include: sbi_scratch: Set per-HART scratch size to 4KB

Currently, the per-HART scratch size is 256 bytes on RV32 and
512 bytes on RV64. This patch set per-HART scratch size to 4KB
(4096 bytes) for both RV32 and RV64 so that we don't run-out
of scratch space anytime soon.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>

diff --git a/include/sbi/sbi_scratch.h b/include/sbi/sbi_scratch.h
index d70c80d..0309349 100644 (file)
--- a/include/sbi/sbi_scratch.h
+++ b/include/sbi/sbi_scratch.h
@@ -36,8 +36,8 @@
 #define SBI_SCRATCH_OPTIONS_OFFSET             (9 * __SIZEOF_POINTER__)
 /** Offset of extra space in sbi_scratch */
 #define SBI_SCRATCH_EXTRA_SPACE_OFFSET         (10 * __SIZEOF_POINTER__)
-/** Maximum size of sbi_scratch */
-#define SBI_SCRATCH_SIZE                       (64 * __SIZEOF_POINTER__)
+/** Maximum size of sbi_scratch (4KB) */
+#define SBI_SCRATCH_SIZE                       (0x1000)
 
 /* clang-format on */