diff options
Diffstat (limited to 'src/gallium/drivers/vc4/vc4_qpu_schedule.c')
| -rw-r--r-- | src/gallium/drivers/vc4/vc4_qpu_schedule.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc4/vc4_qpu_schedule.c b/src/gallium/drivers/vc4/vc4_qpu_schedule.c index 45360f73410..878cdf95d96 100644 --- a/src/gallium/drivers/vc4/vc4_qpu_schedule.c +++ b/src/gallium/drivers/vc4/vc4_qpu_schedule.c @@ -705,6 +705,26 @@ static uint32_t waddr_latency(uint32_t waddr, uint64_t after) /* Apply some huge latency between texture fetch requests and getting * their results back. + * + * FIXME: This is actually pretty bogus. If we do: + * + * mov tmu0_s, a + * <a bit of math> + * mov tmu0_s, b + * load_tmu0 + * <more math> + * load_tmu0 + * + * we count that as worse than + * + * mov tmu0_s, a + * mov tmu0_s, b + * <lots of math> + * load_tmu0 + * <more math> + * load_tmu0 + * + * because we associate the first load_tmu0 with the *second* tmu0_s. */ if (waddr == QPU_W_TMU0_S) { if (QPU_GET_FIELD(after, QPU_SIG) == QPU_SIG_LOAD_TMU0) |