From: Tvrtko Ursulin tvrtko.ursulin@intel.com
...
Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com --- Typed up how I see it - bash away. --- drivers/gpu/drm/i915/display/intel_bw.c | 3 +- drivers/gpu/drm/i915/display/intel_display.c | 9 ++++- 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/intel_device_info.c | 4 ++- drivers/gpu/drm/i915/intel_pch.c | 3 +- drivers/gpu/drm/i915/intel_vtd.h | 27 ++++++++++++++ 17 files changed, 76 insertions(+), 48 deletions(-) create mode 100644 drivers/gpu/drm/i915/intel_vtd.h
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index ac11ff19e47d..6c9cb4f97218 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -13,6 +13,7 @@ #include "intel_mchbar_regs.h" #include "intel_pcode.h" #include "intel_pm.h" +#include "intel_vtd.h"
/* Parameters for Qclk Geyserville (QGV) */ struct intel_qgv_point { @@ -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 && intel_vtd_active(dev_priv->drm.dev)) 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..e80f3ca3ee4e 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -110,6 +110,7 @@ #include "intel_quirks.h" #include "intel_sprite.h" #include "intel_tc.h" +#include "intel_vtd.h" #include "intel_vga.h" #include "i9xx_plane.h" #include "skl_scaler.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 && intel_vtd_active(i915->drm.dev) && (DISPLAY_VER(i915) == 9 || IS_BROADWELL(i915) || IS_HASWELL(i915)); }
@@ -10699,3 +10700,9 @@ 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 *dev_priv) +{ + return DISPLAY_VER(dev_priv) >= 6 && + intel_vtd_active(dev_priv->drm.dev); +} diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 8513703086b7..d69587c76e71 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 *dev_priv); + #endif diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 142280b6ce6d..00a3e30587a5 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -50,6 +50,7 @@ #include "intel_display_types.h" #include "intel_fbc.h" #include "intel_frontbuffer.h" +#include "intel_vtd.h"
#define for_each_fbc_id(__dev_priv, __fbc_id) \ for ((__fbc_id) = INTEL_FBC_A; (__fbc_id) < I915_MAX_FBCS; (__fbc_id)++) \ @@ -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 (intel_vtd_active(i915->drm.dev) && (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..9b986b1b0b60 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c @@ -19,6 +19,7 @@ #include "i915_reg.h" #include "i915_vgpu.h" #include "intel_mchbar_regs.h" +#include "intel_vtd.h"
/* * The BIOS typically reserves some of the system's memory for the exclusive @@ -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 (intel_vtd_active(i915->drm.dev) && 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..271826642bd4 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 "intel_vtd.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 (intel_vtd_active(i915->drm.dev)) { 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..386181cec300 100644 --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c @@ -21,6 +21,7 @@ #include "i915_vgpu.h"
#include "intel_gtt.h" +#include "intel_vtd.h" #include "gen8_ppgtt.h"
static void i915_ggtt_color_adjust(const struct drm_mm_node *node, @@ -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 (!intel_vtd_active(i915->drm.dev)) 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 (intel_vtd_active(i915->drm.dev)) 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 aed6de2d5a79..ee17e987cddc 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.c +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c @@ -16,6 +16,18 @@ #include "intel_gt.h" #include "intel_gt_regs.h" #include "intel_gtt.h" +#include "intel_vtd.h" + + +static bool intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915) +{ + return IS_BROXTON(i915) && intel_vtd_active(i915->drm.dev); +} + +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) { 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 2cbd1f58e754..cda71457d630 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..f03a63b57f05 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -96,6 +96,7 @@ #include "intel_pcode.h" #include "intel_pm.h" #include "intel_region_ttm.h" +#include "intel_vtd.h" #include "vlv_suspend.h"
static const struct drm_driver i915_drm_driver; @@ -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(intel_vtd_active(i915->drm.dev))); }
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 a8acc6fbb299..a221b19e588c 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -48,6 +48,7 @@ #include "gt/intel_gt.h" #include "gt/intel_gt_pm.h" #include "gt/intel_gt_regs.h" +#include "intel_vtd.h"
#include "i915_driver.h" #include "i915_drv.h" @@ -1814,7 +1815,7 @@ 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 = intel_vtd_active(i915->drm.dev); error->reset_count = i915_reset_count(&i915->gpu_error); error->suspend_count = i915->suspend_count;
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 8d458226f478..21423e6eacb3 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -30,6 +30,7 @@ #include "display/intel_cdclk.h" #include "display/intel_de.h" #include "intel_device_info.h" +#include "intel_vtd.h" #include "i915_drv.h"
#define PLATFORM_NAME(x) [INTEL_##x] = #x @@ -389,7 +390,8 @@ 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 && + intel_vtd_active(dev_priv->drm.dev)) { 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..c232343d5ba7 100644 --- a/drivers/gpu/drm/i915/intel_pch.c +++ b/drivers/gpu/drm/i915/intel_pch.c @@ -5,6 +5,7 @@
#include "i915_drv.h" #include "intel_pch.h" +#include "intel_vtd.h"
/* Map PCH device id to PCH type, or PCH_NONE if unknown. */ static enum intel_pch @@ -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 (intel_vtd_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; diff --git a/drivers/gpu/drm/i915/intel_vtd.h b/drivers/gpu/drm/i915/intel_vtd.h new file mode 100644 index 000000000000..1aa5d813f002 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_vtd.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef __INTEL_VTD_H__ +#define __INTEL_VTD_H__ + +#include <linux/device.h> +#include <linux/types.h> +#include <asm/hypervisor.h> + +static inline bool intel_vtd_run_as_guest(void) +{ + return !hypervisor_is_type(X86_HYPER_NATIVE); +} + +static inline bool intel_vtd_active(struct device *dev) +{ + if (device_iommu_mapped(dev)) + return true; + + /* Running as a guest, we assume the host is enforcing VT'd */ + return intel_vtd_run_as_guest(); +} + +#endif /* __INTEL_VTD_H__ */
On Tue, 22 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
From: Tvrtko Ursulin tvrtko.ursulin@intel.com
...
Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com
Typed up how I see it - bash away.
So is intel_vtd_active() so performance critical that it needs to be inline?
We're passing struct drm_i915_private * everywhere we can, and it just feels silly to use struct drm_device * to avoid the include.
Static inlines considered harmful. :p
BR, Jani.
drivers/gpu/drm/i915/display/intel_bw.c | 3 +- drivers/gpu/drm/i915/display/intel_display.c | 9 ++++- 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/intel_device_info.c | 4 ++- drivers/gpu/drm/i915/intel_pch.c | 3 +- drivers/gpu/drm/i915/intel_vtd.h | 27 ++++++++++++++ 17 files changed, 76 insertions(+), 48 deletions(-) create mode 100644 drivers/gpu/drm/i915/intel_vtd.h
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index ac11ff19e47d..6c9cb4f97218 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -13,6 +13,7 @@ #include "intel_mchbar_regs.h" #include "intel_pcode.h" #include "intel_pm.h" +#include "intel_vtd.h"
/* Parameters for Qclk Geyserville (QGV) */ struct intel_qgv_point { @@ -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 && intel_vtd_active(dev_priv->drm.dev)) 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..e80f3ca3ee4e 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -110,6 +110,7 @@ #include "intel_quirks.h" #include "intel_sprite.h" #include "intel_tc.h" +#include "intel_vtd.h" #include "intel_vga.h" #include "i9xx_plane.h" #include "skl_scaler.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 && intel_vtd_active(i915->drm.dev) && (DISPLAY_VER(i915) == 9 || IS_BROADWELL(i915) || IS_HASWELL(i915));
}
@@ -10699,3 +10700,9 @@ 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 *dev_priv) +{
- return DISPLAY_VER(dev_priv) >= 6 &&
intel_vtd_active(dev_priv->drm.dev);+} diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 8513703086b7..d69587c76e71 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 *dev_priv);
#endif diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 142280b6ce6d..00a3e30587a5 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -50,6 +50,7 @@ #include "intel_display_types.h" #include "intel_fbc.h" #include "intel_frontbuffer.h" +#include "intel_vtd.h"
#define for_each_fbc_id(__dev_priv, __fbc_id) \ for ((__fbc_id) = INTEL_FBC_A; (__fbc_id) < I915_MAX_FBCS; (__fbc_id)++) \ @@ -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 (intel_vtd_active(i915->drm.dev) && (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..9b986b1b0b60 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c @@ -19,6 +19,7 @@ #include "i915_reg.h" #include "i915_vgpu.h" #include "intel_mchbar_regs.h" +#include "intel_vtd.h"
/*
- The BIOS typically reserves some of the system's memory for the exclusive
@@ -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 (intel_vtd_active(i915->drm.dev) && 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..271826642bd4 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 "intel_vtd.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 (intel_vtd_active(i915->drm.dev)) { 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..386181cec300 100644 --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c @@ -21,6 +21,7 @@ #include "i915_vgpu.h"
#include "intel_gtt.h" +#include "intel_vtd.h" #include "gen8_ppgtt.h"
static void i915_ggtt_color_adjust(const struct drm_mm_node *node, @@ -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 (!intel_vtd_active(i915->drm.dev)) 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 (intel_vtd_active(i915->drm.dev)) 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 aed6de2d5a79..ee17e987cddc 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.c +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c @@ -16,6 +16,18 @@ #include "intel_gt.h" #include "intel_gt_regs.h" #include "intel_gtt.h" +#include "intel_vtd.h"
+static bool intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915) +{
- return IS_BROXTON(i915) && intel_vtd_active(i915->drm.dev);
+}
+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) { 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 2cbd1f58e754..cda71457d630 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..f03a63b57f05 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -96,6 +96,7 @@ #include "intel_pcode.h" #include "intel_pm.h" #include "intel_region_ttm.h" +#include "intel_vtd.h" #include "vlv_suspend.h"
static const struct drm_driver i915_drm_driver; @@ -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(intel_vtd_active(i915->drm.dev)));}
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 a8acc6fbb299..a221b19e588c 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -48,6 +48,7 @@ #include "gt/intel_gt.h" #include "gt/intel_gt_pm.h" #include "gt/intel_gt_regs.h" +#include "intel_vtd.h"
