On Thu, Jun 05, 2014 at 09:24:02AM +0200, Geert Uytterhoeven wrote:
> On Thu, Jun 5, 2014 at 2:05 AM, Rob Clark <robdclark@xxxxxxxxx> wrote:
> > On Wed, Jun 4, 2014 at 6:54 AM, Matwey V. Kornilov <matwey@xxxxxxxxxx> wrote:
> >> From e7147352639fd8f92b1cc85cff9bc5046c7a2130 Mon Sep 17 00:00:00 2001
> >> From: "Matwey V. Kornilov" <matwey.kornilov@xxxxxxxxx>
> >> Date: Mon, 2 Jun 2014 20:17:29 +0400
> >> Subject: [PATCH] Replace type of paddr to uint32_t.
> >>
> >> This patch helps to avoid the following build issue:
> >>
> >> drivers/gpu/drm/msm/msm_fbdev.c:108:2: error: passing argument 3 of
> >> 'msm_gem_get_iova_locked' from incompatible pointer type [-Werror]
> >> msm_gem_get_iova_locked(fbdev->bo, 0, &paddr);
> >> ^
> >> In file included from drivers/gpu/drm/msm/msm_fbdev.c:18:0:
> >> drivers/gpu/drm/msm/msm_drv.h:153:5: note: expected 'uint32_t *' but
> >> argument is of type 'dma_addr_t *'
> >> int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
> >> ^
> >>
> >> Signed-off-by: Matwey V. Kornilov <matwey@xxxxxxxxxx>
> >
> > Reviewed-by: Rob Clark <robdclark@xxxxxxxxx>
>
> Perhaps the uint32_t should become dma_addr_t instead?
>
> drivers/gpu/drm/msm/msm_gem.h has:
>
> struct {
> // XXX
> uint32_t iova;
> } domain[NUM_DOMAINS];
>
> (note the "XXX").
I agree, dma_addr_t is the proper type for I/O virtual addresses.
Thierry
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