From 73da27bf4604ed56a79eeedcb157e50b460d97c8 Mon Sep 17 00:00:00 2001 From: Matthew Auld Date: Wed, 22 May 2024 11:21:57 +0100 Subject: [PATCH] drm/xe/mmio: move mmio_fini over to devm [ Upstream commit a0b834c8957a7d2848face008a12382a0ad11ffc ] Not valid to touch mmio once the device is removed, so make sure we unmap on removal and not just when driver instance goes away. Also set the mmio pointers to NULL to hopefully catch such issues more easily. Signed-off-by: Matthew Auld Cc: Andrzej Hajda Cc: Rodrigo Vivi Reviewed-by: Andrzej Hajda Link: https://patchwork.freedesktop.org/patch/msgid/20240522102143.128069-32-matthew.auld@intel.com Stable-dep-of: 15939ca77d44 ("drm/xe: Fix tile fini sequence") Signed-off-by: Sasha Levin --- drivers/gpu/drm/xe/xe_mmio.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_mmio.c b/drivers/gpu/drm/xe/xe_mmio.c index 334637511e750..2ebb2f0d6874e 100644 --- a/drivers/gpu/drm/xe/xe_mmio.c +++ b/drivers/gpu/drm/xe/xe_mmio.c @@ -386,13 +386,16 @@ add_mmio_ext: } } -static void mmio_fini(struct drm_device *drm, void *arg) +static void mmio_fini(void *arg) { struct xe_device *xe = arg; pci_iounmap(to_pci_dev(xe->drm.dev), xe->mmio.regs); if (xe->mem.vram.mapping) iounmap(xe->mem.vram.mapping); + + xe->mem.vram.mapping = NULL; + xe->mmio.regs = NULL; } int xe_mmio_init(struct xe_device *xe) @@ -417,7 +420,7 @@ int xe_mmio_init(struct xe_device *xe) root_tile->mmio.size = SZ_16M; root_tile->mmio.regs = xe->mmio.regs; - return drmm_add_action_or_reset(&xe->drm, mmio_fini, xe); + return devm_add_action_or_reset(xe->drm.dev, mmio_fini, xe); } u8 xe_mmio_read8(struct xe_gt *gt, struct xe_reg reg) -- 2.47.3