cregit-Linux how code gets into the kernel

Release 4.17 drivers/gpu/drm/i915/i915_pci.c

Directory: drivers/gpu/drm/i915
/*
 * Copyright © 2016 Intel Corporation
 *
 * 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 (including the next
 * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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 <linux/console.h>
#include <linux/vgaarb.h>
#include <linux/vga_switcheroo.h>

#include "i915_drv.h"
#include "i915_selftest.h"


#define PLATFORM(x) .platform = (x), .platform_mask = BIT(x)

#define GEN(x) .gen = (x), .gen_mask = BIT((x) - 1)


#define GEN_DEFAULT_PIPEOFFSETS \
	.pipe_offsets = { PIPE_A_OFFSET, PIPE_B_OFFSET, \
                          PIPE_C_OFFSET, PIPE_EDP_OFFSET }, \
        .trans_offsets = { TRANSCODER_A_OFFSET, TRANSCODER_B_OFFSET, \
                           TRANSCODER_C_OFFSET, TRANSCODER_EDP_OFFSET }, \
        .palette_offsets = { PALETTE_A_OFFSET, PALETTE_B_OFFSET }


#define GEN_CHV_PIPEOFFSETS \
	.pipe_offsets = { PIPE_A_OFFSET, PIPE_B_OFFSET, \
                          CHV_PIPE_C_OFFSET }, \
        .trans_offsets = { TRANSCODER_A_OFFSET, TRANSCODER_B_OFFSET, \
                           CHV_TRANSCODER_C_OFFSET, }, \
        .palette_offsets = { PALETTE_A_OFFSET, PALETTE_B_OFFSET, \
                             CHV_PALETTE_C_OFFSET }


#define CURSOR_OFFSETS \
	.cursor_offsets = { CURSOR_A_OFFSET, CURSOR_B_OFFSET, CHV_CURSOR_C_OFFSET }


#define IVB_CURSOR_OFFSETS \
	.cursor_offsets = { CURSOR_A_OFFSET, IVB_CURSOR_B_OFFSET, IVB_CURSOR_C_OFFSET }


#define BDW_COLORS \
	.color = { .degamma_lut_size = 512, .gamma_lut_size = 512 }

#define CHV_COLORS \
	.color = { .degamma_lut_size = 65, .gamma_lut_size = 257 }

#define GLK_COLORS \
	.color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 }

/* Keep in gen based order, and chronological order within a gen */


#define GEN_DEFAULT_PAGE_SIZES \
	.page_sizes = I915_GTT_PAGE_SIZE_4K


#define GEN2_FEATURES \
	GEN(2), \
        .num_pipes = 1, \
        .has_overlay = 1, .overlay_needs_physical = 1, \
        .has_gmch_display = 1, \
        .hws_needs_physical = 1, \
        .unfenced_needs_alignment = 1, \
        .ring_mask = RENDER_RING, \
        .has_snoop = true, \
        GEN_DEFAULT_PIPEOFFSETS, \
        GEN_DEFAULT_PAGE_SIZES, \
        CURSOR_OFFSETS


static const struct intel_device_info intel_i830_info = {
	GEN2_FEATURES,
	PLATFORM(INTEL_I830),
	.is_mobile = 1, .cursor_needs_physical = 1,
	.num_pipes = 2, /* legal, last one wins */
};


static const struct intel_device_info intel_i845g_info = {
	GEN2_FEATURES,
	PLATFORM(INTEL_I845G),
};


static const struct intel_device_info intel_i85x_info = {
	GEN2_FEATURES,
	PLATFORM(INTEL_I85X),
	.is_mobile = 1,
	.num_pipes = 2, /* legal, last one wins */
	.cursor_needs_physical = 1,
	.has_fbc = 1,
};


static const struct intel_device_info intel_i865g_info = {
	GEN2_FEATURES,
	PLATFORM(INTEL_I865G),
};


