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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
commitcf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch)
tree757a3d280760c654767631cab5ad8af2d86d1848 /arch/sh/mm/pgtable.c
downloadlinux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz
linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ...
Diffstat (limited to 'arch/sh/mm/pgtable.c')
-rw-r--r--arch/sh/mm/pgtable.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/sh/mm/pgtable.c b/arch/sh/mm/pgtable.c
new file mode 100644
index 000000000..3a4085ea0
--- /dev/null
+++ b/arch/sh/mm/pgtable.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/mm.h>
+#include <linux/slab.h>
+
+#include <asm/pgalloc.h>
+
+static struct kmem_cache *pgd_cachep;
+#if PAGETABLE_LEVELS > 2
+static struct kmem_cache *pmd_cachep;
+#endif
+
+static void pgd_ctor(void *x)
+{
+ pgd_t *pgd = x;
+
+ memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
+ memcpy(pgd + USER_PTRS_PER_PGD,
+ swapper_pg_dir + USER_PTRS_PER_PGD,
+ (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
+}
+
+void pgtable_cache_init(void)
+{
+ pgd_cachep = kmem_cache_create("pgd_cache",
+ PTRS_PER_PGD * (1<<PTE_MAGNITUDE),
+ PAGE_SIZE, SLAB_PANIC, pgd_ctor);
+#if PAGETABLE_LEVELS > 2
+ pmd_cachep = kmem_cache_create("pmd_cache",
+ PTRS_PER_PMD * (1<<PTE_MAGNITUDE),
+ PAGE_SIZE, SLAB_PANIC, NULL);
+#endif
+}
+
+pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+ return kmem_cache_alloc(pgd_cachep, GFP_KERNEL);
+}
+
+void pgd_free(struct mm_struct *mm, pgd_t *pgd)
+{
+ kmem_cache_free(pgd_cachep, pgd);
+}
+
+#if PAGETABLE_LEVELS > 2
+void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+ set_pud(pud, __pud((unsigned long)pmd));
+}
+
+pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+ return kmem_cache_alloc(pmd_cachep, GFP_KERNEL | __GFP_ZERO);
+}
+
+void pmd_free(struct mm_struct *mm, pmd_t *pmd)
+{
+ kmem_cache_free(pmd_cachep, pmd);
+}
+#endif /* PAGETABLE_LEVELS > 2 */