#include "i915_driver.h" #include "i915_drv.h" @@ -1814,7 +1815,7 @@ 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 = intel_vtd_active(i915->drm.dev); error->reset_count = i915_reset_count(&i915->gpu_error); error->suspend_count = i915->suspend_count;
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 8d458226f478..21423e6eacb3 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -30,6 +30,7 @@ #include "display/intel_cdclk.h" #include "display/intel_de.h" #include "intel_device_info.h" +#include "intel_vtd.h" #include "i915_drv.h"
#define PLATFORM_NAME(x) [INTEL_##x] = #x @@ -389,7 +390,8 @@ 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 &&
intel_vtd_active(dev_priv->drm.dev)) {diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c index 4cce044efde2..c232343d5ba7 100644 --- a/drivers/gpu/drm/i915/intel_pch.c +++ b/drivers/gpu/drm/i915/intel_pch.c @@ -5,6 +5,7 @@
#include "i915_drv.h" #include "intel_pch.h" +#include "intel_vtd.h"
/* Map PCH device id to PCH type, or PCH_NONE if unknown. */ static enum intel_pch @@ -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 (intel_vtd_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;diff --git a/drivers/gpu/drm/i915/intel_vtd.h b/drivers/gpu/drm/i915/intel_vtd.h new file mode 100644 index 000000000000..1aa5d813f002 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_vtd.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: MIT */ +/*
- Copyright © 2022 Intel Corporation
- */
+#ifndef __INTEL_VTD_H__ +#define __INTEL_VTD_H__
+#include <linux/device.h> +#include <linux/types.h> +#include <asm/hypervisor.h>
+static inline bool intel_vtd_run_as_guest(void) +{
- return !hypervisor_is_type(X86_HYPER_NATIVE);
+}
+static inline bool intel_vtd_active(struct device *dev) +{
- if (device_iommu_mapped(dev))
return true;- /* Running as a guest, we assume the host is enforcing VT'd */
- return intel_vtd_run_as_guest();
+}
+#endif /* __INTEL_VTD_H__ */
On Thu, 24 Mar 2022, Jani Nikula jani.nikula@intel.com wrote:
On Tue, 22 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
From: Tvrtko Ursulin tvrtko.ursulin@intel.com
...
Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com
Typed up how I see it - bash away.
So is intel_vtd_active() so performance critical that it needs to be inline?
We're passing struct drm_i915_private * everywhere we can, and it just feels silly to use struct drm_device * to avoid the include.
Static inlines considered harmful. :p
Otherwise,
Acked-by: Jani Nikula jani.nikula@intel.com
BR, Jani.
drivers/gpu/drm/i915/display/intel_bw.c | 3 +- drivers/gpu/drm/i915/display/intel_display.c | 9 ++++- 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/intel_device_info.c | 4 ++- drivers/gpu/drm/i915/intel_pch.c | 3 +- drivers/gpu/drm/i915/intel_vtd.h | 27 ++++++++++++++ 17 files changed, 76 insertions(+), 48 deletions(-) create mode 100644 drivers/gpu/drm/i915/intel_vtd.h
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index ac11ff19e47d..6c9cb4f97218 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -13,6 +13,7 @@ #include "intel_mchbar_regs.h" #include "intel_pcode.h" #include "intel_pm.h" +#include "intel_vtd.h"
/* Parameters for Qclk Geyserville (QGV) */ struct intel_qgv_point { @@ -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 && intel_vtd_active(dev_priv->drm.dev)) 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..e80f3ca3ee4e 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -110,6 +110,7 @@ #include "intel_quirks.h" #include "intel_sprite.h" #include "intel_tc.h" +#include "intel_vtd.h" #include "intel_vga.h" #include "i9xx_plane.h" #include "skl_scaler.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 && intel_vtd_active(i915->drm.dev) && (DISPLAY_VER(i915) == 9 || IS_BROADWELL(i915) || IS_HASWELL(i915));
}
@@ -10699,3 +10700,9 @@ 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 *dev_priv) +{
- return DISPLAY_VER(dev_priv) >= 6 &&
intel_vtd_active(dev_priv->drm.dev);+} diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 8513703086b7..d69587c76e71 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 *dev_priv);
#endif diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 142280b6ce6d..00a3e30587a5 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -50,6 +50,7 @@ #include "intel_display_types.h" #include "intel_fbc.h" #include "intel_frontbuffer.h" +#include "intel_vtd.h"
#define for_each_fbc_id(__dev_priv, __fbc_id) \ for ((__fbc_id) = INTEL_FBC_A; (__fbc_id) < I915_MAX_FBCS; (__fbc_id)++) \ @@ -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 (intel_vtd_active(i915->drm.dev) && (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..9b986b1b0b60 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c @@ -19,6 +19,7 @@ #include "i915_reg.h" #include "i915_vgpu.h" #include "intel_mchbar_regs.h" +#include "intel_vtd.h"
