From 8322adedc0f2ed98a1e12a8dbdfa4fbbb3f17fba Mon Sep 17 00:00:00 2001 From: Ashutosh Dixit Date: Mon, 1 Dec 2025 18:51:15 -0800 Subject: [PATCH] drm/xe/rtp: Whitelist OAM MMIO trigger registers Whitelist OAM registers to enable userspace to execute MMIO triggers on OAM units. Signed-off-by: Ashutosh Dixit Reviewed-by: Umesh Nerlige Ramappa Link: https://patch.msgid.link/20251202025115.373546-6-ashutosh.dixit@intel.com --- drivers/gpu/drm/xe/regs/xe_oa_regs.h | 8 ++++++++ drivers/gpu/drm/xe/xe_oa.c | 7 +++---- drivers/gpu/drm/xe/xe_reg_whitelist.c | 21 +++++++++++++++++++++ 3 files changed, 32 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/xe/regs/xe_oa_regs.h b/drivers/gpu/drm/xe/regs/xe_oa_regs.h index e693a50706f84..638ab3b99eb0b 100644 --- a/drivers/gpu/drm/xe/regs/xe_oa_regs.h +++ b/drivers/gpu/drm/xe/regs/xe_oa_regs.h @@ -100,4 +100,12 @@ #define OAM_COMPRESSION_T3_CONTROL XE_REG(0x1c2e00) #define OAM_LAT_MEASURE_ENABLE REG_BIT(4) +/* Actual address is MEDIA_GT_GSI_OFFSET + the base addr below */ +#define XE_OAM_SAG_BASE 0x13000 +#define XE_OAM_SCMI_0_BASE 0x14000 +#define XE_OAM_SCMI_1_BASE 0x14800 +#define XE_OAM_SAG_BASE_ADJ (MEDIA_GT_GSI_OFFSET + XE_OAM_SAG_BASE) +#define XE_OAM_SCMI_0_BASE_ADJ (MEDIA_GT_GSI_OFFSET + XE_OAM_SCMI_0_BASE) +#define XE_OAM_SCMI_1_BASE_ADJ (MEDIA_GT_GSI_OFFSET + XE_OAM_SCMI_1_BASE) + #endif diff --git a/drivers/gpu/drm/xe/xe_oa.c b/drivers/gpu/drm/xe/xe_oa.c index d63c04e2d4922..cc48663c2b48f 100644 --- a/drivers/gpu/drm/xe/xe_oa.c +++ b/drivers/gpu/drm/xe/xe_oa.c @@ -2601,11 +2601,10 @@ static struct xe_oa_regs __oag_regs(void) static void __xe_oa_init_oa_units(struct xe_gt *gt) { - /* Actual address is MEDIA_GT_GSI_OFFSET + oam_base_addr[i] */ const u32 oam_base_addr[] = { - [XE_OAM_UNIT_SAG] = 0x13000, - [XE_OAM_UNIT_SCMI_0] = 0x14000, - [XE_OAM_UNIT_SCMI_1] = 0x14800, + [XE_OAM_UNIT_SAG] = XE_OAM_SAG_BASE, + [XE_OAM_UNIT_SCMI_0] = XE_OAM_SCMI_0_BASE, + [XE_OAM_UNIT_SCMI_1] = XE_OAM_SCMI_1_BASE, }; int i, num_units = gt->oa.num_oa_units; diff --git a/drivers/gpu/drm/xe/xe_reg_whitelist.c b/drivers/gpu/drm/xe/xe_reg_whitelist.c index e8e47aa16a5df..da49c69076a47 100644 --- a/drivers/gpu/drm/xe/xe_reg_whitelist.c +++ b/drivers/gpu/drm/xe/xe_reg_whitelist.c @@ -83,6 +83,17 @@ static const struct xe_rtp_entry_sr register_whitelist[] = { #define WHITELIST_OAG_MMIO_TRG \ WHITELIST_OA_MMIO_TRG(OAG_MMIOTRIGGER, OAG_OASTATUS, OAG_OAHEADPTR) +#define WHITELIST_OAM_MMIO_TRG \ + WHITELIST_OA_MMIO_TRG(OAM_MMIO_TRG(XE_OAM_SAG_BASE_ADJ), \ + OAM_STATUS(XE_OAM_SAG_BASE_ADJ), \ + OAM_HEAD_POINTER(XE_OAM_SAG_BASE_ADJ)), \ + WHITELIST_OA_MMIO_TRG(OAM_MMIO_TRG(XE_OAM_SCMI_0_BASE_ADJ), \ + OAM_STATUS(XE_OAM_SCMI_0_BASE_ADJ), \ + OAM_HEAD_POINTER(XE_OAM_SCMI_0_BASE_ADJ)), \ + WHITELIST_OA_MMIO_TRG(OAM_MMIO_TRG(XE_OAM_SCMI_1_BASE_ADJ), \ + OAM_STATUS(XE_OAM_SCMI_1_BASE_ADJ), \ + OAM_HEAD_POINTER(XE_OAM_SCMI_1_BASE_ADJ)) + { XE_RTP_NAME("oag_mmio_trg_rcs"), XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1200, XE_RTP_END_VERSION_UNDEFINED), ENGINE_CLASS(RENDER)), @@ -93,6 +104,16 @@ static const struct xe_rtp_entry_sr register_whitelist[] = { ENGINE_CLASS(COMPUTE)), XE_RTP_ACTIONS(WHITELIST_OAG_MMIO_TRG) }, + { XE_RTP_NAME("oam_mmio_trg_vcs"), + XE_RTP_RULES(MEDIA_VERSION_RANGE(1300, XE_RTP_END_VERSION_UNDEFINED), + ENGINE_CLASS(VIDEO_DECODE)), + XE_RTP_ACTIONS(WHITELIST_OAM_MMIO_TRG) + }, + { XE_RTP_NAME("oam_mmio_trg_vecs"), + XE_RTP_RULES(MEDIA_VERSION_RANGE(1300, XE_RTP_END_VERSION_UNDEFINED), + ENGINE_CLASS(VIDEO_ENHANCE)), + XE_RTP_ACTIONS(WHITELIST_OAM_MMIO_TRG) + }, }; static void whitelist_apply_to_hwe(struct xe_hw_engine *hwe) -- 2.47.3