#define GEN3_FEATURES \
	GEN(3), \
        .num_pipes = 2, \
        .has_gmch_display = 1, \
        .ring_mask = RENDER_RING, \
        .has_snoop = true, \
        GEN_DEFAULT_PIPEOFFSETS, \
        GEN_DEFAULT_PAGE_SIZES, \
        CURSOR_OFFSETS


static const struct intel_device_info intel_i915g_info = {
	GEN3_FEATURES,
	PLATFORM(INTEL_I915G),
	.cursor_needs_physical = 1,
	.has_overlay = 1, .overlay_needs_physical = 1,
	.hws_needs_physical = 1,
	.unfenced_needs_alignment = 1,
};


static const struct intel_device_info intel_i915gm_info = {
	GEN3_FEATURES,
	PLATFORM(INTEL_I915GM),
	.is_mobile = 1,
	.cursor_needs_physical = 1,
	.has_overlay = 1, .overlay_needs_physical = 1,
	.supports_tv = 1,
	.has_fbc = 1,
	.hws_needs_physical = 1,
	.unfenced_needs_alignment = 1,
};


static const struct intel_device_info intel_i945g_info = {
	GEN3_FEATURES,
	PLATFORM(INTEL_I945G),
	.has_hotplug = 1, .cursor_needs_physical = 1,
	.has_overlay = 1, .overlay_needs_physical = 1,
	.hws_needs_physical = 1,
	.unfenced_needs_alignment = 1,
};


static const struct intel_device_info intel_i945gm_info = {
	GEN3_FEATURES,
	PLATFORM(INTEL_I945GM),
	.is_mobile = 1,
	.has_hotplug = 1, .cursor_needs_physical = 1,
	.has_overlay = 1, .overlay_needs_physical = 1,
	.supports_tv = 1,
	.has_fbc = 1,
	.hws_needs_physical = 1,
	.unfenced_needs_alignment = 1,
};


static const struct intel_device_info intel_g33_info = {
	GEN3_FEATURES,
	PLATFORM(INTEL_G33),
	.has_hotplug = 1,
	.has_overlay = 1,
};


static const struct intel_device_info intel_pineview_info = {
	GEN3_FEATURES,
	PLATFORM(INTEL_PINEVIEW),
	.is_mobile = 1,
	.has_hotplug = 1,
	.has_overlay = 1,
};


#define GEN4_FEATURES \
	GEN(4), \
        .num_pipes = 2, \
        .has_hotplug = 1, \
        .has_gmch_display = 1, \
        .ring_mask = RENDER_RING, \
        .has_snoop = true, \
        GEN_DEFAULT_PIPEOFFSETS, \
        GEN_DEFAULT_PAGE_SIZES, \
        CURSOR_OFFSETS


static const struct intel_device_info intel_i965g_info = {
	GEN4_FEATURES,
	PLATFORM(INTEL_I965G),
	.has_overlay = 1,
	.hws_needs_physical = 1,
	.has_snoop = false,
};


static const struct intel_device_info intel_i965gm_info = {
	GEN4_FEATURES,
	PLATFORM(INTEL_I965GM),
	.is_mobile = 1, .has_fbc = 1,
	.has_overlay = 1,
	.supports_tv = 1,
	.hws_needs_physical = 1,
	.has_snoop = false,
};


static const struct intel_device_info intel_g45_info = {
	GEN4_FEATURES,
	PLATFORM(INTEL_G45),
	.ring_mask = RENDER_RING | BSD_RING,
};


static const struct intel_device_info intel_gm45_info = {
	GEN4_FEATURES,
	PLATFORM(INTEL_GM45),
	.is_mobile = 1, .has_fbc = 1,
	.supports_tv = 1,
	.ring_mask = RENDER_RING | BSD_RING,
};


#define GEN5_FEATURES \
	GEN(5), \
        .num_pipes = 2, \
        .has_hotplug = 1, \
        .ring_mask = RENDER_RING | BSD_RING, \
        .has_snoop = true, \
	/* ilk does support rc6, but we do not implement [power] contexts */ \
        .has_rc6 = 0, \
        GEN_DEFAULT_PIPEOFFSETS, \
        GEN_DEFAULT_PAGE_SIZES, \
        CURSOR_OFFSETS


static const struct intel_device_info intel_ironlake_d_info = {
	GEN5_FEATURES,
	PLATFORM(INTEL_IRONLAKE),
};


static const struct intel_device_info intel_ironlake_m_info = {
	GEN5_FEATURES,
	PLATFORM(INTEL_IRONLAKE),
	.is_mobile = 1, .has_fbc = 1,
};


