mirror of https://gitee.com/openkylin/linux.git
drm/radeon/cik: add pcie_port indirect register accessors
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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2c67912c43
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@ -78,6 +78,27 @@ extern void si_rlc_fini(struct radeon_device *rdev);
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extern int si_rlc_init(struct radeon_device *rdev);
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static void cik_rlc_stop(struct radeon_device *rdev);
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/*
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* Indirect registers accessor
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*/
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u32 cik_pciep_rreg(struct radeon_device *rdev, u32 reg)
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{
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u32 r;
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WREG32(PCIE_INDEX, reg);
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(void)RREG32(PCIE_INDEX);
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r = RREG32(PCIE_DATA);
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return r;
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}
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void cik_pciep_wreg(struct radeon_device *rdev, u32 reg, u32 v)
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{
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WREG32(PCIE_INDEX, reg);
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(void)RREG32(PCIE_INDEX);
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WREG32(PCIE_DATA, v);
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(void)RREG32(PCIE_DATA);
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}
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/**
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* cik_get_xclk - get the xclk
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*
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@ -35,6 +35,9 @@
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#define CG_CLKPIN_CNTL 0xC05001A0
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# define XTALIN_DIVIDE (1 << 1)
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#define PCIE_INDEX 0x38
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#define PCIE_DATA 0x3C
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#define VGA_HDP_CONTROL 0x328
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#define VGA_MEMORY_DISABLE (1 << 4)
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@ -126,7 +126,11 @@ static void radeon_register_accessor_init(struct radeon_device *rdev)
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rdev->mc_rreg = &rs780_mc_rreg;
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rdev->mc_wreg = &rs780_mc_wreg;
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}
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if (rdev->family >= CHIP_R600) {
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if (rdev->family >= CHIP_BONAIRE) {
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rdev->pciep_rreg = &cik_pciep_rreg;
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rdev->pciep_wreg = &cik_pciep_wreg;
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} else if (rdev->family >= CHIP_R600) {
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rdev->pciep_rreg = &r600_pciep_rreg;
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rdev->pciep_wreg = &r600_pciep_wreg;
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}
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@ -558,5 +558,7 @@ int si_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk);
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*/
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uint64_t cik_get_gpu_clock_counter(struct radeon_device *rdev);
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u32 cik_get_xclk(struct radeon_device *rdev);
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uint32_t cik_pciep_rreg(struct radeon_device *rdev, uint32_t reg);
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void cik_pciep_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
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#endif
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