/*
- The BIOS typically reserves some of the system's memory for the exclusive
@@ -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 (intel_vtd_active(i915->drm.dev) && 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..271826642bd4 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 "intel_vtd.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 (intel_vtd_active(i915->drm.dev)) { 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..386181cec300 100644 --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c @@ -21,6 +21,7 @@ #include "i915_vgpu.h"
#include "intel_gtt.h" +#include "intel_vtd.h" #include "gen8_ppgtt.h"
static void i915_ggtt_color_adjust(const struct drm_mm_node *node, @@ -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 (!intel_vtd_active(i915->drm.dev)) 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 (intel_vtd_active(i915->drm.dev)) 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 aed6de2d5a79..ee17e987cddc 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.c +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c @@ -16,6 +16,18 @@ #include "intel_gt.h" #include "intel_gt_regs.h" #include "intel_gtt.h" +#include "intel_vtd.h"
+static bool intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915) +{
- return IS_BROXTON(i915) && intel_vtd_active(i915->drm.dev);
+}
+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) { 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 2cbd1f58e754..cda71457d630 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..f03a63b57f05 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -96,6 +96,7 @@ #include "intel_pcode.h" #include "intel_pm.h" #include "intel_region_ttm.h" +#include "intel_vtd.h" #include "vlv_suspend.h"
static const struct drm_driver i915_drm_driver; @@ -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(intel_vtd_active(i915->drm.dev)));}
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 a8acc6fbb299..a221b19e588c 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -48,6 +48,7 @@ #include "gt/intel_gt.h" #include "gt/intel_gt_pm.h" #include "gt/intel_gt_regs.h" +#include "intel_vtd.h"
#include "i915_driver.h" #include "i915_drv.h" @@ -1814,7 +1815,7 @@ 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 = intel_vtd_active(i915->drm.dev); error->reset_count = i915_reset_count(&i915->gpu_error); error->suspend_count = i915->suspend_count;
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 8d458226f478..21423e6eacb3 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -30,6 +30,7 @@ #include "display/intel_cdclk.h" #include "display/intel_de.h" #include "intel_device_info.h" +#include "intel_vtd.h" #include "i915_drv.h"
#define PLATFORM_NAME(x) [INTEL_##x] = #x @@ -389,7 +390,8 @@ 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 &&
intel_vtd_active(dev_priv->drm.dev)) {diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c index 4cce044efde2..c232343d5ba7 100644 --- a/drivers/gpu/drm/i915/intel_pch.c +++ b/drivers/gpu/drm/i915/intel_pch.c @@ -5,6 +5,7 @@
#include "i915_drv.h" #include "intel_pch.h" +#include "intel_vtd.h"
/* Map PCH device id to PCH type, or PCH_NONE if unknown. */ static enum intel_pch @@ -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 (intel_vtd_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;diff --git a/drivers/gpu/drm/i915/intel_vtd.h b/drivers/gpu/drm/i915/intel_vtd.h new file mode 100644 index 000000000000..1aa5d813f002 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_vtd.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: MIT */ +/*
- Copyright © 2022 Intel Corporation
- */
+#ifndef __INTEL_VTD_H__ +#define __INTEL_VTD_H__
+#include <linux/device.h> +#include <linux/types.h> +#include <asm/hypervisor.h>
+static inline bool intel_vtd_run_as_guest(void) +{
- return !hypervisor_is_type(X86_HYPER_NATIVE);
+}
+static inline bool intel_vtd_active(struct device *dev) +{
- if (device_iommu_mapped(dev))
return true;- /* Running as a guest, we assume the host is enforcing VT'd */
- return intel_vtd_run_as_guest();
+}
+#endif /* __INTEL_VTD_H__ */
On 24/03/2022 09:31, Jani Nikula wrote:
On Tue, 22 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
From: Tvrtko Ursulin tvrtko.ursulin@intel.com
...
Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com
Typed up how I see it - bash away.
So is intel_vtd_active() so performance critical that it needs to be inline?
We're passing struct drm_i915_private * everywhere we can, and it just feels silly to use struct drm_device * to avoid the include.
