From b3ccd34ded3e730bba33cd4bd4b7ab78b4a0bb03 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Thu, 6 Sep 2012 20:26:38 -0400 Subject: [PATCH] drm/nvc0/fifo: re-bash PBUS regs after vm-fault to BARs/PEEPHOLE Seems to be required to "re-arm" the engines after a vm fault. Signed-off-by: Ben Skeggs --- .../gpu/drm/nouveau/core/engine/fifo/nvc0.c | 22 +++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c index 2dd68126f84..6f21be60055 100644 --- a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c @@ -389,12 +389,26 @@ static const struct nouveau_bitfield nvc0_fifo_subfifo_intr[] = { static void nvc0_fifo_isr_vm_fault(struct nvc0_fifo_priv *priv, int unit) { - u32 inst = nv_rd32(priv, 0x2800 + (unit * 0x10)); - u32 valo = nv_rd32(priv, 0x2804 + (unit * 0x10)); - u32 vahi = nv_rd32(priv, 0x2808 + (unit * 0x10)); - u32 stat = nv_rd32(priv, 0x280c + (unit * 0x10)); + u32 inst = nv_rd32(priv, 0x002800 + (unit * 0x10)); + u32 valo = nv_rd32(priv, 0x002804 + (unit * 0x10)); + u32 vahi = nv_rd32(priv, 0x002808 + (unit * 0x10)); + u32 stat = nv_rd32(priv, 0x00280c + (unit * 0x10)); u32 client = (stat & 0x00001f00) >> 8; + switch (unit) { + case 3: /* PEEPHOLE */ + nv_mask(priv, 0x001718, 0x00000000, 0x00000000); + break; + case 4: /* BAR1 */ + nv_mask(priv, 0x001704, 0x00000000, 0x00000000); + break; + case 5: /* BAR3 */ + nv_mask(priv, 0x001714, 0x00000000, 0x00000000); + break; + default: + break; + } + nv_error(priv, "%s fault at 0x%010llx [", (stat & 0x00000080) ? "write" : "read", (u64)vahi << 32 | valo); nouveau_enum_print(nvc0_fifo_fault_reason, stat & 0x0000000f); -- 2.20.1