diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/dce_v6_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | 3176 |
1 files changed, 3176 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c new file mode 100644 index 000000000000..b948d6cb1399 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c @@ -0,0 +1,3176 @@ +/* + * Copyright 2015 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ +#include "drmP.h" +#include "amdgpu.h" +#include "amdgpu_pm.h" +#include "amdgpu_i2c.h" +#include "atom.h" +#include "amdgpu_atombios.h" +#include "atombios_crtc.h" +#include "atombios_encoders.h" +#include "amdgpu_pll.h" +#include "amdgpu_connectors.h" +#include "si/si_reg.h" +#include "si/sid.h" + +static void dce_v6_0_set_display_funcs(struct amdgpu_device *adev); +static void dce_v6_0_set_irq_funcs(struct amdgpu_device *adev); + +static const u32 crtc_offsets[6] = +{ + SI_CRTC0_REGISTER_OFFSET, + SI_CRTC1_REGISTER_OFFSET, + SI_CRTC2_REGISTER_OFFSET, + SI_CRTC3_REGISTER_OFFSET, + SI_CRTC4_REGISTER_OFFSET, + SI_CRTC5_REGISTER_OFFSET +}; + +static const uint32_t dig_offsets[] = { + SI_CRTC0_REGISTER_OFFSET, + SI_CRTC1_REGISTER_OFFSET, + SI_CRTC2_REGISTER_OFFSET, + SI_CRTC3_REGISTER_OFFSET, + SI_CRTC4_REGISTER_OFFSET, + SI_CRTC5_REGISTER_OFFSET, + (0x13830 - 0x7030) >> 2, +}; + +static const struct { + uint32_t reg; + uint32_t vblank; + uint32_t vline; + uint32_t hpd; + +} interrupt_status_offsets[6] = { { + .reg = DISP_INTERRUPT_STATUS, + .vblank = DISP_INTERRUPT_STATUS__LB_D1_VBLANK_INTERRUPT_MASK, + .vline = DISP_INTERRUPT_STATUS__LB_D1_VLINE_INTERRUPT_MASK, + .hpd = DISP_INTERRUPT_STATUS__DC_HPD1_INTERRUPT_MASK +}, { + .reg = DISP_INTERRUPT_STATUS_CONTINUE, + .vblank = DISP_INTERRUPT_STATUS_CONTINUE__LB_D2_VBLANK_INTERRUPT_MASK, + .vline = DISP_INTERRUPT_STATUS_CONTINUE__LB_D2_VLINE_INTERRUPT_MASK, + .hpd = DISP_INTERRUPT_STATUS_CONTINUE__DC_HPD2_INTERRUPT_MASK +}, { + .reg = DISP_INTERRUPT_STATUS_CONTINUE2, + .vblank = DISP_INTERRUPT_STATUS_CONTINUE2__LB_D3_VBLANK_INTERRUPT_MASK, + .vline = DISP_INTERRUPT_STATUS_CONTINUE2__LB_D3_VLINE_INTERRUPT_MASK, + .hpd = DISP_INTERRUPT_STATUS_CONTINUE2__DC_HPD3_INTERRUPT_MASK +}, { + .reg = DISP_INTERRUPT_STATUS_CONTINUE3, + .vblank = DISP_INTERRUPT_STATUS_CONTINUE3__LB_D4_VBLANK_INTERRUPT_MASK, + .vline = DISP_INTERRUPT_STATUS_CONTINUE3__LB_D4_VLINE_INTERRUPT_MASK, + .hpd = DISP_INTERRUPT_STATUS_CONTINUE3__DC_HPD4_INTERRUPT_MASK +}, { + .reg = DISP_INTERRUPT_STATUS_CONTINUE4, + .vblank = DISP_INTERRUPT_STATUS_CONTINUE4__LB_D5_VBLANK_INTERRUPT_MASK, + .vline = DISP_INTERRUPT_STATUS_CONTINUE4__LB_D5_VLINE_INTERRUPT_MASK, + .hpd = DISP_INTERRUPT_STATUS_CONTINUE4__DC_HPD5_INTERRUPT_MASK +}, { + .reg = DISP_INTERRUPT_STATUS_CONTINUE5, + .vblank = DISP_INTERRUPT_STATUS_CONTINUE5__LB_D6_VBLANK_INTERRUPT_MASK, + .vline = DISP_INTERRUPT_STATUS_CONTINUE5__LB_D6_VLINE_INTERRUPT_MASK, + .hpd = DISP_INTERRUPT_STATUS_CONTINUE5__DC_HPD6_INTERRUPT_MASK +} }; + +static const uint32_t hpd_int_control_offsets[6] = { + DC_HPD1_INT_CONTROL, + DC_HPD2_INT_CONTROL, + DC_HPD3_INT_CONTROL, + DC_HPD4_INT_CONTROL, + DC_HPD5_INT_CONTROL, + DC_HPD6_INT_CONTROL, +}; + +static u32 dce_v6_0_audio_endpt_rreg(struct amdgpu_device *adev, + u32 block_offset, u32 reg) +{ + DRM_INFO("xxxx: dce_v6_0_audio_endpt_rreg ----no impl!!!!\n"); + return 0; +} + +static void dce_v6_0_audio_endpt_wreg(struct amdgpu_device *adev, + u32 block_offset, u32 reg, u32 v) +{ + DRM_INFO("xxxx: dce_v6_0_audio_endpt_wreg ----no impl!!!!\n"); +} + +static bool dce_v6_0_is_in_vblank(struct amdgpu_device *adev, int crtc) +{ + if (RREG32(EVERGREEN_CRTC_STATUS + crtc_offsets[crtc]) & EVERGREEN_CRTC_V_BLANK) + return true; + else + return false; +} + +static bool dce_v6_0_is_counter_moving(struct amdgpu_device *adev, int crtc) +{ + u32 pos1, pos2; + + pos1 = RREG32(EVERGREEN_CRTC_STATUS_POSITION + crtc_offsets[crtc]); + pos2 = RREG32(EVERGREEN_CRTC_STATUS_POSITION + crtc_offsets[crtc]); + + if (pos1 != pos2) + return true; + else + return false; +} + +/** + * dce_v6_0_wait_for_vblank - vblank wait asic callback. + * + * @crtc: crtc to wait for vblank on + * + * Wait for vblank on the requested crtc (evergreen+). + */ +static void dce_v6_0_vblank_wait(struct amdgpu_device *adev, int crtc) +{ + unsigned i = 100; + + if (crtc >= adev->mode_info.num_crtc) + return; + + if (!(RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[crtc]) & EVERGREEN_CRTC_MASTER_EN)) + return; + + /* depending on when we hit vblank, we may be close to active; if so, + * wait for another frame. + */ + while (dce_v6_0_is_in_vblank(adev, crtc)) { + if (i++ == 100) { + i = 0; + if (!dce_v6_0_is_counter_moving(adev, crtc)) + break; + } + } + + while (!dce_v6_0_is_in_vblank(adev, crtc)) { + if (i++ == 100) { + i = 0; + if (!dce_v6_0_is_counter_moving(adev, crtc)) + break; + } + } +} + +static u32 dce_v6_0_vblank_get_counter(struct amdgpu_device *adev, int crtc) +{ + if (crtc >= adev->mode_info.num_crtc) + return 0; + else + return RREG32(CRTC_STATUS_FRAME_COUNT + crtc_offsets[crtc]); +} + +static void dce_v6_0_pageflip_interrupt_init(struct amdgpu_device *adev) +{ + unsigned i; + + /* Enable pflip interrupts */ + for (i = 0; i < adev->mode_info.num_crtc; i++) + amdgpu_irq_get(adev, &adev->pageflip_irq, i); +} + +static void dce_v6_0_pageflip_interrupt_fini(struct amdgpu_device *adev) +{ + unsigned i; + + /* Disable pflip interrupts */ + for (i = 0; i < adev->mode_info.num_crtc; i++) + amdgpu_irq_put(adev, &adev->pageflip_irq, i); +} + +/** + * dce_v6_0_page_flip - pageflip callback. + * + * @adev: amdgpu_device pointer + * @crtc_id: crtc to cleanup pageflip on + * @crtc_base: new address of the crtc (GPU MC address) + * + * Does the actual pageflip (evergreen+). + * During vblank we take the crtc lock and wait for the update_pending + * bit to go high, when it does, we release the lock, and allow the + * double buffered update to take place. + * Returns the current update pending status. + */ +static void dce_v6_0_page_flip(struct amdgpu_device *adev, + int crtc_id, u64 crtc_base, bool async) +{ + struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[crtc_id]; + + /* flip at hsync for async, default is vsync */ + WREG32(EVERGREEN_GRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, async ? + EVERGREEN_GRPH_SURFACE_UPDATE_H_RETRACE_EN : 0); + /* update the scanout addresses */ + WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, + upper_32_bits(crtc_base)); + WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + amdgpu_crtc->crtc_offset, + (u32)crtc_base); + + /* post the write */ + RREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + amdgpu_crtc->crtc_offset); +} + +static int dce_v6_0_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc, + u32 *vbl, u32 *position) +{ + if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc)) + return -EINVAL; + *vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + crtc_offsets[crtc]); + *position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + crtc_offsets[crtc]); + + return 0; + +} + +/** + * dce_v6_0_hpd_sense - hpd sense callback. + * + * @adev: amdgpu_device pointer + * @hpd: hpd (hotplug detect) pin + * + * Checks if a digital monitor is connected (evergreen+). + * Returns true if connected, false if not connected. + */ +static bool dce_v6_0_hpd_sense(struct amdgpu_device *adev, + enum amdgpu_hpd_id hpd) +{ + bool connected = false; + + switch (hpd) { + case AMDGPU_HPD_1: + if (RREG32(DC_HPD1_INT_STATUS) & DC_HPDx_SENSE) + connected = true; + break; + case AMDGPU_HPD_2: + if (RREG32(DC_HPD2_INT_STATUS) & DC_HPDx_SENSE) + connected = true; + break; + case AMDGPU_HPD_3: + if (RREG32(DC_HPD3_INT_STATUS) & DC_HPDx_SENSE) + connected = true; + break; + case AMDGPU_HPD_4: + if (RREG32(DC_HPD4_INT_STATUS) & DC_HPDx_SENSE) + connected = true; + break; + case AMDGPU_HPD_5: + if (RREG32(DC_HPD5_INT_STATUS) & DC_HPDx_SENSE) + connected = true; + break; + case AMDGPU_HPD_6: + if (RREG32(DC_HPD6_INT_STATUS) & DC_HPDx_SENSE) + connected = true; + break; + default: + break; + } + + return connected; +} + +/** + * dce_v6_0_hpd_set_polarity - hpd set polarity callback. + * + * @adev: amdgpu_device pointer + * @hpd: hpd (hotplug detect) pin + * + * Set the polarity of the hpd pin (evergreen+). + */ +static void dce_v6_0_hpd_set_polarity(struct amdgpu_device *adev, + enum amdgpu_hpd_id hpd) +{ + u32 tmp; + bool connected = dce_v6_0_hpd_sense(adev, hpd); + + switch (hpd) { + case AMDGPU_HPD_1: + tmp = RREG32(DC_HPD1_INT_CONTROL); + if (connected) + tmp &= ~DC_HPDx_INT_POLARITY; + else + tmp |= DC_HPDx_INT_POLARITY; + WREG32(DC_HPD1_INT_CONTROL, tmp); + break; + case AMDGPU_HPD_2: + tmp = RREG32(DC_HPD2_INT_CONTROL); + if (connected) + tmp &= ~DC_HPDx_INT_POLARITY; + else + tmp |= DC_HPDx_INT_POLARITY; + WREG32(DC_HPD2_INT_CONTROL, tmp); + break; + case AMDGPU_HPD_3: + tmp = RREG32(DC_HPD3_INT_CONTROL); + if (connected) + tmp &= ~DC_HPDx_INT_POLARITY; + else + tmp |= DC_HPDx_INT_POLARITY; + WREG32(DC_HPD3_INT_CONTROL, tmp); + break; + case AMDGPU_HPD_4: + tmp = RREG32(DC_HPD4_INT_CONTROL); + if (connected) + tmp &= ~DC_HPDx_INT_POLARITY; + else + tmp |= DC_HPDx_INT_POLARITY; + WREG32(DC_HPD4_INT_CONTROL, tmp); + break; + case AMDGPU_HPD_5: + tmp = RREG32(DC_HPD5_INT_CONTROL); + if (connected) + tmp &= ~DC_HPDx_INT_POLARITY; + else + tmp |= DC_HPDx_INT_POLARITY; + WREG32(DC_HPD5_INT_CONTROL, tmp); + break; + case AMDGPU_HPD_6: + tmp = RREG32(DC_HPD6_INT_CONTROL); + if (connected) + tmp &= ~DC_HPDx_INT_POLARITY; + else + tmp |= DC_HPDx_INT_POLARITY; + WREG32(DC_HPD6_INT_CONTROL, tmp); + break; + default: + break; + } +} + +/** + * dce_v6_0_hpd_init - hpd setup callback. + * + * @adev: amdgpu_device pointer + * + * Setup the hpd pins used by the card (evergreen+). + * Enable the pin, set the polarity, and enable the hpd interrupts. + */ +static void dce_v6_0_hpd_init(struct amdgpu_device *adev) +{ + struct drm_device *dev = adev->ddev; + struct drm_connector *connector; + u32 tmp = DC_HPDx_CONNECTION_TIMER(0x9c4) | + DC_HPDx_RX_INT_TIMER(0xfa) | DC_HPDx_EN; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); + + switch (amdgpu_connector->hpd.hpd) { + case AMDGPU_HPD_1: + WREG32(DC_HPD1_CONTROL, tmp); + break; + case AMDGPU_HPD_2: + WREG32(DC_HPD2_CONTROL, tmp); + break; + case AMDGPU_HPD_3: + WREG32(DC_HPD3_CONTROL, tmp); + break; + case AMDGPU_HPD_4: + WREG32(DC_HPD4_CONTROL, tmp); + break; + case AMDGPU_HPD_5: + WREG32(DC_HPD5_CONTROL, tmp); + break; + case AMDGPU_HPD_6: + WREG32(DC_HPD6_CONTROL, tmp); + break; + default: + break; + } + + if (connector->connector_type == DRM_MODE_CONNECTOR_eDP || + connector->connector_type == DRM_MODE_CONNECTOR_LVDS) { + /* don't try to enable hpd on eDP or LVDS avoid breaking the + * aux dp channel on imac and help (but not completely fix) + * https://bugzilla.redhat.com/show_bug.cgi?id=726143 + * also avoid interrupt storms during dpms. + */ + u32 dc_hpd_int_cntl_reg, dc_hpd_int_cntl; + + switch (amdgpu_connector->hpd.hpd) { + case AMDGPU_HPD_1: + dc_hpd_int_cntl_reg = DC_HPD1_INT_CONTROL; + break; + case AMDGPU_HPD_2: + dc_hpd_int_cntl_reg = DC_HPD2_INT_CONTROL; + break; + case AMDGPU_HPD_3: + dc_hpd_int_cntl_reg = DC_HPD3_INT_CONTROL; + break; + case AMDGPU_HPD_4: + dc_hpd_int_cntl_reg = DC_HPD4_INT_CONTROL; + break; + case AMDGPU_HPD_5: + dc_hpd_int_cntl_reg = DC_HPD5_INT_CONTROL; + break; + case AMDGPU_HPD_6: + dc_hpd_int_cntl_reg = DC_HPD6_INT_CONTROL; + break; + default: + continue; + } + + dc_hpd_int_cntl = RREG32(dc_hpd_int_cntl_reg); + dc_hpd_int_cntl &= ~DC_HPDx_INT_EN; + WREG32(dc_hpd_int_cntl_reg, dc_hpd_int_cntl); + continue; + } + + dce_v6_0_hpd_set_polarity(adev, amdgpu_connector->hpd.hpd); + amdgpu_irq_get(adev, &adev->hpd_irq, amdgpu_connector->hpd.hpd); + } + +} + +/** + * dce_v6_0_hpd_fini - hpd tear down callback. + * + * @adev: amdgpu_device pointer + * + * Tear down the hpd pins used by the card (evergreen+). + * Disable