Static inlines considered harmful. :p
Same as it is ;), and gee, who was it that he said he was just trying to declutter i915_drv.h.. ;p
Regards,
Tvrtko
BR, Jani.
drivers/gpu/drm/i915/display/intel_bw.c | 3 +- drivers/gpu/drm/i915/display/intel_display.c | 9 ++++- 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/intel_device_info.c | 4 ++- drivers/gpu/drm/i915/intel_pch.c | 3 +- drivers/gpu/drm/i915/intel_vtd.h | 27 ++++++++++++++ 17 files changed, 76 insertions(+), 48 deletions(-) create mode 100644 drivers/gpu/drm/i915/intel_vtd.h
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index ac11ff19e47d..6c9cb4f97218 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -13,6 +13,7 @@ #include "intel_mchbar_regs.h" #include "intel_pcode.h" #include "intel_pm.h" +#include "intel_vtd.h"
/* Parameters for Qclk Geyserville (QGV) */ struct intel_qgv_point { @@ -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 && intel_vtd_active(dev_priv->drm.dev)) 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..e80f3ca3ee4e 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -110,6 +110,7 @@ #include "intel_quirks.h" #include "intel_sprite.h" #include "intel_tc.h" +#include "intel_vtd.h" #include "intel_vga.h" #include "i9xx_plane.h" #include "skl_scaler.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 && intel_vtd_active(i915->drm.dev) && (DISPLAY_VER(i915) == 9 || IS_BROADWELL(i915) || IS_HASWELL(i915)); }
@@ -10699,3 +10700,9 @@ 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 *dev_priv) +{
- return DISPLAY_VER(dev_priv) >= 6 &&
intel_vtd_active(dev_priv->drm.dev);+} diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 8513703086b7..d69587c76e71 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 *dev_priv);
- #endif
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 142280b6ce6d..00a3e30587a5 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -50,6 +50,7 @@ #include "intel_display_types.h" #include "intel_fbc.h" #include "intel_frontbuffer.h" +#include "intel_vtd.h"
#define for_each_fbc_id(__dev_priv, __fbc_id) \ for ((__fbc_id) = INTEL_FBC_A; (__fbc_id) < I915_MAX_FBCS; (__fbc_id)++) \ @@ -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 (intel_vtd_active(i915->drm.dev) && (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..9b986b1b0b60 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c @@ -19,6 +19,7 @@ #include "i915_reg.h" #include "i915_vgpu.h" #include "intel_mchbar_regs.h" +#include "intel_vtd.h"
/*
- The BIOS typically reserves some of the system's memory for the exclusive
@@ -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 (intel_vtd_active(i915->drm.dev) && 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..271826642bd4 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 "intel_vtd.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 (intel_vtd_active(i915->drm.dev)) { 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..386181cec300 100644 --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c @@ -21,6 +21,7 @@ #include "i915_vgpu.h"
#include "intel_gtt.h" +#include "intel_vtd.h" #include "gen8_ppgtt.h"
static void i915_ggtt_color_adjust(const struct drm_mm_node *node, @@ -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 (!intel_vtd_active(i915->drm.dev)) 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 (intel_vtd_active(i915->drm.dev)) 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 aed6de2d5a79..ee17e987cddc 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.c +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c @@ -16,6 +16,18 @@ #include "intel_gt.h" #include "intel_gt_regs.h" #include "intel_gtt.h" +#include "intel_vtd.h"
+static bool intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915) +{
- return IS_BROXTON(i915) && intel_vtd_active(i915->drm.dev);
+}
+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) { 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 2cbd1f58e754..cda71457d630 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..f03a63b57f05 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -96,6 +96,7 @@ #include "intel_pcode.h" #include "intel_pm.h" #include "intel_region_ttm.h" +#include "intel_vtd.h" #include "vlv_suspend.h"
static const struct drm_driver i915_drm_driver; @@ -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(intel_vtd_active(i915->drm.dev)));}
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 a8acc6fbb299..a221b19e588c 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -48,6 +48,7 @@ #include "gt/intel_gt.h" #include "gt/intel_gt_pm.h" #include "gt/intel_gt_regs.h" +#include "intel_vtd.h"
#include "i915_driver.h" #include "i915_drv.h" @@ -1814,7 +1815,7 @@ 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 = intel_vtd_active(i915->drm.dev); error->reset_count = i915_reset_count(&i915->gpu_error); error->suspend_count = i915->suspend_count;
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 8d458226f478..21423e6eacb3 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -30,6 +30,7 @@ #include "display/intel_cdclk.h" #include "display/intel_de.h" #include "intel_device_info.h" +#include "intel_vtd.h" #include "i915_drv.h"
#define PLATFORM_NAME(x) [INTEL_##x] = #x @@ -389,7 +390,8 @@ 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 &&
intel_vtd_active(dev_priv->drm.dev)) {diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c index 4cce044efde2..c232343d5ba7 100644 --- a/drivers/gpu/drm/i915/intel_pch.c +++ b/drivers/gpu/drm/i915/intel_pch.c @@ -5,6 +5,7 @@
#include "i915_drv.h" #include "intel_pch.h" +#include "intel_vtd.h"
/* Map PCH device id to PCH type, or PCH_NONE if unknown. */ static enum intel_pch @@ -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 (intel_vtd_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;diff --git a/drivers/gpu/drm/i915/intel_vtd.h b/drivers/gpu/drm/i915/intel_vtd.h new file mode 100644 index 000000000000..1aa5d813f002 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_vtd.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: MIT */ +/*
- Copyright © 2022 Intel Corporation
- */
+#ifndef __INTEL_VTD_H__ +#define __INTEL_VTD_H__
+#include <linux/device.h> +#include <linux/types.h> +#include <asm/hypervisor.h>
+static inline bool intel_vtd_run_as_guest(void) +{
- return !hypervisor_is_type(X86_HYPER_NATIVE);
+}
+static inline bool intel_vtd_active(struct device *dev) +{
- if (device_iommu_mapped(dev))
return true;- /* Running as a guest, we assume the host is enforcing VT'd */
- return intel_vtd_run_as_guest();
+}
+#endif /* __INTEL_VTD_H__ */
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 09:31, Jani Nikula wrote:
On Tue, 22 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
From: Tvrtko Ursulin tvrtko.ursulin@intel.com
...
Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com
Typed up how I see it - bash away.
So is intel_vtd_active() so performance critical that it needs to be inline?
We're passing struct drm_i915_private * everywhere we can, and it just feels silly to use struct drm_device * to avoid the include.
Static inlines considered harmful. :p
Same as it is ;), and gee, who was it that he said he was just trying to declutter i915_drv.h.. ;p
Not at the cost of clarity elsewhere!
Regards,
Tvrtko
BR, Jani.
drivers/gpu/drm/i915/display/intel_bw.c | 3 +- drivers/gpu/drm/i915/display/intel_display.c | 9 ++++- 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/intel_device_info.c | 4 ++- drivers/gpu/drm/i915/intel_pch.c | 3 +- drivers/gpu/drm/i915/intel_vtd.h | 27 ++++++++++++++ 17 files changed, 76 insertions(+), 48 deletions(-) create mode 100644 drivers/gpu/drm/i915/intel_vtd.h
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index ac11ff19e47d..6c9cb4f97218 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -13,6 +13,7 @@ #include "intel_mchbar_regs.h" #include "intel_pcode.h" #include "intel_pm.h" +#include "intel_vtd.h"
/* Parameters for Qclk Geyserville (QGV) */ struct intel_qgv_point { @@ -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 && intel_vtd_active(dev_priv->drm.dev)) 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..e80f3ca3ee4e 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -110,6 +110,7 @@ #include "intel_quirks.h" #include "intel_sprite.h" #include "intel_tc.h" +#include "intel_vtd.h" #include "intel_vga.h" #include "i9xx_plane.h" #include "skl_scaler.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 && intel_vtd_active(i915->drm.dev) && (DISPLAY_VER(i915) == 9 || IS_BROADWELL(i915) || IS_HASWELL(i915)); }
@@ -10699,3 +10700,9 @@ 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 *dev_priv) +{
- return DISPLAY_VER(dev_priv) >= 6 &&
intel_vtd_active(dev_priv->drm.dev);+} diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 8513703086b7..d69587c76e71 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 *dev_priv);
- #endif
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 142280b6ce6d..00a3e30587a5 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -50,6 +50,7 @@ #include "intel_display_types.h" #include "intel_fbc.h" #include "intel_frontbuffer.h" +#include "intel_vtd.h"
#define for_each_fbc_id(__dev_priv, __fbc_id) \ for ((__fbc_id) = INTEL_FBC_A; (__fbc_id) < I915_MAX_FBCS; (__fbc_id)++) \ @@ -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 (intel_vtd_active(i915->drm.dev) && (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..9b986b1b0b60 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c @@ -19,6 +19,7 @@ #include "i915_reg.h" #include "i915_vgpu.h" #include "intel_mchbar_regs.h" +#include "intel_vtd.h"
/*
- The BIOS typically reserves some of the system's memory for the exclusive
@@ -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 (intel_vtd_active(i915->drm.dev) && 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..271826642bd4 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 "intel_vtd.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 (intel_vtd_active(i915->drm.dev)) { 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..386181cec300 100644 --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c @@ -21,6 +21,7 @@ #include "i915_vgpu.h"
#include "intel_gtt.h" +#include "intel_vtd.h" #include "gen8_ppgtt.h"
static void i915_ggtt_color_adjust(const struct drm_mm_node *node, @@ -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 (!intel_vtd_active(i915->drm.dev)) 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 (intel_vtd_active(i915->drm.dev)) 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 aed6de2d5a79..ee17e987cddc 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.c +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c @@ -16,6 +16,18 @@ #include "intel_gt.h" #include "intel_gt_regs.h" #include "intel_gtt.h" +#include "intel_vtd.h"
+static bool intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915) +{
- return IS_BROXTON(i915) && intel_vtd_active(i915->drm.dev);
+}
+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) { 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 2cbd1f58e754..cda71457d630 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..f03a63b57f05 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -96,6 +96,7 @@ #include "intel_pcode.h" #include "intel_pm.h" #include "intel_region_ttm.h" +#include "intel_vtd.h" #include "vlv_suspend.h"
static const struct drm_driver i915_drm_driver; @@ -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(intel_vtd_active(i915->drm.dev)));}
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 a8acc6fbb299..a221b19e588c 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -48,6 +48,7 @@ #include "gt/intel_gt.h" #include "gt/intel_gt_pm.h" #include "gt/intel_gt_regs.h" +#include "intel_vtd.h"
