From: Tvrtko Ursulin tvrtko.ursulin@intel.com

Continuation of the effort to declutter i915_drv.h.

Also, component specific helpers which consult the iommu/virtualization helpers moved to respective component source/header files as appropriate.

v2: * s/dev_priv/i915/ in intel_scanout_needs_vtd_wa. (Lucas)

Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com Acked-by: Jani Nikula jani.nikula@intel.com Reviewed-by: Lucas De Marchi lucas.demarchi@intel.com --- drivers/gpu/drm/i915/display/intel_bw.c | 3 +- drivers/gpu/drm/i915/display/intel_display.c | 8 ++++- drivers/gpu/drm/i915/display/intel_display.h | 2 ++ drivers/gpu/drm/i915/display/intel_fbc.c | 3 +- drivers/gpu/drm/i915/gem/i915_gem_stolen.c | 3 +- drivers/gpu/drm/i915/gem/i915_gemfs.c | 3 +- drivers/gpu/drm/i915/gt/intel_ggtt.c | 5 +-- drivers/gpu/drm/i915/gt/intel_gtt.c | 12 +++++++ drivers/gpu/drm/i915/gt/intel_gtt.h | 2 ++ drivers/gpu/drm/i915/i915_debugfs.c | 1 + drivers/gpu/drm/i915/i915_driver.c | 3 +- drivers/gpu/drm/i915/i915_driver.h | 4 +++ drivers/gpu/drm/i915/i915_drv.h | 37 -------------------- drivers/gpu/drm/i915/i915_gpu_error.c | 3 +- drivers/gpu/drm/i915/i915_utils.c | 11 ++++++ drivers/gpu/drm/i915/i915_utils.h | 8 +++++ drivers/gpu/drm/i915/intel_device_info.c | 3 +- drivers/gpu/drm/i915/intel_pch.c | 3 +- 18 files changed, 66 insertions(+), 48 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index ac11ff19e47d..c93454f46d30 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -6,6 +6,7 @@ #include <drm/drm_atomic_state_helper.h>

#include "i915_reg.h" +#include "i915_utils.h" #include "intel_atomic.h" #include "intel_bw.h" #include "intel_cdclk.h" @@ -649,7 +650,7 @@ static unsigned int intel_bw_data_rate(struct drm_i915_private *dev_priv, for_each_pipe(dev_priv, pipe) data_rate += bw_state->data_rate[pipe];

- if (DISPLAY_VER(dev_priv) >= 13 && intel_vtd_active(dev_priv)) + if (DISPLAY_VER(dev_priv) >= 13 && i915_vtd_active(dev_priv)) data_rate = DIV_ROUND_UP(data_rate * 105, 100);

return data_rate; diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index dc6e21e4ef0b..3432d25b1d88 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -77,6 +77,7 @@ #include "g4x_hdmi.h" #include "hsw_ips.h" #include "i915_drv.h" +#include "i915_utils.h" #include "icl_dsi.h" #include "intel_acpi.h" #include "intel_atomic.h" @@ -1197,7 +1198,7 @@ static bool needs_async_flip_vtd_wa(const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);

- return crtc_state->uapi.async_flip && intel_vtd_active(i915) && + return crtc_state->uapi.async_flip && i915_vtd_active(i915) && (DISPLAY_VER(i915) == 9 || IS_BROADWELL(i915) || IS_HASWELL(i915)); }

@@ -10699,3 +10700,8 @@ void intel_display_driver_unregister(struct drm_i915_private *i915) acpi_video_unregister(); intel_opregion_unregister(i915); } + +bool intel_scanout_needs_vtd_wa(struct drm_i915_private *i915) +{ + return DISPLAY_VER(i915) >= 6 && i915_vtd_active(i915); +} diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 8513703086b7..867fa248f042 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -694,4 +694,6 @@ void assert_transcoder(struct drm_i915_private *dev_priv, #define I915_STATE_WARN_ON(x) \ I915_STATE_WARN((x), "%s", "WARN_ON(" __stringify(x) ")")

+bool intel_scanout_needs_vtd_wa(struct drm_i915_private *i915); + #endif diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 142280b6ce6d..b653f3ba7c66 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -43,6 +43,7 @@ #include <drm/drm_fourcc.h>

