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authorDave Airlie <airlied@redhat.com>2009-11-17 06:29:46 +1000
committerDave Airlie <airlied@redhat.com>2009-12-08 07:33:04 +1000
commitd904ef9b00a4473af16766e99f17bdbb5f0fde65 (patch)
treee9b5263b223cf5d20f189aad922f79c1ccbfd9c2 /drivers/gpu/drm/radeon/atom.c
parentf84676185368e36c6bc0eeab87ab73ed39042648 (diff)
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drm/radeon/kms: add support to atom parser for FB read/write
FB read/write really doesn't need to access the actual VRAM, we can just use a scratch area. This is required for using atom displayport calls later. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atom.c')
-rw-r--r--drivers/gpu/drm/radeon/atom.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
index d67c42555ab..85abc0850e7 100644
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -263,10 +263,10 @@ static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
case ATOM_ARG_FB:
idx = U8(*ptr);
(*ptr)++;
+ val = gctx->scratch[((gctx->fb_base + idx) / 4)];
if (print)
DEBUG("FB[0x%02X]", idx);
- printk(KERN_INFO "FB access is not implemented.\n");
- return 0;
+ break;
case ATOM_ARG_IMM:
switch (align) {
case ATOM_SRC_DWORD:
@@ -488,9 +488,9 @@ static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
case ATOM_ARG_FB:
idx = U8(*ptr);
(*ptr)++;
+ gctx->scratch[((gctx->fb_base + idx) / 4)] = val;
DEBUG("FB[0x%02X]", idx);
- printk(KERN_INFO "FB access is not implemented.\n");
- return;
+ break;
case ATOM_ARG_PLL:
idx = U8(*ptr);
(*ptr)++;