#include "i915_driver.h" #include "i915_drv.h" @@ -1814,7 +1815,7 @@ 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 = intel_vtd_active(i915->drm.dev); error->reset_count = i915_reset_count(&i915->gpu_error); error->suspend_count = i915->suspend_count;
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 8d458226f478..21423e6eacb3 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -30,6 +30,7 @@ #include "display/intel_cdclk.h" #include "display/intel_de.h" #include "intel_device_info.h" +#include "intel_vtd.h" #include "i915_drv.h"
#define PLATFORM_NAME(x) [INTEL_##x] = #x @@ -389,7 +390,8 @@ 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 &&
intel_vtd_active(dev_priv->drm.dev)) {diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c index 4cce044efde2..c232343d5ba7 100644 --- a/drivers/gpu/drm/i915/intel_pch.c +++ b/drivers/gpu/drm/i915/intel_pch.c @@ -5,6 +5,7 @@
#include "i915_drv.h" #include "intel_pch.h" +#include "intel_vtd.h"
/* Map PCH device id to PCH type, or PCH_NONE if unknown. */ static enum intel_pch @@ -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 (intel_vtd_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;diff --git a/drivers/gpu/drm/i915/intel_vtd.h b/drivers/gpu/drm/i915/intel_vtd.h new file mode 100644 index 000000000000..1aa5d813f002 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_vtd.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: MIT */ +/*
- Copyright © 2022 Intel Corporation
- */
+#ifndef __INTEL_VTD_H__ +#define __INTEL_VTD_H__
+#include <linux/device.h> +#include <linux/types.h> +#include <asm/hypervisor.h>
+static inline bool intel_vtd_run_as_guest(void) +{
- return !hypervisor_is_type(X86_HYPER_NATIVE);
+}
+static inline bool intel_vtd_active(struct device *dev) +{
- if (device_iommu_mapped(dev))
return true;- /* Running as a guest, we assume the host is enforcing VT'd */
- return intel_vtd_run_as_guest();
+}
+#endif /* __INTEL_VTD_H__ */
On 24/03/2022 11:57, Jani Nikula wrote:
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 09:31, Jani Nikula wrote:
On Tue, 22 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
From: Tvrtko Ursulin tvrtko.ursulin@intel.com
...
Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com
Typed up how I see it - bash away.
So is intel_vtd_active() so performance critical that it needs to be inline?
We're passing struct drm_i915_private * everywhere we can, and it just feels silly to use struct drm_device * to avoid the include.
Static inlines considered harmful. :p
Same as it is ;), and gee, who was it that he said he was just trying to declutter i915_drv.h.. ;p
Not at the cost of clarity elsewhere!
To be clear now you oppose intel_vtd_active taking struct device? I thought you expressed general agreement when I presented the idea in the previous thread.
I don't mind hugely to go either way, but I also don't see how taking struct device makes anything unclear. (I only think intel_vtd_run_as_guest is really wrong in this story but that's old news.)
And if I make it take i915 then I would want to name it i915_vtd_active as well. But then you wouldn't like that.
Should we just stuff all this into i915_utils for now, as I think Lucas suggested? Static inline or not, I don't care.
Regards,
Tvrtko
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 11:57, Jani Nikula wrote:
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 09:31, Jani Nikula wrote:
On Tue, 22 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
From: Tvrtko Ursulin tvrtko.ursulin@intel.com
...
Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com
Typed up how I see it - bash away.
So is intel_vtd_active() so performance critical that it needs to be inline?
We're passing struct drm_i915_private * everywhere we can, and it just feels silly to use struct drm_device * to avoid the include.
Static inlines considered harmful. :p
Same as it is ;), and gee, who was it that he said he was just trying to declutter i915_drv.h.. ;p
Not at the cost of clarity elsewhere!
To be clear now you oppose intel_vtd_active taking struct device? I thought you expressed general agreement when I presented the idea in the previous thread.
I don't mind hugely to go either way, but I also don't see how taking struct device makes anything unclear. (I only think intel_vtd_run_as_guest is really wrong in this story but that's old news.)
And if I make it take i915 then I would want to name it i915_vtd_active as well. But then you wouldn't like that.
Should we just stuff all this into i915_utils for now, as I think Lucas suggested? Static inline or not, I don't care.
Just general grumpiness.
Acked-by: Jani Nikula jani.nikula@intel.com
Regards,
Tvrtko
On 24/03/2022 18:57, Jani Nikula wrote:
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 11:57, Jani Nikula wrote:
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 09:31, Jani Nikula wrote:
On Tue, 22 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
From: Tvrtko Ursulin tvrtko.ursulin@intel.com
...
Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Lucas De Marchi lucas.demarchi@intel.com
Typed up how I see it - bash away.
So is intel_vtd_active() so performance critical that it needs to be inline?
We're passing struct drm_i915_private * everywhere we can, and it just feels silly to use struct drm_device * to avoid the include.
Static inlines considered harmful. :p
Same as it is ;), and gee, who was it that he said he was just trying to declutter i915_drv.h.. ;p
Not at the cost of clarity elsewhere!
To be clear now you oppose intel_vtd_active taking struct device? I thought you expressed general agreement when I presented the idea in the previous thread.
I don't mind hugely to go either way, but I also don't see how taking struct device makes anything unclear. (I only think intel_vtd_run_as_guest is really wrong in this story but that's old news.)
And if I make it take i915 then I would want to name it i915_vtd_active as well. But then you wouldn't like that.
Should we just stuff all this into i915_utils for now, as I think Lucas suggested? Static inline or not, I don't care.
Just general grumpiness.
Acked-by: Jani Nikula jani.nikula@intel.com
No worries. Ack is for this version or with i915_ prefixes in i915_utils.h/c?
Regards,
Tvrtko
On Fri, 25 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 18:57, Jani Nikula wrote:
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 11:57, Jani Nikula wrote:
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 09:31, Jani Nikula wrote:
On Tue, 22 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote: > From: Tvrtko Ursulin tvrtko.ursulin@intel.com > > ... > > Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com > Cc: Jani Nikula jani.nikula@intel.com > Cc: Lucas De Marchi lucas.demarchi@intel.com > --- > Typed up how I see it - bash away.
So is intel_vtd_active() so performance critical that it needs to be inline?
We're passing struct drm_i915_private * everywhere we can, and it just feels silly to use struct drm_device * to avoid the include.
Static inlines considered harmful. :p
Same as it is ;), and gee, who was it that he said he was just trying to declutter i915_drv.h.. ;p
Not at the cost of clarity elsewhere!
To be clear now you oppose intel_vtd_active taking struct device? I thought you expressed general agreement when I presented the idea in the previous thread.
I don't mind hugely to go either way, but I also don't see how taking struct device makes anything unclear. (I only think intel_vtd_run_as_guest is really wrong in this story but that's old news.)
And if I make it take i915 then I would want to name it i915_vtd_active as well. But then you wouldn't like that.
Should we just stuff all this into i915_utils for now, as I think Lucas suggested? Static inline or not, I don't care.
Just general grumpiness.
Acked-by: Jani Nikula jani.nikula@intel.com
No worries. Ack is for this version or with i915_ prefixes in i915_utils.h/c?
Both. Either. ;)
Regards,
Tvrtko
On Fri, Mar 25, 2022 at 02:09:33PM +0200, Jani Nikula wrote:
On Fri, 25 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 18:57, Jani Nikula wrote:
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 11:57, Jani Nikula wrote:
On Thu, 24 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote:
On 24/03/2022 09:31, Jani Nikula wrote: > On Tue, 22 Mar 2022, Tvrtko Ursulin tvrtko.ursulin@linux.intel.com wrote: >> From: Tvrtko Ursulin tvrtko.ursulin@intel.com >> >> ... >> >> Signed-off-by: Tvrtko Ursulin tvrtko.ursulin@intel.com >> Cc: Jani Nikula jani.nikula@intel.com >> Cc: Lucas De Marchi lucas.demarchi@intel.com >> --- >> Typed up how I see it - bash away. > > So is intel_vtd_active() so performance critical that it needs to be > inline? > > We're passing struct drm_i915_private * everywhere we can, and it just > feels silly to use struct drm_device * to avoid the include. > > Static inlines considered harmful. :p
Same as it is ;), and gee, who was it that he said he was just trying to declutter i915_drv.h.. ;p
Not at the cost of clarity elsewhere!
To be clear now you oppose intel_vtd_active taking struct device? I thought you expressed general agreement when I presented the idea in the previous thread.
I don't mind hugely to go either way, but I also don't see how taking struct device makes anything unclear. (I only think intel_vtd_run_as_guest is really wrong in this story but that's old news.)
And if I make it take i915 then I would want to name it i915_vtd_active as well. But then you wouldn't like that.
Should we just stuff all this into i915_utils for now, as I think Lucas suggested? Static inline or not, I don't care.
Just general grumpiness.
Acked-by: Jani Nikula jani.nikula@intel.com
No worries. Ack is for this version or with i915_ prefixes in i915_utils.h/c?
Both. Either. ;)
great, let's go with the one adding it to i915_util.h/c then.
thanks Lucas De Marchi
Regards,
Tvrtko
-- Jani Nikula, Intel Open Source Graphics Center
dri-devel@lists.freedesktop.org
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Jani Nikula -
Lucas De Marchi -
Tvrtko Ursulin