broadcom: move HW-dependant constants to v3d_device_info

Right now we have some HW-dependant constants that we are accessing
using the same mechanism that some hw-dependant functions, through a
macro (V3DV_X macro).

But this means that each time that we need to get those constant
values, we need to do a hw version check. Also, right now both the
macro and the defines with each HW value are duplicated on v3d and
v3dv. Also that macro is ugly and has a ugly name.

This commit moves those values to the already common v3d_device_info
structure.

Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29535>

src/broadcom/common/v3d_device_info.c

@@ -71,15 +71,22 @@ v3d_get_device_info(int fd, struct v3d_device_info* devinfo, v3d_ioctl_fun drm_i
     devinfo->has_accumulators = devinfo->ver < 71;
 
     switch (devinfo->ver) {
-        case 42:
-        case 71:
-                break;
-        default:
-                fprintf(stderr,
-                        "V3D %d.%d not supported by this version of Mesa.\n",
-                        devinfo->ver / 10,
-                        devinfo->ver % 10);
-                return false;
+    case 42:
+            devinfo->clipper_xy_granularity = 256.0f;
+            devinfo->cle_readahead = 256u;
+            devinfo->cle_buffer_min_size = 4096u;
+            break;
+    case 71:
+            devinfo->clipper_xy_granularity = 64.0f;
+            devinfo->cle_readahead = 1024u;
+            devinfo->cle_buffer_min_size = 16384u;
+            break;
+    default:
+            fprintf(stderr,
+                    "V3D %d.%d not supported by this version of Mesa.\n",
+                    devinfo->ver / 10,
+                    devinfo->ver % 10);
+            return false;
     }
 
     ret = drm_ioctl(fd, DRM_IOCTL_V3D_GET_PARAM, &hub_ident3);

src/broadcom/common/v3d_device_info.h

@@ -51,6 +51,20 @@ struct v3d_device_info {
 
         /** If the hw has accumulator registers */
         bool has_accumulators;
+
+        /** Granularity for the Clipper XY Scaling */
+        float clipper_xy_granularity;
+
+        /** The Control List Executor (CLE) pre-fetches V3D_CLE_READAHEAD
+         *  bytes from the Control List buffer. The usage of these last bytes
+         *  should be avoided or the CLE would pre-fetch the data after the
+         *  end of the CL buffer, reporting the kernel "MMU error from client
+         *  CLE".
+         */
+        uint32_t cle_readahead;
+
+        /** Minimum size for a buffer storing the Control List Executor (CLE) */
+        uint32_t cle_buffer_min_size;
 };
 
 typedef int (*v3d_ioctl_fun)(int fd, unsigned long request, void *arg);