the hpd interrupts. + */ +static void dce_v6_0_hpd_fini(struct amdgpu_device *adev) +{ + struct drm_device *dev = adev->ddev; + struct drm_connector *connector; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); + + switch (amdgpu_connector->hpd.hpd) { + case AMDGPU_HPD_1: + WREG32(DC_HPD1_CONTROL, 0); + break; + case AMDGPU_HPD_2: + WREG32(DC_HPD2_CONTROL, 0); + break; + case AMDGPU_HPD_3: + WREG32(DC_HPD3_CONTROL, 0); + break; + case AMDGPU_HPD_4: + WREG32(DC_HPD4_CONTROL, 0); + break; + case AMDGPU_HPD_5: + WREG32(DC_HPD5_CONTROL, 0); + break; + case AMDGPU_HPD_6: + WREG32(DC_HPD6_CONTROL, 0); + break; + default: + break; + } + amdgpu_irq_put(adev, &adev->hpd_irq, amdgpu_connector->hpd.hpd); + } +} + +static u32 dce_v6_0_hpd_get_gpio_reg(struct amdgpu_device *adev) +{ + return SI_DC_GPIO_HPD_A; +} + +static bool dce_v6_0_is_display_hung(struct amdgpu_device *adev) +{ + DRM_INFO("xxxx: dce_v6_0_is_display_hung ----no imp!!!!!\n"); + + return true; +} + +static u32 evergreen_get_vblank_counter(struct amdgpu_device* adev, int crtc) +{ + if (crtc >= adev->mode_info.num_crtc) + return 0; + else + return RREG32(CRTC_STATUS_FRAME_COUNT + crtc_offsets[crtc]); +} + +static void dce_v6_0_stop_mc_access(struct amdgpu_device *adev, + struct amdgpu_mode_mc_save *save) +{ + u32 crtc_enabled, tmp, frame_count; + int i, j; + + save->vga_render_control = RREG32(VGA_RENDER_CONTROL); + save->vga_hdp_control = RREG32(VGA_HDP_CONTROL); + + /* disable VGA render */ + WREG32(VGA_RENDER_CONTROL, 0); + + /* blank the display controllers */ + for (i = 0; i < adev->mode_info.num_crtc; i++) { + crtc_enabled = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]) & EVERGREEN_CRTC_MASTER_EN; + if (crtc_enabled) { + save->crtc_enabled[i] = true; + tmp = RREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i]); + + if (!(tmp & EVERGREEN_CRTC_BLANK_DATA_EN)) { + dce_v6_0_vblank_wait(adev, i); + WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1); + tmp |= EVERGREEN_CRTC_BLANK_DATA_EN; + WREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i], tmp); + WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 0); + } + /* wait for the next frame */ + frame_count = evergreen_get_vblank_counter(adev, i); + for (j = 0; j < adev->usec_timeout; j++) { + if (evergreen_get_vblank_counter(adev, i) != frame_count) + break; + udelay(1); + } + + /* XXX this is a hack to avoid strange behavior with EFI on certain systems */ + WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1); + tmp = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]); + tmp &= ~EVERGREEN_CRTC_MASTER_EN; + WREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i], tmp); + WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 0); + save->crtc_enabled[i] = false; + /* ***** */ + } else { + save->crtc_enabled[i] = false; + } + } +} + +static void dce_v6_0_resume_mc_access(struct amdgpu_device *adev, + struct amdgpu_mode_mc_save *save) +{ + u32 tmp; + int i, j; + + /* update crtc base addresses */ + for (i = 0; i < adev->mode_info.num_crtc; i++) { + WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + crtc_offsets[i], + upper_32_bits(adev->mc.vram_start)); + WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + crtc_offsets[i], + upper_32_bits(adev->mc.vram_start)); + WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + crtc_offsets[i], + (u32)adev->mc.vram_start); + WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + crtc_offsets[i], + (u32)adev->mc.vram_start); + } + + WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS_HIGH, upper_32_bits(adev->mc.vram_start)); + WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS, (u32)adev->mc.vram_start); + + /* unlock regs and wait for update */ + for (i = 0; i < adev->mode_info.num_crtc; i++) { + if (save->crtc_enabled[i]) { + tmp = RREG32(EVERGREEN_MASTER_UPDATE_MODE + crtc_offsets[i]); + if ((tmp & 0x7) != 3) { + tmp &= ~0x7; + tmp |= 0x3; + WREG32(EVERGREEN_MASTER_UPDATE_MODE + crtc_offsets[i], tmp); + } + tmp = RREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i]); + if (tmp & EVERGREEN_GRPH_UPDATE_LOCK) { + tmp &= ~EVERGREEN_GRPH_UPDATE_LOCK; + WREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i], tmp); + } + tmp = RREG32(EVERGREEN_MASTER_UPDATE_LOCK + crtc_offsets[i]); + if (tmp & 1) { + tmp &= ~1; + WREG32(EVERGREEN_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp); + } + for (j = 0; j < adev->usec_timeout; j++) { + tmp = RREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i]); + if ((tmp & EVERGREEN_GRPH_SURFACE_UPDATE_PENDING) == 0) + break; + udelay(1); + } + } + } + + /* Unlock vga access */ + WREG32(VGA_HDP_CONTROL, save->vga_hdp_control); + mdelay(1); + WREG32(VGA_RENDER_CONTROL, save->vga_render_control); + +} + +static void dce_v6_0_set_vga_render_state(struct amdgpu_device *adev, + bool render) +{ + if (!render) + WREG32(R_000300_VGA_RENDER_CONTROL, + RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL); + +} + +static void dce_v6_0_program_fmt(struct drm_encoder *encoder) +{ + + struct drm_device *dev = encoder->dev; + struct amdgpu_device *adev = dev->dev_private; + struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); + struct drm_connector *connector = amdgpu_get_connector_for_encoder(encoder); + struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(encoder->crtc); + int bpc = 0; + u32 tmp = 0; + enum amdgpu_connector_dither dither = AMDGPU_FMT_DITHER_DISABLE; + + if (connector) { + struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); + bpc = amdgpu_connector_get_monitor_bpc(connector); + dither = amdgpu_connector->dither; + } + + /* LVDS FMT is set up by atom */ + if (amdgpu_encoder->devices & ATOM_DEVICE_LCD_SUPPORT) + return; + + if (bpc == 0) + return; + + + switch (bpc) { + case 6: + if (dither == AMDGPU_FMT_DITHER_ENABLE) + /* XXX sort out optimal dither settings */ + tmp |= (FMT_FRAME_RANDOM_ENABLE | FMT_HIGHPASS_RANDOM_ENABLE | + FMT_SPATIAL_DITHER_EN); + else + tmp |= FMT_TRUNCATE_EN; + break; + case 8: + if (dither == AMDGPU_FMT_DITHER_ENABLE) + /* XXX sort out optimal dither settings */ + tmp |= (FMT_FRAME_RANDOM_ENABLE | FMT_HIGHPASS_RANDOM_ENABLE | + FMT_RGB_RANDOM_ENABLE | + FMT_SPATIAL_DITHER_EN | FMT_SPATIAL_DITHER_DEPTH); + else + tmp |= (FMT_TRUNCATE_EN | FMT_TRUNCATE_DEPTH); + break; + case 10: + default: + /* not needed */ + break; + } + + WREG32(FMT_BIT_DEPTH_CONTROL + amdgpu_crtc->crtc_offset, tmp); +} + +/** + * cik_get_number_of_dram_channels - get the number of dram channels + * + * @adev: amdgpu_device pointer + * + * Look up the number of video ram channels (CIK). + * Used for display watermark bandwidth calculations + * Returns the number of dram channels + */ +static u32 si_get_number_of_dram_channels(struct amdgpu_device *adev) +{ + u32 tmp = RREG32(MC_SHARED_CHMAP); + + switch ((tmp & MC_SHARED_CHMAP__NOOFCHAN_MASK) >> MC_SHARED_CHMAP__NOOFCHAN__SHIFT) { + case 0: + default: + return 1; + case 1: + return 2; + case 2: + return 4; + case 3: + return 8; + case 4: + return 3; + case 5: + return 6; + case 6: + return 10; + case 7: + return 12; + case 8: + return 16; + } +} + +struct dce6_wm_params { + u32 dram_channels; /* number of dram channels */ + u32 yclk; /* bandwidth per dram data pin in kHz */ + u32 sclk; /* engine clock in kHz */ + u32 disp_clk; /* display clock in kHz */ + u32 src_width; /* viewport width */ + u32 active_time; /* active display time in ns */ + u32 blank_time; /* blank time in ns */ + bool interlaced; /* mode is interlaced */ + fixed20_12 vsc; /* vertical scale ratio */ + u32 num_heads; /* number of active crtcs */ + u32 bytes_per_pixel; /* bytes per pixel display + overlay */ + u32 lb_size; /* line buffer allocated to pipe */ + u32 vtaps; /* vertical scaler taps */ +}; + +/** + * dce_v6_0_dram_bandwidth - get the dram bandwidth + * + * @wm: watermark calculation data + * + * Calculate the raw dram bandwidth (CIK). + * Used for display watermark bandwidth calculations + * Returns the dram bandwidth in MBytes/s + */ +static u32 dce_v6_0_dram_bandwidth(struct dce6_wm_params *wm) +{ + /* Calculate raw DRAM Bandwidth */ + fixed20_12 dram_efficiency; /* 0.7 */ + fixed20_12 yclk, dram_channels, bandwidth; + fixed20_12 a; + + a.full = dfixed_const(1000); + yclk.full = dfixed_const(wm->yclk); + yclk.full = dfixed_div(yclk, a); + dram_channels.full = dfixed_const(wm->dram_channels * 4); + a.full = dfixed_const(10); + dram_efficiency.full = dfixed_const(7); + dram_efficiency.full = dfixed_div(dram_efficiency, a); + bandwidth.full = dfixed_mul(dram_channels, yclk); + bandwidth.full = dfixed_mul(bandwidth, dram_efficiency); + + return dfixed_trunc(bandwidth); +} + +/** + * dce_v6_0_dram_bandwidth_for_display - get the dram bandwidth for display + * + * @wm: watermark calculation data + * + * Calculate the dram bandwidth used for display (CIK). + * Used for display watermark bandwidth calculations + * Returns the dram bandwidth for display in MBytes/s + */ +static u32 dce_v6_0_dram_bandwidth_for_display(struct dce6_wm_params *wm) +{ + /* Calculate DRAM Bandwidth and the part allocated to display. */ + fixed20_12 disp_dram_allocation; /* 0.3 to 0.7 */ + fixed20_12 yclk, dram_channels, bandwidth; + fixed20_12 a; + + a.full = dfixed_const(1000); + yclk.full = dfixed_const(wm->yclk); + yclk.full = dfixed_div(yclk, a); + dram_channels.full = dfixed_const(wm->dram_channels * 4); + a.full = dfixed_const(10); + disp_dram_allocation.full = dfixed_const(3); /* XXX worse case value 0.3 */ + disp_dram_allocation.full = dfixed_div(disp_dram_allocation, a); + bandwidth.full = dfixed_mul(dram_channels, yclk); + bandwidth.full = dfixed_mul(bandwidth, disp_dram_allocation); + + return dfixed_trunc(bandwidth); +} + +/** + * dce_v6_0_data_return_bandwidth - get the data return bandwidth + * + * @wm: watermark calculation data + * + * Calculate the data return bandwidth used for display (CIK). + * Used for display watermark bandwidth calculations + * Returns the data return bandwidth in MBytes/s + */ +static u32 dce_v6_0_data_return_bandwidth(struct dce6_wm_params *wm) +{ + /* Calculate the display Data return Bandwidth */ + fixed20_12 return_efficiency; /* 0.8 */ + fixed20_12 sclk, bandwidth; + fixed20_12 a; + + a.full = dfixed_const(1000); + sclk.full = dfixed_const(wm->sclk); + sclk.full = dfixed_div(sclk, a); + a.full = dfixed_const(10); + return_efficiency.full = dfixed_const(8); + return_efficiency.full = dfixed_div(return_efficiency, a); + a.full = dfixed_const(32); + bandwidth.full = dfixed_mul(a, sclk); + bandwidth.full = dfixed_mul(bandwidth, return_efficiency); + + return dfixed_trunc(bandwidth); +} + +/** + * dce_v6_0_dmif_request_bandwidth - get the dmif bandwidth + * + * @wm: watermark calculation data + * + * Calculate the dmif bandwidth used for display (CIK). + * Used for display watermark bandwidth calculations + * Returns the dmif bandwidth in MBytes/s + */ +static u32 dce_v6_0_dmif_request_bandwidth(struct dce6_wm_params *wm) +{ + /* Calculate the DMIF Request Bandwidth */ + fixed20_12 disp_clk_request_efficiency; /* 0.8 */ + fixed20_12 disp_clk, bandwidth; + fixed20_12 a, b; + + a.full = dfixed_const(1000); + disp_clk.full = dfixed_const(wm->disp_clk); + disp_clk.full = dfixed_div(disp_clk, a); + a.full = dfixed_const(32); + b.full = dfixed_mul(a, disp_clk); + + a.full = dfixed_const(10); + disp_clk_request_efficiency.full = dfixed_const(8); + disp_clk_request_efficiency.full = dfixed_div(disp_clk_request_efficiency, a); + + bandwidth.full = dfixed_mul(b, disp_clk_request_efficiency); + + return dfixed_trunc(bandwidth); +} + +/** + * dce_v6_0_available_bandwidth - get the min available bandwidth + * + * @wm: watermark calculation data + * + * Calculate the min available bandwidth used for display (CIK). + * Used for display watermark bandwidth calculations + * Returns the min available bandwidth in MBytes/s + */ +static u32 dce_v6_0_available_bandwidth(struct