powerpc/64: Move MMU backend selection out of platform code

We move it into early_mmu_init() based on firmware features. For PS3,
we have to move the setting of these into early_init_devtree().

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

7 files changed, 9 insertions, 26 deletions

diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index 36cff28d0293..e342f7833db5 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -261,7 +261,6 @@ static int __init cell_probe(void)
 	    !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
 		return 0;
 
-	hpte_init_native();
 	pm_power_off = rtas_power_off;
 
 	return 1;
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index 99b9b96ab059..b1ecd991a0fb 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -306,7 +306,6 @@ static int __init maple_probe(void)
 	    !of_flat_dt_is_compatible(root, "Momentum,Apache"))
 		return 0;
 
-	hpte_init_native();
 	pm_power_off = maple_power_off;
 
 	return 1;
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index 7349644c9828..924d01d9b375 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -426,8 +426,6 @@ static int __init pas_probe(void)
 	    !of_flat_dt_is_compatible(root, "pasemi,pwrficient"))
 		return 0;
 
-	hpte_init_native();
-
 	alloc_iobmap_l2();
 
 	return 1;
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 4ad61687c670..795bf8cfddd9 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -599,10 +599,6 @@ static int __init pmac_probe(void)
 	    !of_flat_dt_is_compatible(root, "MacRISC"))
 		return 0;
 
-#ifdef CONFIG_PPC64
-	hpte_init_native();
-#endif
-
 #ifdef CONFIG_PPC32
 	/* isa_io_base gets set in pmac_pci_init */
 	ISA_DMA_THRESHOLD = ~0L;
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index 8492bbbcfc08..f70ea83502b2 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -273,11 +273,6 @@ static int __init pnv_probe(void)
 	if (!of_flat_dt_is_compatible(root, "ibm,powernv"))
 		return 0;
 
-	if (IS_ENABLED(CONFIG_PPC_RADIX_MMU) && radix_enabled())
-		radix_init_native();
-	else if (IS_ENABLED(CONFIG_PPC_STD_MMU_64))
-		hpte_init_native();
-
 	if (firmware_has_feature(FW_FEATURE_OPAL))
 		pnv_setup_machdep_opal();
 
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 486ecd017535..b7fdf88474e8 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -226,9 +226,17 @@ static void __init ps3_progress(char *s, unsigned short hex)
 	printk("*** %04x : %s\n", hex, s ? s : "");
 }
 
-static int __init ps3_probe(void)
+void __init ps3_early_mm_init(void)
 {
 	unsigned long htab_size;
+
+	ps3_mm_init();
+	ps3_mm_vas_create(&htab_size);
+	ps3_hpte_init(htab_size);
+}
+
+static int __init ps3_probe(void)
+{
 	unsigned long dt_root;
 
 	DBG(" -> %s:%d\n", __func__, __LINE__);
@@ -237,12 +245,7 @@ static int __init ps3_probe(void)
 	if (!of_flat_dt_is_compatible(dt_root, "sony,ps3"))
 		return 0;
 
-	powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE;
-
 	ps3_os_area_save_params();
-	ps3_mm_init();
-	ps3_mm_vas_create(&htab_size);
-	ps3_hpte_init(htab_size);
 	pm_power_off = ps3_power_off;
 
 	DBG(" <- %s:%d\n", __func__, __LINE__);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index ba7dc126b5e5..240721348ebc 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -687,13 +687,6 @@ static int __init pSeries_probe(void)
 	    of_flat_dt_is_compatible(root, "IBM,CBEA"))
 		return 0;
 
-	pr_debug("pSeries detected, looking for LPAR capability...\n");
-
-	if (firmware_has_feature(FW_FEATURE_LPAR))
-		hpte_init_lpar();
-	else
-		hpte_init_native();
-
 	pm_power_off = pseries_power_off;
 
 	pr_debug("Machine is%s LPAR !\n",