[PATCH v4 2/3] drm/msm/a6xx: Use rev to identify SKU

From: Akhil P Oommen
Date: Thu Jul 29 2021 - 15:52:16 EST


Use rev instead of revn to identify the SKU. This is in
preparation to the introduction of 7c3 gpu which won't have a
revn.

Signed-off-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>
---

Changes in v4:
- Move adreno_cmp_rev() here to fix compilation

drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 11 +++++------
drivers/gpu/drm/msm/adreno/adreno_device.c | 16 ++++++++++------
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 4 ++++
3 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 183b9f9..0da1a66 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1675,11 +1675,11 @@ static u32 a618_get_speed_bin(u32 fuse)
return UINT_MAX;
}

-static u32 fuse_to_supp_hw(struct device *dev, u32 revn, u32 fuse)
+static u32 fuse_to_supp_hw(struct device *dev, struct adreno_rev rev, u32 fuse)
{
u32 val = UINT_MAX;

- if (revn == 618)
+ if (adreno_cmp_rev(ADRENO_REV(6, 1, 8, ANY_ID), rev))
val = a618_get_speed_bin(fuse);

if (val == UINT_MAX) {
@@ -1692,8 +1692,7 @@ static u32 fuse_to_supp_hw(struct device *dev, u32 revn, u32 fuse)
return (1 << val);
}

-static int a6xx_set_supported_hw(struct device *dev, struct a6xx_gpu *a6xx_gpu,
- u32 revn)
+static int a6xx_set_supported_hw(struct device *dev, struct adreno_rev rev)
{
u32 supp_hw = UINT_MAX;
u16 speedbin;
@@ -1714,7 +1713,7 @@ static int a6xx_set_supported_hw(struct device *dev, struct a6xx_gpu *a6xx_gpu,
}
speedbin = le16_to_cpu(speedbin);

- supp_hw = fuse_to_supp_hw(dev, revn, speedbin);
+ supp_hw = fuse_to_supp_hw(dev, rev, speedbin);

done:
ret = devm_pm_opp_set_supported_hw(dev, &supp_hw, 1);
@@ -1785,7 +1784,7 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)

a6xx_llc_slices_init(pdev, a6xx_gpu);

- ret = a6xx_set_supported_hw(&pdev->dev, a6xx_gpu, info->revn);
+ ret = a6xx_set_supported_hw(&pdev->dev, config->rev);
if (ret) {
a6xx_destroy(&(a6xx_gpu->base.base));
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 6dad801..7e6fafe 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -8,8 +8,6 @@

#include "adreno_gpu.h"

-#define ANY_ID 0xff
-
bool hang_debug = false;
MODULE_PARM_DESC(hang_debug, "Dump registers when hang is detected (can be slow!)");
module_param_named(hang_debug, hang_debug, bool, 0600);
@@ -325,6 +323,15 @@ static inline bool _rev_match(uint8_t entry, uint8_t id)
return (entry == ANY_ID) || (entry == id);
}

+bool adreno_cmp_rev(struct adreno_rev rev1, struct adreno_rev rev2)
+{
+
+ return _rev_match(rev1.core, rev2.core) &&
+ _rev_match(rev1.major, rev2.major) &&
+ _rev_match(rev1.minor, rev2.minor) &&
+ _rev_match(rev1.patchid, rev2.patchid);
+}
+
const struct adreno_info *adreno_info(struct adreno_rev rev)
{
int i;
@@ -332,10 +339,7 @@ const struct adreno_info *adreno_info(struct adreno_rev rev)
/* identify gpu: */
for (i = 0; i < ARRAY_SIZE(gpulist); i++) {
const struct adreno_info *info = &gpulist[i];
- if (_rev_match(info->rev.core, rev.core) &&
- _rev_match(info->rev.major, rev.major) &&
- _rev_match(info->rev.minor, rev.minor) &&
- _rev_match(info->rev.patchid, rev.patchid))
+ if (adreno_cmp_rev(info->rev, rev))
return info;
}

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 8dbe0d1..a368a16 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -42,6 +42,8 @@ struct adreno_rev {
uint8_t patchid;
};

+#define ANY_ID 0xff
+
#define ADRENO_REV(core, major, minor, patchid) \
((struct adreno_rev){ core, major, minor, patchid })

@@ -141,6 +143,8 @@ struct adreno_platform_config {
__ret; \
})

+bool adreno_cmp_rev(struct adreno_rev rev1, struct adreno_rev rev2);
+
static inline bool adreno_is_a2xx(struct adreno_gpu *gpu)
{
return (gpu->revn < 300);
--
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