dce6_wm_params *wm) +{ + /* Calculate the Available bandwidth. Display can use this temporarily but not in average. */ + u32 dram_bandwidth = dce_v6_0_dram_bandwidth(wm); + u32 data_return_bandwidth = dce_v6_0_data_return_bandwidth(wm); + u32 dmif_req_bandwidth = dce_v6_0_dmif_request_bandwidth(wm); + + return min(dram_bandwidth, min(data_return_bandwidth, dmif_req_bandwidth)); +} + +/** + * dce_v6_0_average_bandwidth - get the average available bandwidth + * + * @wm: watermark calculation data + * + * Calculate the average available bandwidth used for display (CIK). + * Used for display watermark bandwidth calculations + * Returns the average available bandwidth in MBytes/s + */ +static u32 dce_v6_0_average_bandwidth(struct dce6_wm_params *wm) +{ + /* Calculate the display mode Average Bandwidth + * DisplayMode should contain the source and destination dimensions, + * timing, etc. + */ + fixed20_12 bpp; + fixed20_12 line_time; + fixed20_12 src_width; + fixed20_12 bandwidth; + fixed20_12 a; + + a.full = dfixed_const(1000); + line_time.full = dfixed_const(wm->active_time + wm->blank_time); + line_time.full = dfixed_div(line_time, a); + bpp.full = dfixed_const(wm->bytes_per_pixel); + src_width.full = dfixed_const(wm->src_width); + bandwidth.full = dfixed_mul(src_width, bpp); + bandwidth.full = dfixed_mul(bandwidth, wm->vsc); + bandwidth.full = dfixed_div(bandwidth, line_time); + + return dfixed_trunc(bandwidth); +} + +/** + * dce_v6_0_latency_watermark - get the latency watermark + * + * @wm: watermark calculation data + * + * Calculate the latency watermark (CIK). + * Used for display watermark bandwidth calculations + * Returns the latency watermark in ns + */ +static u32 dce_v6_0_latency_watermark(struct dce6_wm_params *wm) +{ + /* First calculate the latency in ns */ + u32 mc_latency = 2000; /* 2000 ns. */ + u32 available_bandwidth = dce_v6_0_available_bandwidth(wm); + u32 worst_chunk_return_time = (512 * 8 * 1000) / available_bandwidth; + u32 cursor_line_pair_return_time = (128 * 4 * 1000) / available_bandwidth; + u32 dc_latency = 40000000 / wm->disp_clk; /* dc pipe latency */ + u32 other_heads_data_return_time = ((wm->num_heads + 1) * worst_chunk_return_time) + + (wm->num_heads * cursor_line_pair_return_time); + u32 latency = mc_latency + other_heads_data_return_time + dc_latency; + u32 max_src_lines_per_dst_line, lb_fill_bw, line_fill_time; + u32 tmp, dmif_size = 12288; + fixed20_12 a, b, c; + + if (wm->num_heads == 0) + return 0; + + a.full = dfixed_const(2); + b.full = dfixed_const(1); + if ((wm->vsc.full > a.full) || + ((wm->vsc.full > b.full) && (wm->vtaps >= 3)) || + (wm->vtaps >= 5) || + ((wm->vsc.full >= a.full) && wm->interlaced)) + max_src_lines_per_dst_line = 4; + else + max_src_lines_per_dst_line = 2; + + a.full = dfixed_const(available_bandwidth); + b.full = dfixed_const(wm->num_heads); + a.full = dfixed_div(a, b); + + b.full = dfixed_const(mc_latency + 512); + c.full = dfixed_const(wm->disp_clk); + b.full = dfixed_div(b, c); + + c.full = dfixed_const(dmif_size); + b.full = dfixed_div(c, b); + + tmp = min(dfixed_trunc(a), dfixed_trunc(b)); + + b.full = dfixed_const(1000); + c.full = dfixed_const(wm->disp_clk); + b.full = dfixed_div(c, b); + c.full = dfixed_const(wm->bytes_per_pixel); + b.full = dfixed_mul(b, c); + + lb_fill_bw = min(tmp, dfixed_trunc(b)); + + a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel); + b.full = dfixed_const(1000); + c.full = dfixed_const(lb_fill_bw); + b.full = dfixed_div(c, b); + a.full = dfixed_div(a, b); + line_fill_time = dfixed_trunc(a); + + if (line_fill_time < wm->active_time) + return latency; + else + return latency + (line_fill_time - wm->active_time); + +} + +/** + * dce_v6_0_average_bandwidth_vs_dram_bandwidth_for_display - check + * average and available dram bandwidth + * + * @wm: watermark calculation data + * + * Check if the display average bandwidth fits in the display + * dram bandwidth (CIK). + * Used for display watermark bandwidth