Cleaning up ast's MM code with ast_mm_fini() resets the write-combine flags on the VRAM I/O memory. Drop ast_mm_fini() in favor of an auto- release callback. Releasing the device also executes the callback.
Signed-off-by: Thomas Zimmermann tzimmermann@suse.de --- drivers/gpu/drm/ast/ast_drv.h | 1 - drivers/gpu/drm/ast/ast_main.c | 1 - drivers/gpu/drm/ast/ast_mm.c | 23 ++++++++++++----------- 3 files changed, 12 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h index 9a770e5b36d1..e3a264ac7ee2 100644 --- a/drivers/gpu/drm/ast/ast_drv.h +++ b/drivers/gpu/drm/ast/ast_drv.h @@ -291,7 +291,6 @@ int ast_mode_config_init(struct ast_private *ast); #define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)
int ast_mm_init(struct ast_private *ast); -void ast_mm_fini(struct ast_private *ast);
/* ast post */ void ast_enable_vga(struct drm_device *dev); diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index 87e5baded2a7..dd12b55d57a2 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -452,6 +452,5 @@ void ast_driver_unload(struct drm_device *dev) ast_release_firmware(dev); kfree(ast->dp501_fw_addr);
- ast_mm_fini(ast); kfree(ast); } diff --git a/drivers/gpu/drm/ast/ast_mm.c b/drivers/gpu/drm/ast/ast_mm.c index aaeb19d01052..9186ec3ebbe0 100644 --- a/drivers/gpu/drm/ast/ast_mm.c +++ b/drivers/gpu/drm/ast/ast_mm.c @@ -28,8 +28,9 @@
#include <linux/pci.h>
-#include <drm/drm_print.h> #include <drm/drm_gem_vram_helper.h> +#include <drm/drm_managed.h> +#include <drm/drm_print.h>
#include "ast_drv.h"
@@ -73,6 +74,15 @@ static u32 ast_get_vram_size(struct ast_private *ast) return vram_size; }
+static void ast_mm_release(struct drm_device *dev, void *ptr) +{ + struct ast_private *ast = to_ast_private(dev); + + arch_phys_wc_del(ast->fb_mtrr); + arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0)); +} + int ast_mm_init(struct ast_private *ast) { u32 vram_size; @@ -93,14 +103,5 @@ int ast_mm_init(struct ast_private *ast) ast->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0));
- return 0; -} - -void ast_mm_fini(struct ast_private *ast) -{ - struct drm_device *dev = ast->dev; - - arch_phys_wc_del(ast->fb_mtrr); - arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), - pci_resource_len(dev->pdev, 0)); + return drmm_add_action_or_reset(dev, ast_mm_release, NULL); }