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nouveau: use ttm populate mapping functions. (v2)

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Instead of rolling driver copies of them.

v2: cleanup return handling (Ben)

Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200804025632.3868079-4-airlied@gmail.com
This commit is contained in:
Dave Airlie 2020-08-04 12:55:36 +10:00
parent a2d6ddc417
commit bd549d35b4
1 changed files with 2 additions and 36 deletions
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38
drivers/gpu/drm/nouveau/nouveau_bo.c
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@ -1526,8 +1526,6 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
struct ttm_dma_tt *ttm_dma = (void *)ttm; struct ttm_dma_tt *ttm_dma = (void *)ttm;
struct nouveau_drm *drm; struct nouveau_drm *drm;
struct device *dev; struct device *dev;
unsigned i;
int r;
bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
if (ttm->state != tt_unpopulated) if (ttm->state != tt_unpopulated)
@ -1555,31 +1553,7 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
return ttm_dma_populate((void *)ttm, dev, ctx); return ttm_dma_populate((void *)ttm, dev, ctx);
} }
#endif #endif
return ttm_populate_and_map_pages(dev, ttm_dma, ctx);
r = ttm_pool_populate(ttm, ctx);
if (r) {
return r;
}
for (i = 0; i < ttm->num_pages; i++) {
dma_addr_t addr;
addr = dma_map_page(dev, ttm->pages[i], 0, PAGE_SIZE,
DMA_BIDIRECTIONAL);
if (dma_mapping_error(dev, addr)) {
while (i--) {
dma_unmap_page(dev, ttm_dma->dma_address[i],
PAGE_SIZE, DMA_BIDIRECTIONAL);
ttm_dma->dma_address[i] = 0;
}
ttm_pool_unpopulate(ttm);
return -EFAULT;
}
ttm_dma->dma_address[i] = addr;
}
return 0;
} }
static void static void
@ -1588,7 +1562,6 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
struct ttm_dma_tt *ttm_dma = (void *)ttm; struct ttm_dma_tt *ttm_dma = (void *)ttm;
struct nouveau_drm *drm; struct nouveau_drm *drm;
struct device *dev; struct device *dev;
unsigned i;
bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
if (slave) if (slave)
@ -1611,14 +1584,7 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
} }
#endif #endif
for (i = 0; i < ttm->num_pages; i++) { ttm_unmap_and_unpopulate_pages(dev, ttm_dma);
if (ttm_dma->dma_address[i]) {
dma_unmap_page(dev, ttm_dma->dma_address[i], PAGE_SIZE,
DMA_BIDIRECTIONAL);
}
}
ttm_pool_unpopulate(ttm);
} }
void void