#include "i915_drv.h" +#include "i915_utils.h" #include "i915_vgpu.h" #include "intel_cdclk.h" #include "intel_de.h" @@ -1643,7 +1644,7 @@ static int intel_sanitize_fbc_option(struct drm_i915_private *i915) static bool need_fbc_vtd_wa(struct drm_i915_private *i915) { /* WaFbcTurnOffFbcWhenHyperVisorIsUsed:skl,bxt */ - if (intel_vtd_active(i915) && + if (i915_vtd_active(i915) && (IS_SKYLAKE(i915) || IS_BROXTON(i915))) { drm_info(&i915->drm, "Disabling framebuffer compression (FBC) to prevent screen flicker with VT-d enabled\n"); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c index 143f61aaa867..47b5e0e342ab 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c @@ -17,6 +17,7 @@ #include "i915_drv.h" #include "i915_gem_stolen.h" #include "i915_reg.h" +#include "i915_utils.h" #include "i915_vgpu.h" #include "intel_mchbar_regs.h"

@@ -403,7 +404,7 @@ static int i915_gem_init_stolen(struct intel_memory_region *mem) return 0; }

- if (intel_vtd_active(i915) && GRAPHICS_VER(i915) < 8) { + if (i915_vtd_active(i915) && GRAPHICS_VER(i915) < 8) { drm_notice(&i915->drm, "%s, disabling use of stolen memory\n", "DMAR active"); diff --git a/drivers/gpu/drm/i915/gem/i915_gemfs.c b/drivers/gpu/drm/i915/gem/i915_gemfs.c index 7271fbf813fa..ee87874e59dc 100644 --- a/drivers/gpu/drm/i915/gem/i915_gemfs.c +++ b/drivers/gpu/drm/i915/gem/i915_gemfs.c @@ -9,6 +9,7 @@

#include "i915_drv.h" #include "i915_gemfs.h" +#include "i915_utils.h"

int i915_gemfs_init(struct drm_i915_private *i915) { @@ -32,7 +33,7 @@ int i915_gemfs_init(struct drm_i915_private *i915) */

opts = NULL; - if (intel_vtd_active(i915)) { + if (i915_vtd_active(i915)) { if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) { opts = huge_opt; drm_info(&i915->drm, diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c index 04191fe2ee34..86b2cd2a9f34 100644 --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c @@ -18,6 +18,7 @@ #include "intel_gt_regs.h" #include "i915_drv.h" #include "i915_scatterlist.h" +#include "i915_utils.h" #include "i915_vgpu.h"

#include "intel_gtt.h" @@ -104,7 +105,7 @@ static bool needs_idle_maps(struct drm_i915_private *i915) * Query intel_iommu to see if we need the workaround. Presumably that * was loaded first. */ - if (!intel_vtd_active(i915)) + if (!i915_vtd_active(i915)) return false;

if (GRAPHICS_VER(i915) == 5 && IS_MOBILE(i915)) @@ -1258,7 +1259,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *i915) if (ret) return ret;

- if (intel_vtd_active(i915)) + if (i915_vtd_active(i915)) drm_info(&i915->drm, "VT-d active for gfx access\n");

return 0; diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c index 719fd31eee80..b67831833c9a 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.c +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c @@ -13,10 +13,22 @@ #include "gem/i915_gem_internal.h" #include "gem/i915_gem_lmem.h" #include "i915_trace.h" +#include "i915_utils.h" #include "intel_gt.h" #include "intel_gt_regs.h" #include "intel_gtt.h"

+ +static bool intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915) +{ + return IS_BROXTON(i915) && i915_vtd_active(i915); +} + +bool intel_vm_no_concurrent_access_wa(struct drm_i915_private *i915) +{ + return IS_CHERRYVIEW(i915) || intel_ggtt_update_needs_vtd_wa(i915); +} + struct drm_i915_gem_object *alloc_pt_lmem(struct i915_address_space *vm, int sz) { struct drm_i915_gem_object *obj; diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h index 4529b5e9f6e6..5922e2cf4d8d 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.h +++ b/drivers/gpu/drm/i915/gt/intel_gtt.h @@ -382,6 +382,8 @@ struct i915_ppgtt { #define i915_is_dpt(vm) ((vm)->is_dpt) #define i915_is_ggtt_or_dpt(vm) (i915_is_ggtt(vm) || i915_is_dpt(vm))

