Re: [PATCH v1 04/11] drm/ati_pcigart: drop dependency on drm_os_linux.h

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On Thu, Jul 18, 2019 at 06:15:00PM +0200, Sam Ravnborg wrote:
> The drm_os_linux.h header is deprecated.
> Just opencode the sole DRM_WRITE32().

Any plans for the other users of DRM_WRITE<N>()? It seems like it'd be trivial
to fix it up for via and mga. I don't really have any background on
drm_os_linux.h, but it doesn't seem like it'd be that much more effort to just
remove the whole thing.

Sean

> 
> Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> Cc: Maxime Ripard <maxime.ripard@xxxxxxxxxxx>
> Cc: Sean Paul <sean@xxxxxxxxxx>
> Cc: David Airlie <airlied@xxxxxxxx>
> Cc: Daniel Vetter <daniel@xxxxxxxx>
> ---
>  drivers/gpu/drm/ati_pcigart.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/ati_pcigart.c b/drivers/gpu/drm/ati_pcigart.c
> index 2a413e291a60..580aa2676358 100644
> --- a/drivers/gpu/drm/ati_pcigart.c
> +++ b/drivers/gpu/drm/ati_pcigart.c
> @@ -35,7 +35,6 @@
>  
>  #include <drm/ati_pcigart.h>
>  #include <drm/drm_device.h>
> -#include <drm/drm_os_linux.h>
>  #include <drm/drm_pci.h>
>  #include <drm/drm_print.h>
>  
> @@ -169,6 +168,7 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
>  		page_base = (u32) entry->busaddr[i];
>  
>  		for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
> +			u32 offset;
>  			u32 val;
>  
>  			switch(gart_info->gart_reg_if) {
> @@ -184,10 +184,12 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
>  				break;
>  			}
>  			if (gart_info->gart_table_location ==
> -			    DRM_ATI_GART_MAIN)
> +			    DRM_ATI_GART_MAIN) {
>  				pci_gart[gart_idx] = cpu_to_le32(val);
> -			else
> -				DRM_WRITE32(map, gart_idx * sizeof(u32), val);
> +			} else {
> +				offset = gart_idx * sizeof(u32);
> +				writel(val, (void __iomem *)map->handle + offset);
> +			}
>  			gart_idx++;
>  			page_base += ATI_PCIGART_PAGE_SIZE;
>  		}
> -- 
> 2.20.1
> 

-- 
Sean Paul, Software Engineer, Google / Chromium OS
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