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ps3fb: GPU memory mapping cleanup

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- 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: linux-fbdev-devel@lists.sourceforge.net
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Geert Uytterhoeven 2009-06-10 04:38:46 +00:00 committed by Benjamin Herrenschmidt
parent 5c6fc8db76
commit e78d0c5c14
1 changed files with 12 additions and 3 deletions
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15
drivers/video/ps3fb.c
View file

@ -32,6 +32,7 @@
#include <linux/init.h>
#include <asm/abs_addr.h>
#include <asm/iommu.h>
#include <asm/lv1call.h>
#include <asm/ps3av.h>
#include <asm/ps3fb.h>
@ -1122,7 +1123,9 @@ static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
xdr_lpar, ps3fb_videomemory.size, 0);
xdr_lpar, ps3fb_videomemory.size,
CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
CBE_IOPTE_M);
if (status) {
dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n",
__func__, status);
@ -1143,12 +1146,12 @@ static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
"%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
__func__, status);
retval = -ENXIO;
goto err_free_irq;
goto err_context_unmap;
}
info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
if (!info)
goto err_free_irq;
goto err_context_unmap;
par = info->par;
par->mode_id = ~ps3fb_mode; /* != ps3fb_mode, to trigger change */
@ -1213,6 +1216,9 @@ err_fb_dealloc:
fb_dealloc_cmap(&info->cmap);
err_framebuffer_release:
framebuffer_release(info);
err_context_unmap:
lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
ps3fb_videomemory.size, CBE_IOPTE_M);
err_free_irq:
free_irq(ps3fb.irq_no, &dev->core);
err_destroy_plug:
@ -1232,6 +1238,7 @@ err:
static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
{
struct fb_info *info = dev->core.driver_data;
u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
@ -1254,6 +1261,8 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
info = dev->core.driver_data = NULL;
}
iounmap((u8 __force __iomem *)ps3fb.dinfo);
lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
ps3fb_videomemory.size, CBE_IOPTE_M);
lv1_gpu_context_free(ps3fb.context_handle);
lv1_gpu_memory_free(ps3fb.memory_handle);
ps3_close_hv_device(dev);