drm/amdgpu/gfx10: replace BUG_ON() with WARN_ON()

commit d06c417 upstream.

There's no need to crash the kernel for these cases.

Reviewed-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit ac6f00b)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: alexdeucher

drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c

@@ -3755,7 +3755,7 @@ static void gfx_v10_0_wait_reg_mem(struct amdgpu_ring *ring, int eng_sel,
 			   WAIT_REG_MEM_ENGINE(eng_sel)));
 
 	if (mem_space)
-		BUG_ON(addr0 & 0x3); /* Dword align */
+		WARN_ON(addr0 & 0x3); /* Dword align */
 	amdgpu_ring_write(ring, addr0);
 	amdgpu_ring_write(ring, addr1);
 	amdgpu_ring_write(ring, ref);
@@ -8311,7 +8311,7 @@ static void gfx_v10_0_ring_emit_ib_gfx(struct amdgpu_ring *ring,
 		control |= 0x400000;
 
 	amdgpu_ring_write(ring, header);
-	BUG_ON(ib->gpu_addr & 0x3); /* Dword align */
+	WARN_ON(ib->gpu_addr & 0x3); /* Dword align */
 	amdgpu_ring_write(ring,
 #ifdef __BIG_ENDIAN
 		(2 << 0) |
@@ -8350,7 +8350,7 @@ static void gfx_v10_0_ring_emit_ib_compute(struct amdgpu_ring *ring,
 	}
 
 	amdgpu_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
-	BUG_ON(ib->gpu_addr & 0x3); /* Dword align */
+	WARN_ON(ib->gpu_addr & 0x3); /* Dword align */
 	amdgpu_ring_write(ring,
 #ifdef __BIG_ENDIAN
 				(2 << 0) |
@@ -8383,9 +8383,9 @@ static void gfx_v10_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
 	 * aligned if only send 32bit data low (discard data high)
 	 */
 	if (write64bit)
-		BUG_ON(addr & 0x7);
+		WARN_ON(addr & 0x7);
 	else
-		BUG_ON(addr & 0x3);
+		WARN_ON(addr & 0x3);
 	amdgpu_ring_write(ring, lower_32_bits(addr));
 	amdgpu_ring_write(ring, upper_32_bits(addr));
 	amdgpu_ring_write(ring, lower_32_bits(seq));
@@ -8437,9 +8437,6 @@ static void gfx_v10_0_ring_emit_fence_kiq(struct amdgpu_ring *ring, u64 addr,
 {
 	struct amdgpu_device *adev = ring->adev;
 
-	/* we only allocate 32bit for each seq wb address */
-	BUG_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
-
 	/* write fence seq to the "addr" */
 	amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
 	amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |