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01 Apr 2025 08:36:16 -0700 From: Anshuman Gupta To: intel-xe@lists.freedesktop.org, linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org Cc: rafael@kernel.org, lenb@kernel.org, bhelgaas@google.com, ilpo.jarvinen@linux.intel.com, lucas.demarchi@intel.com, rodrigo.vivi@intel.com, badal.nilawar@intel.com, anshuman.gupta@intel.com, varun.gupta@intel.com, ville.syrjala@linux.intel.com, uma.shankar@intel.com Subject: [PATCH 04/12] drm/xe/vrsr: Introduce flag has_vrsr Date: Tue, 1 Apr 2025 21:02:17 +0530 Message-ID: <20250401153225.96379-5-anshuman.gupta@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250401153225.96379-1-anshuman.gupta@intel.com> References: <20250401153225.96379-1-anshuman.gupta@intel.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Badal Nilawar Introduce flag has_vrsr to determine if platform supports VRSR feature Cc: Rodrigo Vivi Signed-off-by: Badal Nilawar --- drivers/gpu/drm/xe/xe_device_types.h | 2 ++ drivers/gpu/drm/xe/xe_pci.c | 3 +++ 2 files changed, 5 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h index c54adebfe518..b8ccf729f7c0 100644 --- a/drivers/gpu/drm/xe/xe_device_types.h +++ b/drivers/gpu/drm/xe/xe_device_types.h @@ -334,6 +334,8 @@ struct xe_device { u8 has_sriov:1; /** @info.has_usm: Device has unified shared memory support */ u8 has_usm:1; + /** @info.has_vrsr: Has capability to enter into VRAM self refresh */ + u8 has_vrsr:1; /** @info.is_dgfx: is discrete device */ u8 is_dgfx:1; /** diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c index 772b6c81672c..70d4827f5821 100644 --- a/drivers/gpu/drm/xe/xe_pci.c +++ b/drivers/gpu/drm/xe/xe_pci.c @@ -68,6 +68,7 @@ struct xe_device_desc { u8 has_llc:1; u8 has_pxp:1; u8 has_sriov:1; + u8 has_vrsr:1; u8 skip_guc_pc:1; u8 skip_mtcfg:1; u8 skip_pcode:1; @@ -343,6 +344,7 @@ static const struct xe_device_desc bmg_desc = { .dma_mask_size = 46, .has_display = true, .has_fan_control = true, + .has_vrsr = true, .has_heci_cscfi = 1, }; @@ -589,6 +591,7 @@ static int xe_info_init_early(struct xe_device *xe, xe->info.has_llc = desc->has_llc; xe->info.has_pxp = desc->has_pxp; xe->info.has_sriov = desc->has_sriov; + xe->info.has_vrsr = desc->has_vrsr; xe->info.skip_guc_pc = desc->skip_guc_pc; xe->info.skip_mtcfg = desc->skip_mtcfg; xe->info.skip_pcode = desc->skip_pcode;