diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/si.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/si.c | 111 |
1 files changed, 108 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c index 1b449291f068..e5e336fd9e94 100644 --- a/drivers/gpu/drm/amd/amdgpu/si.c +++ b/drivers/gpu/drm/amd/amdgpu/si.c @@ -52,6 +52,8 @@ #include "bif/bif_3_0_d.h" #include "bif/bif_3_0_sh_mask.h" +#include "amdgpu_dm.h" + static const u32 tahiti_golden_registers[] = { mmAZALIA_SCLK_CONTROL, 0x00000030, 0x00000011, @@ -1215,10 +1217,100 @@ static bool si_read_bios_from_rom(struct amdgpu_device *adev, return true; } -//xxx: not implemented +static void si_set_clk_bypass_mode(struct amdgpu_device *adev) +{ + u32 tmp, i; + + tmp = RREG32(CG_SPLL_FUNC_CNTL); + tmp |= SPLL_BYPASS_EN; + WREG32(CG_SPLL_FUNC_CNTL, tmp); + + tmp = RREG32(CG_SPLL_FUNC_CNTL_2); + tmp |= SPLL_CTLREQ_CHG; + WREG32(CG_SPLL_FUNC_CNTL_2, tmp); + + for (i = 0; i < adev->usec_timeout; i++) { + if (RREG32(SPLL_STATUS) & SPLL_CHG_STATUS) + break; + udelay(1); + } + + tmp = RREG32(CG_SPLL_FUNC_CNTL_2); + tmp &= ~(SPLL_CTLREQ_CHG | SCLK_MUX_UPDATE); + WREG32(CG_SPLL_FUNC_CNTL_2, tmp); + + tmp = RREG32(MPLL_CNTL_MODE); + tmp &= ~MPLL_MCLK_SEL; + WREG32(MPLL_CNTL_MODE, tmp); +} + +static void si_spll_powerdown(struct amdgpu_device *adev) +{ + u32 tmp; + + tmp = RREG32(SPLL_CNTL_MODE); + tmp |= SPLL_SW_DIR_CONTROL; + WREG32(SPLL_CNTL_MODE, tmp); + + tmp = RREG32(CG_SPLL_FUNC_CNTL); + tmp |= SPLL_RESET; + WREG32(CG_SPLL_FUNC_CNTL, tmp); + + tmp = RREG32(CG_SPLL_FUNC_CNTL); + tmp |= SPLL_SLEEP; + WREG32(CG_SPLL_FUNC_CNTL, tmp); + + tmp = RREG32(SPLL_CNTL_MODE); + tmp &= ~SPLL_SW_DIR_CONTROL; + WREG32(SPLL_CNTL_MODE, tmp); +} + +static int si_gpu_pci_config_reset(struct amdgpu_device *adev) +{ + u32 i; + int r = -EINVAL; + + dev_info(adev->dev, "GPU pci config reset\n"); + + /* set mclk/sclk to bypass */ + si_set_clk_bypass_mode(adev); + /* powerdown spll */ + si_spll_powerdown(adev); + /* disable BM */ + pci_clear_master(adev->pdev); + /* reset */ + amdgpu_device_pci_config_reset(adev); + + udelay(100); + + /* wait for asic to come out of reset */ + for (i = 0; i < adev->usec_timeout; i++) { + if (RREG32(mmCONFIG_MEMSIZE) != 0xffffffff) { + /* enable BM */ + pci_set_master(adev->pdev); + adev->has_hw_reset = true; + r = 0; + break; + } + udelay(1); + } + + return r; +} + static int si_asic_reset(struct amdgpu_device *adev) { - return 0; + int r; + + dev_info(adev->dev, "PCI CONFIG reset\n"); + + amdgpu_atombios_scratch_regs_engine_hung(adev, true); + + r = si_gpu_pci_config_reset(adev); + + amdgpu_atombios_scratch_regs_engine_hung(adev, false); + + return r; } static bool si_asic_supports_baco(struct amdgpu_device *adev) @@ -1247,7 +1339,7 @@ static void si_vga_set_state(struct amdgpu_device *adev, bool state) uint32_t temp; temp = RREG32(CONFIG_CNTL); - if (state == false) { + if (!state) { temp &= ~(1<<0); temp |= (1<<1); } else { @@ -1779,6 +1871,10 @@ static int si_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk) return 0; } +static void si_pre_asic_init(struct amdgpu_device *adev) +{ +} + static const struct amdgpu_asic_funcs si_asic_funcs = { .read_disabled_bios = &si_read_disabled_bios, @@ -1800,6 +1896,7 @@ static const struct amdgpu_asic_funcs si_asic_funcs = .need_reset_on_init = &si_need_reset_on_init, .get_pcie_replay_count = &si_get_pcie_replay_count, .supports_baco = &si_asic_supports_baco, + .pre_asic_init = &si_pre_asic_init, }; static uint32_t si_get_rev_id(struct amdgpu_device *adev) @@ -2546,6 +2643,10 @@ int si_set_ip_blocks(struct amdgpu_device *adev) amdgpu_device_ip_block_add(adev, &si_smu_ip_block); if (adev->enable_virtual_display) amdgpu_device_ip_block_add(adev, &dce_virtual_ip_block); +#if defined(CONFIG_DRM_AMD_DC) && defined(CONFIG_DRM_AMD_DC_SI) + else if (amdgpu_device_has_dc_support(adev)) + amdgpu_device_ip_block_add(adev, &dm_ip_block); +#endif else amdgpu_device_ip_block_add(adev, &dce_v6_0_ip_block); amdgpu_device_ip_block_add(adev, &uvd_v3_1_ip_block); @@ -2560,6 +2661,10 @@ int si_set_ip_blocks(struct amdgpu_device *adev) amdgpu_device_ip_block_add(adev, &si_smu_ip_block); if (adev->enable_virtual_display) amdgpu_device_ip_block_add(adev, &dce_virtual_ip_block); +#if defined(CONFIG_DRM_AMD_DC) && defined(CONFIG_DRM_AMD_DC_SI) + else if (amdgpu_device_has_dc_support(adev)) + amdgpu_device_ip_block_add(adev, &dm_ip_block); +#endif else amdgpu_device_ip_block_add(adev, &dce_v6_4_ip_block); amdgpu_device_ip_block_add(adev, &uvd_v3_1_ip_block); |