panfrost: Allow to pass job dependencies in grid for precomp JM

For indirect draws, we need to depends on some previous job in the chain
so we use the grid info to pass this.

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Olivia Lee <olivia.lee@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35724>

src/gallium/drivers/panfrost/pan_precomp.c

@@ -312,7 +312,8 @@ GENX(panfrost_launch_precomp)(struct panfrost_batch *batch,
       (barrier & PANLIB_BARRIER_JM_SUPPRESS_PREFETCH) != 0;
 
    pan_jc_add_job(&batch->jm.jobs.vtc_jc, MALI_JOB_TYPE_COMPUTE, job_barrier,
-                  suppress_prefetch, 0, 0, &job, false);
+                  suppress_prefetch, grid.jm.local_dep, grid.jm.global_dep,
+                  &job, false);
 #else
    struct cs_builder *b = batch->csf.cs.builder;
 

src/panfrost/libpan/libpan_dgc.h

@@ -15,6 +15,13 @@ enum panlib_barrier {
 
 struct panlib_precomp_grid {
    uint32_t count[3];
+
+   union {
+      struct {
+         uint16_t local_dep;
+         uint16_t global_dep;
+      } jm;
+   };
 };
 
 static struct panlib_precomp_grid
@@ -23,10 +30,26 @@ panlib_3d(uint32_t x, uint32_t y, uint32_t z)
    return (struct panlib_precomp_grid){.count = {x, y, z}};
 }
 
+static struct panlib_precomp_grid
+panlib_3d_with_jm_deps(uint32_t x, uint32_t y, uint32_t z, uint16_t local_dep,
+                       uint16_t global_dep)
+{
+   return (struct panlib_precomp_grid){
+      .count = {x, y, z},
+      .jm = {local_dep, global_dep},
+   };
+}
+
 static struct panlib_precomp_grid
 panlib_1d(uint32_t x)
 {
    return panlib_3d(x, 1, 1);
 }
 
+static struct panlib_precomp_grid
+panlib_1d_with_jm_deps(uint32_t x, uint16_t local_dep, uint16_t global_dep)
+{
+   return panlib_3d_with_jm_deps(x, 1, 1, local_dep, global_dep);
+}
+
 #endif

src/panfrost/vulkan/jm/panvk_vX_cmd_precomp.c

@@ -78,5 +78,6 @@ panvk_per_arch(dispatch_precomp)(struct panvk_precomp_ctx *ctx,
       (barrier & PANLIB_BARRIER_JM_SUPPRESS_PREFETCH) != 0;
 
    pan_jc_add_job(&batch->vtc_jc, MALI_JOB_TYPE_COMPUTE, job_barrier,
-                  suppress_prefetch, 0, 0, &job, false);
+                  suppress_prefetch, grid.jm.local_dep, grid.jm.global_dep,
+                  &job, false);
 }