anv: Fix L3 cache programming on Bay Trail

Valid values for URBAllocation start at 32, so substract that
before programming the register.

This was missed when porting from the GL driver.

Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
index 59430a2..0216ea0 100644 (file)
--- a/src/intel/vulkan/genX_cmd_buffer.c
+++ b/src/intel/vulkan/genX_cmd_buffer.c
@@ -835,7 +835,7 @@ genX(cmd_buffer_config_l3)(struct anv_cmd_buffer *cmd_buffer,
    anv_pack_struct(&l3cr2, GENX(L3CNTLREG2),
                    .SLMEnable = has_slm,
                    .URBLowBandwidth = urb_low_bw,
-                   .URBAllocation = cfg->n[GEN_L3P_URB],
+                   .URBAllocation = cfg->n[GEN_L3P_URB] - n0_urb,
 #if !GEN_IS_HASWELL
                    .ALLAllocation = cfg->n[GEN_L3P_ALL],
 #endif