+bool intel_vm_no_concurrent_access_wa(struct drm_i915_private *i915); + int __must_check i915_vm_lock_objects(struct i915_address_space *vm, struct i915_gem_ww_ctx *ww);

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 445b4da23950..94e5c29d2ee3 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -48,6 +48,7 @@

#include "i915_debugfs.h" #include "i915_debugfs_params.h" +#include "i915_driver.h" #include "i915_irq.h" #include "i915_scheduler.h" #include "intel_mchbar_regs.h" diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c index 64e6f76861f9..15808ecc421a 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -88,6 +88,7 @@ #include "i915_suspend.h" #include "i915_switcheroo.h" #include "i915_sysfs.h" +#include "i915_utils.h" #include "i915_vgpu.h" #include "intel_dram.h" #include "intel_gvt.h" @@ -744,7 +745,7 @@ void i915_print_iommu_status(struct drm_i915_private *i915, struct drm_printer *p) { drm_printf(p, "iommu: %s\n", - str_enabled_disabled(intel_vtd_active(i915))); + str_enabled_disabled(i915_vtd_active(i915))); }

static void i915_welcome_messages(struct drm_i915_private *dev_priv) diff --git a/drivers/gpu/drm/i915/i915_driver.h b/drivers/gpu/drm/i915/i915_driver.h index 9d11de65daaf..44ec543d92cb 100644 --- a/drivers/gpu/drm/i915/i915_driver.h +++ b/drivers/gpu/drm/i915/i915_driver.h @@ -11,6 +11,7 @@ struct pci_dev; struct pci_device_id; struct drm_i915_private; +struct drm_printer;

#define DRIVER_NAME "i915" #define DRIVER_DESC "Intel Graphics" @@ -26,4 +27,7 @@ void i915_driver_shutdown(struct drm_i915_private *i915); int i915_driver_resume_switcheroo(struct drm_i915_private *i915); int i915_driver_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state);

+void +i915_print_iommu_status(struct drm_i915_private *i915, struct drm_printer *p); + #endif /* __I915_DRIVER_H__ */ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 217c09422711..799f386a7ef2 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -32,9 +32,6 @@

#include <uapi/drm/i915_drm.h>

-#include <asm/hypervisor.h> - -#include <linux/intel-iommu.h> #include <linux/pm_qos.h>

#include <drm/drm_connector.h> @@ -1387,43 +1384,9 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define HAS_PERCTX_PREEMPT_CTRL(i915) \ ((GRAPHICS_VER(i915) >= 9) && GRAPHICS_VER_FULL(i915) < IP_VER(12, 55))

-static inline bool run_as_guest(void) -{ - return !hypervisor_is_type(X86_HYPER_NATIVE); -} - #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \ IS_ALDERLAKE_S(dev_priv))

-static inline bool intel_vtd_active(struct drm_i915_private *i915) -{ - if (device_iommu_mapped(i915->drm.dev)) - return true; - - /* Running as a guest, we assume the host is enforcing VT'd */ - return run_as_guest(); -} - -void -i915_print_iommu_status(struct drm_i915_private *i915, struct drm_printer *p); - -static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv) -{ - return DISPLAY_VER(dev_priv) >= 6 && intel_vtd_active(dev_priv); -} - -static inline bool -intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915) -{ - return IS_BROXTON(i915) && intel_vtd_active(i915); -} - -static inline bool -intel_vm_no_concurrent_access_wa(struct drm_i915_private *i915) -{ - return IS_CHERRYVIEW(i915) || intel_ggtt_update_needs_vtd_wa(i915); -} - /* i915_gem.c */ void i915_gem_init_early(struct drm_i915_private *dev_priv); void i915_gem_cleanup_early(struct drm_i915_private *dev_priv); diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 795f91a88d1d..5478b1dd26bd 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -55,6 +55,7 @@ #include "i915_gpu_error.h" #include "i915_memcpy.h" #include "i915_scatterlist.h" +#include "i915_utils.h"

