diff options
| author | Ketan Patil <ketanp@nvidia.com> | 2026-09-03 18:25:18 +0000 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2026-09-15 09:06:33 +0200 |
| commit | edda28d5317521c2f5172f869d3a433a2d37f7a2 (patch) | |
| tree | c3376fbb6f3da15ba889610c3193a0107f5c4378 /drivers/memory | |
| parent | cce46902ea9fcd585cd200fffa3166f63bc571f1 (diff) | |
memory: tegra: Use named defines for Tegra264 MC apertures
The Tegra264 memory controller error interrupts are distributed across
several HUB/HUBC apertures, each accessed like a broadcast channel using
a fixed index. These indices were kept in a bare mc_hubc_aperture_number[]
array, and handle_hub_irq() took a parameter of the same name that
shadowed it.
This driver is only applicable to Tegra264 devices and so this
abstraction is not needed. Replace the array with named
TEGRA264_MC_APERTURE_* defines to simplify the code.
No functional change intended.
Signed-off-by: Ketan Patil <ketanp@nvidia.com>
Link: https://patch.msgid.link/20260903182520.950555-2-ketanp@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'drivers/memory')
| -rw-r--r-- | drivers/memory/tegra/tegra264.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/memory/tegra/tegra264.c b/drivers/memory/tegra/tegra264.c index 790349295dcc..56e55269eed7 100644 --- a/drivers/memory/tegra/tegra264.c +++ b/drivers/memory/tegra/tegra264.c @@ -717,11 +717,15 @@ static const char *const tegra264_rt_error_names[16] = { }; /* - * MC instance aperture mapping for hubc registers + * On Tegra264 the memory controller error interrupts are distributed across + * several HUB/HUBC apertures. Each aperture is accessed like a broadcast + * channel through mc_ch_readl()/mc_ch_writel() using its fixed index. */ -static const int mc_hubc_aperture_number[5] = { - 7, 8, 9, 10, 11 -}; +#define TEGRA264_MC_APERTURE_DISP 7 +#define TEGRA264_MC_APERTURE_SYSTEM 8 +#define TEGRA264_MC_APERTURE_VISION 9 +#define TEGRA264_MC_APERTURE_UPHY 10 +#define TEGRA264_MC_APERTURE_TOP 11 /* * tegra264_mc_icc_set() - Pass MC client info to the BPMP-FW @@ -1057,27 +1061,27 @@ static irqreturn_t handle_hub_irq(int irq, void *data, int mc_hubc_aperture_numb static irqreturn_t handle_disp_hub_irq(int irq, void *data) { - return handle_hub_irq(irq, data, mc_hubc_aperture_number[0]); + return handle_hub_irq(irq, data, TEGRA264_MC_APERTURE_DISP); } static irqreturn_t handle_system_hub_irq(int irq, void *data) { - return handle_hub_irq(irq, data, mc_hubc_aperture_number[1]); + return handle_hub_irq(irq, data, TEGRA264_MC_APERTURE_SYSTEM); } static irqreturn_t handle_vision_hub_irq(int irq, void *data) { - return handle_hub_irq(irq, data, mc_hubc_aperture_number[2]); + return handle_hub_irq(irq, data, TEGRA264_MC_APERTURE_VISION); } static irqreturn_t handle_uphy_hub_irq(int irq, void *data) { - return handle_hub_irq(irq, data, mc_hubc_aperture_number[3]); + return handle_hub_irq(irq, data, TEGRA264_MC_APERTURE_UPHY); } static irqreturn_t handle_top_hub_irq(int irq, void *data) { - return handle_hub_irq(irq, data, mc_hubc_aperture_number[4]); + return handle_hub_irq(irq, data, TEGRA264_MC_APERTURE_TOP); } static irqreturn_t handle_generic_irq(struct tegra_mc *mc, unsigned long intstat_reg) |