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drm/vmwgfx: use *_32_bits() macros 

Use the upper_32_bits() macro instead of the four line equivalent that
triggers a GCC warning on 32 bits x86:
    drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c: In function 'vmw_cmdbuf_header_submit':
    drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c:297:25: warning: right shift count >= width of type [-Wshift-count-overflow]
       val = (header->handle >> 32);
                             ^

And use the lower_32_bits() macro instead of and-ing with a 32 bits
mask.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1457000770-2317-1-git-send-email-pebolle@tiscali.nl
This commit is contained in:
Paul Bolle 2016-03-03 11:26:10 +01:00 committed by Daniel Vetter
parent db5dfef712
commit 0e7c875d1a
1 changed files with 2 additions and 5 deletions
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7
drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c
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@ -293,13 +293,10 @@ static int vmw_cmdbuf_header_submit(struct vmw_cmdbuf_header *header)
struct vmw_cmdbuf_man *man = header->man;
u32 val;
if (sizeof(header->handle) > 4)
val = (header->handle >> 32);
else
val = 0;
val = upper_32_bits(header->handle);
vmw_write(man->dev_priv, SVGA_REG_COMMAND_HIGH, val);
val = (header->handle & 0xFFFFFFFFULL);
val = lower_32_bits(header->handle);
val |= header->cb_context & SVGA_CB_CONTEXT_MASK;
vmw_write(man->dev_priv, SVGA_REG_COMMAND_LOW, val);