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| author | Geoff Levand <geoffrey.levand@am.sony.com> | 2009-01-07 17:22:07 -0800 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-01-08 16:25:15 +1100 |
| commit | 2efd72af0f18860927084df618f7419c82f69be3 (patch) | |
| tree | 7409fa1d06a6463787c3cb5283c21243e95e6291 /drivers/mtd | |
| parent | 60c0c5987b0996a7c7c4c6d90f63ed413c368a71 (diff) | |
| download | linux-3.10-2efd72af0f18860927084df618f7419c82f69be3.tar.gz linux-3.10-2efd72af0f18860927084df618f7419c82f69be3.tar.bz2 linux-3.10-2efd72af0f18860927084df618f7419c82f69be3.zip | |
mtd/ps3vram: Use _PAGE_NO_CACHE in memory ioremap
Use _PAGE_NO_CACHE for gpu memory ioremap. Also,
add __iomem attribute to gpu memory pointer and
change use of memset() to memset_io().
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/devices/ps3vram.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c index d5924142d90..d21e9beb7ed 100644 --- a/drivers/mtd/devices/ps3vram.c +++ b/drivers/mtd/devices/ps3vram.c @@ -6,6 +6,7 @@ */ #include <linux/io.h> +#include <linux/mm.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/list.h> @@ -69,7 +70,7 @@ struct ps3vram_priv { u64 context_handle; u32 *ctrl; u32 *reports; - u8 *base; + u8 __iomem *ddr_base; u8 *xdr_buf; u32 *fifo_base; @@ -425,7 +426,7 @@ static int ps3vram_erase(struct mtd_info *mtd, struct erase_info *instr) ps3vram_cache_flush(mtd); /* Set bytes to 0xFF */ - memset(priv->base + instr->addr, 0xFF, instr->len); + memset_io(priv->ddr_base + instr->addr, 0xFF, instr->len); mutex_unlock(&priv->lock); @@ -628,8 +629,9 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev) goto out_free_context; } - priv->base = ioremap(ddr_lpar, ddr_size); - if (!priv->base) { + priv->ddr_base = ioremap_flags(ddr_lpar, ddr_size, _PAGE_NO_CACHE); + + if (!priv->ddr_base) { dev_err(&dev->core, "%s:%d: ioremap failed\n", __func__, __LINE__); ret = -ENOMEM; @@ -702,7 +704,7 @@ out_unmap_reports: out_unmap_ctrl: iounmap(priv->ctrl); out_unmap_vram: - iounmap(priv->base); + iounmap(priv->ddr_base); out_free_context: lv1_gpu_context_free(priv->context_handle); out_free_memory: @@ -728,7 +730,7 @@ static int ps3vram_shutdown(struct ps3_system_bus_device *dev) ps3vram_cache_cleanup(&ps3vram_mtd); iounmap(priv->reports); iounmap(priv->ctrl); - iounmap(priv->base); + iounmap(priv->ddr_base); lv1_gpu_context_free(priv->context_handle); lv1_gpu_memory_free(priv->memory_handle); ps3_close_hv_device(dev); |