[PATCH] drm/xe/pf: remove code guarded by nonexistent config option

[Ethan Nelson-Moore <enelsonmoore@gmail.com>]

Some code in drivers/gpu/drm/xe/xe_lmtt_2l.c depends on
CONFIG_DRM_XE_LMTT_2L_128GB, which has never been defined in the
kernel. Remove this dead code and correct a related comment.

Discovered while searching for CONFIG_* symbols referenced in code but
not defined in any Kconfig file.

Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
---
 drivers/gpu/drm/xe/xe_lmtt_2l.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_lmtt_2l.c b/drivers/gpu/drm/xe/xe_lmtt_2l.c
index 84bc5c4212b5..707e0d090c62 100644
--- a/drivers/gpu/drm/xe/xe_lmtt_2l.c
+++ b/drivers/gpu/drm/xe/xe_lmtt_2l.c
@@ -14,9 +14,9 @@
 /**
  * DOC: Two-Level LMTT Structure
  *
- * LMHAW (Local Memory Host Address Width) is 37 bit (128GB)
+ * LMHAW (Local Memory Host Address Width) is 35 bit (32GB)
  *
- * LMGAW (Local Memory Guest Address Width) is 37 bit (128GB)
+ * LMGAW (Local Memory Guest Address Width) is 35 bit (32GB)
  *
  * The following figure illustrates the structure and function of the 2L LMTT::
  *
@@ -54,11 +54,7 @@
 typedef u32 lmtt_2l_pde_t;
 typedef u32 lmtt_2l_pte_t;
 
-#if IS_ENABLED(CONFIG_DRM_XE_LMTT_2L_128GB)
-#define LMTT_2L_HAW			37 /* 128 GiB */
-#else
 #define LMTT_2L_HAW			35 /* 32 GiB */
-#endif
 
 #define LMTT_2L_PDE_MAX_NUM		64 /* SRIOV with PF and 63 VFs, index 0 (PF) is unused */
 #define LMTT_2L_PDE_LMTT_PTR		GENMASK(LMTT_2L_HAW - 13, 4)
@@ -79,7 +75,6 @@ static unsigned int lmtt_2l_pte_num(unsigned int level)
 	case 1:
 		return LMTT_2L_PDE_MAX_NUM;
 	case 0:
-		BUILD_BUG_ON(LMTT_2L_HAW == 37 && LMTT_2L_PTE_MAX_NUM != SZ_64K);
 		BUILD_BUG_ON(LMTT_2L_HAW == 35 && LMTT_2L_PTE_MAX_NUM != SZ_16K);
 		return LMTT_2L_PTE_MAX_NUM;
 	default:
-- 
2.43.0