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drm/radeon: add a asic callback to get the xclk

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This is required to get the reference clock used
by the gfx engine for things like timestamps. Fixes
support for GL extensions the use timestamps on
certain boards.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-02-14 10:04:02 -05:00
parent 0e34d0945e
commit 454d2e2a32
9 changed files with 93 additions and 1 deletions
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4
drivers/gpu/drm/radeon/rv770d.h
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@ -128,6 +128,10 @@
#define GUI_ACTIVE (1<<31)
#define GRBM_STATUS2 0x8014
#define CG_CLKPIN_CNTL 0x660
# define MUX_TCLK_TO_XCLK (1 << 8)
# define XTALIN_DIVIDE (1 << 9)
#define CG_MULT_THERMAL_STATUS 0x740
#define ASIC_T(x) ((x) << 16)
#define ASIC_T_MASK 0x3FF0000