From: Alex Deucher alexander.deucher@amd.com
Signed-off-by: Alex Deucher alexander.deucher@amd.com --- drivers/gpu/drm/radeon/cik.c | 21 +++++++++++++++++++++ drivers/gpu/drm/radeon/cikd.h | 3 +++ drivers/gpu/drm/radeon/radeon_asic.c | 6 +++++- drivers/gpu/drm/radeon/radeon_asic.h | 2 ++ 4 files changed, 31 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 0db0ebc..e8ea845 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -78,6 +78,27 @@ extern void si_rlc_fini(struct radeon_device *rdev); extern int si_rlc_init(struct radeon_device *rdev); static void cik_rlc_stop(struct radeon_device *rdev);
+/* + * Indirect registers accessor + */ +u32 cik_pciep_rreg(struct radeon_device *rdev, u32 reg) +{ + u32 r; + + WREG32(PCIE_INDEX, reg); + (void)RREG32(PCIE_INDEX); + r = RREG32(PCIE_DATA); + return r; +} + +void cik_pciep_wreg(struct radeon_device *rdev, u32 reg, u32 v) +{ + WREG32(PCIE_INDEX, reg); + (void)RREG32(PCIE_INDEX); + WREG32(PCIE_DATA, v); + (void)RREG32(PCIE_DATA); +} + /** * cik_get_xclk - get the xclk * diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h index f00e273..d23809a 100644 --- a/drivers/gpu/drm/radeon/cikd.h +++ b/drivers/gpu/drm/radeon/cikd.h @@ -35,6 +35,9 @@ #define CG_CLKPIN_CNTL 0xC05001A0 # define XTALIN_DIVIDE (1 << 1)
+#define PCIE_INDEX 0x38 +#define PCIE_DATA 0x3C + #define VGA_HDP_CONTROL 0x328 #define VGA_MEMORY_DISABLE (1 << 4)
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index a2802b47..717b537 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -126,7 +126,11 @@ static void radeon_register_accessor_init(struct radeon_device *rdev) rdev->mc_rreg = &rs780_mc_rreg; rdev->mc_wreg = &rs780_mc_wreg; } - if (rdev->family >= CHIP_R600) { + + if (rdev->family >= CHIP_BONAIRE) { + rdev->pciep_rreg = &cik_pciep_rreg; + rdev->pciep_wreg = &cik_pciep_wreg; + } else if (rdev->family >= CHIP_R600) { rdev->pciep_rreg = &r600_pciep_rreg; rdev->pciep_wreg = &r600_pciep_wreg; } diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 05f75f7..8c19e36 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -558,5 +558,7 @@ int si_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk); */ uint64_t cik_get_gpu_clock_counter(struct radeon_device *rdev); u32 cik_get_xclk(struct radeon_device *rdev); +uint32_t cik_pciep_rreg(struct radeon_device *rdev, uint32_t reg); +void cik_pciep_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
#endif