Commit 33c52752 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/8xx: Inconditionally use task PGDIR in ITLB misses 



Now that modules exec page tables are preallocated, the instruction
TLBmiss handler can use task PGDIR inconditionally.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/774fd766a8b9bcb9173b5e677d5dad0df2d3970f.1724173828.git.christophe.leroy@csgroup.eu
parent 16a71c04

arch/powerpc/kernel/head_8xx.S

+0 −11
Original line number Diff line number Diff line
@@ -199,18 +199,7 @@ instruction_counter: 
	mfspr	r10, SPRN_SRR0	/* Get effective address of fault */

	INVALIDATE_ADJACENT_PAGES_CPU15(r10, r11)

	mtspr	SPRN_MD_EPN, r10

#ifdef CONFIG_EXECMEM

	mfcr	r11

	compare_to_kernel_boundary r10, r10

#endif

	mfspr	r10, SPRN_M_TWB	/* Get level 1 table */

#ifdef CONFIG_EXECMEM

	blt+	3f

	rlwinm	r10, r10, 0, 20, 31

	oris	r10, r10, (swapper_pg_dir - PAGE_OFFSET)@ha

3:

	mtcr	r11

#endif

	lwz	r11, (swapper_pg_dir-PAGE_OFFSET)@l(r10)	/* Get level 1 entry */

	mtspr	SPRN_MD_TWC, r11

	mfspr	r10, SPRN_MD_TWC