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authorChristophe Leroy2021-04-01 13:30:42 +0000
committerMichael Ellerman2021-04-14 23:04:13 +1000
commit9132a2e82adc6e5a1c7c7385df3bfb25576bdd80 (patch)
treecb94189f8abacd60819c9cb0e741b85744e59642 /arch/powerpc/include/asm/nohash
parent2ec13df167040cd153c25c4d96d0ffc573ac4c40 (diff)
powerpc/8xx: Define a MODULE area below kernel text
On the 8xx, TASK_SIZE is 0x80000000. The space between TASK_SIZE and PAGE_OFFSET is not used. In order to benefit from the powerpc specific module_alloc() function which allocate modules with 32 Mbytes from end of kernel text, define MODULES_VADDR and MODULES_END. Set a 256Mb area just below PAGE_OFFSET, like book3s/32. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/a225606d5b3a8bc53fe612ad52c855c60b0a0a58.1617283827.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/nohash')
-rw-r--r--arch/powerpc/include/asm/nohash/32/mmu-8xx.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
index 478249959baa..6e4faa0a9b35 100644
--- a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
+++ b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
@@ -172,6 +172,9 @@
#define mmu_linear_psize MMU_PAGE_8M
+#define MODULES_VADDR (PAGE_OFFSET - SZ_256M)
+#define MODULES_END PAGE_OFFSET
+
#ifndef __ASSEMBLY__
#include <linux/mmdebug.h>