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drm/radeon: add get_allowed_info_register for SI

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Registers that can be fetched from the info ioctl.

Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-10-01 10:03:31 -04:00
parent e66582f9ff
commit 4af692f6e3
4 changed files with 34 additions and 0 deletions
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30
drivers/gpu/drm/radeon/si.c
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@ -1264,6 +1264,36 @@ static void si_init_golden_registers(struct radeon_device *rdev)
}
}
/**
* si_get_allowed_info_register - fetch the register for the info ioctl
*
* @rdev: radeon_device pointer
* @reg: register offset in bytes
* @val: register value
*
* Returns 0 for success or -EINVAL for an invalid register
*
*/
int si_get_allowed_info_register(struct radeon_device *rdev,
u32 reg, u32 *val)
{
switch (reg) {
case GRBM_STATUS:
case GRBM_STATUS2:
case GRBM_STATUS_SE0:
case GRBM_STATUS_SE1:
case SRBM_STATUS:
case SRBM_STATUS2:
case (DMA_STATUS_REG + DMA0_REGISTER_OFFSET):
case (DMA_STATUS_REG + DMA1_REGISTER_OFFSET):
case UVD_STATUS:
*val = RREG32(reg);
return 0;
default:
return -EINVAL;
}
}
#define PCIE_BUS_CLK 10000
#define TCLK (PCIE_BUS_CLK / 10)