diff options
109 files changed, 20193 insertions, 2948 deletions
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst index 87aaffc22920..95ce77ff4342 100644 --- a/Documentation/gpu/i915.rst +++ b/Documentation/gpu/i915.rst @@ -49,6 +49,15 @@ Intel GVT-g Guest Support(vGPU) .. kernel-doc:: drivers/gpu/drm/i915/i915_vgpu.c :internal: +Intel GVT-g Host Support(vGPU device model) +------------------------------------------- + +.. kernel-doc:: drivers/gpu/drm/i915/intel_gvt.c + :doc: Intel GVT-g host support + +.. kernel-doc:: drivers/gpu/drm/i915/intel_gvt.c + :internal: + Display Hardware Handling ========================= diff --git a/MAINTAINERS b/MAINTAINERS index c44795306342..e60e0a188229 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4064,6 +4064,16 @@ F: include/drm/i915* F: include/uapi/drm/i915_drm.h F: Documentation/gpu/i915.rst +INTEL GVT-g DRIVERS (Intel GPU Virtualization) +M: Zhenyu Wang <zhenyuw@linux.intel.com> +M: Zhi Wang <zhi.a.wang@intel.com> +L: igvt-g-dev@lists.01.org +L: intel-gfx@lists.freedesktop.org +W: https://01.org/igvt-g +T: git https://github.com/01org/gvt-linux.git +S: Supported +F: drivers/gpu/drm/i915/gvt/ + DRM DRIVERS FOR ATMEL HLCDC M: Boris Brezillon <boris.brezillon@free-electrons.com> L: dri-devel@lists.freedesktop.org diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/drm_dp_dual_mode_helper.c index a7b2a751f6fe..488355bdafb9 100644 --- a/drivers/gpu/drm/drm_dp_dual_mode_helper.c +++ b/drivers/gpu/drm/drm_dp_dual_mode_helper.c @@ -148,6 +148,14 @@ static bool is_type2_adaptor(uint8_t adaptor_id) DP_DUAL_MODE_REV_TYPE2); } +static bool is_lspcon_adaptor(const char hdmi_id[DP_DUAL_MODE_HDMI_ID_LEN], + const uint8_t adaptor_id) +{ + return is_hdmi_adaptor(hdmi_id) && + (adaptor_id == (DP_DUAL_MODE_TYPE_TYPE2 | + DP_DUAL_MODE_TYPE_HAS_DPCD)); +} + /** * drm_dp_dual_mode_detect - Identify the DP dual mode adaptor * @adapter: I2C adapter for the DDC bus @@ -203,6 +211,8 @@ enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(struct i2c_adapter *adapter) ret = drm_dp_dual_mode_read(adapter, DP_DUAL_MODE_ADAPTOR_ID, &adaptor_id, sizeof(adaptor_id)); if (ret == 0) { + if (is_lspcon_adaptor(hdmi_id, adaptor_id)) + return DRM_DP_DUAL_MODE_LSPCON; if (is_type2_adaptor(adaptor_id)) { if (is_hdmi_adaptor(hdmi_id)) return DRM_DP_DUAL_MODE_TYPE2_HDMI; @@ -364,3 +374,96 @@ const char *drm_dp_get_dual_mode_type_name(enum drm_dp_dual_mode_type type) } } EXPORT_SYMBOL(drm_dp_get_dual_mode_type_name); + +/** + * drm_lspcon_get_mode: Get LSPCON's current mode of operation by + * reading offset (0x80, 0x41) + * @adapter: I2C-over-aux adapter + * @mode: current lspcon mode of operation output variable + * + * Returns: + * 0 on success, sets the current_mode value to appropriate mode + * -error on failure + */ +int drm_lspcon_get_mode(struct i2c_adapter *adapter, + enum drm_lspcon_mode *mode) +{ + u8 data; + int ret = 0; + + if (!mode) { + DRM_ERROR("NULL input\n"); + return -EINVAL; + } + + /* Read Status: i2c over aux */ + ret = drm_dp_dual_mode_read(adapter, DP_DUAL_MODE_LSPCON_CURRENT_MODE, + &data, sizeof(data)); + if (ret < 0) { + DRM_ERROR("LSPCON read(0x80, 0x41) failed\n"); + return -EFAULT; + } + + if (data & DP_DUAL_MODE_LSPCON_MODE_PCON) + *mode = DRM_LSPCON_MODE_PCON; + else + *mode = DRM_LSPCON_MODE_LS; + return 0; +} +EXPORT_SYMBOL(drm_lspcon_get_mode); + +/** + * drm_lspcon_set_mode: Change LSPCON's mode of