#define GEN6_FEATURES \
	GEN(6), \
        .num_pipes = 2, \
        .has_hotplug = 1, \
        .has_fbc = 1, \
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING, \
        .has_llc = 1, \
        .has_rc6 = 1, \
        .has_rc6p = 1, \
        .has_aliasing_ppgtt = 1, \
        GEN_DEFAULT_PIPEOFFSETS, \
        GEN_DEFAULT_PAGE_SIZES, \
        CURSOR_OFFSETS


#define SNB_D_PLATFORM \
	GEN6_FEATURES, \
        PLATFORM(INTEL_SANDYBRIDGE)


static const struct intel_device_info intel_sandybridge_d_gt1_info = {
	SNB_D_PLATFORM,
	.gt = 1,
};


static const struct intel_device_info intel_sandybridge_d_gt2_info = {
	SNB_D_PLATFORM,
	.gt = 2,
};


#define SNB_M_PLATFORM \
	GEN6_FEATURES, \
        PLATFORM(INTEL_SANDYBRIDGE), \
        .is_mobile = 1



static const struct intel_device_info intel_sandybridge_m_gt1_info = {
	SNB_M_PLATFORM,
	.gt = 1,
};


static const struct intel_device_info intel_sandybridge_m_gt2_info = {
	SNB_M_PLATFORM,
	.gt = 2,
};


#define GEN7_FEATURES  \
	GEN(7), \
        .num_pipes = 3, \
        .has_hotplug = 1, \
        .has_fbc = 1, \
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING, \
        .has_llc = 1, \
        .has_rc6 = 1, \
        .has_rc6p = 1, \
        .has_aliasing_ppgtt = 1, \
        .has_full_ppgtt = 1, \
        GEN_DEFAULT_PIPEOFFSETS, \
        GEN_DEFAULT_PAGE_SIZES, \
        IVB_CURSOR_OFFSETS


#define IVB_D_PLATFORM \
	GEN7_FEATURES, \
        PLATFORM(INTEL_IVYBRIDGE), \
        .has_l3_dpf = 1


static const struct intel_device_info intel_ivybridge_d_gt1_info = {
	IVB_D_PLATFORM,
	.gt = 1,
};


static const struct intel_device_info intel_ivybridge_d_gt2_info = {
	IVB_D_PLATFORM,
	.gt = 2,
};


#define IVB_M_PLATFORM \
	GEN7_FEATURES, \
        PLATFORM(INTEL_IVYBRIDGE), \
        .is_mobile = 1, \
        .has_l3_dpf = 1


static const struct intel_device_info intel_ivybridge_m_gt1_info = {
	IVB_M_PLATFORM,
	.gt = 1,
};


static const struct intel_device_info intel_ivybridge_m_gt2_info = {
	IVB_M_PLATFORM,
	.gt = 2,
};


static const struct intel_device_info intel_ivybridge_q_info = {
	GEN7_FEATURES,
	PLATFORM(INTEL_IVYBRIDGE),
	.gt = 2,
	.num_pipes = 0, /* legal, last one wins */
	.has_l3_dpf = 1,
};


static const struct intel_device_info intel_valleyview_info = {
	PLATFORM(INTEL_VALLEYVIEW),
	GEN(7),
	.is_lp = 1,
	.num_pipes = 2,
	.has_psr = 1,
	.has_runtime_pm = 1,
	.has_rc6 = 1,
	.has_gmch_display = 1,
	.has_hotplug = 1,
	.has_aliasing_ppgtt = 1,
	.has_full_ppgtt = 1,
	.has_snoop = true,
	.ring_mask = RENDER_RING | BSD_RING | BLT_RING,
	.display_mmio_offset = VLV_DISPLAY_BASE,
	GEN_DEFAULT_PAGE_SIZES,
	GEN_DEFAULT_PIPEOFFSETS,
	CURSOR_OFFSETS
};


