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| author | Kenneth Graunke <kenneth@whitecape.org> | 2016-06-08 22:21:22 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2016-06-12 00:38:26 -0700 |
| commit | 87d062a94080373995170f51063a9649c96c6dea (patch) | |
| tree | a0057a7ebd072ec6104b83d17fb6ec7f396f60c7 /src/intel/vulkan/gen7_cmd_buffer.c | |
| parent | 3f48548a6f65fe90b97956c7be73268917c6f2f9 (diff) | |
| download | external_mesa3d-87d062a94080373995170f51063a9649c96c6dea.zip external_mesa3d-87d062a94080373995170f51063a9649c96c6dea.tar.gz external_mesa3d-87d062a94080373995170f51063a9649c96c6dea.tar.bz2 | |
i965: Fix shared local memory size for Gen9+.
Skylake changes the representation of shared local memory size:
Size | 0 kB | 1 kB | 2 kB | 4 kB | 8 kB | 16 kB | 32 kB | 64 kB |
-------------------------------------------------------------------
Gen7-8 | 0 | none | none | 1 | 2 | 4 | 8 | 16 |
-------------------------------------------------------------------
Gen9+ | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
The old formula would substantially underallocate the amount of space.
This fixes GPU hangs on Skylake when running with full thread counts.
v2: Fix the Vulkan driver too, use a helper function, and fix the table
in the comments and commit message.
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Diffstat (limited to 'src/intel/vulkan/gen7_cmd_buffer.c')
| -rw-r--r-- | src/intel/vulkan/gen7_cmd_buffer.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/src/intel/vulkan/gen7_cmd_buffer.c b/src/intel/vulkan/gen7_cmd_buffer.c index ffd1571..ba4c8b6 100644 --- a/src/intel/vulkan/gen7_cmd_buffer.c +++ b/src/intel/vulkan/gen7_cmd_buffer.c @@ -241,15 +241,7 @@ flush_compute_descriptor_set(struct anv_cmd_buffer *cmd_buffer) } } - assert(prog_data->total_shared <= 64 * 1024); - uint32_t slm_size = 0; - if (prog_data->total_shared > 0) { - /* slm_size is in 4k increments, but must be a power of 2. */ - slm_size = 4 * 1024; - while (slm_size < prog_data->total_shared) - slm_size <<= 1; - slm_size /= 4 * 1024; - } + const uint32_t slm_size = encode_slm_size(GEN_GEN, prog_data->total_shared); struct anv_state state = anv_state_pool_emit(&device->dynamic_state_pool, |