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| author | Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> | 2009-06-10 06:38:47 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-15 05:26:20 +0200 |
| commit | 56ac72dba5d24a477d281b985797d5e62d3f5c2e (patch) | |
| tree | d2eba5567ba763b054f8c185b209b81bb35381da /drivers | |
| parent | ps3fb: GPU memory mapping cleanup (diff) | |
| download | linux-56ac72dba5d24a477d281b985797d5e62d3f5c2e.tar.xz linux-56ac72dba5d24a477d281b985797d5e62d3f5c2e.zip | |
ps3vram: GPU memory mapping cleanup
- Make the IOMMU flags used for mapping main memory into the GPU's I/O space
explicit, instead of relying on the default in the hypervisor,
- Add missing calls to lv1_gpu_context_iomap(..., CBE_IOPTE_M) to unmap the
memory during cleanup.
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Jim Paris <jim@jtan.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/ps3vram.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c index 3c9ad1959a69..83c14533aea5 100644 --- a/drivers/block/ps3vram.c +++ b/drivers/block/ps3vram.c @@ -14,6 +14,7 @@ #include <linux/seq_file.h> #include <asm/firmware.h> +#include <asm/iommu.h> #include <asm/lv1call.h> #include <asm/ps3.h> @@ -603,8 +604,8 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev) int error, status; struct request_queue *queue; struct gendisk *gendisk; - u64 ddr_lpar, ctrl_lpar, info_lpar, reports_lpar, ddr_size, - reports_size; + u64 ddr_size, ddr_lpar, ctrl_lpar, info_lpar, reports_lpar, + reports_size, xdr_lpar; char *rest; priv = kzalloc(sizeof(*priv), GFP_KERNEL); @@ -675,9 +676,11 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev) } /* Map XDR buffer to RSX */ + xdr_lpar = ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)); status = lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF, - ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)), - XDR_BUF_SIZE, 0); + xdr_lpar, XDR_BUF_SIZE, + CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | + CBE_IOPTE_M); if (status) { dev_err(&dev->core, "lv1_gpu_context_iomap failed %d\n", status); @@ -690,7 +693,7 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev) if (!priv->ddr_base) { dev_err(&dev->core, "ioremap DDR failed\n"); error = -ENOMEM; - goto out_free_context; + goto out_unmap_context; } priv->ctrl = ioremap(ctrl_lpar, 64 * 1024); @@ -776,6 +779,9 @@ out_unmap_ctrl: iounmap(priv->ctrl); out_unmap_vram: iounmap(priv->ddr_base); +out_unmap_context: + lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF, xdr_lpar, + XDR_BUF_SIZE, CBE_IOPTE_M); out_free_context: lv1_gpu_context_free(priv->context_handle); out_free_memory: @@ -803,6 +809,9 @@ static int ps3vram_remove(struct ps3_system_bus_device *dev) iounmap(priv->reports); iounmap(priv->ctrl); iounmap(priv->ddr_base); + lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF, + ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)), + XDR_BUF_SIZE, CBE_IOPTE_M); lv1_gpu_context_free(priv->context_handle); lv1_gpu_memory_free(priv->memory_handle); ps3_close_hv_device(dev); |