#define G75_FEATURES  \
	GEN7_FEATURES, \
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, \
        .has_ddi = 1, \
        .has_fpga_dbg = 1, \
        .has_psr = 1, \
        .has_resource_streamer = 1, \
        .has_dp_mst = 1, \
        .has_rc6p = 0 /* RC6p removed-by HSW */, \
        .has_runtime_pm = 1


#define HSW_PLATFORM \
	G75_FEATURES, \
        PLATFORM(INTEL_HASWELL), \
        .has_l3_dpf = 1


static const struct intel_device_info intel_haswell_gt1_info = {
	HSW_PLATFORM,
	.gt = 1,
};


static const struct intel_device_info intel_haswell_gt2_info = {
	HSW_PLATFORM,
	.gt = 2,
};


static const struct intel_device_info intel_haswell_gt3_info = {
	HSW_PLATFORM,
	.gt = 3,
};


#define GEN8_FEATURES \
	G75_FEATURES, \
        GEN(8), \
        BDW_COLORS, \
        .page_sizes = I915_GTT_PAGE_SIZE_4K | \
                      I915_GTT_PAGE_SIZE_2M, \
        .has_logical_ring_contexts = 1, \
        .has_full_48bit_ppgtt = 1, \
        .has_64bit_reloc = 1, \
        .has_reset_engine = 1


#define BDW_PLATFORM \
	GEN8_FEATURES, \
        PLATFORM(INTEL_BROADWELL)


static const struct intel_device_info intel_broadwell_gt1_info = {
	BDW_PLATFORM,
	.gt = 1,
};


static const struct intel_device_info intel_broadwell_gt2_info = {
	BDW_PLATFORM,
	.gt = 2,
};


static const struct intel_device_info intel_broadwell_rsvd_info = {
	BDW_PLATFORM,
	.gt = 3,
	/* According to the device ID those devices are GT3, they were
         * previously treated as not GT3, keep it like that.
         */
};


static const struct intel_device_info intel_broadwell_gt3_info = {
	BDW_PLATFORM,
	.gt = 3,
	.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
};


static const struct intel_device_info intel_cherryview_info = {
	PLATFORM(INTEL_CHERRYVIEW),
	GEN(8),
	.num_pipes = 3,
	.has_hotplug = 1,
	.is_lp = 1,
	.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
	.has_64bit_reloc = 1,
	.has_psr = 1,
	.has_runtime_pm = 1,
	.has_resource_streamer = 1,
	.has_rc6 = 1,
	.has_logical_ring_contexts = 1,
	.has_gmch_display = 1,
	.has_aliasing_ppgtt = 1,
	.has_full_ppgtt = 1,
	.has_reset_engine = 1,
	.has_snoop = true,
	.display_mmio_offset = VLV_DISPLAY_BASE,
	GEN_DEFAULT_PAGE_SIZES,
	GEN_CHV_PIPEOFFSETS,
	CURSOR_OFFSETS,
	CHV_COLORS,
};


#define GEN9_DEFAULT_PAGE_SIZES \
	.page_sizes = I915_GTT_PAGE_SIZE_4K | \
                      I915_GTT_PAGE_SIZE_64K | \
                      I915_GTT_PAGE_SIZE_2M


#define GEN9_FEATURES \
	GEN8_FEATURES, \
        GEN(9), \
        GEN9_DEFAULT_PAGE_SIZES, \
        .has_logical_ring_preemption = 1, \
        .has_csr = 1, \
        .has_guc = 1, \
        .has_ipc = 1, \
        .ddb_size = 896


#define SKL_PLATFORM \
	GEN9_FEATURES, \
        PLATFORM(INTEL_SKYLAKE)


static const struct intel_device_info intel_skylake_gt1_info = {
	SKL_PLATFORM,
	.gt = 1,
};


static const struct intel_device_info intel_skylake_gt2_info = {
	SKL_PLATFORM,
	.gt = 2,
};


#define SKL_GT3_PLUS_PLATFORM \
	SKL_PLATFORM, \
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING



static const struct intel_device_info intel_skylake_gt3_info = {
	SKL_GT3_PLUS_PLATFORM,
	.gt = 3,
};


static const struct intel_device_info intel_skylake_gt4_info = {
	SKL_GT3_PLUS_PLATFORM,
	.gt = 4,
};


