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CTRY:GB; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:outbound-uk1.az.dlp.m.darktrace.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(1800799024)(376014)(36860700013)(82310400026)(14060799003)(35042699022); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jul 2025 11:35:47.2344 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7ea8f8a9-3fdf-4ee6-b797-08ddc84abc92 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[4.158.2.129]; Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: AM3PEPF00009B9C.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAWPR08MB9967 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 11/06/2025 00:42, Chia-I Wu wrote: > On Mon, Jun 2, 2025 at 7:42 AM Karunika Choo wrote: >> >> As the FLUSH_MEM and FLUSH_PT commands are deprecated in GPUs from >> Mali-Gx20 onwards, this patch adds support for performing cache >> maintenance via the FLUSH_CACHES command in GPU_CONTROL, in place of >> FLUSH_MEM and FLUSH_PT based on PANTHOR_HW_FEATURE_GPU_CTRL_CACHE_FLUSH >> feature bit. >> >> This patch also enables cache maintenance via GPU_CONTROL for Mali-Gx10 >> and Mali-Gx15 GPUs for consistency. >> >> Signed-off-by: Karunika Choo >> --- >> drivers/gpu/drm/panthor/panthor_hw.c | 6 +++++ >> drivers/gpu/drm/panthor/panthor_hw.h | 6 +++++ >> drivers/gpu/drm/panthor/panthor_mmu.c | 35 +++++++++++++++++++++++++++ >> 3 files changed, 47 insertions(+) >> >> diff --git a/drivers/gpu/drm/panthor/panthor_hw.c b/drivers/gpu/drm/panthor/panthor_hw.c >> index f5127a4b02dc..5ec9d7f28368 100644 >> --- a/drivers/gpu/drm/panthor/panthor_hw.c >> +++ b/drivers/gpu/drm/panthor/panthor_hw.c >> @@ -99,9 +99,15 @@ static void panthor_hw_info_init(struct panthor_device *ptdev) >> static struct panthor_hw panthor_hw_devices[] = { >> { >> .arch_major = 10, >> + .features = { >> + BIT(PANTHOR_HW_FEATURE_GPU_CTRL_CACHE_FLUSH) >> + }, >> }, >> { >> .arch_major = 11, >> + .features = { >> + BIT(PANTHOR_HW_FEATURE_GPU_CTRL_CACHE_FLUSH) >> + }, >> }, >> }; > Are there going to be major archs which do not support > PANTHOR_HW_FEATURE_GPU_CTRL_CACHE_FLUSH? If not, we don't need the > feature bit. I have removed the feature bits and applied the change to all CSF GPUs in v5. - https://lore.kernel.org/all/20250721111344.1610250-6-karunika.choo@arm.com/