#define ALLOW_FAIL (__GFP_KSWAPD_RECLAIM | __GFP_RETRY_MAYFAIL | __GFP_NOWARN) #define ATOMIC_MAYFAIL (GFP_ATOMIC | __GFP_NOWARN) @@ -1892,7 +1893,7 @@ static void capture_gen(struct i915_gpu_coredump *error) error->wakelock = atomic_read(&i915->runtime_pm.wakeref_count); error->suspended = i915->runtime_pm.suspended;

- error->iommu = intel_vtd_active(i915); + error->iommu = i915_vtd_active(i915); error->reset_count = i915_reset_count(&i915->gpu_error); error->suspend_count = i915->suspend_count;

diff --git a/drivers/gpu/drm/i915/i915_utils.c b/drivers/gpu/drm/i915/i915_utils.c index f9e780dee9de..29fd02bf5ea8 100644 --- a/drivers/gpu/drm/i915/i915_utils.c +++ b/drivers/gpu/drm/i915/i915_utils.c @@ -3,6 +3,8 @@ * Copyright © 2019 Intel Corporation */

+#include <linux/device.h> + #include <drm/drm_drv.h>

#include "i915_drv.h" @@ -114,3 +116,12 @@ void set_timer_ms(struct timer_list *t, unsigned long timeout) /* Keep t->expires = 0 reserved to indicate a canceled timer. */ mod_timer(t, jiffies + timeout ?: 1); } + +bool i915_vtd_active(struct drm_i915_private *i915) +{ + if (device_iommu_mapped(i915->drm.dev)) + return true; + + /* Running as a guest, we assume the host is enforcing VT'd */ + return i915_run_as_guest(); +} diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h index 3ff9611ff81c..b2d89c43f24d 100644 --- a/drivers/gpu/drm/i915/i915_utils.h +++ b/drivers/gpu/drm/i915/i915_utils.h @@ -32,6 +32,7 @@ #include <linux/types.h> #include <linux/workqueue.h> #include <linux/sched/clock.h> +#include <asm/hypervisor.h>

struct drm_i915_private; struct timer_list; @@ -425,4 +426,11 @@ static inline bool timer_expired(const struct timer_list *t) return timer_active(t) && !timer_pending(t); }

+static inline bool i915_run_as_guest(void) +{ + return !hypervisor_is_type(X86_HYPER_NATIVE); +} + +bool i915_vtd_active(struct drm_i915_private *i915); + #endif /* !__I915_UTILS_H */ diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 8d458226f478..da30be07544d 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -31,6 +31,7 @@ #include "display/intel_de.h" #include "intel_device_info.h" #include "i915_drv.h" +#include "i915_utils.h"

#define PLATFORM_NAME(x) [INTEL_##x] = #x static const char * const platform_names[] = { @@ -389,7 +390,7 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv) info->display.has_dsc = 0; }

- if (GRAPHICS_VER(dev_priv) == 6 && intel_vtd_active(dev_priv)) { + if (GRAPHICS_VER(dev_priv) == 6 && i915_vtd_active(dev_priv)) { drm_info(&dev_priv->drm, "Disabling ppGTT for VT-d support\n"); info->ppgtt_type = INTEL_PPGTT_NONE; diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c index 4cce044efde2..e2b2bbdc0714 100644 --- a/drivers/gpu/drm/i915/intel_pch.c +++ b/drivers/gpu/drm/i915/intel_pch.c @@ -4,6 +4,7 @@ */

#include "i915_drv.h" +#include "i915_utils.h" #include "intel_pch.h"

/* Map PCH device id to PCH type, or PCH_NONE if unknown. */ @@ -256,7 +257,7 @@ void intel_detect_pch(struct drm_i915_private *dev_priv) dev_priv->pch_type = PCH_NOP; dev_priv->pch_id = 0; } else if (!pch) { - if (run_as_guest() && HAS_DISPLAY(dev_priv)) { + if (i915_run_as_guest() && HAS_DISPLAY(dev_priv)) { intel_virt_detect_pch(dev_priv, &id, &pch_type); dev_priv->pch_type = pch_type; dev_priv->pch_id = id;