#define GEN9_LP_FEATURES \
	GEN(9), \
        .is_lp = 1, \
        .has_hotplug = 1, \
        .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, \
        .num_pipes = 3, \
        .has_64bit_reloc = 1, \
        .has_ddi = 1, \
        .has_fpga_dbg = 1, \
        .has_fbc = 1, \
        .has_psr = 1, \
        .has_runtime_pm = 1, \
        .has_pooled_eu = 0, \
        .has_csr = 1, \
        .has_resource_streamer = 1, \
        .has_rc6 = 1, \
        .has_dp_mst = 1, \
        .has_logical_ring_contexts = 1, \
        .has_logical_ring_preemption = 1, \
        .has_guc = 1, \
        .has_aliasing_ppgtt = 1, \
        .has_full_ppgtt = 1, \
        .has_full_48bit_ppgtt = 1, \
        .has_reset_engine = 1, \
        .has_snoop = true, \
        .has_ipc = 1, \
        GEN9_DEFAULT_PAGE_SIZES, \
        GEN_DEFAULT_PIPEOFFSETS, \
        IVB_CURSOR_OFFSETS, \
        BDW_COLORS


static const struct intel_device_info intel_broxton_info = {
	GEN9_LP_FEATURES,
	PLATFORM(INTEL_BROXTON),
	.ddb_size = 512,
};


static const struct intel_device_info intel_geminilake_info = {
	GEN9_LP_FEATURES,
	PLATFORM(INTEL_GEMINILAKE),
	.ddb_size = 1024,
	GLK_COLORS,
};


#define KBL_PLATFORM \
	GEN9_FEATURES, \
        PLATFORM(INTEL_KABYLAKE)


static const struct intel_device_info intel_kabylake_gt1_info = {
	KBL_PLATFORM,
	.gt = 1,
};


static const struct intel_device_info intel_kabylake_gt2_info = {
	KBL_PLATFORM,
	.gt = 2,
};


static const struct intel_device_info intel_kabylake_gt3_info = {
	KBL_PLATFORM,
	.gt = 3,
	.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
};


#define CFL_PLATFORM \
	GEN9_FEATURES, \
        PLATFORM(INTEL_COFFEELAKE)


static const struct intel_device_info intel_coffeelake_gt1_info = {
	CFL_PLATFORM,
	.gt = 1,
};


static const struct intel_device_info intel_coffeelake_gt2_info = {
	CFL_PLATFORM,
	.gt = 2,
};


static const struct intel_device_info intel_coffeelake_gt3_info = {
	CFL_PLATFORM,
	.gt = 3,
	.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
};


#define GEN10_FEATURES \
	GEN9_FEATURES, \
        GEN(10), \
        .ddb_size = 1024, \
        GLK_COLORS


static const struct intel_device_info intel_cannonlake_info = {
	GEN10_FEATURES,
	PLATFORM(INTEL_CANNONLAKE),
	.gt = 2,
};


#define GEN11_FEATURES \
	GEN10_FEATURES, \
        GEN(11), \
        .ddb_size = 2048, \
        .has_csr = 0, \
        .has_logical_ring_elsq = 1


static const struct intel_device_info intel_icelake_11_info = {
	GEN11_FEATURES,
	PLATFORM(INTEL_ICELAKE),
	.is_alpha_support = 1,
	.has_resource_streamer = 0,
};

#undef GEN
#undef PLATFORM

/*
 * Make sure any device matches here are from most specific to most
 * general.  For example, since the Quanta match is based on the subsystem
 * and subvendor IDs, we need it to come before the more general IVB
 * PCI ID matches, otherwise we'll use the wrong info struct above.
 */