calculations + * Returns true if the display fits, false if not. + */ +static bool dce_v6_0_average_bandwidth_vs_dram_bandwidth_for_display(struct dce6_wm_params *wm) +{ + if (dce_v6_0_average_bandwidth(wm) <= + (dce_v6_0_dram_bandwidth_for_display(wm) / wm->num_heads)) + return true; + else + return false; +} + +/** + * dce_v6_0_average_bandwidth_vs_available_bandwidth - check + * average and available bandwidth + * + * @wm: watermark calculation data + * + * Check if the display average bandwidth fits in the display + * available bandwidth (CIK). + * Used for display watermark bandwidth calculations + * Returns true if the display fits, false if not. + */ +static bool dce_v6_0_average_bandwidth_vs_available_bandwidth(struct dce6_wm_params *wm) +{ + if (dce_v6_0_average_bandwidth(wm) <= + (dce_v6_0_available_bandwidth(wm) / wm->num_heads)) + return true; + else + return false; +} + +/** + * dce_v6_0_check_latency_hiding - check latency hiding + * + * @wm: watermark calculation data + * + * Check latency hiding (CIK). + * Used for display watermark bandwidth calculations + * Returns true if the display fits, false if not. + */ +static bool dce_v6_0_check_latency_hiding(struct dce6_wm_params *wm) +{ + u32 lb_partitions = wm->lb_size / wm->src_width; + u32 line_time = wm->active_time + wm->blank_time; + u32 latency_tolerant_lines; + u32 latency_hiding; + fixed20_12 a; + + a.full = dfixed_const(1); + if (wm->vsc.full > a.full) + latency_tolerant_lines = 1; + else { + if (lb_partitions <= (wm->vtaps + 1)) + latency_tolerant_lines = 1; + else + latency_tolerant_lines = 2; + } + + latency_hiding = (latency_tolerant_lines * line_time + wm->blank_time); + + if (dce_v6_0_latency_watermark(wm) <= latency_hiding) + return true; + else + return false; +} + +/** + * dce_v6_0_program_watermarks - program display watermarks + * + * @adev: amdgpu_device pointer + * @amdgpu_crtc: the selected display controller + * @lb_size: line buffer size + * @num_heads: number of display controllers in use + * + * Calculate and program the display watermarks for the + * selected display controller (CIK). + */ +static void dce_v6_0_program_watermarks(struct amdgpu_device *adev, + struct amdgpu_crtc *amdgpu_crtc, + u32 lb_size, u32 num_heads) +{ + struct drm_display_mode *mode = &amdgpu_crtc->base.mode; + struct dce6_wm_params wm_low, wm_high; + u32 dram_channels; + u32 pixel_period; + u32 line_time = 0; + u32 latency_watermark_a = 0, latency_watermark_b = 0; + u32 priority_a_mark = 0, priority_b_mark = 0; + u32 priority_a_cnt = PRIORITY_OFF; + u32 priority_b_cnt = PRIORITY_OFF; + u32 tmp, arb_control3; + fixed20_12 a, b, c; + + if (amdgpu_crtc->base.enabled && num_heads && mode) { + pixel_period = 1000000 / (u32)mode->clock; + line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535); + priority_a_cnt = 0; + priority_b_cnt = 0; + + dram_channels = si_get_number_of_dram_channels(adev); + + /* watermark for high clocks */ + if (adev->pm.dpm_enabled) { + wm_high.yclk = + amdgpu_dpm_get_mclk(adev, false) * 10; + wm_high.sclk = + amdgpu_dpm_get_sclk(adev, false) * 10; + } else { + wm_high.yclk = adev->pm.current_mclk * 10; + wm_high.sclk = adev->pm.current_sclk * 10; + } + + wm_high.disp_clk = mode->clock; + wm_high.src_width = mode->crtc_hdisplay; + wm_high.active_time = mode->crtc_hdisplay * pixel_period; + wm_high.blank_time = line_time - wm_high.active_time; + wm_high.interlaced = false; + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + wm_high.interlaced = true; + wm_high.vsc = amdgpu_crtc->vsc; + wm_high.vtaps = 1; + if (amdgpu_crtc->rmx_type != RMX_OFF) + wm_high.vtaps = 2; + wm_high.bytes_per_pixel = 4; /* XXX: get this from fb config */ + wm_high.lb_size = lb_size; + wm_high.dram_channels = dram_channels; + wm_high.num_heads = num_heads; + + if (adev->pm.dpm_enabled) { + /* watermark for low clocks */ + wm_low.yclk = + amdgpu_dpm_get_mclk(adev, true) * 10; + wm_low.sclk = + amdgpu_dpm_get_sclk(adev, true) * 10; |