operation by + * writing offset (0x80, 0x40) + * @adapter: I2C-over-aux adapter + * @mode: required mode of operation + * + * Returns: + * 0 on success, -error on failure/timeout + */ +int drm_lspcon_set_mode(struct i2c_adapter *adapter, + enum drm_lspcon_mode mode) +{ + u8 data = 0; + int ret; + int time_out = 200; + enum drm_lspcon_mode current_mode; + + if (mode == DRM_LSPCON_MODE_PCON) + data = DP_DUAL_MODE_LSPCON_MODE_PCON; + + /* Change mode */ + ret = drm_dp_dual_mode_write(adapter, DP_DUAL_MODE_LSPCON_MODE_CHANGE, + &data, sizeof(data)); + if (ret < 0) { + DRM_ERROR("LSPCON mode change failed\n"); + return ret; + } + + /* + * Confirm mode change by reading the status bit. + * Sometimes, it takes a while to change the mode, + * so wait and retry until time out or done. + */ + do { + ret = drm_lspcon_get_mode(adapter, ¤t_mode); + if (ret) { + DRM_ERROR("can't confirm LSPCON mode change\n"); + return ret; + } else { + if (current_mode != mode) { + msleep(10); + time_out -= 10; + } else { + DRM_DEBUG_KMS("LSPCON mode changed to %s\n", + mode == DRM_LSPCON_MODE_LS ? + "LS" : "PCON"); + return 0; + } + } + } while (time_out); + + DRM_ERROR("LSPCON mode change timed out\n"); + return -ETIMEDOUT; +} +EXPORT_SYMBOL(drm_lspcon_set_mode); diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig index 7769e469118f..1c1b19ccb92f 100644 --- a/drivers/gpu/drm/i915/Kconfig +++ b/drivers/gpu/drm/i915/Kconfig @@ -46,6 +46,31 @@ config DRM_I915_PRELIMINARY_HW_SUPPORT If in doubt, say "N". +config DRM_I915_CAPTURE_ERROR + bool "Enable capturing GPU state following a hang" + depends on DRM_I915 + default y + help + This option enables capturing the GPU state when a hang is detected. + This information is vital for triaging hangs and assists in debugging. + Please report any hang to + https://bugs.freedesktop.org/enter_bug.cgi?product=DRI + for triaging. + + If in doubt, say "Y". + +config DRM_I915_COMPRESS_ERROR + bool "Compress GPU error state" + depends on DRM_I915_CAPTURE_ERROR + select ZLIB_DEFLATE + default y + help + This option selects ZLIB_DEFLATE if it isn't already + selected and causes any error state captured upon a GPU hang + to be compressed using zlib. + + If in doubt, say "Y". + config DRM_I915_USERPTR bool "Always enable userptr support" depends on DRM_I915 diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index a998c2bce70a..612340097f4b 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -42,7 +42,6 @@ i915-y += i915_cmd_parser.o \ i915_gem_stolen.o \ i915_gem_tiling.o \ i915_gem_userptr.o \ - i915_gpu_error.o \ i915_trace_points.o \ intel_breadcrumbs.o \ intel_engine_cs.o \ @@ -102,11 +101,15 @@ i915-y += dvo_ch7017.o \ intel_dvo.o \ intel_hdmi.o \ intel_i2c.o \ + intel_lspcon.o \ intel_lvds.o \ intel_panel.o \ intel_sdvo.o \ intel_tv.o +# Post-mortem debug and GPU hang state capture +i915-$(CONFIG_DRM_I915_CAPTURE_ERROR) += i915_gpu_error.o + # virtual gpu code i915-y += i915_vgpu.o diff --git a/drivers/gpu/drm/i915/gvt/Makefile b/drivers/gpu/drm/i915/gvt/Makefile index d0f21a6ad60d..34ea4776af70 100644 --- a/drivers/gpu/drm/i915/gvt/Makefile +++ b/drivers/gpu/drm/i915/gvt/Makefile @@ -1,5 +1,7 @@ GVT_DIR := gvt -GVT_SOURCE := gvt.o +GVT_SOURCE := gvt.o aperture_gm.o handlers.o vgpu.o trace_points.o firmware.o \ + interrupt.o gtt.o cfg_space.o opregion.o mmio.o display.o edid.o \ + execlist.o scheduler.o sched_policy.o render.o cmd_parser.o |