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| author | Alex Deucher <alexander.deucher@amd.com> | 2014-10-01 18:03:31 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-03-19 19:26:40 +0300 |
| commit | 4af692f6e3b24042bc90b9b9cb1be96d8715345e (patch) | |
| tree | a076abb51ac0375b393be4cda4148d4e9ce9dc31 /drivers/gpu/drm/radeon/si.c | |
| parent | e66582f9ff2fac4c3fddac4f06ebb0e9623485f5 (diff) | |
| download | linux-4af692f6e3b24042bc90b9b9cb1be96d8715345e.tar.xz | |
drm/radeon: add get_allowed_info_register for SI
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>
Diffstat (limited to 'drivers/gpu/drm/radeon/si.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/si.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index e088e5558da0..0d2295fd2844 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -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) |