From: Lijo Lazar <lijo.lazar@amd.com>
Date: Wed, 29 Jun 2022 10:56:49 +0000 (+0530)
Subject: drm/amdgpu: Add mask for SDMA instances
X-Git-Tag: xarray-6.6~248^2~7^2~542
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=4db6f200a5fef12666ab66e54bacb65c5d675e9d;p=users%2Fwilly%2Fxarray.git

drm/amdgpu: Add mask for SDMA instances

Add a mask of SDMA instances available for use. On certain ASIC configs,
not all SDMA instances are available for software use.

v2:
	Change sdma mask type to uint32_t (Le)

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
index 632b77138fe4..62afb282a3ff 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
@@ -48,6 +48,8 @@ enum amdgpu_sdma_irq {
 	AMDGPU_SDMA_IRQ_LAST
 };
 
+#define NUM_SDMA(x) hweight32(x)
+
 struct amdgpu_sdma_instance {
 	/* SDMA firmware */
 	const struct firmware	*fw;
@@ -75,6 +77,7 @@ struct amdgpu_sdma {
 	struct amdgpu_irq_src	srbm_write_irq;
 
 	int			num_instances;
+	uint32_t 		sdma_mask;
 	int			num_inst_per_aid;
 	uint32_t                    srbm_soft_reset;
 	bool			has_page_queue;