drm/xe/mtl: Disable media GT

Xe incorrectly conflates the concept of 'tile' and 'GT.'  Since MTL's
media support is not yet functioning properly, let's just disable it
completely for now while we fix the fundamental driver design.  Support
for media GTs on platforms like MTL will be re-added later.

v2:
 - Drop some unrelated code cleanup that didn't belong in this patch.
   (Lucas)
v3:
 - Drop unnecessary xe_gt.h include.  (Gustavo)

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://lore.kernel.org/r/20230601215244.678611-2-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_mmio.c b/drivers/gpu/drm/xe/xe_mmio.c
index d3b57669c9a7639a89b24fa080bdd263ed3f3ac9..ef2353eef6fec5913c581632ded68a000808b8a1 100644 (file)
--- a/drivers/gpu/drm/xe/xe_mmio.c
+++ b/drivers/gpu/drm/xe/xe_mmio.c
@@ -340,8 +340,6 @@ static void xe_mmio_probe_tiles(struct xe_device *xe)
        mtcfg = xe_mmio_read64(gt, XEHP_MTCFG_ADDR);
        adj_tile_count = xe->info.tile_count =
                REG_FIELD_GET(TILE_COUNT, mtcfg) + 1;
-       if (xe->info.media_verx100 >= 1300)
-               xe->info.tile_count *= 2;
 
        drm_info(&xe->drm, "tile_count: %d, adj_tile_count %d\n",
                 xe->info.tile_count, adj_tile_count);

diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
index 50027eb642ea60ff54f821163f2cfd89e225befd..c8784f41506edd74241bc4dceff5e16b1e638159 100644 (file)
--- a/drivers/gpu/drm/xe/xe_pci.c
+++ b/drivers/gpu/drm/xe/xe_pci.c
@@ -275,20 +275,10 @@ static const __maybe_unused struct xe_device_desc pvc_desc = {
        .extra_gts = pvc_gts,
 };
 
-static const struct xe_gt_desc xelpmp_gts[] = {
-       {
-               .type = XE_GT_TYPE_MEDIA,
-               .vram_id = 0,
-               .mmio_adj_limit = 0x40000,
-               .mmio_adj_offset = 0x380000,
-       },
-};
-
 static const struct xe_device_desc mtl_desc = {
        /* .graphics and .media determined via GMD_ID */
        .require_force_probe = true,
        PLATFORM(XE_METEORLAKE),
-       .extra_gts = xelpmp_gts,
 };
 
 #undef PLATFORM
@@ -545,8 +535,6 @@ static int xe_info_init(struct xe_device *xe,
         * treats it as the number of GTs rather than just the number of tiles.
         */
        xe->info.tile_count = 1 + graphics_desc->max_remote_tiles;
-       if (MEDIA_VER(xe) >= 13)
-               xe->info.tile_count++;
 
        for (id = 0; id < xe->info.tile_count; ++id) {
                gt = xe->gt + id;