static const struct pci_device_id pciidlist[] = {
	INTEL_I830_IDS(&intel_i830_info),
	INTEL_I845G_IDS(&intel_i845g_info),
	INTEL_I85X_IDS(&intel_i85x_info),
	INTEL_I865G_IDS(&intel_i865g_info),
	INTEL_I915G_IDS(&intel_i915g_info),
	INTEL_I915GM_IDS(&intel_i915gm_info),
	INTEL_I945G_IDS(&intel_i945g_info),
	INTEL_I945GM_IDS(&intel_i945gm_info),
	INTEL_I965G_IDS(&intel_i965g_info),
	INTEL_G33_IDS(&intel_g33_info),
	INTEL_I965GM_IDS(&intel_i965gm_info),
	INTEL_GM45_IDS(&intel_gm45_info),
	INTEL_G45_IDS(&intel_g45_info),
	INTEL_PINEVIEW_IDS(&intel_pineview_info),
	INTEL_IRONLAKE_D_IDS(&intel_ironlake_d_info),
	INTEL_IRONLAKE_M_IDS(&intel_ironlake_m_info),
	INTEL_SNB_D_GT1_IDS(&intel_sandybridge_d_gt1_info),
	INTEL_SNB_D_GT2_IDS(&intel_sandybridge_d_gt2_info),
	INTEL_SNB_M_GT1_IDS(&intel_sandybridge_m_gt1_info),
	INTEL_SNB_M_GT2_IDS(&intel_sandybridge_m_gt2_info),
	INTEL_IVB_Q_IDS(&intel_ivybridge_q_info), /* must be first IVB */
	INTEL_IVB_M_GT1_IDS(&intel_ivybridge_m_gt1_info),
	INTEL_IVB_M_GT2_IDS(&intel_ivybridge_m_gt2_info),
	INTEL_IVB_D_GT1_IDS(&intel_ivybridge_d_gt1_info),
	INTEL_IVB_D_GT2_IDS(&intel_ivybridge_d_gt2_info),
	INTEL_HSW_GT1_IDS(&intel_haswell_gt1_info),
	INTEL_HSW_GT2_IDS(&intel_haswell_gt2_info),
	INTEL_HSW_GT3_IDS(&intel_haswell_gt3_info),
	INTEL_VLV_IDS(&intel_valleyview_info),
	INTEL_BDW_GT1_IDS(&intel_broadwell_gt1_info),
	INTEL_BDW_GT2_IDS(&intel_broadwell_gt2_info),
	INTEL_BDW_GT3_IDS(&intel_broadwell_gt3_info),
	INTEL_BDW_RSVD_IDS(&intel_broadwell_rsvd_info),
	INTEL_CHV_IDS(&intel_cherryview_info),
	INTEL_SKL_GT1_IDS(&intel_skylake_gt1_info),
	INTEL_SKL_GT2_IDS(&intel_skylake_gt2_info),
	INTEL_SKL_GT3_IDS(&intel_skylake_gt3_info),
	INTEL_SKL_GT4_IDS(&intel_skylake_gt4_info),
	INTEL_BXT_IDS(&intel_broxton_info),
	INTEL_GLK_IDS(&intel_geminilake_info),
	INTEL_KBL_GT1_IDS(&intel_kabylake_gt1_info),
	INTEL_KBL_GT2_IDS(&intel_kabylake_gt2_info),
	INTEL_KBL_GT3_IDS(&intel_kabylake_gt3_info),
	INTEL_KBL_GT4_IDS(&intel_kabylake_gt3_info),
	INTEL_CFL_S_GT1_IDS(&intel_coffeelake_gt1_info),
	INTEL_CFL_S_GT2_IDS(&intel_coffeelake_gt2_info),
	INTEL_CFL_H_GT2_IDS(&intel_coffeelake_gt2_info),
	INTEL_CFL_U_GT1_IDS(&intel_coffeelake_gt1_info),
	INTEL_CFL_U_GT2_IDS(&intel_coffeelake_gt2_info),
	INTEL_CFL_U_GT3_IDS(&intel_coffeelake_gt3_info),
	INTEL_CNL_IDS(&intel_cannonlake_info),
	INTEL_ICL_11_IDS(&intel_icelake_11_info),
	{0, 0, 0}
};
MODULE_DEVICE_TABLE(pci, pciidlist);




static void i915_pci_remove(struct pci_dev *pdev)
{
	struct drm_device *dev = pci_get_drvdata(pdev);

