diff options
Diffstat (limited to 'drivers/gpu/drm/radeon')
| -rw-r--r-- | drivers/gpu/drm/radeon/rs600.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c index 84b26376027d..6364ba1d4153 100644 --- a/drivers/gpu/drm/radeon/rs600.c +++ b/drivers/gpu/drm/radeon/rs600.c @@ -60,6 +60,107 @@ int rs600_mc_init(struct radeon_device *rdev) return r; return 0; } + +/* hpd for digital panel detect/disconnect */ +bool rs600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd) +{ + u32 tmp; + bool connected = false; + + switch (hpd) { + case RADEON_HPD_1: + tmp = RREG32(R_007D04_DC_HOT_PLUG_DETECT1_INT_STATUS); + if (G_007D04_DC_HOT_PLUG_DETECT1_SENSE(tmp)) + connected = true; + break; + case RADEON_HPD_2: + tmp = RREG32(R_007D14_DC_HOT_PLUG_DETECT2_INT_STATUS); + if (G_007D14_DC_HOT_PLUG_DETECT2_SENSE(tmp)) + connected = true; + break; + default: + break; + } + return connected; +} + +void rs600_hpd_set_polarity(struct radeon_device *rdev, + enum radeon_hpd_id hpd) +{ + u32 tmp; + bool connected = rs600_hpd_sense(rdev, hpd); + + switch (hpd) { + case RADEON_HPD_1: + tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL); + if (connected) + tmp &= ~S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1); + else + tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1); + WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp); + break; + case RADEON_HPD_2: + tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL); + if (connected) + tmp &= ~S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1); + else + tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1); + WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp); + break; + default: + break; + } +} + +void rs600_hpd_init(struct radeon_device *rdev) +{ + struct drm_device *dev = rdev->ddev; + struct drm_connector *connector; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + struct radeon_connector *radeon_connector = to_radeon_connector(connector); + switch (radeon_connector->hpd.hpd) { + case RADEON_HPD_1: + WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL, + S_007D00_DC_HOT_PLUG_DETECT1_EN(1)); + rdev->irq.hpd[0] = true; + break; + case RADEON_HPD_2: + WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL, + S_007D10_DC_HOT_PLUG_DETECT2_EN(1)); + rdev->irq.hpd[1] = true; + break; + default: + break; + } + } + rs600_irq_set(rdev); +} + +void rs600_hpd_fini(struct radeon_device *rdev) +{ + struct drm_device *dev = rdev->ddev; + struct drm_connector *connector; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + struct radeon_connector *radeon_connector = to_radeon_connector(connector); + switch (radeon_connector->hpd.hpd) { + case RADEON_HPD_1: + WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL, + S_007D00_DC_HOT_PLUG_DETECT1_EN(0)); + rdev->irq.hpd[0] = false; + break; + case RADEON_HPD_2: + WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL, + S_007D10_DC_HOT_PLUG_DETECT2_EN(0)); + rdev->irq.hpd[1] = false; + break; + default: + break; + } + } +} + /* * GART. */ @@ -209,6 +310,10 @@ int rs600_irq_set(struct radeon_device *rdev) { uint32_t tmp = 0; uint32_t mode_int = 0; + u32 hpd1 = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL) & + ~S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1); + u32 hpd2 = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL) & + ~S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1); if (rdev->irq.sw_int) { tmp |= S_000040_SW_INT_EN(1); @@ -219,8 +324,16 @@ int rs600_irq_set(struct radeon_device *rdev) if (rdev->irq.crtc_vblank_int[1]) { mode_int |= S_006540_D2MODE_VBLANK_INT_MASK(1); } + if (rdev->irq.hpd[0]) { + hpd1 |= S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1); + } + if (rdev->irq.hpd[1]) { + hpd2 |= S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1); + } WREG32(R_000040_GEN_INT_CNTL, tmp); WREG32(R_006540_DxMODE_INT_MASK, mode_int); + WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1); + WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2); return 0; } @@ -228,6 +341,7 @@ static inline uint32_t rs600_irq_ack(struct radeon_device *rdev, u32 *r500_disp_ { uint32_t irqs = RREG32(R_000044_GEN_INT_STATUS); uint32_t irq_mask = ~C_000044_SW_INT; + u32 tmp; if (G_000044_DISPLAY_INT_STAT(irqs)) { *r500_disp_int = RREG32(R_007EDC_DISP_INTERRUPT_STATUS); @@ -239,6 +353,16 @@ static inline uint32_t rs600_irq_ack(struct radeon_device *rdev, u32 *r500_disp_ WREG32(R_006D34_D2MODE_VBLANK_STATUS, S_006D34_D2MODE_VBLANK_ACK(1)); } + if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(*r500_disp_int)) { + tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL); + tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_ACK(1); + WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp); + } + if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(*r500_disp_int)) { + tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL); + tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_ACK(1); + WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp); + } } else { *r500_disp_int = 0; } @@ -278,6 +402,12 @@ int rs600_irq_process(struct radeon_device *rdev) drm_handle_vblank(rdev->ddev, 0); if (G_007EDC_LB_D2_VBLANK_INTERRUPT(r500_disp_int)) drm_handle_vblank(rdev->ddev, 1); + if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(r500_disp_int)) { + DRM_INFO("HPD1\n"); + } + if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(r500_disp_int)) { + DRM_INFO("HPD2\n"); + } status = rs600_irq_ack(rdev, &r500_disp_int); } if (rdev->msi_enabled) { |