct drm_device *dev, struct dcb_entry *dcb, u32 mc, int pxclk) diff --git a/drivers/gpu/drm/nouveau/nv50_display.h b/drivers/gpu/drm/nouveau/nv50_display.h index 3f5a3d54359..c2da503a22a 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.h +++ b/drivers/gpu/drm/nouveau/nv50_display.h @@ -35,10 +35,21 @@ #include "nouveau_crtc.h" #include "nv50_evo.h" +struct nv50_display_crtc { + struct nouveau_channel *sync; + struct { + struct nouveau_bo *bo; + u32 offset; + u16 value; + } sem; +}; + struct nv50_display { struct nouveau_channel *master; struct nouveau_gpuobj *ntfy; + struct nv50_display_crtc crtc[2]; + struct tasklet_struct tasklet; struct { struct dcb_entry *dcb; @@ -62,6 +73,10 @@ void nv50_display_destroy(struct drm_device *dev); int nv50_crtc_blank(struct nouveau_crtc *, bool blank); int nv50_crtc_set_clock(struct drm_device *, int head, int pclk); +int nv50_display_flip_next(struct drm_crtc *, struct drm_framebuffer *, + struct nouveau_channel *chan); +void nv50_display_flip_stop(struct drm_crtc *); + int nv50_evo_init(struct drm_device *dev); void nv50_evo_fini(struct drm_device *dev); void nv50_evo_dmaobj_init(struct nouveau_gpuobj *, u32 memtype, u64 base, diff --git a/drivers/gpu/drm/nouveau/nv50_evo.c b/drivers/gpu/drm/nouveau/nv50_evo.c index b70208e981f..18fbf27376c 100644 --- a/drivers/gpu/drm/nouveau/nv50_evo.c +++ b/drivers/gpu/drm/nouveau/nv50_evo.c @@ -220,7 +220,15 @@ static void nv50_evo_destroy(struct drm_device *dev) { struct nv50_display *disp = nv50_display(dev); - + int i; + + for (i = 0; i < 2; i++) { + if (disp->crtc[i].sem.bo) { + nouveau_bo_unmap(disp->crtc[i].sem.bo); + nouveau_bo_ref(NULL, &disp->crtc[i].sem.bo); + } + nv50_evo_channel_del(&disp->crtc[i].sync); + } nouveau_gpuobj_ref(NULL, &disp->ntfy); nv50_evo_channel_del(&disp->master); } @@ -232,7 +240,7 @@ nv50_evo_create(struct drm_device *dev) struct nv50_display *disp = nv50_display(dev); struct nouveau_gpuobj *ramht = NULL; struct nouveau_channel *evo; - int ret; + int ret, i, j; /* create primary evo channel, the one we use for modesetting * purporses @@ -311,6 +319,61 @@ nv50_evo_create(struct drm_device *dev) if (ret) goto err; + /* create "display sync" channels and other structures we need + * to implement page flipping + */ + for (i = 0; i < 2; i++) { + struct nv50_display_crtc *dispc = &disp->crtc[i]; + u64 offset; + + ret = nv50_evo_channel_new(dev, 1 + i, &dispc->sync); + if (ret) + goto err; + + ret = nouveau_bo_new(dev, NULL, 4096, 0x1000, TTM_PL_FLAG_VRAM, + 0, 0x0000, false, true, &dispc->sem.bo); + if (!ret) { + offset = dispc->sem.bo->bo.mem.start << PAGE_SHIFT; + + ret = nouveau_bo_pin(dispc->sem.bo, TTM_PL_FLAG_VRAM); + if (!ret) + ret = nouveau_bo_map(dispc->sem.bo); + if (ret) + nouveau_bo_ref(NULL, &dispc->sem.bo); + } + + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoSync, 0x0000, + offset, 4096, NULL); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoVRAM_LP, 0x80000000, + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoFB32, 0x80000000 | + (dev_priv->chipset < 0xc0 ? + 0x7a00 : 0xfe00), + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoFB16, 0x80000000 | + (dev_priv->chipset < 0xc0 ? + 0x7000 : 0xfe00), + 0, dev_priv->vram_size, NULL); + if (ret) + goto err; + + for (j = 0; j < 4096; j += 4) + nouveau_bo_wr32(dispc->sem.bo, j / 4, 0x74b1e000); + dispc->sem.offset = 0; + } + return 0; err: @@ -322,7 +385,7 @@ int nv50_evo_init(struct drm_device *dev) { struct nv50_display *disp = nv50_display(dev); - int ret; + int ret, i; if (!disp->master) { ret = nv50_evo_create(dev); @@ -330,15 +393,32 @@ nv50_evo_init(struct drm_device *dev) return ret; } - return nv50_evo_channel_init(disp->master); + ret = nv50_evo_channel_init(disp->master); + if (ret) + return ret; + + for (i = 0; i < 2; i++) { + ret = nv50_evo_channel_init(disp->crtc[i].sync); + if (ret) + return ret; + } + + return 0; } void nv50_evo_fini(struct drm_device *dev) { struct nv50_display *disp = nv50_display(dev); + int i; + + for (i = 0; i < 2; i++) { + if (disp->crtc[i].sync) + nv50_evo_channel_fini(disp->crtc[i].sync); + } if (disp->master) nv50_evo_channel_fini(disp->master); + nv50_evo_destroy(dev); } diff --git a/drivers/gpu/drm/nouveau/nv50_evo.h b/drivers/gpu/drm/nouveau/nv50_evo.h index e6b069fec0b..3860ca62cb1 100644 --- a/drivers/gpu/drm/nouveau/nv50_evo.h +++ b/drivers/gpu/drm/nouveau/nv50_evo.h @@ -113,5 +113,7 @@ /* Both of these are needed, otherwise nothing happens. */ #define NV50_EVO_CRTC_SCALE_RES1 0x000008d8 #define NV50_EVO_CRTC_SCALE_RES2 0x000008dc +#define NV50_EVO_CRTC_UNK900 0x00000900 +#define NV50_EVO_CRTC_UNK904 0x00000904 #endif -- 2.41.0