	i915_driver_unload(dev);
	drm_dev_put(dev);
}


Contributors
PersonTokensPropCommitsCommitProp
Chris Wilson3096.77%150.00%


Harsha Sharma13.23%150.00%


Total31100.00%2100.00%






static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	struct intel_device_info *intel_info =
		(struct intel_device_info *) ent->driver_data;
	int err;

	if (IS_ALPHA_SUPPORT(intel_info) && !i915_modparams.alpha_support) {
		DRM_INFO("The driver support for your hardware in this kernel version is alpha quality\n"
			 "See CONFIG_DRM_I915_ALPHA_SUPPORT or i915.alpha_support module parameter\n"
			 "to enable support in this kernel version, or check for kernel updates.\n");
		return -ENODEV;
	}

	/* Only bind to function 0 of the device. Early generations
         * used function 1 as a placeholder for multi-head. This causes
         * us confusion instead, especially on the systems where both
         * functions have the same PCI-ID!
         */
	if (PCI_FUNC(pdev->devfn))
		return -ENODEV;

	/*
         * apple-gmux is needed on dual GPU MacBook Pro
         * to probe the panel if we're the inactive GPU.
         */
	if (vga_switcheroo_client_probe_defer(pdev))
		return -EPROBE_DEFER;

	err = i915_driver_load(pdev, ent);
	if (err)
		return err;

	err = i915_live_selftests(pdev);
	if (err) {
		i915_pci_remove(pdev);
		return err > 0 ? -ENOTTY : err;
	}

	return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Chris Wilson12695.45%250.00%


Jani Nikula53.79%125.00%


Michal Wajdeczko10.76%125.00%


Total132100.00%4100.00%




static struct pci_driver i915_pci_driver = {
	.name = DRIVER_NAME,
	.id_table = pciidlist,
	.probe = i915_pci_probe,
	.remove = i915_pci_remove,
	.driver.pm = &i915_pm_ops,
};




static int __init i915_init(void)
{
	bool use_kms = true;
	int err;

	err = i915_mock_selftests();
	if (err)
		return err > 0 ? 0 : err;

	/*
         * Enable KMS by default, unless explicitly overriden by
         * either the i915.modeset prarameter or by the
         * vga_text_mode_force boot option.
         */

	if (i915_modparams.modeset == 0)
		use_kms = false;

	if (vgacon_text_force() && i915_modparams.modeset == -1)
		use_kms = false;

	if (!use_kms) {
		/* Silently fail loading to not upset userspace. */
		DRM_DEBUG_DRIVER("KMS disabled.\n");
		return 0;
	}

	return pci_register_driver(&i915_pci_driver);
}


Contributors
PersonTokensPropCommitsCommitProp
Chris Wilson8597.70%266.67%


Michal Wajdeczko22.30%133.33%


Total87100.00%3100.00%






static void __exit i915_exit(void)
{
	if (!i915_pci_driver.driver.owner)
		return;

	pci_unregister_driver(&i915_pci_driver);
}


Contributors
PersonTokensPropCommitsCommitProp
Chris Wilson25100.00%1100.00%


Total25100.00%1100.00%



module_init(i915_init);
module_exit(i915_exit);

MODULE_AUTHOR("Tungsten Graphics, Inc.");
MODULE_AUTHOR("Intel Corporation");

MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");

Overall Contributors
PersonTokensPropCommitsCommitProp
Chris Wilson129760.75%1015.38%


Lionel Landwerlin33515.69%11.54%


Rodrigo Vivi2019.41%1218.46%


Carlos Santa1145.34%1624.62%


Jani Nikula914.26%710.77%


Ander Conselvan de Oliveira200.94%34.62%


Michel Thierry150.70%23.08%


Matthew Auld140.66%23.08%


Anusha Srivatsa130.61%34.62%


Paulo Zanoni110.52%23.08%


Deepak M70.33%11.54%


Joonas Lahtinen50.23%11.54%


Ville Syrjälä50.23%11.54%


Michal Wajdeczko30.14%11.54%


Praveen Paneri20.09%11.54%


Thomas Daniel10.05%11.54%


Harsha Sharma10.05%11.54%


Total2135100.00%65100.00%


Directory: drivers/gpu/drm/i915



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